A mechanical crushing and recycling device for asphalt pavement

By using an eccentric disc to drive the reciprocating motion of the screen plate and a water pump spray in the asphalt recycling device, the problem of dust dispersion is solved, achieving efficient and continuous dust removal and providing pure asphalt raw materials.

CN224280942UActive Publication Date: 2026-05-26SHANDONG GAOSU LOAD & BRIDGE MAINTENANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG GAOSU LOAD & BRIDGE MAINTENANCE CO LTD
Filing Date
2025-04-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In existing technologies, the dust removal effect during asphalt recycling is poor, and the dust is easily dispersed, causing the asphalt surface to be covered again, making it difficult to carry out the dust reduction process continuously and efficiently.

Method used

The dust suppression mechanism utilizes an eccentric disc to drive the screen plate in reciprocating motion, combined with a water pump spraying water mist to suppress dust, and an anti-clogging mechanism to clean the spray plate blockage, ensuring continuous and efficient dust removal.

Benefits of technology

It effectively prevents dust from re-attaching to the asphalt, provides purer asphalt raw materials, improves the cleanliness of the working environment, and ensures the continuity and efficiency of the dust suppression process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides an asphalt pavement mechanical crushing and recycling device, relating to the field of asphalt recycling technology. It includes a dust suppression mechanism comprising a dust suppression chamber with a screen plate inside. The interior of the dust suppression mechanism slides in contact with the top of the screen plate, and a connecting plate is provided at the top of the screen plate. When the motor is started, the eccentric disc begins to rotate. During this rotation, external forces are indirectly applied to the two fixed columns. This allows the side plates, cross plates, and bottom connecting plate to reciprocate synchronously. Since the connecting plate is mounted on the screen plate, the screen plate uses this reciprocating motion to remove dust from the asphalt. During dust removal, a water pump is started to introduce water from the water tank into the spray chamber, which is mounted on the screen plate. Finally, under the pressure of the water pump, water is sprayed from the spray chamber, thus suppressing the dust and preventing it from re-attaching to the asphalt.
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Description

Technical Field

[0001] This utility model relates to the field of asphalt recycling technology, and in particular to an asphalt pavement mechanical crushing and recycling device. Background Technology

[0002] Asphalt is a dark brown, complex mixture composed of hydrocarbons of varying molecular weights and their non-metallic derivatives, existing in liquid, semi-solid, or solid states. It possesses excellent adhesion, water resistance, and corrosion resistance. In the construction industry, it is commonly used for road paving. When mixed with aggregates, it forms asphalt concrete, which provides roads with wear resistance, pressure resistance, and other properties, ensuring smooth vehicle travel.

[0003] In existing technologies, the dust removal effect in traditional asphalt recycling dust suppression processes is unsatisfactory. The mechanical components lack coordination, failing to generate comprehensive and effective shaking and screening of the asphalt. When the asphalt enters the processing flow, the fine and lightweight dust particles are released into the air, resulting in a large amount of airborne dust. This significantly increases the probability of secondary dust accumulation on the asphalt surface. The asphalt, which has just undergone initial cleaning, is instantly covered with another layer of dust. The already incomplete dust removal results are ruthlessly undermined, making subsequent dust suppression processes even more difficult. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies and provide a mechanical crushing and recycling device for asphalt pavement.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an asphalt pavement mechanical crushing and recycling device, comprising: a dust suppression mechanism, a crushing mechanism at the top of the dust suppression mechanism, an anti-clogging mechanism on the inner wall of the dust suppression mechanism, the dust suppression mechanism including a dust suppression chamber, a sieve plate inside the dust suppression chamber, the interior of the dust suppression mechanism slidingly contacting the top of the sieve plate, a connecting plate at the top of the sieve plate, a horizontal plate at the top of the connecting plate, the top of the connecting plate fixedly connected to the bottom side of the horizontal plate, a side plate at the top of the horizontal plate, the top side of the horizontal plate fixedly connected to the bottom end of the side plate, a fixing column at the bottom of one side of the side plate, the bottom of one side of the side plate fixedly connected to the top of the fixing column, an eccentric disk at one side of the fixing column, and a side of the fixing column rotatably contacting the outer side of the eccentric disk.

[0006] In a preferred embodiment, the crushing mechanism includes a crushing chamber, the inner wall of which is provided with a crushing roller, the inner wall of which is rotatably connected to the outer side of one end of the crushing roller, and a belt is provided on the outer side of one end of the crushing roller, which is drively connected to the inner side of the belt.

[0007] In a preferred embodiment, a second motor is provided at one end of the crushing roller, and one end of the crushing roller is fixedly connected to the output end of the second motor. One side of the motor is fixedly connected to one side of the crushing chamber, and the bottom end of the crushing chamber is fixedly connected to the top end of the dust settling chamber.

[0008] In a preferred embodiment, the anti-clogging mechanism includes a squeezing rod, one end of which is provided with a clearance rod. One end of the squeezing rod is fixedly connected to one side of the clearance rod. One side of the clearance rod is provided with a spring plate, which is fixedly connected to one end of the spring plate. The other end of the spring plate is provided with a spray cavity, which is slidably connected to the inner wall of the spray cavity. The outer side of the clearance rod is slidably connected to the inner wall of the dust collection chamber.

[0009] In a preferred embodiment, the inner wall of the eccentric disk is fixedly connected to the output end of the first motor, one end of the first motor is provided with a housing, one end of the first motor is fixedly connected to one end of the housing, and the bottom end of the housing is fixedly connected to the top end of the dust collection chamber.

[0010] In a preferred embodiment, the bottom end of the sieve plate is slidably connected to the interior of the dust settling chamber, and a collection box is provided inside the dust settling chamber. The interior of the dust settling chamber and the outside of the collection box are slidably connected through the sieve plate.

[0011] In a preferred embodiment, one side of the sieve plate is fixedly connected to one end of the spray chamber, a spray plate is provided inside the spray chamber, the inside of the spray chamber is fixedly connected to the outside of the spray plate, a water pump is provided on one side of the spray chamber, one side of the spray chamber is fixedly connected to one end of the water pump, a water tank is provided on one side of the water pump, one side of the water pump is fixedly connected to one side of the water tank, one side of the water tank is fixedly connected to one side of the dust settling chamber, the inner wall of the dust settling chamber is fixedly connected through one end of the water pump, and one side of the water pump is fixedly connected to one side of the water tank.

[0012] In a preferred embodiment, the dust collection chamber is provided with a guide plate inside, and one end of the guide plate is fixedly connected to the interior of the dust collection chamber. The dust collection chamber is also provided with a conveying device inside, and one side of the conveying device is fixedly connected to the interior of the dust collection chamber.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. When the motor is started, the eccentric disc begins to rotate. During the rotation, external forces are intermittently applied to the two fixed columns. In this way, the side plate, the cross plate, and the bottom connecting plate can move back and forth synchronously. Since the connecting plate is installed on the screen plate, the screen plate uses the reciprocating motion to remove dust from the asphalt. During the dust removal process, the water pump needs to be started to introduce water from the water tank into the spray chamber, which is installed on the screen plate. Finally, under the pressure of the water pump, water is sprayed out from the spray plate to reduce the dust and prevent dust from covering the asphalt again.

[0015] 2. Pushing the extrusion rod causes the obstacle removal rod to slide inside the spray chamber. During the sliding process, the obstacle removal rod gradually passes through the spray plate, thereby pushing out the internal blockage and restoring the spray plate to normal working condition. This avoids the dust suppression effect being weakened due to the spray plate being blocked, and ensures the continuity and efficiency of the dust suppression process in asphalt recycling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an asphalt pavement mechanical crushing and recycling device provided by this utility model.

[0017] Figure 2 This is a rear view structural diagram of the dust suppression mechanism component of an asphalt pavement mechanical crushing and recycling device provided by this utility model.

[0018] Figure 3 This is a side sectional view of the dust suppression mechanism component of an asphalt pavement mechanical crushing and recycling device provided by this utility model.

[0019] Figure 4 This utility model provides a schematic diagram of the disassembled structure of the dust suppression mechanism component of an asphalt pavement mechanical crushing and recycling device.

[0020] Figure 5 A schematic diagram of the anti-clogging mechanism components of an asphalt pavement mechanical crushing and recycling device provided by this utility model.

[0021] Figure 6 A schematic diagram of the anti-clogging mechanism components of an asphalt pavement mechanical crushing and recycling device provided by this utility model.

[0022] Legend:

[0023] 1. Dust suppression mechanism; 11. Dust suppression bin; 12. Screen plate; 13. Connecting plate; 14. Horizontal plate; 15. Side plate; 16. Fixed column; 17. Eccentric disc; 18. Motor 1; 19. Housing; 110. Spray chamber; 111. Spray plate; 112. Water tank; 113. Water pump; 114. Collection box; 115. Guide plate; 116. Conveying equipment;

[0024] 2. Crushing mechanism; 21. Crushing chamber; 22. Crushing roller; 23. Motor II; 24. Belt;

[0025] 3. Anti-clogging mechanism; 31. Compression rod; 32. Obstacle removal rod; 33. Spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] like Figures 1-6As shown, this utility model provides a technical solution: an asphalt pavement mechanical crushing and recycling device, comprising: a dust suppression mechanism 1, a crushing mechanism 2 at the top of the dust suppression mechanism 1, an anti-clogging mechanism 3 on the inner wall of the dust suppression mechanism 1, the dust suppression mechanism 1 including a dust suppression chamber 11, a screen plate 12 inside the dust suppression chamber 11, the interior of the dust suppression mechanism 1 slidingly contacting the top of the screen plate 12, a connecting plate 13 at the top of the screen plate 12, a horizontal plate 14 at the top of the connecting plate 13, the top of the connecting plate 13 fixedly connected to the bottom side of the horizontal plate 14, a side plate 15 at the top side of the horizontal plate 14, the top side of the horizontal plate 14 fixedly connected to the bottom end of the side plate 15, and a fixed... The fixed column 16 has one bottom side of the side plate 15 fixedly connected to the top of the fixed column 16. An eccentric disk 17 is provided on one side of the fixed column 16, and the side of the fixed column 16 rotatably contacts the outer side of the eccentric disk 17. The inner wall of the eccentric disk 17 is fixedly connected through to the output end of the motor 18. A housing 19 is provided at one end of the motor 18, and one end of the motor 18 is fixedly connected to one end of the housing 19. The bottom end of the housing 19 is fixedly connected to the top of the dust settling chamber 11. The bottom end of the sieve plate 12 is slidably connected to the interior of the dust settling chamber 11. A collection box 114 is provided inside the dust settling chamber 11, and the interior of the dust settling chamber 11 is slidably connected through to the outer side of the collection box 114. One side of the sieve plate 12 is connected to the spray chamber 11. One end of the nozzle is fixedly connected to the nozzle. A spray plate 111 is installed inside the spray chamber 110. The inside of the spray chamber 110 is fixedly connected to the outside of the spray plate 111. A water pump 113 is installed on one side of the spray chamber 110. One side of the spray chamber 110 is fixedly connected to one end of the water pump 113. A water tank 112 is installed on one side of the water pump 113. One side of the water pump 113 is fixedly connected to one side of the water tank 112. One side of the water tank 112 is fixedly connected to one side of the dust settling chamber 11. The inner wall of the dust settling chamber 11 is fixedly connected through one end of the water pump 113. One side of the water pump 113 is fixedly connected to one side of the water tank 112. A guide plate 115 is installed inside the dust settling chamber 11. The inside of the dust settling chamber 11 is connected to the guide plate 115. One end of 5 is fixedly connected. The dust collection chamber 11 is equipped with a conveying device 116. The interior of the dust collection chamber 11 is fixedly connected to one side of the conveying device. The crushing mechanism 2 includes a crushing chamber 21. The inner wall of the crushing chamber 21 is equipped with a crushing roller 22. The inner wall of the crushing chamber 21 is rotatably connected to the outer side of one end of the crushing roller 22. A belt 24 is provided on the outer side of one end of the crushing roller 22. The outer side of one end of the crushing roller 22 is connected to the inner side of the belt 24 for transmission. A motor 23 is provided on one end of the crushing roller 22. One end of the crushing roller 22 is fixedly connected to the output end of the motor 23. One side of the motor is fixedly connected to one side of the crushing chamber 21. The bottom end of the crushing chamber 21 is fixedly connected to the top end of the dust collection chamber 11.

[0029] In this embodiment, the asphalt pavement mechanical crushing and recycling device requires the asphalt to be crushed before it can be dissolved after recycling. Therefore, the asphalt is put into the crushing chamber 21. At this time, the motor 23 is started to drive the belt 24, and then the two crushing rollers 22 start to crush the asphalt. As the asphalt is crushed, it will enter the dust collection chamber 11. A guide plate 115 is designed below the crushing rollers 22. Naturally, the asphalt falls on the guide plate 115 and then slides down the screen at the slope of the guide plate 115.

[0030] By starting the motor 18, the eccentric disk 17 begins to rotate. During the rotation, external forces are indirectly applied to the two fixed columns 16. Since the eccentric disk 17 is designed with two fixed columns 16, the side plate 15, the horizontal plate 14, and the bottom connecting plate 13 can move back and forth synchronously in this way. The connecting plate 13 is naturally installed on the screen plate 12. The screen plate 12 uses the reciprocating motion to remove dust from the asphalt. During the dust removal process, the water pump 113 needs to be started to introduce water from the water tank 112 into the spray chamber 110. The spray chamber 110 is installed on the screen plate 12. Finally, under the pressure of the water pump 113, water is sprayed out from the spray plate 111, thereby reducing the dust removed and preventing dust from covering the asphalt again, thus providing purer raw materials for subsequent asphalt processing.

[0031] Furthermore, due to the inclined shape of the screen plate 12, gravity is fully utilized, allowing the asphalt to smoothly slide naturally along the slope with the reciprocating motion of the screen plate 12. A conveying device 116 is designed at the bottom of the screen plate 12 to receive the asphalt and transport it out of the dust collection chamber 11. Finally, a collection box 114 is designed below the screen plate 12 to collect dust, specifically for collecting the dust that is shaken off by the screen plate 12 during the dust removal process. The precise positioning of the collection box 114 ensures comprehensive dust collection, preventing secondary dust re-entrainment inside the equipment or in the working environment, and effectively improving the cleanliness of the working environment.

[0032] Example 2

[0033] like Figures 2-6 As shown, the anti-clogging mechanism 3 includes a squeezing rod 31, one end of which is provided with a barrier removal rod 32. One end of the squeezing rod 31 is fixedly connected to one side of the barrier removal rod 32. One side of the barrier removal rod 32 is provided with a spring piece 33, which is fixedly connected to one end of the spring piece 33. The other end of the spring piece 33 is provided with a spray cavity 110, which is slidably connected to the inner wall of the spray cavity 110. The outer side of the barrier removal rod 32 is slidably connected to the inner wall of the dust settling chamber 11.

[0034] In this embodiment, after a period of use, the spray plate 111 may become clogged with dust. Therefore, by pushing the squeezing rod 31, the obstacle removal rod 32 slides within the spray chamber 110. During the sliding process, the obstacle removal rod 32 gradually passes through the spray plate 111, thereby pushing out the internal blockage and restoring the spray plate 111 to its normal working state. This avoids the dust suppression effect being weakened due to the blockage of the spray plate 111, ensuring the continuity and efficiency of the dust suppression process during asphalt recycling. After cleaning, the external force on the squeezing rod 31 is released, and the spring 33 on one side of the obstacle removal rod 32 will use its own retraction box to synchronously reset the obstacle removal rod 32 and the squeezing rod 31, preparing for the next obstacle removal operation.

[0035] like Figures 1-6 As shown, asphalt is fed into the crushing chamber 21. At this time, the motor 23 is started to drive the belt 24, which in turn causes the two crushing rollers 22 to begin crushing the asphalt. As the asphalt is crushed, it enters the dust collection chamber 11. The motor 18 is started to make the eccentric disk 17 start to rotate. During the rotation, external forces are intermittently applied to the two fixed columns 16. Because the eccentric disk 17 is designed with two fixed columns 16 between it, the side plate 15, the cross plate 14, and the bottom connecting plate 13 can move back and forth synchronously in this way. Naturally, the connecting plate 13 is installed on... On the sieve plate 12, the reciprocating motion of the sieve plate 12 removes dust from the asphalt. During the dust removal process, the water pump 113 is started to introduce water from the water tank 112 into the spray chamber 110, which is installed on the sieve plate 12. Finally, under the pressure of the water pump 113, water is sprayed out from the spray plate 111, thereby suppressing the dust. Finally, a collection box 114 is designed below the sieve plate 12 to collect the dust, specifically for collecting the dust that is dusted off by the sieve plate 12 during the dust removal process. The precise positioning of the collection box 114 ensures comprehensive dust collection.

[0036] By pushing the squeezing rod 31, the obstacle removal rod 32 slides within the spray chamber 110. During the sliding process, the obstacle removal rod 32 gradually passes through the spray plate 111, thereby pushing out the internal blockage and restoring the spray plate 111 to its normal working state. This prevents the dust suppression effect from weakening due to blockage of the spray plate 111, ensuring the continuity and efficiency of the dust suppression process during asphalt recycling. After cleaning, the external force on the squeezing rod 31 is released, and the spring 33 on one side of the obstacle removal rod 32 will use its own retraction box to synchronously reset the obstacle removal rod 32 and the squeezing rod 31.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An asphalt pavement mechanical crushing and recycling device, characterized in that, include: A dust suppression mechanism (1) is provided with a crushing mechanism (2) at its top and an anti-clogging mechanism (3) on its inner wall. The dust suppression mechanism (1) includes a dust suppression chamber (11), and a sieve plate (12) is provided inside the dust suppression chamber (11). The interior of the dust suppression mechanism (1) is in sliding contact with the top of the sieve plate (12). A connecting plate (13) is provided at the top of the sieve plate (12), and a horizontal plate (14) is provided at the top of the connecting plate (13). The top of the plate is fixedly connected to the bottom of the horizontal plate (14). A side plate (15) is provided on the top side of the horizontal plate (14). The top side of the horizontal plate (14) is fixedly connected to the bottom of the side plate (15). A fixing post (16) is provided on the bottom side of one side of the side plate (15). The bottom side of one side of the side plate (15) is fixedly connected to the top of the fixing post (16). An eccentric disk (17) is provided on one side of the fixing post (16). The side of the fixing post (16) is rotatably contacted with the outer side of the eccentric disk (17).

2. The asphalt pavement mechanical crushing and recycling device according to claim 1, characterized in that: The crushing mechanism (2) includes a crushing chamber (21), and a crushing roller (22) is provided on the inner wall of the crushing chamber (21). The inner wall of the crushing chamber (21) is rotatably connected to the outer side of one end of the crushing roller (22). A belt (24) is provided on the outer side of one end of the crushing roller (22), and the outer side of one end of the crushing roller (22) is connected to the inner side of the belt (24) for transmission.

3. The asphalt pavement mechanical crushing and recycling device according to claim 2, characterized in that: One end of the crushing roller (22) is equipped with a second motor (23), one end of the crushing roller (22) is fixedly connected to the output end of the second motor (23), one side of the motor is fixedly connected to one side of the crushing chamber (21), and the bottom end of the crushing chamber (21) is fixedly connected to the top end of the dust settling chamber (11).

4. The asphalt pavement mechanical crushing and recycling device according to claim 3, characterized in that: The anti-clogging mechanism (3) includes a squeezing rod (31), one end of which is provided with a barrier removal rod (32). One end of the squeezing rod (31) is fixedly connected to one side of the barrier removal rod (32). One side of the barrier removal rod (32) is provided with a spring piece (33). One side of the barrier removal rod (32) is fixedly connected to one end of the spring piece (33). The other end of the spring piece (33) is provided with a spray cavity (110). The other end of the spring piece (33) is slidably connected to the inner wall of the spray cavity (110). The outer side of the barrier removal rod (32) is slidably connected to the inner wall of the dust collection chamber (11).

5. The asphalt pavement mechanical crushing and recycling device according to claim 1, characterized in that: The inner wall of the eccentric disk (17) is fixedly connected to the output end of the motor (18). One end of the motor (18) is provided with a housing (19). One end of the motor (18) is fixedly connected to one end of the housing (19). The bottom end of the housing (19) is fixedly connected to the top end of the dust collection chamber (11).

6. The asphalt pavement mechanical crushing and recycling device according to claim 1, characterized in that: The bottom end of the sieve plate (12) is slidably connected to the inside of the dust settling chamber (11). A collection box (114) is provided inside the dust settling chamber (11). The inside of the dust settling chamber (11) and the outside of the collection box (114) are slidably connected through it.

7. The asphalt pavement mechanical crushing and recycling device according to claim 1, characterized in that: One side of the sieve plate (12) is fixedly connected to one end of the spray chamber (110). A spray plate (111) is provided inside the spray chamber (110). The inside of the spray chamber (110) is fixedly connected to the outside of the spray plate (111). A water pump (113) is provided on one side of the spray chamber (110). One side of the spray chamber (110) is fixedly connected to one end of the water pump (113). A water tank (112) is provided on one side of the water pump (113). One side of the water pump (113) is fixedly connected to one side of the water tank (112). One side of the water tank (112) is fixedly connected to one side of the dust settling chamber (11). The inner wall of the dust settling chamber (11) is fixedly connected to one end of the water pump (113). One side of the water pump (113) is fixedly connected to one side of the water tank (112).

8. The asphalt pavement mechanical crushing and recycling device according to claim 1, characterized in that: The dust collection chamber (11) is provided with a guide plate (115) inside, and the interior of the dust collection chamber (11) is fixedly connected to one end of the guide plate (115). The dust collection chamber (11) is provided with a transmission device (116) inside, and the interior of the dust collection chamber (11) is fixedly connected to one side of the transmission device.