JP4018800B2 - Heating device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a heating apparatus that can accommodate and heat a larger number of objects to be heated in a heating drum.
[0002]
[Prior art]
Conventionally, a heating device, for example, an asphalt regenerator as an example, opens and closes in front of a front opening of a heating drum that is rotatably supported in an outer peripheral direction and swingable in an axial direction. A door is disposed on the front surface of the casing.
Then, a burner receiving part is formed on the opening and closing door, and after the asphalt pavement pieces and the like separated in the heating drum are accommodated, the burner is attached to the burner receiving part to heat the inside so that it can be used as a paving material again. Asphalt paving pieces are heated.
As shown in FIGS. 8 and 9, this heating drum is set to be almost horizontal during heating, and the opening edge is positioned above the bottom surface of the drum. In order to heat a large amount of the object to be heated, there is no choice but to stack and store in the back of the heating drum so as not to spill from the opening.
In such a case, the object to be heated has a steep slope in the heating drum toward the back, and the raised surface inclined with respect to the direction of the flame radiated from the burner indicated by the arrow is not substantially parallel and is located in the middle position. It will not be possible to efficiently heat with a burner.
This problem is not limited to the asphalt regenerator, and is a problem common to apparatuses that radiate a flame of a burner to a rotating heating drum to heat an object to be heated.
[0003]
[Problems to be solved by the invention]
The present invention has been devised in view of the above circumstances, and its main problem is to cover the lower side of the opening of the heating drum with a cover plate and heat it so that more heat is applied to the heating drum. An object of the present invention is to provide a heating device that can store an object and efficiently heat it.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention provides
In a heating apparatus that heats a heating drum supported so as to be capable of swiveling in the outer circumferential direction with a flame of a burner from an opening of the heating drum,
A substantially semicircular substrate portion that closes the lower side of the opening of the heating drum and separates from the burner during heating, and that extends upward from one side of the substrate portion. We are taking technical measures to consist of one part .
[0005]
In the invention of claim 2,
In a heating apparatus that heats a heating drum supported so as to be capable of swiveling in the outer circumferential direction with a flame of a burner from an opening of the heating drum,
A substantially semicircular substrate portion that closes the lower side of the opening of the heating drum and separates from the burner during heating, and that extends upward from one side of the substrate portion. A lid plate made of one part ;
Technical means is provided that includes support means for supporting the lid plate so as to be displaceable from the position where the lower side of the opening of the heating drum is closed to open the opening.
[0006]
In the invention of claim 3,
The technical means that the said cover plate provides the extended piece part extended along the opening edge of a heating drum in the rotation direction of the heating drum at the time of a heating is taken.
Furthermore, in the invention of claim 4,
The technical means that the support means of a cover plate is provided in the support body which supports a heating drum, or the casing which accommodates a heating drum is taken.
In the invention of claim 5,
The technical means that the support means of the cover plate is an open / close door provided in the casing so as to be openable and closable to close the opening of the heating drum is taken.
Furthermore, in the invention of claim 6,
Technical measures are taken that the heating device consists of an asphalt regenerator.
[0007]
Since the cover plate is configured as described above, the lid plate closes the lower side of the opening when the heating drum is heated. Therefore, the lower side of the opening of the heating drum is always the lid even when the heating drum is swiveling. It will be obstruct | occluded with a board and it can accommodate and heat more to-be-heated objects in a heating drum.
In addition, in the heating drum, the gradient of the object to be heated rising toward the back becomes gentle, and the raised surface inclined with respect to the direction of the flame radiated from the burner becomes substantially parallel to increase the heating efficiency. it can.
And even if the raised posture in the heating drum is biased toward the turning direction due to turning, it is possible to prevent the fall by providing the extending piece on the cover plate.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment in which the heating device of the present invention is applied to an asphalt regenerator will be described below with reference to the drawings.
An asphalt recycling apparatus 1 shown in FIGS. 1 to 6 is a heating drum 2, a casing 3 that houses the heating drum 2, and a front surface of the casing 3 that is provided in front of the opening of the heating drum 2 to form a fence. Opening / closing door 4, burner holder 5 attached to the opening / closing door 4, lid plate 10 attached below the fence 4, burner 6 detachably attached to the burner holder 5, and the fence 4 and driving means 7 for displacing 4.
[0009]
In the present embodiment, the casing 3 has a substantially box shape, and an opening / closing door portion 4 also serving as a fence is formed at the upper front portion.
The open / close door 4 has a mesh shape with a large number of small holes, and has an upper end pivotally attached P1, and is divided into an upper part 4a and a lower part 4b at the center so that it can be bent via a hinge (not shown). They are connected and closed when heated to form a fence, and when discharged, they are opened so as not to prevent discharge from the heating drum.
A lower part is pivotally mounted below the opening / closing door 4 and a lower door 8 is provided which functions as a shooter when discharging the asphalt heated by the heating drum 2 by opening forward and tilting downward when discharging. It has been.
[0010]
Next, since the opening 2a is set in the center with the opening 2a having a smaller diameter than the cross section of the main body of the heating drum 2, when the heating drum is horizontally laid down, the lower side of the opening 4a is the heating drum at the time of lying down. It is arrange | positioned in the upper position from the bottom face.
The structure of the heating drum 2 housed in the casing 3 is not particularly limited, but in this embodiment, the heating drum 2 is rotatable in the outer circumferential direction of the heating drum 2 in the casing 3. And supported so as to be pivotable in the vertical direction.
That is, for example, as shown in FIG. 3, the heating drum 2 is supported by a roller 22 that is pivotally supported by a holding frame 21 that surrounds the outer periphery of the heating drum 2, and protrudes outward from the center of the bottom of the heating drum 2. The shaft 25 is attached to a hook turning drive motor M1 fixed to the holding frame 21, and the heating drum 2 is turned freely by the control of the hook turning drive motor M1.
[0011]
Further, the holding frame 21 is pivotally attached to an outer frame 3a formed integrally with the casing 3 via a pivot shaft 23 protruding left and right. In this embodiment, the arm extends integrally from the holding frame 21. A telescopic end of a vertically moving hydraulic cylinder M2 is pivotally attached to 24.
The base end of the cylinder M2 is pivotally attached to the outer frame 3a or the casing 3.
Accordingly, the heating drum 2 can be pivoted up and down together with the holding frame 21 via the arm 24 by expansion and contraction of the cylinder M2.
These operations can be performed by operating the switches S arranged on the operation panel portion 31 provided on the front side of the casing 3.
[0012]
Instead of the above configuration, a gear or wheel for driving the pivot 23 is coaxially mounted, while a rotary motor is fixed to the outer frame 3a or the casing 3, and a driving motor corresponding to the gear or wheel is attached to the rotary motor. A gear or a wheel may be attached, and a transmission member such as an endless chain or a belt may be interposed so that the heating drum 2 can be tilted in the vertical direction together with the holding frame 21.
In these cases, the tilt angle of the holding frame 21 or the heating drum 2 is not particularly limited, and may be, for example, 180 degrees reversed.
[0013]
In the case of the illustrated example, the open / close door 4 has an opening portion 41 formed in the center at the upper portion 4a, and a pair of window portions 42 formed at the lower portion 4b. A burner holder 5 having a substantially cylindrical shape is attached to 42 so that the burner 6 can be detachably held.
[0014]
In the present embodiment, the opening / closing door portion 4 can be freely opened and closed by an unillustrated opening / closing door portion rotation motor, and this opening / closing door portion rotation motor is one of the switches S arranged on the operation panel 31. Controlled by
Therefore, when the open / close door portion 4 is in a use position where the front opening of the casing 3 is closed, the switch S is turned on, the rotation motor is rotated, and the top wall of the casing 3 is rotated upward from the use position. It can be moved to the storage position on 32 (see FIG. 3).
[0015]
Therefore, in use, as shown in FIG. 5, the burner 6 is inserted into the burner holder 5 and attached, and a gas cylinder conduit (not shown) is connected to the connecting pipe portion 6a of the burner 6 so that the opening of the heating drum 2 is connected. Asphalt can be regenerated and produced by radiating flames toward it.
Then, after the heating by the burner 6 is finished, the burner 6 is removed, the switch S is switched to rotate the opening / closing door portion drive motor, and the upper portion 4a of the opening / closing door portion 4 is rotated upward as shown in FIG. The lower portion 4b butterfly is pivotally displaced to the storage position on the top wall 32 of the casing 3 in the folded posture.
[0016]
Here, a cover plate 10 is attached to the lower side of the opening 2 a of the heating drum 2 via an arm 9 inside the lower portion 4 b of the opening / closing door portion 4.
In the present embodiment, the arm 9 is detachably attached to the lower portion 4b of the open / close door portion 4, so that it can be removed when not in use, but may be integrally formed.
The arm 9 may be integrated and the cover plate 10 may be detachable.
When the lid plate 10 is formed integrally with the lower portion 4b of the open / close door portion 4, the size may be set so that the lid plate 10 enters the viewing window 41 so as not to interfere with the upper portion 4a when folded.
[0017]
Here, the cover plate 10 shown as the first embodiment includes a substantially semicircular substrate portion 10a and an extended piece portion 10b that rises upward from one side of the substrate portion 10a.
The board | substrate part 10a is vacant in the part corresponding to this, and the position of the upper edge part is limited so that it may not block the burner or flame of a burner which opposes.
The shape of the upper edge is set to a straight line in the illustrated example, but is not particularly limited such as a curved shape or a waveform, and may be any size and shape that does not interfere with the burner or the flame of the burner.
[0018]
Next, the extending piece portion 10b has a shape that rises from the turning direction when the turning direction of the heating drum 2 is a fixed direction.
In the illustrated example, the lid plate 10 is set so as to slightly enter the opening 2 a of the heating drum 2, so that the outer peripheral edge of the lid plate 10 is slightly smaller than the inner peripheral edge of the opening 2 a of the heating drum 2. The size is set to a small diameter.
In the above embodiment, the cover plate 10 is used by being fitted into the opening 2a of the heating drum 2. However, the cover plate 10 is in contact with the outside of the opening 2a or at a slightly separated position. You may hold and use.
In that case, the shape of the outer peripheral edge of the cover plate is not particularly limited as long as it does not interfere with other operations.
[0019]
The cover plate 10 ′ shown in the figure is a case where the turning direction during heating of the heating drum 2 can be rotated in both forward and reverse directions, and the extended piece portions 10 b of the cover plate 10 extend in pairs on the left and right ends. ing.
Thereby, even if it is a case where the heating drum 2 turns to the forward or reverse direction, it can be used similarly.
[0020]
Since it consists of the above structure, at the time of use, by closing the door part 4, the cover plate 10 provided inside enters slightly into the opening part 2a of the heating drum 2, and the lower side of the opening part 2a Block.
During heating, even if the asphalt piece is biased in the turning direction by the turning heating drum 2, it is possible to prevent the inside asphalt piece from falling by the cover plate 10 attached to the open / close door portion 4.
In addition, since the inclination of the asphalt pieces stored in the heating drum does not increase, it is possible to mix the burner flame while irradiating the surface of the asphalt pieces evenly during heating, improving thermal efficiency and shortening the processing time. can do.
[0021]
Although the case where the casing is provided in the heating device is illustrated in the above embodiment, the casing may not be provided.
In that case, a structure in which a cover plate is attached to a support member (for example, an arm or the like) of a burner receiving portion provided in a support frame of the heating drum or a support mechanism may be used.
This support member may be composed of an attaching / detaching means that attaches the cover plate to a position that closes the opening of the heating drum at the time of heating and removes the opening to open the opening at the time of discharging. In the above embodiment, the structure is shown in which the cover plate is displaced when the object to be heated is discharged. However, in the present invention, the cover plate is provided at a fixed position, and the heating drum is displaced to discharge the object to be heated. Also good.
In addition, it goes without saying that various design changes can be made without departing from the scope of the present invention.
[0022]
【The invention's effect】
Since the present invention is configured as described above, when the object to be heated is stored in the heating drum, the object to be heated can be stored up to a position above the lower edge of the opening. It can be raised gently toward the back, and can be heated efficiently by the burner, almost parallel to the direction of the flame emitted from the burner.
And even if the object to be heated rises in the turning direction due to the turning of the heating burner, the opening is closed by the cover plate, so there is no possibility that the heated object to be heated falls from the opening.
[Brief description of the drawings]
FIG. 1 is a perspective view of an asphalt recycling apparatus.
FIG. 2 is a longitudinal side view of the asphalt regeneration device.
FIG. 3 is a side view showing a support device for a heating drum.
FIG. 4 is a partial perspective view showing an opening and a cover plate of a heating drum.
FIG. 5 is a side view illustrating a heating state.
FIG. 6 is a front view of the same.
FIG. 7 is a front view showing another embodiment of the lid plate.
FIG. 8 is a side view for explaining a heating state of a conventional apparatus.
FIG. 9 is a front view of the same.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Asphalt reproduction apparatus 2 Heating drum 3 Casing 4 Opening / closing door part 5 Burner receiving part 6 Burner 9 Arm 10 Cover plate

Claims (6)

In a heating device that heats a heating drum supported so as to be able to swivel in an outer peripheral direction, with an open flame of a burner,
A substantially semicircular substrate portion that closes the lower side of the opening of the heating drum and separates from the burner during heating, and that extends upward from one side of the substrate portion. A heating apparatus comprising a cover plate made of one piece . In a heating device that heats a heating drum supported so as to be able to swivel in an outer peripheral direction, with an open flame of a burner,
A substantially semicircular substrate portion that closes the lower side of the opening of the heating drum and separates from the burner during heating, and that extends upward from one side of the substrate portion. A lid plate made of one part ;
A heating device comprising: a supporting means for supporting the lid plate so as to be displaceable from a position where the lower side of the opening of the heating drum is closed to open the opening.   The heating apparatus according to claim 1 or 2, wherein the cover plate is provided with an extending piece extending along the opening edge of the heating drum in the rotation direction of the heating drum during heating.   The heating apparatus according to claim 2 or 3, wherein the cover plate support means is provided on a support for supporting the heating drum or a casing for storing the heating drum.   4. The heating apparatus according to claim 3, wherein the cover plate support means includes an opening / closing door that is provided in the casing so as to be openable and closable and closes the opening of the heating drum.   6. The heating apparatus according to claim 1, wherein the heating apparatus is an asphalt regenerator.

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