An intelligent wastewater treatment device for PET plastic foam processing

Abstract

The present invention relates to the field of wastewater treatment technology, and discloses an intelligent wastewater treatment device for PET plastic foam processing, comprising a horizontally arranged transfer tank and a flocculation tank, a filtration tank, and a temporary storage tank arranged around the periphery of the transfer tank. The transfer tank is connected to the flocculation tank, the filtration tank, and the temporary storage tank via a connecting port arranged along the length of the transfer tank. The transfer tank is provided with a switching assembly, the switching assembly comprising a switching shaft rotatably arranged in the middle of the transfer tank, and three partitions are arranged around the sidewall of the switching shaft. The intelligent wastewater treatment device for PET plastic foam processing, through the flocculation tank, the filtration tank, the temporary storage tank, and the transfer tank, forms a horizontally rotatable overall structure. In conjunction with the switching assembly, the flocculation, filtration, adsorption, and other treatment processes are integrated into a compact horizontally arranged device, replacing traditional pumping with gravity flow, significantly reducing energy consumption and floor space. In addition, each treatment tank can be independently disassembled and maintained.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, in particular to an intelligent wastewater treatment device for PET plastic foam processing. Background Art

[0002] The wastewater generated during the processing of PET plastic foam contains pollutants such as foaming agents, plasticizers, unpolymerized monomers and microplastic particles. If discharged directly, it can easily lead to eutrophication of water bodies, accumulation of biological toxicity and soil pollution, seriously threatening the ecological environment and human health. Efficient treatment of such wastewater is not only a compliance requirement, but also a key link in achieving water resource recycling.

[0003] Currently, mainstream wastewater treatment equipment is divided into two categories. One is a multi-device series system that relies on pumping to achieve water flow sequence. It has the problems of large footprint, high energy consumption and easy pipe clogging. The other is an integrated high-tower equipment. Although it reduces the footprint through a vertical layered structure, its height is too high, resulting in difficult installation and maintenance. The gravity-driven unidirectional downward flow mode is prone to uneven flow rate and frequent blockages due to filter material resistance. At the same time, the fixed layered design is difficult to flexibly maintain locally and independently replace filter materials, and has poor adaptability.

[0004] Therefore, it is necessary to propose an intelligent wastewater treatment device for PET plastic foam processing to solve the above problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art. The present invention proposes an intelligent wastewater treatment device for PET plastic foam processing, which solves the problems of the prior art in the background technology such as large footprint, high energy consumption and inconvenient maintenance.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A PET plastic foam processing intelligent wastewater treatment device includes a horizontally arranged transfer tank and a flocculation tank, a filter tank, and a temporary storage tank arranged around the transfer tank. The transfer tank is connected to the flocculation tank, the filter tank, and the temporary storage tank through a communication port arranged along the length of the transfer tank. The transfer tank, the flocculation tank, the filter tank, and the temporary storage tank form a rotatable integral structure.

[0008] The transfer tank is provided with a switching assembly, which includes a switching shaft rotatably arranged in the middle of the transfer tank, and a third driving source for driving the switching shaft to rotate is provided at one end of the transfer tank, and three partition plates are provided around the side wall of the switching shaft, and the ends of the three partition plates away from the switching shaft are respectively provided with a sealing plate, a filter plate and an activated carbon storage box that fit with the inner wall of the transfer tank, the sealing plate is used to block the corresponding communication port of the flocculation tank, and is configured as follows: when the filter plate is matched with the corresponding communication port of the temporary storage tank, the flocculation tank, the end of the transfer tank away from the filter tank and the temporary storage tank are in a connected state; when the activated carbon storage box is matched with the corresponding communication port of the temporary tank, the filter tank, the end of the transfer tank away from the flocculation tank and the temporary storage tank are connected;

[0009] A water inlet is provided on one side of the flocculation tank, and a drain outlet is provided on one side of the filter tank, and the configuration is: when the temporary storage tank is located above, the drain outlet is set downward, and a storage box for storing filter material is provided at one end of the inner side of the filter tank near the drain outlet.

[0010] Preferably, the integral structure composed of the transfer tank, flocculation tank, filtration tank and temporary storage tank is driven to rotate by a driving mechanism, and the driving mechanism includes a gear ring fixedly arranged at one end of the outer side of the flocculation tank, filtration tank and temporary storage tank, and the lower end of the telescopic gear ring is engaged with a second driving gear, and a second driving source for driving the second driving gear to rotate is provided on one side of the second driving gear.

[0011] Preferably, a support assembly for supporting the transfer tank, flocculation tank and filter tank is provided below the transfer tank, flocculation tank and filter tank, the support assembly includes a base arranged on a horizontal plane, the second driving source is installed at one end of the top of the base, a support roller is rotatably provided on the top of the base, and an annular track is fixedly provided on the outside of the flocculation tank, filter tank and temporary storage tank, and the support roller rolls in cooperation with the annular track.

[0012] Preferably, a stirring shaft is rotatably provided in the middle of the inner side of the flocculation tank, and one end of the stirring shaft extends to the outside of the flocculation tank and is fixed with a stirring gear;

[0013] A bracket is provided at one end of the flocculation tank, the filtration tank and the temporary storage tank. A first driving gear corresponding to the stirring gear is rotatably provided on one side of the bracket, and a first driving source for driving the first driving gear to rotate is provided on the other side of the bracket.

[0014] Preferably, a stirring assembly is provided in the transfer tank, and the stirring assembly includes an inner shaft rotatably arranged on the inner side of the switching shaft, one end of the inner shaft extends to the outside of the transfer tank and is provided with a force plate, and the side wall of the inner shaft away from the force plate is provided with a stirring blade extending to the inner cavity of the transfer tank, and the side wall of the switching shaft is provided with an opening corresponding to the stirring blade, and a torsion spring is provided between the end of the inner shaft and the inner wall of the switching shaft, and a toggle plate corresponding to the force plate is provided on one side of the first driving gear, and is configured as follows: when the filter plate is matched with the connecting port corresponding to the temporary storage tank, the toggle plate and the first driving gear can touch the force plate when rotating.

[0015] Preferably, a roller is rotatably provided at one end of the toggle plate.

[0016] Preferably, the filter material stored in the storage box is diatomaceous earth or zeolite, and a plurality of honeycomb holes are provided on the surface of the storage box.

[0017] Preferably, a waste outlet is provided on one side of the flocculation tank and is arranged along the length direction of the flocculation tank. The waste outlet is configured such that when the temporary storage tank is located at the top, the waste outlet is arranged toward the direction of the flocculation tank.

[0018] Preferably, a flap valve is provided on the waste outlet.

[0019] Preferably, a cleaning interface for introducing a cleaning medium is provided on a side wall at one end of the transfer tank, and the cleaning interface is provided close to the flocculation tank.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This intelligent wastewater treatment device for PET plastic foam processing features a horizontally rotatable structure consisting of a flocculation tank, a filter tank, a temporary storage tank, and a transfer tank. Combined with a switching assembly, it integrates the flocculation, filtration, and adsorption processes into a compact, horizontally arranged device. Gravity flow replaces traditional pumping, significantly reducing energy consumption and floor space. Furthermore, by dynamically switching the sealing plates, filter plates, and activated carbon storage tank in stages, the gravitational potential energy of the wastewater is concentratedly released after each treatment step, creating a short, high-velocity flow to flush the filter plates and activated carbon storage tank. This reduces clogging and avoids the progressive clogging caused by filter material resistance in traditional continuous gravity flow. Furthermore, the phased isolation treatment allows the wastewater to fully reside in the tanks to complete the reaction, balancing treatment efficiency and long-term filter material stability. This device is particularly suitable for PET foam wastewater containing high levels of suspended solids. Furthermore, each treatment tank can be independently disassembled and maintained, making it particularly suitable for small and medium-sized PET plastic processing enterprises. This low-cost, low-maintenance, intensive design achieves standard wastewater discharge and reuse, effectively addressing the drawbacks of existing equipment, such as high energy consumption, clogging, maintenance difficulties, and poor adaptability.

[0022] The intelligent wastewater treatment device for PET plastic foam processing can stir the interior of the flocculation tank during flocculation treatment by means of a first driving source, a first driving gear, a stirring gear, and a stirring shaft, thereby facilitating a rapid flocculation reaction. In addition, the first driving source, the first driving gear, and the stirring assembly can stir one end of the inner cavity of the transfer tank during the filtration stage, thereby preventing clogging of the filter plate and affecting the flow of water, thereby ensuring rapid flow of water. The first driving source and the first driving gear realize drive at different stages according to the rotation of the switching shaft or multiple tank bodies, and have a compact structure and are easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The disclosure of the present invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:

[0024] Figure 1 Schematically shows the structural diagram of the present invention;

[0025] Figure 2 Schematically shows a three-dimensional structural diagram of the present invention;

[0026] Figure 3 The present invention is schematically shown Figure 2 A structural diagram from another perspective based on the above;

[0027] Figure 4 The schematic diagram shows the structure of the flocculation tank, filtration tank, temporary storage tank, transfer tank, and the first driving gear and the second driving gear in the state of cooperation;

[0028] Figure 5 The cross-sectional structure diagram of the flocculation tank, filtration tank, temporary storage tank, and transfer tank at one end of the present invention is schematically shown;

[0029] Figure 6 The schematic diagram shows the structure of the sealing plate of the present invention in the state of sealing the bottom of the flocculation tank;

[0030] Figure 7 A schematic diagram of the structure of the filter plate of the present invention in a state of being matched with the connecting port on the temporary storage tank is shown;

[0031] Figure 8 Schematically shows the structure of the activated carbon storage box of the present invention in a state where the connecting port on the temporary storage tank is matched;

[0032] Figure 9 The schematic diagram shows the structure of the temporary storage tank of the present invention when it is rotated to the upper state;

[0033] Figure 10The schematic diagram shows the overall structure of the first driving gear and the toggle plate of the present invention;

[0034] Figure 11 The schematic diagram shows the structure of the partition plate, switching shaft and inner shaft of the present invention in the disassembled state.

[0035] Numbers in the figure: 1. base; 2. flocculation tank; 3. filter tank; 4. ring gear; 5. bracket; 6. first driving source; 7. stirring gear; 8. first driving gear; 9. second driving gear; 10. second driving source; 11. ring track; 12. supporting roller; 13. water inlet; 14. reagent addition port; 15. drain outlet; 16. temporary storage tank; 17. transfer tank; 18. third driving source; 19. waste outlet; 20. switching shaft; 21. inner shaft; 22. toggle plate; 23. storage box; 24. stirring shaft; 25. connecting port; 26. activated carbon storage box; 27. partition plate; 28. sealing plate; 29. filter plate; 30. stirring blade; 31. roller; 32. force plate; 33. torsion spring; 34. opening; 35. cleaning interface. DETAILED DESCRIPTION

[0036] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention and should not be regarded as the entire invention or as a limitation or restriction of the technical solution of the present invention.

[0037] like Figures 1-9As shown, a PET plastic foam processing intelligent wastewater treatment device includes a horizontally arranged transfer tank 17 and a flocculation tank 2, a filter tank 3, and a temporary storage tank 16 arranged around the periphery of the transfer tank 17, and the transfer tank 17 is connected to the flocculation tank 2, the filter tank 3, and the temporary storage tank 16 through a connecting port 25 arranged along the length direction of the transfer tank 17. The transfer tank 17, the flocculation tank 2, the filter tank 3 and the temporary storage tank 16 form a rotatable integral structure. A water inlet 13 and a drug addition port 14 are provided on one side of the flocculation tank 2, and a drain port 15 is provided on one side of the filter tank 3. The drain port 15 is configured as follows: when the temporary storage tank 16 is located above, the drain port 15 is arranged downward, and an end of the inner side of the filter tank 3 near the drain port 15 is provided with a A storage box 23 for storing filter material, the filter material stored in the storage box 23 is preferably diatomaceous earth or zeolite, and a plurality of honeycomb holes are provided on the surface of the storage box 23 to facilitate water flow through, the integral structure composed of the transfer tank 17, the flocculation tank 2, the filter tank 3 and the temporary storage tank 16 is driven to rotate by a driving mechanism, the driving mechanism includes a gear ring 4 fixedly arranged at one end of the outer side of the flocculation tank 2, the filter tank 3 and the temporary storage tank 16, the lower end of the telescopic gear ring 4 is engaged with a second driving gear 9, and a second driving source 10 for driving the second driving gear 9 to rotate is provided on one side of the second driving gear 9, and the second driving source 10 is preferably a reduction motor. In order to achieve stable support, a gear for rotating the transfer tank 17, the flocculation tank 2 and the filter tank 3 is provided below the transfer tank 17, the flocculation tank 2 and the filter tank 3. , and the filter tank 3 are supported by a support assembly, the support assembly includes a base 1 set on a horizontal plane, a second driving source 10 is installed at one end of the top of the base 1, and a supporting roller 12 is rotatably provided on the top of the base 1. There are at least two groups of supporting rollers 12, and the number of each group is multiple. The two groups of supporting rollers 12 are respectively located at both ends of the base 1, and at least one pair of annular tracks 11 are fixedly provided on the outside of the flocculation tank 2, the filter tank 3, and the temporary storage tank 16. The supporting rollers 12 roll with the annular tracks 11. A switching assembly is provided on the transfer tank 17. As a preferred embodiment, the switching assembly includes a switching shaft 20 rotatably set in the middle of the transfer tank 17, and one end of the transfer tank 17 is provided with a third driving source 18 for driving the switching shaft 20 to rotate. The third driving The power source 18 is preferably a reduction motor. Three partition plates 27 are arranged around the side wall of the switching shaft 20. The three partition plates 27 are respectively provided with a sealing plate 28, a filter plate 29 and an activated carbon storage box 26 that fit with the inner wall of the transfer tank 17 at one end away from the switching shaft 20. The activated carbon storage box 26 is used to store activated carbon, and the surface of the activated carbon storage box 26 is provided with small holes to facilitate water flow through. The sealing plate 28 is used to block the communication port 25 corresponding to the flocculation tank 2, and is configured as follows: when the filter plate 29 is matched with the communication port 25 corresponding to the temporary storage tank 16, the flocculation tank 2, the end of the transfer tank 17 away from the filter tank 3 and the temporary storage tank 16 are in a connected state. When the activated carbon storage box 26 is matched with the communication port 25 corresponding to the temporary storage tank 16,The filter tank 3, the end of the transfer tank 17 away from the flocculation tank 2 and the temporary storage tank 16 are connected;

[0038] It should be noted that in order to ensure the sealing performance of the sealing plate 28 to the corresponding communication port 25 of the flocculation tank 2, a sealing ring is provided on the edge of the sealing plate 28 facing the inner wall of the transfer tank 17. The sealing ring is U-shaped or lip-shaped, and the sealing ring slightly protrudes from the surface of the sealing plate 28. At the same time, a layer of soft sealing material is covered on the periphery of the corresponding communication port 25 of the flocculation tank 2. The soft sealing material slightly protrudes from the inner wall of the transfer tank 17, and the edge of the soft sealing material smoothly transitions to the inner wall of the transfer tank 17. When the sealing plate 28 is rotated to the corresponding communication port 25 of the flocculation tank 2, the sealing ring can It matches the soft sealing material, so that the two are in close contact to achieve sealing, and the sealing ring and the soft sealing material are made of PTFE or rubber-based composite materials with a low friction coefficient. Therefore, the rotational friction torque generated by rotation is small, and the sealing ring is fully compressed only when it is in the blocking position to achieve good sealing. During the rotation process, the sealing ring is in a slight contact state with the inner wall of the transfer tank 17, and the friction resistance is small. It can also achieve a sealing effect, which can avoid affecting the driving rotation of the switching shaft 20. Since it is a conventional sealing means, the sealing ring and the soft sealing material are shown in the figure and no more details are given.

[0039] like Figure 1-Figure 2 、 Figure 4-Figure 5 As shown, in order to accelerate the reaction, a stirring shaft 24 is rotatably provided in the middle of the inner side of the flocculation tank 2. One end of the stirring shaft 24 extends to the outside of the flocculation tank 2 and is fixed with a stirring gear 7. In order to realize the driving rotation of the stirring shaft 24, a bracket 5 is provided at one end of the flocculation tank 2, the filter tank 3, and the temporary storage tank 16. The bracket 5 is fixed on the base 1. A first driving gear 8 corresponding to the stirring gear 7 is rotatably provided on one side of the bracket 5, and a first driving source 6 for driving the first driving gear 8 to rotate is provided on the other side of the bracket 5.

[0040] In addition, if Figure 4-11As shown, in order to avoid clogging during the filtration stage of the filter plate 29, a stirring assembly is provided in the transfer tank 17, and the stirring assembly includes an inner shaft 21 rotatably provided on the inner side of the switching shaft 20, one end of the inner shaft 21 extends to the outside of the transfer tank 17 and is provided with a force plate 32, and a side wall of the inner shaft 21 away from the force plate 32 is provided with a stirring blade 30 extending into the inner cavity of the transfer tank 17, and the side wall of the switching shaft 20 is provided with an opening 34 corresponding to the stirring blade 30, and the end of the inner shaft 21 is connected to the inner wall of the switching shaft 20. A torsion spring 33 is provided between the switching shaft 20, one end of the torsion spring 33 is fixed to the inner wall of the switching shaft 20, and the other end is fixed to the side wall of the inner shaft 21, so that the inner shaft 21 can be twisted when it rotates. A toggle plate 22 corresponding to the force plate 32 is provided on one side of the first driving gear 8, and is configured as follows: when the filter plate 29 is matched with the communication port 25 corresponding to the temporary storage tank 16, the toggle plate 22 and the first driving gear 8 can contact the force plate 32 when they rotate. In order to reduce friction, a roller 31 is rotatably provided at one end of the toggle plate 22.

[0041] For subsequent slag discharge, a waste outlet 19 is provided on one side of the flocculation tank 2 along the length direction of the flocculation tank 2. The waste outlet 19 is configured as follows: when the temporary storage tank 16 is located above, the waste outlet 19 is facing upward, and a flap valve is provided on the waste outlet 19. A cleaning interface 35 for introducing a cleaning medium is provided on the side wall of one end of the transfer tank 17, and the cleaning interface 35 is provided close to the flocculation tank 2.

[0042] When in use, the flocculation tank 2 is located at the top, and the sealing plate 28 is in a blocked state for the communication port 25 at the bottom of the flocculation tank 2. The wastewater to be treated is introduced into the inner cavity of the flocculation tank 2 through the water inlet 13, and the agent is added through the agent feeding port 14. At this time, the stirring gear 7 corresponds to the first driving gear 8, and the force plate 32 does not correspond to the toggle plate 22. The first driving source 6 is controlled to drive the first driving gear 8 to rotate, and the first driving gear 8 drives the stirring shaft 24 to rotate through the stirring gear 7. The stirring shaft 24 stirs and accelerates the reaction. After the reaction is completed, the third driving source 18 is controlled to drive the switching shaft 20 to rotate a certain amplitude, and then the switching shaft 20 drives the sealing plate 28, the filter plate 29, and the activated carbon storage The box 26 rotates as a whole, and the sealing plate 28 is detached from the communication port 25 at the bottom of the flocculation tank 2. At the same time, the filter plate 29 blocks the communication port 25 on the temporary storage tank 16. At this time, the flocculation tank 2, the temporary storage tank 16 and the transfer tank 17 at the end away from the filter tank 3 are in a connected state, and then the wastewater enters the transfer tank 17 at the end away from the filter tank 3 and is filtered by the filter plate 29, and then enters the temporary storage tank 16. Due to the rotation of the switching shaft 20, the inner shaft 21 is driven to rotate synchronously, and then the force plate 32 corresponds to the toggle plate 22 at this time. When the first driving gear 8 rotates, it will continuously push the force plate 32 through the toggle plate 22, and the force plate 32 drives the inner shaft 21 to rotate, and the torsion spring 33 twists, and the toggle plate 22 and the force plate 32 are in a connected state. When the force plate 32 is separated, the torsion spring 33 is reset, and then the inner shaft 21 drives the stirring blade 30 to stir back and forth on the inner side of the transfer tank 17 away from the end of the filter tank 3, avoiding the clogging of the filter plate 29 and affecting the rapid passage of water. After the wastewater completely enters the temporary storage tank 16, the first driving gear 8 stops, and the toggle plate 22 stays in a position away from the force plate 32, and then continues to control the third driving source 18 to drive the switching shaft 20 to rotate a certain amplitude, so that the activated carbon storage box 26 is consistent with the connecting port 25 on the temporary storage tank 16. At this time, the filter tank 3, the end of the transfer tank 17 away from the flocculation tank 2 and the temporary storage tank 16 are connected, and then the second driving gear 9, the flocculation tank 2, the filter tank 3, the second driving source 10 are controlled. The temporary storage tank 16 and the transfer tank 17 rotate as a whole, and the annular track 11 cooperates with the supporting roller 12 to support and guide, so that the temporary storage tank 16 rotates to the top, and then the wastewater enters the filter tank 3 under gravity, and is further purified and filtered through the filter material in the storage box 23 in the filter tank 3, and then discharged from the drain port 15. During this period, the external cleaning medium can be applied to the cleaning interface 35, and the cleaning medium is introduced into the inner side of the transfer tank 17, and the cleaning interface 35 just corresponds to the connecting port 25 at the flocculation tank 2. The cleaning medium flushes the impurities filtered by the filter plate 29, enters the flocculation tank 2 through the connecting port 25 on the flocculation tank 2, and flushes the inner wall of the flocculation tank 2. The flap valve on the waste outlet 19 is opened to discharge the cleaning wastewater.

[0043] It should be noted that detachable heads or maintenance ports (not shown in the figure) can be provided at the ends of the flocculation tank 2, the filter tank 3, the temporary storage tank 16 and the transfer tank 17 to facilitate internal maintenance and replacement of filter materials. Since these are conventional technical means, they will not be described in detail here.

[0044] The technical scope of the present invention is not limited to the contents of the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A PET plastic foam processing intelligent wastewater treatment device, characterized by: The transfer tank comprises a horizontally arranged transfer tank and a flocculation tank, a filter tank, and a temporary storage tank arranged around the transfer tank. The transfer tank is connected to the flocculation tank, the filter tank, and the temporary storage tank via a communication port arranged along the length of the transfer tank. The transfer tank, the flocculation tank, the filter tank, and the temporary storage tank form a rotatable integral structure. The transfer tank is provided with a switching assembly, which includes a switching shaft rotatably arranged in the middle of the transfer tank, and a third driving source for driving the switching shaft to rotate is provided at one end of the transfer tank, and three partition plates are provided around the side wall of the switching shaft, and the ends of the three partition plates away from the switching shaft are respectively provided with a sealing plate, a filter plate and an activated carbon storage box that fit with the inner wall of the transfer tank, the sealing plate is used to block the corresponding communication port of the flocculation tank, and is configured as follows: when the filter plate is matched with the corresponding communication port of the temporary storage tank, the flocculation tank, the end of the transfer tank away from the filter tank and the temporary storage tank are in a connected state; when the activated carbon storage box is matched with the corresponding communication port of the temporary tank, the filter tank, the end of the transfer tank away from the flocculation tank and the temporary storage tank are connected; A water inlet is provided on one side of the flocculation tank, and a drain outlet is provided on one side of the filter tank, and the configuration is: when the temporary storage tank is located above, the drain outlet is set downward, and a storage box for storing filter material is provided at one end of the inner side of the filter tank near the drain outlet.

2. The intelligent wastewater treatment device for PET plastic foam processing according to claim 1, characterized in that: The integral structure composed of the transfer tank, flocculation tank, filtration tank and temporary storage tank is driven to rotate by a driving mechanism, and the driving mechanism includes a gear ring fixedly arranged at one end of the outer side of the flocculation tank, filtration tank and temporary storage tank, and the lower end of the telescopic gear ring is engaged with a second driving gear, and a second driving source for driving the second driving gear to rotate is provided on one side of the second driving gear.

3. The intelligent wastewater treatment device for PET plastic foam processing according to claim 2, characterized in that: A support assembly for supporting the transfer tank, flocculation tank and filter tank is provided below the transfer tank, flocculation tank and filter tank. The support assembly includes a base provided on a horizontal plane. The second driving source is installed at one end of the top of the base. A support roller is rotatably provided on the top of the base. An annular track is fixedly provided on the outside of the flocculation tank, filter tank and temporary storage tank. The support roller rolls in cooperation with the annular track.

4. The intelligent wastewater treatment device for PET plastic foam processing according to claim 1, characterized in that: A stirring shaft is rotatably provided in the middle of the inner side of the flocculation tank, one end of the stirring shaft extends to the outside of the flocculation tank and is fixed with a stirring gear; A bracket is provided at one end of the flocculation tank, the filtration tank and the temporary storage tank. A first driving gear corresponding to the stirring gear is rotatably provided on one side of the bracket, and a first driving source for driving the first driving gear to rotate is provided on the other side of the bracket.

5. The intelligent wastewater treatment device for PET plastic foam processing according to claim 4, characterized in that: The transfer tank is provided with a stirring assembly, which includes an inner shaft rotatably arranged on the inner side of the switching shaft, one end of the inner shaft extends to the outside of the transfer tank and is provided with a force plate, and the side wall of the inner shaft away from the force plate is provided with a stirring blade extending into the inner cavity of the transfer tank, and the side wall of the switching shaft is provided with an opening corresponding to the stirring blade, and a torsion spring is provided between the end of the inner shaft and the inner wall of the switching shaft, and a toggle plate corresponding to the force plate is provided on one side of the first driving gear, and is configured as follows: when the filter plate is matched with the corresponding connecting port of the temporary storage tank, the toggle plate and the first driving gear can contact the force plate when rotating.

6. The intelligent wastewater treatment device for PET plastic foam processing according to claim 5, characterized in that: One end of the toggle plate is rotatably provided with a roller.

7. The intelligent wastewater treatment device for PET plastic foam processing according to claim 1, characterized in that: The filter material stored in the storage box is diatomaceous earth or zeolite, and a plurality of honeycomb holes are provided on the surface of the storage box.

8. The intelligent wastewater treatment device for PET plastic foam processing according to claim 1, characterized in that: A waste outlet is provided on one side of the flocculation tank along the length direction of the flocculation tank, and the waste outlet is configured such that when the temporary storage tank is located at the top, the waste outlet is arranged toward the center.

9. The intelligent wastewater treatment device for PET plastic foam processing according to claim 8, characterized in that: The waste outlet is provided with a flap valve.

10. The intelligent wastewater treatment device for PET plastic foam processing according to any one of claims 1 to 9, characterized in that: A cleaning interface for introducing a cleaning medium is provided on a side wall of one end of the transfer tank, and the cleaning interface is arranged close to the flocculation tank.

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