Special asphalt recovery device

Abstract

The utility model discloses a special asphalt recovery device, which comprises a feeding mechanism, a discharging mechanism, a conveying mechanism, a conveying mechanism, a discharging mechanism and a control mechanism, wherein the feeding mechanism is used for conveying asphalt into the recovery device for processing to reduce dust flying caused by manual throwing; and the recycling mechanism is mounted at one end of the feeding frame in the feeding mechanism and is used for crushing, screening and recycling the asphalt. Crushed asphalt enters the screening barrel through the discharging hopper, small-particle asphalt falls to the bottom of the recycling box through meshes of the screening barrel under the driving of the first spiral blade in the screening barrel, large-particle asphalt is pushed to the front end of the screening barrel, and at the moment, the small-particle asphalt falls to the bottom of the recycling box through the meshes of the screening barrel. And the lifting mechanism lifts large-particle asphalt again to the crushing box for secondary crushing through a material guide pipe by virtue of a second spiral blade, so that the size uniformity of the finally recycled asphalt particles is ensured, the problem that large and small particles are mixed due to non-screening of a traditional device is avoided, and the stirring uniformity is remarkably improved during secondary utilization.

Description

Technical Field

[0001] This utility model relates to the field of asphalt recycling technology, and in particular to a special asphalt recycling device. Background Technology

[0002] Specialty asphalt is an asphalt material processed using special techniques, possessing excellent properties such as high-temperature resistance, low-temperature resistance, aging resistance, and fatigue resistance. It is commonly used in the construction and maintenance of heavy-duty transportation facilities such as highways, bridges, and airports, effectively improving road surface service life and driving safety. Compared to ordinary asphalt, specialty asphalt has higher requirements in terms of component ratios, production processes, and performance indicators to meet the specific engineering and environmental conditions required for its use.

[0003] For example, patent CN218147626U discloses an innovative asphalt recycling device specifically designed for recycling large asphalt pavement blocks during road repair. This device utilizes a unique dual-crushing roller design, allowing large asphalt blocks to pass between the two rollers, with the drill bit crushing them in a Z-shaped path. This effectively adapts to the adhesive properties of asphalt and reduces crushing pressure. Furthermore, the device can break large asphalt blocks into smaller pieces, facilitating recycling and reuse, while also reducing dust generation and improving work efficiency and environmental friendliness. However, the crushing process still presents dust problems, which can affect the health of workers. Additionally, the lack of a screening function during crushing leads to the mixing of asphalt blocks of varying sizes, resulting in uneven mixing during secondary reuse. Utility Model Content

[0004] One objective of this invention is to provide a special asphalt recycling device. This invention addresses the problem mentioned in the background that dust is generated during the crushing process, which can affect the health of workers. Furthermore, the lack of a screening function during crushing leads to the mixing of asphalt lumps of varying sizes, resulting in uneven mixing during secondary reuse.

[0005] A special asphalt recycling device according to an embodiment of the present invention includes:

[0006] The feeding mechanism is used to transport asphalt to the recycling unit for processing, thereby reducing dust pollution caused by manual loading.

[0007] A recycling mechanism, installed at one end of the feeding frame in the feeding mechanism, is used to crush, screen, and recycle asphalt. The recycling mechanism includes a recycling box and a crushing box fixed at the feed inlet above the recycling box. Crushing wheels are symmetrically rotated on one side inside the crushing box. The two crushing wheels rotate synchronously through a first transmission assembly. The crushing wheels are fixedly installed at the output end of a second drive device. A feeding hopper is fixedly installed at the bottom of the crushing box. A screening cylinder is fixedly installed at the bottom of the feeding hopper. A first spiral blade is rotatably installed inside the screening cylinder through a first rotating shaft. A second transmission assembly is installed between the first rotating shaft and the crushing wheels.

[0008] The lifting mechanism, installed at the front end of the screening cylinder in the recycling mechanism, is used to further crush large particles of asphalt.

[0009] A dust suppression mechanism is installed above the crushing box in the recycling mechanism to suppress dust during the recycling of special asphalt. The dust suppression mechanism includes a dustproof shell fixed to the top of the recycling box and a water pump fixed to the top of the recycling box. A diversion plate is fixedly installed at the upper end inside the dustproof shell, and atomizing nozzles are fixedly installed at the bottom of the diversion plate. A water pipe is fixedly installed between the diversion plate and the water pump.

[0010] The feeding mechanism, installed inside the recycling bin in the recycling mechanism, is used to transport the recycled special asphalt outwards.

[0011] Preferably, the feeding mechanism includes a feeding frame, and a first conveyor belt is internally driven by the feeding frame. The first conveyor belt conveys asphalt through a first driving device, and limit strips are fixedly provided on the outer side of the first conveyor belt.

[0012] Preferably, both the first transmission component and the second transmission component consist of pulleys and belts.

[0013] Preferably, guide plates are symmetrically fixed at the upper end of the crushing box, and the guide plates are located above the crushing wheel.

[0014] Preferably, a power distribution cabinet is fixedly installed on the outside of the recycling bin.

[0015] Preferably, the lifting mechanism includes a lifting pipe fixed to the end of the screening cylinder, a second spiral blade is rotatably arranged inside the lifting pipe via a second rotating shaft, the second rotating shaft is fixedly arranged at the output end of the third driving device, and a guide pipe is fixedly arranged between the lifting pipe and the crushing box.

[0016] Preferably, the inlet of the dustproof shell is located at one end of the first conveyor belt in the feeding mechanism.

[0017] Preferably, the feeding mechanism includes a feeding frame installed below the screening cylinder, and the feeding frame has a second conveyor belt internally driven, which is driven by a fourth driving device.

[0018] The beneficial effects of this utility model are:

[0019] This invention effectively avoids the problem of uneven mixing caused by particle mixing through its recycling and lifting mechanisms. In use, special asphalt is conveyed to the crushing box by the feeding mechanism and is initially crushed by symmetrically arranged crushing wheels. The two crushing wheels rotate synchronously through the first transmission component, forming a squeezing and shearing effect on the asphalt blocks, improving crushing efficiency. The crushed asphalt enters the screening cylinder through the feeding hopper. Driven by the first spiral blade inside the screening cylinder, small particles of asphalt fall through the mesh of the screening cylinder to the bottom of the recycling box, while large particles of asphalt are pushed to the front end of the screening cylinder. At this time, the lifting mechanism lifts the large particles of asphalt back to the crushing box through the guide pipe via the second spiral blade for secondary crushing, ensuring that the final recycled asphalt particles are of uniform size. This avoids the problem of mixing of large and small particles due to the lack of screening in traditional devices, thus significantly improving the uniformity of mixing during secondary use.

[0020] This utility model effectively avoids the problems of dust and health hazards caused by manual feeding by setting up a feeding mechanism and a dust suppression mechanism. In use, the feeding mechanism transports asphalt to the recycling device through the feeding rack and the first conveyor belt, reducing the dust caused by manual feeding. At the same time, the dust suppression mechanism sprays water mist evenly on the crushing process through a dustproof shell and a water pump-formed atomizing nozzle system above the crushing box, effectively suppressing the generation of dust. In addition, the diversion plate ensures that the water mist is evenly distributed, further improving the dust suppression effect. This not only reduces the pollution of the working environment, but also effectively protects the health of the workers.

[0021] This invention effectively avoids the problem of low efficiency in manual handling by setting up a feeding mechanism. In use, qualified asphalt particles after being screened by the screening cylinder fall directly to the feeding mechanism at the bottom of the recycling box. The second conveyor belt in the feeding frame is driven by the fourth drive device to continuously transport the recycled asphalt particles to the designated collection point, realizing an efficient and smooth asphalt recycling and reuse process. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a three-dimensional structural diagram of one side of a special asphalt recycling device proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of a special asphalt recycling device proposed in this utility model.

[0025] Figure 3 This is a schematic diagram of the transmission component structure of a special asphalt recycling device proposed in this utility model;

[0026] Figure 4 This is a cross-sectional structural diagram of a special asphalt recycling device proposed in this utility model;

[0027] In the diagram: 1. Feeding mechanism; 101. Feeding frame; 102. First conveyor belt; 103. First drive device; 104. Limiting bar; 2. Recycling mechanism; 201. Recycling box; 202. Crushing box; 203. Crushing wheel; 204. First transmission assembly; 205. Second drive device; 206. Guide plate; 207. Discharge hopper; 208. Screening cylinder; 209. First rotating shaft; 210. First spiral blade; 211. 3. Second transmission assembly; 4. Power distribution cabinet; 5. Lifting mechanism; 6. Lifting pipe; 7. Second rotating shaft; 8. Second spiral blade; 9. Third drive device; 10. Guide pipe; 11. Dust suppression mechanism; 12. Dustproof shell; 13. Diverter plate; 14. Atomizing nozzle; 15. Water pump; 16. Water pipe; 17. Feeding mechanism; 18. Feeding rack; 19. Second conveyor belt; 20. Fourth drive device. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0029] refer to Figure 1-4 A special asphalt recycling device, comprising:

[0030] The feeding mechanism 1 is used to transport asphalt to the recycling device for processing, so as to reduce dust caused by manual loading. The feeding mechanism 1 includes a feeding frame 101, and a first conveyor belt 102 is internally driven in the feeding frame 101. The first conveyor belt 102 transports asphalt through a first drive device 103. Limiting strips 104 are fixedly installed on the outer side of the first conveyor belt 102. The feeding mechanism transports asphalt to the recycling device through the feeding frame and the first conveyor belt, reducing dust caused by manual loading. The limiting strips (104) on the outer side of the first conveyor belt can prevent asphalt from slipping and ensure continuous and stable feeding.

[0031] The recycling mechanism 2, installed at one end of the feeding frame 101 in the feeding mechanism 1, is used to crush, screen, and recycle asphalt. The recycling mechanism 2 includes a recycling box 201 and a crushing box 202 fixed at the feed inlet above the recycling box 201. Crushing wheels 203 are symmetrically rotatably arranged on one side inside the crushing box 202. The two crushing wheels 203 rotate synchronously through a first transmission assembly 204. The crushing wheels 203 are fixedly installed at the output end of the second drive device 205. A discharge hopper 207 is fixedly installed at the bottom of the crushing box 202, and a screening cylinder 208 is fixedly installed at the bottom of the discharge hopper 207. Inside the 8, a first spiral blade 210 is rotatably mounted via a first rotating shaft 209. A second transmission assembly 211 is installed between the first rotating shaft 209 and the crushing wheel 203. During use, special asphalt is conveyed to the crushing box through the feeding mechanism and then initially crushed by symmetrically arranged crushing wheels. The two crushing wheels rotate synchronously through the first transmission assembly, forming a squeezing and shearing effect on the asphalt blocks, thereby improving the crushing efficiency. The crushed asphalt enters the screening cylinder through the feeding hopper. Driven by the first spiral blade inside the screening cylinder, small particles of asphalt fall through the mesh of the screening cylinder to the bottom of the recovery box, while large particles of asphalt are pushed to the front end of the screening cylinder.

[0032] The lifting mechanism 4 is installed at the front end of the screening cylinder 208 in the recycling mechanism 2. It is used to re-crush large particles of asphalt. The lifting mechanism 4 includes a lifting pipe 401 fixed to the end of the screening cylinder 208. The lifting pipe 401 has a second spiral blade 403 rotatably mounted inside it via a second rotating shaft 402. The second rotating shaft 402 is fixedly mounted at the output end of the third drive device 404. A guide pipe 405 is fixedly mounted between the lifting pipe 401 and the crushing box 202. The lifting mechanism uses the second spiral blade to lift the large particles of asphalt back to the crushing box via the guide pipe for secondary crushing, ensuring that the final recycled asphalt particles are of uniform size and avoiding the problem of mixed large and small particles caused by the lack of screening in traditional devices.

[0033] The dust suppression mechanism 5 is installed above the crushing box 202 in the recycling mechanism 2 to suppress dust during the recycling of special asphalt. The dust suppression mechanism 5 includes a dustproof shell 501 fixed to the top of the recycling box 201 and a water pump 504 fixed to the top of the recycling box 201. A diversion plate 502 is fixedly installed at the upper end inside the dustproof shell 501, and atomizing nozzles 503 are fixedly installed at the bottom of the diversion plate 502. A water pipe 505 is fixedly installed between the diversion plate 502 and the water pump 504. The dust suppression mechanism sprays water mist evenly during the crushing process through the atomizing nozzle system formed by the dustproof shell and the water pump above the crushing box, effectively suppressing the generation of dust. In addition, the diversion plate ensures that the water mist is evenly distributed, further improving the dust suppression effect and reducing the pollution of the working environment.

[0034] The feeding mechanism 6 is installed inside the recycling bin 201 of the recycling mechanism 2 and is used to transport the recycled special asphalt outward. The feeding mechanism 6 includes a feeding frame 601 installed below the screening cylinder 208. The feeding frame 601 is internally equipped with a second conveyor belt 602. The second conveyor belt 602 is driven by a fourth drive device 603. In use, qualified asphalt particles after being screened by the screening cylinder fall directly to the feeding mechanism at the bottom of the recycling bin. The second conveyor belt inside the feeding frame is driven by the fourth drive device to continuously transport the recycled asphalt particles outward to the designated collection point.

[0035] Example 1: The first transmission component 204 and the second transmission component 211 are both composed of pulleys and belts to ensure efficient power transmission. The upper part of the crushing box 202 is symmetrically and fixedly provided with guide plates 206 to accurately guide the material into the crushing wheel 203 and avoid deviation and blockage. The guide plates 206 are located above the crushing wheel 203 to accurately guide the material into the crushing wheel 203 and avoid deviation and blockage. The outside of the recycling box 201 is fixedly provided with a power distribution cabinet 3.

[0036] Example 2: The feed inlet of the dustproof shell 501 is located at one end of the first conveyor belt 102 in the feeding mechanism 1, which effectively blocks the dust generated during the crushing process from spreading outward and greatly reduces dust pollution at the construction site.

[0037] Working principle: First, the feeding mechanism 1 transports asphalt to the recycling device via the feeding frame 101 and the first conveyor belt 102, reducing dust caused by manual feeding. The limiting strip 104 on the outside of the first conveyor belt 102 prevents asphalt from slipping, ensuring continuous and stable feeding. After entering the recycling mechanism 2, the asphalt is initially crushed by the symmetrical crushing wheels 203 in the crushing box 202. The crushing wheels rotate synchronously through the first transmission assembly 204 (composed of pulleys and belts), forming a squeezing and shearing action on the asphalt blocks, improving crushing efficiency. The crushed asphalt enters the screening cylinder 208 through the discharge hopper 207. Driven by the first spiral blade 210, the small particles of asphalt fall through the mesh of the screening cylinder into the recycling box 20. At the bottom, large asphalt particles are pushed to the front end of the screening cylinder. The lifting mechanism 4 lifts the large asphalt particles back to the crushing box through the guide pipe 405 via the lifting pipe 401 and the second spiral blade 403 for secondary crushing, ensuring that the final recovered asphalt particles are of uniform size. The dust suppression mechanism 5 sprays water mist evenly on the crushing process through the atomizing nozzle system formed by the dust cover 501 and the water pump 504 above the crushing box, effectively suppressing dust generation. The feed inlet of the dust cover 501 is located at one end of the first conveyor belt 102, further blocking the spread of dust. Finally, the feeding mechanism 6 continuously transports the recovered asphalt particles to the designated collection point through the feeding frame 601 and the second conveyor belt 602, achieving efficient recycling.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A special asphalt recycling device, characterized in that, include: The feeding mechanism (1) is used to transport asphalt to the recycling unit for processing, so as to reduce dust caused by manual feeding. The recycling mechanism (2) is installed at one end of the feeding frame (101) in the feeding mechanism (1) and is used to crush, screen and recycle asphalt. The recycling mechanism (2) includes a recycling box (201) and a crushing box (202) fixed at the feed inlet above the recycling box (201). The crushing box (202) has a crushing wheel (203) symmetrically rotated on one side. The two crushing wheels (203) are synchronously rotated through a first transmission component (204). The crushing wheel (203) is fixedly installed at the output end of the second drive device (205). The bottom of the crushing box (202) is fixedly installed with a feeding hopper (207). The bottom of the feeding hopper (207) is fixedly installed with a screening cylinder (208). The screening cylinder (208) has a first spiral blade (210) rotatably installed inside through a first rotating shaft (209). A second transmission component (211) is installed between the first rotating shaft (209) and the crushing wheel (203). The lifting mechanism (4) is installed at the front end of the screening cylinder (208) in the recycling mechanism (2) to achieve the re-crushing of large particles of asphalt; A dust suppression mechanism (5) is installed above the crushing box (202) in the recycling mechanism (2) to perform dust suppression treatment when recycling special asphalt. The dust suppression mechanism (5) includes a dustproof shell (501) fixed to the top of the recycling box (201) and a water pump (504) fixed to the top of the recycling box (201). A diversion plate (502) is fixedly installed at the upper end inside the dustproof shell (501). Atomizing nozzles (503) are fixedly installed at the bottom of the diversion plate (502). A water pipe (505) is fixedly installed between the diversion plate (502) and the water pump (504). The feeding mechanism (6) is installed inside the recycling bin (201) of the recycling mechanism (2) and is used to transport the recycled special asphalt outward.

2. The special asphalt recycling device according to claim 1, characterized in that, The feeding mechanism (1) includes a feeding frame (101), and a first conveyor belt (102) is internally driven in the feeding frame (101). The first conveyor belt (102) conveys asphalt through a first driving device (103). Limiting strips (104) are fixedly provided on the outer side of the first conveyor belt (102).

3. The special asphalt recycling device according to claim 1, characterized in that, Both the first transmission assembly (204) and the second transmission assembly (211) consist of pulleys and belts.

4. A special asphalt recycling device according to claim 1, characterized in that, The upper part of the crushing box (202) is symmetrically fixed with guide plates (206), and the guide plates (206) are located above the crushing wheel (203).

5. A special asphalt recycling device according to claim 1, characterized in that, A power distribution cabinet (3) is fixedly installed on the outside of the recycling bin (201).

6. A special asphalt recycling device according to claim 1, characterized in that, The lifting mechanism (4) includes a lifting pipe (401) fixed to the end of the screening cylinder (208). A second spiral blade (403) is rotatably arranged inside the lifting pipe (401) via a second rotating shaft (402). The second rotating shaft (402) is fixedly arranged at the output end of the third driving device (404). A guide pipe (405) is fixedly arranged between the lifting pipe (401) and the crushing box (202).

7. A special asphalt recycling device according to claim 1, characterized in that, The inlet of the dust cover (501) is located at one end of the first conveyor belt (102) in the feeding mechanism (1).

8. A special asphalt recycling device according to claim 1, characterized in that, The feeding mechanism (6) includes a feeding frame (601) installed below the screening cylinder (208), and the feeding frame (601) is internally equipped with a second conveyor belt (602), which is driven by a fourth driving device (603).

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