JPH11269812A - Asphalt regenerator and asphalt regenerating car with the regenerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an asphalt regenerator, by which a new asphalt mixture can be formed while using asphalt waste materials as a raw material, and an asphalt regenerating car with the regenerator. SOLUTION: A drum 6 horizontally installed on a base frame 3 is rotated and driven by an engine 11, and asphalt waste materials fed into a first treating chamber 19 from a supply port 9 are heated, melted and treated by a burner 14 while being agitated by projections 22 and an angle 23, and a new asphalt mixture is generated. Insufficiently treated lumps are removed by a screen 18 in the new asphalt mixture, and the asphalt mixture is agitated by an agitating blade 24 in a second treating chamber 20, and extruded by a screw blade 25 and discharged from a discharge opening 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an asphalt regenerating apparatus capable of producing a new asphalt mixture using asphalt waste as a raw material, and an asphalt regenerating vehicle having the apparatus.

[0002]

2. Description of the Related Art In the construction of paved roads for repairing water pipes and gas pipes, excavated asphalt waste material is discarded as waste, and new asphalt mixture for road repair is produced in a plant. It was generally transported by truck to the work site.

[0003]

However, in view of the labor and cost involved in transporting such waste materials and asphalt mixture, and the reuse of industrial waste, the excavated asphalt waste materials are reclaimed and paved as they are. It is preferably used for road restoration.

[0004] The present invention has been made in view of such a problem, and an asphalt regenerating apparatus capable of producing a new asphalt mixture using asphalt waste as a raw material, and an asphalt regenerating vehicle having the apparatus. The purpose is to provide.

[0005]

In order to achieve the above object, an asphalt regenerating apparatus according to the present invention comprises a base (for example, a base frame 3 in the embodiment) and a rotation axis substantially parallel to the base. A drum which is rotatably mounted so as to be horizontal, has a supply port for asphalt waste material at one end and a product discharge port at the other end, and has a processing chamber formed therein, and rotationally drives the drum. It comprises a prime mover (for example, the engine 11 in the embodiment) and a burner that blows out a flame from the supply port into the inside of the processing chamber and heats and melts the asphalt waste material supplied to the processing chamber.

According to such a configuration, the asphalt waste supplied from the supply port is heated and melted by the flame from the burner in the processing chamber, and is discharged as a new asphalt mixture from the discharge port. In this way, new asphalt mixture can be obtained by using asphalt waste materials as raw materials,
It is not necessary to carry out asphalt waste materials or bring new asphalt mixture as before, at road construction sites or the like with restoration. Moreover, since the raw material is a lump of asphalt waste material, it is easy to handle. Furthermore, it is economical because the raw material is waste material, and the waste can be reused, which is preferable.

Further, a partition plate having a plurality of communication holes (for example, the screen 18 in the embodiment) is provided in the processing chamber, and the processing chamber is provided with a first processing chamber on the supply port side and a second processing chamber on the discharge port side.
In addition to the processing chamber, the inner walls of the first processing chamber and the second processing chamber are provided with stirring means (for example, the projections 22 in the embodiment,
Angle material 23, stirring blade 24 and screw blade 2
5) is preferably provided. With such a configuration, the asphalt waste material is stirred and melted and regenerated into a new asphalt mixture (processing in the first processing chamber), and then the incompletely processed one is removed (by the partition plate). Process), and after the components are further agitated to equalize the components (process in the second processing chamber) and discharged, a high-quality asphalt mixture can be obtained.

Further, a part of the stirring means in the second processing chamber is a spirally formed blade member (for example, the screw blade 25 in the embodiment), and asphalt waste material in which the blade member is heated and melted by the rotation of the drum. Is pressed to the discharge port, the discharge of the asphalt mixture to the outside of the drum becomes smooth, and the workability is improved.

Further, if a plurality of running wheels (for example, the tire wheels 2 in the embodiment) are provided on the base of the asphalt regenerator to form an asphalt regenerating vehicle, the asphalt regenerating device can be easily moved. If at least one jack (for example, the front jack 32 and the rear jack 33 in the embodiment) is provided on the base and the inclination angle of the axis of rotation of the drum from the horizontal plane can be adjusted, it can be adjusted according to the outside temperature and humidity. The work speed can be improved by optimizing the discharge speed of the asphalt mixture that changes.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. The asphalt regenerating vehicle 1 of the present invention shown in FIGS. 1 to 3 has a base frame 3 on which a pair of tire wheels 2 are disposed on the left and right, and a front drum roller is provided above the base frame 3. The drum 6 is rotatably mounted so that the rotation axis AX is substantially horizontal, supported by the drum 4 and the rear drum roller 5.
The drum 6 includes a cylindrical main drum 7 and a conical tip drum 8 behind the main drum 7.
The right side of FIG. 2 has a supply opening 9 which is a circular opening for supplying asphalt waste material, and a circular opening for discharging the asphalt mixture produced behind the tip drum 8. Is formed.

An engine 11 with a clutch is mounted in front of the drum 6 (to the right in FIG. 1), and outputs a rotational force via a transmission 12. The torque output from the output gear 12a of the transmission 12 is transmitted to the drum 6 via the transmission device 13, whereby the drum 6 is driven to rotate.

Side of engine 11 (right side in FIG. 2)
Is provided with a double burner 14, and the ejection tube 14 a extends to the supply port 9 in front of the drum 6.
A fuel tank 15 is provided below the burner 14, and a blower 13 is provided on the side. Here, the burner 14 is shown in FIG.
(As viewed from the same direction as FIG. 2), the drum 6
Is attached to a position slightly deviated to the side (right side in FIG. 2) from the vertical line B passing through the center of rotation of. This is because the asphalt waste material in the rotating drum 6 is biased upward (to the left in FIG. 4) due to friction with the inner wall of the drum 6, so that the ejection port 14b of the ejection cylinder 14a is moved downward (in FIG. Burner 14 facing the space on the right)
Is provided so that the flame reaches the inside of the drum 6.

Above the burner 14 is provided a hopper 17 opening upward, and a slope 17 a formed below the hopper 17 communicates with the supply port 9 of the drum 6.

The inside of the drum 6 is a processing chamber for melting and stirring the asphalt waste material. This processing chamber further includes a plurality of communication holes (shown in FIG. ) Is divided into a first processing chamber 19 on the front side and a second processing chamber 20 on the rear side.

On the inner wall near the supply port 9 in front of the first processing chamber 19, the supplied asphalt waste material is placed.
A plurality of scraping blades 21 to be scratched inside are provided. A plurality of projections 22 extending toward the center of rotation are formed on the inner wall at the center of the first processing chamber 19, and a plurality of angles 23 extending in the direction of the rotation axis AX are attached (FIG. 4). reference).

On the inner wall of the second processing chamber 20 on the side of the main drum 7, a plurality of stirring blades 24 for stirring the asphalt mixture that has passed through the communication holes provided in the screen 18 are attached. A plurality of screw blades 25 formed in a spiral shape are attached to the inner wall on the tip drum 8 side.

As shown in FIG. 3, an arm support member 26 is attached to the rear of the base frame 3 and extends horizontally rearward.
Are attached by a mounting pin 28 so as to be swingable in a horizontal plane. The arm 27 is formed to extend to the rear of the discharge port 9, from which a slider 29 is provided extending toward the center of the discharge port 9, and a discharge hatch 30 is slidably attached to the slider 29. Have been. The discharge hatch 30 can be locked in a closed state by operating the handle 31 by fitting the discharge hatch 30 to the discharge port 10. The arm 27 is attached to the mounting pin 2
By swinging laterally around the fulcrum 8, the discharge hatch 30 is stored on the side of the base frame 3.

Below the base frame 3, the tire wheels 2
A front jack 32 is provided at the center in front of the tire wheels 2
A rear jack 33 is provided on each of the left and right sides. By adjusting the protrusion amounts of the jacks 32 and 33, the base frame 3 can be raised and lowered to adjust the inclination angle of the rotation axis AX of the drum 6 from the horizontal plane. Further, a tow rod 35 having a metal fitting 34 on a ring is provided at the front end of the base frame 3, and a hook on the vehicle side to be pulled can be hooked on the metal fitting 34 to perform towing travel. The tow bar 35 can be housed in the side of the base frame 3 by swinging in a horizontal direction with a mounting pin 36 provided at a lower portion of the base frame 3 as a fulcrum.

Next, a process of producing a new asphalt mixture by using the asphalt waste material as a raw material by the asphalt regenerating vehicle 1 will be described. After the asphalt regenerating vehicle 1 is transported or towed by a truck or the like and moved to the work site, the front jack 32 and the rear jack 33 are extended downward and the asphalt regenerating vehicle 1 is fixed to the ground so as to be raised slightly forward. . This is because the raw material (asphalt waste material) and the product (asphalt mixture) in the drum 6 being processed flow from the front side to the rear side by their own weight. When the asphalt regenerating vehicle 1 is fixed to the ground, a power source (not shown) is turned on and the burner 14 is operated. The burner 14 has a fuel tank 15
A petroleum fuel pumped up by a pump (not shown) is pressurized from the inside and injected in a mist state, mixed with air supplied from the blower 13, ignited, and discharged from an outlet 14b through an outlet cylinder 14a. 1 A flame is blown into the processing chamber 19. Then, the engine 11 is driven to rotate the drum 6, and when the temperature in the drum 6 reaches a specified temperature, the asphalt waste material is put into the hopper 17. The asphalt waste material input from the hopper 17 is supplied from the supply port 9 into the first processing chamber 19 of the drum 6 through the slope path 17a.

The asphalt waste material supplied to the first processing chamber 19 is scraped into the inside by the scraping blade 21. In the first processing chamber 19, the asphalt waste material is heated and melted by the flame ejected from the burner 14, and is stirred by the projections 22 and the angle members 23, thereby producing a new asphalt mixture in which the gravel component and the asphalt component are mixed. You. This asphalt mixture is passed through a plurality of communication holes provided in the screen 18 to the second processing chamber 20.
However, at this time, those that are insufficiently processed in the first processing chamber 19 (that is, large lump) are removed. The asphalt mixture supplied to the second processing chamber 20 through the communication hole of the screen 18 is agitated by the agitating blades 24 to equalize the components, and then sent to the leading end drum 8, where the screw blades 25 of the leading end drum 8 are screwed. And is discharged out of the drum 6 through the discharge port 10.

As described above, in the asphalt regenerating vehicle 1 of the present invention, a new asphalt mixture can be produced using asphalt waste material as a raw material. There is no need to carry out asphalt waste or bring in new asphalt mix.
Moreover, since the raw material is a lump of asphalt waste material, it is easy to handle. Furthermore, it is economical because the raw material is waste material, and the waste can be reused, which is preferable.

Further, as described above, the asphalt waste material is sufficiently stirred and melted and regenerated into asphalt mixture (processing in the first processing chamber 19), and then the incompletely processed material is removed (screen 18). ), And the mixture is further stirred to equalize the components (second processing chamber 2).
0), so that a high-quality asphalt mixture can be obtained.

The discharge speed of the asphalt mixture discharged from the discharge port 10 varies depending on the outside temperature, humidity, the type of waste material, etc., but the amount of protrusion of the jacks 32 and 33 is adjusted to adjust the rotation axis AX of the drum 6. By adjusting the angle of inclination from the horizontal plane, the discharge speed can be optimized and the working efficiency can be improved.

The direction in which the drum 6 is rotated is not limited to the direction shown in the above embodiment (the direction of the arrow in FIG. 4), and may be the opposite direction. However, at this time, the mounting position of the burner 14 is mounted at a position shifted to the opposite side (left side in FIG. 4) with respect to the vertical line B. Further, the burner 14 does not necessarily have to be a double type, but may be a single type or a triple type or more.

[0025]

As described above, according to the asphalt recycling apparatus according to the present invention, a new asphalt mixture can be obtained by using asphalt waste material as a raw material. In such a case, there is no need to carry out asphalt waste material or carry new asphalt mixture as in the related art. Moreover, since the raw material is a lump of asphalt waste material, it is easy to handle. Furthermore, it is economical because the raw material is waste material, and the waste can be reused, which is preferable.

A partition plate having a plurality of communication holes is provided in the processing chamber to divide the processing chamber into a first processing chamber on the supply port side and a second processing chamber on the discharge port side.
It is preferable to provide a stirring means on the inner wall of the processing chamber. With such a configuration, the asphalt waste material is stirred and melted and regenerated into a new asphalt mixture (first
Incomplete processing is removed (processing in the partition plate), and the components are further agitated to equalize the components (processing in the second processing chamber) and discharged. Asphalt mixture can be obtained. Furthermore, if a part of the stirring means in the second processing chamber is a spirally formed blade member, the asphalt mixture in the second processing chamber is scraped out toward the discharge port, so that the outside of the asphalt mixture drum is removed. The discharge to the tank is smooth, and the workability is improved.

Further, a part of the stirring means in the second processing chamber may be a spirally formed blade member, and the blade member may be configured to push the heated and melted asphalt waste material to the discharge port by rotation of the drum. As a result, the asphalt mixture is smoothly discharged to the outside of the drum, thereby improving workability.

Further, if a plurality of running wheels are provided on the base of the asphalt regenerator to form an asphalt regenerative vehicle,
The movement of the asphalt regeneration device is facilitated. Then, if at least one jack is provided on the base and the inclination angle of the rotation axis of the drum from the horizontal plane can be adjusted, the discharge speed of asphalt mixture that changes according to the outside temperature and humidity etc. will be optimized and work Efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a side view of an asphalt regeneration vehicle according to the present invention.

FIG. 2 is a front view of the asphalt regenerating vehicle of the present invention.

FIG. 3 is a plan view of the asphalt regeneration vehicle of the present invention.

FIG. 4 is a diagram showing a positional relationship between asphalt waste material and a burner ejection port in a rotating drum.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 asphalt regenerating vehicle 2 tire wheel 3 base frame 6 drum 9 supply port 10 discharge port 11 engine 14 burner 18 screen 19 first processing chamber 20 second processing chamber 22 projection 23 angle material 24 stirring blade 25 screw blade 32 front jack 33 Rear jack

Claims (5)

[Claims] 1. A base, which is rotatably mounted on the base so that the axis of rotation is substantially horizontal, has a supply port for asphalt waste material at one end and a product discharge port at the other end, A drum having a processing chamber formed therein, a prime mover that rotationally drives the drum, and a burner that blows a flame from the supply port into the processing chamber to heat and melt asphalt waste material supplied to the processing chamber. An asphalt recycling apparatus comprising: 2. A partition plate having a plurality of communication holes is provided in the processing chamber to divide the processing chamber into a first processing chamber on the supply port side and a second processing chamber on the discharge port side, and the first processing chamber on the discharge port side. The asphalt recycling apparatus according to claim 1, wherein a stirring means is provided on inner walls of the processing chamber and the second processing chamber. 3. A part of the stirring means in the second processing chamber is a spirally formed blade member, and the rotation of the drum pushes the asphalt waste material heated and melted by the blade member to the discharge port. The asphalt regeneration device according to claim 2, wherein: 4. An asphalt regeneration vehicle comprising the asphalt regeneration device according to claim 1, and a plurality of running wheels provided on the base. 5. The asphalt regenerating vehicle according to claim 4, wherein at least one jack is provided on the base so that an inclination angle of a rotation axis of the drum from a horizontal plane can be adjusted.