JP4859475B2 - Asphalt waste material recycling equipment - Google Patents

Description

  The present invention relates to an asphalt waste material recycling apparatus.

  Many paved roads are paved with asphalt. In addition, asphalt is often peeled off from the road surface and discarded as asphalt waste material (sometimes simply referred to as waste material) during pipe burying work such as gas pipes and water pipes and repair work. However, disposal of waste materials is not preferable in terms of the natural environment, and in recent years, a technology for recycling waste materials has been proposed.

The inventor previously proposed an asphalt waste material recycling apparatus in which a flame guide cylinder that opens at the bottom is provided at the center of the rotating drum, and a flame is introduced into the drum from a burner through the flame guide cylinder (Japanese Patent Application Laid-Open No. 2004-1999) -183341).
According to this apparatus, since hot air can be guide | induced to the opening part side from the bottom part side in a drum, asphalt waste material can be fuse | melted efficiently.
JP 2004-183341 A

However, in the above apparatus, the flame guide cylinder is fixed on the inner bottom surface of the drum on the bottom side of the drum at the center part in the drum, so that the waste material easily falls on the outer periphery of the flame guide cylinder by the rotation of the drum. Therefore, there is a problem that the flame guide tube is easily deformed (shaking out).
Accordingly, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide an asphalt waste material recycling apparatus that can prevent the axial deflection of the flame guide cylinder and the axial deflection of the drum. is there.

An asphalt waste material recycling apparatus according to the present invention has an opening and a bottom, and is provided with a drum rotatably provided around the axis of the support, and a drive provided on the support to rotate the drum. A burner that heats and melts the asphalt waste material charged in the drum, and an axis line that coincides with the axis line of the drum, the back end side is fixed to the inner bottom of the drum, and the front end side is directed to the opening side of the drum An asphalt waste material recycling apparatus having a flame guide tube that extends from the back end and guides the flame from the burner into the drum, and the support portion extends along the outside of the bottom of the drum, A support frame having a side frame connected to the rear frame and extending forward along both sides of the drum, and a front frame connected to the side frame and extending along the opening of the drum; Protrudes outward rotation shaft from the drum bottom center of the drum, the rotating shaft is rotatably supported on the rear frame, the tip portion of the flame guide tube protrudes outward from the opening of the drum And a support roller for rotatably supporting the front end of the flame guide cylinder is provided on the front frame , so that the flame guide cylinder and the drum are both supported .

In addition, a shooter for feeding asphalt waste material into the drum is provided in the front frame.

Further, a side frame rotation shaft is provided on the both side frames, the side frame rotation shaft is rotatably supported on a support leg, and a tilt drive unit that rotates the side frame rotation shaft is provided. The drum is provided to be tiltable in the front-rear direction by rotating the side frame rotation shaft by the driving unit.
The burner is attached to the front frame.
The flame guide tube is formed as a double tube comprising an inner tube and an outer tube, and the outer tube is received by the support roller.
Further, a piece member is interposed between the inner cylinder outer wall and the outer cylinder inner wall, and a necessary gap is formed between the inner cylinder outer wall and the outer cylinder inner wall.

  According to the present invention, since the front end side of the flame guide cylinder is rotatably supported by the support roller, it is possible to prevent the axial deflection of the flame guide cylinder and consequently the axial deflection of the drum. Can be extended.

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
1 is a plan view (partially shown in cross section) of the asphalt waste material recycling apparatus 10, FIG. 2 is a front view, FIG. 3 is a side view (part is shown in cross section), and FIG.

A drum 12 has a barrel shape having an opening 13 and a bottom 14, and is provided on the support 16 so as to be rotatable about an axis. Reference numeral 15 denotes a stirring blade.
The support part 16 is connected to the rear frame 16a extending along the outer side of the bottom of the drum 12, the side frames 16b and 16b and the side frames 16b extending forward along the both sides of the drum 12. The support frame 16 has a front frame 16c that is connected to 16b and extends along the opening 13 of the drum 12 and has a rectangular planar shape. Note that the support portion 16 has a structure in which two upper and lower rectangular frames are connected to each other at appropriate positions by connecting portions in order to obtain strength.

A rotating shaft 18 protrudes outward from the center of the bottom of the drum 12, and the rotating shaft 18 is rotatably supported on a rear frame 16 a of the support portion 16 via a bearing 19. A drive unit (electric motor) 20 is provided on the support unit 16 and rotates the rotary shaft 18. As a result, the drum 12 is driven to rotate about the axis . Thus, the drum 12 has a structure that is cantilevered by the rotating shaft 18.

Next, 22a and 22a are support legs. A pair of support legs 22 a and 22 a are arranged on both the left and right sides of the base 24 so as to face upward.
Side frame rotation shafts 26 are provided on both side frames 16b and 16b of the support portion 16, and the side frame rotation shafts 26 are rotatably supported by bearings 28 provided on the upper portions of the support legs 22a and 22a. ing. One support leg 22a is provided with a tilt drive unit (electric motor) 30 that rotationally drives the side frame rotation shaft 26. When the side frame rotation shaft 26 is rotated by the tilt driving unit 30, the drum 12 is provided to be tiltable in the front-rear direction.

A wheel 32 is provided at the lower end of the four corners of the base 24 so that it can be easily moved.
Reference numeral 34 denotes a cover that covers the outside of the drum 12 other than the opening 13. In FIG. 1, the cover 34 is not shown. On the other hand, in FIGS. 2, 3, and 4, the outer shape of the drum 12 is originally covered with the cover 34 but is not shown.

Next, in FIGS. 1 and 3, reference numeral 36 denotes a flame guide tube. The flame guide cylinder 36 has an axis line that coincides with the axis line of the drum 12, the back end side is fixed to the inner bottom portion of the drum 12, and the tip end side extends toward the opening 13 side of the drum 12.
A burner 37 is attached to the front frame 16 c via the stay 39 and sends a flame into the flame guide tube 36. Thereby, the air in the flame guide cylinder 36 is heated and becomes hot air and is sent into the drum 12 from the back side of the flame guide cylinder 36 to melt the asphalt waste material. Reference numeral 41 denotes a shooter (FIG. 1), which is used when throwing waste material into the drum 12.

  In the present embodiment, the flame guide cylinder 36 has a double cylinder structure of an inner cylinder 36a and an outer cylinder 36b. A plurality of piece members 40 are appropriately disposed between the outer wall of the inner cylinder 36a and the inner wall of the outer cylinder 36b. The inner cylinder 36a is fixed to the outer cylinder 36b via the piece member 40, and an appropriate amount is provided between the two. A space is formed. As described above, the flame guide cylinder 36 has a double cylinder structure, and an appropriate gap is formed between the inner cylinder 36a and the outer cylinder 36b. 36b is not directly heated. As a result, the asphalt waste material is heated and melted by the hot air introduced from the flame guide cylinder 36. It is not preferable that the flame guide cylinder 36 is a simple cylinder because the cylinder is directly heated to a high temperature and asphalt in contact with the flame guide cylinder 36 tends to burn.

  The flame guide cylinder 36 is firmly fixed to the inner bottom surface of the drum 12 via the mounting plate 42 at three positions in the circumferential direction on the far end side. That is, one end side of the mounting plate 42 is fixed to the inner bottom surface of the drum 12 by welding or the like, and the other end side of the mounting plate 42 is fixed to the outer peripheral surface of the outer cylinder 36b of the flame guide tube 36 by welding or the like. There is an appropriate gap between the rear end of the flame guide cylinder 36 and the inner bottom surface of the drum 12, and hot air heated by the flame guided into the flame guide cylinder 36 is passed through the gap between the mounting plates 42 from the drum 12. The asphalt that flows into the drum 12 is melted from the inner side to the opening 13 side.

  Note that the front end side of the flame guide tube 36 is fixed to the drum 12 via the mounting plate 44 at three locations in the circumferential direction. That is, one end side of the mounting plate 44 is fixed to the outer cylinder 36b of the flame guide cylinder 36 by welding or the like, and the other end side is fixed to the opening edge of the drum 12 by welding or the like. Asphalt waste material is thrown into the drum 12 through the gap between the mounting plates 44 in a state where the drum 12 is tilted so that the opening 13 faces upward. Further, after the waste material is melted, the molten asphalt is taken out from the gap between the mounting plates 44 in a state where the drum 12 is tilted so that the opening 13 faces downward.

  A feature of the present embodiment is that the front end side of the flame guide cylinder 36 protrudes outward from the opening 13 of the drum 12, and in this protruding state, the flame guide cylinder 36 is provided on the front frame 16 c of the support portion 16. The support roller 46 is rotatably supported. That is, the outer periphery of the outer cylinder 36b of the flame guide cylinder 36 is rotatably received by the four support rollers 46 provided on the front frame 16c. In the example shown in the figure, two support rollers 46 are disposed on the upper side and two on the lower side. However, it is sufficient that at least the two lower rollers 46 receive the flame guide cylinder 36.

  As described above, the flame guide cylinder 36 is firmly fixed to the inner bottom surface of the drum 12 via the mounting plate 42 on the back side, and is fixed to the opening edge of the drum 12 via the mounting plate 44 on the tip side. On the other hand, the flame guide cylinder 36 itself is supported in a dual-supported manner because it is rotatably received by the support roller 46 provided on the front frame 16c on the front end side protruding outside the drum 12. Thereby, even if the drum 12 is rotated and receives an impact from the waste material that is stirred in, the flame guide tube 36 is not easily deformed, and is particularly suitable without causing shaft shake.

  Further, the support roller 46 not only receives the flame guide tube 36 but also receives the drum 12 through the flame guide tube 36 so that the drum 12 can be rotatably supported. The shaft 12 of the drum 12 itself can also be prevented, which is preferable. Thereby, the lifetime of the rotating shaft 18 of the drum 12 and its bearing 19 is also extended.

  Since the flame guide cylinder 36 has a double structure, the waste material is not burned as described above, and the support cylinder 46 receives the outer cylinder 36b which is not so hot. Although suitable, in the present embodiment, the flame guide cylinder 36 is not necessarily a double structure, and may be a single structure.

  Reference numeral 50 denotes a propane gas cylinder, which is arranged on the base 24 and connected to the burner 37 via a pipe 51. Reference numeral 52 denotes a heating stove for melting new asphalt instead of waste material. An appropriate amount of this new melted asphalt is mixed with the melted asphalt and supplied for road paving and the like. It is.

  As described above, in the present embodiment, since the front end side of the flame guide cylinder 36 is rotatably supported by the support roller 46, the axial deflection of the flame guide cylinder 36 can be prevented, and hence the axial runout of the drum 12 can also be prevented. It is possible to extend the life of these bearings and the like.

  In the above description, the gist of the invention is that the flame guide cylinder is received by the support roller. However, if the flame guide cylinder 36 has a double structure, the support roller 46 is not necessarily required. To do.

It is a top view (partial cross section) of an asphalt waste material recycling apparatus. It is a front view of an asphalt waste material reproduction apparatus. It is a side view (partial cross section) of the asphalt waste material recycling apparatus. It is a rear view of an asphalt waste material reproduction | regeneration apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Asphalt waste material reproduction apparatus 12 Drum 13 Opening part 14 Bottom part 15 Stirring blade 16 Support part 16a Rear part frame 16b Side part frame 16c Front part frame 18 Rotating shaft 19 Bearing 20 Drive part 22a Support leg 24 Base 26 Side part frame rotating shaft 28 Bearing 30 Tilting drive part 34 Cover 36 Flame guide cylinder 36a Inner cylinder 36b Outer cylinder 37 Burner 39 Stay 40 Frame member 41 Shuter 42 Mounting plate 44 Mounting plate 46 Support roller 50 Propane gas cylinder 51 Piping 52 Heating stove

Claims (6)

A drum having an opening and a bottom, and provided in a support portion so as to be rotatable about an axis, a drive portion provided in the support portion for driving the drum to rotate, and asphalt waste material put into the drum. The burner that heats and melts, and the axis is aligned with the axis of the drum, the inner end of the drum is fixed to the inner end, the distal end extends toward the opening of the drum, and the inner end opens. In the asphalt waste material recycling apparatus having a flame guide tube for guiding the flame from the burner into the drum,
The support portion is connected to the rear frame that extends along the outer side of the bottom of the drum, the side frame that is connected to the rear frame, extends forward along the both sides of the drum, and the side frame. A support frame having a front frame extending along the opening of
A rotating shaft of the drum projects outward from the center of the bottom of the drum, and the rotating shaft is rotatably supported by the rear frame;
The front end portion of the flame guide tube is provided to protrude outward from the opening of the drum, and the front frame is provided with a support roller for rotatably supporting the front end portion of the flame guide tube , An asphalt waste material recycling apparatus, wherein the flame guide cylinder and the drum are both supported . The asphalt waste material recycling apparatus according to claim 1, wherein a shooter for charging asphalt waste material into the drum is provided in the front frame. Side frame rotation shafts are provided on the both side frames,
The side frame rotation shaft is rotatably supported by the support leg,
A tilt drive unit for rotating the side frame rotation shaft is provided;
The asphalt waste material recycling apparatus according to claim 1 or 2 , wherein the drum is provided such that the drum can be tilted in the front-rear direction when the side frame rotation shaft is rotated by the tilt driving unit. The asphalt waste material recycling apparatus according to claim 1, 2 or 3, wherein the burner is attached to the front frame. The asphalt waste material according to any one of claims 1 to 4 , wherein the flame guide cylinder is formed in a double cylinder including an inner cylinder and an outer cylinder, and the outer cylinder is received by the support roller. Playback device. 6. The asphalt waste material recycling according to claim 5 , wherein a piece member is interposed between the inner cylinder outer wall and the outer cylinder inner wall, and a necessary gap is formed between the inner cylinder outer wall and the outer cylinder inner wall. apparatus.

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