Asphalt pavement recycling equipment

Abstract

The utility model discloses asphalt pavement recycling equipment which comprises a double-roller crusher and a feed hopper arranged above a feed port of the double-roller crusher, a support is arranged on one side of the feed hopper, a buffer anti-collision assembly is arranged in the feed hopper, elastic supporting assemblies are symmetrically arranged on the support, and the elastic supporting assemblies are arranged on the support. The utility model relates to the technical field of waste asphalt pavement treatment, the feeding end of an existing double-roller crusher is improved, one side of a feeding hopper is provided with a screening groove, the screening groove is provided with a plurality of elastic supporting assemblies, and the screening groove is provided with a plurality of reinforcing steel bar grid net plates. Recycled asphalt pavement waste materials are preliminarily screened through a reinforcing steel bar grid screen plate in a screening groove, small-particle asphalt waste materials are screened out, and large-size asphalt waste materials further enter a feeding hopper, make contact with a buffering anti-collision assembly in the feeding hopper to be subjected to speed reduction and then evenly enter a double-roller type crusher to be crushed.

Description

Technical Field

[0001] This utility model relates to the field of waste asphalt pavement treatment technology, specifically to an asphalt pavement recycling device. Background Technology

[0002] For asphalt pavement recycling, large milling machines with automatic depth control should be used for milling. The milled waste is directly transported to a transport vehicle via the milling machine's conveyor belt, and then transported to a hot recycling plant for reuse with hot asphalt recycled raw materials. However, the asphalt waste from milling is of varying sizes and shapes, requiring crushing. In existing technologies, the recycled asphalt waste is mostly directly fed into a double-roll crusher for crushing. This results in high impact force on the crushing rollers and a tendency for material to jam, leading to high maintenance costs. In addition, some small particles of asphalt waste also enter the crusher, increasing unnecessary equipment energy consumption. In view of these issues, this case was developed through in-depth research. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an asphalt pavement recycling device, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an asphalt pavement recycling device, comprising a double-roll crusher and a feed hopper positioned above the feed inlet of the double-roll crusher. A support is provided on one side of the feed hopper, and a buffer anti-collision component is provided inside the feed hopper. Elastic support components are symmetrically arranged on the support, and a screening trough is installed on the elastic support components along an inclined direction. A steel grid plate is provided inside the screening trough, with one end of the steel grid plate extending above the feed hopper. A collection hopper is provided at the lower part of the screening trough, and a vibration motor is provided on the side wall of the collection hopper. A guide control mechanism is provided on the side of the screening trough, and a reverse unblocking component is provided on the moving end of the guide control mechanism. The reverse unblocking component is located below the steel grid plate. The steel grid plate includes transverse reinforcing ribs and inclined guide ribs. The transverse reinforcing ribs are fixed at certain intervals inside the screening trough and arranged along an inclined direction, and the inclined guide ribs are arranged at certain intervals on the transverse reinforcing ribs.

[0005] The aforementioned elastic support assembly includes a support, a compression spring, and a connecting seat. The support is fixed on the bracket, the compression spring is disposed on the support, and one end of the connecting seat is connected to the compression spring and the other end is connected to the side wall of the screening trough.

[0006] The aforementioned guiding control mechanism includes a lead screw module, a guide rail, a slider, and a movable seat. A rectangular through slot is provided on the side wall of the screening trough along the inclined direction. The lead screw module is arranged above the rectangular through slot and parallel to the rectangular through slot. The guide rail is symmetrically arranged on both sides of the screening trough and parallel to the rectangular through slot. The slider is slidably mounted on the guide rail. The movable seat is fixed on the slider and connected to the movable end of the lead screw module.

[0007] The aforementioned reverse unblocking assembly includes a fixed shaft, a drive mechanism, and an unblocking component. The fixed shaft is rotatably mounted on a movable seat, the output end of the drive mechanism is connected to the fixed shaft, and the unblocking component is fixed on the fixed shaft and located below the steel grid plate.

[0008] The aforementioned unblocking component includes a fixed seat and a pusher rod. The fixed seat is welded to the outer wall of the fixed shaft, and the pusher rod is arranged in a circular array on the fixed seat with one end inserted into the steel grid plate.

[0009] The aforementioned buffer and anti-collision assembly includes a mounting base and an anti-collision plate. The mounting base is staggered and welded to the inner wall of the feed hopper, and the anti-collision plate is welded to one end of the mounting base along an inclined direction. Beneficial effects

[0010] This utility model provides an asphalt pavement recycling device. It offers the following advantages: This asphalt pavement recycling device improves upon the existing roller crusher's feed end by installing a screening trough on one side of the feed hopper. Utilizing a combination of elastic support components, the screening trough, and a vibrating motor, the recycled asphalt pavement waste is initially screened through a steel grid plate within the screening trough. Small particles of asphalt waste are separated out, while larger particles further enter the feed hopper. There, they are decelerated by contact with a buffer and anti-collision component before being evenly fed into the roller crusher for further crushing. Simultaneously, the screening trough is equipped with a guiding control mechanism and a reverse unblocking component to remove asphalt waste stuck in the steel grid plate, improving the overall operational reliability of the device. The device features a simple structure, stable operation, and effectively increases the efficiency of asphalt pavement recycling and crushing operations. Attached Figure Description

[0011] Figure 1 This is a front view structural diagram of an asphalt pavement recycling device according to the present invention.

[0012] Figure 2 This is a front view cross-sectional structural diagram of an asphalt pavement recycling device according to the present invention.

[0013] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at position a.

[0014] In the diagram: 1. Double roll crusher; 2. Feed hopper; 3. Support frame; 4. Screening trough; 5. Reinforcing steel grating; 6. Collecting hopper; 7. Vibrating motor; 8. Support; 9. Compression spring; 10. Connecting seat; 11. Lead screw module; 12. Guide rail; 13. Slider; 14. Moving seat; 15. Fixed shaft; 16. Drive mechanism; 17. Fixed seat; 18. Push rod; 19. Mounting seat; 20. Anti-collision plate. Detailed Implementation

[0015] 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.

[0016] Example: Refer to the appendix of the instruction manual Figure 1-3As can be seen, this application addresses the problems in the prior art where direct feeding of asphalt waste into a double-roll crusher 1 results in significant impact on the crushing rollers, a tendency for material to jam, high maintenance costs, and increased energy consumption due to the inclusion of small asphalt particles. Specifically, an asphalt pavement recycling device is designed, comprising a double-roll crusher 1 and a feed hopper 2 positioned above the feed inlet of the double-roll crusher 1. A support 3 is installed on one side of the feed hopper 2, and a buffer anti-collision assembly is installed inside the feed hopper 2. The buffer anti-collision assembly includes mounting bases 19 and anti-collision plates 20, with the mounting bases 19 being staggered and welded together. On the inner wall of the feed hopper 2, anti-collision plates 20 are welded to one end of the mounting base 19 along an inclined direction. After the asphalt waste fragments enter the feed hopper 2, they directly impact the anti-collision plates 20 for buffering. The setting of multiple sets of anti-collision plates 20 can effectively reduce the initial velocity of the asphalt fragments when entering the crusher and reduce the impact force on the crushing roller. Elastic support components are symmetrically arranged on the support 3. Screening troughs 4 are installed on the elastic support components along an inclined direction. Steel grid plates 5 are set in the screening troughs 4. One end of the steel grid plates 5 extends into the feed hopper 2. A collection hopper 6 is set at the bottom of the screening troughs 4. A vibrating motor 7 is installed on the side wall, and a guide control mechanism is installed on the side of the screening trough 4. A reverse unblocking component is installed on the moving end of the guide control mechanism. The reverse unblocking component is located below the steel grid plate 5. The steel grid plate 5 includes transverse reinforcing ribs and inclined guide ribs. The transverse reinforcing ribs are fixed in the screening trough 4 at certain intervals and arranged in an inclined direction. The inclined guide ribs are arranged on the transverse reinforcing ribs at certain intervals. The feed end of the existing double roll crusher 1 is improved by setting a screening trough 4 on one side of the feed hopper 2. The combination of the elastic support component, the screening trough 4 and the vibrating motor 7 is used. The recycled asphalt pavement waste is initially screened through the steel grid plate 5 in the screening tank 4, separating out small particles of asphalt waste. Larger particles of asphalt waste further enter the feed hopper 2, where they are decelerated by contact with the buffer and anti-collision components and then evenly fed into the roller crusher 1 for crushing. At the same time, the screening tank 4 is also equipped with a guiding control mechanism and a reverse unblocking component, which can remove asphalt waste stuck in the steel grid plate 5, improving the overall reliability of the device. The device has a simple structure, stable operation, and can effectively improve the efficiency of asphalt pavement recycling and crushing operations.

[0017] In the specific implementation process, as a preferred configuration, the above-mentioned elastic support component includes a support 8, a compression spring 9, and a connecting seat 10. The support 8 is fixed on the bracket 3, the compression spring 9 is set on the support 8, and one end of the connecting seat 10 is connected to the compression spring 9 and the other end is connected to the side wall of the screening trough 4. In use, the vibration force generated by the vibration motor 7 drives the collection hopper 6 and the screening trough 4 to vibrate as a whole under the elastic support of the compression spring 9, thereby further improving the screening efficiency. At the same time, the vibration force can promote the flow of asphalt waste on the steel grid plate 5, ensuring the smooth progress of the entire recycling operation.

[0018] In specific implementation, as a preferred configuration, the aforementioned guiding control mechanism includes a lead screw module 11, a guide rail 12, a slider 13, and a movable seat 14. A rectangular through-slot is formed along the inclined direction on the side wall of the screening tank 4. The lead screw module 11 is positioned above the rectangular through-slot and arranged parallel to it. The guide rail 12 is symmetrically arranged on both sides of the screening tank 4 and parallel to the rectangular through-slot. The slider 13 is slidably mounted on the guide rail 12. The movable seat 14 is fixed on the slider 13 and connected to the moving end of the lead screw module 11. The reverse unblocking component includes a fixed shaft 15, a drive mechanism 16, and an unblocking member. The fixed shaft 15 is rotatably mounted on the movable seat 14. The output end of the drive mechanism 16 is connected to the fixed shaft 15. The unblocking member is fixed on the fixed shaft 15 and located below the steel grid plate 5. The unblocking member includes a fixed seat 14. 7 and push rod 18, fixed seat 17 are welded to the outer wall of fixed shaft 15. Push rod 18 is arranged in a ring array on fixed seat 17 and one end is inserted into steel grid plate 5. When the equipment is stopped for maintenance, drive mechanism 16 on moving seat 14 is started. Drive mechanism 16 drives fixed shaft 15 to rotate. While fixed shaft 15 rotates, push rod 18 on fixed seat 17 pushes the asphalt fragments stuck in the gap of steel grid plate 5, thereby clearing the stuck asphalt fragments. At the same time, screw module 11 is started and the moving end of screw module 11 is controlled to move. With the cooperation of slider 13, moving seat 14 is pushed along guide rail 12. Push rod 18 can perform overall unblocking operation on steel grid frame, further ensuring smooth and efficient recycling operation.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An asphalt pavement recycling apparatus comprising a pair of roll crushers and a feed hopper disposed above the feed inlet of the pair of roll crushers, characterized in that, The feeding hopper is provided with a support on one side, a buffer anti-collision assembly is arranged in the feeding hopper, elastic support assemblies are symmetrically arranged on the support, screening grooves are installed on the elastic support assemblies in an inclined direction, a reinforced grid net plate is arranged in the screening groove, one end of the reinforced grid net plate extends into the feeding hopper, a collecting hopper is arranged at the lower part of the screening groove, a vibrating motor is arranged on the sidewall of the collecting hopper, a guide control mechanism is arranged on the side of the screening groove, a reverse blockage cleaning assembly is arranged on the moving end of the guide control mechanism and located below the reinforced grid net plate, the reinforced grid net plate comprises horizontal reinforcing ribs and inclined material guiding ribs, the horizontal reinforcing ribs are fixedly arranged in the screening groove at intervals and arranged in an inclined direction, and the inclined material guiding ribs are arranged on the horizontal reinforcing ribs at intervals.

2. The asphalt pavement recycling apparatus according to claim 1, wherein The elastic support assembly comprises a support, a compression spring and a connecting seat, the support is fixedly arranged on the support, the compression spring is arranged on the support, and one end of the connecting seat is connected with the compression spring and the other end is connected with the sidewall of the screening groove.

3. The asphalt pavement recycling apparatus according to claim 1, wherein The guide control mechanism comprises a lead screw module, a guide rail, a sliding block and a moving seat, a rectangular through groove is formed in the sidewall of the screening groove in an inclined direction, the lead screw module is arranged above the rectangular through groove and arranged in parallel with the rectangular through groove, the guide rails are symmetrically arranged on both sides of the screening groove and arranged in parallel with the rectangular through groove, the sliding block is slidably sleeved on the guide rail, and the moving seat is fixedly arranged on the sliding block and connected with the moving end of the lead screw module.

4. The asphalt pavement recycling apparatus according to claim 3, wherein The reverse blockage cleaning assembly comprises a fixed shaft, a driving mechanism and a blockage cleaning member, the fixed shaft is rotatably arranged on the moving seat, the output end of the driving mechanism is connected with the fixed shaft, and the blockage cleaning member is fixedly arranged on the fixed shaft and located below the reinforced grid net plate.

5. The asphalt pavement recycling apparatus according to claim 4, wherein The blockage cleaning member comprises a fixed seat and a material pushing rod, the fixed seat is welded on the outer sidewall surface of the fixed shaft, and the material pushing rod is arranged on the fixed seat in an annular array and one end of the material pushing rod is inserted into the reinforced grid net plate.

6. The asphalt pavement recycling apparatus according to claim 1, wherein The buffer anti-collision assembly comprises a mounting seat and an anti-collision plate, the mounting seat is staggered welded on the inner sidewall surface of the feeding hopper, and the anti-collision plate is welded on one end of the mounting seat in an inclined direction.

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