Waste plastic recovery impurity separation device

The motor-driven gear and friction wheel system rotates the filter cartridge with multiple filter holes. Combined with the synchronous wheel and beater belt, it solves the problem that traditional devices cannot comprehensively separate multiple impurities, achieving efficient separation and anti-clogging of waste plastics, and improving separation efficiency and equipment stability.

CN224183469UActive Publication Date: 2026-05-01JIANGXI RONGGAN RECYCLING RESOURCES RECYCLING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI RONGGAN RECYCLING RESOURCES RECYCLING CO LTD
Filing Date
2025-05-15
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional waste plastic recycling equipment can only separate single types of impurities and cannot comprehensively separate impurities of various particle sizes, which affects the quality of recycled plastics and equipment safety.

Method used

A system of gears and friction wheels driven by a motor was designed to rotate outer and inner filter cartridges with different filter hole sizes. Combined with a synchronous wheel and a beater belt, it realizes a multi-screening and anti-clogging waste plastic recycling impurity separation device.

Benefits of technology

It enables multiple screening and separation collection of waste plastic mixtures, prevents clogging, improves separation efficiency and equipment operation stability, and saves costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of waste plastic treatment, and discloses a waste plastic recovery impurity separation device which comprises a washing table and a plurality of supporting columns, the outer wall of the washing table is fixedly connected with a motor, the output end of the motor is fixedly connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a gear and a friction wheel, and the friction wheel is fixedly connected with the washing table. The tooth end of the gear is in meshed connection with a ring gear, the inner wall of the ring gear is fixedly connected with an outer filter cylinder, the inner wall of the outer filter cylinder is fixedly connected with a plurality of connecting rings, the inner walls of the connecting rings are fixedly connected with an inner filter cylinder, and the top end of the supporting column is provided with an anti-blocking assembly. According to the utility model, the motor simultaneously drives the gear and the friction wheel to rotate, the two filter cartridges with different filter hole sizes are simultaneously driven to rotate through the meshing of the gear and the friction between the friction wheel and the friction ring, and the discharge plate and the collection tank of each filter cartridge are separately arranged, so that multiple screening and separation collection of waste plastic mixtures are realized.
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Description

A waste plastic recycling impurity separation device Technical Field

[0001] This utility model relates to the field of waste plastic treatment technology, and in particular to a waste plastic recycling impurity separation device. Background Technology

[0002] With the continuous rise in plastic consumption, the recycling of waste plastics has become an important measure to alleviate resource shortages and reduce environmental pollution. In the waste plastic recycling process, impurity separation is a crucial step. Because waste plastics come from a wide range of sources, they are often mixed with various impurities such as metals, sand, and textiles. If these impurities are not effectively separated, not only will the quality of the recycled plastics be reduced, but it may also damage subsequent processing equipment. Therefore, it is necessary to use waste plastic recycling impurity separation devices to separate and collect impurities from waste plastic mixtures for reuse.

[0003] Traditional waste plastic recycling impurity separation devices involve directly placing the waste plastic mixture into the device, rinsing it with liquid, and then manually or magnetically adsorbing it. However, traditional devices can only separate a single type of impurity. For example, magnetic separators are only for metallic impurities, and vibrating screens can only handle large particles. They cannot comprehensively separate impurities of various particle sizes. Summary of the Invention

[0004] To overcome the above shortcomings, this utility model provides a waste plastic recycling impurity separation device, which aims to improve the problem that traditional devices can only screen a single type of impurity and cannot comprehensively separate impurities of various particle sizes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste plastic recycling impurity separation device, comprising a rinsing platform and multiple support columns. A motor is fixedly connected to the outer wall of the rinsing platform, and a rotating shaft is fixedly connected to the output end of the motor. A gear and a friction wheel are fixedly connected to the outer wall of the rotating shaft. A ring gear is meshed with the tooth end of the gear. An outer filter cartridge is fixedly connected to the inner wall of the ring gear. Multiple connecting rings are fixedly connected to the inner wall of the outer filter cartridge. An inner filter cartridge is fixedly connected to the inner wall of the connecting rings. A discharge plate is provided at one end of both the outer and inner filter cartridges. A collection trough is provided at one end of the discharge plate. An anti-clogging component is provided at the top of the support columns.

[0006] Preferably, the anti-blocking component includes a rotating rod, which is rotatably connected to the opposite side of two support columns. The outer walls of the rotating shaft and the rotating rod are fixedly connected to synchronous pulleys. The outer walls of the two synchronous pulleys are fitted with synchronous belts, and the outer walls of the rotating rod are fixedly connected to multiple beater belts.

[0007] Preferably, one of the collection tanks is located at the bottom of the outer filter cartridge, the inner wall of the collection tank is connected to a return water pipe, the outer wall of the return water pipe is equipped with a water pump, the other end of the return water pipe is connected to the inner wall of the rinsing platform, and the inner wall of the rinsing platform is equipped with multiple spray nozzles.

[0008] Preferably, a friction ring is fixedly connected to the outer wall of the outer filter cartridge, and the friction ring and the outer wall of the friction wheel are slidably connected.

[0009] Preferably, the outer wall of the rinsing station is provided with a discharge port, which is located at one end of the inner filter cylinder, one of the discharge plates is located at the other end of the inner filter cylinder, and one of the discharge plates is located at one end of the outer filter cylinder.

[0010] Preferably, both the outer and inner filter cylinders have multiple filter holes on their inner walls, and the inner diameter of the filter holes in the outer filter cylinder is smaller than that in the inner filter cylinder.

[0011] Preferably, multiple discharge plates are fixedly connected to the outer wall of the support column, and one collection trough is fixedly connected to the outer wall of the support column.

[0012] Preferably, the outer wall of the beater belt is slidably connected to the outer wall of the outer filter cartridge.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the motor drives the gear and friction wheel to rotate simultaneously. Through gear meshing and friction between the friction wheel and the friction ring, two filter cylinders with different filter hole sizes are driven to rotate simultaneously. The discharge plate and collection tank of each filter cylinder are set separately, realizing multiple screening and separation collection of waste plastic mixture.

[0015] 2. In this utility model, by fitting synchronous wheels on the outer wall of the rotating shaft and the rotating rod, a single motor can drive multiple components to run simultaneously. By installing multiple beating belts on the outer wall of the rotating rod, the rotating filter cartridge is beated, causing the objects blocking the filter holes to fall off, thus preventing clogging during the separation process. Attached Figure Description

[0016] Figure 1 is a front view of a waste plastic recycling impurity separation device proposed in this utility model;

[0017] Figure 2 is a plan view of a waste plastic recycling impurity separation device proposed in this utility model;

[0018] Figure 3 is a disassembled view of the filter cartridge of a waste plastic recycling impurity separation device proposed in this utility model;

[0019] Figure 4 is a schematic diagram of the separation components of a waste plastic recycling impurity separation device proposed in this utility model.

[0020] Figure 5 is a schematic diagram of the anti-clogging component of a waste plastic recycling impurity separation device proposed in this utility model.

[0021] Legend:

[0022] 1. Washing platform; 2. Support column; 3. Motor; 4. Rotating shaft; 5. Gear; 6. Ring gear; 7. Outer filter cartridge; 8. Connecting ring; 9. Inner filter cartridge; 10. Friction ring; 11. Friction wheel; 12. Discharge plate; 13. Collection tank; 14. Synchronous pulley; 15. Synchronous belt; 16. Rotating rod; 17. Beating belt; 18. Nozzle; 19. Return water pipe; 20. Water pump. Detailed Implementation

[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Referring to Figures 1, 2, and 3, one embodiment of this utility model provides a waste plastic recycling impurity separation device, including a washing platform 1 and multiple support columns 2. A motor 3 is fixedly connected to the outer wall of the washing platform 1, and a rotating shaft 4 is fixedly connected to the output end of the motor 3. A gear 5 and a friction wheel 11 are fixedly connected to the outer wall of the rotating shaft 4. A ring gear 6 is meshed with the tooth end of the gear 5. An outer filter cylinder 7 is fixedly connected to the inner wall of the ring gear 6. Multiple connecting rings 8 are fixedly connected to the inner wall of the outer filter cylinder 7. An inner filter cylinder 9 is fixedly connected to the inner wall of the connecting rings 8. A discharge point is provided at one end of both the outer filter cylinder 7 and the inner filter cylinder 9. The plate 12 has a collection trough 13 at one end, and the top of the support column 2 is equipped with an anti-clogging component. The outer wall of the rinsing table 1 has a discharge port, which is located at one end of the inner filter cylinder 9. One discharge plate 12 is located at the other end of the inner filter cylinder 9, and another discharge plate 12 is located at one end of the outer filter cylinder 7. The inner walls of both the outer filter cylinder 7 and the inner filter cylinder 9 have multiple filter holes that are opened and penetrate through them. The inner diameter of the filter holes in the outer filter cylinder 7 is smaller than that in the inner filter cylinder 9. The multiple discharge plates 12 are fixedly connected to the outer wall of the support column 2, and one collection trough 13 is fixedly connected to the outer wall of the support column 2.

[0025] Specifically, after the waste plastic mixture enters from the top of the rinsing platform 1, it is rinsed and then enters the inner filter cylinder 9 from the discharge port. The motor 3 drives the gear 5 and friction wheel 11 to rotate, and then the gear 5 and friction wheel 11 drive the ring gear 6 and friction ring 10 to rotate respectively. The ring gear 6 and friction ring 10 are both fixed to the outer wall of the outer filter cylinder 7. The outer filter cylinder 7 and the inner filter cylinder 9 are fixedly connected by multiple connecting rings 8, which realizes that the motor 3 can drive the outer filter cylinder 7 and the inner filter cylinder 9 to rotate simultaneously. The filter has multiple filter holes, and the diameter of the filter holes in the outer filter cylinder 7 is smaller than that in the inner filter cylinder 9. When the mixture slides down, it will be screened out from the filter holes of the outer filter cylinder 7 and the inner filter cylinder 9 according to its size. Large materials slide directly to the discharge plate 12 at the rear end of the inner filter cylinder 9 and enter the collection tank 13. Medium-sized materials slide to the discharge plate 12 at the rear end of the outer filter cylinder 7 and enter the collection tank 13. Small materials and wastewater fall directly from the filter holes of the outer filter cylinder 7 into the collection tank 13 at the bottom, thus realizing triple screening and separation collection of the plastic mixture.

[0026] Referring to Figures 1, 2, and 5, the anti-clogging assembly includes a rotating rod 16, which is rotatably connected to the opposite side of the two support columns 2. The outer walls of the rotating shaft 4 and the rotating rod 16 are both fixedly connected to synchronous pulleys 14. The outer walls of the two synchronous pulleys 14 are fitted with synchronous belts 15. The outer walls of the rotating rod 16 are fixedly connected to multiple beating belts 17, and the outer walls of the beating belts 17 are slidably connected to the outer wall of the outer filter cartridge 7.

[0027] Specifically, by installing synchronous pulleys 14 on the outer walls of both the rotating shaft 4 and the rotating rod 16, and transmitting power from the motor 3 to the rotating rod 16 via the synchronous belt 15, the synchronous rotation of multiple rotating devices driven by a single motor 3 is achieved, saving costs. When the multiple beating belts 17 installed on the rotating rod 16 are driven to rotate, they will repeatedly beat the outer filter cartridge 7 due to the soft rubber material. Through beating and vibration, the mixture stuck in the filter holes of the outer filter cartridge 7 will be knocked off, preventing the entire separation device from becoming clogged.

[0028] Referring to Figures 1 and 2, one of the collection tanks 13 is located at the bottom of the outer filter cartridge 7. A return water pipe 19 runs through the inner wall of the collection tank 13. A water pump 20 is installed on the outer wall of the return water pipe 19. The other end of the return water pipe 19 runs through the inner wall of the rinsing platform 1. Multiple nozzles 18 are installed on the inner wall of the rinsing platform 1.

[0029] Specifically, the smallest piece of waste plastic mixture and the rinsing wastewater will fall directly from the filter holes of the outer filter cylinder 7 to the bottom collection tank 13. The water pump 20 will drive the wastewater through the return pipe 19 and back into the rinsing platform 1. After filtration, the waste plastic mixture placed in the rinsing platform 1 will be rinsed again through the nozzle 18, realizing the reuse of water resources.

[0030] Referring to Figure 3, a friction ring 10 is fixedly connected to the outer wall of the outer filter cartridge 7, and the outer walls of the friction ring 10 and the friction wheel 11 are slidably connected.

[0031] Specifically, the friction wheel 11 provides support for the rotation of the friction ring 10. At the same time, through friction, the friction wheel 11 rotates when it is driven to rotate by the rotating shaft 4, which in turn drives the friction ring 10 to rotate. The friction ring 10 then drives the outer filter cartridge 7 to rotate, so that the rotation of the front and rear ends of the outer filter cartridge 7 remains stable and synchronous, and together they drive the plastic mixture to slide down for separation and screening.

[0032] Working principle: When using this separation device, the motor 3 needs to be started first, and then the waste plastic mixture is loaded into the top of the rinsing platform 1. After rinsing the mixture with the nozzle 18, the mixture will slide from the outlet of the rinsing platform 1 into the inner filter cartridge 9. The motor 3 drives the rotating shaft 4 to rotate, and then the rotating shaft 4 drives the gear 5 and friction wheel 11 on it to rotate together. Through meshing, the gear 5 will drive the ring gear 6 to rotate, and the friction wheel 11 will also drive the friction ring 10 to rotate through friction. The ring gear 6 and friction ring 10 are fixed on the outer wall of the outer filter cartridge 7, and thus together drive the outer filter cartridge 7 to rotate. The outer filter cartridge 7 will drive the inner filter cartridge 9 to rotate synchronously through multiple connecting rings 8. After sliding down, the mixture will first slide down the inner wall of the inner filter cylinder 9. Since both the outer filter cylinder 7 and the inner filter cylinder 9 have multiple filter holes, and the inner diameter of the filter hole of the outer filter cylinder 7 is smaller than that of the inner filter cylinder 9, different sized pieces in the mixture will fall from the filter holes. Larger pieces will slide down the inner filter cylinder 9 from the discharge plate 12 to the collection tank 13. Medium-sized pieces will fall from the filter holes of the inner filter cylinder 9 into the outer filter cylinder 7, and then slide down from the discharge plate 12 to the collection tank 13. Small pieces and rinsing wastewater will fall directly from the filter holes of the outer filter cylinder 7 to the bottom collection tank 13. Thus, the separation and screening of impurities and plastics are completed according to the size of different pieces in the waste plastic mixture.

[0033] The synchronous wheel 14 installed on the right end of the rotating shaft 4 will be driven to rotate, and the power of the motor 3 will be transmitted to the rotating rod 16 through the synchronous belt 15. When the rotating rod 16 rotates, the multiple beater belts 17 installed on the rotating rod 16 will rotate and beat the outer wall of the outer filter cylinder 7, knocking off the material stuck in the filter hole of the outer filter cylinder 7 and preventing the filter hole from being blocked.

[0034] The wastewater will be filtered again through the return pipe 19 by the water pump 20 and returned to the rinsing table 1 for recycling.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waste plastic recycling impurity separation device, comprising a rinsing table (1) and multiple support columns (2), characterized in that: A motor (3) is fixedly connected to the outer wall of the rinsing platform (1). A rotating shaft (4) is fixedly connected to the output end of the motor (3). A gear (5) and a friction wheel (11) are fixedly connected to the outer wall of the rotating shaft (4). A ring gear (6) is meshed with the tooth end of the gear (5). An outer filter cylinder (7) is fixedly connected to the inner wall of the ring gear (6). Multiple connecting rings (8) are fixedly connected to the inner wall of the outer filter cylinder (7). An inner filter cylinder (9) is fixedly connected to the inner wall of the connecting rings (8). A discharge plate (12) is provided at one end of both the outer filter cylinder (7) and the inner filter cylinder (9). A collection trough (13) is provided at one end of the discharge plate (12). An anti-clogging component is provided at the top of the support column (2).

2. The waste plastic recycling impurity separation device according to claim 1, characterized in that: The anti-blocking component includes a rotating rod (16), which is rotatably connected to the opposite side of two support columns (2). The outer walls of the rotating shaft (4) and the rotating rod (16) are both fixedly connected to synchronous pulleys (14). The outer walls of the two synchronous pulleys (14) are fitted with synchronous belts (15). The outer walls of the rotating rod (16) are fixedly connected to multiple slapping belts (17).

3. The waste plastic recycling impurity separation device according to claim 1, characterized in that: One of the collection tanks (13) is located at the bottom of the outer filter cylinder (7). The inner wall of the collection tank (13) is connected to a return water pipe (19). A water pump (20) is installed on the outer wall of the return water pipe (19). The other end of the return water pipe (19) is connected to the inner wall of the rinsing platform (1). The inner wall of the rinsing platform (1) is provided with multiple nozzles (18).

4. The waste plastic recycling impurity separation device according to claim 1, characterized in that: The outer wall of the outer filter cartridge (7) is fixedly connected to a friction ring (10), and the outer wall of the friction ring (10) and the friction wheel (11) are slidably connected.

5. The waste plastic recycling impurity separation device according to claim 1, characterized in that: The outer wall of the rinsing station (1) is provided with a discharge port, which is located at one end of the inner filter cylinder (9), and one of the discharge plates (12) is located at the other end of the inner filter cylinder (9), and one of the discharge plates (12) is located at one end of the outer filter cylinder (7).

6. The waste plastic recycling impurity separation device according to claim 1, characterized in that: The inner walls of both the outer filter cylinder (7) and the inner filter cylinder (9) are provided with multiple filter holes, and the inner diameter of the filter hole of the outer filter cylinder (7) is smaller than that of the filter hole of the inner filter cylinder (9).

7. The waste plastic recycling impurity separation device according to claim 1, characterized in that: Multiple discharge plates (12) are fixedly connected to the outer wall of the support column (2), and one collection trough (13) is fixedly connected to the outer wall of the support column (2).

8. The waste plastic recycling impurity separation device according to claim 2, characterized in that: The outer wall of the beater belt (17) is slidably connected to the outer wall of the outer filter cylinder (7).