Plastic waste recovery processing equipment and processing method

Abstract

The invention relates to plastic waste recovery processing equipment, and belongs to the technical field of plastic recovery equipment, the plastic waste recovery processing equipment comprises a base, the base is provided with a first cylinder, a second cylinder, a third cylinder and a fourth cylinder, the top of the first cylinder is provided with a first material receiving port used for receiving labeled plastic sheets, and the top of the fourth cylinder is provided with a second material receiving port used for receiving labeled plastic sheets; a partition plate is fixedly connected to the inner side wall of the first barrel, the first barrel is divided into a stirring area and a separation area through the partition plate, a stirring assembly is arranged in the stirring area, a filter plate is installed on the side face, located in the separation area, of the partition plate, a bubble generator is installed at the bottom of the separation area, and the bottom of the separation area is communicated with the second barrel which is internally provided with a water pump. The end, away from the water pump, of the water conveying pipe is arranged at the top of the first barrel, and a cleaning assembly used for cleaning impurities is arranged on the side wall, away from a water outlet of the water conveying pipe, of the first barrel. The device has the effects that the screening effect of the device is enhanced, and the plastic recycling rate is increased.

Description

Technical Field

[0001] This application relates to the field of plastic recycling equipment, and in particular to a plastic waste recycling and processing equipment and a processing method. Background Art

[0002] Plastic is not a single component. It is made up of many materials. Among them, high molecular polymer (or synthetic resin) is the main component of plastic. In addition, in order to improve the performance of plastic, various auxiliary materials such as fillers, plasticizers, lubricants, stabilizers, colorants, antistatic agents, etc. need to be added to the high molecular compound to become plastic with good performance.

[0003] Plastic products are made of plastic. The waste of plastic products can usually be crushed and then recycled, such as the recycling of PET plastic. In the related art, the crushed PET plastic is put into a recycling device, and the plastic is fully stirred with water through a stirring device. The PET plastic sheets with a density greater than that of water sink to the bottom of the device, and the labels and impurities with a density less than that of water float on the water surface. Then, the plastic at the bottom of the device is recycled, and the labels and impurities on the water surface are cleaned up.

[0004] Regarding the above related art, the inventor believes that the stirring device causes some of the plastic at the bottom of the device to float to the water surface. When cleaning the labels and impurities on the water surface, some plastic will also be removed, thereby reducing the recycling rate of plastic. Summary of the Invention

[0005] In order to enhance the screening effect of the device and improve the recycling rate of plastic, this application provides a plastic waste recycling and processing equipment and a processing method.

[0006] A plastic waste recycling and processing equipment provided by this application adopts the following technical solution:

[0007] A plastic waste recycling and processing equipment includes a base. A first cylinder for screening plastic and impurities, a second cylinder for drying plastic, a third cylinder for compressing plastic, and a fourth cylinder for recycling plastic are installed on the base. A first material receiving port for receiving plastic sheets with labels is opened at the top of the first cylinder. A partition is fixedly connected to the inner side wall of the first cylinder. The first cylinder is divided into a stirring area and a separation area by the partition. A stirring component for stirring plastic is arranged in the stirring area. A filter plate is installed on the side of the partition in the separation area. A bubble generator is installed at the bottom of the separation area, and the bottom of the separation area is communicated with the second cylinder. A water pump is installed on the second cylinder. A water delivery pipe is connected to the water pump. The end of the water delivery pipe away from the water pump is arranged at the top of the first cylinder, and a cleaning component for cleaning impurities is arranged on the side wall of the first cylinder away from the water outlet of the water delivery pipe.

[0008] By adopting the above technical solution, the broken plastic pieces are put into the first cylinder body. The broken plastic pieces enter the stirring area through the first material receiving port. Through the stirring component, the broken plastic pieces are fully mixed with water, thereby washing off the labels and impurities on the broken plastic pieces. The washed broken plastic pieces move along the water flow to the separation area. The bubbles generated by the bubble generator float up, further removing the possible labels and impurities between the plastics, improving the screening effect of the device, and increasing the recycling rate of the plastics. The floating labels and impurities are removed by the cleaning component.

[0009] Preferably, it further includes an identification component for detecting plastic fragments. A conveyor belt is arranged on the base. The identification component includes an identification camera installed on the conveyor belt, a first electric push rod installed on the conveyor belt, and a computer. The end of the piston rod of the first electric push rod is fixedly connected with a pushing plate. A second material receiving port for receiving label-free plastic pieces is opened at the top of the third cylinder body.

[0010] By adopting the above technical solution, the plastic fragments on the conveyor belt are identified and detected by the cooperation of the identification camera and the computer. The plastics without labels and impurities pass through the second material receiving port and enter the third cylinder body through the cooperation of the first electric push rod and the pushing plate, while the plastics with labels move along the conveyor belt to the first cylinder body.

[0011] Preferably, the stirring component includes a first motor installed at the bottom of the first cylinder body, a connecting rod installed on the output shaft of the first motor, and a plurality of stirring rods installed on the connecting rod. The stirring rods are arranged staggered along the length direction of the connecting rod.

[0012] By adopting the above technical solution, when the first motor starts, it drives the connecting rod to rotate. The connecting rod rotates to drive the stirring rods to rotate. The rotation of the stirring rods makes the plastic fragments fully stirred with water, thereby improving the cleaning efficiency of the labels and impurities on the surface of the plastic fragments.

[0013] Preferably, the cleaning component includes a cleaning box installed on the first cylinder body, a lifting plate slidably arranged in the cleaning box, and a second electric push rod installed at the bottom of the cleaning box. The piston rod of the second electric push rod penetrates into the cleaning box and is fixedly connected with the lifting plate. The cleaning box is communicated with the first cylinder body, and a sliding plate is slidably arranged at the end of the cleaning box close to the first cylinder body. A plurality of filter holes are opened on the sliding plate.

[0014] By adopting the above technical solution, the liquid level in the first cylinder is ensured to be at the same height as the filtering holes. When water enters the first cylinder through the water delivery pipe, the water drives the movement of the liquid surface, enabling the labels and impurities floating on the liquid surface to pass through the filtering holes and enter the cleaning box. Then, the second electric push rod is started, and the piston rod of the second electric push rod drives the lifting plate to rise, thus facilitating the operator to carry out cleaning.

[0015] Preferably, a ventilation pipe is installed on one side of the second cylinder, and the ventilation pipe is used to communicate with an external high-pressure gas source.

[0016] By adopting the above technical solution, when plastic fragments enter the second cylinder, the ventilation pipe blows out dry gas, which is beneficial to drying the moisture on the plastic fragments.

[0017] Preferably, a first rotating roller and a second rotating roller are rotatably installed on the inner side wall of the second cylinder. A synchronous belt is wound between the first rotating roller and the second rotating roller. A plurality of receiving plates are fixedly connected to the outer peripheral surface of the synchronous belt. The receiving plates are inclined. The second cylinder is communicated with the third cylinder, and a second motor for driving the first rotating roller to rotate is installed on the outer side wall of the second cylinder.

[0018] By adopting the above technical solution, the second motor drives the first rotating roller to rotate. The first rotating roller and the second rotating roller cooperate to drive the synchronous belt and the receiving plates to rotate. The receiving plates are used to receive the plastic fragments in the second cylinder, and the inclined receiving plates are beneficial to sending the plastic fragments into the third cylinder.

[0019] Preferably, an installation box for communicating with the third cylinder is fixedly connected to the outer side wall of the third cylinder. An extrusion block is slidably arranged in the installation box. A third electric push rod is installed on the installation box, and the piston rod of the third electric push rod penetrates into the installation box and is fixedly connected to the extrusion block; the fourth cylinder is communicated with the third cylinder, and a collection box is slidably penetrated through the bottom of the fourth cylinder. The collection box is used to collect the plastic compressed inside the third cylinder.

[0020] By adopting the above technical solution, the third electric push rod is started, and the third electric push rod drives the extrusion block to extrude the plastic fragments, further crushing the plastic fragments and reducing the volume after the plastic fragments are aggregated, facilitating the operator to recycle. The compressed plastic fragments fall into the collection box.

[0021] Preferably, a baffle for closing the third cylinder is slidably penetrated through the middle of the third cylinder. A fourth electric push rod is fixedly connected to the installation box, and the piston rod of the fourth electric push rod is fixedly connected to the baffle.

[0022] By adopting the above technical solution, the cooperation between the baffle and the fourth electric push rod is beneficial to facilitate the operator to open and close the third cylinder body, thereby controlling the volume of the plastic fragments compressed at one time.

[0023] Preferably, a limiting plate is slidably arranged in the installation box. One end of the limiting plate can be abutted against the inner side wall of the third cylinder body. A strip-shaped groove is formed at the other end of the limiting plate. A guiding groove is formed on the inner side wall of the strip-shaped groove. A guiding rod is fixedly connected to the inner end surface of the guiding groove. A guiding block is slidably arranged on the inner side wall of the strip-shaped groove. The guiding rod penetrates through the guiding block and is in sliding fit with the guiding block. The guiding block is fixedly connected to the extrusion block. And a spring is fixedly connected to the guiding block. The end of the spring far away from the guiding block is fixedly connected to the inner end surface of the guiding groove.

[0024] By adopting the above technical solution, the limiting plate is arranged to prevent the compressed plastic fragments from impacting upwards and avoid the possibility of the plastic fragments flying out of the third cylinder body. The arrangements of the guiding rod, the guiding block and the spring facilitate the reset of the limiting plate.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Put the crushed plastic sheets into the first cylinder body. The crushed plastic sheets enter the stirring area through the first material receiving port. The stirring component makes the crushed plastic sheets fully mixed with water, thereby washing off the labels and impurities on the crushed plastic sheets. The crushed plastic sheets after washing move along the water flow to the separation area. The bubbles generated by the bubble generator float upwards, further removing the possible labels and impurities between the plastics, improving the screening effect of the device and the recycling rate of plastics. The floating labels and impurities are removed by the cleaning component;

[0027] A plastic waste recycling and processing method provided by the present application adopts the following technical solution:

[0028] It includes the following steps:

[0029] S1. Transport the plastic fragments through the conveyor belt. The identification camera takes pictures and detects the plastic fragments. The fragments without labels are sent into the third cylinder body through the cooperation of the first electric push rod and the pushing plate. The fragments with labels directly enter the first cylinder body through the conveyor belt;

[0030] S2. Start the water pump to ensure the balance of the water inflow and outflow in the first cylinder body. Start the first motor. The first motor makes the fragments fully stirred with water through the cooperation of the connecting rod and the stirring rod. The water flow drives the floating labels into the cleaning box;

[0031] S3. Start the bubble generator. The bubbles float upwards to further remove the possible labels and impurities mixed in the fragments;

[0032] S4. The fragments enter the second cylinder body, the receiving plate receives the plastic fragments, and the plastic fragments are dried by blowing, and the dried plastic fragments can enter the third cylinder body along the inclined receiving plate;

[0033] S5. In the third cylinder body, the plastic fragments are extruded through the cooperation of the third electric push rod and the extrusion block;

[0034] S6. Start the fourth electric push rod, retract the baffle, and the compressed plastic fragments enter the collection box for recycling and reuse. Description of the Drawings

[0035] Figure 1 It is a schematic structural diagram of the plastic waste recycling and processing equipment according to the embodiment of the present application.

[0036] Figure 2 It is a schematic internal structure diagram of the first cylinder body according to the embodiment of the present application.

[0037] Figure 3 It is a schematic internal structure diagram of the second cylinder body according to the embodiment of the present application.

[0038] Figure 4 It is a schematic structural diagram of the receiving plate according to the embodiment of the present application.

[0039] Figure 5 It is a schematic internal structure diagram of the installation box according to the embodiment of the present application.

[0040] Description of the reference numerals: 1. Base; 11. Conveyor belt; 12. Identification camera; 13. First electric push rod; 14. Push plate; 2. First cylinder body; 21. First material receiving port; 22. Partition board; 23. Filter board; 24. Bubble generator; 3. Second cylinder body; 31. Water pump; 32. Water delivery pipe; 33. First rotating roller; 34. Second rotating roller; 35. Synchronous belt; 36. Second motor; 37. Ventilation pipe; 38. Receiving plate; 4. Third cylinder body; 41. Second material receiving port; 42. Installation box; 43. Third electric push rod; 44. Extrusion block; 45. Fourth electric push rod; 46. Baffle; 47. Limiting plate; 471. Strip-shaped groove; 472. Guide groove; 48. Guide rod; 49. Guide block; 491. Spring; 5. Fourth cylinder body; 51. Collection box; 6. Stirring assembly; 61. First motor; 62. Connecting rod; 63. Stirring rod; 7. Cleaning assembly; 71. Cleaning box; 72. Lifting plate; 73. Second electric push rod; 74. Slide plate; 75. Filter hole. Detailed Embodiments

[0041] The present application will be further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0042] Referring to Figure 1 , a plastic waste recycling and processing device, including a base 1, and the base 1 is horizontally arranged. A first cylinder 2 for screening plastics and impurities, a second cylinder 3 for drying plastics, a third cylinder 4 for compressing plastics, and a fourth cylinder 5 for recycling plastics are installed on the base 1. The first cylinder 2, the second cylinder 3, the third cylinder 4, and the fourth cylinder 5 are all rectangular boxes.

[0043] Referring to Figure 1 , an identification component for detecting plastic fragments is arranged on the base 1, and a conveyor belt 11 is arranged on the fourth cylinder 5. The identification component includes an identification camera 12, a first electric push rod 13, and a computer. The identification camera 12 is installed on the conveyor belt 11 and is used to cooperate with the computer to detect whether there are labels or impurities adhered to the plastic fragments. The first electric push rod 13 is installed on the conveyor belt 11, and a push plate 14 is fixedly connected to the end of the piston rod of the first electric push rod 13. A first material receiving port 21 for receiving plastic sheets with labels is opened at the top of the first cylinder 2, and a second material receiving port 41 for receiving plastic sheets without labels is opened at the top of the third cylinder 4.

[0044] The plastic fragments on the conveyor belt 11 are identified and detected by the cooperation of the identification camera 12 and the computer. The plastics without labels and impurities enter the third cylinder 4 through the cooperation of the first electric push rod 13 and the push plate 14 through the second material receiving port 41, and the plastics with labels move along the conveyor belt 11 into the first cylinder 2.

[0045] Referring to Figure 2 , a partition 22 is fixedly connected to the inner side wall of the first cylinder 2. The partition 22 is located in the middle of the first cylinder 2, and the first cylinder 2 is divided into a stirring area and a separation area by the partition 22. A stirring component 6 for stirring plastics is arranged in the stirring area. The stirring component 6 includes a first motor 61 and a connecting rod 62. The first motor 61 is installed at the bottom of the first cylinder 2, the output shaft of the first motor 61 is arranged vertically, and the connecting rod 62 is coaxially and fixedly connected to the output shaft of the first motor 61. A plurality of stirring rods 63 are installed on the connecting rod 62, and the plurality of stirring rods 63 are arranged staggered along the length direction of the connecting rod 62. When the first motor 61 is started, it drives the connecting rod 62 to rotate. The rotation of the connecting rod 62 drives the stirring rods 63 to rotate, and the rotation of the stirring rods 63 enables the plastic fragments to be fully stirred with water, thereby improving the cleaning efficiency of the labels and impurities on the surface of the plastic fragments.

[0046] Referring to Figure 2, a filter plate 23 is installed on the side of the separation area of the partition plate 22, a bubble generator 24 is installed at the bottom of the separation area, and the bottom of the separation area is communicated with the second cylinder body 3. A water pump 31 is installed on the second cylinder body 3, and a connecting pipe for communicating with the second cylinder body 3 is installed on the water pump 31. A water delivery pipe 32 is communicated with the water pump 31, and the end of the water delivery pipe 32 away from the water pump 31 is arranged at the top of the first cylinder body 2. A cleaning assembly 7 for cleaning impurities is arranged on the side wall of the first cylinder body 2 away from the water outlet of the water delivery pipe 32.

[0047] Referring to Figure 1 , Figure 2 , the cleaning assembly 7 includes a cleaning box 71, a lifting plate 72 and a second electric push rod 73. The cleaning box 71 is installed on the side wall of the first cylinder body 2 away from the water outlet of the water delivery pipe 32. The cleaning box 71 is communicated with the first cylinder body 2, and the upper end of the cleaning box 71 is open. A sliding plate 74 is slidably arranged at the end of the cleaning box 71 close to the first cylinder body 2. The sliding plate 74 vertically penetrates into the cleaning box 71, and a plurality of filter holes 75 are arranged at the height of the liquid level in the first cylinder body 2 on the sliding plate 74. The filter holes 75 are arranged in a matrix. The lifting plate 72 is located in the cleaning box 71, and the lifting plate 72 is slidably matched with the inner side wall of the cleaning box 71. The second electric push rod 73 is installed at the bottom of the cleaning box 71, and the piston rod of the second electric push rod 73 penetrates into the cleaning box 71 and is fixedly connected with the bottom surface of the lifting plate 72.

[0048] The liquid level in the first cylinder body 2 is consistent with the height of the filter holes 75. When water enters the first cylinder body 2 through the water delivery pipe 32, the water drives the surface of the liquid level to move, so that the labels and impurities floating on the liquid surface pass through the filter holes 75 and enter the cleaning box 71. The second electric push rod 73 is started, and the piston rod of the second electric push rod 73 drives the lifting plate 72 to rise, which is convenient for the operator to clean.

[0049] Referring to Figure 3 , Figure 4 , a first rotating roller 33 and a second rotating roller 34 are rotatably installed on the inner side wall of the second cylinder body 3. The first rotating roller 33 and the second rotating roller 34 are arranged at intervals, and a synchronous belt 35 is wound between the first rotating roller 33 and the second rotating roller 34. A plurality of receiving plates 38 are fixedly connected to the outer peripheral surface of the synchronous belt 35. The plurality of receiving plates 38 are arranged at intervals around the synchronous belt 35, and the upper surface of the receiving plate 38 is inclined. A second motor 36 for driving the first rotating roller 33 to rotate is installed on the outer side wall of the second cylinder body 3. The top end of the second cylinder body 3 is communicated with the third cylinder body 4, and a ventilation pipe 37 is installed on the side wall of the second cylinder body 3 away from the third cylinder body 4. The ventilation pipe 37 is used for communicating with an external high-pressure air source.

[0050] The second motor 36 drives the first rotating roller 33 to rotate. The first rotating roller 33 and the second rotating roller 34 cooperate to drive the synchronous belt 35 and the receiving plate 38 to rotate. The receiving plate 38 is used to receive the plastic fragments in the second cylinder body 3. The inclined receiving plate 38 is conducive to feeding the plastic fragments into the third cylinder body 4. The ventilation pipe 37 can blow out dry gas, which is conducive to drying the moisture on the plastic fragments on the one hand, and can assist the plastic fragments to enter the third cylinder body 4 on the other hand.

[0051] Refer to Figure 1 、 Figure 5 , a mounting box 42 for communicating with the third cylinder body 4 is fixedly connected to the outer side wall of the third cylinder body 4. An extrusion block 44 is slidably arranged in the mounting box 42. A third electric push rod 43 is installed on the mounting box 42. The piston rod of the third electric push rod 43 penetrates into the mounting box 42 and is fixedly connected to the extrusion block 44. A baffle 46 for closing the third cylinder body 4 is slidably penetrated through the middle of the third cylinder body 4. A fourth electric push rod 45 is fixedly connected to the mounting box 42. The piston rod of the fourth electric push rod 45 is fixedly connected to the baffle 46. Combining Figure 2 As shown in, the fourth cylinder body 5 communicates with the third cylinder body 4. A collection box 51 is slidably penetrated through the base 1. The upper end of the collection box 51 is open, and the collection box 51 extends into the fourth cylinder body. And the collection box 51 is located below the baffle 46. The collection box 51 is used to collect the compressed plastic inside the third cylinder body 4.

[0052] Refer to Figure 5 , a limiting plate 47 is slidably arranged in the mounting box 42. One end of the limiting plate 47 can abut against the inner side wall of the third cylinder body 4. A strip-shaped groove 471 is formed in the bottom surface of the other end of the limiting plate 47. A guiding groove 472 is formed in the inner side wall of the strip-shaped groove 471. A guiding rod 48 is fixedly connected to the inner end surface of the guiding groove 472. The length direction of the guiding rod 48 is the same as the length direction of the limiting plate 47. A guiding block 49 is slidably arranged on the inner side wall of the strip-shaped groove 471. The guiding rod 48 penetrates through the guiding block 49 and is in sliding fit with the guiding block 49. The guiding block 49 is fixedly connected to the extrusion block 44. And a spring 491 is sleeved on the guiding rod 48 at the end of the guiding groove 472. One end of the spring 491 is fixedly connected to the guiding block 49, and the other end of the spring 491 is fixedly connected to the inner end surface of the guiding groove 472.

[0053] Start the third electric push rod 43. The third electric push rod 43 drives the extrusion block 44 to perform extrusion treatment on the plastic fragments, further crushing the plastic fragments and reducing the volume after the plastic fragments are aggregated, which is convenient for storage. The baffle 46 is retracted through the fourth electric push rod 45, and the compressed plastic fragments fall into the collection box 51, which is convenient for the operator to collect. The arrangement of the limiting plate 47 is used to prevent the compressed plastic fragments from impacting upwards and avoid the possibility of the plastic fragments flying out of the third cylinder body 4.

[0054] The device principle is as follows: Put the broken plastic pieces into the first cylinder 2. The broken plastic pieces enter the stirring area through the first material receiving port 21. Through the stirring assembly 6, the broken plastic pieces are fully mixed with water, thereby washing off the labels and impurities on the broken plastic pieces. The washed broken plastic pieces move along the water flow to the separation area. The bubbles generated by the bubble generator 24 float upward, further removing the possible labels and impurities between the plastics, improving the screening effect of the device and the recycling rate of plastics. The floating labels and impurities are removed by the cleaning assembly 7.

[0055] A plastic waste recycling and processing method provided by this application adopts the following technical solutions:

[0056] It includes the following steps:

[0057] S1. Transport the plastic fragments through the conveyor belt 11, and the identification camera 12 takes pictures of the plastic fragments for detection. The fragments without labels are sent into the third cylinder 4 through the cooperation of the first electric push rod 13 and the push plate 14, and the fragments with labels enter the first cylinder 2 directly through the conveyor belt 11;

[0058] S2. Start the water pump 31 to ensure the balance of the water inflow and outflow in the first cylinder 2. Start the first motor 61. The first motor 61 makes the fragments fully stirred with water through the cooperation of the connecting rod 62 and the stirring rod 63, and the water flow drives the floating labels into the cleaning box 71;

[0059] S3. Start the bubble generator 24, and the bubbles float upward to further remove the possible labels and impurities mixed in the fragments;

[0060] S4. The fragments enter the second cylinder 3. The receiving plate 38 receives the plastic fragments, and the plastic fragments are dried by blowing, and the dried plastic fragments can also enter the third cylinder 4 along the inclined receiving plate 38;

[0061] S5. In the third cylinder 4, the plastic fragments are extruded through the cooperation of the third electric push rod 43 and the extrusion block 44;

[0062] S6. Start the fourth electric push rod 45, retract the baffle 46, and the compressed plastic fragments enter the collection box 51 for convenient recycling and reuse.

[0063] The above embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A plastic waste recycling and processing device, characterized in that: It includes a base (1), on which a first cylinder (2) for screening plastics and impurities, a second cylinder (3) for drying plastics, a third cylinder (4) for compressing plastics, and a fourth cylinder (5) for recycling plastics are installed. A first material receiving port (21) for receiving plastic sheets with labels is opened at the top of the first cylinder (2). A partition plate (22) is fixedly connected to the inner side wall of the first cylinder (2). The first cylinder (2) is divided into a stirring area and a separation area by the partition plate (22). A stirring assembly (6) for stirring plastics is arranged in the stirring area. A filter plate (23) is installed on the side of the partition plate (22) located in the separation area. A bubble generator (24) is installed at the bottom of the separation area, and the bottom of the separation area is communicated with the second cylinder (3). A water pump (31) is installed on the second cylinder (3). A water delivery pipe (32) is communicated with the water pump (31). The end of the water delivery pipe (32) away from the water pump (31) is arranged at the top of the first cylinder (2), and a cleaning assembly (7) for cleaning impurities is arranged on the side wall of the first cylinder (2) away from the water outlet of the water delivery pipe (32).

2. The plastic waste recycling and processing equipment according to claim 1, characterized in that: It also includes an identification assembly for detecting plastic fragments. A conveyor belt (11) is arranged on the base (1). The identification assembly includes an identification camera (12) installed on the conveyor belt (11), a first electric push rod (13) installed on the conveyor belt (11), and a computer. A pushing plate (14) is fixedly connected to the piston rod end of the first electric push rod (13). A second material receiving port (41) for receiving plastic sheets without labels is opened at the top of the third cylinder (4).

3. A plastic waste recycling and processing device according to claim 1, characterized in that: The stirring assembly (6) includes a first motor (61) installed at the bottom of the first cylinder (2), a connecting rod (62) installed on the output shaft of the first motor (61). A plurality of stirring rods (63) are installed on the connecting rod (62), and the stirring rods (63) are arranged staggeredly along the length direction of the connecting rod (62).

4. A plastic waste recycling and processing device according to claim 1, characterized in that: The cleaning assembly (7) includes a cleaning box (71) installed on the first cylinder (2), a lifting plate (72) slidably arranged in the cleaning box (71), and a second electric push rod (73) installed at the bottom of the cleaning box (71). The piston rod of the second electric push rod (73) penetrates into the cleaning box (71) and is fixedly connected to the lifting plate (72). The cleaning box (71) is communicated with the first cylinder (2), and a sliding plate (74) is slidably arranged at the end of the cleaning box (71) close to the first cylinder (2). A plurality of filter holes (75) are opened on the sliding plate (74).

5. A plastic waste recycling and processing device according to claim 1, characterized in that: A ventilation pipe (37) is installed on one side of the second cylinder (3), and the ventilation pipe (37) is used to communicate with an external high-pressure gas source.

6. The plastic waste recycling and processing equipment according to claim 1, characterized in that: A first rotating roller (33) and a second rotating roller (34) are rotatably mounted on the inner side wall of the second cylinder body (3). A synchronous belt (35) is wound between the first rotating roller (33) and the second rotating roller (34). A plurality of receiving plates (38) are fixedly connected to the outer peripheral surface of the synchronous belt (35). The receiving plates (38) are inclined. The second cylinder body (3) is communicated with the third cylinder body (4). A second motor (36) for driving the first rotating roller (33) to rotate is mounted on the outer side wall of the second cylinder body (3).

7. A plastic waste recycling and processing device according to claim 1, characterized in that: An installation box (42) for communicating with the third cylinder body (4) is fixedly connected to the outer side wall of the third cylinder body (4). An extrusion block (44) is slidably arranged in the installation box (42). A third electric push rod (43) is mounted on the installation box (42). The piston rod of the third electric push rod (43) penetrates into the installation box (42) and is fixedly connected to the extrusion block (44). The fourth cylinder body (5) is communicated with the third cylinder body (4). A collection box (51) is slidably penetrated through the bottom of the fourth cylinder body (5). The collection box (51) is used for collecting the plastic compressed inside the third cylinder body (4).

8. A plastic waste recycling and processing device according to claim 7, characterized in that: A baffle plate (46) for closing the third cylinder body (4) is slidably penetrated through the middle of the third cylinder body (4). A fourth electric push rod (45) is fixedly connected to the installation box (42). The piston rod of the fourth electric push rod (45) is fixedly connected to the baffle plate (46).

9. A plastic waste recycling and processing device according to claim 7, characterized in that: A limiting plate (47) is slidably arranged in the installation box (42). One end of the limiting plate (47) can abut against the inner side wall of the third cylinder body (4). A strip-shaped groove (471) is formed at the other end of the limiting plate (47). A guiding groove (472) is formed on the inner side wall of the strip-shaped groove (471). A guiding rod (48) is fixedly connected to the inner end surface of the guiding groove (472). A guiding block (49) is slidably arranged on the inner side wall of the strip-shaped groove (471). The guiding rod (48) penetrates through the guiding block (49) and is in sliding fit with the guiding block (49). The guiding block (49) is fixedly connected to the extrusion block (44). A spring (491) is fixedly connected to the guiding block (49). The end of the spring (491) away from the guiding block (49) is fixedly connected to the inner end surface of the guiding groove (472).

10. A method for recycling and processing plastic waste, based on the plastic waste recycling and processing equipment according to any one of claims 1-9, characterized in that: Including the following steps: S1. Transport the plastic fragments through the conveyor belt (11). The identification camera (12) takes pictures and detects the plastic fragments. The fragments without labels are sent into the third cylinder body (4) through the cooperation of the first electric push rod (13) and the pushing plate (14). The fragments with labels directly enter the first cylinder body (2) through the conveyor belt (11). S2. Start the water pump (31) to ensure the balance of the water inflow and outflow in the first cylinder body (2). Start the first motor (61). The first motor (61) makes the fragments fully stirred with water through the cooperation of the connecting rod (62) and the stirring rod (63). The water flow drives the floating labels into the cleaning box (71). S3. Start the bubble generator (24). The bubbles float upward to further remove the possible labels and impurities mixed in the debris; S4. The debris enters the second cylinder body (3). The receiving plate (38) receives the plastic debris. The plastic debris is dried by blowing air, and the dried plastic debris can enter the third cylinder body (4) along the inclined receiving plate (38); S5. In the third cylinder body (4), the plastic debris is extruded through the cooperation of the third electric push rod (43) and the extrusion block (44); S6. Start the fourth electric push rod (45) to retract the baffle plate (46), and the compressed plastic debris enters the collection box (51).

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