Plastic waste recycling device

Abstract

The invention relates to the field of plastic waste recycling, in particular to a plastic waste recycling device which comprises a cleaning barrel erected on the ground, a plurality of drain outlets are formed in the lower end of the cleaning barrel, a plurality of discharging pipes are arranged on the outer circle of the upper half portion of the cleaning barrel in a circumferential array mode, and each discharging pipe is obliquely arranged downwards. A lifting plate is arranged in the cleaning barrel, multiple shifting plates are arranged on the upper surface of the lifting plate in a circumferential array mode, a rotating shaft is fixedly connected to the center of the upper surface of the lifting plate, and a driving assembly driving the rotating shaft to rotate is arranged at the upper end of the rotating shaft; after sewage in the cleaning barrel is completely discharged, the water supply pipe supplies water again, water flow washes the cleaned plastic sheet, the supplied water is not only used for final cleaning of dirt on the surface of the plastic sheet, meanwhile, the water flow can also clean the inner side wall of the cleaning barrel, and the edge of the outer ring of the lifting plate abuts against the inner side wall of the cleaning barrel. And water flows to the inner side wall of the cleaning barrel from the lifting plate, residual dirt on the inner surface of the cleaning barrel can be finally cleaned, and full utilization of the water is achieved.

Description

Technical Field

[0001] This invention relates to the field of plastic waste recycling, specifically a plastic waste recycling and reuse device. Background Technology

[0002] Recycling and reusing plastic waste is an important way to reduce environmental pollution and conserve resources. It can effectively reduce the environmental burden of plastic waste, reduce the demand for new raw materials, and reduce energy consumption. It is also an important part of the circular economy and helps to achieve sustainable development.

[0003] The recycling and reuse of plastic waste involves multiple stages, including sorting, treatment, processing and reuse. One of the treatment stages is cleaning the recycled plastic. The large volume of recycled plastic is crushed into plastic flakes by a crusher. After vibration screening, the dirt is removed before the plastic is put into the cleaning equipment for further cleaning.

[0004] Currently, cleaning equipment typically operates on an assembly line basis. Plastic sheets are continuously fed into a water tank via a conveyor belt, while water is continuously added to the tank. At the end of the tank, the cleaned plastic sheets are discharged along with the wastewater and then collected for final cleaning. This process consumes a large amount of water, resulting in significant water waste, which violates the requirements of a circular economy and sustainable development. Furthermore, the continuous water supply while the amount of plastic sheets added during the cleaning process inevitably leads to water waste. Moreover, a large amount of dirt accumulates in the tank during the cleaning process and cannot be drained away with the flowing water, affecting the cleanliness of the water on the plastic sheets.

[0005] Therefore, a plastic waste recycling and reuse device is proposed to address the above problems. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the plastic waste recycling and reuse device of the present invention includes a washing tank erected on the ground, a plurality of sewage outlets provided at the lower end of the washing tank, and a plurality of discharge pipes arranged in a circular array around the outer half of the upper part of the washing tank, each discharge pipe being inclined downward. The cleaning tank is equipped with a lifting plate. Multiple levers are arranged in a circular array on the upper surface of the lifting plate. A rotating shaft is fixed to the center of the upper surface of the lifting plate. A drive assembly is provided at the upper end of the rotating shaft to drive its rotation. The drive assembly is mounted on the ground through the lifting assembly. The lifting assembly includes symmetrically arranged support rods outside the cleaning tub. Each support rod has a slotted hole, and a lead screw is rotatably connected to each slotted hole. The upper half of the two lead screws are threadedly connected to a lifting platform. A drive assembly is installed on the upper surface of the lifting platform, and multiple water supply pipes are also provided on the lifting platform.

[0008] Preferably, the lifting plate is shaped like a frustum; each of the lifting plates has multiple notches.

[0009] Preferably, the cleaning tub includes an inner cylinder and an outer cylinder, both the upper and lower ends of the inner cylinder and the outer cylinder are sealed and fixed by annular end plates, and the lower end plate is provided with multiple drain ports; Each of the discharge pipes extends downwards along the inner wall of the inner cylinder to the outside of the outer cylinder, and the bottom plate of each discharge pipe is hollowed out at the part between the inner and outer cylinders; multiple through holes are opened in the lower half of the outer ring of the inner cylinder, and each through hole communicates with the cavity between the inner and outer cylinders.

[0010] Preferably, each of the through holes is provided with an anti-backflow nozzle at the outer edge of the hole, each anti-backflow nozzle is flared towards the inlet of the inner cylinder, and each anti-backflow nozzle is narrowed towards the outlet of the cavity.

[0011] Preferably, each of the anti-backflow nozzles is inclined downwards.

[0012] Preferably, an L-shaped plate is provided on the inner side of each support rod, the horizontal end of each L-shaped plate is threaded to the lower half of the lead rod close to it, the vertical end of each L-shaped plate extends to the bottom of the cleaning tank, and the two vertical ends of the L-shaped plates are fixed to a base plate. Two arc-shaped plates are symmetrically arranged on the base plate, and multiple plugs are provided on each arc-shaped plate. The plugs are used to seal the drain outlet.

[0013] Preferably, sliders are symmetrically arranged on the outer wall of the lifting platform; slide rails are symmetrically arranged on the outside of the cleaning tub, and the sliders are slidably connected to the slide rails. The upper end of the slide rail extends to a position flush with the upper end of the support rod and is fixed to a top plate together. The lower end of the slide rail extends to the ground. A feeding component is installed in the middle of the slide rail. The feeding component is used to put the material to be cleaned into the cleaning tank.

[0014] Preferably, multiple water supply pipes are symmetrically arranged on the lifting platform. A hollow block is fixed to the outlet of the water supply pipe. The lower surface of the hollow block is connected to the lifting platform by a spring. A vertical pipe runs through the hollow block and connects the hollow block to the inside of the vertical pipe. Multiple spray holes are opened on the outer ring of each vertical pipe. The lower end of each vertical pipe is closed. A drain outlet is opened on the outer ring of the lower end of each vertical pipe. Each of the vertical tubes is fitted with an outer tube, the upper end of each outer tube is fixed to the lower surface of the lifting platform, multiple overflow holes are opened on the outer ring of the outer tube, the lower end of each outer tube is closed, and a water outlet is opened on the outer ring of the lower end of each outer tube.

[0015] Preferably, the outlet diameter of each overflow hole is reduced, and the drainage direction of each water outlet is inclined downward.

[0016] Preferably, each of the plugs is made of rubber and is arranged in a frustum shape.

[0017] The advantages of this invention are: 1. In this invention, after the sewage in the cleaning tank is drained, the water supply pipe supplies water again. The water flow washes the cleaned plastic sheet. The supplied water is not only used for the final cleaning of dirt on the surface of the plastic sheet, but also for cleaning the inner wall of the cleaning tank. The outer edge of the lifting plate is close to the inner wall of the cleaning tank. Water flows from the lifting plate to the inner wall of the cleaning tank, which can perform a final cleaning of the residual dirt on the inner surface of the cleaning tank, thus making full use of water. 2. In this invention, the cleaning tank is cleaned, which facilitates the cleaning of subsequent plastic sheets. The lifting plate raises the cleaned plastic sheets to the discharge pipe position, and the water supply pipe continues to supply water to rinse the plastic sheets. The water and plastic sheets are discharged together from the discharge pipe. At this time, the water is only used to propel the flow of the plastic sheets and does not participate in the cleaning of the plastic sheets. It is still clean and this part of the water can be collected. There is no need for dirt filtration. It is only necessary to filter out the plastic sheets and inject them back into the cleaning tank for reuse. This makes full use of water resources and achieves the purpose of water conservation. Furthermore, the cleaning tank contains a fixed amount of plastic sheets. If there are not enough plastic sheets, the machine can be stopped and wait. During the shutdown, there is no waste of water or electricity, which has the effect of energy saving. Attached Figure Description

[0018] Figure 1 This is a perspective view of the plastic waste recycling and reuse device of the present invention; Figure 2 This is a front view of the plastic waste recycling and reuse device of the present invention; Figure 3 This is a perspective view of the lifting component in this invention; Figure 4 This is a perspective view of the interaction between the cleaning tank and the drive assembly in this invention; Figure 5 This is a perspective view of the driving component in this invention; Figure 6 This is a schematic diagram illustrating the cooperation between the lifting platform and the drive assembly in this invention; Figure 7 This is a perspective view of the L-shaped plate in this invention; Figure 8 This is a perspective view of the cleaning tub in this invention; Figure 9 This is a cross-sectional view of the cleaning tub in this invention; Figure 10This is a perspective view of the inner cylinder in this invention; Figure 11 This is a perspective view of the lifting plate in this invention; Figure 12 This is a schematic diagram of the fit between the outer tube and the vertical tube in this invention.

[0019] In the diagram: 1. Cleaning tank; 2. Drain outlet; 3. Discharge pipe; 4. Lifting plate; 5. Paddle plate; 6. Rotating shaft; 7. Support rod; 8. Lead screw; 9. Lifting platform; 10. Water supply pipe; 11. Gear motor; 12. Notch; 13. Strip hole; 14. Inner cylinder; 15. Outer cylinder; 16. End plate; 17. Through hole; 18. Cavity; 19. Anti-backflow nozzle; 20. L-shaped plate; 21. Base plate; 22. Arc plate; 23. Plug; 24. Slider; 25. Slide rail; 26. Top plate; 27. Feeding assembly; 28. Hollow block; 29. ​​Spring; 30. Vertical pipe; 31. Spray hole; 32. Drain outlet; 33. Outer pipe; 34. Overflow hole; 35. Water outlet. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] Reference Figures 1-6 ,as well as Figure 11 A plastic waste recycling and reuse device includes a washing tank 1 erected on the ground, a plurality of sewage outlets 2 provided at the lower end of the washing tank 1, and a plurality of discharge pipes 3 arranged in a circular array around the upper half of the washing tank 1, each discharge pipe 3 being inclined downward. The cleaning tub 1 is equipped with a lifting plate 4. Multiple levers 5 are arranged in a circular array on the upper surface of the lifting plate 4. A rotating shaft 6 is fixed at the center of the upper surface of the lifting plate 4. A driving component is provided at the upper end of the rotating shaft 6 to drive its rotation. The driving component is mounted on the ground through the lifting component. The lifting assembly includes support rods 7 symmetrically arranged outside the cleaning tub 1. Each support rod 7 has a strip hole 13. A lead screw 8 is rotatably connected in each strip hole 13. The upper half of the two lead screws 8 are threadedly connected to a lifting platform 9. A drive assembly is installed on the upper surface of the lifting platform 9. Multiple water supply pipes 10 are also provided on the lifting platform 9. In this embodiment of the invention, the designed drive component includes a geared motor 11, which is controlled by a PLC to achieve forward or reverse rotation. This plastic waste recycling device is a device for cleaning recycled plastics, specifically for cleaning crushed plastic sheets. Its working process is as follows: Step 1: Feeding. In its initial state, the lifting plate 4 is located at the bottom of the cleaning tank 1. The broken pieces are conveyed into the cleaning tank 1 by the feeding auger. During the feeding process, water is injected into the cleaning tank 1 through the water supply pipe 10 to speed up the cleaning process and suppress dust. Step 2: Cleaning. The geared motor 11 drives the lifting plate 4 to rotate through the rotating shaft 6. The lifting plate 4 pushes the water and plastic sheet to rotate. The friction between the plastic sheet and the flushing of the water clean the dirt off the surface of the plastic sheet. Step 3: Unloading. Control the reduction motor 11 to decelerate, and simultaneously open the drain port 2. Sewage flows downwards along the drain port 2. After the sewage is discharged, the water supply pipe 10 supplies water again. The water flow washes away the dirt adhering to the plastic sheet after cleaning. At the same time, it drives the lead screw 8 to rotate. In this embodiment, the support rod 7 is equipped with a motor to drive the lead screw 8 to rotate. The motor is also controlled by a PLC, which can realize the forward or reverse rotation of the motor. The lead screw 8 drives the lifting platform 9 to move upward, and the lifting plate 4 to move upward. The lifting plate 4 lifts the cleaned plastic sheet to the position of the discharge pipe 3. Specifically, the upper edge of the outer ring of the lifting plate 4 is flush with the lower edge of the inlet of the discharge pipe 3. At this time, the water supply pipe 10 continues to supply water. The water supply washes the plastic sheet and pushes the plastic sheet into the discharge pipe 3. The plastic sheet is discharged along the discharge pipe 3, realizing unloading. Step 4: Reset, close drain outlet 2, lower lifting plate 4, and simultaneously feed materials and supply water; The process of steps one, two, three, and four is then repeated. In step three, after the wastewater is drained, water supply pipe 10 supplies water again. The water flow washes over the cleaned plastic sheets. The supplied water not only cleans the surface dirt of the plastic sheets but also cleans the inner wall of the cleaning tank 1. The outer edge of the lifting plate 4 is close to the inner wall of the cleaning tank 1, and water flows from the lifting plate 4 to the inner wall of the cleaning tank 1, providing a final clean of any remaining dirt on the inner surface of the cleaning tank 1. This ensures efficient water utilization. The cleaned cleaning tank 1 facilitates the cleaning of subsequent plastic sheets. Furthermore, the lifting plate 4 cleans the plastic sheets... The plastic sheet is then lifted to the discharge pipe 3, and the water supply pipe 10 continues to supply water to rinse the plastic sheet. The water and plastic sheet are discharged together from the discharge pipe 3. At this time, the water is only used to propel the plastic sheet and does not participate in the cleaning of the plastic sheet. It is still clean and this part of the water can be collected. There is no need for dirt filtration. Just filter out the plastic sheet and inject it back into the cleaning tank 1 for reuse. This makes full use of water resources and achieves the purpose of saving water. Furthermore, the cleaning tank 1 contains a fixed amount of plastic sheet. If there is not enough plastic sheet, the machine can be stopped and wait. During the shutdown, there will be no waste of water or electricity resources, which has the effect of energy saving.

[0022] Reference Figure 11 The lifting plate 4 is shaped like a frustum; each of the lever plates 5 has multiple notches 12. The shape of the lifting plate 4 is as follows Figure 11 As shown, its surface has a certain slope, which can help the flow of plastic sheets, so that the plastic sheets can flow quickly into the discharge pipe 3. In this embodiment, the inlet shape of the discharge pipe 3 can also be flat. The inlets of two adjacent discharge pipes 3 are close to each other, and there is no obstruction to the flow of plastic sheets in the middle, which can further improve the flow and discharge of plastic sheets after cleaning. In this embodiment, a notch 12 is provided on each deflector 5. The notch 12 is used to further disturb the water flow, disrupt the flow direction of the bottom plastic sheet, and increase the possibility of contact between adjacent plastic sheets, thereby improving the cleaning efficiency and effect of the plastic sheet. Furthermore, the rotation of the lever 5 in conjunction with the lifting plate 4 can pull plastic sheets with a density less than water into the water and completely immerse them in it. That is, the vortex formed can spin the plastic sheets floating on the water surface into the water and make full contact with the water. Compared with the existing assembly line cleaning method, the cleaning effect of plastic sheets in this embodiment is better.

[0023] Reference Figures 8-10 The cleaning tub 1 includes an inner cylinder 14 and an outer cylinder 15. The upper and lower ends of the inner cylinder 14 and the outer cylinder 15 are sealed and fixed by annular end plates 16, and the lower end plate 16 is provided with multiple drain ports 2. Each of the discharge pipes 3 extends obliquely downward along the inner wall of the inner cylinder 14 to the outer cylinder 15, and the bottom plate 21 of each discharge pipe 3 is hollowed out at the part between the inner cylinder 14 and the outer cylinder 15; multiple through holes 17 are opened in the lower half of the outer ring of the inner cylinder 14, and each through hole 17 is connected to the cavity 18 between the inner cylinder 14 and the outer cylinder 15; in this embodiment, the diameter of the through hole 17 is smaller than the minimum projected outer contour size of the plastic sheet in this direction, so the plastic sheet cannot flow into the cavity 18 through the through hole 17; Plastic sheets are inserted into the inner cylinder 14, and water is injected into the inner cylinder 14. Then, water flows into the cavity 18 through multiple through holes 17. During the rotation of the lifting plate 4 and the toggle plate 5, dirt falls off the plastic sheets. Some of the dirt flows into the cavity 18 through the through holes 17. The volume of the cavity 18 can be controlled by adjusting the diameter of the inner cylinder 14 or the outer cylinder 15. In this embodiment, the volume of the cavity 18 is not necessarily better the larger it is. The larger the volume of the cavity 18, the more water it can hold. However, the water in the cavity 18 has a lower efficiency in cleaning the plastic sheets. Therefore, the volume of the cavity 18 can be designed to be smaller. However, it is still necessary to ensure the smooth flow of dirt absorbed in the cavity 18. That is, the dirt in the cavity 18 can be smoothly discharged during subsequent sewage discharge. During subsequent material feeding, the drain port 2 is opened. First, the stains and sewage absorbed in the cavity 18 are quickly discharged. Then, the sewage and stains in the inner cylinder 14 flow into the cavity 18 through the through hole 17 and are discharged from the drain port 2. The design of the inner cylinder 14 and the outer cylinder 15 is to form the cavity 18 to absorb stains. The water flow in the cavity 18 is poor, so the stains that enter the cavity 18 through the through hole 17 are difficult to flow back into the inner cylinder 14. That is, the cavity 18 collects stains, which facilitates the full and rapid discharge of stains and reduces the amount of water required for the final rinsing of the plastic sheet. Meanwhile, the bottom plate 21 of the discharge pipe 3 is hollowed out. When the plastic sheet is discharged from the discharge pipe 3, some water flows down through the bottom plate 21 of the discharge pipe 3 into the cavity 18, which washes away the stains on the inner surface of the cavity 18 and fully washes away the stains from the cleaning tank 1.

[0024] Reference Figures 8-10 Each of the through holes 17 is provided with an anti-backflow nozzle 19 at the outer edge of the hole. Each anti-backflow nozzle 19 is flared towards the inlet of the inner cylinder 14 and narrowed towards the outlet of the cavity 18. The anti-backflow nozzles 19 are designed to restrict the flow direction of stains. Each anti-backflow nozzle 19 is flared at the inlet of the inner cylinder 14, allowing stains to flow relatively smoothly from the inner cylinder 14 into the cavity 18. However, the outlet of each anti-backflow nozzle 19 towards the cavity 18 is narrowed, restricting the smooth flow of stains from the cavity 18 into the inner cylinder 14. In other words, it is more difficult for stains to return from the cavity 18 to the inner cylinder 14.

[0025] Reference Figures 8-10 Each of the anti-backflow nozzles 19 is inclined downwards; Each anti-backflow nozzle 19 is tilted downwards towards the outlet of the cavity 18, which can further reduce the possibility of stains returning to the inner cylinder 14, so that more stains remain in the cavity 18. When feeding, the final rinsing of the cleaned plastic sheet can reduce the rinsing pressure. That is, less stains adhere to the cleaned plastic sheet at this time, and more stains remain in the cavity 18, which facilitates the cleaning of stains in the cleaning tank 1.

[0026] Reference Figures 1-9 An L-shaped plate 20 is provided on the inner side of each support rod 7. The horizontal end of each L-shaped plate 20 is threaded to the lower half of the lead rod 8 that is close to it. The vertical end of each L-shaped plate 20 extends to the bottom of the cleaning tank 1. The vertical ends of the two L-shaped plates 20 are fixed to a base plate 21. Two arc-shaped plates 22 are symmetrically arranged on the base plate 21. Multiple plugs 23 are provided on each arc-shaped plate 22. The plugs 23 are used to seal the drain outlet 2. The L-shaped plate 20, in conjunction with the lead screw 8, automatically discharges wastewater during material feeding. Specifically, when the lead screw 8 rotates and drives the lifting platform 9 to move upward, it also drives the L-shaped plate 20 to move downward. Simultaneously, the L-shaped plate 20 drives the base plate 21 to move downward, and the base plate 21 drives the arc-shaped plate 22 and the plug 23 on it to move downward. The plug 23 no longer blocks the drain outlet 2, and the wastewater is discharged from the drain outlet 2. The lead screw 8 continues to rotate, and the lifting platform 9 moves to the position of the discharge pipe 3. After that, the cleaned plastic sheet is discharged, achieving the purpose of automatically opening the drain outlet 2. During reset, the lead screw 8 reverses, the lifting plate 4 moves downward to reset, and the plug 23 moves upward to reset and re-block the drain outlet 2.

[0027] Reference Figures 1-6 The lifting platform 9 has symmetrically arranged sliders 24 on its outer side wall; the washing tub 1 has symmetrically arranged slide rails 25 on its outer side, and the sliders 24 are slidably connected to the slide rails 25. The upper end of the slide rail 25 extends to a position flush with the upper end of the support rod 7 and is fixed together with the top plate 26. The lower end of the slide rail 25 extends to the ground. The feeding component 27 is installed in the middle of the slide rail 25. The feeding component 27 is used to put the material to be cleaned into the cleaning tank 1. The slide rail 25 is used to constrain the lifting platform 9. Since the drive component is installed on it, its stability needs to be enhanced. Therefore, the slide rail 25 is set up. The lifting platform 9 can move upward along the slide rail 25 to improve the upward stability of the lifting plate 4. At the same time, when the drive component is executed on the lifting platform 9, the slider 24 is limited within the slide rail 25. The slide rail 25 stabilizes the lifting platform 9 and the drive component. Furthermore, a feeding component 27 is set between two adjacent slide rails 25. The feeding component 27 can be a feeding auger or a conveyor belt. The feeding component 27 is set up to stabilize the feeding component 27.

[0028] Reference Figures 1-6 ,as well as Figure 12 Multiple water supply pipes 10 are symmetrically arranged on the lifting platform 9. A hollow block 28 is fixed to the outlet port of the water supply pipe 10. The lower surface of the hollow block 28 is connected to the lifting platform 9 by a spring 29. A vertical pipe 30 passes through the hollow block 28 and is connected to the interior of the vertical pipe 30. Multiple spray holes 31 are opened on the outer ring of each vertical pipe 30. The lower end of each vertical pipe 30 is closed. A drain outlet 32 ​​is opened on the outer ring of the lower end of each vertical pipe 30. Each of the vertical tubes 30 is fitted with an outer tube 33. The upper end of each outer tube 33 is fixed to the lower surface of the lifting platform 9. Multiple overflow holes 34 are opened on the outer ring of the outer tube 33. The lower end of each outer tube 33 is closed. A water outlet 35 is opened on the outer ring of the lower end of each outer tube 33. In the feeding step, the spray hole 31 on the vertical pipe 30 is connected to the overflow hole 34 on the outer pipe 33. At this time, water flows from the water supply pipe 10 into the hollow block 28, then into the vertical pipe 30, and finally sprays out from the overflow hole 34. The water is sprayed into the inner cylinder 14 in an atomized state to suppress the dust generated during the feeding process of the plastic sheet, and has a higher suppression effect. During the feeding process, the lifting platform 9 moves upward, and the upper end of the vertical pipe 30 is pressed against the top plate 26. The vertical pipe 30 moves downward. At this time, the spray hole 31 and the overflow hole 34 are misaligned and no longer connected, while the drain outlet 32 ​​and the water outlet 35 are opposite and connected. Water is discharged along the water outlet 35, and the water washes and pushes the plastic sheet into the discharge pipe 3.

[0029] Reference Figure 12 Each overflow hole 34 has a narrowed outlet diameter, and each water outlet 35 has its drainage direction tilted downwards. The overflow hole 34 has a narrowed outlet diameter. When water is discharged from the overflow hole 34, the water can be sprayed onto the inner cylinder 14 and the plastic sheet in an impact manner. When sprayed onto the inner cylinder 14, the water can impact the through hole 17 and push the dirt blocking the through hole 17 into the cavity 18. When sprayed onto the plastic sheet, the water can pre-wash away some of the dirt on the surface of the plastic sheet and reduce the pressure of subsequent plastic sheet rinsing.

[0030] Reference Figure 7 Each of the plugs 23 is made of rubber and is arranged in a frustum shape; The truncated cone-shaped plug 23, made of rubber, can stably seal the drain outlet 2 when it is blocked, reducing the possibility of sewage leakage.

[0031] Working principle: Step 1: Feeding. In the initial state, the lifting plate 4 is located at the bottom of the cleaning tank 1. The broken pieces are conveyed into the cleaning tank 1 by the feeding auger. During the feeding process, water is injected into the cleaning tank 1 through the water supply pipe 10. This speeds up the cleaning process and inhibits dust. Step 2: Cleaning. The geared motor 11 drives the lifting plate 4 to rotate through the rotating shaft 6. The lifting plate 4 pushes the water and plastic sheet to rotate. The friction between the plastic sheet and the flushing of the water clean the dirt off the surface of the plastic sheet. Step 3: Unloading. Control the reduction motor 11 to decelerate, and simultaneously open the drain port 2. Sewage flows downwards along the drain port 2. After the sewage is discharged, the water supply pipe 10 supplies water again. The water flow washes away the dirt adhering to the plastic sheet after cleaning. At the same time, it drives the lead screw 8 to rotate. In this embodiment, the support rod 7 is equipped with a motor to drive the lead screw 8 to rotate. The motor is also controlled by a PLC, which can realize the forward or reverse rotation of the motor. The lead screw 8 drives the lifting platform 9 to move upward, and the lifting plate 4 to move upward. The lifting plate 4 lifts the cleaned plastic sheet to the position of the discharge pipe 3. Specifically, the upper edge of the outer ring of the lifting plate 4 is flush with the lower edge of the inlet of the discharge pipe 3. At this time, the water supply pipe 10 continues to supply water. The water supply washes the plastic sheet and pushes the plastic sheet into the discharge pipe 3. The plastic sheet is discharged along the discharge pipe 3, realizing unloading. Step 4: Reset, close drain outlet 2, lower lifting plate 4, and simultaneously feed materials and supply water.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic waste recycling and reuse device, characterized in that: It includes a cleaning bucket erected on the ground, with multiple drain outlets at the bottom of the cleaning bucket and multiple discharge pipes arranged in a circular array around the outer half of the upper part of the cleaning bucket, with each discharge pipe inclined downwards. The cleaning tank is equipped with a lifting plate. Multiple levers are arranged in a circular array on the upper surface of the lifting plate. A rotating shaft is fixed to the center of the upper surface of the lifting plate. A drive assembly is provided at the upper end of the rotating shaft to drive its rotation. The drive assembly is mounted on the ground through the lifting assembly. The lifting assembly includes symmetrically arranged support rods outside the cleaning tub. Each support rod has a slotted hole, and a lead screw is rotatably connected to each slotted hole. The upper half of the two lead screws are threadedly connected to a lifting platform. A drive assembly is installed on the upper surface of the lifting platform, and multiple water supply pipes are also provided on the lifting platform.

2. The plastic waste recycling device according to claim 1, characterized in that: The lifting plate is shaped like a frustum; each of the lifting plates has multiple notches.

3. The plastic waste recycling device according to claim 1, characterized in that: The cleaning tank includes an inner cylinder and an outer cylinder. The upper and lower ends of the inner cylinder and the outer cylinder are sealed and fixed by annular end plates, and the lower end plate is provided with multiple drain ports. Each of the discharge pipes extends downwards along the inner wall of the inner cylinder to the outside of the outer cylinder, and the bottom plate of each discharge pipe is hollowed out at the part between the inner and outer cylinders; multiple through holes are opened in the lower half of the outer ring of the inner cylinder, and each through hole communicates with the cavity between the inner and outer cylinders.

4. The plastic waste recycling device according to claim 3, characterized in that: Each of the through holes is provided with an anti-backflow nozzle at the outer edge of the hole. Each anti-backflow nozzle is flared towards the inlet of the inner cylinder and narrowed towards the outlet of the cavity.

5. A plastic waste recycling and reuse device according to claim 4, characterized in that: Each of the aforementioned anti-backflow nozzles is installed with its tip tilted downwards.

6. The plastic waste recycling device according to claim 1, characterized in that: An L-shaped plate is provided on the inner side of each support rod. The horizontal end of each L-shaped plate is threaded to the lower half of the lead rod adjacent to it. The vertical end of each L-shaped plate extends to the bottom of the cleaning tank. The vertical ends of the two L-shaped plates are fixed to a base plate. Two arc-shaped plates are symmetrically arranged on the base plate. Multiple plugs are provided on each arc-shaped plate. The plugs are used to seal the drain outlet.

7. The plastic waste recycling device according to claim 1, characterized in that: Slider blocks are symmetrically arranged on the outer wall of the lifting platform; slide rails are symmetrically arranged on the outside of the cleaning tub, and the sliders are slidably connected inside the slide rails; The upper end of the slide rail extends to a position flush with the upper end of the support rod and is fixed to a top plate together. The lower end of the slide rail extends to the ground. A feeding component is installed in the middle of the slide rail. The feeding component is used to put the material to be cleaned into the cleaning tank.

8. A plastic waste recycling and reuse device according to claim 7, characterized in that: Multiple water supply pipes are symmetrically arranged on the lifting platform. A hollow block is fixed to the outlet of the water supply pipe. The lower surface of the hollow block is connected to the lifting platform by a spring. A vertical pipe runs through the hollow block and connects the hollow block to the inside of the vertical pipe. Multiple spray holes are opened on the outer ring of each vertical pipe. The lower end of each vertical pipe is closed. A drain outlet is opened on the outer ring of the lower end of each vertical pipe. Each of the vertical tubes is fitted with an outer tube, the upper end of each outer tube is fixed to the lower surface of the lifting platform, multiple overflow holes are opened on the outer ring of the outer tube, the lower end of each outer tube is closed, and a water outlet is opened on the outer ring of the lower end of each outer tube.

9. A plastic waste recycling and reuse device according to claim 8, characterized in that: The outlet diameter of each overflow hole is reduced, and the drainage direction of each water outlet is inclined downwards.

10. A plastic waste recycling and reuse device according to claim 6, characterized in that: Each of the plugs is made of rubber and is arranged in a frustum shape.

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