Wastewater treatment plant for waste plastic recycling

Abstract

The invention relates to the technical field of sewage treatment equipment, and specifically discloses a sewage treatment device for recycling waste plastics, comprising a tank body, a liquid inlet, a liquid discharge port and a vacuum pump. A partition plate is arranged in the tank body, a degassing chamber is formed between the top of the tank body and the partition plate, the vacuum pump is used to evacuate the degassing chamber, a degassing chamber is formed between the bottom of the tank body and the partition plate, the tank body is provided with a vacuum pump for evacuating the degassing chamber, a flow groove for connecting the degassing chamber one and the degassing chamber two is opened on the partition plate one, a connecting mechanism is installed in the flow groove, the connecting mechanism comprises an impeller and a driving component for blocking the flow groove, the impeller rotates in coordination with the partition plate one, the driving component drives the impeller to rotate, and pushes the liquid in the degassing chamber one to flow into the degassing chamber two; the sewage treatment device for recycling waste plastics of the invention has the effect of improving the degassing efficiency of the liquid.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment equipment, and in particular to a sewage treatment device for recycling waste plastics. Background Art

[0002] As the consumption of plastic products continues to increase, waste plastics are also increasing. my country's waste plastics mainly include plastic films, plastic threads and woven products, foam plastics, plastic packaging boxes and containers, daily plastic products, plastic bags and agricultural mulch, etc. Waste plastics are usually recycled and reused. In the process of recycling waste plastics, a large amount of sewage will be generated. If these sewage is directly discharged without treatment, it will cause serious pollution to the environment and may cause harm to human health. The treatment of waste plastic sewage mainly involves the removal of microplastics. The whole process of removing microplastics in sewage mainly includes the following steps: pretreatment → chemical oxidation → flocculation sedimentation → adsorption → advanced oxidation treatment → post-treatment.

[0003] Before advanced oxidation treatment, vacuum degassing is usually used to evacuate the water entering the degassing tank, precipitate free and dissolved air and oxygen in the water, and discharge them from the tank through an automatic exhaust valve to achieve the purpose of degassing and deoxygenation. This method is simple and low-cost, and vacuum degassing can improve sewage treatment efficiency, reduce air resistance in the system, prevent equipment corrosion, and extend the service life of equipment such as water pumps.

[0004] The Chinese patent application document with publication number CN114534319A discloses a device for realizing dynamic vacuum degassing, including a tank body, a vertical multi-stage pump for vacuuming, a degassing mechanism is arranged inside the tank body, the degassing mechanism extends outside the tank body, a mesh plate is arranged inside the tank body, auxiliary components are arranged on both sides of the bottom of the mesh plate, and a degassing component is arranged on the top of the mesh plate; when working, the tank body is vacuumed by the vertical multi-stage pump, and the liquid is discharged into the tank body through the water inlet pipe, and the motor is started at the same time, the motor drives the square rod, the first pulley, the second pulley, and the reciprocating screw to rotate, and the reciprocating screw rotates to drive the sliding seat, the mesh plate, and the reciprocating screw to rotate. The plate moves upward, and the rotation of the square rod will also drive multiple connecting rods and stirring plates to rotate, thereby driving the liquid inside the tank to rotate. The rotation of the square rod will also drive the sleeve and the knocking plate to rotate. The rotation of the knocking plate will knock on the baffle. When the mesh plate moves upward, the water tank will drive the liquid inside the tank to move upward, and the liquid inside the water tank will flow into the fixed box through the connecting groove and the through groove. At the same time, the water pump is started. The water pump can transfer the liquid inside the fixed box to the water inlet pipe, so that the liquid inside the water tank can be circulated and degassed. Finally, when the degassing is completed, the liquid can be discharged through the discharge pipe.

[0005] In the above technology, when the vacuum degassing device degasses the liquid, after the liquid in the tank is completely degassed, the liquid is discharged through the discharge pipe, and then liquid is injected into the tank for degassing. This cycle is repeated, and it is difficult to continuously degas the liquid, resulting in low degassing efficiency of the liquid. Summary of the invention

[0006] The present invention provides a wastewater treatment device for recycling waste plastics, aiming to solve the technical problem of low degassing efficiency of liquid in the prior art.

[0007] The wastewater treatment device for recycling waste plastics of the present invention comprises a tank body, a liquid inlet, a liquid discharge port and a vacuum pump. A partition plate is provided in the tank body. A degassing chamber is formed between the top of the tank body and the partition plate. The vacuum pump is used to evacuate the degassing chamber. A degassing chamber is formed between the bottom of the tank body and the partition plate. The tank body is provided with a vacuum pump for evacuating the degassing chamber. A flow groove for connecting the degassing chambers one and two is provided on the partition plate. A connecting mechanism is installed in the flow groove. The connecting mechanism comprises an impeller and a driving assembly for blocking the flow groove. The impeller rotates and cooperates with the partition plate. The driving assembly drives the impeller to rotate and pushes the liquid in the degassing chamber one to flow into the degassing chamber two.

[0008] Beneficial effect: Through the setting of partition plate one, the tank body can be divided into degassing chamber one and degassing chamber two, vacuum pump one can evacuate degassing chamber one, and vacuum pump two can evacuate degassing chamber two, and through the setting of the connecting mechanism, degassing chamber one and degassing chamber two can be separated, and the impeller is driven to rotate by the driving component, so that the liquid degassed by degassing chamber one can enter degassing chamber two, so that the liquid entering the tank body is continuously degassed in degassing chamber one and degassing chamber two, and at the same time, the liquid forms a thin layer on partition plate one, which is beneficial to the degassing treatment of the liquid.

[0009] Preferably, a puncturing device is provided in the degassing chamber 1, and the puncturing device comprises a pushing mechanism for pushing the liquid to be lifted and a puncturing tube for puncturing bubbles in the liquid, and the puncturing tube is installed on the partition plate 1.

[0010] Beneficial effect: Through the setting of the pushing mechanism, the pushing mechanism can push the liquid to rise, and the liquid will fall back after rising. During the falling process of the liquid, the bubbles in the liquid can contact the puncture tube, and the bubbles can be punctured through the puncture tube, and the gas can be discharged through the vacuum pump, which can improve the overall degassing efficiency of the liquid.

[0011] Preferably, the pushing mechanism comprises a lifting plate for pushing the liquid to be lifted and a lifting assembly for driving the lifting plate to be lifted and lowered, and the lifting plate is slidably fitted in the tank body along the height direction of the tank body.

[0012] Preferably, the lifting assembly includes a bidirectional screw rod that cooperates with the lifting plate thread and a driving member for driving the bidirectional screw rod to rotate.

[0013] Preferably, a plurality of clearance holes are provided on the lifting plate.

[0014] Preferably, a partition plate 2 is provided in the degassing chamber 2, and an exhaust device is provided on the partition plate 2. The exhaust device includes an outer ring provided in the degassing chamber 2, an inner plate slidably fitted with the outer ring along the height direction of the tank body, and an adjusting mechanism for driving the inner plate to slide. When the inner plate is located at the lowest position of the outer ring, the upper surface of the inner plate and the top surface of the outer ring form a storage cavity for storing liquid.

[0015] Beneficial effect: Through the setting of the exhaust device and the partition plate 2, the degassing chamber 2 can be divided into multiple chambers for degassing operations, and the storage chamber can store liquid. The inner disk is driven to rise through the adjustment mechanism, which drives the liquid to rise and diffuses in a dispersed state. The liquid is more dispersed, and the liquid is degassed through the vacuum pump 2 to further improve the degassing efficiency of the liquid.

[0016] Preferably, the adjustment mechanism includes a lifting sleeve threadedly engaged with the bidirectional screw and an adjustment component for driving the inner disk to slide and adjust, and the lifting sleeve is connected to the inner disk.

[0017] Beneficial effect: When the bidirectional screw rotates, it can drive the lifting sleeve to move up and down, thereby driving the lifting and lowering adjustment of the inner disk and the outer ring, and through the adjustment component, the distance between the inner disk and the outer ring can be adjusted mutually.

[0018] Preferably, the adjustment assembly includes an adjustment rod and an elastic member for pushing the outer ring downward, the adjustment rod is installed on a partition plate, one end of the elastic member is connected to the lower surface of the inner disk, and the other end is connected to the outer ring.

[0019] Preferably, air guide grooves are provided at the edges of partition plate 1 and partition plate 2, an air guide tube is installed on partition plate 2, a hole connected to degassing chamber 2 is provided on the air guide tube, one side of the air guide groove is connected to vacuum pump 2, and the other side is connected to the air guide tube.

[0020] Beneficial effect: When the inner disk slides relatively in the outer ring, the hole of the air guide tube is connected with the second degassing chamber. At this time, the gas of the liquid in the second degassing chamber passes through the hole of the air guide tube, the air guide tube, and the air guide groove in sequence, and is discharged through the second vacuum pump, thereby achieving efficient degassing of the liquid.

[0021] Preferably, the driving assembly includes a rotating shaft for driving the impeller to rotate and a driving member 2 for driving the rotating shaft to rotate.

[0022] Beneficial effect: through the driving member 2, the rotating shaft can be driven to rotate, and then the impeller can be driven to rotate. When the impeller rotates, the liquid can be driven to rotate. After passing through the circulation groove, the liquid can enter the degassing chamber 2, and then the liquid can enter the degassing chamber 2 through the degassing chamber 1.

[0023] The beneficial effects of the present invention are:

[0024] 1. In the present invention, by setting the partition plate one, the tank body can be divided into a degassing chamber one and a degassing chamber two, the vacuum pump one evacuates the degassing chamber one, and the vacuum pump two evacuates the degassing chamber two, and by setting the connecting mechanism, the degassing chamber one and the degassing chamber two can be separated, and the driving component drives the impeller to rotate, so that the liquid degassed by the degassing chamber one can enter the degassing chamber two, so that the liquid entering the tank body is continuously degassed in the degassing chamber one and the degassing chamber two, and at the same time, the liquid forms a thin layer on the partition plate one, which is beneficial to the degassing treatment of the liquid, and by setting the exhaust device and the partition plate two, the degassing chamber two can be divided into a plurality of chambers for degassing operation, the storage chamber can store liquid, and the inner disk is driven to rise by the regulating mechanism, which drives the liquid to rise, and the liquid is dispersed and diffused, and the liquid is more dispersed, and the liquid is degassed by the vacuum pump two, so as to further improve the degassing efficiency of the liquid;

[0025] 2. In the present invention, through the setting of the puncturing device, the pushing mechanism can push the liquid to rise, and the liquid will fall back after rising. During the falling process of the liquid, the bubbles in the liquid can contact the puncturing tube and puncture the bubbles through the puncturing tube, and the gas is discharged through the vacuum pump, which can improve the overall degassing efficiency of the liquid and solve the problem that the bubbles in the sewage are not easy to be discharged when there is a lot of sewage and the sewage is deep. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 It is a partial cross-sectional view of the present invention.

[0028] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0029] Figure 4 It is a partial cross-sectional view showing the connection relationship between the inner disk and the outer ring.

[0030] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle.

[0031] Figure 6 It is a partial cross-sectional view showing the connection relationship between the outer ring and the inner disc.

[0032] Reference numerals:

[0033] 1. Tank body; 11. Liquid inlet; 12. Liquid discharge port; 13. Exhaust pipe one; 14. Exhaust pipe two; 2. Partition plate one; 21. Circulation slot; 3. Degassing chamber one; 4. Degassing chamber two; 5. Connecting mechanism; 51. Impeller; 52. Driving assembly; 521. Rotating shaft; 6. Puncture device; 61. Pushing mechanism; 62. Puncture tube; 63. Lifting plate; 631. Clearance hole; 64. Lifting assembly; 641. Bidirectional screw; 642. Driving member one; 7. Partition plate two; 8. Exhaust device; 81. Outer ring; 82. Inner disk; 83. Adjusting mechanism; 84. Lifting sleeve; 85. Adjusting assembly; 851. Adjusting rod; 852. Elastic member; 9. Storage chamber; 10. Air guide tube. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0035] Reference Figure 1-Figure 6 The wastewater treatment device for recycling waste plastics of the present invention comprises a tank body 1, a liquid inlet 11, a liquid discharge port 12 and a vacuum pump 1 (not shown in the figure), wherein the liquid inlet 11 is located at the top of the tank body 1, the liquid discharge port 12 is located at the bottom of the tank body 1, and an exhaust pipe 13 is provided at the top of the tank body 1, one end of the exhaust pipe 13 is connected to the inside of the tank body 1, and the other end is connected to the vacuum pump 1. When the liquid needs to be degassed, the liquid enters the tank body 1 through the liquid inlet 11, and the vacuum pump 1 works to degas the liquid in the tank body 1 through the vacuum force, and the degassed liquid is discharged through the liquid discharge port 12.

[0036] Reference Figure 2 and Figure 3 A partition plate 2 is fixedly arranged in the tank body 1, and two partition plates 2 are arranged. A degassing chamber 3 is formed between the top of the tank body 1 and the partition plate 2 below. A vacuum pump is used to evacuate the degassing chamber 3. A degassing chamber 4 is formed between the bottom of the tank body 1 and the partition plate 2. After the liquid enters the tank body 1, it first passes through the degassing chamber 3 to degas the liquid, and then enters the degassing chamber 4 for degassing again.

[0037] Reference Figure 2 and Figure 3 A flow groove 21 for connecting the degassing chamber 1 3 and the degassing chamber 2 4 is provided on the partition plate 2, and a connecting mechanism 5 is installed in the flow groove 21. The connecting mechanism 5 includes an impeller 51 and a driving assembly 52 for blocking the flow groove 21. The impeller 51 is adapted to the flow groove 21, and the impeller 51 rotates to cooperate with the partition plate 2, and when the impeller 51 does not rotate, the flow groove 21 is always blocked.

[0038] Among them, refer to Figure 2 and Figure 3 The driving assembly 52 drives the impeller 51 to rotate. The driving assembly 52 includes a rotating shaft 521 for driving the impeller 51 to rotate and a driving member 2 (not shown in the figure) for driving the rotating shaft 521 to rotate. The rotating shaft 521 is rotatably matched with the partition plate 1 2. The rotating shaft 521 is fixedly connected to the impeller 51. The driving member 2 can directly use a motor. The housing of the driving member 2 is fixedly installed on the tank body 1, and the output shaft of the driving member 2 is fixedly connected to the rotating shaft 521. Starting the driving member 2 can drive the rotating shaft 521 to rotate, drive the impeller 51 to rotate, and the impeller 51 pushes the liquid in the degassing chamber 1 3 to flow into the degassing chamber 2 4.

[0039] Reference Figure 1-Figure 3 The degassing chamber 3 is provided with a puncturing device 6, which is used to puncture bubbles in the liquid in the degassing chamber 3. The puncturing device 6 includes a pushing mechanism 61 for pushing the liquid up and a puncturing tube 62 for puncturing bubbles in the liquid. The puncturing tube 62 is fixedly mounted on the partition plate 2, and the top of the puncturing tube 62 can be directly set as a tip. The pushing mechanism 61 includes a lifting plate 63 for pushing the liquid up and a lifting assembly 64 for driving the lifting plate 63 to lift and lower. The lifting plate 63 is evenly provided with a plurality of clearance holes 631. The lifting plate 63 is slidably matched with the tank body 1 along the height direction of the tank body 1, and the puncturing tube 62 is slidably matched with the lifting plate 63.

[0040] Among them, refer to Figure 1-Figure 3 The lifting assembly 64 includes a bidirectional screw 641 threadedly matched with the lifting plate 63 and a driving member 642 for driving the bidirectional screw 641 to rotate. The driving member 642 can directly adopt an electric motor. A gearbox is connected to the output shaft of the driving member 642. The bidirectional screw 641 rotates and cooperates with the tank body 1, and the driving member 642 can drive the bidirectional screw 641 to rotate through the gearbox.

[0041] Reference Figure 2 and Figure 4 The tank body 1 is provided with a vacuum pump 2 (not shown in the figure) for evacuating the degassing chamber 2 4, and the tank body 1 is provided with an exhaust pipe 2 14, one end of which is connected to the vacuum pump 2, and the other end is located inside the tank body 1. A partition plate 2 7 is fixedly provided in the degassing chamber 2 4, and a plurality of partition plates 2 7 are provided along the height direction of the tank body 1. An exhaust device 8 is provided on the partition plate 2 7, and the exhaust device 8 is used to degas the liquid entering the degassing chamber 2 4. The partition plate 2 7 is also provided with a flow slot 21 and a connecting mechanism 5.

[0042] Reference Figure 4-Figure 6The exhaust device 8 includes an outer ring 81 disposed in the degassing chamber 24, an inner plate 82 slidingly matched with the outer ring 81 along the height direction of the tank body 1, and an adjusting mechanism 83 for driving the inner plate 82 to slide. In the initial state, the inner plate 82 is located at the lowest position of the outer ring 81, and the upper surface of the inner plate 82 and the top surface of the outer ring 81 form a storage chamber 9 for storing liquid (its state is as shown in FIG. Figure 6 as shown).

[0043] Among them, refer to Figure 4-Figure 6 The adjustment mechanism 83 includes a lifting sleeve 84 threadedly engaged with the bidirectional screw 641 and an adjustment assembly 85 for driving the inner disk 82 to slide and adjust. The lifting sleeve 84 is fixedly connected to the inner disk 82, and the lifting sleeve 84 only slides in the height direction of the tank body 1. The adjustment assembly 85 includes an adjustment rod 851 and an elastic member 852 for pushing the outer ring 81 downward. The adjustment rod 851 is fixedly installed on the partition plate 2. A plurality of adjustment rods 851 are arranged on the partition plate 2, and the adjustment rods 851 and the outer ring 81 are adapted in the height direction of the tank body 1. The elastic member 852 can directly adopt a spring, and one end of the elastic member 852 is fixedly connected to the lower surface of the inner disk 82, and the other end is fixedly connected to the outer ring 81.

[0044] Reference Figure 4-Figure 6 , air guide grooves are provided at the edges of the partition plate 1 2 and the partition plate 2 7, an air guide tube 10 is fixedly installed between the partition plate 2 7 and the partition plate 1 2, and multiple air guide tubes 10 are provided. The lifting sleeve 84 slides with the air guide tube 10, and a hole connected to the degassing chamber 2 4 is provided on the air guide tube 10. The air guide groove is connected to the exhaust pipe 2 14, one side of the air guide groove is connected to the vacuum pump 2 through the exhaust pipe 2 14, and the other side is connected to the air guide tube 10; in the initial state, the inner disk 82 is located at the lowest position of the outer ring 81, and at this time, the hole of the air guide tube 10 is blocked by the lifting sleeve 84 and the inner disk 82.

[0045] The implementation principle of the wastewater treatment device for recycling waste plastics of the present invention is as follows: when liquid needs to be degassed, the liquid enters the tank body 1 through the liquid inlet 11, and the vacuum pump 1 works. At this time, the driving member 1 642 is started, and the bidirectional screw 641 is driven to rotate through the gearbox. When the bidirectional screw 641 rotates, the lifting plate 63 is driven to rise, and the lifting plate 63 drives the liquid to rise. Then, the bidirectional screw 641 rotates in the opposite direction, driving the lifting plate 63 to fall, and the liquid will fall back. At this time, the bubbles in the liquid contact with the puncture tube 62, and the bubbles are punctured by the puncture tube 62, and the degassing treatment is performed by the vacuum pump 1;

[0046] At the same time, the driving member 2 is started to drive the rotating shaft 521 to rotate, and the impeller 51 is driven to rotate. When the impeller 51 rotates, the liquid in the degassing chamber 1 3 can be pushed to flow into the degassing chamber 2 4, and the liquid degassed by the degassing chamber 1 3 is degassed again;

[0047] When the bidirectional screw 641 rotates, it can drive the lifting sleeve 84 to rise. The lifting sleeve 84 drives the inner disk 82 and the outer ring 81 to rise at the same time, and pushes the liquid in the storage chamber 9 to rise. When the upper surface of the outer ring 81 abuts against the bottom end of the adjusting rod 851, the outer ring 81 no longer rises. At this time, the inner disk 82 continues to rise and stretches the elastic member 852. The inner disk 82 drives the liquid in the storage chamber 9 to rise, so that the liquid diffuses in a dispersed state. The vacuum pump 2 works, and the gas in the liquid is discharged through the hole of the air guide pipe 10, the air guide pipe 10, the air guide groove and the exhaust pipe 2 14 in turn. Finally, the liquid after degassing again is discharged through the drain port 12, completing the degassing operation of the liquid.

[0048] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A wastewater treatment device for recycling waste plastics, comprising a tank, a liquid inlet, a liquid outlet and a vacuum pump, characterized in that: A partition plate 1 is provided in the tank body, a degassing chamber 1 is formed between the top of the tank body and the partition plate 1, the vacuum pump 1 is used to evacuate the degassing chamber 1, a degassing chamber 2 is formed between the bottom of the tank body and the partition plate 1, the tank body is provided with a vacuum pump 2 for evacuating the degassing chamber 2, a flow groove for connecting the degassing chamber 1 and the degassing chamber 2 is opened on the partition plate 1, a connecting mechanism is installed in the flow groove, the connecting mechanism includes an impeller and a driving assembly for blocking the flow groove, the impeller rotates to cooperate with the partition plate 1, the driving assembly drives the impeller to rotate, and pushes the liquid in the degassing chamber 1 to flow into the degassing chamber 2; The degassing chamber 1 is provided with a puncturing device, which includes a pushing mechanism for pushing the liquid up and a puncturing tube for puncturing bubbles in the liquid, and the puncturing tube is installed on the partition plate 1; The pushing mechanism includes a lifting plate for pushing the liquid to be lifted and a lifting assembly for driving the lifting plate to be lifted and lowered. The lifting plate is slidably matched with the tank body along the height direction of the tank body, and a plurality of clearance holes are provided on the lifting plate. A partition plate 2 is provided in the degassing chamber 2, and an exhaust device is provided on the partition plate 2. The exhaust device includes an outer ring provided in the degassing chamber 2, an inner plate slidingly matched with the outer ring along the height direction of the tank body, and an adjusting mechanism for driving the inner plate to slide. When the inner plate is located at the lowest position of the outer ring, the upper surface of the inner plate and the top surface of the outer ring form a storage chamber for storing liquid.

2. The wastewater treatment device for recycling waste plastics according to claim 1, characterized in that: The lifting assembly includes a bidirectional screw matched with the lifting plate thread and a driving member for driving the bidirectional screw to rotate.

3. The wastewater treatment device for recycling waste plastics according to claim 2, characterized in that: The adjustment mechanism comprises a lifting sleeve threadedly matched on the bidirectional screw and an adjustment component used for driving the inner disk to slide and adjust, and the lifting sleeve is connected to the inner disk.

4. The wastewater treatment device for recycling waste plastics according to claim 3, characterized in that: The adjustment assembly includes an adjustment rod and an elastic member for pushing the outer ring downward. The adjustment rod is installed on a partition plate. One end of the elastic member is connected to the lower surface of the inner disk, and the other end is connected to the outer ring.

5. The wastewater treatment device for recycling waste plastics according to claim 2, characterized in that: Air guide grooves are provided at the edges of the partition plate 1 and the partition plate 2, an air guide pipe is installed on the partition plate 2, a hole connected to the degassing chamber 2 is provided on the air guide pipe, one side of the air guide groove is connected to the vacuum pump 2, and the other side is connected to the air guide pipe.

6. The wastewater treatment device for recycling waste plastics according to claim 1, characterized in that: The driving assembly includes a rotating shaft for driving the impeller to rotate and a driving member 2 for driving the rotating shaft to rotate.

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