JP2002173907A - Waste asphalt regenerating method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regenerate waste asphalt torn off from a road surface of a pavement as an asphalt admixture having a quality equal to an asphalt admixture manufactured by an asphalt plant. SOLUTION: This device has a rotatable and tiltable agitating drum 20 having an opening 20A on the upper end, and a hot blast generator 60 oppositely arranged in the opening 20A of this agitating drum 20. The waste asphalt is inputted by a prescribed quantity in the agitating drum 20, the agitating drum 20 is rotated at a prescribed speed, a prescribed temperature hot blast generated by the hot blast generator 60 is injected into the agitating drum 20 from the opening 20A of the agitating drum 20, and while heating the waste asphalt by the hot blast, the waste asphalt is crushed and agitated by rotation of the agitating drum 20, and an asphalt component is melted by this continuous heating and crushing-agitating operation for a prescribed time to generate the asphalt admixture of a free state of an aggregate of a crushed stone.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for reclaiming asphalt waste material capable of regenerating asphalt waste material peeled off from a pavement road or the like to the same quality as asphalt mixture material produced in an asphalt plant. It is about.

[0002]

2. Description of the Related Art Asphalt generated in the process of refining petroleum is effectively used in various fields such as waterproofing and road construction.
In particular, it is indispensable for finishing pavement on roads. BACKGROUND ART Asphalt mixture used for road pavement finishing is generally produced by heating and mixing asphalt, which is a residue at the time of oil refining, crushed stone and sand. For example, when asphalt paving a road using such an asphalt mixture, a heated asphalt mixture is spread to a predetermined thickness on a base layer hardened by compaction, and then compacted by a madical roller or the like. It is performed by rolling and finishing by means.

[0003]

By the way, in the repair work of roads, a method is generally adopted in which asphalt waste material peeled off from a pavement road surface or the like is disposed as an industrial waste in a designated landfill. It is. However, in recent years, the problem of destruction of the natural environment and the difficulty of securing landfill sites have reduced the number of places where asphalt waste can be easily dumped. There are many problems. Therefore, there is a demand to recycle asphalt waste materials as asphalt mixture materials for road pavement and the like and to reuse them.

[0004] It is an object of the present invention to easily and inexpensively recycle asphalt waste material having the same quality as asphalt mixture material produced in an asphalt plant from asphalt waste material peeled off from a pavement road surface or the like. It is an object of the present invention to provide a method and an apparatus for reclaiming asphalt waste material that can be reused for paving finishing and the like.

[0005]

According to the first aspect of the present invention, there is provided a method for reclaiming asphalt waste material in a reusable manner, comprising a rotating and tilting method having an opening at an upper end. A stirring drum, and a hot air generating means disposed opposite to the opening of the stirring drum. A predetermined amount of asphalt waste material is charged into the stirring drum, the stirring drum is rotated at a predetermined speed, and Hot air of a predetermined temperature generated by the generating means is injected into the stirring drum from the opening of the stirring drum, and the asphalt waste material is crushed and stirred by rotation of the stirring drum while being heated by the hot air,
By continuing the heating and crushing / stirring operation for a predetermined time, the asphalt component is melted and an asphalt mixture in a state where aggregates such as crushed stones are released is produced.

According to a second aspect of the present invention, in the method for reclaiming asphalt waste material according to the first aspect, the hot-air outlet of the hot-air generating means is configured to be movable in a direction away from and approaching the opening of the stirring drum. It is characterized by having.

According to a third aspect of the present invention, in the method for reclaiming asphalt waste material according to the first aspect, the stirring drum has an asphalt waste material input position where the opening of the stirring drum is directed upward, and a stirring position where the opening is directed obliquely upward. And the opening is configured to be tiltable between a discharge position facing obliquely downward.

According to a fourth aspect of the present invention, there is provided an apparatus for reclaiming asphalt waste material in a recyclable manner, comprising a base and a rotatable and tiltable support on the base for crushing and stirring the asphalt waste material. A stirring drum having an opening at the opening; a drive mechanism for rotating the stirring drum; and an asphalt waste material input position at which the opening of the stirring drum is directed upward, a stirring position at which the opening is directed obliquely upward, and the opening. A tilting operation mechanism that tilts between a discharge position that faces obliquely downward and a stirring drum that is disposed opposite to the opening of the stirring drum that is at the stirring position at a predetermined interval and that is heated to a predetermined temperature and that is heated from the opening. By injecting into
A hot air generating means is provided that generates asphalt mixture in a state where asphalt components of asphalt waste material crushed and stirred in the stirring drum and aggregates such as crushed stones are released.

According to a fifth aspect of the present invention, in the asphalt waste material recycling apparatus according to the fourth aspect, the hot air generating means is supported on the base so as to be movable in a direction of separating from and approaching the stirring drum. It is characterized by being supported by a support base.

According to a sixth aspect of the present invention, in the asphalt waste material recycling apparatus according to the fifth aspect, the hot air generating means can adjust the angle in the inclination direction at the upper end of the support base so as to face the opening of the stirring drum. It is characterized by being supported by.

According to a seventh aspect of the present invention, in the asphalt waste material recycling apparatus according to the fourth aspect, the hot air generating means is connected to an oil burner with a combustion cylinder and a rear end of the oil burner to supply combustion air. A fan, a fuel supply pump that supplies fuel to a fuel injection nozzle of the oil burner, a hot air blower fan positioned behind the combustion fan, an oil burner with a combustion cylinder, a combustion fan, and a hot air blower fan An outer cylinder that covers the outer circumference of the outer cylinder, and a louver provided with a hot air outlet provided at a tip of the outer cylinder, and an outer circumference of the oil burner with a combustion cylinder, a combustion fan, a hot air blower fan, and an inner circumference of the outer cylinder. An air passage is formed between the surfaces for sending air from the hot air blower fan toward the hot air outlet of the louver.

According to an eighth aspect of the present invention, in the asphalt waste material recycling apparatus according to the fourth aspect, the agitating drum is fixed to an inner peripheral wall of the agitating drum in an inclined manner in a rotation direction of the agitating drum and is exchangeably fixed. It is characterized by having a plurality of crushing and stirring blades.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a method and an apparatus for reclaiming asphalt waste according to the present invention will be described with reference to the drawings. FIG. 1 is a side view showing an overall configuration of an asphalt waste material recycling apparatus according to an embodiment of the present invention, FIG. 2 is a schematic plan view of FIG. 1, and FIG. FIG. 4 is a plan view of a stirring drum constituting the asphalt waste material recycling apparatus of the present invention, FIG. 5 is a cross-sectional view taken along the line AA of FIG. 4, and FIG. 6 is stirring applied to the stirring drum. FIG. 7 is a perspective view showing an example of a blade, FIG. 7 is an exploded perspective view of a hot air generator constituting the asphalt waste material recycling apparatus of the present invention, and FIG. 8 is a front view showing a state where the asphalt waste material recycling apparatus of the present invention is mounted on a truck. is there.

1, 2, 3 and 8, an asphalt waste material recycling apparatus 1 comprises a base 10, a stirring drum 2
0, a support mechanism 30 for the stirring drum 20, a rotation drive mechanism 40 for the stirring drum 20, and a tilt operation mechanism 5 for the stirring drum 20
0, a hot air generator (corresponding to a hot air generator in the claims) 60, a support base 70 for the hot air generator 60, and the like.

As shown in FIGS. 1 and 2, the base 10 is formed by assembling a shape steel such as an H-shaped steel into a rectangular frame.
It is configured so that it can be placed on the bed 3 of the truck 2 shown in FIG. A discharge chute 11 for discharging the regenerated asphalt mixture to the outside of the stirring drum 20 is swingably connected to one end of the base 10 in the longitudinal direction.

The stirring drum 20 crushes and mixes asphalt lump (crushed into a lump having a maximum size of about 30 cm) peeled from a road surface or the like at a construction site, as shown in FIGS. 1, 3 and 5. , Has a substantially bottomed via barrel shape with an open upper end and a closed lower end. This stirring drum 20
Is rotatably and tiltably supported by a support mechanism 30 installed on the base 10 near the discharge chute 11.

The rack teeth 20 are provided on the lower surface of the agitating drum 20 at an outer peripheral portion located substantially at the center of the rotation axis direction L.
1 is provided integrally with the ring member 202.
Further, a shaft 203 is provided on the lower surface of the bottom of the stirring drum 20 so as to be aligned with the rotation axis L.

As shown in FIGS. 4 and 5, a pair of inner circumferential walls near the bottom of the stirring drum 20 and inner circumferential walls near the opening 20A are spaced apart by 180 degrees in the inner circumferential direction. The lower crushing and stirring blades 204 and the upper crushing and stirring blades 205 are fixed to each other while being inclined in the rotation direction of the stirring drum 20.

The lower crushing and stirring blades 204 are shown in FIG.
As shown in (A), a rectangular plate 204B having a hole 204A formed by hollowing the inside, a plurality of mounting pieces 204C provided at one long edge of the plate 204B, and a plate 20
Saw-shaped crushing teeth 204D formed over the entire length of the other end of the long side of 4B, and saw-shaped crushing teeth formed perpendicular to the plane of the plate 204B near the other end of the long side of the plate 204B. 204E.

The lower crushing and stirring blade 204 has its mounting piece 204C inserted into a through hole (not shown) formed in the stirring drum 20 from the inside of the stirring drum 20, and its outwardly projecting portion is bent. It is configured to be fixed to the stirring drum 20 by being bolted to the outer wall of the stirring drum 20. With such an attachment structure, replacement when the lower crushing stirring blade 204 is worn or broken is facilitated.

As shown in FIG. 6 (B), the upper crushing and stirring blade 205 has a rectangular plate member 205A and a plurality of mounting pieces 20 provided at one long edge of the plate member 205A.
5B, a sawtooth-shaped crushed tooth 205C formed over the entire length of the other end of the long side of the plate 205A, and a sawtooth formed perpendicular to the plane of the plate 205A near the other end of the long side of the plate 205A. Crushed teeth 205D.

In the upper crushing stirring blade 205, the mounting piece 205B is inserted from the inside of the stirring drum 20 into a through hole (not shown) formed in the stirring drum 20, the outer protruding portion is bent, and the bent portion is bent. It is configured to be fixed to the stirring drum 20 by being bolted to the outer wall of the stirring drum 20. With such a mounting structure, replacement when the upper crushing stirring blade 205 is worn or damaged is facilitated.

The support mechanism 30 includes a pair of support legs 3 vertically provided opposite to each other at both ends in the short direction on the base 10.
01, and a substantially U-shaped support frame 302 for supporting the stirring drum 20. The support frame 302 has shaft portions 303 horizontally provided at both ends thereof rotatably mounted on the upper ends of both support legs 301. By being worn, it is swingably supported by the support leg 301. Further, the stirring drum 20 is rotatably supported around the axis L with respect to the support frame 203 by attaching a shaft 203 provided on the bottom lower surface to the center of the support frame 302. You.

In order to increase the support strength of the stirring drum 20 with respect to the support frame 203, the outer periphery of the stirring drum 20 near the ring member 202 may be supported by a support member integrated with the support frame 302. .

The rotation drive mechanism 40 of the stirring drum 20
Is a motor 4 installed on a base 10 as shown in FIG.
01, an intermediate shaft 403 connected to a drive shaft of the electric motor 401 via a joint 402, and one shaft 303 of the support frame 302, which is rotatably supported through the shaft 303 in the axial direction. A drive shaft 404, a pinion gear 405 fixed to one end of the drive shaft 404 and meshing with the rack teeth 201 of the ring member 202, a driven pulley 406 fixed to the other end of the drive shaft 404, and an intermediate shaft 403. And a belt 408 wound around the driving pulley 407 and the driven pulley 406. Reference numeral 409 denotes a cover for the driving pulley 407, the driven pulley 406, and the belt 408.

The tilting operation mechanism 50 of the stirring drum 20
As shown in FIGS. 1 and 3, a cover member 501 attached to one support leg 301 and this cover member 501
A worm wheel 502 fixed to the other shaft portion 303 of the support frame 302 projecting into the inside; a worm 503 meshed with the worm wheel 502 and rotatably supported by the cover member 501; and a lower portion of the cover member 501. A manual handle 504 is rotatably supported at a location, and an endless chain 507 wound around a sprocket 505 provided on the manual handle 504 and a sprocket 506 provided on a shaft of the worm 503.

As shown in FIGS. 1 and 7, the hot air generator 60 includes a combustion cylinder 601 using light oil such as kerosene as fuel.
A oil burner 601 with A
1, a combustion fan 6 connected to the rear end and supplying combustion air.
02 and the fuel injection nozzle 601B of the oil burner 601
Supply pump 603 for supplying light oil through a fuel supply pipe 603A, a hot air blower fan 604 located behind the combustion fan 602, and an oil with a combustion cylinder 601A arranged on these lines An outer cylinder 605 that covers and accommodates the outer periphery of the burner 601, the combustion fan 602, and the hot air blower fan 604 and that can be divided into two, and a louver 606 provided at the end of the outer cylinder 605 and having a hot air outlet 606 </ b> A. The air sucked from the rear end opening of the outer cylinder 605 by the hot air blower fan 604 is provided between the outer periphery of the oil burner 601 with the combustion tube 601A, the combustion fan 602, and the inner circumferential surface of the outer tube 605. Is formed in the louver 606 so as to feed the hot air toward the hot air outlet 606A.

The oil burner 601 is connected to the ignition device 60.
1C. Further, a fuel tank 61 such as kerosene is connected to the fuel supply pump 603 via a fuel supply hose 607. This fuel tank 61 is installed on a support base 70 described later. At the lower surface of the outer cylinder 605, a mounting piece 605A for mounting the hot air generator 60 to the support base 70 and adjusting the inclination angle with respect to the opening 20A of the stirring drum 20 is provided.

The support pedestal 70 supports the hot air generator 60 in the base 10 so as to be movable in a direction of separating from and approaching the stirring drum 20, and as shown in FIG. A plurality of wheels 701 are provided, and the wheels 701 are rotatably mounted on rails 101 provided on the base 10 along the longitudinal direction thereof. The rail 101 is provided with a stopper 102 for regulating a retreat position of the support gantry 70 and a stopper 103 for regulating a forward position of the support gantry 70 (storage position of the support gantry 40 including the hot air generator 60). I have.

An outer cylinder 60 is provided at the upper end of the support base 70.
No. 5 mounting piece 605A is swingably connected by a shaft pin 702, and a screw hole 605B is formed in the mounting piece 605A of the outer cylinder 605 at a position separated from the shaft pin 702. Has a hot air generator 60
An angle adjusting screw 703 for adjusting the inclination angle of the stirring drum 20 with respect to the opening 20 </ b> A is screwed through an elongated hole 704 formed at the upper end of the support base 70.

In FIGS. 1 and 3, reference numeral 80 denotes a control panel of the asphalt waste material regenerating apparatus 1 attached to the side of the base 10, and the control panel 80 includes a drum rotating drive as shown in FIG. An on switch button 801 for starting the electric motor 401 of the mechanism 40 and an off switch button 802 for stopping the motor 401;
On-switch button 801 for starting the combustion fan 602, fuel supply pump 603, and hot-air blower fan 604 of the hot-air generator 60, and off-switch button 802 for stopping the operation, and operating time of the combustion fan 602, the fuel supply pump 603, and the hot-air blower fan 604. ON switch button 80 for starting operation of timer 805 (installed in control panel 80) for setting
3 and an off switch button 804 for forcibly turning off the timer 805.

The ignition device 60 of the oil burner 601
1C operates when the on-switch button 803 is turned on to ignite the oil burner 601.
The control panel 80 is configured to be supplied with electric power (single-phase 100 V) from a commercial power supply or a power generator installed at a construction site.

Next, the operation of the asphalt waste material regenerating apparatus according to the present embodiment configured as described above will be described. At the time of asphalt waste material regeneration, the asphalt waste material regeneration device 1 is mounted on a truck, carried into a construction site along with the truck, and the asphalt waste material regeneration device 1 is placed on the carrier 3 of the truck 2 in the state shown in FIG. The discharge chute 11 is lowered as shown by the solid line in FIG. 1, and the power supply cord 806 with the plug of the control panel 80 is connected to a commercial power supply or a power generator.

Next, the manual handle 5 of the tilt operation mechanism 50
By operating the 04, the stirring drum 20 is rotated and held at the asphalt waste material input position (or storage position) indicated by the one-dot chain line in FIG.

Next, as shown by the solid line in FIG. 1, the support gantry 70 is retracted to a position where its wheel 701 contacts the stopper 102, and the support gantry 70 is fixed at this retracted position. Then, the hot air generator 60 is changed from the horizontal state shown by the two-dot chain line in FIG. 1 to the state shown by the solid line such that the hot air outlet 606A of the louver 606 of the hot air generator 60 faces the opening 20A of the stirring drum 20. The hot air generator 60 is fixed to the support base 70 by inclining and tightening the angle adjusting screw 703. At this time, the hot air outlet 606A of the hot air generator 60 and the stirring drum 2
The separation distance from the zero opening 20A is about 10 cm. At this time, the axis of rotation L of the stirring drum 20 and the axis of the hot air generator 60 coincide with each other as shown in FIG.

The distance between the hot air outlet 606A of the hot air generator 60 and the opening 20A of the stirring drum 20 is 10c.
The reason is that the asphalt component is burned or vaporized by the hot air (120 ° C. to 150 ° C.) injected into the stirring drum 20 from the hot air outlet 606A of the hot air generator 60 when the asphalt waste material is regenerated. This is to prevent

In this state, the asphalt waste material peeled off from the road surface of the construction site is crushed into a size of about 30 cm or less, and then a predetermined amount, for example, about 130 kg, of this asphalt waste material is put into the stirring drum 20 through the opening 20A.

Next, by operating the manual handle 504, the stirring drum 20 is tilted to the stirring position indicated by the solid line in FIG.
In this state, the start switch button 801 of the control panel 80 is activated.
To start the electric motor 401 to start the hand stirring drum 2
0 is rotated at a predetermined speed, for example, 10 to 20 rpm.
After that, the timer 805 is operated by pressing the ON switch button 803 for timer operation, and at the same time, the combustion fan 602, the fuel supply pump 603, and the hot air blowing fan 6
04 is started, and the oil burner 601 is ignited by operating the ignition device 601C.

When the oil burner 601 of the hot air generator 60 is ignited, the kerosene supplied by the fuel supply pump 603 is injected from the fuel injection nozzle 601B into the combustion tube 601A in the form of mist and supplied from the combustion fan 602. The air is mixed with the air and burns, and becomes a flame flow, which is jetted into the louver 606 from the opening at the end of the combustion tube 601A. At the same time, the air pressure-fed by the hot-air blower fan 604 is heated while passing through the outer circumference of the combustion cylinder 601A in the outer cylinder 605, and further heated by the flame flow ejected from the combustion cylinder 601A to form a louver. Hot air (120 ° C. to 150 ° C.) is emitted from the hot air outlet 606A of the stirring drum 606 and injected into the stirring drum 20 from the hot air outlet 606A of the stirring drum 20.

On the other hand, the stirring drum 20 is
As a result, the asphalt mass in the stirring drum 20 is heated by the hot air from the hot air generator 60 and the crushing stirring blades 204 and 2 in the stirring drum 20 are rotated.
05, the asphalt block is crushed and stirred by repeatedly performing the scooping and falling motions. By continuing the heating and the crushing and stirring operation for a predetermined time (30 to 40 minutes) set by the timer 805, the asphalt in the solidified state is melted without burning and evaporating. Aggregates such as crushed stones are released. As a result, an asphalt mixture having the same quality as that of the asphalt mixture produced in the asphalt plant is generated. At this time, the water contained in the asphalt mass evaporates and is removed. In addition, combustible dust adhering to the asphalt mass is carbonized by hot air at 120C to 150C.

When the time set by the timer 805 elapses, the combustion fan 602 and the fuel supply pump 60
3 and the hot air blowing fan 604 are stopped, and at the same time, the injection of the hot air from the hot air generator 60 to the stirring drum 20 is also stopped.

When the reproduced asphalt mixture is taken out from the stirring drum 20, the manual handle 504 is operated while the stirring drum 20 is rotated.
It tilts to the discharge position shown by the two-dot chain line in FIG. Thereby, the recycled asphalt mixture in the stirring drum 20 is discharged to the discharge chute 11 from the opening 20A.

Therefore, for example, the restored road can be paved with asphalt by using the recycled asphalt mixture discharged through the discharge chute 11. In order to stop the rotation of the stirring drum 20, the off switch button 802 may be pressed. Timer 8
When resetting 05, the off switch button 804 may be pressed.

When adjusting the distance between the hot-air outlet 606A of the hot-air generator 60 and the opening 20A of the stirring drum 20, the support frame 70 including the hot-air generator 60 is required.
Is moved toward or away from the stirring drum 20, and the hot air outlet 60 of the hot air generator 60 is moved.
This is performed by adjusting the inclination angle of the stirring drum 20 and the inclination angle of the hot-air generator 60 so that 6A and the opening 20A of the stirring drum 20 face each other.

According to the present embodiment, asphalt waste material peeled off from a pavement road or the like can be easily and inexpensively converted into asphalt mixture material having the same quality as asphalt mixture material produced in an asphalt plant. It can be recycled and reused for finishing road pavements. Along with this, it is possible to solve problems such as the problem of destruction of the natural environment, social problems such as securing landfill sites and illegal dumping, and effectively use asphalt waste.

Further, since the asphalt waste material recycling apparatus 1 in this embodiment is configured to be easily conveyed by a two-ton truck or the like, the asphalt waste material recycling apparatus 1 is brought to a construction site, so that the asphalt waste material is recycled. Can be easily performed on the construction site.

In the present invention, the rotation drive mechanism 40 of the stirring drum 20, the tilt operation mechanism 50 of the stirring drum 20,
The hot-air generator 60 and the support frame 70 of the hot-air generator 60 are not limited to those having the configuration described in the above embodiment, but can be variously changed and deformed.

[0048]

As described above, according to the method and apparatus for reclaiming asphalt waste material of the present invention, asphalt waste material peeled off from a pavement road surface or the like is melted by hot air injected and injected into a stirring drum. Therefore, asphalt components can be prevented from being burned or vaporized, and can be easily and inexpensively recycled into asphalt mixture materials of the same quality as asphalt mixture materials produced in asphalt plants. Can be reused. As a result, it is possible to solve problems such as the destruction of the natural environment, social problems such as securing a landfill site and illegal dumping, and to effectively use asphalt waste.

[Brief description of the drawings]

FIG. 1 is a side view showing the overall configuration of an asphalt waste material recycling apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic plan view of FIG.

FIG. 3 is a front view showing a support mechanism and a drive mechanism of the stirring drum according to the embodiment of the present invention.

FIG. 4 is a plan view of a stirring drum constituting the asphalt waste material recycling apparatus of the present invention.

FIG. 5 is a sectional view taken along the line AA of FIG. 4;

FIG. 6 is a perspective view showing an example of a stirring blade applied to the stirring drum of the present invention.

FIG. 7 is an exploded perspective view of a hot air generator constituting the asphalt waste material recycling apparatus of the present invention.

FIG. 8 is a front view showing a state where the asphalt waste material recycling apparatus of the present invention is mounted on a truck.

FIG. 9 is a front view of a control panel in the asphalt waste material recycling apparatus of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 asphalt waste material recycling device 10 base 20 stirring drum 20A opening 30 support mechanism 40 rotation drive mechanism 50 tilting operation mechanism 60 hot air generator 70 support gantry 80 control panel 601 oil burner 601A combustion cylinder 601B fuel injection nozzle 602 combustion fan 603 fuel supply Pump 604 Hot air blower fan 605 Outer cylinder 606 Louver 606A Hot air outlet

Claims (8)

[Claims] 1. A method for reclaiming asphalt waste material in a recyclable manner, comprising: a rotatable and tiltable stirring drum having an opening at an upper end;
It is provided with hot air generating means arranged opposite to the opening of the stirring drum, and a predetermined amount of asphalt waste material is charged into the stirring drum,
While rotating the stirring drum at a predetermined speed, hot air of a predetermined temperature generated by the hot air generating means is injected into the stirring drum from the opening of the stirring drum, and the asphalt waste material is heated by the hot air while rotating the stirring drum. Crushing and stirring, and by continuing the heating and crushing and stirring operation for a predetermined time, asphalt components are melted and asphalt mixed material in a state where aggregates such as crushed stones are released is produced, and asphalt waste material recycling characterized by the above-mentioned. Method. 2. A hot air outlet of the hot air generating means,
2. The asphalt waste material recycling method according to claim 1, wherein the asphalt waste material is configured to be movable in a direction away from and approaching the opening of the stirring drum. 3. The stirring drum can be tilted between an asphalt waste material input position where the opening of the stirring drum is directed upward, a stirring position where the opening is directed obliquely upward, and a discharge position where the opening is directed diagonally downward. The method for reclaiming asphalt waste material according to claim 1, wherein the method is configured as follows. 4. An apparatus for reclaiming asphalt waste material in a recyclable manner, comprising: a base; a stirrer supported on the base so as to be rotatable and tiltable to crush and stir the asphalt waste material; A drum; a driving mechanism for rotating the stirring drum; and a stirring mechanism for rotating the stirring drum; an asphalt waste material input position where the opening of the stirring drum is directed upward; a stirring position where the opening is directed obliquely upward; and the opening is directed diagonally downward. A tilting operation mechanism that tilts between the discharge position and a stirrer operating at an opening of the stirrer drum at the stirrer position with a predetermined interval therebetween, and injects hot air heated to a predetermined temperature into the stirrer drum through the opening. As a result, the asphalt component of the asphalt waste material crushed and stirred in the stirring drum is melted, and the asphalt mixed material in a state where aggregates such as crushed stones are released is produced. Asphalt waste reproducing apparatus characterized by comprising: a hot-air generating means, a to. 5. The apparatus according to claim 4, wherein the hot air generating means is supported on a support base movably supported on the base in a direction away from and approaching the stirring drum. Asphalt waste recycling equipment. 6. The asphalt according to claim 5, wherein the hot-air generating means is supported at the upper end of the support base so as to be adjustable in angle in an inclined direction so as to face the opening of the stirring drum. Waste material recycling equipment. 7. The hot air generating means includes an oil burner with a combustion cylinder, a combustion fan connected to a rear end of the oil burner for supplying combustion air, and a fuel for supplying fuel to a fuel injection nozzle of the oil burner. A supply pump, and a hot-air blower fan located behind the combustion fan;
The oil burner with a combustion cylinder, an outer cylinder that covers the outer periphery of the combustion fan and the hot air blower fan, and a louver with a hot air outlet provided at the tip of the outer cylinder, the oil burner with a combustion cylinder, a combustion fan, An air passage is formed between an outer periphery of the hot air blower fan and an inner peripheral surface of the outer cylinder for pressure-feeding air from the hot air blower fan toward a hot air outlet of the louver. 4. The asphalt waste material recycling apparatus according to 4. 8. The stirring drum according to claim 4, wherein the stirring drum is provided with a plurality of crushing stirring blades which are inclined with respect to an inner peripheral wall of the stirring drum in a rotation direction of the stirring drum and are exchangeably fixed. Asphalt waste recycling equipment.