A waste concrete block recycling and crushing device
By combining the design of a spiral conveyor and a reverse-rotating crushing roller, along with a dust collection and screening mechanism, the problems of orderliness and dust in the waste concrete block crushing device are solved, achieving efficient crushing and safe waste treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGHUI (XIAMEN) NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-08-04
AI Technical Summary
Existing waste concrete block crushing devices lack orderliness during the material entry process, resulting in incomplete crushing by the crushing rollers, low crushing efficiency, and inability to meet the needs of large-scale construction waste treatment.
Concrete blocks are transported by a spiral conveyor and crushed by a counter-rotating crushing roller. Dust is removed by a dust collection mechanism, and a screen is set up to screen particles of different sizes to ensure crushing efficiency and safety.
It achieves efficient crushing of waste concrete blocks and effective dust removal, ensuring the orderly and safe crushing process and meeting the needs of large-scale construction waste treatment.
Smart Images

Figure CN224585975U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building material recycling and processing technology, and in particular to a waste concrete block recycling and crushing device. Background Technology
[0002] Concrete blocks are block-shaped objects formed by mixing cement, sand, water, and other materials in a certain proportion and then allowing them to harden. In the construction industry, they are often used for infrastructure construction and building structural components. They have high strength and durability and can withstand significant pressure and the impact of the external environment. With the acceleration of urbanization, the construction industry has generated a large number of waste concrete blocks. If these waste concrete blocks are directly landfilled, they will not only occupy a large amount of land resources but also pollute the environment. Recycling and crushing them for reuse as aggregate can solve environmental problems and achieve resource recycling, resulting in significant economic and social benefits.
[0003] Although existing waste concrete block crushing devices are widely used, they still have some shortcomings and limitations. For example, existing waste concrete block crushing devices lack order in the process of material entering the crusher. The material often falls into the crusher at the same time for crushing, which makes it impossible for the crushing roller to completely crush the material, resulting in low crushing efficiency and failing to meet the needs of large-scale construction waste treatment.
[0004] Therefore, it is necessary to design a waste concrete block recycling and crushing device. Utility Model Content
[0005] In order to overcome the shortcomings of existing waste concrete block crushing devices, which lack orderliness in the process of material entering the crusher and often fall into the crusher at the same time for crushing, making it impossible for the crushing roller to thoroughly crush the material, resulting in low crushing efficiency and failing to meet the needs of large-scale construction waste treatment, this utility model provides a waste concrete block recycling and crushing device.
[0006] The technical solution of this utility model is: a waste concrete block recycling and crushing device, including a frame, a controller, a feed hopper, a motor, a small gear, a crushing roller, a large gear, a spiral conveyor rod, a pulley assembly, and a collection box. The controller is installed on the front side of the frame, and the feed hopper is fixedly connected to the top of the frame. The motor is installed on the front side of the frame and is electrically connected to the controller. The small gear is rotatably connected to the front side of the frame, and the output shaft of the motor is connected to the small gear. Crushing rollers are symmetrically distributed and rotatably connected to both the left and right sides inside the frame. The front side of each crushing roller passes through the frame, and a large gear is fixedly connected to the front side of each crushing roller. The large gear meshes with the small gear. A spiral conveyor rod is rotatably connected to the upper end inside the frame and passes through the frame. A pulley assembly is connected between the crushing roller on the left side and the spiral conveyor rod to transmit power. A collection box is slidably connected to the bottom inside the frame.
[0007] Optionally, it also includes a dust collection mechanism, which is installed on the frame. The dust collection mechanism includes a dust collection head, a storage box, a dust collection pipe and an air pump. Dust collection heads are fixedly connected to the left and right sides of the upper end of the frame, and storage boxes are slidably connected to the left and right sides of the lower end of the frame. Dust collection pipes are fixedly connected between the dust collection head and the storage box. Air pumps are installed on the left and right sides of the frame and are electrically connected to the controller.
[0008] Optionally, it also includes a strainer, which is fixedly connected to the lower part of the inside of the frame and is located directly above the collection box.
[0009] Optionally, it also includes hooks, with hooks symmetrically distributed front and back fixedly connected to the lower left side of the frame.
[0010] Optionally, a discharge port is provided on the left side of the frame.
[0011] Optionally, the mesh is tilted downwards from right to left.
[0012] Beneficial effects: 1. The screw conveyor rotates to transport the waste concrete blocks inside the frame, preventing them from accumulating at the bottom of the feed hopper. The two crushing rollers rotate in opposite directions to squeeze, grind, and crush the concrete blocks. This solves the problem that existing waste concrete block crushing devices lack order in the process of material entering the crusher, often resulting in materials falling into the crusher simultaneously for crushing. This prevents the crushing rollers from thoroughly crushing the material, leading to low crushing efficiency and failing to meet the needs of large-scale construction waste treatment.
[0013] 2. This utility model incorporates a dust collection mechanism. During the crushing process, a large amount of dust is generated. The air pump can be activated by the controller. The air pump creates negative pressure in the dust collection pipe, drawing the dust through the dust collection head into the dust collection pipe and finally storing it in the storage box, preventing dust from overflowing and causing harm to the workers. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a partial sectional view of the frame, hopper, and motor components of this utility model.
[0016] Figure 3 This is a three-dimensional structural diagram of the components of this utility model, including the crushing roller, the large gear, and the spiral conveyor rod.
[0017] Figure 4 This is a three-dimensional structural diagram of the hook component of this utility model.
[0018] In the attached diagram: 1. Frame, 2. Controller, 3. Feed hopper, 4. Motor, 5. Pinion, 6. Crushing roller, 7. Large gear, 8. Screw conveyor, 9. Pulley assembly, 10. Collection box, 11. Dust suction head, 12. Miscellaneous storage box, 13. Dust suction pipe, 14. Air pump, 15. Strainer, 16. Hook, 1601. Discharge port. Detailed Implementation
[0019] Example: A waste concrete block recycling and crushing device, such as Figures 1-3 As shown, the system includes a frame 1, a controller 2, a feed hopper 3, a motor 4, a pinion 5, crushing rollers 6, a large gear 7, a screw conveyor 8, a pulley assembly 9, and a collection box 10. The controller 2 is mounted on the front of the frame 1, and the feed hopper 3 is welded to the top of the frame 1. The motor 4 is also mounted on the front of the frame 1 and is electrically connected to the controller 2. A pinion 5 is rotatably connected to the front of the frame 1, and the output shaft of the motor 4 is connected to the pinion 5. Crushing rollers 6 are symmetrically distributed and rotatably connected to both the left and right sides inside the frame 1. The two crushing rollers 6 rotate in opposite directions to crush and grind the concrete blocks. The crushing roller 6 passes through the front side of the frame 1. A large gear 7 is welded to the front side of the crushing roller 6. The large gear 7 meshes with the small gear 5. A spiral conveyor rod 8 is rotatably connected to the upper part of the frame 1. The front side of the spiral conveyor rod 8 passes through the frame 1. A pulley assembly 9 is connected between the crushing roller 6 on the left and the spiral conveyor rod 8 to transmit power. The rotation of the spiral conveyor rod 8 can transport the falling waste concrete blocks in the frame 1 and prevent the waste concrete blocks from accumulating at the lower end of the feed hopper 3. A collection box 10 is slidably connected to the bottom of the frame 1 to collect the small particles of the crushed concrete blocks.
[0020] like Figure 1 and Figure 3 As shown, it also includes a dust collection mechanism. The dust collection mechanism is installed on the frame 1. The dust collection mechanism includes a dust collection head 11, a waste storage box 12, a dust collection pipe 13 and an air pump 14. Dust collection heads 11 are welded to both the left and right sides of the upper end of the frame 1. Waste storage boxes 12 are slidably connected to both the left and right sides of the lower end of the frame 1. Dust collection pipes 13 are welded between the dust collection head 11 and the waste storage box 12. Air pumps 14 are installed on both the left and right sides of the frame 1. The air pumps 14 are electrically connected to the controller 2 and can clean up the large amount of dust generated during the crushing process to prevent dust from overflowing and causing harm to the workers.
[0021] like Figure 1 , Figure 3 and Figure 4As shown, it also includes a strainer 15 and hooks 16. The strainer 15 is welded to the lower end of the inside of the frame 1. The strainer 15 is located directly above the collection box 10. The strainer 15 is inclined downward from right to left, so as to screen the crushed concrete blocks and ensure that the collected concrete block particles are of uniform size. A discharge port 1601 is opened on the left side of the frame 1. Larger particles screened by the strainer 15 will slide along the inclined direction of the strainer 15 and be discharged through the discharge port 1601. Hooks 16 are welded to the lower left side of the frame 1 in a symmetrical arrangement, which are used to hang bags to collect larger concrete block particles.
[0022] When waste concrete blocks need to be recycled and crushed, the motor 4 is first started via controller 2. The two sides of the bag are hung on hooks 16. Then, the waste concrete blocks are poured into the frame 1 through the feed hopper 3. The output shaft of motor 4 rotates, driving the pinion 5 to rotate. Since the pinion 5 meshes with the large gear 7, the rotation of the pinion 5 drives the rotation of the large gear 7, causing the two crushing rollers 6 to rotate in opposite directions. The rotation of the left crushing roller 6 transmits power to the screw conveyor 8 through the pulley assembly 9. The rotation of the screw conveyor 8 transports the falling waste concrete blocks backward within the frame 1, preventing the waste concrete blocks from accumulating at the bottom of the feed hopper 3. The waste concrete blocks then fall onto the two crushing rollers 6 under gravity and are crushed by compression and grinding. After crushing, smaller particles pass through the screen 15 and fall into the collection box 10 below, while larger particles... The particles will slide to the left along the inclined direction of the strainer 15 and fall into the bag through the discharge port 1601, thereby achieving the screening of the crushed concrete blocks. During the crushing process, a large amount of dust will be generated. The air pump 14 can be started by the controller 2. The air pump 14 creates a negative pressure in the suction pipe 13, which sucks the dust into the suction pipe 13 through the suction head 11 and finally stores it in the storage box. After the concrete blocks in the frame 1 are crushed, the bag is removed from the hook 16 and the concrete blocks inside are poured back into the frame 1 for crushing. This completes the recycling and crushing of waste concrete blocks by this device. After crushing, the motor 4 and the air pump 14 are turned off, the collection box 10 is pulled out, the crushed concrete blocks are processed and pushed back, and finally the storage box 12 is pulled out, cleaned and pushed back for subsequent use.
Claims
1. A waste concrete block recycling and crushing apparatus, characterised in that: The machine includes a frame (1), a controller (2), a feed hopper (3), a motor (4), a pinion (5), a crushing roller (6), a large gear (7), a screw conveyor (8), a pulley assembly (9), and a collection box (10). The controller (2) is installed on the front side of the frame (1), the feed hopper (3) is fixedly connected to the top of the frame (1), the motor (4) is installed on the front side of the frame (1), the motor (4) is electrically connected to the controller (2), the pinion (5) is rotatably connected to the front side of the frame (1), and the output shaft of the motor (4) is connected to the pinion (5). (1) The left and right sides of the machine are rotatably connected to the crushing rollers (6) that are symmetrically distributed. The front side of the crushing rollers (6) passes through the frame (1). The front side of the crushing rollers (6) is fixedly connected to the large gears (7). The large gears (7) mesh with the small gears (5). The upper part of the machine frame (1) is rotatably connected to the spiral conveyor rod (8). The front side of the spiral conveyor rod (8) passes through the machine frame (1). The crushing rollers (6) on the left side and the spiral conveyor rod (8) are connected to the pulley assembly (9) to transmit power. The bottom of the machine frame (1) is slidably connected to the collection box (10).
2. The apparatus for recycling and crushing waste concrete blocks according to claim 1, wherein: It also includes a dust collection mechanism. The dust collection mechanism is installed on the frame (1). The dust collection mechanism includes a dust collection head (11), a storage box (12), a dust collection pipe (13) and an air pump (14). The dust collection head (11) is fixedly connected to the left and right sides of the upper end of the frame (1). The storage box (12) is slidably connected to the left and right sides of the lower end of the frame (1). The dust collection head (11) and the storage box (12) are fixedly connected to the dust collection pipe (13). The air pump (14) is installed on the left and right sides of the frame (1). The air pump (14) is electrically connected to the controller (2).
3. The apparatus for recycling and crushing waste concrete blocks according to claim 2, wherein: It also includes a strainer (15), which is fixedly connected to the lower end of the frame (1), and the strainer (15) is located directly above the collection box (10).
4. The apparatus for recycling and crushing waste concrete blocks according to claim 3, wherein: It also includes hooks (16), and the lower left side of the frame (1) is fixedly connected with hooks (16) that are symmetrically distributed front and back.
5. The apparatus for recycling and crushing waste concrete blocks according to claim 4, wherein: The machine frame (1) has a discharge port (1601) on the left side.
6. A device for recycling and crushing waste concrete blocks according to claim 5, characterized in that: The leaky net (15) is in a downward tilting state from right to left.