Dustproof mechanism for green construction waste recovery
The clamping mechanism allows for quick replacement of the dust collection filter and the atomizing nozzle for spraying water mist, solving the problem of delayed filter replacement and improving the dust control effect and efficiency of construction waste recycling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-03-10
AI Technical Summary
In the current construction waste crushing process, the inconvenience of replacing the filter screen leads to delays in dust prevention and affects waste recycling efficiency.
The clamping mechanism uses a motor-driven bidirectional screw to clamp the dust filter, which is easy to replace quickly. It is combined with an atomizing nozzle to spray water mist to reduce dust.
It improves filter replacement efficiency, reduces dust generation, and enhances waste recycling efficiency.
Smart Images

Figure CN223980948U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of green building waste recycling technology, and in particular to a dust prevention mechanism for green building waste recycling. Background Technology
[0002] Construction waste refers to the general term for slag, waste concrete, waste bricks and stones, and other waste generated during construction activities such as demolition, construction, decoration, and repair. Classified by source, construction waste can be divided into engineering slag, decoration waste, demolition waste, and engineering mud. Classified by composition, construction waste can be divided into slag, concrete blocks, crushed stone, brick and tile fragments, waste mortar, mud, asphalt blocks, waste plastics, waste metals, and waste bamboo and wood. With the acceleration of industrialization and urbanization, the construction industry has also developed rapidly, resulting in an increasing amount of construction waste.
[0003] Before recycling, construction waste needs to be crushed. This crushing process generates a large amount of dust, which pollutes the air and affects workers' health. Currently, while fans and filters can absorb dust from the crusher, the filters are bolted in place. As construction waste accumulates, replacing the filters to maintain dust control takes a considerable amount of time, impacting recycling efficiency. Therefore, a green dust control mechanism for construction waste recycling is proposed. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing crushers where the filter screen is fixed with bolts. When construction waste increases, the filter screen must be replaced to ensure dust prevention, which takes a long time and affects the efficiency of waste recycling. Therefore, this invention proposes a green dust prevention mechanism for construction waste recycling.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A dust-proof mechanism for recycling green building waste includes a first housing, a second housing fixedly connected to the bottom of the first housing, a feed inlet at the top of the first housing, a first rectangular shell fixedly connected to one side of the first housing, a suction fan installed on the top of the first rectangular shell, a suction pipe connected to one side of the suction fan, two rectangular slots inside the first rectangular shell, dust filters slidably connected in the rectangular slots, a clamping mechanism on one side of the first rectangular shell, a crushing mechanism on one side of the first housing, a conveyor belt inside the second housing, a discharge port at one end of the second housing, and a support leg fixedly connected to the bottom of the second housing.
[0007] Preferably, the clamping mechanism includes a first drive motor, a bidirectional screw, a clamping plate, and a limiting block. The output end of the first drive motor is connected to the bidirectional screw, the bidirectional screw is threadedly connected to the clamping plate, and one side of the clamping plate is fixedly connected to the limiting block.
[0008] Preferably, a second rectangular shell is fixedly connected to one side of the first rectangular shell, the first drive motor is mounted on the top of the second rectangular shell, the clamping plate is slidably connected to the inner wall of the second rectangular shell, one side of the dust collection filter abuts against the inner wall of the second rectangular shell, a limiting hole is opened on the side of the dust collection filter, and one end of the suction pipe is connected to one side of the first rectangular shell.
[0009] Preferably, the crushing mechanism includes a second drive motor, a first rotating rod, a first gear, a second rotating rod, a second gear, a third rotating rod, a first pulley, a second pulley, a first crushing roller, and a second crushing roller. The output end of the second drive motor is connected to the first rotating rod. The first rotating rod is fixedly connected to the first gear, and the second rotating rod is fixedly connected to the second gear. The first gear and the second gear mesh with each other. The first rotating rod is fixedly connected to the first pulley, and the third rotating rod is fixedly connected to the second pulley. A transmission belt is fitted on the first pulley and the second pulley. One end of the first rotating rod is fixedly connected to the first crushing roller, and one end of the third rotating rod is fixedly connected to the second crushing roller.
[0010] Preferably, a U-shaped plate is fixedly connected to one side of the first rectangular shell, the second drive motor is installed on one side of the U-shaped plate, the second rotating rod and the third rotating rod are rotatably connected to the U-shaped plate, the first crushing roller and the second crushing roller are both located inside the first shell, and a first guide plate and a second guide plate are fixedly connected to the inner wall of the first shell.
[0011] Preferably, a water storage tank is fixedly connected to the top of the second housing, an inlet is provided on the top of the water storage tank, a water pump is installed at the bottom of the water storage tank, an outlet pipe is connected to one side of the water pump, a spray pipe is installed at the top of the second housing, several atomizing nozzles are installed at the bottom of the spray pipe, and one end of the outlet pipe is connected to the spray pipe.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. When using this equipment, the clamping mechanism and the first drive motor drive the bidirectional screw to rotate. The bidirectional screw drives the clamping plates to move closer together inside the second rectangular shell, and the limiting block enters the limiting hole to clamp and limit the dust collection filter. When the dust collection filter needs to be replaced, the clamping plates move away from each other, and the two dust collection filters are removed and replaced with the other two dust collection filters. The clamping plates then clamp again, and the two removed dust collection filters are cleaned. The time required is short, which improves the efficiency of waste recycling.
[0014] 2. When using this equipment, water can be added to the water storage tank through the water inlet. The water pump controls the water extraction pipe to draw water. The water flows from the water outlet pipe into the water spray pipe, and finally the water mist is sprayed onto the conveyor belt through the atomizing nozzle, reducing the dust generated by the crushed construction waste. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a green building waste recycling and dust prevention mechanism proposed in this utility model;
[0016] Figure 2 This is a cross-sectional three-dimensional structural diagram of a green building waste recycling and dust prevention mechanism proposed in this utility model;
[0017] Figure 3 This is a three-dimensional structural diagram of the clamping mechanism of a dust-proof green building waste recycling mechanism proposed in this utility model;
[0018] Figure 4 This is a three-dimensional structural diagram of the crushing mechanism of a green building waste recycling and dust prevention system proposed in this utility model.
[0019] In the diagram: 1. First housing; 2. Second housing; 3. First rectangular housing; 4. Fan; 5. Suction pipe; 6. Dust filter; 7. Conveyor belt; 8. Discharge port; 9. First drive motor; 10. Bidirectional screw; 11. Clamping plate; 12. Limiting block; 13. Second rectangular housing; 14. Limiting hole; 15. Second drive motor; 16. First rotating rod; 17. Second rotating rod; 18. Second gear; 19. Third rotating rod; 20. Second pulley; 21. First crushing roller; 22. First guide plate; 23. Second guide plate; 24. Water tank; 25. Water outlet pipe; 26. Atomizing nozzle. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0021] Reference Figures 1-4 A dust-proof mechanism for recycling green building waste includes a first housing 1, a second housing 2 fixedly connected to the bottom of the first housing 1, a feed inlet on the top of the first housing 1, a first rectangular housing 3 fixedly connected to one side of the first housing 1, a suction fan 4 installed on the top of the first rectangular housing 3, a suction pipe 5 connected to one side of the suction fan 4, two rectangular slots inside the first rectangular housing 3, a dust filter 6 slidably connected inside the rectangular slots, a clamping mechanism on one side of the first rectangular housing 3, a crushing mechanism on one side of the first housing 1, a conveyor belt 7 inside the second housing 2, a discharge port 8 at one end of the second housing 2, and a support leg fixedly connected to the bottom of the second housing 2.
[0022] The first housing 1 has a rectangular opening on one side, and a baffle plate is installed at the rectangle. The opening on the baffle plate allows the suction fan 4 to suck up dust while preventing construction waste from falling into the first rectangular housing 3.
[0023] Two dust filters 6 simultaneously adsorb dust, further improving the dust-proof effect.
[0024] Furthermore, the clamping mechanism includes a first drive motor 9, a bidirectional screw 10, a clamping plate 11, and a limiting block 12. The output end of the first drive motor 9 is connected to the bidirectional screw 10, the bidirectional screw 10 is threadedly connected to the clamping plate 11, and one side of the clamping plate 11 is fixedly connected to the limiting block 12.
[0025] A second rectangular shell 13 is fixedly connected to one side of the first rectangular shell 3. A first drive motor 9 is installed on the top of the second rectangular shell 13. A clamping plate 11 is slidably connected to the inner wall of the second rectangular shell 13. One side of the dust filter 6 abuts against the inner wall of the second rectangular shell 13. A limiting hole 14 is opened on the side of the dust filter 6. One end of the suction pipe 5 is connected to one side of the first rectangular shell 3.
[0026] The first drive motor 9 is powered by an external device and its opening and closing are controlled. Construction waste is poured into the first housing 1 through the inlet. As the construction waste falls, the suction force generated by the suction fan 4 adsorbs the dust onto the surface of the dust filter 6 through the suction pipe 5. When dust is being prevented, the first drive motor 9 drives the bidirectional screw 10 to rotate. The bidirectional screw 10 drives the clamping plates 11 to move closer to each other in the second rectangular housing 13. The limiting block 12 enters the limiting hole 14 to clamp and limit the dust filter 6.
[0027] When it is necessary to replace the dust filter 6, the clamps 11 are moved away from each other, the two dust filters 6 are removed, and the other two dust filters 6 are replaced. The clamps 11 are then clamped again, and the two removed dust filters 6 are cleaned.
[0028] Furthermore, the crushing mechanism includes a second drive motor 15, a first rotating rod 16, a first gear, a second rotating rod 17, a second gear 18, a third rotating rod 19, a first pulley, a second pulley 20, a first crushing roller 21, and a second crushing roller. The output end of the second drive motor 15 is connected to the first rotating rod 16. The first rotating rod 16 is fixedly connected to the first gear. The second rotating rod 17 is fixedly connected to the second gear 18. The first gear and the second gear 18 mesh. The first rotating rod 16 is fixedly connected to the first pulley. The third rotating rod 19 is fixedly connected to the second pulley 20. A transmission belt is fitted on the first pulley and the second pulley 20. One end of the first rotating rod 16 is fixedly connected to the first crushing roller 21. One end of the third rotating rod 19 is fixedly connected to the second crushing roller.
[0029] A U-shaped plate is fixedly connected to one side of the first rectangular shell 3. The second drive motor 15 is installed on one side of the U-shaped plate. The second rotating rod 17 and the third rotating rod 19 are rotatably connected to the U-shaped plate. The first crushing roller 21 and the second crushing roller are located inside the first shell 1. The first guide plate 22 and the second guide plate 23 are fixedly connected to the inner wall of the first shell 1.
[0030] The second drive motor 15 is powered and controlled to open and close via an external device. The first guide plate 22 guides the construction waste poured into the first housing 1, causing it to fall between the first crushing roller 21 and the second crushing roller. The second drive motor 15 drives the first rotating rod 16 to rotate, which in turn drives the first gear to rotate. The first gear drives the second gear 18 to rotate, which in turn drives the second rotating rod 17 to rotate. The second rotating rod 17 drives the first pulley to rotate, which in turn drives the second pulley 20 to rotate via a transmission belt. The second pulley 20 then drives the third rotating rod 19 to rotate, thereby causing the first crushing roller 21 and the second crushing roller to rotate in opposite directions, thus crushing the construction waste.
[0031] The crushed construction waste falls into the conveyor belt 7 through the second guide plate 23, and the conveyor belt 7 transports the crushed construction waste out from the discharge port 8.
[0032] Meanwhile, the specific models and specifications of the first drive motor 9 and the second drive motor 15 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be elaborated here.
[0033] Furthermore, a water storage tank 24 is fixedly connected to the top of the second housing 2. The top of the water storage tank 24 has a water inlet. A water pump is installed at the bottom of the water storage tank 24. A water outlet pipe 25 is connected to one side of the water pump. A water spray pipe is installed at the top of the second housing 2. Several atomizing nozzles 26 are installed at the bottom of the water spray pipe. One end of the water outlet pipe 25 is connected to the water spray pipe.
[0034] Water is added to the water storage tank 24 through the water inlet, and the water pump controls the water pumping pipe to draw water. The water comes from the water outlet pipe 25 into the water spray pipe, and finally the water mist is sprayed onto the conveyor belt 7 through the atomizing nozzle 26 to reduce the dust generated by the crushed construction waste.
[0035] The working principle of this utility model:
[0036] Construction waste is poured into the first housing 1 through the inlet. As the construction waste falls, the suction force generated by the fan 4 draws the dust onto the surface of the dust filter 6 through the suction pipe 5. During dust prevention, the first drive motor 9 drives the bidirectional screw 10 to rotate. The bidirectional screw 10 drives the clamping plates 11 to move closer to each other in the second rectangular housing 13. The limiting block 12 enters the limiting hole 14 to clamp and limit the dust filter 6.
[0037] The first guide plate 22 guides the construction waste poured into the first housing 1, causing it to fall between the first crushing roller 21 and the second crushing roller. The second drive motor 15 drives the first rotating rod 16 to rotate, which in turn drives the first gear to rotate. The first gear drives the second gear 18 to rotate, which in turn drives the second rotating rod 17 to rotate. The second rotating rod 17 drives the first pulley to rotate, which in turn drives the second pulley 20 to rotate via a transmission belt. The second pulley 20 then drives the third rotating rod 19 to rotate, thereby causing the first crushing roller 21 and the second crushing roller to rotate in opposite directions, thus crushing the construction waste.
[0038] The crushed construction waste falls into the conveyor belt 7 through the second guide plate 23. The conveyor belt 7 transports the crushed construction waste out of the discharge port 8. The water pump controls the water extraction pipe to draw water. The water comes from the water outlet pipe 25 into the water spray pipe. Finally, the water mist is sprayed onto the conveyor belt 7 through the atomizing nozzle 26 to reduce the dust generated by the crushed construction waste.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A green construction waste recycling dust prevention mechanism comprising a first housing (1), characterized in that, The bottom of the first shell (1) is fixedly connected with a second shell (2), the top of the first shell (1) is provided with an inlet, one side of the first shell (1) is fixedly connected with a first rectangular shell (3), the top of the first rectangular shell (3) is provided with a suction fan (4), one side of the suction fan (4) is connected with a suction pipe (5), two rectangular grooves are formed in the first rectangular shell (3), dust filter screens (6) are slidably connected in the rectangular grooves, one side of the first rectangular shell (3) is provided with a clamping mechanism, one side of the first shell (1) is provided with a crushing mechanism, a conveying belt (7) is arranged in the second shell (2), one end of the second shell (2) is provided with an outlet (8), and the bottom of the second shell (2) is fixedly connected with supporting legs.
2. A green construction waste recycling dust prevention mechanism according to claim 1, characterized in that, The clamping mechanism comprises a first driving motor (9), a bidirectional screw rod (10), a clamping plate (11) and a limiting block (12), the output end of the first driving motor (9) is connected with the bidirectional screw rod (10), the bidirectional screw rod (10) is threadedly connected with the clamping plate (11), and one side of the clamping plate (11) is fixedly connected with the limiting block (12).
3. The green construction waste recycling dust prevention mechanism according to claim 2, characterized in that, One side of the first rectangular shell (3) is fixedly connected with a second rectangular shell (13), the first driving motor (9) is installed on the top of the second rectangular shell (13), the clamping plate (11) is slidably connected with the inner wall of the second rectangular shell (13), one side of the dust filter screen (6) abuts against the inner wall of the second rectangular shell (13), a limiting hole (14) is formed in the side of the dust filter screen (6), and one end of the suction pipe (5) is connected with one side of the first rectangular shell (3).
4. The green construction waste recycling dust prevention mechanism according to claim 1, wherein The crushing mechanism comprises a second driving motor (15), a first rotating rod (16), a first gear, a second rotating rod (17), a second gear (18), a third rotating rod (19), a first belt pulley, a second belt pulley (20), a first crushing roller (21) and a second crushing roller, the output end of the second driving motor (15) is connected with the first rotating rod (16), the first rotating rod (16) is fixedly connected with the first gear, the second rotating rod (17) is fixedly connected with the second gear (18), the first gear is engaged with the second gear (18), the first rotating rod (16) is fixedly connected with the first belt pulley, the third rotating rod (19) is fixedly connected with the second belt pulley (20), a transmission belt is sleeved on the first belt pulley and the second belt pulley (20), one end of the first rotating rod (16) is fixedly connected with the first crushing roller (21), and one end of the third rotating rod (19) is fixedly connected with the second crushing roller.
5. A green construction waste recycling dust prevention mechanism according to claim 4, characterized in that, One side of the first rectangular shell (3) is fixedly connected with a U-shaped plate, the second driving motor (15) is installed on one side of the U-shaped plate, the second rotating rod (17) and the third rotating rod (19) are rotatably connected with the U-shaped plate, the first crushing roller (21) and the second crushing roller are located in the first shell (1), and the inner wall of the first shell (1) is fixedly connected with a first guide plate (22) and a second guide plate (23).
6. A green construction waste recycling dust prevention mechanism according to claim 1, characterized in that, The top of the second shell (2) is fixedly connected with a water storage tank (24), the top of the water storage tank (24) is provided with a water inlet, the inner bottom of the water storage tank (24) is provided with a water pump, one side of the water pump is connected with a water outlet pipe (25), the inner top of the second shell (2) is provided with a water spraying pipe, the bottom of the water spraying pipe is provided with a plurality of atomizing nozzles (26), and one end of the water outlet pipe (25) is connected with the water spraying pipe.