JP4160711B2 - Water channel type crusher - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a water channel-installed type residue crusher that is installed in a water channel such as a sewage channel or a sewer channel, and crushes residue in the water channel.
[0002]
[Prior art]
In a diversion-type sewage relay pump station or the like, a crusher is installed in a sewage channel to crush the slag contained in the sewage. FIG. 7 shows an example of a schematic structure of a conventional residue crusher. As can be seen from this figure, the conventional screen crusher 51 is of a biaxial type, and the two shaft bodies 52 rotate so that the blades 53 formed on the outer periphery thereof mesh with each other with an appropriate gap. It is installed in the water channel S as possible. Then, by rotating the two shaft bodies 52 in opposite directions, for example, the residue is crushed at a portion where the blades 53 are engaged with each other (close to each other) and discharged to the downstream side.
[0003]
[Problems to be solved by the invention]
However, in the conventional slag crusher 51, the crushing part is only a part where the blades 53 and 53 are engaged with each other, that is, a single gap extending in the vertical direction. If it is included, there is a problem that clogging of residue is likely to occur between the blades 53 without being crushed. Once clogging occurs, they accumulate and solidify on the blade 53. As a result, the gap is closed and sewage does not flow downstream, and the water level difference between the upstream side and the downstream side is large. As a result, the sewage may overflow on the upstream side.
[0004]
The present invention was created in order to solve such problems, and can effectively crush the residue to prevent clogging, and the difference in water level between the upstream side and the downstream side is reduced. The purpose of the present invention is to provide a debris crusher that can prevent overflow in the water channel.
[0005]
[Means for Solving the Problems]
As a means for solving the problems, the present invention is installed vertically in a water channel and has a cylindrical cylindrical body having an opening for allowing water and residue to pass therethrough, and a blade is formed on the outer periphery, and the inside of the cylindrical body And an inner rotating body that is rotatably mounted coaxially with the axis of the cylinder body, and the inner periphery of the cylinder body is rotated by a blade formed on the outer periphery of the inner rotating body by rotating the inner rotating body. A debris crusher with a water channel installed to crush the residue between the two was constructed.
Moreover, the blade was formed in the inner periphery of the cylinder body.
In addition, a blade is formed on the outer periphery of the cylinder body, the cylinder body is rotatably disposed, a frame body is installed in the water channel so as to face the blade formed on the outer periphery of the cylinder body, and the cylinder body is rotated. Thus, the residue is crushed between the inner periphery of the frame and the blade formed on the outer periphery of the cylinder body.
Further, the frame body has a cylindrical shape having an opening for allowing water and residue to pass therethrough, and the cylinder body is configured to be removably inserted into the frame body.
Further, the blade formed on the cylindrical body is provided in a blade block body which is provided in a divided manner with respect to the circumferential direction and the longitudinal direction, and each is detachably attached to the cylindrical body.
Moreover, the blade of the inner rotating body was composed of screw blades formed in a spiral shape.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a water channel type debris crusher, FIG. 2 is a cross-sectional plan view thereof, FIG. 3 is a cross-sectional side view thereof, FIG. 4 is an exploded perspective view thereof, and FIG. FIG. 2 is a diagram illustrating the principle operation of a water channel installation type crusher.
[0007]
As shown in FIG. 1, a water channel installation type crusher (hereinafter referred to as a screen crusher) 1 is installed vertically in a water channel S having a rectangular cross section, for example. Of course, the term “vertical placement” as used herein is not limited to a vertically standing state, but also includes a vertically standing state. Referring also to FIG. 4 and the like, the screen residue crusher 1 is installed vertically in the water channel S, and has a cylindrical tube body 3 formed with an opening 2 through which water and residue in the water channel pass, and on the outer periphery. The blade 4 is formed, and an inner rotary body 5 that is rotatably accommodated coaxially with the axial center of the cylindrical body 3 is provided inside the cylindrical body 3, and the inner rotary body 5 is rotated so that the blade By 4, the residue is crushed between the inner periphery of the cylinder body 3.
[0008]
Further, in this embodiment, as shown in FIG. 2, the blade 6 is formed on the inner periphery of the cylindrical body 3, and the blade 4 and the cylindrical body 3 are rotated as described above by rotating the inner rotating body 5. In addition to crushing the residue between the inner periphery, crushing between the blade 4 and the blade 6 is also performed.
[0009]
First, an example of the inner rotating body 5 will be described. As shown in FIG. 4, the inner rotating body 5 includes a shaft 7 made of a steel pipe material and the like, a screw blade 8 and the like. The screw blades 8 are spirally wound around the outer peripheral surface of the shaft 7 at an equal pitch or at an irregular pitch in accordance with the conditions of the water channel and residue. It becomes a member to constitute. A flange 7a is formed at the lower end of the shaft 7, and is inserted into the recess of the bottom lid member 21 of the cylindrical body 3 with a gap that allows rotation, as shown in FIG. On the other hand, a flange 7b is formed at the upper end of the shaft 7, and is attached to the speed reducer 10 by bolt fastening as shown in FIG. Reference numeral 11 denotes a motor that is a rotational drive source of the inner rotator 5, and the speed reducer 10 and the motor 11 are configured to rotate with each other. For example, as shown in FIG. 1, the motor 11 is fastened and fixed by bolts 13 to a bracket 12 that extends over the water channel S from side to side. The bracket 12 is fastened and fixed by bolts 15 to a base 14 such as a square pipe steel material. The pedestal 14 is fixed to the upper part of a frame 25, which will be described later, for example, the upper end of the fitting member 26 by welding or the like. Reference numeral 16 denotes a bearing that rotatably supports the speed reducer 10. As described above, by driving the motor 11, the inner rotating body 5 rotates together with the speed reducer 10.
[0010]
Next, an example of the cylinder body 3 will be described. As shown in FIG. 4, the main body 17 of the cylinder body 3 is a member having a cylindrical shape with no lid and a bottom, and the thick part of the peripheral surface is equally spaced in the circumferential direction as shown in FIG. And a plurality of (six in this embodiment) support columns 17a extending in the vertical direction. As shown in FIG. 3, the lower ends of the column portions 17 a are fastened and fixed to a base 18 that has an annular shape by a plurality of bolts 19. A disk-shaped bottom lid member 21 is fastened and fixed to the lower surface of the base 18 by a plurality of bolts 20.
[0011]
Now, six vertically long openings are formed in the peripheral surface of the cylindrical body 3 by the six support portions 17a provided at intervals, and each opening is also shown in FIG. As shown, a plurality of blade block bodies 22 are attached at intervals in the vertical direction, and as a result, the cylindrical body 3 has a plurality of openings 2 at intervals in the vertical direction and also in the circumferential direction. It will be formed at intervals. In the present embodiment, the blade 6 is formed on the inner periphery of the cylindrical body 3 as described above, but the blade block body 22 is a member that forms the blade 6 as described later.
[0012]
2 to 5, the blade block body 22 is a member having a substantially fan shape in plan view having an inner peripheral surface 22 a and an outer peripheral surface 22 b, and attachment portions 22 c are formed at both ends. The material is stainless steel having excellent wear resistance and corrosion resistance. As shown in FIG. 3, recesses 17b are formed at intervals in the vertical direction on the outer peripheral side of each column portion 17a of the cylinder body 3, and the attachment portions 22c of the blade block bodies 22 are fitted into the recesses 17b. The blade block body 22 is detachably fastened and fixed between the column portions 17a and 17a adjacent to each other by the bolt 23. As shown also in FIG. 2, the curvature radius of the inner peripheral surface 22a of the blade block body 22 (corresponding to the blade 6 described above) is substantially the same as the curvature radius of the inner periphery of the column portion 17a, and the outer peripheral surface 22b (described later). The radius of curvature of the blade 24 is substantially the same as the radius of curvature of the outer periphery of the support column 17a. That is, the blade 6 and the blade 24 of the blade block body 22 are attached so as to be substantially flush with the inner periphery and outer periphery of the support column 17a, respectively.
As described above, a plurality of the blade block bodies 22 are provided in a divided manner with respect to the cylindrical body 3 in the circumferential direction and the vertical direction, and therefore the support column portions 17a and the blade block bodies 22 are arranged in a lattice pattern. The Rukoto.
[0013]
In the above configuration, for example, when the motor 11 is driven to rotate the inner rotating body 5, the water and residue in the water channel S flow from the plurality of openings 2 facing the upstream side of the cylindrical body 3, and the inner rotating body. Between the blade 4 consisting of 5 screw blades 8 and the inner periphery of the column 17a of the cylindrical body 3 and between the blade 4 and the blade 6 of the blade block body 22, It will be discharged | emitted downstream via the some opening part 2 of the cylinder body 3 which was made. The gap dimension P (FIG. 2) between the tip of the screw blade 8 (blade 4) and the inner periphery of the support column 17a and the blade 6 of the blade block body 22 is appropriately determined depending on the properties of the residue, the rotation speed of the motor 11, and the like. To be determined.
[0014]
As described above, the cylindrical cylinder body 3 which is installed vertically in the water channel S and has the opening 2 for allowing water and residue to pass therethrough, and the blade 4 is formed on the outer periphery, and the cylinder is formed inside the cylinder body 3. An inner rotating body 5 that is rotatably arranged coaxially with the axis of the body 3, the inner rotating body 5 is rotated, and the blade 4 is used to rotate the inner periphery of the cylindrical body 3 (the column portion 17 a). If it is configured to crush the residue, the following effects are produced. In the case of a conventional two-shaft crusher, as described above, the portion for crushing the residue (the portion through which water passes) is only a single gap between the shaft blades close to each other. On the other hand, in the case of the present invention, as shown by a dotted arrow in FIG. 6, the part through which water passes is formed as a pair of left and right by the gap between the cylindrical body 3 and the inner rotating body 5, That is, the residue contained in the water is diverted to the left and right, and the degree of clogging of the residue is halved compared to the conventional case. At the same time, the crushing portion of the residue is formed in a pair of left and right, so that the crushing efficiency of the residue is greatly improved. In addition, since the adjacent portion between the blade 4 and the inner periphery of the cylindrical body 3 (the column portion 17a), which is a residue crushing portion, is formed in a plane along the circumferential direction, the conventional biaxial crushing is performed. The crushing space is greatly increased as compared with the crushing site in the machine. Accordingly, the crushing time of the residue is increased, and the residue is more finely crushed. Thus, according to the present invention, since the residue is efficiently and finely crushed, clogging does not occur, and the difference in water level between the upstream side and the downstream side is reduced, thereby preventing overflow on the upstream side. An effect will be produced.
[0015]
Further, if the blade 6 is formed on the inner periphery of the cylinder body 3, the residue crushing portion is further increased, so that the residue is more finely crushed, and the crushing efficiency of the residue is improved. . The blade 6 may be formed in a convex shape or a concave shape on the inner periphery of the cylindrical body 3, or may be formed integrally with the cylindrical body 3.
[0016]
Furthermore, by forming the blade 4 of the inner rotating body 5 from the screw blades 8 formed in a spiral shape, a pressing action is generated in addition to the crushing action of the residue. Further, since the inner rotating body 5 can be manufactured at low cost, an economical slag crusher can be realized. Further, since the inner rotating body 5 is coaxially disposed on the cylinder body 3, as described above, the lower end portion of the inner rotating body 5 is inserted into the concave portion of the bottom lid member 21 of the cylinder body 3. By using the configuration, the inner rotating body 5 can be rotated without using a bearing (underwater bearing), and a simple and economical residue crusher 1 is realized.
[0017]
Now, although the form demonstrated above is a case where only the inner rotary body 5 is rotated, the structure which also rotates the cylinder body 3 is demonstrated below. A blade 24 is formed on the outer periphery of the cylinder body 3, and the cylinder body 3 is rotatably arranged. The blade 24 corresponds to the outer peripheral surface 22b of the blade block body 22 described above. Although the rotational drive source of the cylindrical body 3 is not shown in the drawing, it can be appropriately designed such as a configuration using the motor 11 with a gear interposed.
[0018]
Reference numeral 25 shown in FIG. 4 and the like indicates a frame body installed in the water channel S so as to face the blade 24. As shown in FIG. 4, the frame body 25 is a member that has a pair of openings 25 a that allow water and residue to pass therethrough, and has an open cylindrical shape with an inner diameter that can accommodate the cylindrical body 3. . The cylindrical body 3 is configured to be inserted into and removed from the frame 25 from above. On both sides of the frame body 25, fitting members 26 made of C-type steel are fixed along the vertical direction. On the other hand, as shown in FIG. 2, guide members 27 made of C-type steel material are fixed along the vertical direction on both side walls of the water channel S, and the fitting members 26 are fitted into the guide members 27 from above. As a result, the frame 25 is installed in the water channel S with the opening 25a facing the upstream side and the downstream side, respectively. Reference numeral 28 denotes a watertight seal plate made of a rubber material or the like for waterproofing a gap between the fitting member 26 and the guide member 27. In addition, rectangular guide plates 25b extending to the side walls of the water channel S are fixed to the left and right edges of the opening 25a facing the upstream side. A water-tight seal plate 29 made of a rubber material or the like is attached to the distal end portion of the guide plate 25b and becomes a portion that presses against the side wall of the water channel S. Needless to say, the guide plate 25b is a member for guiding the water flowing from the upstream side to the opening 25a.
[0019]
In the above configuration, for example, when the inner rotator 5 and the cylindrical body 3 are rotated in opposite directions (the rotational speed is faster on the inner rotator 5 side than the cylindrical body 3), the water and residue in the water channel S are framed. It flows into the inside of the residue crusher 1 through the opening 25a of the body 25 and each opening 2 of the rotating cylinder body 3. And like the effect | action at the time of rotating only the internal rotary body 5, between the blade 4 which consists of the screw blade 8 of the internal rotary body 5, and the inner periphery of the support | pillar part 17a of the cylinder body 3, and the blade 4 and The residue is crushed between the blade block 22 and the blade 6 and discharged to the downstream side through the openings 2 of the cylindrical body 3 facing the downstream side. Further, water and residue in the water channel S also flow into the gap between the outer periphery of the cylinder body 3 and the inner periphery of the frame body 25, and as a result, the outer periphery of the cylinder body 3 (the column portion 17 a) and the blade block body 22. The residue is crushed between the blade 24 and the inner periphery of the frame 25. The gap dimension Q (FIG. 2) between the outer periphery of the cylinder body 3 and the blade 24 of the blade block body 22 and the inner periphery of the frame body 25 is appropriately determined depending on the properties of the residue and the rotational speed of the cylinder body 3.
[0020]
As described above, the blade 24 is formed on the outer periphery of the cylinder body 3, the cylinder body 3 is rotatably disposed, and the frame body 25 is installed in the water channel S so as to face the blade 24. By rotating and making the blade 24 crush the residue between the inner periphery of the frame body 25, the crushing portion of the residue increases and the efficiency of crushing the residue is further improved. Of course, a blade may be formed in a convex shape or a concave shape on the inner periphery of the frame body 25, and the crushing efficiency of the residue will be improved.
[0021]
Further, the frame body 25 is a substantially cylindrical member having an opening 25a for allowing water and residue to pass therethrough, and the cylindrical body 3 is detachably mounted on the frame body 25, thereby simplifying the structure. The structure is realized, and the debris crusher 1 can be easily disassembled during repair or maintenance.
[0022]
In addition, by attaching the base 14 to the frame body 25 as described above, that is, by attaching the motor 11 that is the drive source of the inner rotating body 5 to the frame body 25 side instead of the concrete housing side of the water channel S, Similarly, by attaching the drive source of the cylinder body 3 to the frame body 25 side, it becomes possible to attach and detach the residue crusher 1 to the water channel S while maintaining the drive source as it is, for repair and maintenance. This will further improve the work efficiency.
[0023]
Further, as the blade (blade 6 or blade 24) formed on the cylinder body 3, the blade block body 22 is provided in a divided manner with respect to the circumferential direction and the longitudinal direction, and each is detachably attached to the cylinder body 3. Then, it becomes easy to replace when the blade is worn, and only the blade block body 22 with severe blade wear can be replaced locally. it can.
[0024]
Moreover, as an operation mode of the inner rotating body 5 and the cylindrical body 3, they may be rotated in the same direction, and the rotational speeds of the inner rotating body 5 and the cylindrical body 3 are different from each other or rotated at the same rotational speed according to the conditions of the water channel and the residue. You may let them. In addition, the inner rotating body 5 and the cylinder body 3 are respectively rotated around a certain direction, and after a certain period of time, both or one of them is rotated in the opposite direction, and the inner rotating body 5 or the cylinder body 3 is rotated at intervals. The directions may be made different, and the operation modes of the inner rotating body 5 and the cylindrical body 3 can be appropriately selected according to the conditions of the water channel and the residue.
[0025]
As mentioned above, although the suitable embodiment was described about the waterway installation type residue crusher based on this invention, the shape of each structural member, the attachment position, etc. are not restricted to what was described in drawing, A design change is carried out suitably. It is possible.
[0026]
【The invention's effect】
According to the present invention, the following effects can be obtained.
(1) A cylindrical barrel body and an inner rotary body that is coaxially and rotatably accommodated inside the barrel body, and an inner circumference of the barrel body by a blade formed on the outer circumference of the inner rotary body If it is set as the structure which crushes a residue in between, clogging of the residue in a crushing site | part will be eliminated, and the problem of the overflow in the upstream in the water channel S will be eliminated. In addition, since the cylindrical body and the inner rotating body are disposed coaxially, a compact residue crusher is obtained.
(2) By forming the blade on the inner periphery of the cylinder body, the residue crushing portion is further increased, and the residue crushing efficiency is improved.
(3) A blade is formed on the outer periphery of the cylinder body, the cylinder body is rotatably disposed, the frame body is installed in a water channel, and the blade formed on the outer periphery of the cylinder body is spaced from the inner periphery of the frame body. If it is set as the structure which crushes a residue, the crushing part of a residue will increase and the crushing efficiency of a residue will further improve.
(4) By adopting a configuration in which the cylinder body is detachably mounted on the frame body, a simple structure is realized, and the work for disassembling the residue crusher at the time of repair or maintenance becomes easy.
(5) If the blades formed on the cylinder body are divided into the circumferential direction and the longitudinal direction, and each is formed on a blade block body that is detachably attached to the cylinder body, the blades will be worn heavily. Since only the blade block body can be replaced locally, an economical residue crusher can be realized.
(6) By constituting the blade of the inner rotating body from screw blades formed in a spiral shape, a pressing action is produced in addition to the crushing action of the residue. Moreover, since the inner rotating body can be manufactured at a low cost, an economical slag crusher can be realized.
[Brief description of the drawings]
FIG. 1 is a front view of a water channel installation type crusher.
FIG. 2 is a cross-sectional plan view of a water channel installation type residue crusher.
FIG. 3 is a side sectional view of a water channel installation type crusher.
FIG. 4 is an exploded perspective view of a water channel installation type crusher.
FIG. 5 is an exploded perspective view of a cylindrical body.
FIG. 6 is a diagram illustrating the principle operation of a water channel type debris crusher.
FIG. 7 (a) is a plan view showing a schematic structure of a conventional residue crusher, and FIG. 7 (b) is a front view thereof.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Waterway installation type residue crusher 2 Opening part 3 Cylinder body 4 Blade 5 Inner rotary body 6 Blade 8 Screw blade 10 Reduction gear 11 Motor 17a Strut part 22 Blade block body 24 Blade 25 Frame body 25a Opening part

Claims (6)

A cylindrical tube body that is installed vertically in a water channel and has an opening that allows water and residue to pass through;
A blade is formed on the outer periphery, and an inner rotating body that is rotatably accommodated coaxially with the axis of the cylindrical body inside the cylindrical body,
A water channel-installed slag crusher characterized by rotating the inner rotator and crushing the residue between the inner periphery of the cylinder body with a blade formed on the outer periphery of the inner rotator. The water channel-installed type residue crusher according to claim 1, wherein a blade is formed on the inner periphery of the cylinder body. A blade is formed on the outer periphery of the cylinder body, the cylinder body is rotatably disposed,
Install the frame body in the water channel so as to face the blade formed on the outer periphery of the cylindrical body,
3. The water channel installation die according to claim 1, wherein the cylinder body is rotated and the residue is crushed between the inner periphery of the frame body by a blade formed on the outer periphery of the cylinder body. Waste crusher. The frame body is formed in a cylindrical shape having an opening for allowing water and residue to pass therethrough, and the cylindrical body is configured to be detachably mounted on the frame body. Water channel installation type crusher. The blades formed on the cylindrical body are dividedly provided with respect to the circumferential direction and the longitudinal direction, and each blade is formed on a blade block body that is detachably attached to the cylindrical body. 4. A water channel-installed residue crusher according to any one of 4 above. 6. A water channel-installed slag crusher according to claim 1, wherein the blade of the inner rotating body comprises screw blades formed in a spiral shape.

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