Concrete aggregate crushing device
By using components such as buffer and feeding dragons in concrete aggregate crushing devices, the problem of dust is scattered, and the effect of reducing air pollution and ensuring the health of staff.
Patent Information
- Application Number
- CN202420031947.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-05
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-01-05
AI Technical Summary
During the crushing process of concrete aggregate, the existing technology causes a large amount of dust to spread outward, causing serious air pollution and endangering the health of staff.
Designed a crushing device of concrete aggregate, using crushed boxes, buffer parts, sieve nets, and feeding dragon dragons. By buffering parts to reduce the feeding speed of crushing aggregate, reduce dust rising, and promote the broken bone on the screen by the feeding dragon. The materials are smoothly dish, reducing accumulation and dust.
Effectively reduce the phenomenon of dust outward, reduce the dust rate of dust in the air, reduce the pollution of dust to the working environment, and ensure the health of staff.
Smart Images
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Abstract
Description
Technical Field
[0001] The present application relates to the technical field of concrete production, and in particular to a concrete aggregate crushing device. Background Art
[0002] Concrete is an artificial stone material made of gel material, aggregate, water and admixtures and additives added in a certain proportion, mixed evenly, compacted, cured and hardened. Among them, concrete aggregate is a granular loose material that plays a role of skeleton or filling in concrete.
[0003] At present, in the production process of concrete aggregate, concrete aggregate can be made of waste materials such as coal slag and solid concrete, which can be reused after being crushed by a crusher. However, when using existing crushers to crush concrete aggregate, a large amount of dust will be generated, and the dust will diffuse into the air, which will bring serious air pollution to the working environment and seriously endanger the health of the workers. Summary of the invention
[0004] In order to reduce the phenomenon of dust dispersing outwards during the crushing process of concrete aggregates, reduce the dust emission rate in the air, and reduce the pollution of the working environment caused by dust, the present application provides a concrete aggregate crushing device.
[0005] The present application provides a concrete aggregate crushing device, which adopts the following technical solution:
[0006] A concrete aggregate crushing device comprises: a crushing box, a feed hopper is arranged at the top of the crushing box, and a discharge port is opened at the bottom of the crushing box; a crushing assembly is arranged in the crushing box below the feed hopper; a buffer is also arranged on the inner wall of the crushing box, and the buffer is located on the outer side of the crushing assembly close to the bottom end, and the buffer is used to buffer and reduce the feeding speed of crushed aggregate; a screen is arranged on the inner wall of the crushing box below the buffer, a feeding dragon is arranged on the top surface of the screen, and the feeding dragon is rotatably installed on the inner wall of the crushing box.
[0007] By adopting the above technical scheme, when crushing concrete aggregate, firstly, concrete aggregate is put into the crushing box from the open end of the feed hopper; then, the concrete aggregate is crushed by the crushing assembly, and then, under the buffering effect of the buffer, the feeding speed of the crushed aggregate is reduced, so that the crushed aggregate can be slowly fed to the screen, thereby reducing the dust rising and escaping caused by the collision and accumulation of the crushed aggregate due to the rapid feeding, which is conducive to reducing the dust emission rate in the air; finally, through the rotation of the feeding dragon, the crushed aggregate accumulated on the screen is driven to move horizontally, so that the accumulated crushed aggregate is loosened, which is conducive to the crushed aggregate passing through the screen and falling, so as to realize the crushed aggregate at the outlet The material is discharged and collected smoothly at the material inlet, thereby improving the production efficiency and reducing the accumulation of broken aggregate on the screen, so as to further reduce the dust rising and escaping caused by the collision and accumulation of broken aggregate when it is discharged; therefore, under the buffering effect of the buffer, the speed of the broken aggregate being discharged to the screen is buffered and reduced, and the feeding dragon is used to promote the smooth discharge of the broken aggregate on the screen, reduce the accumulation of broken aggregate on the screen, thereby effectively reducing the dust rising and escaping caused by the collision and accumulation of broken aggregate when it is discharged, so as to reduce the phenomenon of dust diffusion outward, reduce the dust emission rate in the air, and then reduce the pollution of the working environment caused by dust, and realize the protection of the health of the staff.
[0008] Preferably, the buffer member is a buffer plate, which is fixedly mounted on the inner wall of the crushing box and located on the outer side of the crushing assembly near the bottom end, and the fixed end to the free end of the buffer plate is inclined in an arc shape from top to bottom.
[0009] By adopting the above technical solution and setting the buffer plate, the crushed aggregate can be slowly fed onto the screen along the arc-shaped inclined surface of the buffer plate, so that the speed of the crushed aggregate feeding onto the screen can be buffered and reduced, thereby reducing the rising and escaping of dust caused by the collision and accumulation of the crushed aggregate feeding quickly, thereby achieving a reduction in the dust entrainment rate in the air.
[0010] Preferably, two buffer plates are provided, the two buffer plates are arranged opposite to each other on the inner wall of the crushing box, and the two buffer plates are respectively located outside the two sides of the crushing assembly.
[0011] By adopting the above technical scheme, the crushed aggregates on both sides of the crushing assembly can be slowly fed onto the screen along the two buffer plates respectively, and then the two buffer plates cooperate with each other to improve the buffer plates' receiving effect on the falling crushed aggregates, thereby effectively and fully buffering and reducing the feeding speed of the crushed aggregates, so as to further reduce the rising and escaping of dust caused by the collision and accumulation of the crushed aggregates due to the rapid feeding; and the two buffer plates can cooperate to block the dust from dispersing outwards, so as to further reduce the occurrence of the dust dispersing outwards, so that the dust raising rate in the air can be further reduced, which is conducive to further reducing the pollution of the working environment caused by dust, and realizing effective protection of the health of the staff.
[0012] Preferably, a circulation cylinder is provided on the outside of the crushing box, and a circulating lifting dragon is rotatably installed in the circulation cylinder; a feeding inlet is opened between the outer side of the circulation cylinder near the lower end and the crushing box, one end of the feeding dragon extends into the feeding inlet, and a feeding cylinder is connected between the circulation cylinder and the feed hopper.
[0013] By adopting the above technical scheme, when the concrete aggregate is crushed, the crushed aggregate accumulated on the screen is driven to move horizontally through the rotation of the feeding dragon, so that the accumulated crushed aggregate is loosened, and then the crushed aggregate is allowed to pass through the screen and fall down, and at the same time, the crushed aggregate that is too large to pass through the screen is pushed to the feeding inlet and enters the circulation drum from the feeding inlet; then, under the rotation of the circulation lifting dragon, the crushed aggregate with a larger size in the circulation drum is driven to move upward; when the crushed aggregate with a larger size moves up to the feeding drum, the crushed aggregate with a larger size will return to the feeding hopper through the feeding drum, and then the crushed aggregate with a larger size is discharged to the crushing assembly through the feeding hopper, and the crushed aggregate with a larger size is crushed again by the crushing assembly, thereby realizing the repeated crushing of the larger aggregate, so that the crushing effect of the concrete aggregate is improved, so as to improve the product qualification rate and the utilization rate of the raw materials.
[0014] Preferably, a top cover is provided at the open end at the top of the feed hopper, and one side of the top cover is hingedly mounted on the feed hopper.
[0015] By adopting the above technical solution, the dust is sealed in the crushing box through the top cover, further reducing the diffusion of dust to the outside, thereby further reducing the dust entrainment rate in the air; and, by closing the top cover on the opening end of the feed hopper, the phenomenon of workers being injured by concrete blocks jumping out during the crushing process is reduced, thereby providing protection for the workers.
[0016] Preferably, a handle is provided on the top cover.
[0017] By adopting the above technical solution, the handle is used for the staff to open or close the top cover, and then through the handle, the staff can open or close the top cover more conveniently, thereby improving the convenience of using the concrete aggregate crushing device.
[0018] Preferably, a locking piece is provided between the top cover and the feed hopper, and the locking piece is used to lock the top cover to the opening end of the feed hopper.
[0019] By adopting the above technical solution, under the action of the locking member, the top cover can be more stably covered on the open end of the feed hopper, so as to more stably seal the dust in the crushing box and further reduce the phenomenon of workers being injured by concrete blocks jumping out during the crushing process.
[0020] Preferably, a lower hopper is provided at the bottom end of the crushing box, and the discharge port is opened at the bottom end of the lower hopper.
[0021] By adopting the above technical scheme, the crushed aggregate can be tilted and gathered downward along the inner wall of the lower hopper toward the discharge port, so that the crushed aggregate can be collected at the discharge port, making the collection of the crushed aggregate more convenient and conducive to improving work efficiency; and, the phenomenon of dust diffusion outward when collecting aggregate is reduced, so that the dust emission rate in the air can be further reduced, which is conducive to further reducing the pollution caused by dust to the working environment, so as to achieve effective protection of the health of the staff.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. Under the buffering effect of the buffer, the speed of crushed aggregates dropping onto the screen is buffered and reduced, and the feeding dragon promotes the smooth dropping of crushed aggregates on the screen, reducing the accumulation of crushed aggregates on the screen, thereby effectively reducing the rising and escaping of dust caused by the collision and accumulation of crushed aggregates, reducing the phenomenon of dust diffusion outward, reducing the dust raising rate in the air, and further reducing the pollution of dust to the working environment, thus ensuring the health of the workers;
[0024] 2. The setting of the buffer plate allows the crushed aggregate to be slowly discharged onto the screen along the arc-shaped inclined surface of the buffer plate, so that the speed of the crushed aggregate being discharged onto the screen can be buffered and reduced, thereby reducing the dust rising and escaping caused by the collision and accumulation of the crushed aggregate being discharged quickly, thereby reducing the dust emission rate in the air;
[0025] 3. The arrangement of the circulation drum and the circulation lifting dragon enables the crushed aggregates accumulated on the screen to move horizontally through the rotation of the feeding dragon when the concrete aggregate is crushed, so that the accumulated crushed aggregates are loosened, and then the crushed aggregates pass through the screen and fall down, and at the same time, the crushed aggregates that are too large to pass through the screen are pushed to the feeding inlet and enter the circulation drum from the feeding inlet. Then, under the rotation of the circulation lifting dragon, the larger crushed aggregates in the circulation drum are driven to move upward. When the larger crushed aggregates move up to the feeding drum, the larger crushed aggregates will return to the feeding hopper through the feeding drum, and then the larger crushed aggregates will be discharged to the crushing assembly through the feeding hopper, and the larger crushed aggregates will be crushed again by the crushing assembly, thereby realizing the repeated crushing of larger aggregates, improving the crushing effect of concrete aggregates, and improving the product qualification rate and the utilization rate of raw materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 is a schematic diagram of the overall structure of a concrete aggregate crushing device in an embodiment of the present application;
[0027] Figure 2 is a half-section view of a concrete aggregate crushing device in an embodiment of the present application;
[0028] Figure 3 It is a schematic diagram of the assembly of the shaft rod and the sprocket in the embodiment of the present application.
[0029] Explanation of the reference numerals in the accompanying drawings: 1. Crushing box; 11. Support feet; 12. Feed hopper; 121. Open end; 13. Top cover; 131. Handle; 132. Locking piece; 14. Lower hopper; 141. Discharge port; 2. Crushing assembly; 21. First crushing roller; 22. Second crushing roller; 23. Crushing teeth; 24. Shaft; 241. Sprocket; 3. Screen; 4. Feeding dragon; 5. First motor; 6. Buffer plate; 61. Fixed end; 62. Free end; 7. Second motor; 8. Circulation cylinder; 81. Circulation lifting dragon; 82. Feeding inlet; 9. Third motor; 10. Feeding cylinder. DETAILED DESCRIPTION
[0030] The following is combined with Figure 1-3 This application is described in further detail.
[0031] The embodiment of the present application discloses a concrete aggregate crushing device.
[0032] Reference Figure 1 and Figure 2A concrete aggregate crushing device includes a crushing box 1, and a support leg 11 is fixedly installed on the peripheral side of the bottom of the crushing box 1, and the support leg 11 is used to stably support the crushing box 1. A feed hopper 12 is arranged at the top of the crushing box 1, and the top of the feed hopper 12 is arranged as an open end 121, and the feed hopper 12 is arranged in communication with the crushing box 1. A discharge port 141 is opened at the bottom of the crushing box 1, and the discharge port 141 is used for collecting crushed aggregate. Located below the feed hopper 12, a crushing assembly 2 is arranged in the crushing box 1, and a buffer is also arranged on the inner side wall of the crushing box 1, and the buffer is located on the outer side of the crushing assembly 2 near the bottom, and the buffer is used to buffer and reduce the discharge speed of the crushed aggregate. Located below the buffer, a screen 3 is arranged on the inner side wall of the crushing box 1, and a feeding dragon 4 is arranged on the top surface of the screen 3, and the feeding dragon 4 is rotatably installed on the inner side wall of the crushing box 1 through a bearing.
[0033] When the concrete aggregate is crushed, the concrete aggregate is firstly put into the crushing box 1 from the opening end 121 of the feed hopper 12; then, the concrete aggregate is crushed by the crushing assembly 2, and then, under the buffering effect of the buffer, the feeding speed of the crushed aggregate is reduced, so that the crushed aggregate can be slowly fed to the screen 3, thereby reducing the dust rising and escaping caused by the collision and accumulation of the crushed aggregate due to the rapid feeding, which is conducive to reducing the dust emission rate in the air; finally, through the rotation of the feeding dragon 4, the crushed aggregate accumulated on the screen 3 is driven to move horizontally, so that the accumulated crushed aggregate can be loosened, which is conducive to the crushed aggregate passing through the screen 3 and falling, so as to realize the smooth feeding and collection of the crushed aggregate at the discharge port 141, thereby improving the production efficiency, and reducing the accumulation of the crushed aggregate on the screen 3, so as to further reduce the dust rising and escaping caused by the collision and accumulation of the crushed aggregate.
[0034] Therefore, under the buffering effect of the buffer member, the speed at which the crushed aggregate is discharged onto the screen 3 is buffered and reduced, and the feeding dragon 4 is used to promote the smooth discharge of the crushed aggregate on the screen 3, reduce the accumulation of the crushed aggregate on the screen 3, thereby effectively reducing the rising and escaping of dust caused by the collision and accumulation of the crushed aggregate, thereby reducing the phenomenon of dust diffusion outward, reducing the dust emission rate in the air, and further reducing the pollution of the working environment caused by dust, thereby ensuring the health of the workers.
[0035] Reference Figure 2 and Figure 3The crushing assembly 2 includes a first crushing roller 21 and a second crushing roller 22, which are symmetrically arranged in the crushing box 1, and the first crushing roller 21 and the second crushing roller 22 are respectively connected to the crushing box 1 for rotation. Crushing teeth 23 are respectively arranged on the outer circumference of the first crushing roller 21 and the second crushing roller 22, and the crushing teeth 23 of the first crushing roller 21 and the second crushing roller 22 are meshed with each other, so that the crushing teeth 23 between the first crushing roller 21 and the second crushing roller 22 are staggered, so as to improve the crushing effect of concrete aggregate. Specifically, corresponding to the position of the first crushing roller 21, a shaft 24 is rotatably mounted on the crushing box 1, and one end of the shaft 24 is fixedly connected to the first crushing roller 21, and the other end of the shaft 24 penetrates the crushing box 1 and extends to the outside of the crushing box 1, and a sprocket 241 is fixedly mounted on the end of the shaft 24 located outside the crushing box 1; similarly, corresponding to the position of the second crushing roller 22, a shaft 24 and a sprocket 241 are also arranged on the crushing box 1, which will not be described in detail here. The two sprockets 241 are meshed and connected with each other; at the same time, a first motor 5 is fixedly mounted on the outside of the crushing box 1, and corresponding to the position of the shaft 24 on the first crushing roller 21, the driving end of the first motor 5 is fixedly connected to the end of the shaft 24 located outside the crushing box 1.
[0036] The shaft 24 is used to realize the rotation installation of the crushing roller in the crushing box 1, and the first motor 5 is used to provide a power source for the rotation of the crushing assembly 2. When crushing concrete aggregate, the shaft 24 on the first crushing roller 21 is driven to rotate by the first motor 5, thereby driving the first crushing roller 21 and the corresponding sprocket 241 to rotate, and at the same time driving another sprocket 241 to rotate, thereby driving the second crushing roller 22 to rotate, thereby realizing the synchronous reverse rotation of the first crushing roller 21 and the second crushing roller 22, so that the first crushing roller 21 and the second crushing roller 22 can cooperate with each other to fully contact the concrete aggregate, so as to fully grind and roll the concrete aggregate to achieve the effect of crushing and fine grinding.
[0037] Reference Figure 2 The buffer member is a buffer plate 6, which is fixedly mounted on the inner wall of the crushing box 1, and is located on the outer side of the crushing assembly 2 near the bottom. Specifically, the two ends of the buffer plate 6 are respectively set as a fixed end 61 and a free end 62, and the fixed end 61 of the buffer plate 6 is fixedly connected to the inner wall of the crushing box 1, and the fixed end 61 is close to the bottom of the crushing assembly 2, and the free end 62 is close to the screen 3. The fixed end 61 to the free end 62 of the buffer plate 6 are arranged in an arc-shaped inclination from top to bottom, so that the crushed aggregate can be slowly discharged onto the screen 3 along the arc-shaped inclined surface of the buffer plate 6, so that the speed of the crushed aggregate being discharged onto the screen 3 can be buffered and reduced, thereby reducing the dust rising and escaping caused by the collision and accumulation of the crushed aggregate due to the rapid discharge, and realizing the reduction of the dust entrainment rate in the air.
[0038] Reference Figure 2 More specifically, two buffer plates 6 are provided, and the two buffer plates 6 are relatively arranged on the inner wall of the crushing box 1, and the two buffer plates 6 are respectively located outside the first crushing roller 21 and the second crushing roller 22 on the side facing the crushing box 1, so that the crushed aggregates on the first crushing roller 21 and the second crushing roller 22 can be slowly discharged onto the screen 3 along the two buffer plates 6 respectively, and then through the mutual cooperation of the two buffer plates 6, the buffer plates 6 are improved. The receiving effect of the falling crushed aggregate is improved, thereby effectively and fully buffering and reducing the feeding speed of the crushed aggregate, so as to further reduce the dust rising and escaping caused by the collision and accumulation of the rapid feeding of the crushed aggregate; and the two buffer plates 6 can cooperate to block the dust from dispersing outwards, thereby further reducing the occurrence of dust dispersing outwards, so that the dust rate of dust in the air can be further reduced, which is conducive to further reducing the pollution of the working environment caused by dust, and realizing effective protection of the health of the staff.
[0039] Reference Figure 3 In order to further reduce the phenomenon of dust dispersing outward, a top cover 13 is provided at the open end 121 at the top of the feed hopper 12, and one side of the top cover 13 is hingedly mounted on the feed hopper 12. When the concrete aggregate is put into the feed hopper 12, the top cover 13 is covered, so that the dust is blocked in the crushing box 1 through the top cover 13, further reducing the diffusion of dust to the outside, thereby further reducing the dust entrainment rate in the air; and, by covering the top cover 13 at the open end 121 of the feed hopper 12, the phenomenon of concrete blocks jumping out and injuring the workers during the crushing process is reduced, thereby providing protection for the workers. A handle 131 is provided on the top surface of the top cover 13, and the handle 131 is used for the workers to open or close the top cover 13, and then through the handle 131, the workers can more conveniently open or close the top cover 13, thereby improving the convenience of using the concrete aggregate crushing device.
[0040] Reference Figure 1Furthermore, a locking member 132 is provided between the top cover 13 and the feed hopper 12. The locking member 132 is used to lock the top cover 13 at the open end 121 of the feed hopper 12, so that the top cover 13 can be more stably covered at the open end 121 of the feed hopper 12, so that the dust can be more stably blocked in the crushing box 1, and the phenomenon of concrete blocks jumping out and injuring the workers during the crushing process can be further reduced. Specifically, the locking member 132 is a spring buckle, which is provided between the top cover 13 and the feed hopper 12, so that the top cover 13 and the feed hopper 12 are locked and fixed by the spring buckle, so that the top cover 13 can be stably covered at the open end 121 of the feed hopper 12, so that the dust can be more stably blocked in the crushing box 1, so that the dust emission rate in the air can be further reduced, and the phenomenon of concrete blocks jumping out and injuring the workers during the crushing process can be further reduced, thereby further realizing the protection of the health of the workers.
[0041] Reference Figure 1 and Figure 2 , corresponding to the position of the feeding dragon 4, a second motor 7 is fixedly installed on the outside of the crushing box 1. One end of the feeding dragon 4 penetrates the crushing box 1 and is fixedly connected to the driving end of the second motor 7, so that the second motor 7 provides a power source for the rotation of the feeding dragon 4, and the rotation of the feeding dragon 4 is realized. In order to improve the crushing effect of concrete aggregate, a circulation cylinder 8 is arranged on the outside of the crushing box 1, and a circulation lifting dragon 81 is rotatably installed in the circulation cylinder 8 through a bearing, and a third motor 9 is fixedly installed at the top of the circulation cylinder 8. The top of the circulation lifting dragon 81 penetrates the circulation cylinder 8 and is fixedly connected to the driving end of the third motor 9. The third motor 9 is used to drive the circulation lifting dragon 81 to rotate; and a feeding inlet 82 is opened between the outer side of the circulation cylinder 8 near the lower end and the crushing box 1, and the end of the feeding dragon 4 away from the second motor 7 extends into the feeding inlet 82, and the top surface of the screen 3 is level with the bottom end of the feeding inlet 82, and a feeding cylinder 10 is connected between the circulation cylinder 8 and the feed hopper 12.
[0042] When the concrete aggregate is crushed, the feeding dragon 4 is driven to rotate by the second motor 7, and then the feeding dragon 4 drives the crushed aggregate accumulated on the screen 3 to move horizontally, so that the accumulated crushed aggregate can be loosened, and then the crushed aggregate can pass through the screen 3 and fall down, and at the same time, the crushed aggregate that is too large to pass through the screen 3 is pushed to the feeding inlet 82 and enters the circulation cylinder 8 from the feeding inlet 82; then, the third motor 9 is used to drive the circulation lifting dragon 81 to rotate, and under the rotation of the circulation lifting dragon 81, the crushed aggregate is driven to move horizontally. The larger crushed aggregates in the circulation drum 8 move upward; when the larger crushed aggregates move up to the feeding drum 10, the larger crushed aggregates will return to the feeding hopper 12 through the feeding drum 10, and then the larger crushed aggregates will be discharged to the crushing component 2 through the feeding hopper 12, and the larger crushed aggregates will be crushed again by the crushing component 2, thereby realizing the repeated crushing of the larger aggregates, improving the crushing effect of the concrete aggregate, and improving the product qualification rate and the utilization rate of the raw materials.
[0043] Reference Figure 2 In order to facilitate the collection of crushed aggregates, a lower hopper 14 is provided at the bottom end of the crushing box 1, and the lower hopper 14 is connected to the crushing box 1, and a discharge port 141 is opened at the bottom end of the lower hopper 14; the lower hopper 14 gathers and tilts toward the discharge port 141 along its top end, so that the crushed aggregates can be tilted and gathered downward toward the discharge port 141 along the inner wall of the lower hopper 14, so that the crushed aggregates are concentratedly collected at the discharge port 141, making the collection of crushed aggregates more convenient and conducive to improving work efficiency; and, reducing the phenomenon of dust diffusion outward when collecting aggregates, so that the dust emission rate in the air can be further reduced, which is conducive to further reducing the pollution of the working environment caused by dust, so as to achieve effective protection of the health of the staff.
[0044] The above are all preferred embodiments of the present application. The embodiments are only explanations of the present application and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A concrete aggregate crushing device, characterized in that: include: A crushing box (1), wherein a feed hopper (12) is disposed at the top of the crushing box (1), and a discharge port (141) is provided at the bottom of the crushing box (1); a crushing assembly (2) is disposed in the crushing box (1) below the feed hopper (12); a buffer is also disposed on the inner wall of the crushing box (1), and the buffer is located on the outer side of the crushing assembly (2) near the bottom, and the buffer is used to buffer and reduce the feeding speed of crushed aggregate; a screen (3) is disposed on the inner wall of the crushing box (1) below the buffer, and a feeding dragon (4) is disposed on the top surface of the screen (3), and the feeding dragon (4) is rotatably mounted on the inner wall of the crushing box (1); The buffer member is a buffer plate (6), two of which are provided, and the two buffer plates (6) are arranged opposite to each other and fixedly mounted on the inner wall of the crushing box (1), the buffer plate (6) is located on the outer side of the crushing component (2) near the bottom, and the two buffer plates (6) are respectively located on both sides of the crushing component (2), and the fixed end (61) to the free end (62) of the buffer plate (6) is arranged to be inclined in an arc shape from top to bottom.
2. A concrete aggregate crushing device according to claim 1, characterized in that: A circulation cylinder (8) is arranged outside the crushing box (1), and a circulation lifting dragon (81) is rotatably installed in the circulation cylinder (8); a feeding inlet (82) is provided between the outer side of the circulation cylinder (8) near the lower end and the crushing box (1), one end of the feeding dragon (4) extends into the feeding inlet (82), and a feeding cylinder (10) is arranged in communication between the circulation cylinder (8) and the feed hopper (12).
3. A concrete aggregate crushing device according to claim 1, characterized in that: The open end (121) at the top of the feed hopper (12) is provided with a top cover (13), and one side of the top cover (13) is hingedly mounted on the feed hopper (12).
4. A concrete aggregate crushing device according to claim 3, characterized in that: The top cover (13) is provided with a handle (131).
5. A concrete aggregate crushing device according to claim 3, characterized in that: A locking member (132) is provided between the top cover (13) and the feed hopper (12), and the locking member (132) is used to lock the top cover (13) at the opening end (121) of the feed hopper (12).
6. A concrete aggregate crushing device according to claim 1, characterized in that: A lower hopper (14) is provided at the bottom end of the crushing box (1), and the discharge port (141) is opened at the bottom end of the lower hopper (14).