Dustproof concrete waste recycling device
By using atomizing nozzles to pre-wet the feed material in the concrete waste recycling device, and by using a bag filter and exhaust fan to draw dust into the dust collection box inside the connecting pipe during operation, the hazards to operator health are reduced, the service life and operational stability of the equipment are improved, and the working environment is also improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA MENGSHENG CONCRETE IND CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-19
AI Technical Summary
Existing concrete waste recycling equipment easily generates a large amount of dust during use, which harms surrounding workers and the environment.
A dustproof concrete waste recycling device was designed. It uses atomizing nozzles to spray water mist to pre-wet the feed material, uses a cloth bag to seal the feed pipe, and combines a dust collection box and an exhaust fan to suck the dust into the dust collection box, thus preventing dust diffusion and erosion.
It effectively suppresses dust dispersion, improves the working environment, reduces health hazards to operators, and extends the service life and operational stability of the equipment.
Smart Images

Figure CN224253804U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of construction waste recycling technology, and more specifically, it relates to a dustproof concrete waste recycling device. Background Technology
[0002] A concrete waste recycling device is a device used to recycle waste concrete and turn it back into a usable resource. Concrete waste recycling devices are conducive to the recycling of resources, reducing environmental pollution, and reducing the construction industry's dependence on natural aggregates. However, commonly used concrete waste recycling devices tend to generate a lot of dust during use, which can harm surrounding workers and the environment. Therefore, there is a need for a new type of dustproof concrete waste recycling device. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides a dustproof concrete waste recycling device to solve the problem that existing concrete waste recycling devices easily generate a large amount of dust during use, causing harm to surrounding workers and the environment.
[0004] This utility model discloses a dustproof concrete waste recycling device, which is achieved through the following specific technical means:
[0005] A dustproof concrete waste recycling device includes a shell, a screening rack, and a crushing box;
[0006] A fixed frame is fixedly connected to the lower end of the outer shell, and two sets of sliding grooves are provided on the upper side of the fixed frame. Storage boxes A and B are respectively installed on the left and right sides of the lower end of the outer shell. Motor 1 is installed inside the upper end of the outer shell. A support plate is fixedly connected to the rear end of the outer shell, and motor 2 is installed on the support plate. The motor shaft of motor 2 passes through both ends of motor 2, and incomplete gears are connected to both ends of the motor shaft of motor 2. The crushing box is placed at the upper end of the outer shell, and the lower end of the crushing box extends into the interior of the outer shell. A feed pipe is connected to the upper end of the crushing box, and a discharge pipe is connected to the lower end of the crushing box. The screening frame is placed inside the outer shell, and two sets of sliders are fixedly connected to the lower end of the screening frame. The sliders are installed in the sliding grooves on the fixed frame. A discharge port 1 is provided at the upper front end of the screening frame, and a discharge port 2 is provided at the lower front end of the screening frame. A sieve plate is installed inside the upper end of the screening frame, and a discharge plate is installed inside the lower end of the screening frame.
[0007] Furthermore, a support frame is fixedly connected to the upper end of the outer shell, a water pipe is connected to the support frame, and an atomizing nozzle is installed on the water pipe, with the atomizing nozzle close to the feed pipe.
[0008] Furthermore, the inside of the crushing box is equipped with crushing blade A and crushing blade B, and gears A and B are respectively connected to crushing blade A and crushing blade B. Gears A and B mesh, and the motor shaft of motor A is connected to crushing blade B.
[0009] Furthermore, the feed tube is equipped with a connecting frame inside, and a cloth bag tube is connected to the lower side of the connecting frame.
[0010] Furthermore, a connecting plate is fixedly connected to the rear side of the screening rack, and a set of racks is connected to the lower left and right sides of the connecting plate, and the racks mesh with incomplete gears. Two sets of connecting rods are fixedly connected to the front side of the screening rack. The connecting rods pass through the fixed plate and are connected to small baffles. Springs are fitted on the connecting rods.
[0011] Furthermore, a dust collection box is movably connected to the front side of the outer casing, and a connecting pipe is connected to the dust collection box. The rear end of the connecting pipe extends into the interior of the outer casing, and a sealing ring is fitted on the outside of the connecting pipe. A protective net is provided on the inner side of the rear end of the connecting pipe, and an exhaust fan is installed inside the connecting pipe.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. By setting up a cloth bag tube, this utility model facilitates the connection of a connecting frame inside the feeding pipe, with a cloth bag tube connected to the lower side of the connecting frame. The cloth bag tube can play a sealing role to a certain extent, preventing dust generated during the crushing process from leaking out of the feeding pipe.
[0014] 2. This utility model sets up a support frame, on which a water pipe is connected, and an atomizing nozzle is installed on the water pipe. The water mist sprayed from the atomizing nozzle can pre-wet the incoming waste material, effectively suppressing the dust generated during the feeding process, reducing the outward diffusion of dust, improving the working environment, and reducing the harm to the health of operators.
[0015] 3. By setting up a dust collection box and connecting it with a connecting pipe, the rear end of which extends into the interior of the outer shell, the dust can be drawn into the dust collection box by the exhaust fan inside the connecting pipe. This prevents dust from spreading inside the device, reduces dust corrosion to the equipment, and helps to improve the service life and operational stability of the equipment. It also improves the working environment and reduces the health hazards of dust to operators. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a cross-sectional structural diagram of the outer shell of this utility model.
[0018] Figure 3This is a cross-sectional structural diagram of the crushing box of this utility model.
[0019] Figure 4 This is a cross-sectional structural diagram of the screening rack of this utility model.
[0020] Figure 5 This is a cross-sectional structural diagram of the feed tube of this utility model.
[0021] Figure 6 This is a utility model Figure 2 A magnified structural diagram of point A in the middle.
[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0023] 1. Outer shell; 2. Support frame; 3. Water pipe; 4. Atomizing nozzle; 5. Feed pipe; 6. Storage box A; 7. Storage box B; 8. Screening rack; 9. Crushing box; 10. Motor 1; 11. Dust collection box; 12. Connecting pipe; 13. Fixing plate; 14. Feeding pipe; 15. Crushing blade A; 16. Crushing blade B; 17. Gear A; 18. Gear B; 19. Connecting plate; 20. Rack; 21. Fixing frame; 22. Slider; 23. Screen plate; 24. Feeding plate; 25. Feeding port 1; 26. Feeding port 2; 27. Connecting rod; 28. Spring; 29. Connecting frame; 30. Bag tube; 31. Support plate; 32. Motor 2; 33. Incomplete gear. Detailed Implementation
[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0025] Example:
[0026] As attached Figure 1 To be continued Figure 6 As shown:
[0027] This utility model provides a dustproof concrete waste recycling device, including a shell 1, a screening rack 8, and a crushing box 9;
[0028] A fixing frame 21 is fixedly connected to the lower end of the inner shell 1, and two sets of sliding grooves are provided on the upper side of the fixing frame 21. Storage boxes A6 and B7 are respectively clamped on the left and right sides of the lower end of the inner shell 1. Motor 10 is installed inside the upper end of the inner shell 1. A support plate 31 is fixedly connected to the rear end of the inner shell 1. Motor 2 32 is installed on the support plate 31. The motor shaft of motor 2 32 passes through both ends of motor 2 32, and incomplete gears 33 are connected to both ends of the motor shaft of motor 2 32. The crushing box 9 is placed at the upper end of the inner shell 1. The lower end of the crushing box 9 extends into the interior of the outer shell 1, and a feed pipe 5 is connected to the upper end of the crushing box 9. A discharge pipe 14 is connected to the lower end of the crushing box 9. The screening frame 8 is placed inside the outer shell 1, and two sets of sliders 22 are fixedly connected to the lower end of the screening frame 8. The sliders 22 are locked in the grooves on the fixed frame 21. A discharge port 1 25 is provided at the upper front side of the screening frame 8, and a discharge port 26 is provided at the lower front side of the screening frame 8. A screen plate 23 is installed inside the upper end of the screening frame 8, and a discharge plate 24 is installed inside the lower end of the screening frame 8.
[0029] Among them, such as Figure 1 As shown, a support frame 2 is fixedly connected to the upper end of the outer shell 1. A water pipe 3 is connected to the support frame 2, and an atomizing nozzle 4 is installed on the water pipe 3. The atomizing nozzle 4 is close to the feed pipe 5. When concrete waste enters the device through the feed pipe 5, the water mist sprayed by the atomizing nozzle 4 can pre-wet the waste, effectively suppressing dust generated during the feeding process, reducing dust diffusion, improving the working environment, and reducing the harm to the health of operators. In addition, the water mist can keep the inner wall of the feed pipe 5 at a certain humidity, preventing fine particles in the concrete waste from adhering to the inner wall of the feed pipe 5, ensuring that the material can smoothly enter the crushing box 9, and reducing the possibility of material residue and blockage.
[0030] Among them, such as Figure 3 and Figure 5 As shown, the crushing box 9 is equipped with crushing blades A15 and B16, and gears A17 and B18 are connected to crushing blades A15 and B16 respectively. Gears A17 and B18 mesh, and the motor shaft of motor 10 is connected to crushing blade B16. The feed pipe 14 is equipped with a connecting frame 29, and a cloth bag tube 30 is connected to the lower side of the connecting frame 29. The motor 10 drives crushing blades A15 and B16 to crush the waste. The cloth bag tube 30 facilitates the crushed waste to enter the screening rack 8, and the cloth bag tube 30 can also play a sealing role to a certain extent to prevent dust generated during the crushing process from leaking out of the feed pipe 14.
[0031] Among them, such as Figure 4As shown, a connecting plate 19 is fixedly connected to the rear side of the screening rack 8. A set of racks 20 are connected to the lower left and right sides of the connecting plate 19, and the racks 20 mesh with the incomplete gear 33. Two sets of connecting rods 27 are fixedly connected to the front side of the screening rack 8. The connecting rods 27 pass through the fixed plate 13 and are connected to small baffles. Springs 28 are fitted on the connecting rods 27. The incomplete gear 33 is driven to rotate by the motor 32. The springs 28 fitted on the connecting rods 27 at the front of the screening rack 8 play a role in buffering and resetting. This structure is relatively simple, easy to manufacture and install, and the connection and cooperation between the various components are relatively tight, resulting in high reliability.
[0032] Among them, such as Figure 2 As shown, a dust collection box 11 is movably connected to the front side of the outer casing 1. A connecting pipe 12 is connected to the dust collection box 11. The rear end of the connecting pipe 12 extends into the interior of the outer casing 1, and a sealing ring is fitted on the outside of the connecting pipe 12. A protective net is provided on the inner side of the rear end of the connecting pipe 12. An exhaust fan is installed inside the connecting pipe 12. When the exhaust fan is working, a negative pressure is formed inside the connecting pipe 12, which draws the dust generated during the crushing and screening process inside the outer casing 1 into the dust collection box 11 through the connecting pipe 12. This prevents dust from spreading inside the device, reduces the corrosion of the equipment by dust, and helps to improve the service life and operational stability of the equipment. It also improves the working environment and reduces the health hazards of dust to operators.
[0033] The specific usage and function of this embodiment are as follows:
[0034] like Figures 1 to 6 As shown, in this invention, when concrete waste enters the device through the feed pipe 5, the water mist sprayed from the atomizing nozzle 4 pre-wets the incoming waste, effectively suppressing dust generation during the feeding process, reducing dust diffusion, improving the working environment, and reducing health hazards to operators. Furthermore, the water mist maintains a certain level of humidity on the inner wall of the feed pipe 5, preventing fine particles from adhering to it and ensuring smooth entry of the material into the crushing chamber 9, reducing the possibility of material residue and blockage. The exhaust fan inside the connecting pipe 12 draws dust into the dust collection box 11, preventing dust from spreading within the device, reducing dust erosion, and improving the equipment's lifespan and operational stability. This also improves the working environment and reduces the health hazards of dust to operators. Any aspects not detailed in this invention are well-known to those skilled in the art.
Claims
1. A dustproof concrete waste recycling device, characterized in that: It includes a shell (1), a screening rack (8), and a crushing box (9); A fixed frame (21) is fixedly connected to the lower end of the inner shell (1), and two sets of sliding grooves are provided on the upper side of the fixed frame (21). Storage boxes A (6) and B (7) are respectively clamped on the left and right sides of the lower end of the inner shell (1). Motor 1 (10) is installed inside the upper end of the inner shell (1). A support plate (31) is fixedly connected to the rear end of the inner shell (1). Motor 2 (32) is installed on the support plate (31). The motor shaft of motor 2 (32) passes through both ends of motor 2 (32), and incomplete gears (33) are connected to both ends of the motor shaft of motor 2 (32). The crushing box (9) is placed at the upper end of the inner shell (1), and The lower end of the crushing box (9) is inserted into the interior of the outer shell (1), and the upper end of the crushing box (9) is connected to the feed pipe (5). The lower end of the crushing box (9) is connected to the discharge pipe (14). The screening frame (8) is placed inside the outer shell (1), and two sets of sliders (22) are fixedly connected to the lower end of the screening frame (8). The sliders (22) are locked in the grooves on the fixed frame (21). The upper front end of the screening frame (8) is provided with a discharge port one (25), and the lower front end of the screening frame (8) is provided with a discharge port two (26). The upper end of the screening frame (8) is equipped with a sieve plate (23), and the lower end of the screening frame (8) is equipped with a discharge plate (24).
2. The dustproof concrete waste recycling device as described in claim 1, characterized in that: The upper end of the outer shell (1) is fixedly connected to a support frame (2), a water pipe (3) is connected to the support frame (2), and an atomizing nozzle (4) is installed on the water pipe (3), and the atomizing nozzle (4) is close to the feed pipe (5).
3. The dustproof concrete waste recycling device as described in claim 1, characterized in that: The crushing box (9) is equipped with crushing blades A (15) and B (16), and gears A (17) and B (18) are respectively connected to crushing blades A (15) and B (16). Gears A (17) and B (18) mesh, and the motor shaft of motor 1 (10) is connected to crushing blade B (16).
4. The dustproof concrete waste recycling device as described in claim 1, characterized in that: The feed tube (14) is provided with a connecting frame (29) inside, and a cloth bag tube (30) is connected to the lower side of the connecting frame (29).
5. The dustproof concrete waste recycling device as described in claim 1, characterized in that: A connecting plate (19) is fixedly connected to the rear side of the screening rack (8). A set of racks (20) are connected to the lower left and right sides of the connecting plate (19), and the racks (20) mesh with the incomplete gears (33). Two sets of connecting rods (27) are fixedly connected to the front side of the screening rack (8). The connecting rods (27) pass through the fixed plate (13) and a small baffle is connected to the connecting rods (27). A spring (28) is fitted on the connecting rods (27).
6. The dustproof concrete waste recycling device as described in claim 1, characterized in that: A dust collection box (11) is movably connected to the front side of the outer shell (1). A connecting pipe (12) is connected to the dust collection box (11). The rear end of the connecting pipe (12) is inserted into the interior of the outer shell (1). A sealing ring is fitted on the outside of the connecting pipe (12). A protective net is provided on the inner side of the rear end of the connecting pipe (12). An exhaust fan is installed inside the connecting pipe (12).