Grid flocculation reaction tank with electric flocculation function

Abstract

The invention belongs to the field of municipal water purification engineering, and provides a grid flocculation reaction tank with an electric flocculation function, which comprises a tank body, an anode plate and a cathode plate, a first hole and a second hole are formed in the side wall of the tank body; the anode plate is arranged in the tank body, the outer edge of the anode plate abuts against the inner wall of the tank body, and meshes are formed in the anode plate; the cathode plate is arranged in the pool body, the outer edge of the cathode plate abuts against the inner wall of the pool body, meshes are formed in the cathode plate, the anode plate and the cathode plate are arranged in parallel at intervals to jointly form a flocculation structure, and the first hole and the second hole are located in the upper side and the lower side of the flocculation structure respectively. In the reaction tank, the anode plates can be subjected to oxidation reaction to generate metal ions, metal hydroxides and polyhydroxy complexes are generated through hydrolysis and polymerization, and the metal hydroxides and the polyhydroxy complexes can be quickly subjected to flocculation reaction with raw water. Under the condition that a flocculant is not added or a small amount of flocculant is added, a flocculation function is realized through an electric flocculation reaction, so that medicaments can be saved, the flocculation effect can be enhanced, and the treatment efficiency of turbidity and algae in a water body is greatly improved.

Description

Technical Field

[0001] The invention belongs to the field of municipal water purification engineering, and in particular relates to a grid flocculation reaction pool with an electric flocculation function. Background Art

[0002] Traditional water purification treatment mainly involves adding flocculants, and then treating drinking water through processes such as coagulation, sedimentation, filtration, and disinfection. The electrochemical method can simultaneously remove organic matter and heavy metals in water and reduce turbidity. Among them, active substances such as metal hydroxides and polyhydroxy complexes produced by electroflocculation have strong adsorption and coagulation effects, and their activity is better than that of conventional coagulants. The microbubbles produced by electroflotation can not only play a mixing role, but also complete the flotation of particles and improve the solid-liquid separation effect. In addition, the amount of sludge produced after electrochemical treatment is small and dense, which is easy to handle, and the generated flocs are not easy to re-stabilize. Therefore, the electrochemical method has great potential for development in algae removal and turbidity removal, and the removal of hardness, fluoride, heavy metals, suspended matter, and microorganisms in water.

[0003] In the prior art, when conventional flocculation tanks are used to treat algae-containing water, it is difficult to form good flocs because the algae-containing water is difficult to coagulate, resulting in algae being difficult to remove in the sedimentation tank. Therefore, the algae treatment process has problems such as long treatment cycle, low treatment efficiency, and the need to add a large amount of flocculants. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a grid flocculation reaction tank with an electric flocculation function, which can solve the problems of long treatment cycle, low efficiency and large dosage in the treatment process of algae-containing water.

[0005] To achieve the above object, the present invention adopts the following technical scheme: a grid flocculation reaction tank with electric flocculation function, comprising a tank body, an anode plate, and a cathode plate; The side wall of the pool body is provided with a first hole and a second hole; The anode plate is arranged in the cell body, the outer edge of the anode plate abuts against the inner wall of the cell body, and the anode plate is provided with mesh holes; The cathode plate is arranged in the cell body, the outer edge of the cathode plate is in contact with the inner wall of the cell body, the cathode plate is provided with mesh holes, the anode plate and the cathode plate are arranged in parallel and spaced apart to form a flocculation structure, and the first hole and the second hole are respectively located on the upper and lower sides of the flocculation structure.

[0006] Preferably, a mud bucket is provided at the bottom of the pool body.

[0007] Preferably, a bottom valve is provided at the bottom of the mud hopper, and the bottom valve is connected to a mud discharge pipe.

[0008] Preferably, the anode plate and the cathode plate are both arranged horizontally.

[0009] Preferably, the anode plate is an aluminum plate, and the cathode plate is a stainless steel plate.

[0010] Preferably, the thickness of the anode plate and the cathode plate are both 2±0.5 mm.

[0011] Preferably, the distance between the anode plate and the cathode plate is 20±5 mm.

[0012] Preferably, the reaction pool comprises a plurality of the pool bodies, wherein the pool body is connected to an adjacent pool body on one side through a first hole, and the pool body is connected to an adjacent pool body on the other side through a second hole.

[0013] Preferably, the plurality of pool bodies are divided into three groups, the pool bodies of the first group constitute a first corridor, the pool bodies of the second group constitute a second corridor, and the pool bodies of the third group constitute a third corridor. Three groups of flocculation structures are arranged in the pool bodies of the first corridor, two groups of flocculation structures are arranged in the pool bodies (1) of the second corridor, and there are no flocculation structures in the pool bodies of the third corridor.

[0014] Preferably, the opening rates of the anode plates and cathode plates in the cell body of the first corridor are both 35%, and the opening rates of the anode plates and cathode plates in the cell body of the second corridor are both 40%.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a grid flocculation reaction tank with an electric flocculation function. After the raw water enters the tank body from the hole, it needs to pass through the mesh of the anode plate and the cathode plate before leaving from another hole, so that the raw water can fully contact the electrode plate. Under the action of an external power supply, the anode plate can undergo an oxidation reaction to generate metal ions, and the metal ions are hydrolyzed and polymerized to generate metal hydroxides and polyhydroxy complexes. These substances have strong adsorption activity and can quickly undergo flocculation reaction with the raw water. At the same time, the anode plate will produce a large amount of strong oxidizing substances such as hydroxyl free radicals, oxidize the algae cells in the raw water, and can more efficiently flocculate the algae in the raw water. Therefore, the grid flocculation reaction tank provided by the present invention realizes the flocculation function through the electric flocculation reaction without adding or adding less flocculant, which can save reagents and enhance the flocculation effect, greatly improving the treatment efficiency of turbidity and algae in the water body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the planar structure of a grid flocculation reaction tank with an electric flocculation function provided in an embodiment of the present invention; Figure 2 for Figure 1 Schematic cross-sectional view at AA in the middle; Figure 3 for Figure 1 A schematic cross-sectional view of the middle BB; Figure 4 A schematic diagram of a top view of an anode plate or a cathode plate of a grid flocculation reaction tank with an electric flocculation function provided in an embodiment of the present invention; Figure 5 A schematic diagram of the front view of the structure of a cell body of a grid flocculation reaction cell with an electric flocculation function provided in an embodiment of the present invention; Figure 6 A schematic diagram of the three-dimensional structure of a scraper and a mud bucket of a grid flocculation reaction tank with an electric flocculation function provided by an embodiment of the present invention; Figure 7 A schematic front view of the structure of a scraper and related parts of a grid flocculation reaction tank with an electric flocculation function provided by an embodiment of the present invention; Figure 8 A schematic diagram of the three-dimensional structure of a scraper element of a grid flocculation reaction tank with an electric flocculation function provided in an embodiment of the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Pool body; 2. The first hole; 3. Mud bucket; 4. Pool bottom valve; 5. Anode plate; 6. Cathode plate; 7. Second hole; 8. Scraper; 801. Bottom plate; 802. Cover plate; 803. End plate; 804. Guide plate; 805. Connecting plate; 9. Rotating shaft; 10. Driving mechanism; 11. Connecting rod. DETAILED DESCRIPTION

[0018] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0019] This embodiment provides a grid flocculation reaction tank with an electric flocculation function, comprising a tank body 1 , an anode plate 5 , and a cathode plate 6 .

[0020] The side wall of the pool body 1 is provided with a first hole 2 and a second hole 7 .

[0021] For example, see Figure 2, the four pool bodies 1 are connected in sequence. Take the rightmost pool body 1 as an example for explanation. A first hole 2 is provided on the right side wall of the pool body 1, and a second hole 7 is provided on the left side wall. The first hole 2 is higher than the second hole 7. The first hole 2 is a water inlet, and the second hole 7 is a water outlet.

[0022] The anode plate 5 is arranged in the cell body 1, the outer edge of the anode plate 5 is in contact with the inner wall of the cell body 1, and the anode plate 5 is provided with a mesh; the cathode plate 6 is arranged in the cell body 1, the outer edge of the cathode plate 6 is in contact with the inner wall of the cell body 1, and the cathode plate 6 is provided with a mesh, the anode plate 5 and the cathode plate 6 are arranged in parallel and spaced apart to form a flocculation structure together, and the first hole 2 and the second hole 7 are respectively located on the upper and lower sides of the flocculation structure.

[0023] For example, see Figure 2 , three anode plates 5 and three cathode plates 6 are arranged in the cell body 1, and the anode plates 5 correspond to the cathode plates 6 one by one, and the anode plates 5 and the corresponding cathode plates 6 are arranged in parallel and spaced apart to form a flocculation structure, that is, three groups of flocculation structures are arranged in the cell body 1. Among them, the anode plates 5 are electrically connected to the anode of the power supply, and the cathode plates 6 are electrically connected to the cathode of the power supply. And the anode plates 5 and the cathode plates 6 are both mesh structures, see Figure 4 .

[0024] Secondly, the outer edge of the anode plate 5 contacts the inner wall of the cell body 1 and is fixedly connected, so that the water flow above the anode plate 5 can only enter the lower part through the mesh of the anode plate 5. Similarly, the outer edge of the cathode plate 6 contacts the inner wall of the cell body 1 and is fixedly connected, so that the water flow above the cathode plate 6 can only enter the lower part through the mesh of the cathode plate 6. Thus, the raw water can fully flow through the flocculation structure.

[0025] Based on the above structure, in the technical solution provided by this embodiment, after the raw water enters the tank body 1 from the first hole 2, it needs to pass through the mesh of the anode plate 5 and the cathode plate 6 before it can leave from the second hole 7, so that the raw water can fully contact the electrode plate. After the power is turned on, under the action of the external power supply, the anode plate 5 can undergo an oxidation reaction to generate metal ions, and the metal ions are hydrolyzed and polymerized to generate metal hydroxides and polyhydroxy complexes. These substances have strong adsorption activity and can quickly react with the raw water to flocculate. At the same time, the anode plate 5 will produce a large amount of strong oxidizing substances such as hydroxyl radicals, oxidize the algae cells in the raw water, and can more efficiently flocculate the algae in the raw water. Therefore, the grid flocculation reaction tank provided by the present invention realizes the flocculation function through the electric flocculation reaction without adding or adding less flocculants, which can save reagents and enhance the flocculation effect, greatly improving the treatment efficiency of turbidity and algae in the water body.

[0026] It should be noted that the mesh size of the anode plate 5 and the cathode plate 6 is relatively large, so that impurities such as flocculation precipitation can pass through. Secondly, when precipitation accumulates at the non-mesh area of ​​the anode plate 5 or the cathode plate 6, the water flow can flush the accumulated precipitation away from the mesh area, ensuring the stable operation of the anode plate 5 and the cathode plate 6, and further ensuring the efficiency of the electric flocculation reaction.

[0027] On the basis of the above technical solution, in the technical solution provided in this embodiment, a mud bucket 3 may be provided at the bottom of the pool body 1 .

[0028] For example, see Figure 2 A funnel-shaped mud hopper 3 is provided at the bottom of the pool body 1, and the anode plate 5 and the cathode plate 6 are both located above the mud hopper 3, so that the sediment in the pool body 1 can be collected through the mud hopper 3.

[0029] Furthermore, a pool bottom valve 4 is provided at the bottom of the mud hopper 3, and the pool bottom valve 4 is connected to a mud discharge pipe.

[0030] For example, see Figure 2 A mud discharge pipe is provided at the bottom of the pool body 1, the top of which passes through the bottom plate of the pool body 1 and extends to the bottom of the mud hopper 3, and a pool bottom valve 4 is provided at the top of the mud discharge pipe, and the bottom of the mud discharge pipe is connected to the mud discharge main pipe. When the sediment accumulated in the mud hopper 3 needs to be discharged, the sediment can enter the mud discharge pipe through the pool bottom valve 4 and finally enter the mud discharge main pipe for discharge by opening the pool bottom valve 4.

[0031] In the technical solution provided in this embodiment, both the anode plate 5 and the cathode plate 6 can be arranged horizontally.

[0032] For example, see Figure 2 Since the cross-sectional area of ​​the cell body 1 is fixed, the outer edge of the anode plate 5 contacts the inner wall of the cell body 1, and the anode plate 5 has the smallest size when it is horizontally arranged. Similarly, the cathode plate 6 has the smallest size when it is horizontally arranged.

[0033] In the technical solution provided in this embodiment, the anode plate 5 can be an aluminum plate, and the cathode plate 6 can be a stainless steel plate.

[0034] When the anode plate 5 is an aluminum plate, an oxidation reaction may occur under the action of an external power source to generate Al 3+ , Al 3+ After hydrolysis and polymerization, metal hydroxides and polyhydroxy complexes are generated. These substances have strong adsorption activity and can quickly undergo flocculation reactions.

[0035] In the technical solution provided in this embodiment, the thickness of the anode plate 5 and the cathode plate 6 are both 2±0.5 mm, and the distance between the anode plate 5 and the cathode plate 6 is 20±5 mm.

[0036] The larger the distance between the anode plate 5 and the cathode plate 6, the greater the power required and the worse the flocculation efficiency. However, this embodiment only uses a relatively small power source to carry out the electro-flocculation reaction, thus effectively saving power.

[0037] In the technical solution provided in this embodiment, the reaction pool may include multiple pool bodies 1, and the pool body 1 is connected to the adjacent pool body 1 on one side through the first hole 2, and the pool body 1 is connected to the adjacent pool body 1 on the other side through the second hole 7.

[0038] For example, see Figure 1 The reaction pool includes twenty pool bodies 1, which are arranged in a matrix and connected in sequence. Since the first holes 2 are higher than the second holes 7, the connection points of the twenty pool bodies 1 are arranged alternately in high and low positions.

[0039] The multiple pool bodies 1 are divided into three groups. The first group of pool bodies 1 constitutes a first corridor, the second group of pool bodies 1 constitutes a second corridor, and the third group of pool bodies 1 constitutes a third corridor. Three groups of flocculation structures are arranged in the pool bodies 1 of the first corridor, two groups of flocculation structures are arranged in the pool bodies 1 of the second corridor, and there is no flocculation structure in the pool bodies 1 of the third corridor.

[0040] For example, see Figure 1 The reaction pool includes twenty cell bodies 1, which are arranged in five rows from top to bottom, and each row includes four cell bodies 1. Each row of cell bodies 1 is connected in sequence, such as Figure 2-3 As shown, the raw water flows through the first row, the second row, the third row, the fourth row, and the fifth row in sequence. The first and second rows of tank bodies 1 constitute the first corridor, the third and fourth rows of tank bodies 1 constitute the second corridor, and the fifth row of tank bodies 1 constitute the third corridor. The raw water flows through the first corridor, the second corridor, and the third corridor in sequence.

[0041] See also Figure 2 Three anode plates 5 and three cathode plates 6 are arranged in the cell body 1 of the first corridor. The anode plates 5 correspond to the cathode plates 6 one by one, and the anode plates 5 and the corresponding cathode plates 6 are arranged in parallel and at intervals.

[0042] See also Figure 3 Two anode plates 5 and two cathode plates 6 are arranged in the cell body 1 of the second corridor. The anode plates 5 correspond to the cathode plates 6 one by one, and the anode plates 5 and the corresponding cathode plates 6 are arranged in parallel and at intervals.

[0043] There are no anode plates 5 and cathode plates 6 in the tank body 1 of the third corridor. This is because the water quality in the water flow will become better and better, thereby reducing the subsequent treatment facilities in the tank body 1.

[0044] The opening rates of the anode plate 5 and the cathode plate 6 in the cell body 1 of the first corridor are both 35%, and the opening rates of the anode plate 5 and the cathode plate 6 in the cell body 1 of the second corridor are both 40%.

[0045] In the technical solution provided in this embodiment, the reaction tank also includes a sludge scraping mechanism.

[0046] The mud scraping mechanism comprises a mud scraping member 8 , a rotating shaft 9 , a driving mechanism 10 , and a connecting rod 11 .

[0047] The scraper 8 is fitted with the inner wall of the mud bucket 3, the shaft 9 is rotatably arranged in the pool body 1, the shaft 9 is coaxial with the mud bucket 3, the scraper 8 is connected with the shaft 9 through a connecting rod 11, and the driving mechanism 10 is used to drive the shaft 9 to rotate.

[0048] For example, see Figure 5 A mounting frame is provided at the top of the side wall of the tank body 1, and a rotating hole is provided on the mounting frame. The rotating shaft 9 is rotatably arranged in the rotating hole through a bearing. The driving mechanism 10 is a motor, and the driving mechanism 10 is arranged on the mounting frame. The power output end of the driving mechanism 10 is coaxially fixed with the rotating shaft 9. One end of the connecting rod 11 is fixedly connected to the rotating shaft 9, and the other end of the connecting rod 11 is fixedly connected to the scraper 8.

[0049] The rotating shaft 9 can directly pass through the mesh of the anode plate 5 and the cathode plate 6. For the rotating shaft 9 with a larger diameter, the anode plate 5 and the cathode plate 6 can be provided with a through hole for the rotating shaft 9 to pass through, so as to avoid interference between the rotating shaft 9 and the electrode plate.

[0050] Based on the above structure, the power output end of the driving mechanism 10 rotates, driving the rotating shaft 9 to rotate, and then driving the connecting rod 11 to rotate around the rotating shaft 9, and then driving the mud scraper 8 to rotate around the rotating shaft 9, so that the mud scraper 8 can move along the inner wall of the mud bucket 3, and then scrape up the sludge attached to the inner wall of the mud bucket 3, so that the sludge finally flows to the bottom of the mud bucket 3, and the sludge is fully discharged.

[0051] When there is a lot of sludge deposited at a higher position on the inner wall of the mud bucket 3, this part of the sludge may affect the water quality of the water flow and needs to be treated in time. At this time, if scraping is performed directly, it may affect the water quality of the water flow in the pool body 1. In order to avoid the above situation. In the technical solution provided in this embodiment, the scraper 8 includes a bottom plate 801, a cover plate 802, and an end plate 803.

[0052] The bottom plate 801 is fitted with the inner wall of the mud bucket 3, the cover plate 802 is arranged parallel to the bottom plate 801 and spaced apart, and the cover plate 802 is located above the bottom plate 801, the bottom end of the end plate 803 is fixed to the top end of the bottom plate 801, and the top end of the end plate 803 is fixed to the top end of the cover plate 802.

[0053] For example, see Figure 6-7, the bottom plate 801 is arranged along the inner wall of the mud bucket 3, and the top of the bottom plate 801 extends to the top of the inner wall of the mud bucket 3. When the scraper 8 moves along the inner wall of the mud bucket 3, the bottom plate 801 can scrape up the sludge attached to the inner wall of the mud bucket 3, and the cover plate 802 and the end plate 803 can play an interception role to prevent the scraped up sludge from rising quickly to a higher place, thereby affecting the water quality of the water flow. Moreover, the cover plate 802 and the end plate 803 will not occupy a large space and affect other facilities. That is, during the scraping process, the scraper 8 provided in this embodiment can ensure that the scraped up sludge will not affect the water quality of the water flow in the pool body 1, nor will it splash to a higher position, or even adhere to the inner wall of the mud bucket 3 at a higher position.

[0054] The surfaces of the bottom plate 801 and the cover plate 802 are both smooth surfaces. For example, when the scraped mud falls on the upper surface of the bottom plate 801, it can quickly slide along the upper surface of the bottom plate 801 to the bottom of the mud bucket 3.

[0055] In the technical solution provided in this embodiment, the scraper 8 also includes a guide plate 804 .

[0056] The guide plate 804 gradually moves away from the bottom plate 801 from the top to the bottom, that is, the guide plate 804 is tilted relative to the bottom plate 801. The guide plate 804 is fixedly connected to the bottom plate 801 and the cover plate 802 through the connecting plate 805 respectively.

[0057] For example, see Figure 8 The guide plate 804 is located at the rear side of the bottom plate 801, and the guide plate 804 is fixedly connected to the bottom plate 801 through the lower connecting plate 805, and the lower connecting plate 805 is parallel to the bottom plate 801. The guide plate 804 is fixedly connected to the cover plate 802 through the upper connecting plate 805, and the upper connecting plate 805 is parallel to the cover plate 802.

[0058] During the rotation, the bottom plate 801 scrapes up the sludge, and the cover plate 802, the end plate 803 and the upper connecting plate 805 together play an intercepting role to prevent the sludge from rising quickly. The guide plate 804 plays a guiding role. After the sludge hits the guide plate 804, it can flow along the guide plate 804 to the bottom of the mud bucket 3. It can be understood that the scraper 8 is a shell structure with front and bottom openings. During the scraping process of the scraper 8, the sludge at the front end can be scraped up and discharged through the bottom opening, so that the sludge can flow quickly and accurately to the bottom of the mud bucket 3, thereby improving the scraping efficiency.

[0059] Wherein, the guide plate 804 and the connecting plate 805 are all smooth surfaces. For example, when the sludge swept up falls on the upper surface of the connecting plate 805, it can quickly slide down to the bottom of the mud bucket 3 along the upper surface of the connecting plate 805.

[0060] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0063] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A grid flocculation reaction tank with electric flocculation function, characterized in that: It comprises a cell body (1), an anode plate (5), and a cathode plate (6); The side wall of the pool body (1) is provided with a first hole (2) and a second hole (7); The anode plate (5) is arranged in the cell body (1), the outer edge of the anode plate (5) abuts against the inner wall of the cell body (1), and the anode plate (5) is provided with mesh holes; The cathode plate (6) is arranged in the cell body (1), the outer edge of the cathode plate (6) abuts against the inner wall of the cell body (1), the cathode plate (6) is provided with mesh holes, the anode plate (5) and the cathode plate (6) are arranged in parallel and spaced apart to form a flocculation structure, and the first hole (2) and the second hole (7) are respectively located on the upper and lower sides of the flocculation structure.

2. The grid flocculation reaction tank with electric flocculation function according to claim 1, characterized in that: A mud bucket (3) is provided at the bottom of the pool body (1).

3. The grid flocculation reaction tank with electric flocculation function according to claim 2, characterized in that: A pool bottom valve (4) is provided at the bottom of the mud hopper (3), and the pool bottom valve (4) is connected to a mud discharge pipe.

4. The grid flocculation reaction tank with electric flocculation function according to claim 1, characterized in that: The anode plate (5) and the cathode plate (6) are both arranged horizontally.

5. The grid flocculation reaction tank with electric flocculation function according to claim 1, characterized in that: The anode plate (5) is an aluminum plate, and the cathode plate (6) is a stainless steel plate.

6. The grid flocculation reaction tank with electric flocculation function according to claim 1, characterized in that: The thickness of the anode plate (5) and the cathode plate (6) are both 2±0.5 mm.

7. The grid flocculation reaction tank with electric flocculation function according to claim 1, characterized in that: The distance between the anode plate (5) and the cathode plate (6) is 20±5 mm.

8. The grid flocculation reaction tank with electric flocculation function according to claim 1, characterized in that: The reaction pool comprises a plurality of pool bodies (1), wherein the pool body (1) is connected to an adjacent pool body (1) on one side via a first hole (2), and the pool body (1) is connected to an adjacent pool body (1) on the other side via a second hole (7).

9. The grid flocculation reaction tank with electric flocculation function according to claim 8, characterized in that: The plurality of tank bodies (1) are divided into three groups, the tank bodies (1) of the first group constitute a first corridor, the tank bodies (1) of the second group constitute a second corridor, and the tank bodies (1) of the third group constitute a third corridor. The tank bodies (1) of the first corridor are provided with three groups of flocculation structures, the tank bodies (1) of the second corridor are provided with two groups of flocculation structures, and the tank bodies (1) of the third corridor have no flocculation structures.

10. The grid flocculation reaction tank with electric flocculation function according to claim 9, characterized in that: The opening rates of the anode plates (5) and cathode plates (6) in the cell body (1) of the first corridor are both 35%, and the opening rates of the anode plates (5) and cathode plates (6) in the cell body (1) of the second corridor are both 40%.

Images