A continuous cleaning device for plastics
By designing a plastic cleaning device with a rotating drum, limiting strip, auger, and lifting pipe, the problem of low cleaning efficiency in the existing technology is solved, enabling rapid cleaning and continuous discharge of plastic fragments and improving cleaning efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI SHENGZHIYUAN RENEWABLE RESOURCES CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-06-16
AI Technical Summary
Existing plastic cleaning devices cannot achieve continuous cleaning; the cleaning fluid must be drained before the plastic can be discharged, resulting in low efficiency.
A plastic cleaning device comprising a rotating drum, limiting strips, an auger, a lifting pipe, and spiral blades was designed. Through the rotation of the rotating drum, the beating and tumbling of the limiting strips, the pushing of the auger, and the lifting of the lifting pipe, the plastic fragments are quickly cleaned and continuously discharged.
It enables rapid cleaning of low-density plastic fragments, and the cleaning solution can be directly discharged after cleaning without needing to be drained, which greatly improves cleaning efficiency.
Smart Images
Figure CN224359040U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of plastic production technology, and in particular to a continuous cleaning device for plastics. Background Technology
[0002] With the increasing consumption of plastic products, the amount of waste plastic is also constantly increasing. In my country, waste plastic mainly consists of plastic filaments and woven products, foam plastics, plastic packaging boxes and containers, daily-use plastic products, plastic bags, and agricultural waste. The recycling of waste plastic has become a top priority, and its reuse is widely adopted by modern chemical enterprises. After manual screening and sorting, waste plastic undergoes processes such as washing, crushing, granulation, and modification to become various transparent or opaque materials. These are then further classified according to their quality, ultimately becoming reusable recycled materials.
[0003] Patent application number CN202420502911.3 discloses a plastic recycling and cleaning device, including a barrel body. A crushing barrel is fixedly connected to the top of the barrel body and is in communication with the barrel body. A feed pipe is fixedly connected to the side wall of the crushing barrel. The device also includes: a servo motor fixedly connected to the top of the crushing barrel; a rotating shaft fixedly connected to the bottom of the servo motor; the rotating shaft extending through the crushing barrel into the inner cavity of the barrel; a cutter fixedly connected to the side wall of the rotating shaft inside the crushing barrel; a rotating column fixedly connected to the side wall of the rotating shaft; and a water tank fixedly connected to the top of the barrel body. A pressure plate is slidably connected to the inner wall of the water tank. When the rotating shaft rotates, it drives the stirring rod on its side wall to rotate, thereby stirring the crushed plastic in the inner cavity of the barrel. Combined with the cleaning liquid in the inner cavity of the barrel, the plastic can be thoroughly cleaned. After cleaning, a filter plate filters the plastic down, and then it is discharged through the discharge pipe. This type of cleaning device requires the cleaning liquid to be drained before the plastic can be discharged, making continuous cleaning of the plastic impossible.
[0004] This invention was developed to address the shortcomings of existing technologies. Summary of the Invention
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a continuous cleaning device for plastics.
[0006] This invention can be achieved through the following technical solutions:
[0007] This invention discloses a continuous cleaning device for plastics, comprising a cleaning tank, a rotating drum disposed within the cleaning tank, multiple limiting strips evenly fixed to the inner wall of the rotating drum, filter holes evenly disposed on the rotating drum, a sealing plate fixed to one end of the rotating drum, a rotary motor fixed to the cleaning tank, the output end of the rotary motor fixed to the sealing plate, a baffle fixed inside the cleaning tank, the baffle being disposed inside the rotating drum and rotatably connected to the rotating drum, and a feeding device disposed on the cleaning tank, the feeding device comprising a feeding device inclined and fixed to the cleaning tank. The feeding pipe has a baffle at its end and a feeding shaft inside. The feeding shaft is driven to rotate by a feeding motor. An auger is also fixed on the feeding shaft. A hopper is also fixed on the feeding pipe. A discharge pipe is also fixed on the rotating drum. A limiting ring surrounding the rotating drum is also fixed in the cleaning tank at the position of the discharge pipe. A lifting pipe is also fixed on the limiting ring at a position corresponding to the discharge pipe. A lifting motor is fixed above the lifting pipe. A lifting shaft is fixed at the output end of the lifting motor. A spiral blade is also spirally fixed on the lifting shaft inside the lifting pipe. After PE plastic is recycled, it is crushed, and the crushed plastic fragments are fed into a hopper. Cleaning liquid is drained from the washing tank. A feeding motor drives an auger to rotate, pushing the plastic fragments into a rotating drum. The fragments float at the top of the drum. The rotating drum is driven by a rotary motor to rotate, and when a limiting strip contacts the plastic at the top of the drum, it pushes the fragments with the drum's rotation. As the limiting strip tilts to a certain angle, the plastic floats upward and separates from the limiting strip. This process of beating and tumbling the plastic fragments achieves rapid cleaning. Furthermore, because the limiting ring blocks the discharge pipe, the plastic fragments are not discharged from the pipe. After the plastic fragments have been cleaned for a period of time, the rotating drum stops when the discharge pipe on the drum reaches the position of the lifting pipe. The plastic fragments float to the position of the spiral blade inside the lifting pipe. The spiral blade is driven to rotate by the lifting motor, and the plastic fragments rise inside the lifting pipe and are discharged and collected through the opening at the top of the lifting pipe. After the plastic fragments are discharged, the plastic fragments to be cleaned are discharged back into the rotating drum through the feeding device. This device can quickly clean plastic fragments with low density, and after cleaning, the plastic fragments can be discharged directly and the plastic fragments to be cleaned can be added again. The cleaned plastic fragments can be taken out without draining the cleaning liquid, which greatly improves the cleaning efficiency of plastics.
[0008] Preferably, a pneumatic butterfly valve is also fixed at the bottom of the lifting pipe. During debris cleaning, the lifting pipe is closed by the pneumatic butterfly valve to prevent unwashed plastic debris from entering the lifting pipe.
[0009] Preferably, a material collection trough is also fixed on the rotating drum, the top of the material collection trough is inclined, and the discharge pipe is fixed at the highest position of the top of the material collection trough. The upwardly inclined material collection trough facilitates the collection of all the washed plastic fragments to the discharge pipe.
[0010] Preferably, a sliding plate is also fixed obliquely on the lifting pipe. After the washed plastic fragments are discharged from the lifting pipe, they fall onto the sliding plate and are collected after sliding down the plate.
[0011] Preferably, a water supply pipe is provided above the cleaning tank, and a drain pipe with a valve is fixed at the bottom of the cleaning tank.
[0012] Compared with existing technologies, the present invention has the following advantages:
[0013] This device can quickly clean low-density plastic fragments, and after cleaning, the plastic fragments can be discharged directly and new plastic fragments to be cleaned can be added. The cleaned plastic fragments can be removed without draining the cleaning solution, which greatly improves the cleaning efficiency of plastics. Attached Figure Description
[0014] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:
[0015] Figure 1 This is a schematic diagram of the structure of the present invention;
[0016] Figure 2 This is a schematic diagram of the structure of the present invention from another angle;
[0017] Figure 3 for Figure 2 Sectional view at point AA;
[0018] In the diagram: 1. Cleaning tank; 2. Water supply pipe; 3. Sewage discharge pipe; 4. Rotary drum; 5. Filter hole; 6. Material collection tank; 7. Sealing plate; 8. Rotary motor; 9. Baffle; 10. Feeding device; 11. Feeding pipe; 12. Feeding shaft; 13. Screw; 14. Feeding motor; 15. Hopper; 16. Limiting strip; 17. Discharge pipe; 18. Limiting ring; 19. Lifting pipe; 20. Lifting shaft; 21. Lifting motor; 22. Spiral blade; 23. Sliding plate; Detailed Implementation
[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings:
[0020] Example 1:
[0021] like Figures 1 to 3As shown, this embodiment discloses a continuous cleaning device for plastics, including a cleaning tank 1, a rotating drum 4 disposed inside the cleaning tank 1, multiple limiting strips 16 evenly fixed on the inner wall of the rotating drum 4, filter holes 5 evenly disposed on the rotating drum 4, a sealing plate 7 fixed to one end of the rotating drum 4, a rotary motor 8 fixed on the cleaning tank 1, the output end of the rotary motor 8 fixed to the sealing plate 7, a baffle 9 fixed inside the cleaning tank 1, the baffle 9 disposed inside the rotating drum 4 and rotatably connected to the rotating drum 4, and a feeding device 10 disposed on the cleaning tank 1, the feeding device 10 including a feeding pipe 11 inclinedly fixed on the cleaning tank 1, the feeding pipe 11 ending at... The end passes through the baffle 9, and a feeding shaft 12 is provided inside the feeding pipe 11. The feeding shaft 12 is driven to rotate by the feeding motor 14. An auger 13 is also fixed on the feeding shaft 12. A hopper 15 is also fixed on the feeding pipe 11. A discharge pipe 17 is also fixed on the rotating drum 4. A limiting ring 18 surrounding the rotating drum 4 is also fixed in the cleaning tank 1 at the position of the discharge pipe 17. A lifting pipe 19 is also fixed on the limiting ring 18 at the position corresponding to the discharge pipe 17. A lifting motor 21 is fixed above the lifting pipe 19. A lifting shaft 20 is fixed at the output end of the lifting motor 21. A spiral blade 22 is also spirally fixed on the lifting shaft 20 inside the lifting pipe 19. After PE plastic is recycled, it is crushed, and the crushed plastic fragments are fed into hopper 15. Cleaning liquid is discharged into cleaning tank 1. The feeding motor 14 drives the auger 13 to rotate, pushing the plastic fragments into the rotating drum 4. The plastic fragments float at the top of the rotating drum 4. The rotating motor 8 drives the rotating drum 4 to rotate. When the limiting strip 16 contacts the plastic at the top of the rotating drum 4, it pushes the plastic fragments to rotate with the drum 4. When the limiting strip 16 tilts to a certain angle with the rotating drum 4, the plastic floats upward and separates from the limiting strip 16. This process of beating and tumbling the plastic fragments achieves rapid cleaning. Furthermore, because the limiting ring 18 blocks the discharge pipe 17, the plastic fragments will not be discharged from the discharge pipe 17. After the plastic fragments have been washed for a period of time, the discharge pipe 17 on the rotating drum 4 reaches the position of the lifting pipe 19 and the rotating drum 4 stops. The plastic fragments float to the position of the spiral blade 22 inside the lifting pipe 19. The spiral blade 22 is driven to rotate by the lifting motor 21, and the plastic fragments rise inside the lifting pipe 19 and are discharged and collected through the opening at the top of the lifting pipe 19. After the plastic fragments are discharged, the plastic fragments to be washed are discharged into the rotating drum 4 again through the feeding device 10. This device can quickly wash plastic fragments with low density, and after washing, the plastic fragments can be discharged directly and the plastic fragments to be washed can be added again. The washed plastic fragments can be taken out without draining the cleaning liquid, which greatly improves the washing efficiency of plastics.
[0022] The rotating drum 4 is also equipped with a material collection trough 6, which is inclined at the top, and the discharge pipe 17 is fixed at the highest point of the material collection trough 6. The upwardly inclined material collection trough 6 facilitates the collection of all the cleaned plastic fragments to the discharge pipe 17.
[0023] The lifting pipe 19 is also inclinedly fixed with a sliding plate 23. After the plastic fragments are cleaned, they fall onto the sliding plate 23 after being discharged from the lifting pipe 19, and are collected after sliding down the sliding plate 23.
[0024] The cleaning tank 1 is equipped with a water supply pipe 2 above it and a drain pipe 3 with a valve at the bottom of the cleaning tank 1.
[0025] Example 2:
[0026] This embodiment discloses a continuous plastic cleaning device. Based on the structure and principle of Embodiment 1, this embodiment also has a pneumatic butterfly valve fixed at the bottom of the lifting pipe 19. During debris cleaning, the lifting pipe 19 is closed by the pneumatic butterfly valve to prevent uncleaned plastic debris from entering the lifting pipe 19.
[0027] The above are merely preferred embodiments of the present invention. It should be noted that, for those skilled in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be considered within the scope of protection of the present invention.
Claims
1. A continuous cleaning device for plastics, characterized in that, The device includes a cleaning tank containing a rotating drum. Multiple limiting strips are evenly fixed to the inner wall of the rotating drum. Filter holes are evenly distributed on the rotating drum. A sealing plate is fixed to one end of the rotating drum. A rotary motor is also fixed to the cleaning tank, with its output end fixed to the sealing plate. A baffle is also fixed inside the cleaning tank, rotatably connected to the rotating drum. A feeding device is also provided on the cleaning tank, comprising a feeding pipe inclinedly fixed to the cleaning tank. The end of the feeding pipe... Passing through the baffle, a feeding shaft is installed inside the feeding pipe. The feeding shaft is driven to rotate by a feeding motor. An auger is also fixed on the feeding shaft. A hopper is also fixed on the feeding pipe. A discharge pipe is also fixed on the rotating drum. A limiting ring surrounding the rotating drum is also fixed in the cleaning tank at the position of the discharge pipe. A lifting pipe is also fixed on the limiting ring at a position corresponding to the discharge pipe. A lifting motor is fixed above the lifting pipe. A lifting shaft is fixed at the output end of the lifting motor. A spiral blade is also spirally fixed on the lifting shaft inside the lifting pipe.
2. The continuous cleaning device for plastics according to claim 1, characterized in that, A pneumatic butterfly valve is also fixed at the bottom of the riser pipe.
3. The continuous cleaning device for plastics according to claim 1, characterized in that, A material gathering trough is also fixed on the rotating drum. The top of the material gathering trough is inclined, and the discharge pipe is fixed at the highest position of the top of the material gathering trough.
4. The continuous cleaning device for plastics according to claim 1, characterized in that, A sliding plate is also fixed at an incline on the lifting pipe.
5. The continuous cleaning device for plastics according to claim 1, characterized in that, A water supply pipe is also installed above the cleaning tank, and a drain pipe with a valve is fixed at the bottom of the cleaning tank.