CN212334880U

CN212334880U - Electrode plate assembly and electric flocculation sewage treatment device

Info

Publication number: CN212334880U
Application number: CN202021448213.8U
Authority: CN
Inventors: 赵宫鼎
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-01-12
Anticipated expiration: 2030-07-21

Abstract

The utility model provides an electrode plate component and an electric flocculation sewage treatment device, which relate to the field of sewage treatment and solve the problem that flocculate is easy to adhere to the electrode plate to influence the electrolysis efficiency when sewage is treated by electrolysis; the electrode plate assembly comprises a shell, an anode plate and a cathode plate, wherein the anode plate is positioned in the shell and used for being connected with a positive electrode of a power supply, the cathode plate is used for being connected with a negative electrode of the power supply, the anode plate and the cathode plate are arranged in a staggered mode, a flow channel for sewage to flow through is formed between the anode plate and the cathode plate, and the anode plate is rotatably arranged in the plane where the anode plate is positioned and used for preventing flocculate; the utility model discloses the rotatable setting in the plane that the anode plate is located its place, when the runner between anode plate and the negative plate is flowed through to sewage in, pivoted anode plate can prevent to a certain extent that the flocculation thing from attaching to and influence the plate electrode and lead to the electrolysis inefficiency with the sewage contact, prevents that the flocculation thing from attaching to produce harmful substance on the anode plate when the circular telegram, has improved sewage treatment's efficiency, safer, environmental protection.

Description

Electrode plate assembly and electric flocculation sewage treatment device

Technical Field

The utility model belongs to the technical field of sewage treatment technique and specifically relates to an electrode plate subassembly and electric flocculation sewage treatment plant is related to.

Background

The traditional and generally applied sewage treatment methods mostly adopt a chemical method and a biochemical method, the two methods have certain defects, after reagents added by the chemical method participate in reaction, secondary pollution of the chemical reagents exists, the biochemical method is to generate biological bacteria to decompose harmful substances in sewage under a certain temperature condition, but the method has the defects that the environment needs to be controlled to have a certain proper temperature and certain fungus culture and growth time is needed.

The electric flocculation is an effective method for sewage treatment, which is recognized by the industry, and the electrolytic electric flocculation method is a physical treatment method, does not need to add any chemical agent, and does not require harsh conditions such as environmental temperature and the like. However, the electric flocculation sewage treatment method is mostly used in small-sized places and laboratories due to process problems, and is difficult to apply to sewage occasions for large-scale treatment.

The applicant has found that the prior art has at least the following technical problems:

on one hand, harmful substances or ionized ions in the sewage are easy to attach to the anode plate after long-term work, the contact area between the electrode plate and fluid is influenced, toxic substances are easy to generate on the electrode plate in the electrifying work process of the electrode, the work efficiency is low, and potential safety hazards exist; after long-term use, a dense oxide (or other compound) film is easily formed on the surface of the anode plate, and the film covers the metal, so that the anode is separated from the solution, the continuous oxidation and dissolution of the metal are prevented, and the anode plate is passivated. The above problems affect the electrolytic efficiency of the electrode plate.

On the other hand, the electrolysis efficiency of the existing electrocoagulation sewage treatment device is low, for example, in the patent application named as "a sewage treatment system and sewage electrolysis process", it includes the reservoir, be equipped with constant temperature equipment, monitoring devices and electrolytic device in the reservoir, … … the electrolytic device has two electrode ends … … extending in the sewage, namely the above-mentioned mode is directly to carry out the electrolysis to the sewage in the reservoir with extending the electrode end to the reservoir, because the mobility of sewage in the reservoir is poor, the area of contact of sewage and electrode slice is limited, and this method is difficult to be used in the sewage occasion of high concentration sewage and big volume.

Due to the problems, the electric flocculation sewage technology is difficult to effectively popularize and apply.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electrode plate component and an electric flocculation sewage treatment device, which solve the technical problem that flocculate is easy to gather or adhere to the electrode plate when sewage is treated by electrolysis in the prior art and the electrolysis efficiency is influenced; the utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides an electrode plate subassembly, including the casing, be located the casing and be used for the anode plate be connected with the power positive pole and be used for the negative plate be connected with the power negative pole, wherein:

the anode plates and the cathode plates are arranged in a staggered mode, a flow channel for sewage to flow through is arranged between the anode plates and the cathode plates, and the anode plates are rotatably arranged in the plane of the anode plates to prevent flocculate adhesion.

Preferably, a rotating shaft is arranged at the central axis position of all the anode plates, the rotating shaft is fixedly connected with all the anode plates, and one end of the rotating shaft is connected with a driving device for driving the anode plates to rotate.

Preferably, a concession through hole for the rotating shaft to pass through is arranged at the center of the cathode plate, and a movable gap is arranged between the cathode plate and the peripheral wall of the rotating shaft to prevent the cathode plate from interfering the movement of the rotating shaft.

Preferably, the anode plate and/or the cathode plate are disc-shaped, and all the anode plate, the cathode plate and the rotating shaft are coaxially arranged.

Preferably, insulating abrasive is filled between the anode plates and/or between the anode plates and the cathode plates.

Preferably, the insulating abrasive is filled in at least the lower half part of the inner cavity of the shell and covers the lower half parts of all the anode plates.

Preferably, the water inlet of the flow channel is located at the lower part of the housing, the water outlet is located at the upper part of the housing so that the fluid flows from bottom to top in the flow channel, and the anode plate and the cathode plate are arranged along the flow direction of the fluid.

Preferably, a carbon brush part is arranged at the other end of the rotating shaft, and the carbon brush part is used for connecting the rotating shaft with the positive electrode of the power supply so as to conduct the anode plate with the positive electrode of the power supply; all the negative plates are fixedly connected through a clamping part and are used for being communicated with a power supply negative electrode, and the clamping part is fixedly arranged on the shell.

The utility model also provides an electricity flocculation sewage treatment plant, including above-mentioned electrode plate subassembly, the electrode plate subassembly sets up on the flowing water route and is used for the sewage electrolysis of flowing through it.

Preferably, the device further comprises a pump body and a water reservoir which are arranged on the water flow path, wherein: the cistern set up in the play water end of electrode plate subassembly, the pump body is used for making sewage possess certain velocity of flow and make it loop through the electrode plate subassembly with the cistern to make by after the electrode plate subassembly electrolysis sewage get into naturally subside in the cistern, the middle part of cistern is connected with the drain pipe.

Compared with the prior art, the utility model, following beneficial effect has:

1. the utility model provides an electrode plate component, because the anode plate can be in the rotatable setting of its plane of place, when sewage flows through in the runner between anode plate and the cathode plate, the pivoted anode plate can prevent to a certain extent that the flocculation thing from gathering or attaching to on the electrode plate, does benefit to the abundant contact with the electrode plate of fluid, prevents that the flocculation thing from influencing the electrolytic efficiency of sewage, and prevents that the flocculation thing from attaching to and producing harmful substance on the anode plate when circular telegram; the electrode plate assembly improves the efficiency of sewage treatment and is safer and more environment-friendly.

2. The utility model provides an electric flocculation sewage treatment plant owing to possess above-mentioned electrode plate subassembly, the event has the advantage that prevents that the flocculation thing from attaching to on the plate electrode, improving sewage treatment efficiency, preventing the toxic substance production equally.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an electrode plate assembly of the present invention;

FIG. 2 is a schematic structural diagram of an anode plate and a cathode plate in a shell;

FIG. 3 is a schematic view of a connection structure of the shaft and the housing;

FIG. 4 is a schematic structural view of the electric flocculation sewage treatment device of the utility model;

in the figure 100, an electrode plate assembly; 1. a housing; 101. a water inlet; 102. a water outlet; 103. a clamping portion; 104. an insulating sheet; 2. an anode plate; 3. a cathode plate; 301. a yielding through hole; 4. a rotating shaft; 41. a fixed seat; 5. a motor; 6. an insulating abrasive; 7. a carbon brush; 81. a bearing; 82. a shaft seat; 9. an insulating base;

200. a pump body; 300. a reservoir; 301. a drain pipe; 400. a power supply device; 401. and (4) conducting wires.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

The present embodiment provides an electrode plate assembly, as shown in fig. 1 to 3, the electrode plate assembly 100 includes a housing 1, an anode plate 2 located in the housing 1 and used for connecting with a positive electrode of a power supply, and a cathode plate 3 used for connecting with a negative electrode of the power supply, wherein:

the anode plates 2 and the cathode plates 3 are arranged in a staggered mode, a flow channel for sewage to flow through is formed between the anode plates 2 and the cathode plates 3, and the anode plates 2 are rotatably arranged in the plane of the anode plates 2 to prevent flocculate adhesion.

The casing 1 includes a plurality of anode plates 2 and a plurality of cathode plates 3, for example, two anode plates 2 and two cathode plates 3 are present in the casing 1 in fig. 1, but the number is not limited to the above number. The anode plates 2 and the cathode plates 3 are distributed in a staggered mode at intervals, a flow channel for a sewage channel is formed between every two adjacent anode plates 2 and cathode plates 3, and when sewage enters the shell 1 and passes through the flow channel, electrolytic treatment can be carried out.

In the electrode plate assembly 100 of this embodiment, since the anode plate 2 can be rotatably disposed in the plane where the anode plate is located, when sewage flows through the flow channel between the anode plate 2 and the cathode plate 3, the rotating anode plate 2 can prevent flocs from attaching to or accumulating on the electrode plate to a certain extent, which is beneficial for the fluid to fully contact with the electrode plate, preventing the flocs from affecting the electrolysis efficiency of the sewage, and preventing the flocs from attaching to the anode plate 2 to generate harmful substances when the current is applied; the electrode plate assembly 100 improves the efficiency of sewage treatment and is safer and more environmentally friendly.

In order to enable the anode plates 2 to be located inside the casing 1 and rotate along the plane in which the anode plates are located, in this embodiment, an alternative implementation is provided, as shown in fig. 1 and fig. 2, a rotating shaft 4 is located at the central axis position of all the anode plates 2, the rotating shaft 4 is fixedly connected with all the anode plates 2, and one end of the rotating shaft 4 is connected with a driving device for driving the anode plates 2 to rotate.

As shown in fig. 3, the anode plate 2 is fixedly connected to the anode plate 2 through a fixing seat 41 fixedly connected to the outer periphery of the rotating shaft 4, and the fixing seat 41 is in interference fit with the anode plate 2.

Wherein, above-mentioned drive arrangement can be gear motor 5, and motor 5 is located casing 1 and is connected in order to drive pivot 4 rotation with pivot 4 through its output shaft, can adjust the rotation direction, the rotation frequency of anode plate 2 in order to adapt to different circumstances through setting up the rotation direction, the rotation frequency etc. of motor 5.

In the present embodiment, since the passivation occurs on the anode plate 2, the cathode plate 3 may be fixedly disposed within the case 1 by disposing the anode plate 2 in a rotatable manner. In order to fix the cathode plate 3 conveniently, as shown in fig. 1 and 2, a clamping portion 103 is provided on the inner wall of the casing 1, and a clamping hole for interference fit with the cathode plate 3 is provided on the clamping portion 103, as shown in fig. 2, when the clamping portion 103 fixes the cathode plate 3 without affecting the flow of the fluid.

In order to space the anode plate 2 and the cathode plate 3 to prevent the contact short circuit therebetween, as shown in fig. 2, an insulating sheet 104 fixed to the case 1 is further present between the adjacent anode plate 2 and cathode plate 3.

In order to prevent the cathode plate 3 from moving while the anode plate 2 is moved by the rotating shaft 4, as an alternative embodiment, referring to fig. 1 and 2, a yielding through hole 301 for the rotating shaft 4 to pass through is formed in the center of the cathode plate 3, and a movable gap is formed between the cathode plate 3 and the peripheral wall of the rotating shaft 4 to prevent the cathode plate 3 from interfering with the movement of the rotating shaft 4.

The abdicating through hole 301 is used for the rotation shaft 4 to pass through so that the rotation shaft 4 can be connected with all the anode plates 2, and a movable gap is formed between the abdicating through hole 301 and the rotation shaft 4 so as to leave a space for the rotation of the rotation shaft 4. In other words, the structure of the cathode plate 3 is configured such that the rotating shaft 4 can be connected to all the anode plates 2, and the rotation of the rotating shaft 4 and all the anode plates 2 is not interfered with the cathode plate 3 at all, thereby facilitating the normal operation of the electrolysis.

Since the electrolysis of the sewage occurs between the anode plate 2 and the cathode plate 3, when the anode plate 2 rotates in the plane, in order to always have an electrolysis region between the anode plate 2 and the cathode plate 3, as an alternative embodiment, the anode plate 2 and/or the cathode plate 3 are disc-shaped, and all the anode plate 2, the cathode plate 3 and the rotating shaft 4 are coaxially arranged.

Referring to fig. 2, the anode plate 2 and the cathode plate 3 in this embodiment are both disc-shaped, so that the anode plate 2 can always form an electrolysis region, i.e. a flow channel through which sewage flows, with the adjacent cathode plate 3 when rotating, and the rotation of the anode plate 2 is prevented from affecting the change of the electrolysis region and affecting the electrolysis efficiency.

The mode that above-mentioned anode plate 2, negative plate 3 and pivot 4 coaxial set up is convenient for anode plate 2 and is rotated steadily, and can guarantee great electrolysis region simultaneously in the pivoted working process of anode plate 2, if anode plate 2 eccentric rotation, then exist and the negative plate between the electrolysis region that produces the area change along with the rotation of anode plate, influence electrolysis efficiency.

Example 2

Anodic passivation is the phenomenon of metal passivation caused by anodic polarization, in which the metal or compound acting as the anode loses its ability to pass into solution to varying degrees under the action of an electric current. The general anode passivation is that a layer of compact oxide (or other compound) film is generated on the surface of the anode, and the layer of film covers the metal, so that the anode is isolated from the solution, and the further oxidation and dissolution of the metal are hindered.

In order to solve the problem that the passivation of the anode plate affects the efficiency of the sewage electrolysis, the present embodiment is improved on the basis of the above embodiment 1, as shown in fig. 1, in order to further improve the effect of preventing the passivation of the anode plate 2, referring to fig. 1, the housing 1 of the present embodiment has an insulating abrasive 6, and the insulating abrasive 6 is filled between the anode plates 2 and/or between the anode plate 2 and the cathode plate 3.

The insulating abrasive 6 may be a non-conductive granular material, such as quartz sand, and the specific material is not limited herein. The filling density of the insulating abrasive 6 should allow the anode plate 2 to rotate at a certain speed, and rub the anode plate 2 on the premise of allowing the anode plate 2 to rotate, so as to remove the oxide film to improve and ensure the normal electrolytic operation of the anode plate.

The insulating material can generate friction with the surface of the anode plate 2 in the rotating process of the anode plate 2, and the adhesion of flocculates on the anode plate 2 is reduced by utilizing the friction force, so that the passivation of the anode plate 2 is prevented.

As an alternative embodiment, referring to fig. 1, the insulating abrasive 6 is filled in at least the lower half of the inner cavity of the housing 1 and covers the lower half of all the anode plates 2.

As shown in fig. 1, in specific operation, the electrode plate assembly 100 is placed as shown in the figure, i.e. the rotating shaft 4 is horizontally arranged, the anode plate 2 and the cathode plate 3 are vertically arranged, the abrasive is positioned at the lower plate part of the shell 1, and due to gravity, the abrasive is loosened by water flow and cannot be separated from the lower area, and even if the rotating shaft 4 moves the abrasive, the abrasive is always kept at the lower half part of the rotating shaft 4.

In order to prevent the abrasive from affecting the water inlet 101 and the water outlet 102, a filter screen portion or a blocking portion allowing sewage to pass through but not allowing the abrasive to pass through may be disposed on one side of the water inlet 101 and the water outlet 102 close to the inside of the housing 1.

As an alternative embodiment, referring to fig. 1, in the present embodiment, the water inlet 101 of the flow channel is located at the lower part of the housing 1, the water outlet 102 is located at the upper part of the housing 1 so that the fluid flows from bottom to top in the flow channel, and the anode plate 2 and the cathode plate 3 are arranged along the flow direction of the fluid.

The water inlet 101 is positioned at the lower part, the water outlet 102 is positioned at the upper part of the shell 1, so that the sewage entering the shell 1 forms fluid flowing from bottom to top, the sewage is more fully contacted with the electrode plate, and the electrolysis efficiency is improved.

As an alternative embodiment, referring to fig. 1 and 3, a carbon brush 7 is present at the other end of the rotating shaft 4, and the carbon brush 7 is used for connecting the rotating shaft 4 with the positive power supply electrode so as to conduct the anode plate 2 with the positive power supply electrode; all the cathode plates 3 are fixedly connected through a clamping part 103 for conducting with the negative electrode of the power supply, and the clamping part 103 is fixedly arranged on the shell 1.

In this embodiment, because the anode plate 2 is rotatable, in order to facilitate the connection between the anode plate and the power source, as shown in fig. 1 and fig. 3, the rotating shaft 4 and the fixing base 41 can be made of a conductive material in this embodiment, the other end of the rotating shaft 4 is provided with a carbon brush 7 which is sleeved on the rotating shaft 4 and used for being connected with the power source, and the carbon brush 7 is connected with the rotating shaft 4 and the power source anode, so that the anode plate 2 is conducted with the power source. The clamping part 103 for fixing the cathode plate 3 is made of conductive materials, and the clamping part 103 fixes and connects all the cathode plates 3 to lead the cathode plates 3 out of the shell 1 so as to form an electric connection end for connecting with the negative pole of a power supply.

When power is supplied to the anode plate through the carbon brush and the rotating shaft, the housing should be insulated, as shown in fig. 3, in order to prevent the carbon brush from being conductive to the housing, a bearing is located between the rotating shaft and the housing, an insulating base 9 is disposed at the periphery of the bearing 81 to be insulated from the housing 4, and specifically, the insulating base 9 may be made of an insulating material, such as a nylon material, and is not limited herein.

Fig. 3 shows an implementable connection structure of the rotating shaft and the housing, wherein, in order to enable the rotating shaft 4 to rotate on the housing 1, the connection between the rotating shaft and the housing is provided with a bearing 81, and the bearing 81 is fixed through a shaft seat 82.

In the embodiment of the electrode plate assembly 100, sewage enters from the water inlet 101 at the lower part of the shell 1, when the anode plate 2 and the cathode plate 3 are electrified to work, the cathode plate 3 is fixed, the anode plate 2 is positioned in the plane where the anode plate is positioned to rotate (for example, in the vertical plane in fig. 1), the flocculate in the sewage is prevented from accumulating or attaching through the rotation of the anode plate, the insulating abrasive 6 covering the lower half part of the anode plate 2 exists at the lower half part of the shell 1, the oxide film generated by passivation on the anode plate is timely removed through the friction between the abrasive and the anode plate 2, the normal electrolytic work of the anode plate is ensured, and the further treatment of the.

Example 3

The present embodiment provides an electric flocculation sewage treatment apparatus, as shown in fig. 4, comprising the above-mentioned electrode plate assembly 100, wherein the electrode plate assembly 100 is disposed on a water flow path and is used for electrolyzing sewage flowing through the same.

The utility model provides an electric flocculation sewage treatment plant owing to possess above-mentioned electrode plate subassembly 100, so has the advantage that prevents that anode plate 2 from attaching to passivation, improvement sewage treatment efficiency because of the flocculation thing, prevents that the noxious material from producing equally.

In order to further improve the sewage treatment efficiency, as an alternative embodiment, referring to fig. 4, the electric flocculation sewage treatment apparatus of the present embodiment further comprises a pump body 200, a water reservoir 300 and a power supply unit 400 disposed on the flow path, wherein: the water reservoir 300 is disposed at a water outlet end of the electrode plate assembly 100, the pump body 200 is used for making sewage flow at a certain flow rate and sequentially pass through the electrode plate assembly 100 and the water reservoir 300, so that the sewage enters the water reservoir 300 for natural sedimentation after being electrolyzed by the electrode plate assembly 100, a water discharge pipe 301 is connected to the middle part of the water reservoir 300, and the electrode plate assembly 100 is connected with the power supply unit 400 through a wire 401.

Since the clear water body exists in the middle of the reservoir 300 while the treated sewage is statically settled in the reservoir 300, the drain pipe 301 is connected to the middle of the reservoir 300 so as to collect the treated water body.

The electric flocculation sewage treatment device in the embodiment separately treats electrolysis and sedimentation of sewage, when the sewage has a certain flow velocity and passes through the electrode plate assembly 100, on one hand, the electric flocculation sewage treatment device is beneficial to full contact of fluid with the electrode plate assembly 100, so that the electrolysis efficiency and the electrolysis degree of the sewage are improved, on the other hand, flowing sewage can reduce flocculate to be attached to the inside of the electrode plate assembly 100 to a certain extent, and toxic substances are prevented from being generated in the electrolysis process; and the electrolyzed sewage has a certain flow velocity and flows into the water storage tank 300, the turbid matter, the air-floated matter and the clear liquid naturally settle in the water storage tank 300, and the treated clear water is led out from the middle part of the water storage tank 300 through the drainage pipe 301 arranged at the middle part of the water storage tank 300, so that the sewage treatment efficiency is improved, and the water treatment method is safer and more environment-friendly.

The specific work flow of the electric flocculation sewage treatment device in the embodiment is as follows: the sewage is sucked into the pump body 200, the sewage flows through the electrode plate assembly 100 at a certain flow speed through the pump body 200, the sewage is electrolyzed through the electrode plate assembly 100, the electrolyzed sewage and gas generated by electrolysis form a gas-liquid mixture, the discharged gas-liquid mixture enters the water storage tank 300 to be slowly floated and precipitated, in the process, the sewage is gradually layered and precipitated at the lowest layer, the floating turbidity is supported and floated on the surface of the liquid, the middle part of the liquid is changed into clear liquid, and the clear liquid is led out through the drain pipe 301, so that the sewage treatment process is completed.

As an alternative embodiment, referring to fig. 1, the pump body 200 and the electrode plate assembly 100 in this embodiment may be disposed in a housing, and the housing is provided with a pipeline inlet and a pipeline outlet, and a positive interface and a negative interface for connecting with a power supply.

The structure is convenient for carrying the whole device, and the shell is carried along with the position of the water storage tank 300 or the sewage pool, so that the use is more flexible and convenient.

The particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An electrode plate assembly comprising a housing, an anode plate within the housing for connection to a positive power supply and a cathode plate for connection to a negative power supply, wherein:

2. The electrode plate assembly of claim 1, wherein a rotating shaft is disposed at a central axis of all the anode plates, the rotating shaft is fixedly connected to all the anode plates, and a driving device is connected to one end of the rotating shaft for driving the anode plates to rotate.

3. The electrode plate assembly of claim 2, wherein a relief through hole for the rotation shaft to pass through is formed at the center of the cathode plate, and a moving gap is formed between the cathode plate and the peripheral wall of the rotation shaft to prevent the cathode plate from interfering with the movement of the rotation shaft.

4. The electrode plate assembly according to claim 2 or 3, wherein the anode plate and/or the cathode plate are each disc-shaped, and all of the anode plate, the cathode plate and the rotating shaft are coaxially disposed.

5. The electrode plate assembly according to claim 1 or 2, wherein insulating abrasive is present in the case, and the insulating abrasive is filled between the anode plates and/or between the anode plates and the cathode plates.

6. The electrode plate assembly of claim 5, wherein the insulating abrasive fills at least a lower half of the internal cavity of the housing and covers a lower half of all of the anode plates.

7. The electrode plate assembly of claim 1, wherein the inlet of the flow channel is located at a lower portion of the housing, the outlet is located at an upper portion of the housing for fluid flow from bottom to top within the flow channel, and the anode plate and the cathode plate are arranged in a direction of fluid flow.

8. The electrode plate assembly of claim 2, wherein a carbon brush is disposed at the other end of the rotating shaft, and the carbon brush is used for connecting the rotating shaft and the positive power supply to conduct the anode plate and the positive power supply; all the negative plates are fixedly connected through a clamping part and are used for being communicated with a power supply negative electrode, and the clamping part is fixedly arranged on the shell.

9. An electro-flocculation wastewater treatment apparatus comprising an electrode plate assembly according to any one of claims 1 to 8, said electrode plate assembly being disposed on a flow path and adapted to electrolyze wastewater flowing therethrough.

10. The apparatus of claim 9, further comprising a pump body and a reservoir disposed on the flow path, wherein: the cistern set up in the play water end of electrode plate subassembly, the pump body is used for making sewage possess certain velocity of flow and make it loop through the electrode plate subassembly with the cistern to make by after the electrode plate subassembly electrolysis sewage get into naturally subside in the cistern, the middle part of cistern is connected with the drain pipe.