Plastic waste recycling device

Abstract

The invention relates to the technical field of plastic recovery treatment, and discloses a plastic waste recovery treatment device which comprises a treatment tank and an aeration assembly. An aeration pipe located in the treatment tank and a driving part for driving the aeration pipe to rotate are installed on the treatment tank, the aeration pipe is fixedly sleeved with a loading disc located in the upper area in the treatment tank, a plurality of magnetic bars arranged in the circumferential direction of the aeration pipe are installed at the bottom of the loading disc, and the magnetic bars are used for stirring plastic and adsorbing scrap iron in the plastic; the bottom of the loading disc is magnetically matched with a scraping piece arranged on the multiple magnetic bars in a sleeving mode. And the aeration assembly is used for aerating the bottom of the treatment tank and distributing gas into the aeration pipe to achieve a synergistic effect. Plastic stirring cleaning and scrap iron adsorption are synchronously achieved by rotating the magnetic bar, synergistic aeration is combined with bottom aeration and the middle aeration pipe, the cleaning and scrap iron adsorption effects are enhanced, after cleaning, the scraping piece moves downwards to remove scrap iron of the magnetic bar and scrape the tank wall, and scrap iron recycling and tank body self-cleaning are achieved.

Description

Technical Field

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

[0002] Plastic waste refers to discarded plastic materials generated during the production, processing, and use of plastic products. It includes residues of plastic products of various shapes, sizes, and materials. The sources of plastic waste are wide-ranging, covering plastic packaging in daily life, disposable plastic products, scraps from industrial production, and discarded plastic parts. With the widespread use of plastic products, the amount of plastic waste generated is also increasing, putting enormous pressure on the environment. In order to achieve resource recycling and environmental protection, it is necessary to recycle plastic waste. During the recycling process, plastic waste is usually covered with various dirt, impurities, and pollutants. These dirt not only affect the quality of plastic recycling but may also cause equipment failure in subsequent processing. Therefore, when recycling plastic waste, it is necessary to clean it to remove dirt and impurities from the plastic surface.

[0003] In existing plastic waste recycling technologies, the washing process typically involves placing plastic waste into a large washing tank for centralized cleaning. Before washing, iron items (such as bolts and metal washers) are manually removed, but some metal items inevitably get mixed in during the process. Furthermore, plastic waste often contains metal impurities, such as iron filings, during use. These iron filings or iron items are stirred and rinsed together with the plastic waste during the washing process, making effective separation difficult. Ultimately, the iron filings or iron items are discharged from the washing system with the wastewater, not only wasting iron resources but also increasing the difficulty and cost of wastewater treatment.

[0004] To address the aforementioned problems, this application proposes a plastic waste recycling and processing device. Summary of the Invention

[0005] This invention proposes a plastic waste recycling and processing device, which solves the problem in related technologies that the centralized cleaning method cannot effectively separate metal impurities such as iron filings and iron products mixed in during plastic waste cleaning, resulting in waste of iron resources and increased difficulty and cost of sewage treatment.

[0006] The present invention proposes a plastic waste recycling and processing device, comprising a processing tank and an aeration assembly;

[0007] The treatment tank is equipped with an aeration pipe located inside it and a drive component that drives its rotation. A loading plate located in the upper part of the treatment tank is fixedly mounted on the aeration pipe. Multiple magnetic rods arranged around the aeration pipe are installed at the bottom of the loading plate. The magnetic rods are used to agitate the plastic and adsorb iron filings therein. A scraper sleeve is magnetically attached to the bottom of the loading plate.

[0008] The aeration assembly is used to aerate the bottom of the treatment tank and to divert the gas into the aeration pipe for synergistic effect.

[0009] The treatment tank is equipped with a pusher that drives the scraper to slide along the magnetic rod and scrape its outer periphery.

[0010] As a further optimization of the present invention, the scraping component includes a scraping disc and a magnetic shaft head. Two loading channels are symmetrically opened on the loading disc, and a magnetic cylinder is installed in each loading channel. A through insertion channel is opened in the magnetic cylinder. The scraping disc is set at the bottom of the loading disc and slidably sleeved on multiple magnetic rods. Two magnetic shaft heads are fixed on the scraping disc. The two magnetic shaft heads are respectively inserted into the insertion channels in the two magnetic cylinders, and the magnetic shaft heads are magnetically connected to the magnetic cylinders. An annular groove is opened on the inner wall of the treatment tank to cooperate with the loading disc and the scraping disc, so that the loading disc and the scraping disc do not contact the inner wall of the treatment tank. The magnetic shaft head is pushed by the pushing component to make the scraping disc move down along the magnetic rods to scrape its outer periphery. When the scraping disc moves down, it fits against the inner wall of the treatment tank to scrape.

[0011] As a further optimization of the present invention, the pushing component includes a loading cylinder, a cylinder and an electromagnetic block. Two loading cylinders are symmetrically installed on the top of the processing tank. The two loading cylinders are respectively located above two magnetic cylinders. A cylinder is installed on the loading cylinder. The driving end of the cylinder is connected to an electromagnetic block located inside the loading cylinder. The electromagnetic block is driven by the cylinder to push the magnetic shaft head and the scraping disk downward. When moving back, the electromagnetic block is energized to drive the magnetic shaft head to insert into the magnetic cylinder.

[0012] As a further optimization of the present invention, the aeration pipe has multiple sets of spaced aeration holes arranged along its length, the multiple sets of aeration holes are located in the area between multiple magnetic rods, the top of the treatment tank is equipped with a rotary joint located above the aeration pipe, and the rotating air outlet end of the rotary joint is connected to the top end of the aeration pipe, and the aeration assembly is connected to the air inlet end of the rotary joint.

[0013] As a further optimization of the present invention, the aeration assembly includes an air pump, a distribution box, an aeration element, and a distribution pipe. The air outlet of the air pump is connected to the distribution box, and the aeration element and the distribution pipe are connected to the distribution box. The aeration element is connected to the bottom outer side of the treatment tank. The end of the distribution pipe away from the distribution box is connected to the air inlet of the rotary joint, and a fourth valve is installed on the path of the distribution pipe.

[0014] As a further optimization of the present invention, the aeration component includes an air guide pipe and an aeration nozzle. The aeration nozzle is connected to the outer side of the bottom of the treatment tank. The air guide pipe is connected between the diversion box and the aeration nozzle. A third valve is installed on the air guide pipe.

[0015] As a further optimization of the present invention, the driving component includes a motor, a driving gear and a driven gear. The driven gear is fixedly mounted on the aeration pipe and located between the treatment tank and the rotary joint. The motor is mounted on the top of the treatment tank and located on one side of the rotary joint. The output end of the motor is connected to the driving gear that meshes with the driven gear.

[0016] As a further optimization of the present invention, a drain pipe is connected to the bottom outer side of the treatment tank, and a second valve is installed on the drain pipe.

[0017] As a further optimization of the present invention, a feed hopper is installed on the outer periphery of the processing tank, and a discharge pipe is connected to the bottom of the processing tank, with a first valve installed on the discharge pipe.

[0018] As a further optimization of the present invention, the back of the treatment tank is connected to a water inlet pipe that allows water to flow into its interior.

[0019] The above-described technical solution of the present invention has the following beneficial technical effects:

[0020] 1. This invention involves placing plastic into a treatment tank, then introducing water into it. Subsequently, a drive unit drives an aeration pipe to rotate a loading disc and multiple magnetic rods arranged in a ring at its bottom. As the magnetic rods rotate, they agitate the mixture of plastic and water, achieving a stirring and cleaning effect. Furthermore, the magnetic rods adsorb iron filings carried in the plastic during the stirring process. The above method simultaneously achieves stirring and cleaning and iron filings adsorption during the rotation of the magnetic rods, effectively improving the iron filings removal efficiency, avoiding the problem of iron filings being difficult to separate in traditional cleaning methods, and reducing the waste of iron resources.

[0021] 2. To improve the magnetic rods' adsorption of iron filings and the cleaning effect on plastics, this device connects an aeration component to the bottom of the treatment tank. The aeration component introduces gas into the water within the tank, aerating the water used for cleaning the plastics. This helps to better remove dirt attached to the plastics. During this process, the aeration component delivers some gas to the aeration pipe. Since the aeration pipe is positioned between multiple magnetic rods, it disperses the gas from the center outwards, creating a synergistic effect with the aeration from the aeration component at the bottom of the treatment tank. This further enhances the cleaning effect on the plastics and allows the iron filings carried in the plastics to be better adsorbed onto the magnetic rods. This design, through the synergistic aeration effect of the aeration component and aeration pipe, enhances water flow disturbance and dirt removal, while also promoting contact and adsorption between iron filings and the magnetic rods, thus improving cleaning efficiency and iron filings recovery rate.

[0022] 3. After the plastic is cleaned, the wastewater can be discharged through the drain pipe at the bottom of the treatment tank, and then the plastic can be discharged through the discharge pipe. Subsequently, the scraper mounted on multiple magnetic rods can be pushed down by the pusher component. The scraper scrapes the outer circumference of the magnetic rods to remove iron filings, which are then discharged through the discharge pipe, thus separating the plastic from the iron filings. As the scraper moves down, it also scrapes the dirt on the inner wall of the treatment tank, achieving a cleaning effect. After cleaning the iron filings on the magnetic rods, the pusher component can be energized to move the scraper back to the bottom of the loading tray and magnetically connect it, ready for the next operation. The above design, which uses the pusher component to drive the scraper down, can not only effectively remove the iron filings adsorbed on the surface of the magnetic rods, but also simultaneously scrape the dirt on the inner wall of the treatment tank, realizing the dual functions of iron filings recovery and tank cleaning. This improves the automation level, operating efficiency, and self-cleaning ability of the device, while reducing the labor maintenance cost and the burden of wastewater treatment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a plastic waste recycling and processing device proposed in this invention;

[0024] Figure 2 This is a schematic diagram of the bottom structure of a plastic waste recycling and processing device proposed in this invention;

[0025] Figure 3 This is an internal sectional view of the processing tank of the present invention;

[0026] Figure 4 This is a schematic diagram of the cooperative structure of the loading disk, magnetic rod, and scraper of the present invention;

[0027] Figure 5 This is a schematic diagram of the bottom structure of the loading disk and magnetic rod of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the wiping component of the present invention;

[0029] Figure 7 This is a schematic diagram of the mating structure between the driving component and the aeration assembly of the present invention;

[0030] Figure 8 This is a schematic diagram of the aeration component of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of the pushing component of the present invention.

[0032] Reference numerals: 1. Treatment tank; 101. Feed hopper; 102. Discharge pipe; 1021. First valve; 103. Sewage pipe; 1031. Second valve; 104. Water inlet pipe; 2. Aeration pipe; 21. Aeration hole; 22. Rotary joint; 3. Drive component; 31. Motor; 32. Drive gear; 33. Driven gear; 4. Loading disc; 41. Magnetic rod; 42. Magnetic cylinder; 5. Scraper component; 51. Scraper disc; 52. Magnetic shaft head; 6. Pushing component; 61. Loading cylinder; 62. Cylinder; 63. Electromagnetic block; 7. Aeration assembly; 71. Air pump; 72. Diversion box; 73. Aeration component; 731. Air guide pipe; 732. Aeration nozzle; 733. Third valve; 74. Diversion pipe; 741. Fourth valve. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0034] like Figure 1-9 As shown, the present invention proposes a plastic waste recycling and processing device, which includes a processing tank 1 and an aeration component 7.

[0035] The treatment tank 1 is equipped with an aeration pipe 2 located inside it and a drive component 3 that drives it to rotate. A loading plate 4 located in the upper part of the treatment tank 1 is fixedly mounted on the aeration pipe 2. Multiple magnetic rods 41 arranged around the aeration pipe 2 are installed at the bottom of the loading plate 4. The magnetic rods 41 are used to agitate the plastic and adsorb iron filings therein. A scraper 5 is magnetically fitted on the bottom of the loading plate 4 and attached to the multiple magnetic rods 41.

[0036] The aeration component 7 is used to aerate the bottom of the treatment tank 1 and to divert the gas to the aeration pipe 2 for synergistic effect;

[0037] The treatment tank 1 is equipped with a pusher 6 that drives the scraper 5 to slide along the magnetic rod 41 to scrape its outer periphery.

[0038] During operation, water and plastic waste are injected into the treatment tank 1. The drive unit 3 is activated, causing the aeration pipe 2 and the loading plate 4 fixed thereon to rotate. This causes the multiple magnetic rods 41 at the bottom of the loading plate 4 to rotate in the treatment tank 1. The rotating magnetic rods 41 mechanically stir the plastic and water to achieve a cleaning function. On the other hand, their magnetic properties can adsorb magnetic metal impurities such as iron filings mixed in the plastic, achieving simultaneous stirring and magnetic separation adsorption. At the same time, the aeration component 7 aerates the water from two positions: the bottom of the treatment tank 1 and the middle of the aeration pipe 2, generating a large number of bubbles. The rising of the bubbles violently disturbs the water flow, enhancing the scouring force on the plastic surface, making it easier to peel off dirt, and causing iron filings to come into full contact with the magnetic rods 41 in the turbulent flow and be adsorbed. After cleaning, the pusher 6 pushes the scraper 5 to slide down along the magnetic rods 41 to scrape off the iron filings adsorbed on the surface of the magnetic rods 41, completing the iron filings recycling and the cleaning of the magnetic rods 41. This design realizes the integration and automation of cleaning, iron filings separation and recycling, and self-cleaning.

[0039] In this embodiment, the scraping component 5 includes a scraping disc 51 and a magnetic shaft head 52. Two loading channels are symmetrically opened on the loading disc 4, and a magnetic cylinder 42 is installed in each loading channel. A through insertion channel is opened in the magnetic cylinder 42. The scraping disc 51 is set at the bottom of the loading disc 4 and is slidably sleeved on multiple magnetic rods 41. Two magnetic shaft heads 52 are fixed on the scraping disc 51. The two magnetic shaft heads 52 are respectively inserted into the insertion channels in the two magnetic cylinders 42, and the magnetic shaft heads 52 are magnetically connected to the magnetic cylinders 42. An annular groove is opened on the inner wall of the treatment tank 1 to cooperate with the loading disc 4 and the scraping disc 51, so that the loading disc 4 and the scraping disc 51 do not contact the inner wall of the treatment tank 1. The magnetic shaft head 52 is pushed by the pushing component 6 to make the scraping disc 51 move down along the magnetic rods 41 to scrape its outer periphery. When the scraping disc 51 moves down, it fits against the inner wall of the treatment tank 1 to scrape.

[0040] In the non-cleaning state, that is, when cleaning and adsorbing iron filings, the scraper 51 is fixed to the bottom of the loading plate 4 by magnetic attraction between the magnetic shaft head 52 on it and the magnetic cylinder 42 inside the loading plate 4, and rotates together with the loading plate 4. Since the inner wall of the processing tank 1 has an annular groove that matches the loading plate 4 and the scraper 51, the scraper 51 does not contact the inner wall of the processing tank 1 at this time, so as to avoid interfering with the stirring process.

[0041] When cleaning is required, the pushing component 6 acts on the magnetic shaft head 52, applying a downward force to overcome the magnetic force between the magnetic shaft head 52 and the magnetic cylinder 42, driving the entire scraping disc 51 to move downward along the magnetic rod 41. During the downward movement, the scraping disc 51 scrapes the outer surface of the magnetic rod 41, removing the iron filings attached to it. At the same time, the outer edge of the scraping disc 51 adheres to the inner wall of the treatment tank 1. As it moves downward, it scrapes away the dirt deposited or attached to the inner wall of the treatment tank 1. The design of the annular groove ensures that the rotating component does not rub against the inner wall of the treatment tank 1, while cleaning the inner wall of the treatment tank 1 during the downward scraping. This structure combines the cleaning of the magnetic rod 41 with the cleaning of the inner wall of the treatment tank 1, simplifying the structure and improving the cleaning efficiency.

[0042] In this embodiment, the pushing component 6 includes a loading cylinder 61, a cylinder 62, and an electromagnetic block 63. Two loading cylinders 61 are symmetrically installed on the top of the processing tank 1. The two loading cylinders 61 are respectively located above two magnetic cylinders 42. A cylinder 62 is installed on the loading cylinder 61. The driving end of the cylinder 62 is connected to the electromagnetic block 63 located inside the loading cylinder 61. The electromagnetic block 63 is driven by the cylinder 62 to push the magnetic shaft head 52 and the scraping disk 51 downward. When moving back, the electromagnetic block 63 is energized to drive the magnetic shaft head 52 to insert into the magnetic cylinder 42.

[0043] At the start of the cleaning process, cylinder 62 pushes electromagnetic block 63 downward. Since electromagnetic block 63 is not energized at this time, it mainly acts as a mechanical push rod, directly acting on the top of magnetic shaft head 52 to push it downward, thereby driving the entire scraper 5 to move downward for the scraping task. After the cleaning task is completed, electromagnetic block 63 is energized, generating a magnetic field that attracts the top of magnetic shaft head 52. Through cylinder 62, electromagnetic block 63 moves back, which can lift the entire scraper 5 upward through magnetic shaft head 52, resetting it until magnetic shaft head 52 is reinserted and attracted into magnetic cylinder 42, restoring the initial state.

[0044] In this embodiment, multiple sets of spaced aeration holes 21 are provided along the length of the aeration pipe 2. The multiple sets of aeration holes 21 are located in the area between multiple magnetic rods 41. A rotary joint 22 is installed on the top of the treatment tank 1 above the aeration pipe 2, and the rotating air outlet end of the rotary joint 22 is connected to the top end of the aeration pipe 2. The aeration assembly 7 is connected to the air inlet end of the rotary joint 22. The compressed gas generated by the aeration assembly 7 is transported to the aeration pipe 2 through the rotary joint 22. The gas flows along the aeration pipe 2 and is released into the water through the multiple sets of aeration holes 21 provided on its pipe wall. Since these aeration holes 21 are located in the area between multiple magnetic rods 41, the gas can diffuse from the center to the surrounding area, forming a cross aeration network with the bubbles rising from the bottom. This not only enhances the turbulence of the water flow and improves the cleaning effect, but also the rising movement of the bubbles can drive the iron filings in the water to move towards the area of ​​the magnetic rods 41, increasing the probability of collision between the iron filings and the magnetic rods 41, thereby improving the adsorption efficiency of the iron filings.

[0045] In this embodiment, the aeration assembly 7 includes an air pump 71, a distribution box 72, an aeration element 73, and a distribution pipe 74. The air outlet of the air pump 71 is connected to the distribution box 72. The aeration element 73 and the distribution pipe 74 are connected to the distribution box 72. The aeration element 73 is connected to the bottom outer side of the treatment tank 1. The end of the distribution pipe 74 away from the distribution box 72 is connected to the air inlet of the rotary joint 22. A fourth valve 741 is installed on the path of the distribution pipe 74.

[0046] Air pump 71 delivers compressed air to distribution box 72, which divides the airflow into two paths. One path leads to the bottom of treatment tank 1 through aeration element 73 for bottom aeration, while the other path leads to rotary joint 22 through distribution pipe 74, which then supplies the central aeration pipe 2. Fourth valve 741 is used to regulate or switch the airflow to the central aeration pipe 2. By controlling fourth valve 741, the intensity of bottom aeration and central aeration can be adjusted independently, and central aeration can even be turned off as needed to perform only bottom aeration. This achieves control of aeration mode and airflow distribution to adapt to the cleaning needs of plastics with different levels of contamination, thus achieving energy saving and efficient cleaning.

[0047] In this embodiment, the aeration component 73 includes an air guide pipe 731 and an aeration nozzle 732. The aeration nozzle 732 is connected to the outer side of the bottom of the treatment tank 1. The air guide pipe 731 is connected between the diversion box 72 and the aeration nozzle 732. A third valve 733 is installed on the air guide pipe 731. The gas separated from the diversion box 72 is transported to the aeration nozzle 732 installed at the bottom of the treatment tank 1 through the air guide pipe 731. The aeration nozzle 732 releases the gas into the water at the bottom of the treatment tank 1 in the form of fine bubbles. These bubbles pass through the entire water body from bottom to top under the action of buoyancy, generating a rolling and scouring effect on the plastic, which helps to remove stubborn dirt. The third valve 733 installed on the air guide pipe 731 is used to control the on / off state and the amount of air at the bottom aeration, so that the operator can adjust the intensity of bottom aeration and cooperate with the center aeration to achieve effective cleaning and impurity suspension.

[0048] In this embodiment, the driving component 3 includes a motor 31, a driving gear 32, and a driven gear 33. The driven gear 33 is fixedly mounted on the aeration pipe 2 and located between the treatment tank 1 and the rotary joint 22. The motor 31 is mounted on the top of the treatment tank 1 and located on one side of the rotary joint 22. The output end of the motor 31 is connected to the driving gear 32, which meshes with the driven gear 33. After the motor 31 is started, the driven gear 33 is driven to rotate by the rotation of the driving gear 32. When the driven gear 33 rotates, it drives the aeration pipe 2 to rotate. Since the loading disc 4 is fixedly mounted on the aeration pipe 2, the magnetic rod 41 and the scraper 5 also rotate together when not in the cleaning state.

[0049] In this embodiment, a drain pipe 103 is connected to the outer bottom of the treatment tank 1, and a second valve 1031 is installed on the drain pipe 103. The drain pipe 103 is used to discharge the wastewater generated during cleaning after cleaning is completed. The second valve 1031 controls the opening and closing of the drain pipe 103. When drainage is required, the second valve 1031 is opened, and the wastewater is discharged after being filtered by the filter screen. After drainage is completed, the second valve 1031 is closed to prepare for the next operation.

[0050] In this embodiment, a feed hopper 101 is installed on the outer periphery of the treatment tank 1, and a discharge pipe 102 is connected to the bottom of the treatment tank 1. A first valve 1021 is installed on the discharge pipe 102. The feed hopper 101 is the inlet for plastic waste, and its structure facilitates the smooth entry of materials into the treatment tank 1. The discharge pipe 102 is the outlet for the cleaned plastic material and the scraped iron filings. The first valve 1021 controls the opening and closing of the discharge pipe 102. After cleaning and iron filings adsorption are completed, the sewage is first discharged through the sewage pipe 103, and then the first valve 1021 is opened so that the cleaned plastic and the iron filings scraped off by the scraper 5 can be discharged here for collection or subsequent processing.

[0051] In this embodiment, the back of the treatment tank 1 is connected to a water inlet pipe 104 that allows water to flow into it; the water inlet pipe 104 is connected to an external water source and is used to inject water required for cleaning into the treatment tank 1. The amount of water injected can be adjusted according to the amount of plastic added to ensure that the plastic can be fully soaked and agitated.

[0052] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A plastic waste recycling and processing device, characterized in that, Includes a treatment tank (1) and an aeration assembly (7); The treatment tank (1) is equipped with an aeration pipe (2) located inside it and a drive component (3) that drives it to rotate. A loading plate (4) located in the upper part of the treatment tank (1) is fixedly mounted on the aeration pipe (2). Multiple magnetic rods (41) arranged around the aeration pipe (2) are installed at the bottom of the loading plate (4). The magnetic rods (41) are used to agitate the plastic and adsorb the iron filings therein. A scraper (5) is magnetically fitted on the bottom of the loading plate (4) and mounted on the multiple magnetic rods (41). The aeration assembly (7) is used to aerate the bottom of the treatment tank (1) and to divert the gas to the aeration pipe (2) for synergistic effect; The processing tank (1) is equipped with a pusher (6) that drives the scraper (5) to slide along the magnetic rod (41) to scrape its outer periphery.

2. The plastic waste recycling and processing device according to claim 1, characterized in that, The scraping component (5) includes a scraping disc (51) and a magnetic shaft head (52). Two loading channels are symmetrically opened on the loading disc (4), and a magnetic cylinder (42) is installed in each loading channel. A through insertion channel is opened inside the magnetic cylinder (42). The scraping disc (51) is located at the bottom of the loading disc (4) and slidably fitted onto multiple magnetic rods (41). Two magnetic shaft heads (52) are fixed on the scraping disc (51), and the two magnetic shaft heads (52) are respectively inserted into the two magnetic cylinders (41). 2) In the insertion channel inside, the magnetic shaft head (52) is magnetically connected to the magnetic cylinder (42). The inner wall of the treatment tank (1) is provided with an annular groove that cooperates with the loading plate (4) and the scraping plate (51), so that the loading plate (4) and the scraping plate (51) do not contact the inner wall of the treatment tank (1). The magnetic shaft head (52) is pushed by the pushing member (6) to make the scraping plate (51) move down along the magnetic rod (41) to scrape its outer periphery. When the scraping plate (51) moves down, it fits against the inner wall of the treatment tank (1) to scrape.

3. The plastic waste recycling and processing device according to claim 2, characterized in that, The pushing component (6) includes a loading cylinder (61), a cylinder (62) and an electromagnetic block (63). Two loading cylinders (61) are symmetrically installed on the top of the processing tank (1). The two loading cylinders (61) are located above the two magnetic cylinders (42) respectively. A cylinder (62) is installed on the loading cylinder (61). The driving end of the cylinder (62) is connected to the electromagnetic block (63) located inside the loading cylinder (61). The electromagnetic block (63) is driven by the cylinder (62) to push the magnetic shaft head (52) and the scraping disk (51) downward. When moving back, the electromagnetic block (63) is energized to drive the magnetic shaft head (52) to insert into the magnetic cylinder (42).

4. The plastic waste recycling and processing device according to claim 1, characterized in that, The aeration pipe (2) has multiple sets of spaced aeration holes (21) along its length. The multiple sets of aeration holes (21) are located in the area between multiple magnetic rods (41). The top of the treatment tank (1) is equipped with a rotary joint (22) located above the aeration pipe (2), and the rotating air outlet end of the rotary joint (22) is connected to the top end of the aeration pipe (2). The aeration assembly (7) is connected to the air inlet end of the rotary joint (22).

5. A plastic waste recycling and processing device according to claim 4, characterized in that, The aeration assembly (7) includes an air pump (71), a distribution box (72), an aeration element (73), and a distribution pipe (74). The air outlet of the air pump (71) is connected to the distribution box (72). The aeration element (73) and the distribution pipe (74) are connected to the distribution box (72). The aeration element (73) is connected to the bottom outside of the treatment tank (1). The end of the distribution pipe (74) away from the distribution box (72) is connected to the air inlet of the rotary joint (22). A fourth valve (741) is installed on the path of the distribution pipe (74).

6. The plastic waste recycling and processing device according to claim 5, characterized in that, The aeration element (73) includes an air guide pipe (731) and an aeration nozzle (732). The aeration nozzle (732) is connected to the outside of the bottom of the treatment tank (1). The air guide pipe (731) is connected between the diversion box (72) and the aeration nozzle (732). A third valve (733) is installed on the air guide pipe (731).

7. A plastic waste recycling and processing device according to claim 4, characterized in that, The drive unit (3) includes a motor (31), a drive gear (32) and a driven gear (33). The driven gear (33) is fixedly mounted on the aeration pipe (2) and located between the treatment tank (1) and the rotary joint (22). The motor (31) is mounted on the top of the treatment tank (1) and located on one side of the rotary joint (22). The output end of the motor (31) is connected to the drive gear (32) that meshes with the driven gear (33).

8. The plastic waste recycling and processing device according to claim 1, characterized in that, The bottom outside of the treatment tank (1) is connected to a drain pipe (103), and a second valve (1031) is installed on the drain pipe (103).

9. A plastic waste recycling and processing device according to claim 1, characterized in that, The processing tank (1) is equipped with a feed hopper (101) on its outer periphery, and a discharge pipe (102) is connected to the bottom of the processing tank (1). A first valve (1021) is installed on the discharge pipe (102).

10. A plastic waste recycling and processing device according to claim 1, characterized in that, The back of the treatment tank (1) is connected to a water inlet pipe (104) that allows water to flow into it.

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