Electrophoresis wastewater treatment system

Abstract

The utility model discloses an electrophoresis wastewater treatment system which comprises an electrophoresis treatment tank, an ultrafiltration water tank group, a cleaning water tank, an RO (Reverse Osmosis) liquid tank group, an ultrafiltration system and an electrophoresis pure water system, the cleaning liquid conveying unit is respectively connected with the electrophoresis treatment tank and the ultrafiltration main machine, the ultrafiltration main machine is provided with a plurality of ultrafiltration membrane groups, the concentrated liquid conveying unit is respectively connected with the ultrafiltration main machine and the electrophoresis treatment tank, the ultrafiltration liquid conveying unit is respectively connected with the ultrafiltration main machine and the ultrafiltration water tank group, and the electrophoresis pure water system is respectively connected with the ultrafiltration water tank group and the RO liquid tank group. According to the utility model, the ultrafiltration membrane of the ultrafiltration system is used for carrying out membrane separation on the cleaning waste liquid, small molecular substances and macromolecular substances are separated, the macromolecular substances are conveyed into the electrophoresis treatment tank through the concentrated solution conveying unit to be continuously used, and the small molecular substances are treated again through the electrophoresis pure water system, so that energy conservation and consumption reduction are realized, and the environmental protection pressure is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to an electrophoresis wastewater treatment system. Background Art

[0002] Electrophoresis is a phenomenon in which charged particles move toward the opposite electrode under the action of an electric field. Electrophoresis can determine the charge properties of colloidal particles. Particles moving toward the anode are negatively charged, and particles moving toward the cathode are positively charged. Electrophoresis has been widely used in many fields, such as analytical chemistry, pharmacy, biology, food science, etc., especially in the automotive spray painting industry. Electrophoretic paint film has advantages that other spraying methods do not have, such as uniform, smooth, full layer, good hardness, adhesion, and good corrosion resistance. The film-forming material of electrophoretic paint is a water-soluble or water-dispersible ionic polymer, and the coated workpiece is the anode or cathode.

[0003] In the electrophoretic paint electroplating process, a large amount of water is needed to rinse the parts, and a large amount of water is also needed to rinse between different processes. The parts are smooth and free of dirt, and the large amount of wastewater generated in the whole process undoubtedly puts a lot of pressure on the environment. In its treatment, the manpower, material resources and funds paid are considerable, and there is a large amount of paint dripping in the wastewater, causing a lot of waste; and when spraying car paint or other parts, acidic or alkaline paint is needed, and this mixed paint wastewater not only brings considerable pressure on the environment, but also has an irreversible effect on equipment corrosion. When used in automobile painting production, electrophoretic coating has the advantages of uniform paint film and strong adhesion, and is widely used. However, the water consumption of the electrophoretic ultrafiltration system is relatively large, and the wastewater discharge caused is also large, which puts considerable pressure on the environment. Utility Model Content

[0004] In order to solve at least one technical problem in the prior art, the utility model provides an electrophoresis wastewater treatment system.

[0005] In order to achieve the above-mentioned utility model purpose, the technical scheme adopted by the utility model is: an electrophoresis wastewater treatment system, comprising an electrophoresis treatment tank, an ultrafiltration water tank group, a cleaning water tank, an RO liquid tank group, an ultrafiltration system and an electrophoresis pure water system, the ultrafiltration system comprising an ultrafiltration host, a cleaning liquid delivery unit, a concentrated liquid delivery unit and an ultrafiltrate delivery unit, the cleaning liquid delivery unit is respectively connected to the electrophoresis treatment tank and the ultrafiltration host, the cleaning liquid delivery unit is used to deliver the cleaning liquid in the cleaning water tank to the ultrafiltration host, the ultrafiltration host has a plurality of ultrafiltration membrane groups, the concentrated liquid delivery unit is respectively connected to the ultrafiltration host and the electrophoresis treatment tank, and is used to deliver the concentrated liquid filtered by the ultrafiltration membrane group to the electrophoresis treatment tank, the ultrafiltrate delivery unit is respectively connected to the ultrafiltration host and the ultrafiltration water tank group, and is used to deliver the ultrafiltrate filtered by the ultrafiltration membrane group to the ultrafiltration water tank group, and the electrophoresis pure water system is respectively connected to the ultrafiltration water tank group and the RO liquid tank group.

[0006] Furthermore, the cleaning liquid delivery unit includes a cleaning liquid main pipe, a plurality of cleaning liquid branch pipes arranged in parallel, a first Y-type filter and a first water pump installed on the cleaning liquid main pipe, and a first butterfly valve installed on the cleaning liquid branch pipe. One end of the cleaning liquid main pipe is connected to the cleaning water tank, and the other end is connected to the plurality of cleaning liquid branch pipes. The plurality of cleaning liquid branch pipes are respectively connected to the plurality of ultrafiltration membrane groups.

[0007] Furthermore, the concentrated liquid delivery unit includes a plurality of first concentrated liquid pipes arranged in parallel and connected to the ultrafiltration membrane group, a second concentrated liquid pipe whose ends are connected to the electrophoresis treatment tank, and a plurality of filter components connected in parallel between the first concentrated liquid pipe and the second concentrated liquid pipe, a second butterfly valve is arranged on the first concentrated liquid pipe, and a first one-way valve, a first electric butterfly valve and a second water pump are sequentially installed on the second concentrated liquid pipe along the flow direction of the concentrated liquid.

[0008] Furthermore, the filter assembly includes a filter pipe whose two ends are respectively connected to the first concentrate pipe and the second concentrate pipe, and a second bag filter, two second pressure gauges and two third butterfly valves installed on the filter pipe. The two third butterfly valves are respectively located at the two ends of the second bag filter, and the second pressure gauge is located between the second bag filter and the third butterfly valve.

[0009] Furthermore, the electrophoretic pure water system includes a first electrophoretic pure water pipeline connected to the ultrafiltration water tank group and the RO liquid tank group respectively, and a third water pump, a safety filter, a second one-way valve, at least one pure water membrane assembly and a first flow meter sequentially installed on the first electrophoretic pure water pipeline along the liquid flow direction.

[0010] Furthermore, the electrophoretic pure water system also includes a secondary treatment component for re-treating the RO liquid in the RO liquid tank group, the secondary treatment component includes a secondary treatment pipe connected to the RO liquid tank group at one end and the first electrophoretic pure water pipe at the other end, a fourth water pump installed on the first electrophoretic pure water pipe, a first ball valve, a second flow meter and a third one-way valve installed sequentially on the secondary treatment pipe along the flow direction of the RO liquid, the fourth water pump is located between the second one-way valve and the pure water membrane assembly, and the other end of the secondary treatment pipe is connected to the first electrophoretic pure water pipe located between the fourth water pump and the second one-way valve.

[0011] Furthermore, the electrophoretic pure water system also includes a bottom liquid treatment component for re-treating the RO liquid at the bottom of the RO liquid tank group. The bottom liquid treatment component includes a bottom liquid treatment pipeline at one end connected to the bottom of the RO liquid tank group and the other end connected to the first electrophoretic pure water pipeline, and a fifth butterfly valve, a fifth water pump, a third bag filter and a fifth one-way valve sequentially installed in the bottom liquid treatment pipeline along the flow direction of the RO liquid in the bottom liquid treatment pipeline. The other end of the bottom liquid treatment pipeline is connected to the first electrophoretic pure water pipeline located between the second one-way valve and the pure water membrane assembly.

[0012] Furthermore, the ultrafiltration water tank group includes a circulating water tank, a shaft sealing water tank and a transfer water tank. The circulating water tank is arranged between the shaft sealing water tank and the transfer water tank. The upper end of the circulating water tank is respectively connected to the shaft sealing water tank and the transfer water tank. The ends of the ultrafiltrate delivery unit are respectively connected to the shaft sealing water tank and the transfer water tank. The starting end of the electrophoresis pure water system is connected to the circulating water tank.

[0013] Furthermore, the electrophoresis wastewater treatment system also includes a shaft sealing liquid output system, which includes a shaft sealing liquid delivery pipe connected to the electrophoresis treatment tank at one end and the bottom of the shaft sealing water tank at the other end, and a second ball valve, a sixth water pump and a sixth check valve installed on the shaft sealing liquid delivery pipe. A first liquid level gauge is arranged in the shaft sealing water tank, and the first liquid level gauge is interlocked with the sixth water pump. When the liquid level in the shaft sealing water tank is lower than the set value, the sixth water pump automatically stops running.

[0014] Furthermore, the electrophoresis wastewater treatment system also includes an ultrafiltrate discharge system, which includes a discharge pipe with one end connected to the bottom of the transfer water tank and a seventh butterfly valve, a seventh water pump and a seventh check valve installed on the discharge pipe. A second liquid level gauge is provided in the transfer water tank, and the second liquid level gauge is interlocked with the seventh water pump. When the liquid level in the transfer water tank is lower than the set value, the seventh water pump automatically stops running.

[0015] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0016] The utility model performs membrane separation on the cleaning waste liquid through the ultrafiltration membrane of the ultrafiltration system, and separates small molecular substances (such as solutions) from large molecular substances (such as paint, colloids, etc.), wherein the large molecular substances are transported to the electrophoresis treatment tank for continued use through the concentrated liquid delivery unit, while the small molecular substances are re-processed through the electrophoresis pure water system to obtain RO liquid, and the RO liquid can continue to rinse the components, thereby realizing energy saving and consumption reduction of the electrophoresis system, reducing the pressure of wastewater treatment, and relieving the pressure of environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a simplified structural connection diagram of the electrophoresis wastewater treatment system of the utility model;

[0018] Figure 2 It is a connection diagram of the ultrafiltration system of the utility model;

[0019] Figure 3 It is a connection diagram of the electrophoresis pure water system of the utility model;

[0020] Figure 4 This is a schematic diagram of the connection between the ultrafiltration water tank group of the utility model and other systems. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] In this application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0024] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0025] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] Reference Figure 1 and Figure 2 The present disclosure provides an electrophoresis wastewater treatment system, comprising an electrophoresis treatment tank 4, an ultrafiltration water tank group 3, a cleaning water tank 1, an RO liquid tank group 6, an ultrafiltration system 2 and an electrophoresis pure water system 5, wherein the ultrafiltration system 2 comprises an ultrafiltration host, a cleaning liquid delivery unit 21, a concentrated liquid delivery unit 22 and an ultrafiltrate delivery unit 23, wherein the cleaning liquid delivery unit 21 is respectively connected to the electrophoresis treatment tank 4 and the ultrafiltration host, and the cleaning liquid delivery unit 21 is used to deliver the cleaning liquid in the cleaning water tank 1 to the ultrafiltration host, and the ultrafiltration host has a plurality of ultrafiltration membrane groups 200, and the concentrated liquid delivery unit 22 is respectively connected to the ultrafiltration host and the electrophoresis treatment tank 4, and is used to deliver the concentrated liquid filtered by the ultrafiltration membrane group to the electrophoresis treatment tank 4, and the ultrafiltrate delivery unit 23 is respectively connected to the ultrafiltration host and the ultrafiltration water tank group 3, and is used to deliver the ultrafiltrate filtered by the ultrafiltration membrane group to the ultrafiltration water tank group 3, and the electrophoresis pure water system 5 is respectively connected to the ultrafiltration water tank group 3 and the RO liquid tank group 6.

[0028] Among them, the cleaning water tank 1 is used to store the wastewater generated after flushing the components, and the RO liquid tank group 6 is used to store the spray liquid for flushing the components. The electrophoresis wastewater treatment system of the utility model conveys the wastewater in the cleaning water tank 1 to the ultrafiltration host through the cleaning liquid conveying unit 21, and the wastewater is subjected to membrane separation by the ultrafiltration membrane group 200 of the ultrafiltration host. Under a certain pressure, small molecular substances and solvents can pass through the ultrafiltration membrane group 200, while macromolecular substances such as paint and colloids are retained on the other side of the ultrafiltration membrane group 200. The retained macromolecular substances such as paint are concentrated and conveyed to the electrophoresis treatment tank 4 through the concentrated liquid conveying unit 22 for continued use, while small molecular substances are conveyed to the ultrafiltration water tank group 3 by the ultrafiltrate conveying unit 23, and further processed by the electrophoresis pure water system 5 to produce RO liquid that can be used for flushing the components, thereby realizing energy saving and consumption reduction of the electrophoresis system, reducing the pressure of wastewater treatment, and relieving the pressure of environmental protection.

[0029] Reference Figure 2 The cleaning liquid delivery unit 21 includes a cleaning liquid main pipe 211, a plurality of cleaning liquid branch pipes 212 arranged in parallel, a first Y-type filter 213 and a first water pump 214 installed on the cleaning liquid main pipe 211, and a first butterfly valve 215 installed on the cleaning liquid branch pipe 212. One end of the cleaning liquid main pipe 211 is connected to the cleaning water tank 1, and the other end is connected to a plurality of cleaning liquid branch pipes 212. The plurality of cleaning liquid branch pipes 212 are respectively connected to a plurality of ultrafiltration membrane groups.

[0030] Furthermore, the cleaning liquid delivery unit 21 further includes a cleaning liquid ball valve 216 and a first cleaning liquid pressure gauge 217 provided on the cleaning liquid main pipe 211 , and a second cleaning liquid pressure gauge provided on the cleaning liquid branch pipe 212 .

[0031] The concentrated liquid delivery unit 22 includes a plurality of first concentrated liquid pipes 221 arranged in parallel and connected to the ultrafiltration membrane group 200, a second concentrated liquid pipe 222 connected at its end to the electrophoresis treatment tank 4, and a plurality of filter components 224 connected in parallel between the first concentrated liquid pipe 221 and the second concentrated liquid pipe 222. A second butterfly valve 223 is arranged on the first concentrated liquid pipe 221, and a first one-way valve 225, a first electric butterfly valve 226 and a second water pump 227 are sequentially installed on the second concentrated liquid pipe 222 along the flow direction of the concentrated liquid.

[0032] The filter assembly 224 includes a filter pipe 2241 whose two ends are respectively connected to the first concentrate pipe 221 and the second concentrate pipe 222, and a second bag filter 2242, two second pressure gauges 2244 and two third butterfly valves 2243 installed on the filter pipe 2241. The two third butterfly valves 2243 are respectively located at the two ends of the second bag filter 2242, and the second pressure gauge 2244 is located between the second bag filter 2242 and the third butterfly valve 2243.

[0033] Furthermore, the concentrate delivery unit 22 further includes a concentrate pressure gauge 228 installed in the second concentrate pipeline 222 .

[0034] The ultrafiltrate delivery unit 23 includes an ultrafiltrate delivery pipeline 231 connected to the ultrafiltration water tank group 3 and the plurality of ultrafiltration membrane groups 200 , and an ultrafiltrate flowmeter 233 and an ultrafiltrate ball valve 232 installed on the ultrafiltrate delivery pipeline 231 .

[0035] As a preferred embodiment, the ultrafiltration system 2 also includes a return component for transporting the ultrafiltrate filtered by the ultrafiltration host back to the cleaning water tank 1, and the return component includes a return pipe 218 respectively connected to the cleaning water tank 1 and multiple groups of ultrafiltration membrane groups 200, and a return ball valve 219 installed at the beginning of the return pipe 218.

[0036] Reference Figure 3 The electrophoresis pure water system 5 is used to filter the ultrafiltration liquid through the reverse osmosis membrane to produce RO liquid that can be used to rinse the components. The electrophoresis pure water system 5 includes a first electrophoresis pure water pipeline 51 connected to the ultrafiltration water tank group 3 and the RO liquid tank group 6 respectively, and a third water pump 52, a safety filter 54, a second one-way valve 55, at least one pure water membrane assembly 56 and a first flow meter 57 sequentially installed on the first electrophoresis pure water pipeline 51 along the liquid flow direction.

[0037] As a preferred embodiment, the electrophoretic pure water system 5 also includes a secondary treatment component for re-treating the RO liquid in the RO liquid tank group 6, the secondary treatment component includes a secondary treatment pipe 581 connected to the RO liquid tank group 6 at one end and connected to the first electrophoretic pure water pipe 51 at the other end, a fourth water pump 582 installed on the first electrophoretic pure water pipe 51, a first ball valve 583, a second flow meter 584 and a third one-way valve 585 installed sequentially on the secondary treatment pipe 581 along the flow direction of the RO liquid, the fourth water pump 582 is located between the second one-way valve 55 and the pure water membrane assembly 56, and the other end of the secondary treatment pipe 581 is connected to the first electrophoretic pure water pipe 51 located between the fourth water pump 582 and the second one-way valve 55.

[0038] Furthermore, the secondary treatment component also includes a connecting pipe 587 connected to the secondary treatment pipeline 581 and the pure water membrane assembly 56 respectively, a stop valve 588 installed on the connecting pipe 587, and a fifth butterfly valve 586 installed on the secondary treatment pipeline 581, wherein the fifth butterfly valve 586 is installed on the secondary treatment pipeline 581 near the RO liquid tank group 6, and the connecting pipe 587 is connected to the secondary treatment pipeline 581 located between the fifth butterfly valve 586 and the first ball valve 583.

[0039] As a preferred embodiment, the electrophoretic pure water system 5 also includes a bottom liquid treatment component for re-treating the RO liquid at the bottom of the RO liquid tank group 6. The bottom liquid treatment component includes a bottom liquid treatment pipe 591 having one end connected to the bottom of the RO liquid tank group 6 and the other end connected to the first electrophoretic pure water pipe 51, and a fifth butterfly valve 592, a fifth water pump 593, a third bag filter 594 and a fifth one-way valve 595 sequentially installed in the bottom liquid treatment pipe 591 along the flow direction of the RO liquid in the bottom liquid treatment pipe 591. The other end of the bottom liquid treatment pipe 591 is connected to the first electrophoretic pure water pipe 51 located between the second one-way valve 55 and the pure water membrane assembly 56.

[0040] Furthermore, the bottom liquid treatment pipeline 591 is connected to the first electrophoresis pure water pipeline 51 located between the fourth water pump 582 and the pure water membrane assembly 56, and the bottom liquid treatment assembly also includes an eighth one-way valve 596 installed on the first electrophoresis pure water pipeline 51. The eighth one-way valve 596 is used to prevent the liquid transported to the first electrophoresis pure water pipeline 51 through the bottom liquid treatment pipeline 591 from flowing to the ultrafiltration water tank group 3.

[0041] Reference Figure 4 The ultrafiltration water tank group 3 includes a circulating water tank 32, a shaft sealing water tank 33 and a transfer water tank 31. The circulating water tank 32 is arranged between the shaft sealing water tank 33 and the transfer water tank 31. The upper end of the circulating water tank 32 is connected to the shaft sealing water tank 33 and the transfer water tank 31 respectively. The ends of the ultrafiltrate delivery unit 23 are connected to the shaft sealing water tank 33 and the transfer water tank 31 respectively. The starting end of the electrophoresis pure water system 5 is connected to the circulating water tank 32.

[0042] As a preferred embodiment, the electrophoresis wastewater treatment system also includes a shaft sealing liquid output system 7, which includes a shaft sealing liquid delivery pipe 71 connected to the electrophoresis treatment tank 4 at one end and the bottom of the shaft sealing water tank 33 at the other end, and a second ball valve 72, a sixth water pump 73 and a sixth check valve 74 installed on the shaft sealing liquid delivery pipe. A first liquid level gauge 75 is provided in the shaft sealing water tank 33, and the first liquid level gauge 75 is interlocked with the sixth water pump 73. When the liquid level in the shaft sealing water tank 33 is lower than the set value, the sixth water pump 73 automatically stops running.

[0043] Furthermore, the shaft sealing liquid output system 7 also includes a shaft sealing liquid return pipe 76 and a return stop valve 77 installed on the shaft sealing liquid return pipe 76. One end of the shaft sealing liquid return pipe 76 is connected to the shaft sealing liquid delivery pipe 71 and the other end is connected to the shaft sealing water tank 33. The shaft sealing liquid return pipe 76 is connected to the shaft sealing liquid delivery pipe 71 located on the rear side of the sixth one-way valve 74.

[0044] As a preferred embodiment, the electrophoresis wastewater treatment system also includes an ultrafiltrate discharge system 8, which includes a discharge pipe 81 connected to the bottom of the transfer water tank 31 at one end and a seventh butterfly valve 82, a seventh water pump 83 and a seventh check valve 84 installed on the discharge pipe 81. A second liquid level gauge 85 is provided in the transfer water tank 31, and the second liquid level gauge 85 is interlocked with the seventh water pump 83. When the liquid level in the transfer water tank 31 is lower than the set value, the seventh water pump 83 automatically stops running.

[0045] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to the above embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the above embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electrophoresis wastewater treatment system, characterized in that: The invention comprises an electrophoresis treatment tank (4), an ultrafiltration water tank group (3), a cleaning water tank (1), an RO liquid tank group (6), an ultrafiltration system (2) and an electrophoresis pure water system (5), wherein the ultrafiltration system (2) comprises an ultrafiltration host, a cleaning liquid delivery unit (21), a concentrated liquid delivery unit (22) and an ultrafiltrate delivery unit (23), wherein the cleaning liquid delivery unit (21) is connected to the electrophoresis treatment tank (4) and the ultrafiltration host, respectively, and the cleaning liquid delivery unit (21) is used to deliver the cleaning liquid in the cleaning water tank (1) to the ultrafiltration host, and the ultrafiltration host The machine has a plurality of ultrafiltration membrane groups (200), the concentrated liquid delivery unit (22) is respectively connected to the ultrafiltration host and the electrophoresis treatment tank (4), and is used to deliver the concentrated liquid filtered by the ultrafiltration membrane group to the electrophoresis treatment tank (4), the ultrafiltrate delivery unit (23) is respectively connected to the ultrafiltration host and the ultrafiltration water tank group (3), and is used to deliver the ultrafiltrate filtered by the ultrafiltration membrane group to the ultrafiltration water tank group (3), and the electrophoresis pure water system (5) is respectively connected to the ultrafiltration water tank group (3) and the RO liquid tank group (6).

2. The electrophoresis wastewater treatment system according to claim 1, characterized in that: The cleaning liquid delivery unit (21) comprises a cleaning liquid main pipe (211), a plurality of cleaning liquid branch pipes (212) arranged in parallel, a first Y-type filter (213) and a first water pump (214) installed on the cleaning liquid main pipe (211), and a first butterfly valve (215) installed on the cleaning liquid branch pipe (212); one end of the cleaning liquid main pipe (211) is connected to the cleaning water tank (1), and the other end is connected to the plurality of cleaning liquid branch pipes (212); the plurality of cleaning liquid branch pipes (212) are respectively connected to the plurality of ultrafiltration membrane groups.

3. The electrophoresis wastewater treatment system according to claim 1, characterized in that: The concentrated liquid delivery unit (22) comprises a plurality of first concentrated liquid pipelines (221) arranged in parallel and connected to the ultrafiltration membrane group (200), a second concentrated liquid pipeline (222) whose ends are connected to the electrophoresis treatment tank (4), and a plurality of filter components (224) connected in parallel between the first concentrated liquid pipeline (221) and the second concentrated liquid pipeline (222), a second butterfly valve (223) being arranged on the first concentrated liquid pipeline (221), and a first non-return valve (225), a first electric butterfly valve (226) and a second water pump (227) being installed in sequence on the second concentrated liquid pipeline (222) along the flow direction of the concentrated liquid.

4. The electrophoresis wastewater treatment system according to claim 3, characterized in that: The filter assembly (224) comprises a filter pipe (2241) whose two ends are respectively connected to the first concentrate pipe (221) and the second concentrate pipe (222), a second bag filter (2242), two second pressure gauges (2244) and two third butterfly valves (2243) installed on the filter pipe (2241), the two third butterfly valves (2243) are respectively located at the two ends of the second bag filter (2242), and the second pressure gauge (2244) is located between the second bag filter (2242) and the third butterfly valve (2243).

5. The electrophoresis wastewater treatment system according to claim 1, characterized in that: The electrophoretic pure water system (5) comprises a first electrophoretic pure water pipeline (51) connected to the ultrafiltration water tank group (3) and the RO liquid tank group (6) respectively, and a third water pump (52), a safety filter (54), a second one-way valve (55), at least one pure water membrane assembly (56) and a first flow meter (57) sequentially installed on the first electrophoretic pure water pipeline (51) along the liquid flow direction.

6. The electrophoresis wastewater treatment system according to claim 5, characterized in that: The electrophoretic pure water system (5) also includes a secondary treatment component for re-treating the RO liquid in the RO liquid tank group (6), and the secondary treatment component includes a secondary treatment pipeline (581) connected to the RO liquid tank group (6) at one end and connected to the first electrophoretic pure water pipeline (51) at the other end, a fourth water pump (582) installed on the first electrophoretic pure water pipeline (51), a first ball valve (583), a second flow meter (584) and a third one-way valve (585) installed in sequence on the secondary treatment pipeline (581) along the flow direction of the RO liquid, the fourth water pump (582) is located between the second one-way valve (55) and the pure water membrane assembly (56), and the other end of the secondary treatment pipeline (581) is connected to the first electrophoretic pure water pipeline (51) located between the fourth water pump (582) and the second one-way valve (55).

7. The electrophoresis wastewater treatment system according to claim 5, characterized in that: The electrophoretic pure water system (5) also includes a bottom liquid treatment component for re-treating the RO liquid at the bottom of the RO liquid tank group (6), the bottom liquid treatment component including a bottom liquid treatment pipeline (591) having one end connected to the bottom of the RO liquid tank group (6) and the other end connected to the first electrophoretic pure water pipeline (51), and a fifth butterfly valve (592), a fifth water pump (593), a third bag filter (594) and a fifth one-way valve (595) sequentially installed in the bottom liquid treatment pipeline (591) along the flow direction of the RO liquid in the bottom liquid treatment pipeline (591), the other end of the bottom liquid treatment pipeline (591) is connected to the first electrophoretic pure water pipeline (51) located between the second one-way valve (55) and the pure water membrane assembly (56).

8. The electrophoresis wastewater treatment system according to claim 1, characterized in that: The ultrafiltration water tank group (3) comprises a circulating water tank (32), a shaft sealing water tank (33) and a transfer water tank (31); the circulating water tank (32) is arranged between the shaft sealing water tank (33) and the transfer water tank (31); the upper end of the circulating water tank (32) is respectively connected to the shaft sealing water tank (33) and the transfer water tank (31); the end of the ultrafiltrate delivery unit (23) is respectively connected to the shaft sealing water tank (33) and the transfer water tank (31); and the starting end of the electrophoresis pure water system (5) is connected to the circulating water tank (32).

9. The electrophoresis wastewater treatment system according to claim 8, characterized in that: The electrophoresis wastewater treatment system further comprises a shaft sealing liquid output system (7), the shaft sealing liquid output system (7) comprising a shaft sealing liquid delivery pipe (71) having one end connected to the electrophoresis treatment tank (4) and the other end connected to the bottom of the shaft sealing water tank (33), and a second ball valve (72), a sixth water pump (73) and a sixth non-return valve (74) installed on the shaft sealing liquid delivery pipe. A first liquid level gauge (75) is arranged in the shaft sealing water tank (33), and the first liquid level gauge (75) is interlocked with the sixth water pump (73). When the liquid level in the shaft sealing water tank (33) is lower than a set value, the sixth water pump (73) automatically stops running.

10. The electrophoresis wastewater treatment system according to claim 8, characterized in that: The electrophoresis wastewater treatment system also includes an ultrafiltrate discharge system (8), which includes a discharge pipe (81) having one end connected to the bottom of the transfer water tank (31) and a seventh butterfly valve (82), a seventh water pump (83) and a seventh check valve (84) installed on the discharge pipe (81). A second liquid level gauge (85) is provided in the transfer water tank (31), and the second liquid level gauge (85) is interlocked with the seventh water pump (83). When the liquid level in the transfer water tank (31) is lower than a set value, the seventh water pump (83) automatically stops running.

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