JP4806255B2 - Scale remover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for removing scale with which oxidized scale on the furnace bottom in a walking-beam type heating furnace can suitably be removed. <P>SOLUTION: The scale removing apparatus is provided with: a shifting device; a frame body; a loading board; a supporting body base part supported so as to be fitted to the loading board; a supporting body provided with a supporting body tip end part arranged so as to be freely advanced/retreated to the supporting body base part; and a rotation crushing device 80 arranged at the above supporting body tip end part and for crushing the oxidized scale: and further, the above rotation crushing device is provided with; a rotating body 81 for cutting and scraping up the oxidized scale with the plurality of blades 812, arranged at the outer body; a recovering hood 82 arranged under state of covering the upper part at outside of the rotating body and for covering the oxidized scale; a horizontal screw auger 86 horizontally set in the inner part of the recovering hood and horizontally transporting the oxidized scale recovered with the recovering hood; and a scale carrying device for carrying the oxidized scale recovered with this horizontal screw auger toward the above loading board side. <P>COPYRIGHT: (C)2007,JPO&amp;INPIT

Description

  The present invention relates to a scale removing device for removing oxide scale on a furnace bottom in a walking beam heating furnace.

  As shown in FIG. 1, the walking beam type heating furnace has a plurality of fixed girders W1 extending in the longitudinal direction of the furnace (the moving direction of the material) inside the heating furnace W and substantially parallel to the vicinity of these fixed girders W1. The moving girder W2 is provided. These two types of digits are collectively referred to as a walking beam or simply a beam. The moving girder W2 performs a series of operations (rectangular motion) of ascending, moving forward, and descending by a driving device (not shown), and hot rolling of slabs, billets and the like on the moving girder W2 is performed by the operation. The material is moved while being transferred onto the fixed beam W1, and heated.

In such a walking beam type heating furnace W, oxide scale generated by heating a rolling material such as a slab or billet is deposited on the furnace bottom of the heating furnace W, and therefore needs to be periodically removed.
However, a large number of support columns for supporting a skid for moving the rolling material are arranged at the bottom of the heating furnace W, and mechanical devices such as excavators and breakers are used in construction and civil engineering work. It is difficult to crush and remove the scale by putting it in the furnace bottom. For this reason, after cooling to about 60 degreeC in furnace temperature, the conveyor was brought in in the furnace, the scale was crushed manually with the pickle and the scoop, and it put on the conveyor and discharged | emitted out of the furnace.

  Such work has a very poor work environment and low work efficiency. From such a viewpoint, for example, a technique for removing scale on the bottom of a heating furnace using a scale removing device has been proposed (see, for example, Patent Document 1).

  In the configuration described in Patent Document 1, the scale removing device is supported by a frame body placed on the beam, a pedestal mounted on the frame body and movable in the lateral direction, and tiltable on the pedestal. A support body having a support base portion, a support body tip portion provided on the support base portion so as to be movable forward and backward, and a rotary crushing device for crushing a scale provided at the support body tip portion are provided.

In this scale removing device, the frame body is placed on the beam of the walking beam type heating furnace and moved in the heating furnace by the walking beam transfer function, so that any scale removal work in the furnace can be performed. It is like that.
In addition, since the rotary crushing device is tiltably supported by a frame mounted on the frame body and is provided at the tip of the support body that can advance and retreat in the axial direction, the height position of the rotary crushing device can be adjusted over a wide range. It is possible to efficiently perform the crushing operation according to the thickness of the scale layer deposited in the furnace.

Further, a dust collection hood is attached to the tip of the rotary crushing device described above, and the rear of the dust collection hood is connected to a dust collection hose and further connected to the dust collection device.
Thereby, the structure which can remove the scale and dust which generate | occur | produce during a crushing operation | work outside a furnace simultaneously with a operation | work is employ | adopted.

Japanese Patent Laid-Open No. 2005-97731

  However, in the configuration described in Patent Document 1, the dust collection hose is connected to the rear of the dust collection hood attached to the tip of the rotary crushing device. In such a configuration, an oxide scale having a large specific gravity is used. A very large suction force is required in order to convey a distance of several tens of meters from the furnace bottom to the outside of the furnace. In particular, a high suction force is required in the operation of recovering the oxide scale on the furnace bottom cut by the rotary crushing device.

In addition, in the part where the oxide scale is connected from the rotary crushing device to the dust collection hose in the dust collection hood, the rotation speed of the rotary crushing device is used to efficiently guide the oxide scale with a large specific gravity to the dust collection hose. And the suction wind speed by dust collection must be increased. Further, the flying direction of the scale flying in the rotational tangential direction of the rotary crushing apparatus must be matched as much as possible with the suction direction by dust collection.
Here, by reducing the gap between the inner surface of the dust collection hood and the rotary crushing device as much as possible, the suction air speed can be increased with a small air volume. If the rotational speed of the rotary crushing device is increased to increase the recovery efficiency, the flying direction of the scale and the suction direction will not match, making it impossible to smoothly transfer the oxidized scale from the rotary crushing device to the dust collection hose. . As a result, even if the rotational speed of the rotary crushing device is increased, the scale recovery efficiency becomes a saturated state that does not improve to a predetermined value or more. On the other hand, if the width of the rotary crushing device and the dust collecting hood is increased in order to increase the recovery efficiency, the opening area increases and the suction wind speed decreases. Moreover, the speed component in the suction direction is reduced by narrowing the width direction to guide the dust collecting hose. For this reason, it will be in the saturated state similar to the above.

  As described above, in the configuration described in Patent Document 1, there is a possibility that the crushed oxide scale may not be sufficiently recovered, and a large load is applied to the dust collecting hose and the dust collecting device, so that the stable removal of the oxide scale cannot be performed. There is a fear.

  An object of this invention is to provide the scale removal apparatus which can remove suitably the oxide scale of the furnace bottom in a walking beam type heating furnace in view of the above problems.

The invention according to claim 1 is a scale removing device for removing oxide scale on the bottom of a furnace in a walking beam type heating furnace, wherein the moving device moves on two or more parallel beams in the walking beam type heating furnace. A frame body supported by the moving device; a pedestal mounted on the frame body and movable in a direction substantially orthogonal to the moving direction of the moving device;
A support base that is tiltably supported by the gantry, a support provided with a support tip that is provided so as to be able to advance and retreat on the support base, and a support provided at the support tip. A rotary crushing device that crushes, and the rotary crushing device is provided in a state of covering a rotating body that cuts and scoops up the oxide scale by a plurality of blades provided on an outer periphery and an upper outer side of the rotating body. A recovery hood that collects the oxidized scale scraped up by the rotating body, and a horizontal screw auger that is horizontally disposed inside the recovery hood and laterally feeds the oxidized scale recovered by the recovery hood. When, and a scale conveying device for conveying the oxide scale which has been collected by the horizontal screw auger toward the frame side, said scale transport apparatus, the support tip Scale removing apparatus, characterized in that the conveying screw auger disposed substantially along state.

Invention according to claim 2, in the scale removing device according to claim 1, wherein the scale conveyor device includes a conveyor-side drive for rotationally driving the conveying screw auger, the axis of rotation of the horizontal screw auger A horizontal bevel gear is provided at an end of the oxide scale in the direction of feeding the oxide scale, and an end of the transport scale auger on the introduction side of the oxide scale meshes with the horizontal bevel gear. A conveyance-side bevel gear is provided, and the horizontal screw auger rotates in conjunction with the conveyance screw auger by a rotational driving force from the conveyance-side driving device via the horizontal-side bevel gear and the conveyance-side bevel gear. A scale remover characterized by.

The invention according to claim 3, in the scale removing device according to claim 2, wherein the rotary crushing device via a set of conductive mechanism in which a plurality of gears meshing with each other, for rotating the rotating member rotation A scale removing device comprising a body driving device.

According to a fourth aspect of the present invention, in the scale removing device according to the second aspect , the conveying screw auger and the conveying screw auger via the horizontal side bevel gear and the conveying side bevel gear by the rotational driving force from the conveying side driving device. A scale removing device, wherein both the horizontal screw augers are rotated, and the rotating body is driven to rotate through a set of transmission mechanisms in which a plurality of gears mesh with each other.

The invention described in claim 5, in the scale removing device according to claim 1, wherein the rotary crushing device via a set of conductive mechanism in which a plurality of gears meshing with each other, for rotating the rotating member rotation A scale removing device comprising: a body drive device; and a horizontal drive device that rotationally drives the horizontal screw auger through a set of transmission mechanisms in which a plurality of gears mesh with each other.

Invention according to claim 6, in the scale removing device according to claim 1, wherein the rotary crushing device comprises a rotary member driving device for rotationally driving the rotating body, the rotating body driving device, a plurality A scale removing device characterized in that both the rotating body and the horizontal screw auger are rotationally driven through one or two sets of transmission mechanisms that mesh with each other.

The invention according to claim 7 is the scale removing device according to claim 6 , wherein a horizontal side bevel gear is provided at an end portion of the rotating shaft of the horizontal screw auger on the direction side of feeding the oxidized scale, A transport-side bevel gear that meshes with the horizontal-side bevel gear is provided at an end portion on the introduction side of the oxidized scale in the rotation shaft of the transport screw auger, and with the rotational driving force from the rotating body driving device, Both the rotating body and the horizontal screw auger are rotationally driven through one or two sets of transmission mechanisms, and the transport screw auger is rotated in conjunction with the horizontal bevel gear and the transport side bevel gear. A scale removing device characterized by that.

The invention according to claim 8 is the scale removing device according to any one of claims 1 to 7 , wherein a housing is installed on a discharge side of the oxidized scale in the conveying screw auger, and the oxidized scale is disposed. One end of a suction hose for carrying air is connected to the housing, and an air hole is formed in the housing at a position opposite to the one end connected to the housing of the suction hose. .

The invention according to claim 9 is the scale removing apparatus according to claim 8 ,
A plate-like blade member intersecting with the rotation shaft is provided at an end portion on the discharge side of the oxide scale in the rotation shaft of the transport screw auger,
During the rotation of the transport screw auger, the oxidized scale transported by the transport screw auger collides with the blade member that rotates together with the rotating shaft, and between the one end of the suction hose and the air hole. A scale removing device that is sent to

According to the present invention, when removing the oxide scale deposited on the bottom of the walking beam heating furnace, the beam is moved on the beam by the moving device, and the frame and the support are driven, so In such a part, the height position of the rotary crushing apparatus can be adjusted over a wide range, and the removal operation can be performed efficiently according to the thickness of the scale layer deposited in the furnace.
Then, in the rotary crushing apparatus, the oxide scale at the furnace bottom is cut and scraped by a rotating body, and the scraped oxide scale is collected by a collection hood. Then, the collected oxide scale is laterally fed by a horizontal screw auger so that the scale scale can transport the oxide scale toward the gantry side. Thereby, since the oxide scale after cutting can be mechanically conveyed using a horizontal screw auger, the crushed oxide scale can be suitably recovered and conveyed without increasing the suction speed by the dust collector. For this reason, a large load is not applied to the suction hose and the dust collector, and stable removal of the oxide scale can be performed. Furthermore, even if the rotational speed of the rotating body is increased, if the rotational speed of the horizontal screw auger is increased following this, the oxide scale can be recovered and transported with high efficiency without saturation of the recovery efficiency.
Therefore, according to the scale removing apparatus of the present invention, the oxide scale on the bottom of the walking beam heating furnace can be suitably removed.

(1) 1st Embodiment Below, 1st Embodiment of this invention is described based on drawing. FIG. 2 is a schematic view showing a scale removal system according to the first embodiment of the present invention.

(1-1) Configuration of Scale Removal System In FIG. 2, the scale removal system S uses the scale removal apparatus 1 of the present invention to remove the oxide scale accumulated in the bottom W3 of the walking beam type heating furnace W. Furthermore, the removed oxide scale is conveyed outside the heating furnace W. Such a scale removing system S includes a scale removing device 1, a suction hose 2, a receiver tank 3, a suction side hose 4, a suction device 5, and a scale sluice 6.

  As shown in FIG. 1, the walking beam type heating furnace W includes a plurality of fixed girders W1 and a plurality of moving girders W2 provided so as to be substantially parallel to the vicinity of the fixed girders W1. These fixed girder W1 and moving girder W2 are respectively fixed to the upper ends of a plurality of pillars W4 erected on the furnace bottom W3 (see FIG. 2). In addition, a plurality of skids W5 for moving the rolling material are provided on the upper surfaces of the fixed girder W1 and the movable girder W2 (see FIGS. 3 to 5).

The scale removing device 1 is disposed on the moving beam W2 inside the walking beam heating furnace W. The configuration of the scale removing device 1 will be described in detail later.
The suction hose 2 is a flexible hose, and one end thereof communicates with a suction hose coupling portion 90 described later in the scale removing device 1, and the other end is connected to the lower part of the receiver tank 3.
The receiver tank 3 temporarily stores the oxidized scale supplied from the scale removing device 1 via the suction hose 2. An opening (not shown) is provided in the lower part of the receiver tank 3, and the oxide scale stored in the scale sluice 6 is discharged intermittently or continuously from the opening. The receiver tank 3 normally deposits a predetermined amount of oxide scale on the bottom, and then intermittently cuts and discharges the oxide from the opening. By providing a means that can secure the property and can be cut out quantitatively, it is possible to discharge the oxide scale continuously.
The suction side hose 4 is a hose that allows the upper part of the receiver tank 3 and the suction device 5 to communicate with each other.
The suction device 5 is, for example, a vacuum car having a suction capacity of 60 m ³ / min, and a plurality of vacuum cars may be provided as necessary.
A hose reel (not shown) is disposed between the scale removing device 1 and the receiver tank 3 on the entry side of the heating furnace W and winds and opens the suction hose 2 as necessary. .

  In such a scale removing system S, the oxidized scale collected by the scale removing device 1 is aired to the receiver tank 3 through the suction side hose 4, the receiver tank 3 and the suction hose 2 by air suction of the suction device 5. Transport. Here, the oxide scale transported by air is collected at the bottom of the receiver tank 3 because the suction wind speed due to the air transport is reduced at the bottom of the receiver tank 3 and the specific gravity of the scale is large. Only air is sucked by the suction device 5. Then, the oxidized scale discharged from the receiver tank 3 is transported by the scale sluice 6 and used for recycling or the like.

(1-2) Overall Configuration of Scale Remover 1 Next, the overall configuration of the scale remover 1 will be described based on the drawings. FIG. 3 is a side view schematically showing the scale removing device according to the first embodiment of the present invention, FIG. 4 is a plan view thereof, and FIG. 5 is a front view thereof. In addition, in FIG. 3, the relay member in a support body is abbreviate | omitting illustration.
3 to 5, the scale removing device 1 includes a moving device 10, a frame body 20, a hydraulic unit 30, control valves 40, a stand 50, a hanger winding roller 60, a support body 70, and a rotation. And a crushing device 80.

The moving device 10 moves on two moving beams W2 adjacent to each other in parallel in the walking beam type heating furnace W. In the following, the forward direction of the moving device 10 is referred to as the forward direction, the backward direction of the moving device 10 is referred to as the backward direction, the right direction with respect to the forward direction is referred to as the right direction, and the left direction with respect to the forward direction is referred to as the left direction. I will explain.
Such a moving device 10 includes four wheels 11 (see FIG. 3), a pair of crawlers 12 spanned on the outer periphery of the wheels 11, a pair of connecting members 13, a left and right moving device 14, and a side roller. 15 and a drive device (not shown) such as a hydraulic motor.
Each of the wheels 11 is rotatably supported by four axles (not shown).
In the central part of the crawler 12, a concave groove 121 is formed so as not to get over the skid W5 provided on the moving girder W2 and so as not to deviate from the center (see FIGS. 4 and 5).
The connecting member 13 connects the front and rear axles in the left-right direction.
As a result, the scale removing device 1 can receive the driving force from the driving device and can move on the moving beam W2 in a state where the crawler 12 does not get over the skid W5 and is not off the center. .

  The left and right moving device 14 is attached to the outer vertical frames 24 on both the left and right sides in a pair of front and rear so as to be rotatable downward. With this left / right moving device 14, in the scale removing operation described later, after the scale removing operation between the moving columns W2 in a predetermined row is completed, the scale removing device 1 is moved in the left / right direction at the flat portion near the furnace entrance of the heating furnace. Thus, it is possible to perform a scale removal operation between the moving columns W2 in different columns. The left / right moving device 14 is rotated in the left / right direction during the scale removing operation, and is rotated downward when moving to the moving column W2 in a different row.

  The side rollers 15 are attached to the connecting members 13 on the left and right sides in a pair that can be rotated downward in a pair. With this side roller 15, in the scale removal operation described later, when the side roller 15 is rotated downward and brought close to the side surface of the moving beam W2, if it comes into contact with the moving beam W2, it is more than that. The meandering can be prevented. That is, the side roller 15 is an auxiliary function for preventing the crawler 12 from being removed when the skid W5 is likely to be removed from the concave groove 121 of the crawler 12 and is about to be removed. It is not in contact with the side surface of the beam W2. The side roller 15 is rotated in the left-right direction and retracted when moving to the moving beam W2 in a different row.

As shown in FIG. 4, the frame body 20 is a substantially frame-shaped structure, and is connected to and supported by the moving device 10.
Specifically, the frame body 20 includes a pair of inner frames disposed in parallel with a front-side horizontal frame 21 and a rear-side horizontal frame 22 extending in the left-right direction, and a space in the left-right direction inside the moving device 10. The main frame is formed by the vertical frame 23.
The front horizontal frame 21 and the rear horizontal frame 22 are formed so as to extend greatly in the left-right direction beyond the interval between the adjacent moving beams W2. Therefore, the front horizontal frame 21 and the rear horizontal frame 22 project from the left and right outer sides of the moving device 10 to the left and right, thereby preventing the scale removing device 1 from falling from the moving beam W2. It is possible.

Grooves 211 are formed in the middle positions on the upper and lower surfaces of the front horizontal frame 21 along the left-right direction (see FIGS. 3 and 4). These grooves 211 are adapted to engage with guide projections 511 and 521, which will be described later, of the gantry 50.
A drive screw shaft 212 (see FIG. 4) for moving the mount 50 in the left-right direction is rotatably fixed to both left and right ends of the front horizontal frame 21 in the groove 211 on the upper surface of the front horizontal frame 21. Yes. A drive device 213 (see FIG. 4) that rotates the drive screw shaft 212 is provided at the right end of the front horizontal frame 21.

Further, the frame body 20 has an outer vertical frame 24, an outer horizontal frame 25, an inner horizontal frame 26, an intermediate outer vertical frame 27, and an intermediate frame for reinforcing the skeleton or coupling with the moving device 10. An outer vertical frame 28 is provided.
The outer vertical frames 24 are respectively provided on the left and right end portions of the moving device 10 and are respectively along the front-rear direction. The outer horizontal frame 25 is provided in a pair of front and rear in a state in which the connecting member 13 and the outer vertical frame 24 are connected to each other, and is respectively along the left-right direction. The inner horizontal frame 26 is provided in a pair of front and rear in a state of connecting the moving device 10 and the inner vertical frame 23, and is respectively along the left-right direction. The intermediate outer vertical frame 27 is provided between the outer vertical frame 24 and the connecting member 13 and is along the front-rear direction. The intermediate outer vertical frame 28 is provided between the front and rear inner horizontal frames 26, respectively, along the front-rear direction.

The hydraulic unit 30 is mounted on the frame body 20 and includes a hydraulic pump for supplying hydraulic oil to each hydraulic motor and each cylinder, a hydraulic pump driving motor, and an oil tank (not shown). It is configured.
The control valves 40 are mounted on the frame body 20 and appropriately supply hydraulic oil from the hydraulic unit 30 to each part of the scale removing device 1.

The gantry 50 is mounted on the frame body 20 and is movable in the left-right direction.
Specifically, as shown in FIG. 3, the gantry 50 includes upper and lower members 51 and 52, and a spacing member 53 that fixes the upper and lower members 51 and 52 in the middle in the front-rear direction with a spacing in the vertical direction. The opening part is formed in the front side and the back side.

  The upper and lower members 51 and 52 forming the opening on the rear side of the gantry 50 are provided with guide projections 511 and 521 so as to face each other in the vertical direction. As described above, these guide projections 511 and 521 are arranged in the front horizontal frame. 21 is adapted to engage with the groove 211. Thus, the gantry 50 is mounted on the frame body 20 so as to be movable in the left-right direction. On the other hand, the upper member 51 of the gantry 50 is provided with an engaging piece (not shown) that protrudes downward, and engages with the drive screw shaft 212 of the front horizontal frame 21. As a result, when the drive screw shaft 212 is rotated by the drive device 213, the engagement piece moves along the screw groove of the drive screw shaft 212, and the gantry 50 connected to the engagement piece follows the front horizontal frame 21. And move in the horizontal direction. As described above, the front horizontal frame 21 extends longer in the left-right direction than the interval between the adjacent movement girders W2, so that the scale crushing and removing operations are performed in a wider range by the movement of the gantry 50 in the left-right direction. It is possible.

  As shown in FIG. 3, a hydraulic motor 54 is supported by upper and lower members 51 and 52 in the opening on the front side of the gantry 50. A support member 711 (described later) of the support body 70 is fixed to a rotating shaft (not shown) of the hydraulic motor 54, and the support body 70 is supported so as to be rotatable in the horizontal direction.

  The hanger winding roller 60 is a device that winds and extends a hose hanger (not shown). As shown in FIGS. 3 and 4, the hanger take-up roller 60 has a pair of bearing portions 61 provided on the left and right ends of the rear lateral frame 22, and a shaft support in a rotatable state on the bearing portions 61. And a plurality of take-up drums 63 attached to the take-up shaft 62 and having protrusions (not shown) formed on the outer peripheral surface thereof. The take-up shaft 62 is connected to a rotary shaft (not shown) of a drive device (not shown) of the take-up shaft 62 so as to be intermittently connected, and is configured to be capable of driving rotation and free rotation.

Accordingly, when the scale removing device 1 is retracted, the winding shaft 62 is driven and rotated, and the hose hanger can be wound around the protrusion on the outer periphery of the winding drum 63 by the rotation of the winding drum 63. On the other hand, when the scale removing device 1 moves forward, the winding shaft 62 can be separated from the rotating shaft of the driving device so as to freely rotate, and the hose hanger can be laid on the moving beam W2 by a tensile force from the rear.
In the present embodiment, the hose reel (not shown) is arranged on the entrance side of the heating furnace W as necessary. However, the hose reel may be mounted on the scale removing device 1 if height restrictions allow.

Here, although not shown, the hose hanger is provided with a plurality of rod-shaped members having a total length equal to or greater than the interval between the moving beams W2 adjacent in the left-right direction, and these rod-shaped materials are arranged at predetermined intervals along the moving beam W2. As shown in the figure, it is composed of a wire for connecting the rod members to each other. As a result, the hose hanger is laid on the moving girder W2 as the scale removing device 1 moves, so that the suction hose 2 extending from the outside of the furnace and connected to the scale removing device 1 hangs down on the furnace bottom W3. It becomes possible to prevent this.
In addition, it is preferable to make the intermediate part of the longitudinal direction of the rod-shaped material of a hose hanger into a structure which can rotate with respect to the both ends. Thereby, when the suction hose 2 moves on the hose hanger laid on the moving beam W3, the frictional resistance between the suction hose 2 and the hose hanger is reduced, so that the scale removal device 1 can be smoothly moved. Become.

(1-3) Configuration of Support 70 Next, the configuration of the support 70 will be described with reference to the drawings. FIG. 6 is a plan view showing a schematic configuration of the support and the rotary crushing apparatus, and FIG. 7 is a perspective view thereof. In FIG. 7, the suction hose connecting portion is not shown. FIG. 8 is an arrow view from the X direction schematically showing the A part in FIG. 7.
As shown in FIGS. 3 to 7, the support 70 includes a support base 71 that is tiltably supported by the gantry 50, and a support front end 72 that is provided on the support base 71 so as to freely advance and retract. Yes.

  As shown in FIGS. 3, 6, and 7, the support base 71 includes a support member 711, a pair of connecting plate members 712, a pair of angle adjusting cylinder plates 713, a tilting member 714, and a rotor tilting cylinder 715. And a connecting member 716 and a rotor slide cylinder 717.

  As described above, the support member 711 is a member that is rotatably supported by the gantry 50 in the horizontal direction, and the rotation shaft of the hydraulic motor 54 in the gantry 50 is inserted and fixed at the center of the member. A fixing hole 711A is provided. Further, as shown in FIGS. 3 and 7, a bearing portion 711B that pivotally supports one end portion (left end portion in FIG. 7) of the rotor tilting cylinder 715 is provided below the support member 711.

  The pair of connecting plate members 712 are longitudinal plate-like members provided in a state of facing each other in the horizontal direction, and one end side in the longitudinal direction (left end side in FIG. 7) is fixed to both side portions of the support member 711. ing. A bearing portion 712 </ b> A is provided on the other longitudinal end side (right end side in FIG. 7) and below the pair of connecting plate members 712. Then, in a state in which one end portion of the tilting member 714 is sandwiched between the pair of connecting plate members 712, the bearing portion 712A pivotally supports the one end portion of the tilting member 714 in a rotatable manner.

  The pair of angle adjusting cylinder plate portions 713 are substantially triangular plate-like members provided in a state of facing each other in the horizontal direction, and the other end side in the longitudinal direction of the pair of connecting plate members 712 (the right end side in FIG. 7) and The upper end portions are integrally fixed to each other.

  Here, a ring member 713A is provided between the A portion surrounded by the phantom line in FIG. 7, that is, between the opposing portions of the pair of angle adjusting cylinder plates 713, as shown in FIG. The ring member 713A is held by a pair of connecting plate members 712 such that both ends in the diameter direction can rotate. A slide bar member 723D of a rotor angle adjusting cylinder 723, which will be described later, is inserted into the inner peripheral surface of the ring member 713A. A clamp cylinder 713B is attached and fixed to the outer peripheral surface of the ring member 713A. The clamp cylinder 713B advances and retracts a clamp rod 713C having a tip inserted into the ring member 713A through a through hole (not shown) formed on the outer peripheral surface of the ring member 713A.

As a result, in a state where the slide bar member 723D is inserted into the ring member 713A, the clamp rod 713C is advanced to bring the rod tip into contact with the slide bar member 723D, and the slide member 723D is moved by the ring member 713A. It can be gripped. Therefore, for example, when the slide rod member 723D is gripped by the operation of the clamp cylinder 713B and the rotor tilting cylinder 715 is driven, regardless of the angle of the support base 71, the rotating body 81, the recovery hood 82, and the horizontal It is possible to maintain a predetermined posture of the screw auger 86 or the like (hereinafter appropriately referred to as a rotor).
Further, for example, when driving a rotor slide cylinder 717, which will be described later, the slide rod member 723D can slide on the inner surface of the ring member 713A by retracting the clamping rod 713C and separating the tip of the rod from the slide rod member 723D. Thus, one end side of the rotor angle adjustment cylinder 723 can be moved to an arbitrary position.

  The tilting member 714 is a substantially prismatic member, and as described above, one end portion thereof (left end portion in FIG. 7) can be pivoted up and down to the pair of connecting plate members 712 via the bearing portion 712A. It is supported in a state. Further, below the other end portion (right end portion in FIG. 7) of the tilting member 714, a bearing portion 714A that pivotally supports the other end portion of the rotor tilting cylinder 715 so as to be rotatable in the vertical direction is provided. A connecting member 716 is integrally fixed along one side surface portion of the tilting member 714.

  The rotor tilting cylinder 715 includes a cylinder rod 715A whose tip is pivotally supported by a bearing portion 714A of the tilting member 714, and a cylinder frame 715B that includes the cylinder rod 715A and moves forward and backward. The base end side of the cylinder frame 715B is pivotally supported by the bearing portion 711B of the support member 711 as described above. Thus, when the rotor tilting cylinder 715 expands and contracts, the tilting member 714 can rotate in the vertical direction with the bearing portion 712A as the center of rotation. Therefore, the connecting member 716, the rotor slide cylinder 717, the support tip 72, and the rotary crushing device 80 can be rotated in the vertical direction by the action of the rotor tilting cylinder 715. Can be moved to a position higher than the position of the moving beam W2. For this reason, the scale removal apparatus 1 can be smoothly moved in and out of the furnace.

  As shown in FIG. 6, the connecting member 716 is a substantially rectangular plate member, and as described above, one end (the left end in FIG. 6) is fixed along one side of the tilting member 714. ing. And the other side edge part (right side edge part in FIG. 6) of the connection member 716 is fixed along one side surface part of a cylinder frame 717B (see FIGS. 3 and 6) described later of the rotor slide cylinder 717. As a result, the tilting member 714 and the rotor slide cylinder 717 are integrally connected via the connecting member 716.

  The rotor slide cylinder 717 includes a cylinder rod 717A whose tip is attached to a mounting portion 721B of an auger shaft 721, which will be described later, in the support tip 72, and a cylinder frame 717B that contains the cylinder rod 717A and moves forward and backward. ing. For example, slide members 717C having a substantially C-shaped cross section are attached to both ends of the upper side surface of the cylinder frame 717B. The slide member 717C engages with a rail member 721A of an auger shaft 721, which will be described later, in a slidable state along the axial direction of the auger shaft 721. Thereby, the support body front-end | tip part 72 and the rotary crushing apparatus 80 can be moved forward / backward by expanding / contracting the rotor slide cylinder 717. Therefore, the height of the rotary crushing device 80 from the furnace bottom W3 can be adjusted.

  As shown in FIGS. 3, 6, and 7, the support distal end portion 72 includes an auger shaft 721, a relay member 722, and a rotor angle adjustment cylinder 723.

The auger shaft 721 is a cylindrical member, and a conveyance screw auger 88 described later in the rotary crushing device 80 is rotatably disposed therein. On the outer peripheral surface of the auger shaft 721, for example, a rail member 721A having a substantially T-shaped cross section extending along the axial direction is provided. An attachment portion 721B to which the tip of the cylinder rod 717A of the rotor slide cylinder 717 is attached is provided in the vicinity of the lower end side of the rail member 721A. Accordingly, as described above, the auger shaft 721 can be moved forward and backward along the axial direction of the cylinder frame 717B by the action of the rotor slide cylinder 717.
In addition, the upper end of the auger shaft 721 is closed, and a conveyance side driving device 89 described later in the rotary crushing device 80 is provided outside the upper end (see FIG. 6). Furthermore, the upper end side of the outer peripheral surface of the auger shaft 721 is opened, and a connecting pipe 91 of a suction hose connecting portion 90 described later is connected thereto (see FIG. 11). Thus, the oxide scale that has been transported to the upper end side of the auger shaft 721 can be moved to the suction hose connecting portion 90 by the action of the transport screw auger 88. A relay member 722 is connected to the lower end of the auger shaft 721. As described above, the auger shaft 721 functions as a structure that supports the rotary crushing device 80 and also functions as a transport unit that transports the oxide scale together with the transport screw auger 88.

  As shown in FIG. 6, the relay member 722 is a circular tube member bent in a substantially L shape, and has one open end connected to and fixed to the lower end of the auger shaft 721 as described above. . In addition, the other opening end of the relay member 722 is rotatably connected to an annular member 826, which will be described later, in the rotary crushing device 80 via a bearing or the like (not shown). One end side of a horizontal screw auger 86, which will be described later, and a lower end side of a transport screw auger 88 are inserted into the relay member 722, and the oxidized scale transported from the horizontal screw auger 86 is transferred to the transport screw auger 88. It is to be transferred.

The rotor angle adjustment cylinder 723 includes a cylinder rod 723A, a cylinder frame 723C that includes the cylinder rod 723A and moves forward and backward, and a slide bar member 723D that is coaxially attached to the base end side of the cylinder frame 723C. ing. The tip of the cylinder rod 723A is pivotally supported via a bearing 723B provided on the upper surface of a recovery hood 82 (described later) in the rotary crushing device 80. As a result, the rotor angle adjusting cylinder 723 expands and contracts, so that the angle formed by the recovery hood 82 and the furnace bottom W3 in the rotary crushing device 80 is adjusted. Therefore, since the position of the recovery hood 82 can be finely adjusted by the action of the rotor angle adjustment cylinder 723, the rotary crushing device 80 can perform optimum cutting / adjustment suitable for the undulation of the oxide scale surface deposited on the furnace bottom W3. Recovery operation is possible.
As described above, the slide bar member 723D is inserted into the ring member 713A in the angle adjustment cylinder plate 713, and is appropriately opened and held by the action of the clamp cylinder 713B. Thus, the rotor angle adjustment cylinder 723 can be moved forward and backward along the axial direction of the cylinder frame 717B together with the auger shaft 721, the relay member 722, and the rotary crushing device 80 by the operation of the rotor slide cylinder 717.

(1-4) Configuration of Rotating Crushing Device 80 Next, a specific configuration of the rotating crushing device 80 will be described with reference to the drawings. FIG. 9 is a perspective view showing the external appearance of the rotary crushing device, in which a part of each of the recovery hood, the rotating body driving device, and the transmission mechanism is omitted as appropriate. FIG. 10 is a perspective view showing the appearance of the rotary crushing apparatus from an angle different from that in FIG. 9, and a part of each of the recovery hood, the filter, the rotating body driving device, and the transmission mechanism is omitted as appropriate.

The rotary crushing device 80 is a device that is provided at the support front end 72, crushes the oxidized scale, collects the crushed oxidized scale, and conveys it to the suction hose 2 (see FIG. 2).
As shown in FIGS. 9 and 9, the rotary crushing device 80 includes a rotating body 81, a recovery hood 82, a rotating body driving device 83, a transmission mechanism 84, a filter 85, a horizontal screw auger 86, A scale transfer device 87 (see FIG. 6), a suction hose connecting portion 90 (see FIG. 11), and a cooling device (not shown) are provided.

The rotating body 81 includes a rotating shaft 811 whose axial direction is parallel to the horizontal direction, and a plurality of blades 812 provided on the outer periphery of the rotating shaft 811. One end (right end in FIG. 10) of the rotating shaft 811 is fixed to the inner surface of the collection hood 82 via a bearing 813, and the other end (left end in FIG. 10) is connected to the rotating body driving device 83 via a conduction mechanism 84. ing. As a result, the rotating body 81 is rotated by the rotating body driving device 83, and the oxide scale can be cut and scraped up by the plurality of blades 812. The rotating direction of the rotating body 81 is a direction in which the cutting direction of the blade 812 with respect to the oxide scale on the furnace bottom W3 is substantially parallel to the forward direction of the moving device 10.
A plurality of blades 812 are provided along the extending direction of the rotation shaft 811. Each blade 812 is attached at a different angular position around the rotation shaft 811 and continues when the blade 812 on one end side of the rotation shaft collides with the scale. Thus, the blades 812 are arranged so as to sequentially collide toward the other end side, whereby the oxide scale on the furnace bottom W3 is crushed.

The collection hood 82 is provided in a state of covering the upper outer side of the rotator 81 and collects the oxidized scale scraped up by the rotator 81. Such a recovery hood 82 includes a rotating body cover portion 821 and a horizontal auger cover portion 822 formed integrally with the rotating body cover portion 821.
The rotating body cover portion 821 includes a half-pipe upper surface portion having a diameter larger than the arc drawn by the tip of the rotating blade 812, and side portions extending from both ends of the half-pipe shape toward the axial center. ing. The side portions pivotally support both ends of the rotating shaft 811 of the rotating body 81 so as to be rotatable coaxially with the shaft of the upper surface portion.
The horizontal auger cover portion 822 extends from one end portion (left end portion in FIG. 9) of the rotating body cover portion 821 and substantially covers the outer periphery of the horizontal screw auger 86, and side surfaces that block both ends of the upper surface portion. It consists of parts.

In such a rotating body cover portion 821 and the horizontal auger cover portion 822, a substantially semi-cylindrical rotating body accommodating space 823 that accommodates the rotating body 81 is formed. Inside the rotating body accommodating space 823, the oxidized scale that has been scraped and flew by the blades 812 is guided to the horizontal auger cover part 822 side along the inner peripheral surface of the rotating body cover part 821. ing.
The horizontal auger cover portion 822 forms a substantially columnar horizontal auger storage space 824 in which the horizontal screw auger 86 is stored. In the horizontal auger storage space 824, the induced oxide scale is collected, and the rotation of the horizontal screw auger 86 causes the oxide scale to continuously reach one end side (the left end side in FIG. 10) of the horizontal screw auger 86. It is designed to be transported.

  A recess 825 is provided at one corner of the collection hood 82, and a relay member 722 is disposed in the recess 825. Further, an annular member 826 is attached to a side surface portion of the horizontal auger cover portion 822 on the concave portion 825 side, and the entire collection hood 82 is rotatably supported by the relay member 722 via the annular member 826. It is like that.

  The rotating body drive device 83 drives the rotating body 81 to rotate through the conduction mechanism 84. As shown in FIG. 7, the rotating body driving device 83 includes a motor unit 831 and a fixing member 832 that fixes the motor unit 831 to the collection hood 82. As the motor unit 831, for example, a hydraulic motor driven by hydraulic oil from the control valves 40 can be adopted, but other electric motors may be used. Note that the method for fixing the motor unit 831 to the collection hood 82 is not limited to the fixing member 832 shown in FIG. 7, and any other conventional fixing method can be employed.

  The transmission mechanism 84 includes a set of a plurality of gears 841 that mesh with each other, and a casing 842 (see FIG. 7) that includes the gears 841 in a rotatable state. A rotation shaft (not shown) of the motor unit 831 is connected to one of the plurality of gears 841, and one end portion of the rotation shaft 811 in the rotating body 81 is connected to the other gear 841 of the plurality of gears 841. ing. Accordingly, when the motor unit 831 rotates the rotation shaft, the gears 841 rotate in the casing 842 in conjunction with the rotation shaft, and the rotating body 81 rotates through these gears 841.

As shown in FIG. 9, for example, the filter 85 is formed by bending a vertical grid-like member into a circular shape having a diameter larger than the circular arc drawn by the tip of the rotating blade 812. The filter 85 is attached to the inside of the collection hood 82 at a position that partitions the rotating body accommodation space 823 and the horizontal auger accommodation space 824.
With such a filter 85, among the oxide scales cut and scraped up by the rotating body 81, those having a large size are sieved off, and only the oxide scale having a particle size of a predetermined size or less is left in the horizontal auger accommodation space. It will be collected inside 824. Accordingly, it is possible to prevent clogged large scale oxide parts in the transport line during transport.

The horizontal screw auger 86 is horizontally disposed inside the collection hood 82, that is, inside the horizontal auger storage space 824, and laterally feeds the oxidized scale collected by the collection hood 82.
Specifically, the rotating shaft 861 of the horizontal screw auger 86 is provided in a state parallel to the rotating shaft 811 of the rotating body 81 inside the horizontal auger housing space 824. One end of the rotating shaft 861 is rotatably supported by a bearing 862 provided on one side surface of the horizontal auger cover portion 822.
Further, a horizontal side bevel gear 863 is provided at the other end portion (left end portion in FIG. 10) of the rotary shaft 861 so as to mesh with a conveyance side bevel gear 882 of a conveyance screw auger 88 described later. One end side (the left end side in FIG. 10) of the horizontal screw auger 86 is inserted from the annular member 826 into a gear protection casing 883 (described later) fixed inside the relay member 722. The end is pivotally supported by a bevel gear bearing 883B, which will be described later, fitted and fixed in the gear protection casing 883.

  The scale transport device 87 transports the oxide scale collected by the horizontal screw auger 86 toward the gantry 50 side. Such a scale conveying device 87 includes a conveying screw auger 88 provided substantially along the support front end portion 72 and a motor unit (not shown) that rotationally drives the conveying screw auger 88. Side drive device 89.

Specifically, the rotation shaft 881 of the conveying screw auger 88 is disposed coaxially with the auger shaft 721 inside the auger shaft 721. The upper end side (see FIG. 6) of the rotation shaft 881 is connected to the rotation shaft (not shown) of the transport side driving device 89 provided at the upper end of the auger shaft 721.
As shown in FIG. 10, a conveyance-side bevel gear 882 is provided on the lower end side of the rotating shaft 881, and meshes with the horizontal-side bevel gear 863 in the horizontal screw auger 86 as described above. . The lower end side of the conveying screw auger 88 is inserted into a gear protection casing 883 fixed inside the relay member 722, and the other end portion of the rotating shaft 861 is fitted into the gear protection casing 883. It is rotatably supported by a fixed later-described bevel gear bearing 883A.

  Here, as shown in FIG. 10, the gear protection casing 883 is a circular pipe member bent in a substantially T shape, and a lower end portion in the drawing is fixed inside the relay member 722. The gear protection casing 883 has an open upper end in the figure, and a bevel gear bearing 883A is fitted and fixed thereto. Further, the right end portion of the gear protecting casing 883 in the drawing is opened, and a bevel gear bearing 883B is fitted and fixed therein. Then, as described above, the lower end side of the transport screw auger 88 is inserted from the upper end portion of the gear protection casing 883 in the drawing, and the one end side of the horizontal screw auger 86 from the right end portion of the gear protection casing 883 in the drawing (left end in FIG. 10). ) Is inserted, and the conveyance-side bevel gear 882 and the horizontal-side bevel gear 863 are engaged with each other inside the gear protection casing 883. The other end portion (lower end portion in FIG. 10) of the rotating shaft 861 in the transport screw auger 88 is rotatably supported by a bevel gear bearing 883A, and the other end portion (left end portion in FIG. 10) of the rotating shaft 861 in the horizontal screw auger 86. Is rotatably supported by a bevel gear bearing 883B. As a result, the horizontal screw auger 86 rotates as the conveying screw auger 88 rotates, and the oxide scale collected in the horizontal auger accommodating space 824 can be laterally fed to the horizontal screw auger 86. Furthermore, the oxide scale can be transferred from the horizontal screw auger 86 to the conveying screw auger 88 inside the relay member 722. Further, the gear protecting casing 883 can protect the meshing portions of both bevel gears from the oxidized scale.

  As the motor section in the transport side driving device 89, for example, a hydraulic motor driven by hydraulic oil from the control valves 40 can be adopted, but other electric motors may be used. Also, any conventional fixing method can be adopted as a method for fixing the motor portion to the upper end portion of the auger shaft 721.

  As a result, the transport screw auger 88 rotates by receiving the rotational driving force of the transport side drive device 89, and the horizontal screw bevel gear 882 and the horizontal bevel gear 863 are rotated along with the rotation of the transport screw auger 88. The auger 826 rotates. Therefore, both the transport screw auger 88 and the horizontal screw auger 826 can be rotated only by the rotational driving force of the transport side driving device 89, and the oxide scale on the furnace bottom W3 is collected and directed to the gantry 50 side. Can be transported.

  Further, as shown in FIG. 6, a plate-like blade member 884 is provided at the upper end portion (end portion on the discharge side of the oxidized scale) of the rotating shaft 881 of the conveying screw auger 88 in a state substantially along the axial direction of the rotating shaft 881. It is attached. As a result, when the transport screw auger 88 rotates, the oxidized scale transported by the transport screw auger 88 collides with the blade member 884 that rotates together with the rotary shaft 881, and the interior of the housing 92 (one end of the suction hose 2) described later. Between the air hole 93 and the air hole 93 described later).

Next, a specific configuration of the suction hose connecting portion 90 will be described based on the drawings. FIG. 11 is a side sectional view schematically showing the suction hose connecting portion and the conveying screw auger.
In FIG. 11, the suction hose connecting portion 90 has one end connected to the outside of the upper end of the auger shaft 721 and connected to the inside of the auger shaft 721 and the other end of the connecting tube 91 so that the inside communicates. A housing 92 that communicates with the inside of the pipe 91, an air hole 93 formed at the lower end of the housing 92, and a valve 94 that opens and closes the air hole 93 are provided. One end of the suction hose 2 is connected to the upper end of the housing 92.
As a result, the oxidized scale transported from the transport screw auger 88 to the inside of the housing 92 via the blade member 884 is introduced into the air flow path from the air hole 93 to the suction hose 2 and is walked through the suction hose 2. It is conveyed outside the beam type heating furnace W. The air hole 93 is opened and closed by a valve 94, and the amount of air introduced is appropriately adjusted according to the suction force of the suction hose 2.

  The cooling device is provided, for example, on the front end side (right end side in FIG. 9) of the collection hood 82 and cools the rotating body 81 of the rotary crushing device 80 and the like. As such a cooling device, although not shown, a water supply pipe having a plurality of spray nozzles, a water supply pipe for supplying cooling water to the water supply pipe, and a cooling water tank provided in the frame body 20 A device provided with a pressurizing supply device that pressurizes and supplies the cooling water of the cooling water tank to the water supply pipe can be employed. Thereby, it is possible to cool the rotating body 81 by injecting cooling water from the spray nozzle, and to suppress dust generated when the oxide scale is crushed by the cooling water.

(1-5) Oxide Scale Removal Operation Next, an operation for removing the oxide scale accumulated in the bottom W3 of the walking beam heating furnace W by the scale removal apparatus 1 will be described.

  First, when introducing the scale removing device 1 into the walking beam heating furnace W, the scale removing device 1 raises the support 70 and the rotary crushing device 80 to the same height as the frame body 20 as shown in FIG. Furthermore, the gantry 50 is driven and the support body 70 is bent in a state along the left-right direction. Thereby, when the scale removal apparatus 1 moves, the support body 70 and the rotary crushing apparatus 80 do not become an obstacle to movement. Then, the moving device 10 is driven to move the scale in the heating furnace W to a position where the scale is to be removed, and the scale removing device 1 is disposed on the predetermined moving beam W2.

  Next, the hydraulic motor 54 of the gantry 50 is driven to rotate the support body 70 along the front-rear direction. Then, the driving device 213 of the frame body 20 is driven, and the gantry 50 is moved in the left-right direction so that the state shown in FIGS. Then, the rotor tilt cylinder 715 of the support 70 is driven to tilt the entire support base 71, and the rotor slide cylinder 717 is further driven to bring the rotary crushing device 80 closer to the furnace bottom W3.

  After the rotary crusher 80 reaches the scale surface, the rotary body 81 is driven to rotate to cut the scale. Along with the rotational driving of the rotating body 81, the driving device 213 of the frame body 20 is driven to move the gantry 50 in the left-right direction, and the moving device 10 is advanced. Thereby, the oxide scale accumulated between a pair of adjacent moving girders W2 can be uniformly removed in the front-rear and left-right directions.

The operations of the rotor tilt cylinder 715, the rotor slide cylinder 717, and the rotor angle adjustment cylinder 723 will be described.
First, the optimal attitude of the rotor is adjusted by the rotor angle adjustment cylinder 723. When the rotor tilting cylinder 715 is driven in a state where the slide rod member 723D is gripped by the operation of the clamp cylinder 713B, the posture of the rotor can be maintained regardless of the angle of the support base 71 (to form a parallel link mechanism). ), The recovery efficiency by the rotor can be maintained regardless of the deposition depth of the scale.
Similarly, the height of the rotary crushing device 80 from the furnace bottom W3 can be adjusted by the rotor slide cylinder 717 while maintaining the posture of the rotor.
The height of the rotary crushing device 80 from the furnace bottom W3 can be adjusted by either the rotor tilting cylinder 715 or the rotor slide cylinder 717. Therefore, either one may be provided, but the range of the deposition depth is large. In some cases, by combining the two, stable recovery can be achieved with a compact apparatus. For example, if only the rotor tilting cylinder 715 is used, if the accumulation depth is large, the rotary crushing device 80 is swung forward, and the traveling tends to become unstable. On the other hand, if only the rotor slide cylinder 717 is used, the cylinder length increases and the compactness of the apparatus is lost.

In conjunction with the cutting of the oxide scale by the rotating body 81, the conveyance side drive device 89 is driven to rotate both the horizontal screw auger 86 and the conveyance screw auger 88. At this time, the oxide scale cut and scraped up by the rotating body 81 moves along the inner peripheral surface of the collection hood 82 while flying and is collected in the horizontal auger accommodating space 824. The collected oxide scale is mechanically transported by the horizontal screw auger 86 and transferred to the transport screw auger 88. Further, the transport screw auger 88 mechanically transports the oxide scale upward.
Even if the rotational speed of the rotating body 81 is increased in order to increase the removal efficiency, if the rotational speeds of the horizontal screw auger 86 and the conveying screw auger 88 are increased, the recovery efficiency does not leak and the recovery efficiency is saturated. The cut oxide scale can be transported without any problems.

On the other hand, the suction device 5 is operated as the oxidized scale is conveyed by the horizontal screw auger 86 and the conveying screw auger 88. At this time, the oxide scale transported upward by the transport screw auger 88 collides with the blade member 884 that rotates together with the rotating shaft 881 and is transferred into the housing 92. The oxidized scale is introduced into the air flow path by suction of the suction device 5 from the air hole 93 toward the suction hose 2, and is conveyed to the outside of the walking beam type heating furnace W through the suction hose 2. Is done. In addition, since the air hole 93 is provided, when the horizontal screw auger 86 or the conveying screw auger 88 stops due to biting or the like, it is possible to avoid blockage in the hose due to a rapid decrease in the air conveying flow velocity. .
As described above, the horizontal scale auger 86 and the conveying screw auger 88 mechanically convey an oxide scale having a large specific gravity to the height position of the moving girder W2, and from the height position of the moving girder W2 to the horizontal direction by the suction device 5. It uses different transport capabilities, such as air transport. For this reason, since the suction device 5 can carry the oxide scale by air without using a high suction pressure, the load on the suction device 5 and the suction hose 2 can be small.

  Then, after the descaling operation between the moving columns W2 in the predetermined row is completed, the scale removing device 1 is temporarily retracted to the vicinity of the entrance of the heating furnace W, and the scale is moved by the left and right moving device 14 on the flat portion near the furnace entrance. The removal apparatus 1 is moved between the movement beams W2 to be the next work target, and the scale removal work is repeated again. When the scale removing device 1 moves the moving girder W2 in the front-rear direction, the hanger hanger is wound or stretched by the hanger winding roller 60, and the hose reel (not shown) disposed on the entrance side of the heating furnace W is used. However, the suction hose 2 is wound or stretched.

(1-6) Effects of First Embodiment According to the scale removing device 1 in the first embodiment, the following effects can be obtained.

(1-6-1) The scale removing device 1 removes the oxide scale of the furnace bottom W3 in the walking beam type heating furnace W. The scale removing device 1 includes a moving device 10 that moves on two moving beams W2 arranged in parallel, a frame body 20 supported by the moving device 10, and a frame body 20 that is mounted on the frame body 20 and is movable in the left-right direction. A support 50 including a gantry 50, a support base 71 that is tiltably supported by the gantry 50, a support tip 72 that is provided on the support base 71 so as to advance and retreat, and a support tip 72 and a rotary crushing device 80 for crushing the oxide scale. The rotary crushing device 80 is provided in a state of covering the rotating body 81 that cuts and scrapes the oxide scale by a plurality of blades 812 provided on the outer periphery, and the upper outside of the rotating body 81. A collection hood 82 that collects the raised oxide scale, a horizontal screw auger 86 that is horizontally disposed inside the collection hood 82 and that laterally feeds the oxide scale collected by the collection hood 82, and the horizontal screw auger And a scale transport device 87 for transporting the oxide scale collected at 86 toward the frame 50 side.

Thereby, when removing the oxide scale on the furnace bottom W3 in the walking beam heating furnace W, the moving device 10 moves the beam and drives the gantry 50 and the support body 70, so that an arbitrary one in the furnace can be obtained. In the portion, the height position of the rotary crushing device 80 can be adjusted over a wide range, and the removal operation can be efficiently performed according to the thickness of the scale layer deposited in the furnace.
Then, in the rotary crushing device 80, the rotary scale 81 cuts and scoops up the oxide scale of the furnace bottom W <b> 3, and the collected oxide scale is recovered by the recovery hood 82. Then, the collected oxide scale is laterally fed by the horizontal screw auger 86 so that the scale transport device 87 can transport the oxide scale toward the gantry side. Thus, since the oxide scale after cutting is mechanically conveyed using the horizontal screw auger 86, the crushed oxide scale can be suitably recovered and conveyed without increasing the suction speed by the suction device 5. For this reason, a large load is not applied to the suction hose 2 and the suction device 5, and stable removal of the oxide scale can be performed. Furthermore, even if the rotational speed of the rotating body 81 is increased, if the rotational speed of the horizontal screw auger is increased following this, the oxide scale can be recovered and transported with high efficiency without saturation of the recovery efficiency.
Therefore, the oxide scale of the furnace bottom W3 in the walking beam type heating furnace W can be suitably removed.

(1-6-2) The scale transport device 87 includes a transport screw auger 88 provided substantially along the support front end portion 72.
Thus, an oxide scale having a large specific gravity can be transported from the furnace bottom W3 to the height position of the moving girder W2 by mechanical transport by the transport screw auger 88, not by air transport by the suction device 5. For this reason, an oxide scale can be suitably conveyed outside a furnace, without applying a big load to the suction hose 2 or the suction device 5.

(1-6-3) The scale transport device 87 includes a transport-side drive device 89 that rotationally drives the transport screw auger 88. A horizontal bevel gear 863 is provided at the end of the horizontal screw auger 86 on the rotating shaft 861 in the direction of feeding the oxidized scale, and the end of the oxidized scale introducing side of the rotating shaft 881 of the transport screw auger 88 is provided. Is provided with a conveyance-side bevel gear 882 that meshes with the horizontal-side bevel gear 863. The horizontal screw auger 86 rotates in conjunction with the conveying screw auger 88 by the rotational driving force from the conveying side driving device 89 via the horizontal side bevel gear 863 and the conveying side bevel gear 882.
Thereby, since rotation of the horizontal screw auger 86 and the conveyance screw auger 88 is performed in conjunction, the oxide scale can be conveyed smoothly. Further, the number of members can be reduced as compared with the configuration in which the rotation drive device for the horizontal screw auger 86 is provided, and the simple configuration in which the horizontal side bevel gear 863 and the conveyance side bevel gear 882 are provided. it can. Furthermore, it can contribute to miniaturization of the apparatus.

(1-6-4) The rotary crushing device 80 includes a rotating body driving device 83 that rotationally drives the rotating body 81 via a set of transmission mechanisms 84 in which a plurality of gears 841 mesh with each other.
As a result, the rotational driving force of the rotating body driving device 83 can be reliably transmitted to the rotating body 81 via the plurality of gears 841, so that the scale removal operation can be performed stably. In addition, since the rotary body 81 can be rotated and driven independently by the rotary body drive device 83, the rotational speed of the rotary body 81 can be adjusted according to the situation.

(1-6-5) One end of a suction hose 2 for air-conveying the oxidized scale is connected to the oxide scale discharge side of the transport screw auger 88, that is, the upper end side of the housing 92, and the suction hose 2 An air hole 93 is formed on the lower end side of the housing 92 that faces one end of the housing 92.
As a result, when the horizontal screw auger 86 or the conveying screw auger 88 stops due to biting or the like, blockage in the hose due to a rapid decrease in the air conveying flow velocity can be avoided. The horizontal scale auger 86 and the conveying screw auger 88 mechanically convey an oxide scale having a large specific gravity to the height position of the moving girder W2. From the height position of the moving girder W2, the suction device 5 performs air conveyance in the horizontal direction. It is possible to selectively use the transport capacity. Therefore, the suction device 5 can carry the oxide scale by air without using a high suction pressure, and the load on the suction device 5 and the suction hose 2 can be reduced.

(1-6-6) A plate-like blade member 884 that intersects the rotary shaft 881 is provided at the end of the rotary shaft 881 of the transport screw auger 88 on the discharge side of the oxide scale. When the transport screw auger 88 rotates, the oxidized scale transported by the transport screw auger 88 collides with the blade member 884 that rotates together with the rotary shaft 881 and is sent out into the housing 92.
Thus, with a simple configuration in which the blade member 884 is provided on the rotary shaft 881, switching from mechanical conveyance by the conveyance screw auger 88 to air conveyance by the suction device 5 can be performed reliably. In addition, since the oxide scale is sent out into the housing 92 by utilizing the rotation of the conveying screw auger 88, it is not necessary to provide a large-scale device for the delivery, and the entire device can be made inexpensive. And energy required for driving the apparatus can be saved.

(2) Second Embodiment Next, a second embodiment of the present invention will be described with reference to the drawings. Note that the scale removing device according to the second embodiment is different from the first embodiment shown in FIGS. 1 to 10 only in the configuration of the rotary crushing device 80. That is, in this embodiment, the rotary body, the horizontal screw auger, and the transport screw auger are all rotated by only the rotational drive force of the transport side drive device 89 without providing the rotary body drive device 83. For this reason, about the structure similar to the said 1st Embodiment, the same code | symbol is used and description and illustration are abbreviate | omitted suitably. FIG. 12 is a schematic view showing a rotary crushing apparatus in the second embodiment.

(2-1) Configuration of Rotating Crushing Device 80A As shown in FIG. 12, the rotating crushing device 80A includes a rotating body 81A, a recovery hood 82, a transmission mechanism 84A, a filter 85, a horizontal screw auger 86A, and a scale. A transport device 87, a suction hose connecting portion 90 (see FIG. 11), and a cooling device (not shown) are provided.

  The rotating body 81A includes a rotating shaft 811 and a plurality of blades 812. One end (right end in FIG. 12) of the rotating shaft 811 is rotatably supported by a bearing 813A fixed to the inner surface of the collection hood 82, and a horizontal screw auger from the other end (left end in FIG. 12) via a conduction mechanism 84A. Receives rotational drive force from 86A.

  The conduction mechanism 84A includes a set of a plurality of gears 841A that mesh with each other, and a casing 842A that encloses the gears 841A in a rotatable state. The rotation shaft 861 of the horizontal screw auger 86A is connected to one of the plurality of gears 841A, and the other end of the rotation shaft 811 of the rotating body 81 is connected to the other gear 841A of the plurality of gears 841. Has been. It should be noted that by adjusting the number of teeth of the gear 841A constituting the transmission mechanism 84A, the rotational speed of the rotating body 81A can be set to a high speed, and the rotational speed of the horizontal screw auger 86A can be set to a low speed. Can be adjusted.

  One end portion (left end portion in FIG. 12) of the rotating shaft 861 of the horizontal screw auger 86A is connected to one of the gears 841A as described above. Further, a horizontal side bevel gear 863 is provided at the other end portion (the right end portion in FIG. 12) of the rotating shaft 861, and the other end portion is pivotally supported by a bevel gear bearing 883B, and the horizontal side bevel gear 863 is gear-protected. The casing 883 meshes with the conveyance-side bevel gear 882.

In the operation of the rotary crushing device 80A described above, the rotational driving force of the transport side drive device 89 is transferred to the transport screw auger 88, the transport side bevel gear 882, the horizontal side bevel gear 863, the horizontal screw auger 86A, the transmission mechanism 84A, and the rotating body 81. Communicate. Therefore, the oxidation scale cutting operation by the rotating body 81 and the oxidation scale conveyance operation by the horizontal screw auger 86A and the conveyance screw auger 88 are simultaneously performed only by the rotational driving force of the conveyance side driving device 89.
Note that the overall operation of the scale removing device including the rotary crushing device 80A is substantially the same as the operation shown in (1-5) above, and thus the description thereof is omitted.

(2-2) Effect of Second Embodiment According to the scale removing apparatus of the second embodiment, the above (1-6-1) to (1-6-3), (1- In addition to the effects shown in 6-5) and (1-6-6), the following effects can be obtained.

(2-2-1) The rotational drive force from the transport side drive device 89 rotates the horizontal screw auger 86A via the horizontal bevel gear 863 and the transport side bevel gear 882, and the plurality of gears 841A mesh with each other. The rotating body 81A is rotationally driven through a set of conduction mechanisms 84A.
Thereby, the oxide scale cutting operation by the rotating body 81 and the oxide scale conveyance operation by the horizontal screw auger 86A and the conveyance screw auger 88 can be simultaneously performed only by the rotational driving force of the conveyance side driving device 89. For this reason, it is not necessary to provide the recovery hood 82 with the rotating body driving device 83 (see FIG. 9) for rotating the rotating body 81A. Therefore, the rotating crushing device 80A can be reduced in weight and size, and as a result, the rotating crushing device 80A. The structure of the support body 70 that supports can be reduced in weight and simplified. Further, since the number of members is small, the manufacturing cost of the scale removing device can be reduced.
Further, although the support body 70 is inserted between narrow skids, hoses to the driving device such as a hydraulic hose to the tip of the support body 70 are not necessary, so that there is less concern about interference and operability is improved. The

(3) Third Embodiment Next, a third embodiment of the present invention will be described with reference to the drawings. The scale removing device according to the third embodiment is different from the first embodiment shown in FIGS. 1 to 10 only in the configuration of the rotary crushing device 80. That is, in the present embodiment, a horizontal drive device that newly rotates only the horizontal screw auger is provided without providing the transport-side bevel gear 882 and the horizontal-side bevel gear 863. And each of a rotary body, a horizontal screw auger, and a conveyance screw auger is rotated with a specific drive device. For this reason, about the structure similar to the said 1st Embodiment, the same code | symbol is used and description and illustration are abbreviate | omitted suitably. FIG. 13 is a schematic diagram showing a rotary crushing apparatus in the third embodiment.

(3-1) Configuration of Rotating Crushing Device 80B The rotating crushing device 80B includes a rotating body 81, a recovery hood 82, two sets of transmission mechanisms 84 and 84B, a filter 85, a horizontal screw, as shown in FIG. An auger 86B, a scale transport device 87B, a suction hose connecting portion 90 (see FIG. 11), a horizontal drive device 860, and a cooling device (not shown) are provided.

The conduction mechanism 84 has the same configuration as that of the first embodiment, and transmits the rotational driving force of the rotating body driving device 83 to the rotating body 81.
The conduction mechanism 84B transmits the rotational driving force of the horizontal drive device 860 to the horizontal screw auger 86B. Such a transmission mechanism 84B includes a set of a plurality of gears 841B that mesh with each other and a casing 842B that includes the gears 841B in a rotatable state. The rotation shaft 861B of the horizontal screw auger 86B is connected to one of the plurality of gears 841B, and the rotation shaft (not shown) in the horizontal drive unit 860 is connected to the other gear 841B of the plurality of gears 841B. ing.

  Although a specific configuration is not illustrated, the horizontal drive device 860 includes a motor unit and a fixing member that fixes the motor unit to the collection hood 82 as in the rotation drive device 83 illustrated in FIG. 9. ing. As the motor unit, for example, a hydraulic motor driven by hydraulic oil from the control valves 40 can be employed, but other electric motors may be used. In addition, any conventional fixing method can be adopted as the method for fixing the motor unit to the collection hood 82.

  One end portion (left end portion in FIG. 13) of the rotation shaft 861B of the horizontal screw auger 86B is connected to one of the gears 841B as described above, and the other end portion (right end portion in FIG. 13) of the rotation shaft 861B is connected. The shaft is rotatably supported by a bearing 864 fixed inside the gear protection casing 883.

  The scale transport device 87B includes a transport screw auger 88B and a transport-side drive device 89. The rotation shaft 881B of the conveying screw auger 88B is disposed coaxially with the auger shaft 721 inside the auger shaft 721. The upper end side of the rotation shaft 881B is connected to the rotation shaft (not shown) of the transport side driving device 89 provided at the upper end of the auger shaft 721. Further, the lower end portion of the rotary shaft 881B is pivotally supported in a rotatable state by a bearing 885 fixed inside the gear protecting casing 883.

In the operation of the rotary crushing device 80B described above, the rotational driving force of the transport side drive device 89 is transmitted only to the transport screw auger 88B. Rotational driving force of the horizontal side drive 860, through the transmission mechanism 84 B, and transmits only in the horizontal screw auger 86B. Rotational driving force of the rotary body drive unit 83 B transmits only the rotary body 81 via a transmission mechanism 84. Therefore, the oxide scale cutting operation by the rotating body 81, the oxide scale transport operation by the horizontal screw auger 86B, and the oxide scale transport operation by the transport screw auger 88B can be performed independently of each other.
Note that the overall operation of the scale removing device including the rotary crushing device 80B is substantially the same as the operation shown in (1-5) above, and thus the description thereof is omitted.

(3-2) Effects of Scale Removal Device According to the scale removal device in the third embodiment, the above (1-6-1), (1-6-2), (1-6) In addition to the effects shown in -5) and (1-6-6), the following effects can be obtained.

(3-2-1) The rotary crushing device 80B includes a rotating body driving device 83 that rotates the rotating body 81 and a plurality of gears 841B via a set of transmission mechanisms 84 in which the plurality of gears 841 mesh with each other. A horizontal drive device 860 that rotationally drives the horizontal screw auger 86B through a pair of transmission mechanisms 84B that mesh with each other is provided.
Accordingly, the oxide scale cutting operation by the rotating body 81, the oxide scale transport operation by the horizontal screw auger 86B, and the oxide scale transport operation by the transport screw auger 88B can be performed independently. For this reason, according to a condition, each rotation speed of the rotary body 81, the horizontal screw auger 86B, and the conveyance screw auger 88B can be adjusted.

(4) Fourth Embodiment Next, a fourth embodiment of the present invention will be described based on the drawings. Note that the scale removing device according to the fourth embodiment is different from the third embodiment shown in FIG. 13 only in the configuration of the rotary crushing device 80B. That is, the present embodiment does not include a horizontal drive device that rotationally drives the horizontal screw auger, and rotates both the rotating body and the horizontal screw auger with the rotational drive force of the rotary body drive device 83, thereby transporting the drive device. Only the conveying screw auger is rotated by 89 rotational driving force. For this reason, about the structure similar to the said 3rd Embodiment, the same code | symbol is used and description and illustration are abbreviate | omitted suitably. FIG. 14 is a schematic view showing a rotary crushing apparatus in the fourth embodiment.

(4-1) Configuration of Rotating Crushing Device 80C As shown in FIG. 14, the rotating crushing device 80C includes a rotating body 81C, a recovery hood 82, two sets of transmission mechanisms 84 and 84C, a filter 85, a horizontal screw. An auger 86C, a scale transport device 87C, a suction hose connecting portion 90 (see FIG. 11), and a cooling device (not shown) are provided.

The conduction mechanism 84 has the same configuration as that of the third embodiment, and transmits the rotational driving force of the rotating body driving device 83 to the rotating body 81C.
The conduction mechanism 84C transmits the rotational driving force from the rotating body 81C to the horizontal screw auger 86C. Such a transmission mechanism 84C includes a set of a plurality of gears 841C that mesh with each other, and a casing 842C that includes the gears 841C in a rotatable state. The rotation shaft 861C of the horizontal screw auger 86C is connected to one of the plurality of gears 841C, and the rotation shaft 811C of the rotating body 81C is connected to the other gear 841C of the plurality of gears 841C. It should be noted that by adjusting the number of teeth of the gear 841C constituting the transmission mechanism 84C, the rotational speed of the rotating body 81C can be set to a high speed and the rotational speed of the horizontal screw auger 86C can be set to a low speed. Can be adjusted.

  One end portion (left end portion in FIG. 14) of the rotation shaft 861C of the horizontal screw auger 86C is connected to one of the gears 841C as described above, and the other end portion (right end portion in FIG. 14) of the rotation shaft 861C is connected. The shaft is supported in a rotatable state by a bearing 865 fixed in the gear protecting casing 883.

  The scale transport device 87C includes a transport screw auger 88C and a transport-side drive device 89. The rotating shaft 881C of the conveying screw auger 88C is disposed coaxially with the auger shaft 721 inside the auger shaft 721. The upper end side of the rotation shaft 881C is connected to the rotation shaft (not shown) of the transport side driving device 89 provided at the upper end of the auger shaft 721. The lower end portion of the rotary shaft 881C is pivotally supported by a bearing 886 fixed in the gear protecting casing 883 so as to be rotatable.

In the operation of the rotary crushing device 80C described above, the rotational driving force of the transport side drive device 89 is transmitted only to the transport screw auger 88C. The rotational driving force of the rotator driving device 83 is transmitted in the order of the transmission mechanism 84, the rotator 81C, the transmission mechanism 84C, and the horizontal screw auger 86C. Therefore, the oxide scale cutting operation by the rotating body 81C and the oxide scale transport operation by the horizontal screw auger 86C are performed in conjunction with each other. On the other hand, the transport operation of the oxide scale by the transport screw auger 88C can be performed independently.
Note that the overall operation of the scale removing device including the rotary crushing device 80C is substantially the same as the operation shown in (1-5) above, and thus the description thereof is omitted.

(4-2) Effect of Scale Removal Device According to the scale removal device in the fourth embodiment, the above (1-6-1), (1-6-2), (1-6) In addition to the effects shown in -5) and (1-6-6), the following effects can be obtained.

(4-2-1) The rotary crushing device 80C includes a rotary body drive device 83 that rotationally drives the rotary body 81C. This rotary body drive device is a set of transmission mechanisms in which a plurality of gears 841 mesh with each other. 84 and both of the rotating body 81C and the horizontal screw auger 86C are rotationally driven through a pair of transmission mechanisms 84C in which a plurality of gears 841C mesh with each other.

  Thereby, the cutting operation of the oxide scale by the rotating body 81C and the conveyance operation of the oxide scale by the horizontal screw auger 86C can be simultaneously performed in conjunction with each other. Further, the oxide scale transport operation by the transport screw auger 88C can be performed independently. For this reason, according to a situation, the rotational speed of the conveyance screw auger 88C can be adjusted independently. In addition, since both the rotating body 81C and the horizontal screw auger 86C can be rotated by the rotational driving force of the rotating body driving device 83, the oxide scale can be transported smoothly. Furthermore, since the number of members is small compared to the configuration in which the rotation drive device for the horizontal screw auger 86C is provided, and the transmission mechanism 84, 84C is provided, the device can be manufactured at low cost. Furthermore, it can contribute to miniaturization of the apparatus.

(5) Fifth Embodiment Next, a fifth embodiment of the present invention will be described with reference to the drawings. Note that the scale removing device according to the fifth embodiment is different from the fourth embodiment shown in FIG. 14 only in the configuration of the rotary crushing device 80C. That is, the present embodiment includes the horizontal bevel gear 863 and the transport side bevel gear 882, does not include the transport side drive device 89 that rotationally drives the transport screw auger, and uses only the rotational driving force of the rotary body drive device 83 to rotate the rotating body. All of the horizontal screw auger and the conveying screw auger are rotated. For this reason, about the structure similar to the said 4th Embodiment, the same code | symbol is used and description and illustration are abbreviate | omitted suitably. FIG. 15 is a schematic view showing a rotary crushing apparatus in the fifth embodiment.

(5-1) Configuration of Rotating Crushing Device 80D As shown in FIG. 15, the rotating crushing device 80D includes a rotating body 81D, a recovery hood 82, two sets of transmission mechanisms 84 and 84D, a filter 85, a horizontal screw. An auger 86D, a scale conveying device 87D, a suction hose connecting portion 90 (see FIG. 11), and a cooling device (not shown) are provided.

The conduction mechanism 84 has the same configuration as that of the fourth embodiment, and transmits the rotational driving force of the rotating body driving device 83 to the rotating body 81D.
The conduction mechanism 84D has the same configuration as that of the fourth embodiment, and transmits the rotational driving force from the rotating body 81D to the horizontal screw auger 86D. Such a conduction mechanism 84D includes a set of a plurality of gears 841D that mesh with each other and a casing 842D. The rotation shaft 861D of the horizontal screw auger 86D is connected to one of the plurality of gears 841D, and the rotation shaft 811D of the rotating body 81D is connected to the other gear 841D of the plurality of gears 841D. .
By adjusting the number of teeth of the gear 841D constituting the transmission mechanism 84D, the rotational speed of each part can be arbitrarily set, for example, the rotational speed of the rotating body 81D can be increased and the rotational speed of the horizontal screw auger 86D can be decreased. Can be adjusted.

  One end portion (left end portion in FIG. 15) of the rotation shaft 861D of the horizontal screw auger 86D is connected to one of the gears 841D as described above. Further, a horizontal bevel gear 863 is provided at the other end portion (right end portion in FIG. 15) of the rotation shaft 861D, and the other end portion is rotatably supported by a bevel gear bearing 883B fixed in a gear protection casing 883. It is supported.

  The scale transfer device 87D includes a transfer screw auger 88D. A rotation shaft 881D of the conveying screw auger 88D is disposed coaxially with the auger shaft 721 inside the auger shaft 721. The upper end side of the rotating shaft 881D is pivotally supported in a rotatable state by a bearing (not shown) provided at the upper end of the auger shaft 721. And the lower end side of conveyance screw auger 88D is inserted in the relay member 722 inside, and the conveyance side bevel gear 882 is provided in the other end part of rotating shaft 881D. The other end of the rotary shaft 881D is rotatably supported by a bevel gear bearing 883A fixed in the gear protection casing 883, and the conveyance side bevel gear 882 and the horizontal bevel gear 863 are inside the gear protection casing 883. Is engaged.

In the operation of the rotary crushing device 80D described above, the rotational driving force of the rotary body driving device 83 is the transmission mechanism 84, the rotary body 81D, the transmission mechanism 84D, the horizontal screw auger 86D, the horizontal side bevel gear 863, the conveyance side bevel gear 882, and the conveyance. It transmits to the screw auger 88D in order. Therefore, the oxide scale cutting operation by the rotating body 81D and the oxide scale conveying operation by the horizontal screw auger 86D and the conveying screw auger 88D are simultaneously performed only by the rotational driving force of the rotating body driving device 83.
Note that the overall operation of the scale removing device including the rotary crushing device 80D is substantially the same as the operation shown in (1-5) above, and thus the description thereof is omitted.

(5-2) Effect of Scale Removal Device According to the scale removal device in the fifth embodiment, the above (1-6-1), (1-6-2), (1-6) In addition to the effects shown in -5) and (1-6-6), the following effects can be obtained.

(5-2-1) A horizontal bevel gear 863 is provided at the end of the rotating shaft 861D of the horizontal screw auger 86D on the direction of sending the oxidized scale, and the oxidized scale of the rotating shaft 881D of the conveying screw auger 88D A conveyance-side bevel gear 882 that meshes with the horizontal-side bevel gear 863 is provided at the end on the introduction side. The rotating body driving device 83 rotationally drives both the rotating body 81D and the horizontal screw auger 86D via the two sets of transmission mechanisms 84 and 84D, and further, via the horizontal side bevel gear 863 and the conveyance side bevel gear 882, The conveying screw auger 88D is rotated in conjunction with the rotational driving force from the horizontal screw auger 86D.

  Thus, the oxide scale cutting operation by the rotating body 81D and the oxide scale conveying operation by the horizontal screw auger 86D and the conveying screw auger 88D can be simultaneously performed only by the rotational driving force of the rotating body driving device 83. For this reason, it is not necessary to provide the auger shaft 721 with the conveyance-side drive device 89 (see FIG. 6) that rotationally drives the rotating body 81D. Therefore, the rotary crushing device 80D can be reduced in weight and size, and as a result, the rotary crushing device 80D. The structure of the support body 70 that supports can be reduced in weight and simplified. Further, since the number of members is small, the manufacturing cost of the scale removing device can be reduced.

(6) Modifications of Embodiments The present invention is not limited to the above-described embodiments, but includes modifications and improvements as long as the object of the present invention can be achieved.

  That is, for example, in the above-described embodiment, the scale removing device 1 is moved on the moving beam W2, but may be moved on the fixed beam W1. In addition, the moving device 10 is a crawler type having the crawler 12 or the like, but is not limited thereto, and may be a four-wheeled vehicle type having a large wheel width. Furthermore, although it moves on the two parallel movement digits W2, it is not limited to the two adjacent movement digits W2 as shown in FIGS. 4 and 5, but is arranged in parallel with one movement digit in between. It may be configured to move on a moving digit, or a configuration in which three or more crawlers are provided to move on three or more adjacent moving digits.

  In the embodiment, as shown in FIG. 4, the hydraulic unit 30 and the control valves 40 are arranged in two sets and divided into left and right, and the layout arrangement is made to merge, but they may be combined into one. Moreover, although the hydraulic unit 30 and the control valves 40 are mounted on the scale removing device 1, they may be installed outside the furnace. And although it was set as the structure which supplies each part of the scale removal apparatus 1 by supplying hydraulic fluid with the hydraulic unit 30 and the control valves 40, it is not restricted to this, For example, it is a power cable from the power generation installation installed in the outside of a furnace Electricity may be supplied through the power supply and driven by this. Furthermore, the moving means of the gantry 50 may be a chain instead of the drive screw shaft.

  In the above embodiment, the rotor angle adjustment cylinder 723 includes the slide bar member 723D, and the slide bar member 723D is inserted into and gripped by the ring member 713A in the angle adjustment cylinder plate portion 713. It is not limited. That is, the rotor angle adjustment cylinder may be configured to be pivotally supported by a bearing (not shown) provided on the auger shaft 721 without providing a slide bar member. Even in such a configuration, the angle formed between the recovery hood 82 and the furnace bottom W3 of the rotary crushing device 80 can be adjusted by extending and contracting the rotor angle adjustment cylinder. In addition, by the operation of the rotor slide cylinder 717, together with the auger shaft 721, the relay member 722, and the rotary crushing device 80, the rotor angle adjustment cylinder can be moved forward and backward along the axial direction of the cylinder frame 717B.

  The support 70 may be configured not to be provided with a rotor angle adjustment cylinder. In such a configuration, the rotor angle cannot be adjusted. However, when the scale accumulation depth is relatively small and the tilt angle operating range is small, the rotor angle does not need to be adjusted. be able to.

  In the embodiment, the recess 825 is provided at one corner of the collection hood 82, and the relay member 722 is disposed in the recess 825. However, the present invention is not limited to this. That is, for example, both side surfaces of the collection hood may be flat surfaces not provided with the recesses 825, and the relay member 722 may be rotatably connected to either one of the both side surfaces. Even in such a configuration, the oxide scale can be suitably removed as in the above embodiment.

  In the first embodiment, only one horizontal screw auger is provided. However, as shown in FIG. 16, two horizontal screw augers may be provided. Here, FIG. 16 is a schematic view showing a modification of the rotary crushing apparatus in the first embodiment. In FIG. 16, a rotary crushing device 80E includes a rotating body 81, a recovery hood 82E, a rotating body driving device 83, a transmission mechanism 84, a filter 85, a pair of horizontal screw augers 86E1 and 86E2, and a conveying screw auger 88. And a scale transfer device 87 provided with a transfer-side drive device 89, a suction hose connecting portion 90 (see FIG. 11), and a cooling device (not shown).

The conveying screw auger 88 and the auger shaft 721 are provided at the central position of the collection hood 82E. The pair of horizontal screw augers 86E1 and 86E2 are arranged on the same axis, and horizontal bevel gears 863 are provided at one end portions of the horizontal screw augers 86E1 and 86E2 facing each other on the rotation shaft 861E.
The horizontal side bevel gears 863 mesh with the conveyance side bevel gears 882 of the conveyance screw auger 88 inside the gear protection casing 883E, and bevel gear bearings 883A and 883B fixed inside the gear protection casing 883E. Thus, one end portion of the rotation shaft 881 of the conveying screw auger 88 and the one end portion of the rotation shaft 861E of the pair of horizontal screw augers 86E1 and 86E2 are rotatably supported.
Further, the other end portions of the pair of horizontal screw augers 86E1 and 86E2 on the rotation shaft 861E are pivotally supported by a bearing 862E provided inside the collection hood 82E in a rotatable state. Since the horizontal screw augers 86E1 and 86E2 rotate in opposite directions, the spirals formed in the horizontal screw augers 86E1 and 86E2 are formed to have the same pitch.

Accordingly, the conveyance screw auger 88 and the pair of horizontal screw augers via the conveyance side bevel gear 882 and the horizontal side bevel gears 863 of the pair of horizontal screw augers 86E1 and 86E2 by the rotational driving force of the conveyance side driving device 89. 86E1 and 86E2 rotate in conjunction with each other. At this time, the horizontal screw augers 86E1 and 86E2 rotate in the opposite directions, and the spirals formed on the horizontal screw augers 86E1 and 86E2 have the same pitch, so that the oxide scales are opposed to the horizontal screw augers 86E1 and 86E2. Are gathered to the end portion side, that is, the center, and are transported upward by the transport screw auger 88 here. Therefore, since the position of the transport screw auger 88 is the central position of the collection hood 82E, it is symmetrical and well balanced, and the oxide scale can be collected suitably.
Note that the configuration in which two such horizontal screw augers are provided can be similarly applied to the second and fifth embodiments.

  In the fourth and fifth embodiments, the rotational driving force of the rotating body driving device 83 rotates both the rotating body and the horizontal screw auger via the two pairs of transmission mechanisms 84, 84C or 84D. One set of mechanisms may be used. That is, in a transmission mechanism including a set of a plurality of gears that mesh with each other, one of the plurality of gears is connected to the rotating shaft of the rotating body driving device, and the other end of the rotating body is connected to the other of the plurality of gears. The parts are connected, and one end of the horizontal screw auger is connected. Even in such a configuration, the rotational driving force from the rotating body driving device can be transmitted to both the rotating body and the horizontal screw auger by one set of transmission mechanisms, compared to a configuration in which two sets of transmission mechanisms are provided. The number of members can be reduced. Thereby, the size and weight of the rotating body crusher can be made smaller.

  In the fourth embodiment, both the rotating body and the horizontal screw auger are rotated by the rotational driving force of the rotating body driving device 83 via the two pairs of transmission mechanisms 84 and 84C. However, the present invention is not limited to this. That is, the rotary crushing device is provided with a horizontal drive device instead of the rotary body drive device 83. And it is good also as a structure which rotates both a horizontal screw auger and a rotary body through the 1 or 2 sets of transmission mechanism in which several gears mutually mesh | engage with the rotational drive force of this horizontal side drive device. Even in such a case, substantially the same effect as the effect (4-2) of the fourth embodiment can be obtained.

It is a top view which shows typically the arrangement | sequence of the beam of a walking beam type heating furnace. It is the schematic diagram which showed the scale removal system which concerns on 1st Embodiment of this invention. It is the side view which showed typically the external appearance of the scale removal apparatus which concerns on the said 1st Embodiment. It is the top view which showed typically the external appearance of the scale removal apparatus which concerns on the said 1st Embodiment. It is the front view which showed typically the external appearance of the scale removal apparatus which concerns on the said 1st Embodiment. It is a top view which shows schematic structure of the support body and rotary crushing apparatus in the said 1st Embodiment. It is a perspective view which shows schematic structure of the support body and rotary crushing apparatus in the said 1st Embodiment. It is the arrow line view from the X direction which showed typically the A section in FIG. It is a perspective view which shows the external appearance of the rotary crushing apparatus in the said 1st Embodiment, and has each abbreviate | omitted and shown the collection | recovery hood, the rotary body drive device, and the transmission mechanism. It is a perspective view which shows the external appearance of the rotary crushing apparatus from an angle different from FIG. 9, and has each omitted and shown suitably the collection | recovery hood, the filter, the rotary body drive device, and the transmission mechanism. It is the sectional side view which showed typically the suction hose connection part and the conveyance screw auger in the said 1st Embodiment. It is the schematic diagram which showed the rotary crushing apparatus in 2nd Embodiment of this invention. It is the schematic diagram which showed the rotary crushing apparatus in 3rd Embodiment of this invention. It is the schematic diagram which showed the rotary crushing apparatus in 4th Embodiment of this invention. It is the schematic diagram which showed the rotary crushing apparatus in 5th Embodiment of this invention. It is the schematic diagram which showed the modification of the rotary crushing apparatus in the said 1st Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Scale removal apparatus 2 ... Suction hose 10 ... Moving apparatus 20 ... Frame body 50 ... Base 70 ... Support body 71 ... Support body base 72 ... Support body tip 721 ... Auger shaft 722 ... Relay members 80, 80A, 80B, 80C , 80D, 80E ... rotary crushing device 81, 81A, 81C, 81D ... rotating body 812 ... blade 82, 82E ... collection hood 83 ... rotating body driving device 84, 84A, 84B, 84C, 84D ... conduction mechanism 841, 841A, 841B , 841C, 841D ... Gears 86, 86A, 86B, 86C, 86D ... Horizontal screw auger 86E1, 86E2 ... Horizontal screw auger 860 ... Horizontal drive unit 861, 861B, 861C, 861D, 861E ... Rotating shaft 863 ... Horizontal bevel gear 87 , 87B, 87C, 87D ... Scale conveying devices 88, 88B, 88C 88D ... Conveying screw auger 881, 881B, 881C, 881D ... Rotating shaft 882 ... Conveying side bevel gear 884 ... Blade member 89 ... Conveying side driving device 90 ... Suction hose connecting part 93 ... Air hole W ... Walking beam heating furnace W1 ... Fixed Girder W2 ... Moving girder W3 ... Furnace bottom

Claims (9)

A scale removing device for removing oxide scale on a furnace bottom in a walking beam type heating furnace,
A moving device that moves on two or more parallel beams in the walking beam furnace;
A frame body supported by the moving device;
A pedestal mounted on the frame body and movable in a direction substantially orthogonal to the moving direction of the moving device;
A support base that is tiltably supported by the gantry, and a support that includes a support tip that is provided on the support base so as to freely advance and retract;
A rotary crushing device provided at the tip of the support and crushing the oxide scale;
The rotary crushing device
A rotating body that cuts and scrapes the oxide scale by a plurality of blades provided on the outer periphery;
A recovery hood that is provided in a state of covering the upper outer side of the rotating body, and that collects the oxidized scale scraped up by the rotating body;
A horizontal screw auger that is horizontally disposed inside the collection hood and laterally feeds the oxidized scale collected by the collection hood,
A scale conveying device that conveys the oxidized scale collected by the horizontal screw auger toward the gantry, and the scale conveying device is provided in a state substantially along the tip of the support. A scale remover characterized by being. The scale removal apparatus according to claim 1,
The scale transport device includes a transport-side drive device that rotationally drives the transport screw auger,
A horizontal bevel gear is provided at the end of the horizontal screw auger on the direction side to which the oxidized scale is sent,
A transport-side bevel gear that meshes with the horizontal-side bevel gear is provided at an end portion on the introduction side of the oxide scale in the rotation shaft of the transport screw auger,
The scale removing device, wherein the horizontal screw auger is rotated in conjunction with the conveying screw auger by the rotational driving force from the conveying side driving device via the horizontal bevel gear and the conveying side bevel gear. The scale removal apparatus according to claim 2,
The rotary crushing apparatus includes a rotating body driving device that rotationally drives the rotating body through a set of transmission mechanisms in which a plurality of gears mesh with each other. The scale removal apparatus according to claim 2,
The rotational drive force from the transport side driving device rotates both the transport screw auger and the horizontal screw auger via the horizontal side bevel gear and the transport side bevel gear, and a plurality of gears mesh with each other. A scale removing device, wherein the rotating body is rotationally driven through a pair of conduction mechanisms. The scale removal apparatus according to claim 1,
The rotary crushing device includes a rotating body driving device that rotationally drives the rotating body through a set of transmission mechanisms in which a plurality of gears mesh with each other.
A scale removing device comprising: a horizontal drive device that rotationally drives the horizontal screw auger through a set of transmission mechanisms in which a plurality of gears mesh with each other. The scale removal apparatus according to claim 1,
The rotary crushing device includes a rotary body drive device that rotationally drives the rotary body,
The rotary body drive device is a scale removing device characterized in that both the rotary body and the horizontal screw auger are rotationally driven through one or two sets of transmission mechanisms in which a plurality of gears mesh with each other. The scale removing device according to claim 6, wherein
A horizontal bevel gear is provided at the end of the horizontal screw auger on the direction side to which the oxidized scale is sent,
A transport-side bevel gear that meshes with the horizontal-side bevel gear is provided at an end portion on the introduction side of the oxide scale in the rotation shaft of the transport screw auger,
Both the rotating body and the horizontal screw auger are rotationally driven by the rotational driving force from the rotating body driving device via the one or two sets of transmission mechanisms, and further the horizontal bevel gear and the transport side A scale removing device, wherein the transport screw auger is rotated in conjunction with a bevel gear. In the scale removal apparatus in any one of Claim 1 thru | or 7,
On the discharge side of the oxide scale in the transport screw auger, a housing is installed ,
One end of a suction hose for pneumatically conveying the oxide scale is connected to the housing ,
Scale removing apparatus air holes in the housing and connected to one end portion opposite to the position of the suction hose is characterized in that it is formed in the housing. The scale remover according to claim 8,
A plate-like blade member intersecting with the rotation shaft is provided at an end portion on the discharge side of the oxide scale in the rotation shaft of the transport screw auger,
During the rotation of the transport screw auger, the oxidized scale transported by the transport screw auger collides with the blade member that rotates together with the rotating shaft, and between the one end of the suction hose and the air hole. A scale removing device that is sent to

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