Screening device for solid waste

Abstract

The utility model belongs to the technical field of waste screening, and particularly discloses a solid waste screening device which comprises a device frame, a feeding box is fixedly installed at the top of the device frame, the bottom of the feeding box is fixedly communicated with a material distributing hopper, and the inner surface of the material distributing hopper is rotationally connected with a rotating shaft through a positioning mechanism. A material beating plate is arranged on the outer surface of the rotating shaft, a screening frame is fixedly installed on the device frame, a filter screen is arranged on the inner side of the screening frame, and a screen beating mechanism used for beating the filter screen is arranged on the device frame. According to the screening device for the solid waste, after the waste is pretreated and falls down in the feeding box, the waste is evenly dispersed and falls onto a filter screen of the screening frame under the action of a concave plate, a connecting strip and a beating plate, when the waste obliquely slides down along the filter screen, the waste accumulated in meshes is effectively removed through beating of a rubber hammer, the smoothness of the screen is kept, and the screening efficiency is improved. And the screening process is more continuous and efficient.

Description

Technical Field

[0001] The present application relates to the technical field of waste screening, and specifically relates to a screening device for solid waste. Background Art

[0002] When treating and recycling solid waste, screening is a common treatment method because solid waste is usually a mixture composed of various materials with different volumes. Screening can separate these wastes with different volumes, facilitating subsequent recycling and utilization processes.

[0003] When screening existing solid waste, the waste is generally dumped on the top of an inclined screen mesh, and screening is carried out during the process of the waste sliding down along the inclined screen mesh. This screening method has low efficiency, and the concentrated accumulation on the top of the screen mesh is likely to cause accumulation, resulting in the blockage of the mesh holes of the screen mesh by solid particles. The blocked mesh holes will prevent the waste from passing through smoothly, and the screen mesh needs to be frequently cleaned and maintained, affecting the screening effect and speed. Utility Model Content

[0004] In view of this, the purpose of the present utility model is to solve the drawbacks existing in the background art, and to propose a screening device for solid waste to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the present utility model provides a screening device for solid waste, including a device frame. A feeding box is fixedly installed on the top of the device frame. A material distribution hopper is fixedly communicated with the bottom of the feeding box. A rotating shaft is rotatably connected to the inner surface of the material distribution hopper through a positioning mechanism. A material slapping plate is arranged on the outer surface of the rotating shaft. A screening frame is fixedly installed on the device frame. A filter screen is arranged inside the screening frame. A screen slapping mechanism for slapping the filter screen is arranged on the device frame.

[0006] Preferably, the positioning mechanism includes a fixed shaft fixedly connected to the outer surface of the material distribution hopper. An electric push rod is rotatably connected to the outer surface of the fixed shaft. The output end of the electric push rod is fixedly connected to a concave plate. Through the positioning mechanism, solid waste particles can be relatively evenly dispersed before falling onto the filter screen.

[0007] Preferably, an inner shaft is fixedly penetrated through the inside of the concave plate. A connecting bar is rotatably connected to the outer surface of the inner shaft. One end of the connecting bar far from the inner shaft is fixedly connected to the outer surface of the rotating shaft.

[0008] Preferably, the screen slapping mechanism includes a motor fixedly installed inside the device frame. The output end of the motor is fixedly connected to a disc. A guiding shaft is fixedly connected to the outer surface of the disc. Through the screen slapping mechanism, the filter screen can be knocked to reduce the blockage of the filter screen.

[0009] Preferably, a swing bar is rotatably connected to the outer surface of the guide shaft, a guide rail is fixedly connected to the inside of the device frame, and a sliding carriage is slidably connected to the inside of the guide rail.

[0010] Preferably, one end of the sliding carriage close to the swing bar is fixedly connected to a frame shaft, the outer surface of the frame shaft is rotatably connected to one end of the swing bar away from the guide shaft, and several groups of rubber hammers are arranged at the end of the sliding carriage away from the frame shaft.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. For the screening device for solid waste, after the waste is first pretreated and dropped in the feeding box, through the action of the concave plate, connecting bar and material slapping plate, the waste is evenly dispersed and falls onto the filter screen of the screening frame. When the waste slides down along the filter screen obliquely, through the beating of the rubber hammers, the waste accumulated in the mesh holes is effectively removed, keeping the sieve mesh unobstructed, making the screening process more continuous and efficient.

[0013] 2. For the screening device for solid waste, considering the coordinated movement of components such as the electric push rod, disc, guide shaft and swing bar in the design, the screening device can be adjusted and optimized according to different waste characteristics and screening requirements. This flexibility ensures that high-efficiency screening effects can still be maintained under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of this application;

[0015] Figure 2 It is a schematic diagram of the internal structure of the feeding hopper of this application;

[0016] Figure 3 It is a schematic diagram of the internal structure of the device frame of this application.

[0017] Among them: 1. Device frame; 2. Feeding box; 3. Feeding hopper; 4. Rotating shaft; 5. Material slapping plate; 6. Fixed shaft; 7. Electric push rod; 8. Concave plate; 9. Inner shaft; 10. Connecting bar; 11. Screening frame; 12. Filter screen; 13. Motor; 14. Disc; 15. Guide shaft; 16. Swing bar; 17. Guide rail; 18. Sliding carriage; 19. Frame shaft; 20. Rubber hammer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0019] Please refer toFigures 1-3 , a screening device for solid waste, including a device frame 1. A feeding box 2 is fixedly installed at the top of the device frame 1. A distributing hopper 3 is fixedly communicated with the bottom of the feeding box 2. A rotating shaft 4 is rotatably connected to the inner surface of the distributing hopper 3 through a positioning mechanism. A material slapping plate 5 is arranged on the outer surface of the rotating shaft 4. A screening frame 11 is fixedly installed on the device frame 1. A filter screen 12 is arranged inside the screening frame 11. A screen slapping mechanism for slapping the filter screen 12 is arranged on the device frame 1.

[0020] Through the above technical solution, during the use of the device, solid waste can be put into the feeding box 2. When the solid waste falls onto the filter screen 12 of the screening frame 11 through the distributing hopper 3, the positioning mechanism will slap and disperse the waste, and cooperate with the screen slapping mechanism to knock the filter screen 12, which can reduce the blockage of the mesh holes of the filter screen 12.

[0021] Specifically, the positioning mechanism includes a fixed shaft 6 fixedly connected to the outer surface of the distributing hopper 3. An electric push rod 7 is rotatably connected to the outer surface of the fixed shaft 6. The output end of the electric push rod 7 is fixedly connected to a concave plate 8.

[0022] Through the above technical solution, during the process of the electric push rod 7 pushing and pulling the concave plate 8, its own angle will change to a certain extent, so as to rotate along the fixed shaft 6.

[0023] Specifically, an inner shaft 9 is fixedly penetrated through the inner side of the concave plate 8. A connecting bar 10 is rotatably connected to the outer surface of the inner shaft 9. One end of the connecting bar 10 far from the inner shaft 9 is fixedly connected to the outer surface of the rotating shaft 4.

[0024] Through the above technical solution, during the process of the electric push rod 7 pushing and pulling the concave plate 8, the connecting bar 10 will be driven through the inner shaft 9, causing the connecting bar 10 to swing. During this period, the rotating shaft 4 will rotate synchronously.

[0025] Specifically, the screen slapping mechanism includes a motor 13 fixedly installed inside the device frame 1. The output end of the motor 13 is fixedly connected to a disc 14. A guiding shaft 15 is fixedly connected to the outer surface of the disc 14.

[0026] Through the above technical solution, during the process of the motor 13 driving the disc 14 to rotate, the guiding shaft 15 will perform a circular motion accordingly.

[0027] Specifically, a swinging bar 16 is rotatably connected to the outer surface of the guiding shaft 15. A guide rail 17 is fixedly connected to the inside of the device frame 1. A sliding frame 18 is slidably connected to the inside of the guide rail 17.

[0028] Through the above technical solution, the circular motion of the guiding shaft 15 will drive the swinging bar 16 to deflect, so that both ends of the swinging bar 16 rotate along the guiding shaft 15 and the frame shaft 19 respectively.

[0029] Specifically, a frame shaft 19 is fixedly connected to one end of the carriage 18 close to the swing bar 16. The outer surface of the frame shaft 19 is rotatably connected to one end of the swing bar 16 away from the guide shaft 15. A plurality of groups of rubber hammers 20 are provided at the end of the carriage 18 away from the frame shaft 19.

[0030] Through the above technical solution, during the deflection of the swing bar 16, the carriage 18 will be driven through the frame shaft 19, causing it to move horizontally along the inner side of the guide rail 17.

[0031] Working principle: During the use of the device, first, the solid waste is put into the feeding box 2 for pretreatment. When the waste falls from the feeding box 2 into the distribution hopper 3, the electric push rod 7 is activated to push and pull the concave plate 8. During this period, the electric push rod 7 will rotate at a certain angle along the fixed shaft 6, and the concave plate 8 will push and pull the connecting bar 10 through the inner shaft 9, causing the rotating shaft 4 at the other end of the connecting bar 10 to rotate back and forth. During this process, the material slapping plate 5 will swing back and forth at a certain angle, thereby slapping the solid waste to make it disperse relatively evenly and fall onto the filter screen 12 of the screening frame 11, avoiding the accumulation of solid waste. And during the process of the waste sliding down obliquely along the filter screen 12 for screening, the motor 13 can be activated to drive the disc 14 to rotate. During this period, the guide shaft 15 will perform a circular motion accordingly, and the guide shaft 15 will drive the swing bar 16 during rotation, causing the swing bar 16 to deflect. During the deflection of the swing bar 16, it will rotate along the frame shaft 19 and push and pull the carriage 18 back and forth through the frame shaft 19, so that the carriage 18 moves horizontally back and forth along the guide rail 17. Finally, the rubber hammers 20 on the carriage 18 repeatedly slap the filter screen 12 to disperse the waste accumulated at the mesh holes of the filter screen 12, enabling it to be smoothly screened out, reducing the probability of blockage of the mesh holes of the filter screen 12, improving the screening effect and speed, and eliminating the need for frequent cleaning and maintenance of the filter screen 12. By evenly dispersing the waste and slapping the screen, it ensures the uniform distribution of the waste on the screening frame 11 and the consistency during the screening process, helping to avoid situations where there is too much or too little waste locally during the screening process, and ensuring the stability and controllability of the screening effect.

[0032] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A solid waste screening device, comprising a device frame (1), characterized in that: A feeding box (2) is fixedly mounted on the top of the device frame (1), a distribution hopper (3) is fixedly connected to the bottom of the feeding box (2), the inner surface of the distribution hopper (3) is rotatably connected to a rotating shaft (4) via a positioning mechanism, a material beating plate (5) is arranged on the outer surface of the rotating shaft (4), a screening frame (11) is fixedly mounted on the device frame (1), a filter screen (12) is arranged on the inner side of the screening frame (11), and a beating screen mechanism for beating the filter screen (12) is arranged on the device frame (1).

2. A solid waste screening device according to claim 1, characterized in that: The positioning mechanism comprises a fixed shaft (6) fixedly connected to the outer surface of the material distribution hopper (3), the outer surface of the fixed shaft (6) is rotatably connected to an electric push rod (7), and the output end of the electric push rod (7) is fixedly connected to a concave plate (8).

3. A solid waste screening device according to claim 2, characterized in that: An inner shaft (9) is fixedly penetrated through the inner side of the concave plate (8), a connecting bar (10) is rotatably connected to the outer surface of the inner shaft (9), and one end of the connecting bar (10) away from the inner shaft (9) is fixedly connected to the outer surface of the rotating shaft (4).

4. A solid waste screening device according to claim 1, characterized in that: The net-beating mechanism comprises a motor (13) fixedly mounted on the inner side of a device frame (1); an output end of the motor (13) is fixedly connected to a disc (14); and an outer surface of the disc (14) is fixedly connected to a guide shaft (15).

5. A solid waste screening device according to claim 4, characterized in that: The outer surface of the guide shaft (15) is rotatably connected to a swing bar (16), the interior of the device frame (1) is fixedly connected to a guide rail (17), and the inner side of the guide rail (17) is slidably connected to a slide frame (18).

6. A solid waste screening device according to claim 5, characterized in that: One end of the slide (18) close to the swing bar (16) is fixedly connected to a frame shaft (19), an outer surface of the frame shaft (19) is rotatably connected to one end of the swing bar (16) away from the guide shaft (15), and one end of the slide (18) away from the frame shaft (19) is provided with a plurality of groups of rubber hammers (20).

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