阅读说明：本技术 一种路面坑槽自动铣刨上料式微波加热养护车 (Automatic milling and feeding type microwave heating maintenance vehicle for pavement pit slot ) 是由 马登成 桂学 王延明 李群德 张东省 高红飞 桂章 刘伟 于 2021-06-28 设计创作，主要内容包括：本发明公开了一种路面坑槽自动铣刨上料式微波加热养护车,包括：底盘车、车架、粘层油喷洒装置、微波加热搅拌装置、负压吸料装置、铣刨转子移动装置及铣刨料输送装置；车架安装在底盘车上,粘层油喷洒装置、微波加热搅拌装置及铣刨料输送装置设置在车架内,负压吸料装置和铣刨转子移动装置设置在车架上；铣刨转子移动装置具有铣刨转子,负压吸料装置具有延伸至铣刨转子处用于吸附铣刨料的吸盘；铣刨料输送装置安装在微波加热搅拌装置和负压吸料装置出料口之间。该路面坑槽自动铣刨上料式微波加热养护车具有自动铣刨、负压上料,微波加热搅拌再生等功能,无需养护工人进行高强度作业,降低了劳动强度、提高了养护车自动化水平。(The invention discloses an automatic milling and feeding type microwave heating maintenance vehicle for a pavement pit slot, which comprises: the device comprises a chassis vehicle, a vehicle frame, a viscous layer oil spraying device, a microwave heating and stirring device, a negative pressure material sucking device, a milling and planing rotor moving device and a milling and planing material conveying device; the frame is arranged on the chassis truck, the viscous layer oil spraying device, the microwave heating and stirring device and the milling and planing material conveying device are arranged in the frame, and the negative pressure material sucking device and the milling and planing rotor moving device are arranged on the frame; the milling rotor moving device is provided with a milling rotor, and the negative pressure material suction device is provided with a sucking disc extending to the milling rotor for sucking milling materials; the milling and planing material conveying device is arranged between the microwave heating and stirring device and the discharge hole of the negative pressure material suction device. The automatic milling and feeding type microwave heating maintenance vehicle for the pavement pit slot has the functions of automatic milling and feeding, negative pressure feeding, microwave heating, stirring and regeneration and the like, does not need maintenance workers to perform high-intensity operation, reduces the labor intensity and improves the automation level of the maintenance vehicle.)

1. The utility model provides a road surface pit slot is automatic mills plane material loading formula microwave heating maintenance car which characterized in that includes: the device comprises a chassis truck (1), a frame (7), a viscous layer oil spraying device (2), a microwave heating and stirring device (3), a negative pressure material sucking device (4), a milling rotor moving device (5) and a milling material conveying device (6); the frame (7) is arranged on the chassis truck (1), the viscous layer oil spraying device (2), the microwave heating stirring device (3) and the milling material conveying device (6) are arranged in the frame (7), and the negative pressure material sucking device (4) and the milling rotor moving device (5) are arranged on the frame (7);

the milling rotor moving device (5) is provided with a milling rotor (501), and the negative pressure material suction device (4) is provided with a suction cup (405) extending to the milling rotor (501) for sucking milling materials; the viscous layer oil spraying device (2) is provided with a viscous layer oil spraying head (203) which is used for spraying viscous layer oil in the viscous layer oil tank (201) to a clean pit groove after milling and collecting;

the milling and planing material conveying device (6) is arranged between the microwave heating and stirring device (3) and the discharge hole of the negative pressure material suction device (4).

2. The automatic milling and feeding type microwave heating maintenance vehicle for the road surface pit slot as claimed in claim 1, wherein the viscous layer oil spraying device (2) comprises a viscous layer oil tank (201) and a viscous layer oil pipe (202); the viscous layer oil spray head (203) is connected with the viscous layer oil tank (201) through the viscous layer oil pipe (202).

3. The automatic milling and feeding type microwave heating maintenance vehicle for the road surface pit slot as recited in claim 1, characterized in that the viscous layer oil spray head (203) is arranged on the milling rotor moving device (5) and is positioned between the milling machine (501) and the sucking disc (405) for adsorbing the aggregate.

4. The automatic milling and feeding type microwave heating maintenance vehicle for the road surface pit slot as claimed in claim 1, characterized in that the microwave heating stirring device (3) is a vertical stirring device or a horizontal stirring device.

5. The automatic milling and feeding type microwave heating maintenance vehicle for the road surface pit slot as claimed in claim 1, wherein the negative pressure material suction device (4) comprises a negative pressure centrifugal fan (401), a settling tank (402), a settling tank bracket (403) and a material suction corrugated pipe (404); the negative pressure centrifugal fan (401) is connected with the settling tank (402), the settling tank (402) is connected with the material suction corrugated pipe (404), and the sucking disc (405) is arranged at the end part of the material suction corrugated pipe (404); the settling tank (402) is supported on the chassis (1) through a settling tank support (403).

6. The automatic milling and feeding type microwave heating maintenance vehicle for the pavement pit, according to claim 1, characterized in that the milling rotor moving device (5) comprises a vertical moving slide (502), a horizontal moving slide, a suspension moving slide (505) and a milling rotor moving lead screw (506); the milling rotor (501) is arranged on a milling rotor moving screw (506) of a suspension moving slide rail (505), the suspension moving slide rail (505) is arranged on a vertical moving slide rail (502), a horizontal moving lower slide rail (503) and a horizontal moving upper slide rail (504) are arranged in parallel, and the vertical moving slide rail (502) is arranged on the end part of the horizontal moving slide rail.

7. The automatic milling and feeding type microwave heating maintenance vehicle for the pavement pit as claimed in claim 6, wherein two vertical movable sliding rails (502) are arranged in parallel on the suspension, and the ends of the suspended movable sliding rails (505) are respectively arranged on the two vertical movable sliding rails (502); the horizontal moving sliding rail comprises a horizontal moving lower sliding rail (503) and a horizontal moving upper sliding rail (504) which are arranged in parallel, and the suspension is arranged on the end part of the horizontal moving sliding rail.

8. The automatic milling and feeding type microwave heating maintenance vehicle for the pavement pit slot as claimed in claim 1, wherein the milling and conveying device (6) comprises a conveyor belt baffle (601), a conveyor belt motor (602), a conveyor belt (603), and a conveyor belt bracket (604); the conveyer belt (603) is supported on the conveyer belt bracket (604), the conveyer belt baffle (601) is arranged at two sides of the conveyer belt (603), and the conveyer belt motor (602) is arranged on the conveyer belt baffle (601).

9. The automatic milling and feeding type microwave heating maintenance vehicle for the pavement pit slot as claimed in claim 1, characterized in that the milling and feeding device (6) is installed at the end of the microwave heating and stirring device (3) lower than the end of the negative pressure material suction device (4).

Technical Field

The invention belongs to the field of asphalt pavement maintenance equipment, and relates to an automatic milling and feeding type microwave heating maintenance vehicle for a pavement pit slot.

Background

With the increasing speed and level of highway construction, asphalt pavements are increasingly widely used. After the vehicle is started, road surface diseases such as cracking, rutting, pit and groove, slurry turning, upheaval and the like occur, and the road surface needs to be maintained. The existing asphalt pavement maintenance vehicle or the traditional heating mode is adopted to heat and stir the pavement material, so that the overheating and aging of the pavement material are often caused, and the service time of the pavement material after repairing the defects such as pits and the like is seriously influenced; the microwave heating regeneration can effectively improve the high-temperature stability and the low-temperature cracking resistance of the repaired pavement, and has higher durability and fatigue resistance. In addition, the existing maintenance vehicle heats the pit slot, a new mixture is added into the pit slot after heating, and the pit slot is leveled and rolled after being stirred, so that the mixture stirring uniformity is poor, and the repairing quality is not high; or the pit is manually cut, crushed and fed, and then heated and stirred on the vehicle, so that the labor intensity of workers is high, the efficiency is low, the time consumption is long, the pit repairing quality is not high, and the requirements of modern highway maintenance, rapid repairing and rapid vehicle passing are not met.

Disclosure of Invention

Aiming at the problems in the prior art, the invention relates to an automatic milling and feeding type microwave heating maintenance vehicle for a pavement pit slot, which can realize the functions of milling, material absorption, microwave heating, stirring, regeneration and the like of an asphalt pavement and is a microwave rapid repair device for asphalt pavement diseases. Solves the problems of high labor intensity, low efficiency, long time consumption, low repairing quality and the like of workers in the prior asphalt pavement repairing.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a road surface pit slot is automatic mills plane material loading formula microwave heating maintenance car, includes: the device comprises a chassis vehicle, a vehicle frame, a viscous layer oil spraying device, a microwave heating and stirring device, a negative pressure material sucking device, a milling and planing rotor moving device and a milling and planing material conveying device; the frame is arranged on the chassis truck, the viscous layer oil spraying device, the microwave heating and stirring device and the milling and planing material conveying device are arranged in the frame, and the negative pressure material sucking device and the milling and planing rotor moving device are arranged on the frame;

the milling rotor moving device is provided with a milling rotor, and the negative pressure material suction device is provided with a suction cup extending to the milling rotor for sucking milling materials; the viscous layer oil spraying device is provided with a viscous layer oil spraying head used for spraying viscous layer oil in the viscous layer oil tank to a clean pit groove after milling, milling and collecting;

the milling and planing material conveying device is arranged between the microwave heating and stirring device and the discharge hole of the negative pressure material suction device.

As a further improvement of the invention, the sticky layer oil spraying device comprises a sticky layer oil tank and a sticky layer oil pipe; the spray head of the viscous layer oil passes through the viscous layer oil pipe and the viscous layer oil tank.

As a further development of the invention, the slime oil spray head is arranged on the milling rotor displacement device between the milling machine and the suction cup that adsorbs the aggregate.

As a further improvement of the invention, the microwave heating stirring device is a vertical stirring device or a horizontal stirring device.

As a further improvement of the invention, the negative pressure material suction device comprises a negative pressure centrifugal fan, a settling tank bracket and a material suction corrugated pipe; the negative pressure centrifugal fan is connected with the settling tank, the settling tank is connected with the material suction corrugated pipe, and the sucker is arranged at the end part of the material suction corrugated pipe; the settling tank is supported on the chassis vehicle through a settling tank bracket.

As a further improvement of the invention, the milling rotor moving device comprises a vertical moving slide rail, a horizontal moving slide rail, a suspension moving slide rail and a milling rotor moving lead screw; the milling rotor is arranged on a milling rotor moving screw of a suspended moving slide rail, the suspended moving slide rail is arranged on a vertical moving slide rail, a horizontal moving lower slide rail and a horizontal moving upper slide rail are arranged in parallel, and the vertical moving slide rail is arranged on the end part of the horizontal moving slide rail.

As a further improvement of the invention, the two vertical movable sliding rails are arranged on the suspension in parallel, and the end parts of the suspension movable sliding rails are respectively arranged on the two vertical movable sliding rails; the horizontal movement sliding rail comprises a horizontal movement lower sliding rail and a horizontal movement upper sliding rail which are arranged in parallel, and the suspension is arranged on the end part of the horizontal movement sliding rail.

As a further improvement of the invention, the milling material conveying device comprises a conveying belt baffle, a conveying belt motor, a conveying belt and a conveying belt bracket; the conveyer belt supports on the conveyer belt support, and the conveyer belt baffle sets up in the conveyer belt both sides, and the conveyer belt motor sets up on the conveyer belt baffle.

As a further improvement of the invention, the milled material conveying device is arranged at the end of the microwave heating and stirring device and is lower than the end of the negative pressure material suction device.

A working method of a pavement pit groove automatic milling and feeding type microwave heating maintenance vehicle comprises the following steps:

after the milling rotor moving device moves to a specified position, the milling rotor mills the pavement damaged part, and the milling rotor moves away after milling is finished;

the negative pressure material suction device starts to work and sucks and sweeps the milled material which is milled down by the sucking disc;

milling materials enter a negative pressure material suction device, are dedusted by a dedusting box, enter a microwave heating and stirring pot through a milling material conveying device, and are subjected to microwave heating and stirring;

and after the reclaimed materials are completely absorbed, conveying the reclaimed materials heated and stirred by the microwave to the stirring pot, and spraying the viscous layer oil into the pit groove by a viscous layer oil spraying device.

Compared with the prior art, the invention has the following beneficial effects:

the automatic milling and feeding type microwave heating maintenance vehicle for the pavement pit slot can realize the functions of automatic milling, automatic negative pressure feeding, microwave heating stirring, discharging and the like for pavement diseases, and maintenance workers can complete all maintenance and repair operations only by operating a remote control handle or related buttons. The purposes of automatic milling, material suction and microwave heating regeneration in the process of repairing the pits of the asphalt pavement can be achieved. Firstly, the maintenance vehicle is driven to a problem road section needing to be repaired, and then the milling rotor is moved to a pit slot needing to be milled and repaired through the moving device. And starting the milling rotor to mill. And after milling and crushing the road surface and finishing negative pressure material suction, spraying the viscous layer oil in the cleaned pit slot by the viscous layer oil spraying device. And conveying the reclaimed materials subjected to dust removal by the settling tank to a microwave heating stirring pot by using a closed belt conveyor, and heating and stirring in the microwave heating stirring pot. And finally, spreading the heated and regenerated asphalt mixture in the pit slot, leveling and rolling to complete the repair of the pit slot on the pavement. The automatic milling and feeding type microwave heating maintenance vehicle for the pavement pit slot has the functions of automatic milling and feeding, negative pressure feeding, microwave heating, stirring and regeneration and the like, does not need maintenance workers to perform high-intensity operation, reduces the labor intensity and improves the automation level of the maintenance vehicle.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. Those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the invention as a matter of case. In the drawings:

FIG. 1 is a general block diagram of the present invention;

FIG. 2 is a view of the structure of the negative pressure suction material;

fig. 3 shows a schematic view of a milling rotor displacement device;

fig. 4 is a vertical movement structure diagram of a milling rotor moving device;

fig. 5 is a horizontal movement structure diagram of a milling rotor moving device;

FIG. 6 is a schematic view of a milled material conveying device;

the various reference numbers in the figures mean: 1-chassis truck, 2-viscous layer oil spraying device, 201-viscous layer oil tank, 202-viscous layer oil pipe, 203-viscous layer oil nozzle, 3-microwave heating stirring device, 4-negative pressure material sucking device, 401-negative pressure centrifugal fan, 402-milling material settling tank, 403-settling tank support, 404-material sucking pipe, 405-sucking disc, 5-milling rotor moving device, 501-milling rotor, 502-vertical moving slide rail, 503-horizontal moving lower slide rail, 504-horizontal moving upper slide rail, 505-hanging moving slide rail, 506-milling rotor moving lead screw, 6-milling material conveying device, 601-conveying belt baffle, 602-conveying belt motor, 603-conveying belt, 604-conveying belt support and 7-vehicle frame.

The embodiments of the invention will be explained and explained in further detail with reference to the figures and the detailed description.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the automatic milling and feeding type microwave heating maintenance vehicle for the pavement pit slot aims at repairing the problem of asphalt pavement diseases. The asphalt pavement disease part is milled by a milling rotor, the reclaimed materials are heated and paved on the pavement again, and the pavement disease is repaired.

The utility model provides an automatic material loading formula microwave heating maintenance car that mills plane of road surface pit groove includes chassis car 1, adhesive layer sprinkler 2, microwave heating agitating unit 3, and the material device 4 is inhaled to the negative pressure, mills plane rotor mobile device 5 and mills plane material conveyor 6. All devices, except the milling rotor moving device 5, are installed inside the wagon. The working sequence is that after the milling rotor moving device 5 moves to a specified position, the milling rotor 501 mills the damaged pavement part, and after milling is completed, the milling rotor 501 moves away. The negative pressure suction device 4 starts to suck and sweep the milled material which is milled down by the suction cup 405. Milling material enters a dust removal box, after dust removal is carried out by the dust removal box, the milling material enters a microwave heating stirring pot 3 through a milling material conveying device 6, and microwave heating stirring is carried out. The stirring pot can adopt vertical stirring or horizontal stirring, or other forms, and the invention is exemplified by vertical stirring.

Specifically, a frame 7 is arranged on a chassis truck 1, a viscous layer oil spraying device 2, a microwave heating and stirring device 3 and a milling material conveying device 6 are arranged in the frame 7, and a negative pressure material sucking device 4 and a milling rotor moving device 5 are arranged on the frame 7;

the milling rotor moving device 5 has a milling rotor 501, and the negative pressure material suction device 4 has a suction cup 405 extending to the milling rotor 501 for sucking milling material; the viscous layer oil spraying device 2 is provided with a viscous layer oil spraying head 203 for spraying viscous layer oil in the viscous layer oil tank 201 to a clean pit groove after milling and collecting;

the milling and milling material conveying device 6 is connected with the negative pressure material sucking device 4 and the microwave heating and stirring device 3.

The milling material conveying device 6 is arranged between the microwave heating and stirring device 3 and the discharge hole of the negative pressure material suction device 4.

Referring to fig. 2, the negative pressure suction device 4 includes a negative pressure centrifugal fan 401, a settling tank 402, a settling tank bracket 403, a suction pipe 404 and a suction cup 405. The negative pressure centrifugal fan 401 is connected with a settling tank 402, the settling tank 402 is connected with a material suction corrugated pipe 404, and a sucking disc 405 is arranged at the end part of the material suction corrugated pipe 404; the settling tank 402 is supported on the chassis 1 by a settling tank support 403. In order to absorb the reclaimed materials to the maximum extent, the size of the settling tank 402 is enlarged, so that the absorbed reclaimed materials can be completely stored, and sufficient negative pressure is created when the reclaimed materials are absorbed. After the reclaimed materials are completely sucked, the reclaimed materials are conveyed to the stirring pot, the sticky layer oil spraying device 2 works, sticky layer oil is sprayed in the pit groove after cleaning, and preparation is made for next asphalt paving.

Referring to fig. 3-5, the milling rotor moving device 5 includes a milling rotor 501, a vertical moving slide rail 502, a horizontal moving lower slide rail 503, a horizontal moving upper slide rail 504, a hanging moving slide rail 505, and a milling rotor moving lead screw 506.

The milling rotor 501 is arranged on a milling rotor moving screw 506 of a suspended moving slide rail 505, the suspended moving slide rail 505 is arranged on a vertical moving slide rail 502, a horizontal moving lower slide rail 503 and a horizontal moving upper slide rail 504 are arranged in parallel, and the vertical moving slide rail 502 is arranged on the end of the horizontal moving slide rail. The two vertical movable sliding rails 502 are arranged on the suspension in parallel, and the ends of the suspension movable sliding rail 505 are respectively arranged on the two vertical movable sliding rails 502; the horizontal moving slide rail comprises a horizontal moving lower slide rail 503 and a horizontal moving upper slide rail 504 which are arranged in parallel, and the suspension is arranged on the end part of the horizontal moving slide rail.

Milling rotor 501 is mounted on mobile suspension rails 505, and the positional movement of milling rotor 501 first requires moving mobile suspension rails 505 in a horizontal direction to a specified position. The left-right position adjustment is then performed under the action of the milling rotor moving lead screw 506. The moving device 5 is mounted in the frame of the vehicle body by means of the horizontally moving lower slide 503 and the horizontally moving upper slide 504, i.e. it functions as a support for the milling rotor and is also able to move in the horizontal direction to adjust the milling position. The suspension moving guide rail 505 is driven to move by the vertical moving slide rail 502 in the vertical direction.

Referring to fig. 6, the milled material conveying device 6 includes a belt apron 601, a belt motor 602, a belt 603, and a belt support 604. The conveyer 603 is supported on the conveyer bracket 604, the conveyer baffles 601 are disposed on both sides of the conveyer 603, and the conveyer motor 602 is disposed on the conveyer baffles 601.

After the milled material is completely sucked, the milled material is conveyed to the mixing pot through the conveying belt 603, and the milled material conveying device 6 is arranged between the mixing device 3 and the negative pressure material sucking device 4, and a certain height difference can exist between the two devices. For example, the milled material conveying device 6 is arranged at the end of the microwave heating and stirring device 3 lower than the end of the negative pressure material suction device 4. The height of the conveying belt 603 is convenient for receiving recycled materials below the settling tank, and the recycled materials are convenient for pouring into the stirring pot above the stirring pot. The stirring pot is provided with a baffle at the beginning to prevent the reclaimed materials from splashing.

A working method of a feeding type microwave heating maintenance vehicle based on automatic milling and planning of a pavement pit slot comprises the following steps:

after the milling rotor moving device 5 moves to a specified position, the milling rotor 501 mills a road surface damaged part, and after milling is completed, the milling rotor 501 moves away;

the negative pressure material suction device 4 starts to work and sucks and sweeps the milled material which is milled down by the sucking disc 405;

milling materials enter a negative pressure material suction device 4, are dedusted by a dedusting box, enter a microwave heating and stirring pot 3 through a milling material conveying device 6, and are subjected to microwave heating and stirring;

and after the reclaimed materials are completely absorbed, conveying the reclaimed materials heated and stirred by the microwave to the stirring pot, and spraying the viscous layer oil into the pit trough by the viscous layer oil spraying device 2.

The viscous layer oil spraying device 2 comprises a viscous layer oil tank 201 and a viscous layer oil pipe 202; the viscous layer oil spray head 203 is connected with the viscous layer oil tank 201 through the viscous layer oil pipe 202. The viscous layer oil spray head 203 is connected with the viscous layer oil tank 201 through the viscous layer oil pipe 202. Preferably, the layer oil spray head 203 is arranged on the milling rotor moving device 5 between the milling machine 501 and the suction cup 405 that adsorbs the aggregate.

In conclusion, the device is reasonable in structure and can be used for repairing the asphalt pavement diseases.

Except the moving device, all the working devices are arranged on the chassis vehicle according to the requirements of the repairing process. Considering that the milling rotor of the maintenance vehicle needs to move along three directions of the length and the width of the pit and the milling depth in the process of milling the pit, the maintenance vehicle can move in all directions by adopting a sliding rail mode. The milling rotor moving device is connected with a frame arranged on the chassis vehicle, so that the milling rotor moving device has the function of supporting the milling rotor and the function of a horizontal sliding rail. The milling rotor is fixed on a suspended movable sliding rail, and the horizontal movement is realized through a horizontal movement upper sliding rail and a horizontal movement lower sliding rail which are connected with the frame. The milling machine is vertically moved by vertically moving the sliding rails, and when the milling machine and the sliding rails are moved to the designated positions, the milling machine is moved leftwards and rightwards by suspending the screw rods in the movable sliding rails. The movement in three directions enables the milling rotor to complete the milling operation according to the pit repair area. The recycled materials after milling have large content of dust, the recycled materials are greatly influenced to the recycling of the asphalt pavement, and the recycled materials are dedusted when the recycled materials are sucked by the negative pressure material sucking device, so that the recycled materials are conveniently used, the ground dust is reduced, and the environment is protected. The material suction pipe adopts a corrugated wear-resistant metal hose, has high degree of freedom, is convenient to move and wear-resistant, and can completely suck and sweep the milled materials in the pit slot. After dust fall and collection in the settling tank, the recovered aggregate after dust removal is conveyed to a microwave heating stirring pot through a belt conveyor for heating and stirring. The belt conveyor is arranged below the settling tank and above the stirring pot, so that material receiving and discharging are convenient, the elevations of the settling tank and the stirring pot can be adjusted according to specific conditions, and the recovered milled materials are guaranteed to smoothly enter the microwave heating stirring device. And (3) spraying the viscous layer oil on the four walls and the bottom of the cleaned pit groove by using a viscous layer oil spray head while heating and stirring, and preparing for paving and rolling the regenerated asphalt mixture.

It should be noted that, in the description of the present invention, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is considered as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided would be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of subject matter that is disclosed herein is not intended to forego such subject matter, nor should the applicant consider that such subject matter is not considered part of the disclosed subject matter.