Plastic particle screening and recycling device

Abstract

The utility model relates to the technical field of plastic particle screening, in particular to a plastic particle screening and recycling device which comprises a base, a screening box and a material returning barrel, the screening box is installed at the top end of the base, a first supporting leg is fixed to the bottom end of the screening box, the material returning barrel is installed at the top end of the base, and a second supporting leg is fixed to the bottom end of the material returning barrel. The plastic particle screening device has the beneficial effects that plastic particles are subjected to double screening through the first screening plate and the second screening plate, the screened plastic particles enter the material returning barrel from the material returning pipe, and the steps are repeated, so that the plastic particles can be screened repeatedly and circularly, and sufficient screening of the plastic particles is kept; and the feeding device is located at the bottom end of the side face of the material returning barrel, the position is low, feeding is convenient, clustered plastic particles in the plastic particles can be scattered separately, and subsequent plastic particle screening is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of plastic particle screening technology, and in particular to a plastic particle screening and recycling device. Background Technology

[0002] Plastic granules refer to granular plastics, generally classified into more than 200 types, with further subdivisions reaching thousands. Common plastic granules include general-purpose plastics, engineering plastics, and specialty plastics. General-purpose plastics include polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, and polyurethane, etc. Engineering plastics include nylon, polytetrafluoroethylene, polyoxymethylene, and polycarbonate, etc. Specialty plastics include thermosetting plastics and functional polymer plastics, such as artificial kidneys.

[0003] During the production of plastic pellets, they often need to be screened. After screening, in order to reduce resource waste and environmental pollution, plastic pellets often need to be recycled.

[0004] Therefore, a plastic particle screening and recycling device is proposed.

[0005] For example, the prior art Chinese patent publication number "CN221584188U" provides a plastic particle screening and recycling device, including a screening box, a screening plate for screening plastic particles, and a discharge pipe, and further including: a dispersing structure, which is disposed above the screening plate and is used to disperse the falling plastic particles; a filter plate, which is disposed below the screening plate; a water inlet pipe is connected to the rear of the screening box; a drain hopper is connected to the bottom of the screening box; and a screw, which is rotatably connected to the back of the screening box.

[0006] This device separates impurities from the screened plastic particles. Through the threaded connection between the screw and the sleeve, it can drive the connecting plate and push plate to push out the plastic particles on the top of the filter plate, thus facilitating better recycling in the future. At the same time, the push-and-scatter structure can disperse the plastic particles accumulated on the top of the screening plate, thereby improving the efficiency of subsequent screening.

[0007] Existing plastic particle screening and recycling devices only screen plastic particles once, which is insufficient and fails to allow for repeated screening. In addition, some plastic particles may clump together, and these clumps are not stirred and dispersed, which is not conducive to the screening of plastic particles. Utility Model Content

[0008] The purpose of this invention is to address the shortcomings of existing technologies where plastic particles are only screened once, resulting in insufficient screening and failure to perform multiple repeated screenings. Therefore, this invention proposes a plastic particle screening and recycling device.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] Design a plastic granule screening and recycling device, including a base, a screening box, and a return cylinder. The screening box is installed at the top of the base, and a first support leg is fixed at its bottom. The return cylinder is installed at the top of the base, and a second support leg is fixed at its bottom. A first rotating rod rotates in the middle of the screening box, and a dispersing rod is fixed at the top of the first rotating rod. A first screening plate and a second screening plate are respectively installed on the surface of the first rotating rod. A first motor is installed at the bottom of the first rotating rod. The return cylinder is installed on one side of the screening box and is connected to each other by a return pipe. A feed pipe is connected to the bottom outer side of the return cylinder.

[0011] Furthermore, a second rotating rod is rotatably mounted in the middle of the return cylinder, a spiral blade is fixed on the surface of the second rotating rod, a second motor is mounted at the bottom end of the second rotating rod, an overlapping ring is fixed on the top side of the return cylinder, a connecting sleeve is slidably sleeved on the top of the return cylinder, a connecting rod is fixed at the bottom end of the connecting sleeve, a connecting hole is opened on the surface of the overlapping ring, the connecting rod is slidably inserted into the connecting hole, a discharge pipe is connected to the side of the connecting sleeve, and the outlet end of the discharge pipe is located at the top of the screening box.

[0012] Furthermore, the sides of the screening box are respectively connected to a first recycling pipe, a second recycling pipe and a third recycling pipe. The first recycling pipe is located at the top of the first screening plate, the second recycling pipe is located above the second screening plate, and the third recycling pipe is located above the bottom of the inside of the screening box.

[0013] Furthermore, the first rotating rod is vertically positioned, with its top end not exceeding the top end of the screening box, and the dispersing rod is evenly positioned around the surface of the first rotating rod.

[0014] Furthermore, the second rotating rod is vertically positioned, with its top end protruding upwards from the top of the return cylinder and below the top of the connecting sleeve.

[0015] Furthermore, the connecting sleeve is a circular sleeve structure and is vertically arranged, the connecting rod is vertically arranged, the overlapping ring is a circular ring structure and is horizontally arranged, and the connecting sleeve presses on the top of the overlapping ring.

[0016] Furthermore, both the return cylinder and the screening box are cylindrical structures and are vertically arranged.

[0017] The plastic particle screening and recycling device proposed in this utility model has the following advantages:

[0018] 1. This utility model has a return cylinder installed on one side of the screening box. Inside the return cylinder, a second motor drives a second rotating rod and a spiral blade to rotate, which can spirally lift the plastic particles entering the return cylinder and raise them to the inside of the connecting sleeve, so as to be discharged through the discharge pipe and enter the screening box. Inside the screening box, the plastic particles are double-screened by the first screening plate and the second screening plate. The screened plastic particles enter the return cylinder from the return pipe. This cycle is repeated, and the plastic particles can be screened repeatedly to ensure that the plastic particles are screened thoroughly.

[0019] 2. The feed pipe of this utility model is located at the bottom side of the return cylinder, which is low and convenient for feeding. Moreover, the plastic particles entering the return cylinder will be rotated and stirred during the spiral lifting process of the spiral blade. Afterwards, when the plastic particles enter the screening box through the discharge pipe, the first motor drives the dispersing rod to rotate, stirring and dispersing the falling plastic particles. This can break up the clumps of plastic particles, which is beneficial for subsequent plastic particle screening. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This utility model Figure 1 A schematic diagram of the front structure;

[0022] Figure 3 This utility model Figure 1 Internal structure diagram;

[0023] Figure 4 This utility model Figure 1 A schematic diagram of the spiral blade section;

[0024] Figure 5 This utility model Figure 1 A schematic diagram of the dispersion rod section.

[0025] In the diagram: 1. Base; 2. Second support leg; 3. Return cylinder; 4. Feed pipe; 5. Return pipe; 6. Connecting rod; 7. Connecting sleeve; 8. Second rotating rod; 9. Spiral blade; 10. Discharge pipe; 11. Screening box; 12. First screening plate; 13. Dispersing rod; 14. First rotating rod; 15. First recovery pipe; 16. Second recovery pipe; 17. Third recovery pipe; 18. First support leg; 19. Overlapping ring; 20. Second motor; 21. First motor; 22. Connecting hole. Detailed Implementation

[0026] 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.

[0027] Example 1

[0028] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The diagram shows a plastic granule screening and recycling device, including a base 1, a screening box 11, and a return cylinder 3. The screening box 11 is installed at the top of the base 1, and a first support leg 18 is fixed at its bottom. The return cylinder 3 is installed at the top of the base 1, and a second support leg 2 is fixed at its bottom. A first rotating rod 14 rotates in the middle of the screening box 11, and a dispersing rod 13 is fixed at the top of the first rotating rod 14. A first screening plate 12 and a second screening plate 23 are respectively installed on the surface of the first rotating rod 14. A first motor 21 is installed at the bottom of the first rotating rod 14. The return cylinder 3 is installed on one side of the screening box 11 and is connected to each other by a return pipe 5. A feed pipe 4 is connected to the bottom outer side of the return cylinder 3.

[0029] A return cylinder 3 is installed on one side of the screening box 11. Inside the return cylinder 3, the second motor 20 drives the second rotating rod 8 and the spiral blade 9 to rotate, which can spirally lift the plastic particles entering the return cylinder 3 and raise them to the inside of the connecting sleeve 7, so as to be discharged through the discharge pipe 10 and enter the screening box 11. Inside the screening box 11, the plastic particles are double-screened by the first screening plate 12 and the second screening plate 23. The screened plastic particles enter the return cylinder 3 from the return pipe 5. This cycle is repeated, which can screen the plastic particles repeatedly to keep the plastic particles fully screened. Moreover, the direction of the discharge pipe 10 can be adjusted by rotating the connecting sleeve 7.

[0030] A second rotating rod 8 is rotatably mounted in the middle of the return cylinder 3. A spiral blade 9 is fixed on the surface of the second rotating rod 8. A second motor 20 is installed at the bottom end of the second rotating rod 8. An overlapping ring 19 is fixed on the top side of the return cylinder 3. A connecting sleeve 7 is slidably sleeved on the top of the return cylinder 3. A connecting rod 6 is fixed at the bottom end of the connecting sleeve 7. A connecting hole 22 is opened on the surface of the overlapping ring 19. The connecting rod 6 is slidably inserted into the connecting hole 22. A discharge pipe 10 is connected to the side of the connecting sleeve 7. The outlet end of the discharge pipe 10 is located at the top of the screening box 11.

[0031] The sides of the screening box 11 are respectively connected to a first recycling pipe 15, a second recycling pipe 16 and a third recycling pipe 17. The first recycling pipe 15 is located at the top of the first screening plate 12, the second recycling pipe 16 is located above the second screening plate 23, and the third recycling pipe 17 is located above the bottom of the interior of the screening box 11.

[0032] The second rotating rod 8 is vertically arranged, with its top end protruding upwards from the top end of the return cylinder 3 and lower than the top end of the connecting sleeve 7.

[0033] The connecting sleeve 7 is a circular sleeve structure and is vertically arranged. The connecting rod 6 is vertically arranged. The overlapping ring 19 is a circular ring structure and is horizontally arranged. The connecting sleeve 7 presses against the top of the overlapping ring 19.

[0034] Both the return material cylinder 3 and the screening box 11 are cylindrical structures and are vertically arranged.

[0035] Example 2

[0036] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The diagram shows a plastic granule screening and recycling device, including a base 1, a screening box 11, and a return cylinder 3. The screening box 11 is installed at the top of the base 1, and a first support leg 18 is fixed at its bottom. The return cylinder 3 is installed at the top of the base 1, and a second support leg 2 is fixed at its bottom. A first rotating rod 14 rotates in the middle of the screening box 11, and a dispersing rod 13 is fixed at the top of the first rotating rod 14. A first screening plate 12 and a second screening plate 23 are respectively installed on the surface of the first rotating rod 14. A first motor 21 is installed at the bottom of the first rotating rod 14. The return cylinder 3 is installed on one side of the screening box 11 and is connected to each other by a return pipe 5. A feed pipe 4 is connected to the bottom outer side of the return cylinder 3.

[0037] A return cylinder 3 is installed on one side of the screening box 11. Inside the return cylinder 3, the second motor 20 drives the second rotating rod 8 and the spiral blade 9 to rotate, which can spirally lift the plastic particles entering the return cylinder 3 and raise them to the inside of the connecting sleeve 7, so as to be discharged through the discharge pipe 10 and enter the screening box 11. Inside the screening box 11, the plastic particles are double-screened by the first screening plate 12 and the second screening plate 23. The screened plastic particles enter the return cylinder 3 from the return pipe 5. This cycle is repeated, which can screen the plastic particles repeatedly to keep the plastic particles fully screened. Moreover, the direction of the discharge pipe 10 can be adjusted by rotating the connecting sleeve 7.

[0038] A second rotating rod 8 is rotatably mounted in the middle of the return cylinder 3. A spiral blade 9 is fixed on the surface of the second rotating rod 8. A second motor 20 is installed at the bottom end of the second rotating rod 8. An overlapping ring 19 is fixed on the top side of the return cylinder 3. A connecting sleeve 7 is slidably sleeved on the top of the return cylinder 3. A connecting rod 6 is fixed at the bottom end of the connecting sleeve 7. A connecting hole 22 is opened on the surface of the overlapping ring 19. The connecting rod 6 is slidably inserted into the connecting hole 22. A discharge pipe 10 is connected to the side of the connecting sleeve 7. The outlet end of the discharge pipe 10 is located at the top of the screening box 11.

[0039] The feed pipe 4 is located at the bottom side of the return cylinder 3, which is low and convenient for feeding. Moreover, the plastic particles entering the return cylinder 3 will be rotated and stirred during the spiral lifting process of the spiral blade 9. After that, when the plastic particles enter the screening box 11 through the discharge pipe 10, the first motor 21 drives the dispersing rod 13 to rotate, stirring and dispersing the falling plastic particles. This can separate the clumps of plastic particles, which is beneficial for subsequent plastic particle screening.

[0040] The first rotating rod 14 is vertically arranged, and its top end is not higher than the top end of the screening box 11. The dispersing rod 13 is evenly arranged around the surface of the first rotating rod 14 and is horizontally arranged.

[0041] Working method: A return cylinder 3 is installed on one side of the screening box 11. Inside the return cylinder 3, the second motor 20 drives the second rotating rod 8 and the spiral blade 9 to rotate, which can spirally lift the plastic particles entering the return cylinder 3 and raise them to the inside of the connecting sleeve 7, so as to be discharged through the discharge pipe 10 and enter the screening box 11. Inside the screening box 11, the plastic particles are double-screened by the first screening plate 12 and the second screening plate 23. The screened plastic particles enter the return cylinder 3 from the return pipe 5. This cycle is repeated, which can screen the plastic particles repeatedly to keep the plastic particles fully screened. Moreover, the direction of the discharge pipe 10 can be adjusted by rotating the connecting sleeve 7.

[0042] The feed pipe 4 is located at the bottom side of the return cylinder 3, which is low and convenient for feeding. Moreover, the plastic particles entering the return cylinder 3 will be rotated and stirred during the spiral lifting process of the spiral blade 9. After that, when the plastic particles enter the screening box 11 through the discharge pipe 10, the first motor 21 drives the dispersing rod 13 to rotate, stirring and dispersing the falling plastic particles. This can separate the clumps of plastic particles, which is beneficial for subsequent plastic particle screening.

[0043] 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 plastic pellet screening and recycling device, comprising a base (1), a screening box (11), and a return cylinder (3), characterized in that: The screening box (11) is installed at the top of the base (1), and a first support leg (18) is fixed at its bottom. The return cylinder (3) is installed at the top of the base (1), and a second support leg (2) is fixed at its bottom. A first rotating rod (14) rotates in the middle of the screening box (11). A dispersing rod (13) is fixed at the top of the first rotating rod (14). A first screening plate (12) and a second screening plate (23) are respectively installed on the surface of the first rotating rod (14). A first motor (21) is installed at the bottom of the first rotating rod (14). The return cylinder (3) is installed on one side of the screening box (11) and is connected to each other by a return pipe (5). A feed pipe (4) is connected to the bottom of the outer side of the return cylinder (3).

2. The plastic particle screening and recycling device according to claim 1, characterized in that: A second rotating rod (8) is rotatably installed in the middle of the return cylinder (3). A spiral blade (9) is fixed on the surface of the second rotating rod (8). A second motor (20) is installed at the bottom end of the second rotating rod (8). An overlapping ring (19) is fixed on the top side of the return cylinder (3). A connecting sleeve (7) is slidably sleeved on the top of the return cylinder (3). A connecting rod (6) is fixed at the bottom end of the connecting sleeve (7). A connecting hole (22) is opened on the surface of the overlapping ring (19). The connecting rod (6) is slidably inserted into the connecting hole (22). A discharge pipe (10) is connected to the side of the connecting sleeve (7). The outlet end of the discharge pipe (10) is located at the top of the screening box (11).

3. The plastic particle screening and recycling device according to claim 1, characterized in that: The side of the screening box (11) is connected to a first recycling pipe (15), a second recycling pipe (16) and a third recycling pipe (17). The first recycling pipe (15) is located at the top of the first screening plate (12), the second recycling pipe (16) is located above the second screening plate (23), and the third recycling pipe (17) is located above the bottom of the screening box (11).

4. The plastic particle screening and recycling device according to claim 1, characterized in that: The first rotating rod (14) is set vertically, and its top end is not higher than the top end of the screening box (11). The dispersing rod (13) is evenly surrounding the surface of the first rotating rod (14) and is set horizontally.

5. A plastic particle screening and recycling device according to claim 2, characterized in that: The second rotating rod (8) is set vertically, and its top end protrudes upward from the top end of the return cylinder (3) and is lower than the top end of the connecting sleeve (7).

6. The plastic particle screening and recycling device according to claim 2, characterized in that: The connecting sleeve (7) is a circular sleeve structure and is vertically arranged. The connecting rod (6) is vertically arranged. The overlapping ring (19) is a circular ring structure and is horizontally arranged. The connecting sleeve (7) presses on the top of the overlapping ring (19).

7. The plastic particle screening and recycling device according to claim 1, characterized in that: Both the return cylinder (3) and the screening box (11) are cylindrical structures and are vertically arranged.

Images