A cleaning device for easy low-temperature drying of plastic bottle flakes

Abstract

This invention discloses a cleaning device for easy low-temperature drying of plastic bottle flakes, relating to the field of plastic bottle flake technology. To address the problem of excessive moisture trapped in the washed bottle flakes, leading to prolonged low-temperature drying times, this device specifically includes a cleaning tank and a conveyor plate. A connecting plate is fixed to the bottom outer wall of the cleaning tank, a support frame is fixed to the outer wall of the connecting plate, a discharge port and a water supply pipe are fixed to the top outer wall of the support frame, a rotating shaft is inserted into the top outer wall of the connecting plate, and a rotating column is fixed to the top outer wall of the rotating shaft. A stirring and cleaning mechanism is provided on the inner wall of the cleaning tank and the outer wall of the rotating column. A material collection groove is formed on the top outer wall of the connecting plate, a dehydration tank is fixed to the bottom outer wall of the connecting plate, and an annular guide groove is formed on the bottom outer wall of the connecting plate. A cylindrical filter screen is slidably connected to the inner wall of the annular guide groove. This invention can quickly remove water trapped in the washed bottle flakes, reducing the internal moisture content and improving the efficiency of subsequent low-temperature drying.

Description

Technical Field

[0001] This invention relates to the field of plastic bottle flake technology, and in particular to a cleaning device that facilitates low-temperature drying of plastic bottle flakes. Background Technology

[0002] With the development of human society, PET bottles, namely various plastic bottles, are mostly used to hold beverages and other liquids. For environmental protection, PET bottles are now generally recycled and reused. In the process of recycling and reproducing waste PET bottles, the PET bottles need to be crushed into bottle flakes of a certain size. After multiple cleanings, the oil and glue on the surface of the bottle flakes are removed. The cleaning process of PET bottle flakes is usually carried out in a PET bottle flake cleaning device. After cleaning, the plastic bottle flakes need to be dried. In order to avoid deformation or melting of the plastic bottle flakes when dried at high temperature, low temperature drying equipment is usually used to dry the bottle flakes. However, low temperature drying often cannot quickly evaporate the water remaining on the surface of the bottle flakes, resulting in low drying efficiency.

[0003] To address the aforementioned issues, a search revealed Chinese patent application number CN202121909970.5, which discloses a novel PET flake cleaning device. This device includes a cleaning cylinder, a stirring mechanism, a rotary motor, a spiral conveying mechanism, a baffle, a first friction pusher plate, and a second friction pusher plate. The stirring mechanism is located within the cleaning cylinder, with its stirring blades positioned in the lower part of the cylinder. However, this technical solution lacks a mechanism for rapid dehydration of the cleaned flakes, resulting in a large amount of moisture remaining in the cleaned flakes, leading to a prolonged low-temperature drying time. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cleaning device that facilitates low-temperature drying of plastic bottle flakes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cleaning device for facilitating low-temperature drying of plastic bottle flakes includes a washing tank and a conveyor plate. A connecting plate is fixed to the bottom outer wall of the washing tank, a support frame is fixed to the outer wall of the connecting plate, a discharge port and a water supply pipe are fixed to the top outer wall of the support frame, a rotating shaft is inserted into the top outer wall of the connecting plate, a rotating column is fixed to the top outer wall of the rotating shaft, a stirring and washing mechanism is provided on the inner wall of the washing tank and the outer wall of the rotating column, a material collection channel is opened on the top outer wall of the connecting plate, a dewatering tank is fixed to the bottom outer wall of the connecting plate, an annular guide groove is opened on the bottom outer wall of the connecting plate, a cylindrical filter screen is slidably connected to the inner wall of the annular guide groove, a conical discharge pipe is fixed to the bottom outer wall of the cylindrical filter screen, a fixing plate is fixed to the inner wall of the conical discharge pipe, and one side of the outer wall of the fixing plate is fixed to the outer wall of the rotating shaft.

[0007] Preferably, the bottom outer wall of the rotating shaft is connected to an output shaft via a coupling, a motor is installed on the bottom outer wall of the output shaft, the motor is fixed to the inner wall of the support frame, a control panel is fixed to one side outer wall of the support frame, and the motor and the transmission plate are electrically connected to the control panel respectively.

[0008] Furthermore: a guide plate is fixed to the inner wall of the material collection channel, and an inclined guide pipe is inserted into the inner wall of the material collection channel.

[0009] A further preferred embodiment: the stirring and cleaning mechanism includes an elastic protrusion and a stirring and cleaning plate, the elastic protrusion being fixed to the inner wall of the cleaning tank, and the stirring and cleaning plate being fixed to the outer wall of the rotating column.

[0010] As a preferred embodiment of the present invention: the inner wall of the cleaning tub has a first arc-shaped surface, the outer wall of the rotating column has a second arc-shaped surface, and a cleaning brush is fixed to the bottom outer wall of the second arc-shaped surface.

[0011] As a further preferred embodiment of the present invention: the outer wall of the rotating shaft is fitted with auger blades, and the top outer wall of the cleaning tank is fixed with a baffle cover.

[0012] As a further embodiment of the present invention: a second sealing ring is fixed to the outer wall of the conical feeding pipe, the second sealing ring is rotatably connected to the bottom inner wall of the dehydration barrel, a first sealing ring is fixed to the outer wall of the rotating shaft, and the first sealing ring is rotatably connected to the inner wall of the connecting plate.

[0013] Based on the aforementioned scheme: an umbrella-shaped material shield is fixed to the outer wall of the bottom of the conical feeding pipe, a conical baffle is fixed to the outer wall of the output shaft, a conical mounting rod is fixed to the outer wall of the motor, and one side of the outer wall of the conical mounting rod is fixed to the inner wall of the support frame.

[0014] A preferred embodiment based on the aforementioned scheme is as follows: a conical block is fixed to the outer wall of the top of the rotating column, and a material distribution plate is fixed to the outer wall of the conical block.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. The operator controls the motor via the control panel. The motor drives the rotating shaft, which in turn drives the agitation and cleaning mechanism inside the cleaning tank to agitate and clean the bottle flakes mixed in with the water. Under the combined action of the agitation and cleaning mechanism and the water flow, the bottle flakes slowly move downwards inside the cleaning tank and eventually enter the cylindrical filter screen along with the water flow through the collection channel. At this time, the cylindrical filter screen rotates rapidly with the rotating shaft, thereby throwing out the water flowing into the bottle flakes, thus reducing the moisture content inside the bottle flakes after cleaning and improving the efficiency of subsequent low-temperature drying.

[0017] 2. The worker pours the crushed bottle flakes into the feeding port and simultaneously connects the water supply pipe to an external water pump. The external water pump injects cleaning water into the cleaning tank through the water supply pipe. Before filling the tank, the worker first closes the drain pipe. Once the water level in the cleaning tank reaches the designated height, the drain pipe is then opened. The water flow rate in the supply pipe should be close to the water flow rate in the drain pipe to maintain a stable water level in the cleaning tank.

[0018] 3. The guide plate can separate and guide the bottle flakes entering the collection channel, preventing them from piling up and falling directly into the cylindrical filter screen. At the same time, the inclined guide pipe can guide the bottle flakes and water flow into the collection channel, allowing the bottle flakes mixed with water to impact the inner wall of the cylindrical filter screen. In conjunction with the rotating cylindrical filter screen, the water mixed in the bottle flakes can be quickly thrown out, while the water flow entering the cylindrical filter screen is guided to prevent some water from directly entering the conical discharge pipe and affecting the bottle flake drying effect.

[0019] 4. The auger blades can rotate with the rotating shaft, thereby conveying the spun-dry bottle flakes accumulated inside the cylindrical filter screen, allowing the bottle flakes to smoothly enter the conical discharge pipe and be discharged from the device through the conical discharge pipe; the first arc surface and the second arc surface can guide the water flow and bottle flakes that move to the bottom of the washing tank by their own gravity, so that the water flow carries the bottle flakes smoothly into the collection channel. At the same time, the cleaning brush will also rotate with the rotating column, thereby cleaning the area around the collection channel.

[0020] 5. After being dewatered, the bottle flakes fall through the conical feeding pipe to the top of the conical baffle. At this time, the umbrella-shaped shield at the bottom of the conical feeding pipe works with the conical baffle to limit and guide the flat flakes. Meanwhile, the conical baffle rotates with the output shaft, allowing the bottle flakes that fall to the top of the conical baffle to be evenly sprinkled onto the conveyor plate by their own gravity and the rotation of the conical baffle, thereby improving the drying efficiency of the subsequent low-temperature drying. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of a cleaning device for facilitating low-temperature drying of plastic bottle flakes proposed in this invention;

[0022] Figure 2 This is a schematic diagram of the top structure of the cleaning tank of a cleaning device for facilitating low-temperature drying of plastic bottle flakes, as proposed in this invention.

[0023] Figure 3 This is a schematic diagram of the internal structure of the cleaning tank of a cleaning device for facilitating low-temperature drying of plastic bottle flakes, as proposed in this invention.

[0024] Figure 4 This is a schematic diagram of the top structure of the connecting plate of a cleaning device for facilitating low-temperature drying of plastic bottle flakes, as proposed in this invention.

[0025] Figure 5 This is a schematic diagram of the internal structure of the dehydration tank of a cleaning device for facilitating low-temperature drying of plastic bottle flakes, as proposed in this invention.

[0026] Figure 6 This is a schematic diagram of the internal structure of the cylindrical filter screen of a cleaning device for facilitating low-temperature drying of plastic bottle flakes, as proposed in this invention.

[0027] Figure 7 This is an exploded view of the conical baffle and umbrella-shaped shielding structure of a cleaning device for facilitating low-temperature drying of plastic bottle flakes, as proposed in this invention.

[0028] Figure 8 This is a circuit diagram of a cleaning device for low-temperature drying of plastic bottle flakes proposed in this invention.

[0029] In the diagram: 1. Cleaning tank; 2. Control panel; 3. Dehydration tank; 4. Conical discharge pipe; 5. Conical mounting rod; 6. Conveyor plate; 7. Umbrella-shaped material shield; 8. Drain pipe; 9. Connecting plate; 10. Water supply pipe; 11. Discharge port; 12. Material baffle; 13. Support frame; 14. Elastic protrusion; 15. Mixing and cleaning plate; 16. Material distribution plate; 17. Conical block; 18. Rotating column; 19. First arc-shaped surface; 20. Rotating shaft; 21. Material collection channel; 22. First sealing ring; 23. Cleaning brush; 24. Second arc-shaped surface; 25. Guide plate; 26. Conical baffle; 27. Output shaft; 28. Motor; 29. ​​Cylindrical filter screen; 30. Annular guide groove; 31. Inclined guide pipe; 32. Screwdriver blade; 33. Fixing plate; 34. Second sealing ring. Detailed Implementation

[0030] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0031] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0032] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0033] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0034] Example 1:

[0035] A cleaning device that facilitates low-temperature drying of plastic bottle flakes, such as... Figure 1-8 As shown, the system includes a washing tank 1 and a conveyor plate 6. A connecting plate 9 is fixed to the bottom outer wall of the washing tank 1. A support frame 13 is fixed to the outer wall of the connecting plate 9 by screws. A discharge port 11 and a water supply pipe 10 are fixed to the top outer wall of the support frame 13. A rotating shaft 20 is inserted into the top outer wall of the connecting plate 9. A rotating column 18 is fixed to the top outer wall of the rotating shaft 20. A stirring and washing mechanism is provided on the inner wall of the washing tank 1 and the outer wall of the rotating column 18. A material collection channel 21 is opened on the top outer wall of the connecting plate 9. A dewatering tank 3 is fixed to the bottom outer wall of the connecting plate 9. An annular guide groove 30 is opened on the bottom outer wall of the connecting plate 9. A cylindrical filter screen 29 is slidably connected to the inner wall of the annular guide groove 30. A conical discharge pipe 4 is fixed to the bottom outer wall of the cylindrical filter screen 29. A fixing plate 33 is fixed to the inner wall of the conical discharge pipe 4. One side of the outer wall of the fixing plate 33 is fixed to the outer wall of the rotating shaft 20.

[0036] The bottom outer wall of the rotating shaft 20 is connected to the output shaft 27 via a coupling. The bottom outer wall of the output shaft 27 is equipped with a motor 28, which is fixed to the inner wall of the support frame 13. The outer wall of one side of the support frame 13 is fixed with a control panel 2 via screws. The motor 28 and the transmission plate 6 are electrically connected to the control panel 2 respectively.

[0037] The staff pours the crushed bottle flakes into the feed inlet 11 and connects the water supply pipe 10 to the external water pumping device. The external water pumping device injects cleaning water into the cleaning tank 1 through the water supply pipe 10. Before injecting water, the staff first closes the drain pipe 8. When the water level in the cleaning tank 1 reaches the specified height, the drain pipe 8 is opened. At the same time, the flow rate of the water in the water supply pipe 10 should be close to the flow rate of the water in the drain pipe 8, so as to maintain a stable water level in the cleaning tank 1.

[0038] The operator controls the motor 28 via the control panel 2. The motor 28 drives the rotating shaft 20 to rotate, which in turn drives the stirring and cleaning mechanism inside the cleaning tank 1 to stir and clean the bottle flakes mixed in with the water. Under the combined action of the stirring and cleaning mechanism and the water flow, the bottle flakes inside the cleaning tank 1 slowly move downwards and finally enter the cylindrical filter screen 29 along with the water flow through the collection channel 21. At this time, the cylindrical filter screen 29 rotates rapidly with the rotating shaft 20, thereby throwing out the water flow from the bottle flakes inside, which greatly reduces the water content inside the bottle flakes after cleaning and improves the efficiency of subsequent low-temperature drying. The water flow thrown out by the cylindrical filter screen 29 is caught by the dehydration tank 3 and then flows out of the device through the drain pipe 8 for collection by the operator. The bottle flakes that have been thrown out by the cylindrical filter screen 29 enter the conical discharge pipe 4 and are then sprinkled onto the conveyor plate 6 at the bottom and conveyed into the subsequent low-temperature drying equipment for drying.

[0039] like Figure 3 , Figure 4 , Figure 6 As shown, a guide plate 25 is fixed to the inner wall of the collecting channel 21, and an inclined guide pipe 31 is inserted into the inner wall of the collecting channel 21. The guide plate 25 can separate and guide the bottle flakes entering the collecting channel 21, preventing the bottle flakes that are piled up together from falling directly into the cylindrical filter screen 29 through the collecting channel 21, which would affect the drying efficiency of the cylindrical filter screen 29. At the same time, the inclined guide pipe 31 can guide the bottle flakes and water flow that fall into the collecting channel 21, so that the bottle flakes mixed with water flow can directly impact the inner wall of the cylindrical filter screen 29. With the help of the rotating cylindrical filter screen 29, the water mixed in the bottle flakes can be quickly thrown out. At the same time, the water flow entering the cylindrical filter screen 29 is guided to prevent some water flow from directly entering the conical discharge pipe 4 and affecting the drying effect of the bottle flakes.

[0040] like Figure 3 As shown, the stirring and cleaning mechanism includes an elastic protrusion 14 and a stirring and cleaning plate 15. The elastic protrusion 14 is fixed on the inner wall of the cleaning tank 1, and the stirring and cleaning plate 15 is fixed on the outer wall of the rotating column 18. When the rotating column 18 rotates, the stirring and cleaning plate 15 on the outer wall cooperates with the elastic protrusion 14 on the inner wall of the cleaning tank 1 to stir and clean the bottle flakes between the cleaning tank 1 and the rotating column 18.

[0041] like Figure 3 , Figure 4As shown, the inner wall of the cleaning tank 1 has a first arc-shaped surface 19, and the outer wall of the rotating column 18 has a second arc-shaped surface 24. A cleaning brush 23 is fixed to the bottom outer wall of the second arc-shaped surface 24. The first arc-shaped surface 19 and the second arc-shaped surface 24 can guide the water flow and bottle fragments that move to the bottom of the cleaning tank 1 by their own gravity, so that the water flow carries the bottle fragments smoothly into the collection channel 21. At the same time, the cleaning brush 23 will also rotate with the rotating column 18 to clean the area around the collection channel 21 and prevent the bottle fragments from getting stuck between the guide plates 25 and causing blockage.

[0042] like Figure 6 As shown, the outer wall of the rotating shaft 20 is fitted with an auger blade 32, and the top outer wall of the washing tank 1 is fixed with a baffle 12; the auger blade 32 can rotate with the rotating shaft 20, thereby conveying the spun-dry bottle flakes accumulated inside the cylindrical filter screen 29, so that the bottle flakes can smoothly enter the conical discharge pipe 4 and be discharged out of the device through the conical discharge pipe 4.

[0043] like Figure 3 , Figure 4 , Figure 7 As shown, a second sealing ring 34 is fixed to the outer wall of the conical feeding pipe 4. The second sealing ring 34 is rotatably connected to the bottom inner wall of the dewatering barrel 3. A first sealing ring 22 is fixed to the outer wall of the rotating shaft 20. The first sealing ring 22 is rotatably connected to the inner wall of the connecting plate 9. The first sealing ring 22 can improve the sealing performance of the connection between the rotating shaft 20 and the connecting plate 9. At the same time, the second sealing ring 34 can improve the sealing performance of the connection between the conical feeding pipe 4 and the dewatering barrel 3.

[0044] like Figure 1 , Figure 5 , Figure 6 , Figure 7 As shown, an umbrella-shaped shield 7 is fixed to the outer wall of the bottom of the conical feeding pipe 4, a conical baffle 26 is fixed to the outer wall of the output shaft 27, and a conical mounting rod 5 is fixed to the outer wall of the motor 28. One side of the outer wall of the conical mounting rod 5 is fixed to the inner wall of the support frame 13 by screws. After being dewatered, the bottle flakes will fall onto the top of the conical baffle 26 through the conical feeding pipe 4. At this time, the umbrella-shaped shield 7 at the bottom of the conical feeding pipe 4 will cooperate with the conical baffle 26 to limit and guide the flat pieces. At the same time, the conical baffle 26 will rotate with the output shaft 27, so that the bottle flakes falling onto the top of the conical baffle 26 will be evenly sprinkled on the conveyor plate 6 by their own weight and the rotation of the conical baffle 26, thereby improving the drying efficiency of the subsequent low-temperature drying.

[0045] In this embodiment, the operator pours the crushed bottle flakes into the feed inlet 11 and connects the water supply pipe 10 to an external water pump. The external water pump injects cleaning water into the cleaning tank 1 through the water supply pipe 10. Before injecting water, the operator first closes the drain pipe 8. When the water level inside the cleaning tank 1 reaches the specified height, the drain pipe 8 is opened. The operator controls the motor 28 through the control panel 2. The motor 28 drives the rotating shaft 20 to rotate, thereby driving the stirring and cleaning mechanism inside the cleaning tank 1 to stir and clean the bottle flakes mixed in the water. The cylindrical filter screen 29 rotates along with the shaft. The rotating shaft 20 rotates rapidly, thereby throwing out the water flowing into the bottle flakes. The water thrown out by the cylindrical filter screen 29 is caught by the dehydration tank 3 and then flows out of the device through the drain pipe 8 for collection by the staff. The bottle flakes after being thrown out by the cylindrical filter screen 29 will enter the conical feeding pipe 4. At this time, the umbrella-shaped shield 7 at the bottom of the conical feeding pipe 4 will work with the conical baffle 26 to limit and guide the flat pieces. At the same time, the conical baffle 26 will rotate with the output shaft 27, so that the bottle flakes falling to the top of the conical baffle 26 will be evenly sprinkled on the conveyor plate 6 by their own gravity and the rotation of the conical baffle 26.

[0046] The guide plate 25 can separate and guide the bottle flakes entering the collection channel 21. The inclined guide pipe 31 can guide the bottle flakes and water flow that fall into the collection channel 21, so that the bottle flakes mixed with water flow can directly impact the inner wall of the cylindrical filter screen 29. When the rotating column 18 rotates, it will stir and clean the bottle flakes between the cleaning tank 1 and the rotating column 18 through the stirring and cleaning plate 15 on the outer wall and the elastic protrusion 14 on the inner wall of the cleaning tank 1.

[0047] The auger blades 32 can rotate with the rotating shaft 20, thereby conveying the spun-dry bottle flakes accumulated inside the cylindrical filter screen 29.

[0048] Example 2:

[0049] A cleaning device that facilitates low-temperature drying of plastic bottle flakes, such as... Figure 2 As shown, this embodiment makes the following improvements based on embodiment 1: a conical block 17 is fixed to the outer wall of the top of the rotating column 18, and a material distribution plate 16 is fixed to the outer wall of the conical block 17; the conical block 17 rotates together with the rotating column 18, and evenly disperses the bottle flakes that fall to the top through the discharge port 11 between the cleaning tank 1 and the rotating column 18, so that the cleaning mechanism can more evenly stir and clean the bottle flakes, thereby improving the cleaning effect of the cleaning mechanism.

[0050] In this embodiment, the conical block 17 rotates together with the rotating column 18, evenly dispersing the bottle flakes that fall to the top through the discharge port 11 between the washing tank 1 and the rotating column 18.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cleaning device for facilitating low-temperature drying of plastic bottle flakes, comprising a washing tank (1) and a conveyor plate (6), characterized in that, A connecting plate (9) is fixed to the bottom outer wall of the cleaning tank (1). A support frame (13) is fixed to the outer wall of the connecting plate (9). A discharge port (11) and a water supply pipe (10) are fixed to the top outer wall of the support frame (13). A rotating shaft (20) is inserted into the top outer wall of the connecting plate (9). A rotating column (18) is fixed to the top outer wall of the rotating shaft (20). A stirring and cleaning mechanism is provided on the inner wall of the cleaning tank (1) and the outer wall of the rotating column (18). A material collection channel (21) is provided. A dewatering bucket (3) is fixed to the bottom outer wall of the connecting plate (9). An annular guide groove (30) is provided to the bottom outer wall of the connecting plate (9). A cylindrical filter screen (29) is slidably connected to the inner wall of the annular guide groove (30). A conical feed pipe (4) is fixed to the bottom outer wall of the cylindrical filter screen (29). A fixing plate (33) is fixed to the inner wall of the conical feed pipe (4). One side of the outer wall of the fixing plate (33) is fixed to the outer wall of the rotating shaft (20). The bottom outer wall of the rotating shaft (20) is connected to an output shaft (27) via a coupling. A motor (28) is installed on the bottom outer wall of the output shaft (27). The motor (28) is fixed on the inner wall of the support frame (13). A control panel (2) is fixed on one side of the outer wall of the support frame (13). The motor (28) and the transmission plate (6) are electrically connected to the control panel (2). The inner wall of the material collection channel (21) is fixed with a guide plate (25), and an inclined guide pipe (31) is inserted into the inner wall of the material collection channel (21); The stirring and cleaning mechanism includes an elastic protrusion (14) and a stirring and cleaning plate (15). The elastic protrusion (14) is fixed on the inner wall of the cleaning tank (1), and the stirring and cleaning plate (15) is fixed on the outer wall of the rotating column (18).

2. The cleaning equipment for facilitating low-temperature drying of plastic bottle flakes according to claim 1, characterized in that, The inner wall of the cleaning tub (1) has a first arc-shaped surface (19), and the outer wall of the rotating column (18) has a second arc-shaped surface (24). A cleaning brush (23) is fixed on the bottom outer wall of the second arc-shaped surface (24).

3. The cleaning equipment for facilitating low-temperature drying of plastic bottle flakes according to claim 1, characterized in that, The outer wall of the rotating shaft (20) is fitted with auger blades (32), and the top outer wall of the cleaning tank (1) is fixed with a baffle (12).

4. The cleaning equipment for facilitating low-temperature drying of plastic bottle flakes according to claim 1, characterized in that, The outer wall of the tapered feeding pipe (4) is fixed with a second sealing ring (34), which is rotatably connected to the bottom inner wall of the dehydration barrel (3). The outer wall of the rotating shaft (20) is fixed with a first sealing ring (22), which is rotatably connected to the inner wall of the connecting plate (9).

5. A cleaning device for facilitating low-temperature drying of plastic bottle flakes according to claim 4, characterized in that, The tapered feeding tube (4) has an umbrella-shaped material shield (7) fixed to its bottom outer wall, the output shaft (27) has a tapered baffle (26) fixed to its outer wall, the motor (28) has a tapered mounting rod (5) fixed to its outer wall, and one side of the tapered mounting rod (5) is fixed to the inner wall of the support frame (13).

6. A cleaning device for facilitating low-temperature drying of plastic bottle flakes according to claim 2, characterized in that, A conical block (17) is fixed to the outer wall of the top of the rotating column (18), and a material distribution plate (16) is fixed to the outer wall of the conical block (17).

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