A gravity sorting screen for domestic waste
By introducing a crushing box and an adjustable-speed blower into the gravity sorting screen for municipal solid waste, the problems of light and heavy materials sticking together and particle size differences causing a decrease in sorting accuracy have been solved, achieving efficient separation of waste and cost reduction.
Patent Information
- Application Number
- CN202522006034.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-18
AI Technical Summary
In traditional gravity sorting equipment, lightweight materials tend to stick to heavy materials, resulting in incomplete separation. Uncrushed waste has large particle size differences, which leads to a decrease in sorting accuracy and increases costs.
A gravity sorting screen for municipal solid waste was designed, comprising a crushing box, a crushing rod, an adjustable-speed blower, and a vibrating screen plate. The crushing box crushes the waste, and the blower and screen plate separate light and heavy materials. A pusher plate and a motor-driven pusher mechanism prevent waste from accumulating.
It achieves uniform crushing and sorting of waste, improves the separation efficiency of light and heavy materials, prevents material accumulation, and reduces sorting costs.
Smart Images
Figure CN224672815U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of waste screening technology, specifically relating to a gravity sorting screen for household waste. Background Technology
[0002] With the acceleration of urbanization, the amount of domestic waste has increased dramatically. Traditional manual sorting and landfill methods can no longer meet the needs of environmental protection and resource utilization. Domestic waste has a complex composition, usually including plastics, paper, metals, glass, organic matter, etc., and its effective sorting is a key link in resource recycling and subsequent treatment.
[0003] Traditional gravity sorting equipment makes it easy for lightweight materials to stick to heavy materials, resulting in incomplete separation. Uncrushed waste has large particle size differences, which leads to a decrease in sorting accuracy. Therefore, the waste needs to be crushed in advance, which increases costs. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a gravity sorting screen for municipal solid waste. This addresses the problems mentioned in the background art, such as the tendency of light materials to adhere to heavy materials in traditional gravity sorting equipment, resulting in incomplete separation, and the large particle size difference of uncrushed waste leading to a decrease in sorting accuracy, requiring pre-crushing of waste and increasing costs.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a gravity sorting screen for municipal solid waste, comprising a fixed frame, a crushing box fixedly connected to one side of the fixed frame, a first motor fixedly connected to the top side of the crushing box, a crushing rod fixedly connected to the output end of the first motor, a baffle plate rotatably connected to the bottom side of the crushing box, a screening plate disposed inside the fixed frame, a discharge port fixedly connected to one side of the fixed frame, a blower fixedly connected to one side of the fixed frame, first grooves symmetrically arranged on both sides inside the fixed frame, a second motor fixedly connected to one side of the fixed frame, a first threaded rod fixedly connected to the output end of the second motor, a first push plate threadedly connected to the outer side of the first threaded rod, and a conveyor belt fixedly connected to one side of the fixed frame.
[0006] Preferably, the inner sides of the grinding box are symmetrically provided with second grooves, a third motor is fixedly connected to one side of the grinding box, a second threaded rod is fixedly connected to the output end of the third motor, a second push plate is threadedly connected to the outer side of the second threaded rod, and a feed port is symmetrically fixedly connected to one side of the top of the grinding box.
[0007] Preferably, the fixed frame is symmetrically fixed with support feet on both sides.
[0008] Preferably, a first sliding rod is fixedly connected between the two sides inside the first groove, and the other end of the first push plate is slidably connected to the outside of the first sliding rod.
[0009] Preferably, a second sliding rod is fixedly connected between the two sides inside the second groove, and the other end of the second push plate is slidably connected to the outside of the second sliding rod.
[0010] Preferably, the first threaded rod is rotatably connected between the two sides inside the first groove.
[0011] Preferably, the second threaded rod is rotatably connected between the two sides inside the second groove.
[0012] Preferably, a plurality of filter holes are provided on one side of the screening plate.
[0013] Compared with the prior art, this utility model provides a gravity sorting screen for municipal solid waste, which has the following beneficial effects:
[0014] 1. This utility model sets up a crushing box, starts the first motor, drives the crushing rod to rotate, so that the domestic waste is crushed evenly, reducing the interference of large pieces of material on the sorting. At the same time, with the help of an adjustable fan and a vibrating screen plate, it effectively separates light materials from heavy materials.
[0015] 2. This utility model, by setting a first push plate and a second push plate, can move the first push plate by starting the second motor, and move the second push plate by starting the third motor, thus preventing garbage accumulation and ensuring uniform distribution of materials. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0017] Figure 1 This is a schematic diagram of the main body of a gravity sorting screen for municipal solid waste proposed in this utility model;
[0018] Figure 2 This is a top view of the structure of a gravity sorting screen for municipal solid waste proposed in this utility model;
[0019] Figure 3 This is a cross-sectional structural diagram of a gravity sorting and crushing box for municipal solid waste proposed in this utility model;
[0020] Figure 4 This is a schematic diagram of the internal structure of the fixing frame of a gravity sorting screen for municipal solid waste proposed in this utility model;
[0021] Figure 5 This is a schematic diagram of the bottom cross-section of the fixing frame of a gravity sorting screen for municipal solid waste proposed in this utility model;
[0022] In the diagram: 1. Fixed frame; 2. Grinding box; 3. First motor; 4. Grinding rod; 5. Baffle plate; 6. Screening plate; 7. Discharge port; 8. Fan; 9. First groove; 10. Second motor; 11. First threaded rod; 12. First push plate; 13. Conveyor belt; 14. Second groove; 15. Third motor; 16. Second threaded rod; 17. Second push plate; 18. Feed inlet; 19. Support foot; 20. First sliding rod; 21. Second sliding rod; 22. Filter hole. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-5 This utility model provides a technical solution: a gravity sorting screen for municipal solid waste, including a fixed frame 1, a crushing box 2 fixedly connected to one side of the fixed frame 1, a first motor 3 fixedly connected to the top side of the crushing box 2, a crushing rod 4 fixedly connected to the output end of the first motor 3, a baffle plate 5 rotatably connected to the bottom side of the crushing box 2, a screening plate 6 arranged inside the fixed frame 1, a discharge port 7 fixedly connected to one side of the fixed frame 1, a blower 8 fixedly connected to one side of the fixed frame 1, first grooves 9 symmetrically arranged on both sides inside the fixed frame 1, and a second motor 10 fixedly connected to one side of the fixed frame 1. The output end of the machine 10 is fixedly connected to a first threaded rod 11, and a first push plate 12 is threadedly connected to the outer side of the first threaded rod 11. A conveyor belt 13 is fixedly connected to one side of the fixed frame 1. When the first motor 3 is started, it can drive the crushing rod 4 to rotate, so that the domestic waste is crushed evenly and large pieces of material can be reduced to reduce the interference of sorting. At the same time, in conjunction with the adjustable wind speed fan 8 and the vibrating screening plate 6, it can effectively separate light materials from heavy materials. When the second motor 10 is started, it can drive the first threaded rod 11 to rotate, which can drive the first push plate 12 to move, and push the waste at the bottom of the fixed frame 1 to the outside.
[0025] In this utility model, preferably, the inner sides of the crushing box 2 are symmetrically provided with second grooves 14, a third motor 15 is fixedly connected to one side of the crushing box 2, a second threaded rod 16 is fixedly connected to the output end of the third motor 15, a second push plate 17 is threadedly connected to the outer side of the second threaded rod 16, and a feed inlet 18 is symmetrically fixedly connected to one side of the top of the crushing box 2. When the third motor 15 is started, the second threaded rod 16 can be rotated, which can drive the second push plate 17 to move, which can push the garbage inside the crushing box 2 onto the screening plate 6 to prevent garbage accumulation and ensure uniform material distribution.
[0026] In this utility model, preferably, support feet 19 are symmetrically fixedly connected to both sides of the fixed frame 1. A first sliding rod 20 is fixedly connected between the two sides inside a first groove 9. The other end of the first push plate 12 is slidably connected to the outside of the first sliding rod 20. The first sliding rod 20 serves to limit the movement of the first push plate 12. A second sliding rod 21 is fixedly connected between the two sides inside a second groove 14. The other end of the second push plate 17 is slidably connected to the outside of the second sliding rod 21. The second sliding rod 21 serves to limit the movement of the second push plate 17. A first threaded rod 11 is rotatably connected between the two sides inside a first groove 9. A second threaded rod 16 is rotatably connected between the two sides inside a second groove 14. A filter hole 22 is provided on one side of the screening plate 6. Several filter holes 22 are provided. The filter holes 22 can filter small garbage to the bottom of the fixed frame 1 when the screening plate 6 is shaken.
[0027] The working principle and usage process of this utility model are as follows: When in use, starting the first motor 3 drives the crushing rod 4 to rotate, making the domestic waste evenly crushed and reducing the interference of large pieces of material on the sorting. At the same time, in conjunction with the adjustable wind speed fan 8 and the vibrating screening plate 6, the light and heavy materials are effectively separated. When the screening plate 6 vibrates, the filter holes 22 can screen the fine waste to the bottom of the fixed frame 1. Starting the second motor 10 drives the first threaded rod 11 to rotate, which can drive the first push plate 12 to move, pushing the waste at the bottom of the fixed frame 1 to the outside. Starting the third motor 15 drives the second threaded rod 16 to rotate, which can drive the second push plate 17 to move, pushing the waste inside the crushing box 2 onto the screening plate 6, preventing waste accumulation and ensuring uniform material distribution.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A gravity sorting screen for municipal solid waste, comprising a fixed frame (1), characterized in that: A crushing box (2) is fixedly connected to one side of the fixed frame (1). A first motor (3) is fixedly connected to the top side of the crushing box (2). A crushing rod (4) is fixedly connected to the output end of the first motor (3). A baffle plate (5) is rotatably connected to the bottom side of the crushing box (2). A screening plate (6) is provided inside the fixed frame (1). A discharge port (7) is fixedly connected to one side of the fixed frame (1). A blower (8) is fixedly connected to one side of the fixed frame (1). A first groove (9) is symmetrically arranged on both sides inside the fixed frame (1). A second motor (10) is fixedly connected to one side of the fixed frame (1). A first threaded rod (11) is fixedly connected to the output end of the second motor (10). A first push plate (12) is threadedly connected to the outer side of the first threaded rod (11). A conveyor belt (13) is fixedly connected to one side of the fixed frame (1).
2. The gravity sorting screen for municipal solid waste according to claim 1, characterized in that: The grinding box (2) has symmetrical second grooves (14) on both sides inside. A third motor (15) is fixedly connected to one side of the grinding box (2). A second threaded rod (16) is fixedly connected to the output end of the third motor (15). A second push plate (17) is threadedly connected to the outside of the second threaded rod (16). A feed inlet (18) is symmetrically fixedly connected to one side of the top of the grinding box (2).
3. The gravity sorting screen for municipal solid waste according to claim 1, characterized in that: The fixed frame (1) is symmetrically fixed with support feet (19) on both sides.
4. The gravity sorting screen for municipal solid waste according to claim 1, characterized in that: A first sliding rod (20) is fixedly connected between the two sides inside the first groove (9), and the other end of the first push plate (12) is slidably connected to the outside of the first sliding rod (20).
5. A gravity sorting screen for municipal solid waste according to claim 2, characterized in that: A second sliding rod (21) is fixedly connected between the two sides inside the second groove (14), and the other end of the second push plate (17) is slidably connected to the outside of the second sliding rod (21).
6. The gravity sorting screen for municipal solid waste according to claim 1, characterized in that: The first threaded rod (11) is rotatably connected between the two sides inside the first groove (9).
7. A gravity sorting screen for municipal solid waste according to claim 2, characterized in that: The second threaded rod (16) is rotatably connected between the two sides inside the second groove (14).
8. A gravity sorting screen for municipal solid waste according to claim 1, characterized in that: The screening plate (6) has a filter hole (22) on one side, and there are several filter holes (22).