Concrete waste recovery device
By combining the crushing roller and the screening box, the problem of unsatisfactory screening in existing devices has been solved, achieving efficient screening and dust removal, and improving the recycling rate of concrete waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI GUANGJIE CONCRETE CO LTD
- Filing Date
- 2025-02-12
- Publication Date
- 2026-05-01
AI Technical Summary
Existing concrete waste recycling equipment cannot effectively screen and separate crushed waste, resulting in low recycling rates.
A device comprising a crushing roller, a screening box, a cam, and an elastic mechanism was designed. The crushing roller crushes concrete waste, the screening box screens the waste, and the cam and elastic mechanism are used to achieve reciprocating shaking of the screening box. Dust is treated by combining a mixed-flow fan pump and a dust collector bag.
It achieves efficient screening and dust removal of crushed concrete waste, improves recycling rate, and reduces environmental pollution.
Smart Images

Figure CN224180938U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction waste treatment technology, specifically to a concrete waste recycling device. Background Technology
[0002] Concrete waste refers to discarded concrete blocks and other related materials generated during the construction process. These wastes mainly include leftover concrete, building debris, decoration and finishing waste, broken bricks and concrete blocks, as well as mortar and pile heads.
[0003] When recycling concrete waste, it needs to be crushed into a certain particle size by a crusher to become recycled concrete aggregate, replacing some stone chips as raw material for manufacturing ordinary concrete bricks. Under the current technology, most recycling devices cannot screen the crushed concrete waste during the crushing and recycling process, resulting in unsatisfactory crushing effect, low recycling rate of concrete waste, and insufficient practicality. Therefore, it is necessary to redesign the concrete waste recycling device to address the above problems. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a concrete waste recycling device, which solves the problem that traditional waste recycling devices cannot screen crushed concrete waste, resulting in unsatisfactory crushing effects and low recycling rates of concrete waste.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a concrete waste recycling device, comprising a base plate, wherein multiple pulleys are fixedly installed on the bottom wall of the base plate, and a crushing bucket is fixedly installed on the upper surface of the base plate via a support plate. Two crushing rollers are rotatably installed inside the crushing bucket, and the outer walls of the rotating shafts of the two crushing rollers are connected via a rotating mechanism. A first motor connected to one of the crushing rollers is fixedly installed on the outer wall of the crushing bucket. Guide plates are fixedly installed on the inner walls of both sides of the crushing bucket. A prismatic rod is fixedly installed on the upper surface of the base plate via a movable frame, and two sliders are slidably installed on the outer wall of the prismatic rod. The outer walls of the two sliders are connected via an elastic mechanism. The two slider ends are fixedly connected to the inner wall of the movable frame and to a screening box. A screening plate is fixedly installed inside the screening box. A collection box is slidably installed on the outer wall of the screening box through a sliding opening. A screening opening communicating with the interior is opened on the outer wall of the screening box. A sealing plate that mates with the screening opening is fixedly installed on the outer wall of the screening box by multiple bolts. An extrusion block is fixedly installed on the outer wall of the screening box. An extrusion groove is opened on the outer wall of the extrusion block. A second motor is fixedly installed on the upper surface of the base plate through a connecting mechanism. A cam is fixedly installed on the outer wall of the output shaft of the second motor. A mixed-flow fan pump is fixedly installed on the upper surface of the base plate through a connecting mechanism.
[0008] Preferably, the rotating mechanism includes gears fixedly mounted on the outer walls of the rotating shafts of the two crushing rollers, and the two gears mesh with each other.
[0009] Preferably, the elastic mechanism includes a spring mounted on the outer wall of the prism rod, with both ends of the spring elastically connected to the inner wall of the moving frame and the outer wall of the slider, respectively.
[0010] Preferably, the connecting mechanism includes a connecting plate fixedly mounted on the upper surface of the base plate, and the second motor is fixedly mounted on the bottom wall of the connecting plate.
[0011] Preferably, the connecting mechanism includes a connecting plate fixedly installed on the upper end face of the base plate, and the mixed flow fan pump is fixedly installed on the upper end face of the connecting plate.
[0012] Preferably, a dust collection hood is fixedly installed on the outer wall of the inlet pipe of the mixed-flow fan pump, and a dust collection bag is fixedly installed on the outer wall of the outlet pipe of the mixed-flow fan pump.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, the present invention provides a concrete waste recycling device, which has the following beneficial effects:
[0015] 1. By setting up components such as cam, screening box and screening plate, when the cam rotates continuously and intermittently contacts the inner wall of the extrusion groove, the screening box can be reciprocated by the elastic cooperation of two springs. The screening box then shakes and screens the crushed waste material through the screening plate, so that the unqualified waste material can be crushed again.
[0016] 2. By setting up components such as a mixed-flow fan pump, a dust suction hood, and a dust collection bag, the mixed-flow fan pump can suck up the dust generated during screening through the dust suction hood and discharge it into the dust collection bag for filtration, thereby preventing dust from being dispersed in the air and affecting environmental quality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the concrete waste recycling device proposed in this utility model;
[0018] Figure 2 for Figure 1 A schematic diagram of the vertical section structure;
[0019] Figure 3 This is a top view of the concrete waste recycling device proposed in this utility model.
[0020] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;
[0021] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B in the diagram.
[0022] In the picture:
[0023] 1. Base plate, 2. Pulley, 3. Support plate, 4. Crushing bucket, 5. Crushing roller, 6. Gear, 7. First motor, 8. Moving frame, 9. Prism rod, 10. Slider, 11. Spring, 12. Screening box, 13. Screening plate, 14. Collection box, 15. Sealing plate, 16. Extrusion block, 17. Connecting plate, 18. Second motor, 19. Cam, 20. Connecting plate, 21. Mixed flow fan pump, 22. Dust suction hood, 23. Dust collector bag. Detailed Implementation
[0024] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0025] This utility model provides a technical solution:
[0026] Please see Figures 1-5 A concrete waste recycling device includes a base plate 1. Multiple pulleys 2 are fixedly installed on the bottom wall of the base plate 1. A crushing bucket 4 is fixedly installed on the upper surface of the base plate 1 via a support plate 3. Two crushing rollers 5 are rotatably installed inside the crushing bucket 4. The outer walls of the rotating shafts of the two crushing rollers 5 are connected via a rotating mechanism. A first motor 7, connected to one of the crushing rollers 5, is fixedly installed on the outer wall of the crushing bucket 4. Guide plates are fixedly installed on the inner walls of both sides of the crushing bucket 4. A prismatic rod 9 is fixedly installed on the upper surface of the base plate 1 via a movable frame 8. Two sliders 10 are slidably installed on the outer wall of the prismatic rod 9. The outer walls of the two sliders 10 are connected to the inner wall of the movable frame 8 via an elastic mechanism. The ends of the two sliders 10... The components are fixedly connected to a screening box 12. A screening plate 13 is fixedly installed inside the screening box 12. A collection box 14 is slidably installed on the outer wall of the screening box 12 through a sliding opening. A screening opening communicating with the interior is opened on the outer wall of the screening box 12. A sealing plate 15 that mates with the screening opening is fixedly installed on the outer wall of the screening box 12 by multiple bolts. An extrusion block 16 is fixedly installed on the outer wall of the screening box 12. An extrusion groove is opened on the outer wall of the extrusion block 16. A second motor 18 is fixedly installed on the upper end face of the bottom plate 1 through a connecting mechanism. A cam 19 is fixedly installed on the outer wall of the output shaft of the second motor 18. A mixed flow fan pump 21 is fixedly installed on the upper end face of the bottom plate 1 through a connecting mechanism.
[0027] Furthermore, the rotating mechanism includes gears 6 fixedly mounted on the outer wall of the rotating shafts of the two crushing rollers 5, and the two gears 6 mesh with each other.
[0028] Furthermore, the elastic mechanism includes a spring 11 installed on the outer wall of the prism rod 9, with both ends of the spring 11 elastically connected to the inner wall of the movable frame 8 and the outer wall of the slider 10, respectively.
[0029] Furthermore, the connecting mechanism includes a connecting plate 17 fixedly installed on the upper end face of the base plate 1, and a second motor 18 fixedly installed on the bottom wall of the connecting plate 17.
[0030] Furthermore, the connecting mechanism includes a connecting plate 20 fixedly installed on the upper surface of the base plate 1, and a mixed flow fan pump 21 fixedly installed on the upper surface of the connecting plate 20.
[0031] Furthermore, a dust suction hood 22 is fixedly installed on the outer wall of the inlet pipe of the mixed flow fan pump 21, and a dust collection bag 23 is fixedly installed on the outer wall of the outlet pipe of the mixed flow fan pump 21.
[0032] In practical use, the working principle of this utility model is as follows:
[0033] The base plate 1 can be easily moved by multiple pulleys 2. Before the concrete is recycled, the waste can be poured into the crushing bucket 4. At this time, the waste can be concentrated between the two crushing rollers 5 with the cooperation of two guide plates. Then, the first motor 7 can drive one of the crushing rollers 5 to rotate. One of the crushing rollers 5 can then drive the other crushing roller 5 to rotate through two meshing gears 6. At this time, the two crushing rollers 5 can rotate in opposite directions to crush the waste. The crushed waste can fall down into the screening box 12 and be located on the upper surface of the screening plate 13.
[0034] Meanwhile, the second motor 18 drives the cam 19 to rotate. When the cam 19 rotates, it can contact the inner wall of the extrusion groove. At this time, the extrusion block 16 is subjected to force, which can drive the two sliders 10 to slide on the outer wall of the prismatic rod 9 through the screening box 12, and squeeze and pull the two springs 11 respectively. When the cam 19 is not in contact with the inner wall of the extrusion groove, the two springs 11 can drive the screening box 12 to move and reset through the cooperation of the two sliders 10. When the cam 19 rotates continuously and contacts the inner wall of the extrusion groove intermittently, the elastic cooperation of the two springs 11 can realize the reciprocating shaking of the screening box 12. The screening box 12 then shakes and screens the crushed waste material through the screening plate 13. The waste material that passes the crushing test falls into the collection box 14 and is collected, while the waste material that fails the crushing test is intercepted on the upper surface of the screening plate 12. During the screening process, the mixed flow fan pump 21 can suck up the dust generated during screening through the dust suction hood 22 and discharge it into the dust collection bag 23 for filtration. This can prevent dust from floating in the air and affecting the environmental quality. When it is necessary to take out the waste material that fails the crushing test for further crushing, the bolts can be turned to fix the sealing plate 15. Then the sealing plate 15 can be removed to release the obstruction of the screening opening. Then the waste material that fails the crushing test can be taken out for further crushing.
[0035] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.
Claims
1. A concrete waste recycling device, comprising a base plate (1), characterized in that, Multiple pulleys (2) are fixedly installed on the bottom wall of the base plate (1). A crushing bucket (4) is fixedly installed on the upper surface of the base plate (1) via a support plate (3). Two crushing rollers (5) are rotatably installed inside the crushing bucket (4). The outer walls of the rotating shafts of the two crushing rollers (5) are connected by a rotating mechanism. A first motor (7) connected to one of the crushing rollers (5) is fixedly installed on the outer wall of the crushing bucket (4). Guide plates are fixedly installed on both inner walls of the crushing bucket (4). A prismatic rod (9) is fixedly installed on the upper surface of the base plate (1) via a moving frame (8). Two sliders (10) are slidably installed on the outer wall of the prismatic rod (9). The outer walls of the two sliders (10) are connected to the inner wall of the moving frame (8) via an elastic mechanism. The ends of the two sliders (10) are fixed together. A screening box (12) is fixedly connected. A screening plate (13) is fixedly installed inside the screening box (12). A collection box (14) is slidably installed on the outer wall of the screening box (12) through a sliding opening. A screening opening communicating with the interior is opened on the outer wall of the screening box (12). A sealing plate (15) that cooperates with the screening opening is fixedly installed on the outer wall of the screening box (12) by multiple bolts. An extrusion block (16) is fixedly installed on the outer wall of the screening box (12). An extrusion groove is opened on the outer wall of the extrusion block (16). A second motor (18) is fixedly installed on the upper end face of the bottom plate (1) through a connecting mechanism. A cam (19) is fixedly installed on the outer wall of the output shaft of the second motor (18). A mixed flow fan pump (21) is fixedly installed on the upper end face of the bottom plate (1) through a connecting mechanism.
2. The concrete waste recycling device according to claim 1, characterized in that, The rotating mechanism includes gears (6) fixedly installed on the outer wall of the rotating shaft of the two crushing rollers (5), and the two gears (6) mesh with each other.
3. The concrete waste recycling device according to claim 2, characterized in that, The elastic mechanism includes a spring (11) installed on the outer wall of the prism rod (9), and the two ends of the spring (11) are elastically connected to the inner wall of the moving frame (8) and the outer wall of the slider (10), respectively.
4. The concrete waste recycling device according to claim 3, characterized in that, The connecting mechanism includes a connecting plate (17) fixedly installed on the upper surface of the base plate (1), and the second motor (18) is fixedly installed on the bottom wall of the connecting plate (17).
5. The concrete waste recycling device according to claim 4, characterized in that, The connecting mechanism includes a connecting plate (20) fixedly installed on the upper surface of the base plate (1), and the mixed flow fan pump (21) is fixedly installed on the upper surface of the connecting plate (20).
6. The concrete waste recycling device according to claim 5, characterized in that, A dust collection hood (22) is fixedly installed on the outer wall of the inlet pipe of the mixed flow fan pump (21), and a dust collection bag (23) is fixedly installed on the outer wall of the outlet pipe of the mixed flow fan pump (21).