Electrochemical treatment equipment for desulfurization wastewater

Abstract

The utility model relates to electrochemical treatment equipment for desulfurization wastewater, and relates to the technical field of desulfurization wastewater treatment.The electrochemical treatment equipment comprises a treatment box, a liquid inlet pipe, a rotating shaft, an anode fan blade and a cathode fan blade, the liquid inlet pipe communicates with the lower middle portion of the side wall of the treatment box, and the rotating shaft is rotationally connected into the treatment box; the multiple anode fan blades and the multiple cathode fan blades are arranged around the rotating shaft, the anode fan blades and the cathode fan blades are in one-to-one correspondence, the anode fan blades and the cathode fan blades are connected to the rotating shaft and provided with multiple through filter holes, and the anode fan blades and the cathode fan blades are located on the side, away from the bottom end of the treatment box, of the liquid inlet pipe. The anode fan blades and the cathode fan blades are used for forming water flow in the treatment box body when rotating along with the rotating shaft, when the water flow flows to the top end of the treatment box body, the treatment efficiency of the desulfurization wastewater can be improved, and when the water flow flows to the bottom end of the treatment box body, the anode fan blades and the cathode fan blades can be washed. The device has the effect that the filtering holes of the anode fan blades and the cathode fan blades are not prone to being blocked.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of desulfurization wastewater treatment, and particularly relates to an electrochemical treatment equipment for desulfurization wastewater. BACKGROUND

[0002] Desulfurization wastewater is wastewater generated in a wet desulfurization process, and contains suspended solids, supersaturated sulfite, sulfate and heavy metals, and belongs to the first type of pollutants strictly controlled in the national environmental protection standard. Desulfurization wastewater needs to be treated before being discharged. At present, the treatment effect of the electric flocculation technology is the most outstanding.

[0003] The existing electrochemical treatment device for implementing the electric flocculation technology comprises an electrolytic cell, a cathode plate and an anode plate. Oxidation reaction is carried out at the anode plate, and reduction reaction is carried out at the cathode plate, so as to realize the electric flocculation treatment of the desulfurization wastewater.

[0004] In order to enable the anode plate and the cathode plate to be fully contacted with the desulfurization wastewater, the anode plate and the cathode plate are usually arranged in a filter screen structure, so that the desulfurization wastewater can be fully reacted when flowing through the anode plate and the cathode plate. However, the anode plate and the cathode plate in the filter screen structure are prone to be blocked. CONTENT OF THE INVENTION

[0005] In order to prevent the anode plate and the cathode plate in the filter screen structure from being blocked, the present application provides an electrochemical treatment equipment for desulfurization wastewater.

[0006] The present application provides an electrochemical treatment equipment for desulfurization wastewater, which adopts the following technical scheme:

[0007] The electrochemical treatment equipment for desulfurization wastewater comprises a treatment box body, a liquid inlet pipe, a rotating shaft, anode fan blades and cathode fan blades. The liquid inlet pipe is connected to the middle-lower part of the side wall of the treatment box body and is used for introducing the desulfurization wastewater. The desulfurization wastewater is overflowed and discharged from the top of the treatment box body after being treated. The rotating shaft is rotationally connected in the treatment box body. The anode fan blades and the cathode fan blades are arranged in multiple numbers around the axis direction of the rotating shaft. The anode fan blades correspond to the cathode fan blades one by one. The anode fan blades and the cathode fan blades are connected to the rotating shaft and are provided with multiple through filter holes. The anode fan blades and the cathode fan blades are located on the side of the liquid inlet pipe away from the bottom end of the treatment box body. The anode fan blades and the cathode fan blades are used for forming water flow in the treatment box body when the rotating shaft rotates. When the water flow flows to the top end of the treatment box body, the treatment efficiency of the desulfurization wastewater can be accelerated. When the water flow flows to the bottom end of the treatment box body, the anode fan blades and the cathode fan blades can be washed.

[0008] Optionally, the rotating shaft is connected with a speed reducer, the speed reducer is connected with a motor, the motor is electrically connected with a controller, and the controller is used for controlling the motor to switch the direction of rotation at a regular time.

[0009] Optionally, the cathode fan blade is located between the anode fan blade and the liquid inlet pipe, and a filter screen is arranged between the cathode fan blade and the liquid inlet pipe, and the filter screen is used for filtering large-particle impurities in the desulfurization wastewater.

[0010] Optionally, a flocculation tank is communicated with the treatment box, an intercepting filter screen is arranged in the flocculation tank, a communication pipe is communicated between the bottom end of the flocculation tank and the treatment box, and the flocculation tank is used for collecting flocculation generated on the side of the filter screen close to the cathode fan blade.

[0011] Optionally, the filter screen is conical, and the bottom end of the filter screen is flush with the bottom end of the communication part of the flocculation tank and the treatment box.

[0012] Optionally, the communication part of the flocculation tank and the treatment box is provided opposite with two parts, a reverse stopping assembly is connected to the rotating shaft, the reverse stopping assembly comprises a first magnetic ring embedded on the rotating shaft, a second magnetic ring is rotatably sleeved on the first magnetic ring, the first magnetic ring and the second magnetic ring are magnetically connected, two first connecting rods are symmetrically connected to the second magnetic ring, the first connecting rods are connected with reverse stopping plates, the reverse stopping plates are slidingly arranged on the inner wall of the treatment box, the two reverse stopping plates correspond to the two communication parts of the flocculation tank and the treatment box, the reverse stopping plates are used for closing the communication parts of the flocculation tank and the treatment box in the sliding process, and first and second limiting plates are arranged at both ends of the sliding stroke of the reverse stopping plates.

[0013] Optionally, the bottom end of the treatment box is in a necked shape, and a sediment tank is communicated with the bottom end, and the sediment tank is used for collecting large-particle impurities in the desulfurization wastewater.

[0014] Optionally, a scraper is connected to the rotating shaft, and one side of the scraper abuts against the necked bottom end of the treatment box.

[0015] Optionally, an overflow liquid tank is communicated with the top of the treatment box, a liquid outlet pipe is communicated with the bottom end of the overflow liquid tank, the liquid outlet pipe is used for discharging the treated desulfurization wastewater, and an overflow filter screen is arranged at the communication part of the overflow liquid tank and the treatment box.

[0016] Optionally, a second connecting rod is connected to the rotating shaft, and a scraper blade is connected to the second connecting rod, and one side of the scraper blade abuts against the overflow filter screen.

[0017] In summary, the present application has at least one of the following beneficial technical effects:

[0018] 1. The electrochemical treatment equipment for desulfurization wastewater of the application comprises a treatment box, a liquid inlet pipe, a rotating shaft, an anode fan blade and a cathode fan blade, wherein the anode fan blade and the cathode fan blade can form a water flow in the treatment box when rotating with the rotating shaft, when the water flow flows to the top end of the treatment box, the desulfurization wastewater around the anode fan blade and the cathode fan blade can accelerate to flow through the filter holes, so as to accelerate the treatment of the desulfurization wastewater, when the water flow flows to the bottom end of the treatment box, the desulfurization wastewater can flush the filter holes of the anode fan blade and the cathode fan blade, so that the filter holes of the anode fan blade and the cathode fan blade are not easy to be blocked.

[0019] 2. The electrochemical treatment equipment for desulfurization wastewater of the application further comprises a flocculent tank and a non-return assembly, wherein the non-return plate can rotate with the rotating shaft, when the water flow flows to the top end of the treatment box, the non-return plate can close the communication between the flocculent tank and the treatment box, when the water flow flows to the bottom end of the treatment box, the non-return plate can open the communication between the flocculent tank and the treatment box, so that the flocculent is not easy to flow back into the treatment box after entering the flocculent tank. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of an embodiment of the application;

[0021] Figure 2 is a sectional view of an embodiment of the application;

[0022] Figure 3 is Figure 2 is an enlarged view of A in

[0023] Figure 4 is a structural schematic diagram of a first limiting plate and a second limiting plate.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 1, treatment box; 11, sediment tank; 2, liquid inlet pipe; 3, rotating shaft; 31, speed reducer; 32, motor; 33, controller; 34, second connecting rod; 35, scraper; 36, scraper plate; 4, anode fan blade; 41, filter hole; 5, cathode fan blade; 6, filter screen; 7, flocculent tank; 71, intercepting filter screen; 72, communication pipe; 8, non-return assembly; 81, first magnetic ring; 82, second magnetic ring; 83, first connecting rod; 84, non-return plate; 85, first limiting plate; 86, second limiting plate; 9, overflow tank; 91, liquid outlet pipe; 92, overflow filter screen. DETAILED DESCRIPTION

[0026] The following will be described in detail in combination with the accompanying Figures 1-4 The application will be further described in detail.

[0027] The embodiment of the application discloses an electrochemical treatment equipment for desulfurization wastewater. Referring to Figure 1 and Figure 2The utility model provides an electrochemical treatment equipment of desulfurization wastewater, including processing box 1, inlet pipe 2, rotating shaft 3, anode fan blade 4 and cathode fan blade 5.

[0028] Refer to Figure 2 Processing box 1 is circular box shape, and is vertically arranged, inlet pipe 2 is connected on the middle lower part of the lateral wall of processing box 1, and is used to pass into desulfurization wastewater, and desulfurization wastewater is overflowed and discharged from the top of processing box 1 after treatment.

[0029] Rotating shaft 3 is rotatably connected in processing box 1, anode fan blade 4 and cathode fan blade 5 are all arranged with multiple around the axis direction of rotating shaft 3, anode fan blade 4 and cathode fan blade 5 correspond one by one, anode fan blade 4 and cathode fan blade 5 are all fixedly connected on rotating shaft 3, and all are provided with multiple filter holes 41, and filter hole 41 can play the role of filtering and improving reaction contact effect.

[0030] Anode fan blade 4 and cathode fan blade 5 are all located on the side, away from the bottom end of processing box 1, of inlet pipe 2, and anode fan blade 4 and cathode fan blade 5 are used to form water flow in processing box 1 when rotating shaft 3 rotates, when water flow flows to the top end of processing box 1, can accelerate the treatment efficiency of desulfurization wastewater, when water flow flows to the bottom end of processing box 1, can flush anode fan blade 4 and cathode fan blade 5.

[0031] When using, desulfurization wastewater is passed into processing box 1 from inlet pipe 2, and desulfurization wastewater can be overflowed and discharged from the top of processing box 1 after treatment, and anode fan blade 4 and cathode fan blade 5 are used to carry out electrochemical treatment on desulfurization wastewater after being electrified, rotating shaft 3 can drive anode fan blade 4 and cathode fan blade 5 to rotate by rotating anode fan blade 4 and cathode fan blade 5 in the positive direction, at this time, anode fan blade 4 and cathode fan blade 5 can drive desulfurization wastewater to form water flow flowing to the top end of processing box 1, make desulfurization wastewater accelerate to flow through filter hole 41, make the reacted desulfurization wastewater accelerate to overflow, and make the unreacted desulfurization wastewater accelerate to flow to anode fan blade 4 and cathode fan blade 5, thereby accelerating the treatment efficiency of desulfurization wastewater, rotating shaft 3 can drive anode fan blade 4 and cathode fan blade 5 to reverse rotation by rotating anode fan blade 4 and cathode fan blade 5 in the reverse direction, at this time, anode fan blade 4 and cathode fan blade 5 can drive desulfurization wastewater to form water flow flowing to the bottom end of processing box 1, make desulfurization wastewater can reverse flush anode fan blade 4 and cathode fan blade 5, to make filter hole 41 of anode fan blade 4 and cathode fan blade 5 not easy to be blocked, thereby under the premise that desulfurization wastewater can carry out sufficient reaction, anode fan blade 4 and cathode fan blade 5 that are provided with filter hole 41 are not easy to be blocked.

[0032] Refer to Figure 2, in order to facilitate the drive anode fan blade 4 and cathode fan blade 5 positive and negative rotation, rotating shaft 3 rotating through the top of the treatment box 1, rotating shaft 3 is connected with the reducer 31, the reducer 31 is installed on the top of the treatment box 1 outside, the reducer 31 is connected with the motor 32, the motor 32 is installed on the top of the treatment box 1 outside, the motor 32 is electrically connected with the controller 33, the controller 33 is fixed on the top of the treatment box 1, the controller 33 is used for controlling the motor 32 timing switch steering.

[0033] The controller 33 controls the rotation direction of the motor 32 for timing switching, the motor 32 drives the rotating shaft 3 to rotate through the reducer 31, under the control of the controller 33, the motor 32 can drive the rotating shaft 3 to rotate alternately, so that the anode fan blade 4 and the cathode fan blade 5 are easy to rotate.

[0034] Referring to Figure 2 , in order to intercept the large particles of sewage wastewater, the cathode fan blade 5 is located between the anode fan blade 4 and the liquid inlet pipe 2, the filter screen 6 is arranged between the cathode fan blade 5 and the liquid inlet pipe 2, the filter screen 6 is fixedly connected with the inner wall of the treatment box 1, the filter screen 6 is used for filtering the large particles of sewage wastewater, the filter screen 6 can prevent the large particles of sewage wastewater from contacting the anode fan blade 4 and the cathode fan blade 5, so that the anode fan blade 4 and the cathode fan blade 5 are not easy to be blocked, at the same time, the water flow formed by the reverse rotation of the anode fan blade 4 and the cathode fan blade 5 can also wash the filter screen 6, so as to prevent the filter screen 6 from being blocked.

[0035] Referring to Figure 2 , the flocculation generated by the electrochemical reaction will be intercepted by the filter screen 6 and cannot be deposited at the bottom of the treatment box 1, in order to collect the flocculation generated by the electrochemical reaction, the treatment box 1 is communicated with the flocculation tank 7, the intercepting filter screen 71 is fixedly arranged in the flocculation tank 7, the communication pipe 72 is communicated between the bottom of the flocculation tank 7 and the treatment box 1, the flocculation tank 7 is used for collecting the flocculation generated on the side of the filter screen 6 close to the cathode fan blade 5.

[0036] The generated flocculation can flow into the flocculation tank 7 with the water flow, the sewage wastewater flows back to the treatment box 1 from the communication pipe 72 through the intercepting filter screen 71, the flocculation is intercepted by the intercepting filter screen 71 in the flocculation tank 7, so that the flocculation above the filter screen 6 is not easy to accumulate too much to affect the electrochemical treatment process of the sewage wastewater.

[0037] Referring to Figure 2 , in order to make the flocculation easy to enter the flocculation tank 7, the filter screen 6 is designed in a conical shape, the bottom end of the filter screen 6 is flush with the bottom end of the communication part of the flocculation tank 7 and the treatment box 1, under the inclined guiding action of the filter screen 6, the flocculation can flow into the flocculation tank 7 obliquely, so that the flocculation tank 7 is easy to collect the flocculation.

[0038] Referring toFigure 2 、 Figure 3 and Figure 4 , in order to make the water flow in the flow to the top of the treatment tank 1 not easy to drive the flocculation tank 7 in the flocculation material backflow into the treatment tank 1, the communication between the flocculation tank 7 and the treatment tank 1 is provided with two places, the rotating shaft 3 is connected with the reverse stop assembly 8, the reverse stop assembly 8 includes a first magnetic ring 81 fixedly embedded on the rotating shaft 3, a second magnetic ring 82 is rotatably sleeved on the first magnetic ring 81, the first magnetic ring 81 and the second magnetic ring 82 are magnetically connected, the second magnetic ring 82 is symmetrically and fixedly connected with two first connecting rods 83, the first connecting rod 83 is fixedly connected with a reverse stop plate 84, the reverse stop plate 84 is slidably arranged on the inner wall of the treatment tank 1, the two reverse stop plates 84 correspond to the two communication places between the flocculation tank 7 and the treatment tank 1, the reverse stop plate 84 is used to close the communication between the flocculation tank 7 and the treatment tank 1 in the sliding process, the two ends of the sliding stroke of the reverse stop plate 84 are respectively provided with a first limiting plate 85 and a second limiting plate 86, when the water flow flows to the top of the treatment tank 1, the reverse stop plate 84 abuts against the first limiting plate 85, at this time the reverse stop plate 84 closes the communication between the flocculation tank 7 and the treatment tank 1, when the water flow flows to the bottom of the treatment tank 1, the reverse stop plate 84 abuts against the second limiting plate 86, at this time the reverse stop plate 84 opens the communication between the flocculation tank 7 and the treatment tank 1.

[0039] When the rotating shaft 3 rotates in the positive direction, so that the water flow flows to the top of the treatment tank 1, the rotating shaft 3 can drive the first magnetic ring 81 to rotate, the first magnetic ring 81 magnetically drives the second magnetic ring 82 to rotate, the second magnetic ring 82 drives the reverse stop plate 84 to slide through the first connecting rod 83, so that the reverse stop plate 84 abuts against the first limiting plate 85, after the reverse stop plate 84 abuts against the first limiting plate 85, the rotating shaft 3 drives the first magnetic ring 81 to rotate relative to the second magnetic ring 82, so that the communication between the flocculation tank 7 and the treatment tank 1 can be in a closed state, so that the flocculation material in the flocculation tank 7 is not easy to backflow into the treatment tank 1; on the contrary, when the rotating shaft 3 reverses, the reverse stop plate 84 can open the communication between the flocculation tank 7 and the treatment tank 1, so that the flocculation material can flow into the flocculation tank 7.

[0040] Referring to Figure 2 , in order to facilitate the centralized collection of large particle dirt, the bottom end of the treatment tank 1 is in the shape of a neck, and is communicated with a sediment tank 11, the sediment tank 11 is used to collect large particle dirt in the desulfurization wastewater, the neck-shaped bottom end of the treatment tank 1 can guide the large particle dirt to flow into the sediment tank 11, so that the large particle dirt can be conveniently collected in the sediment tank 11.

[0041] Referring to Figure 2In order to prevent large particles from adhering to the bottom end of the neck of the treatment box 1, a scraper 34 is fixed to the rotating shaft 3, one side of the scraper 34 abuts against the bottom end of the neck of the treatment box 1, and the scraper 34 can rotate with the rotating shaft 3. When the scraper 34 rotates, the scraper 34 can scrape the large particles deposited on the bottom end of the neck of the treatment box 1, so that the large particles are not easily adhered to the bottom end of the neck of the treatment box 1.

[0042] Referring to Figure 2 In order to facilitate the overflow of the treated desulfurization wastewater, an overflow tank 9 is communicated with the top of the treatment box 1, the bottom end of the overflow tank 9 is communicated with a liquid outlet pipe 91, the liquid outlet pipe 91 is used to discharge the treated desulfurization wastewater, and the overflow tank 9 is provided with an overflow filter screen 92 at the communication position with the treatment box 1.

[0043] The treated desulfurization wastewater can flow into the overflow tank 9 through the overflow filter screen 92, the overflow tank 9 collects the overflowed desulfurization wastewater, so that the overflowed desulfurization wastewater can be concentrated and discharged from the liquid outlet pipe 91, and the overflowed desulfurization wastewater can be conveniently collected and concentrated, and the overflow filter screen 92 can filter the overflowed desulfurization wastewater to improve the quality of the overflowed desulfurization wastewater.

[0044] Referring to Figure 2 In order to facilitate the cleaning of the overflow filter screen 92, a second connecting rod 35 is fixed to the rotating shaft 3, the second connecting rod 35 is fixed with a scraper 36, one side of the scraper 36 abuts against the overflow filter screen 92, and the scraper 36 can rotate with the rotating shaft 3 through the second connecting rod 35. The scraper 36 can scrape off the impurities on the overflow filter screen 92 when it rotates, so that the overflow filter screen 92 is not easily blocked.

[0045] The implementation principle of the electrochemical treatment equipment for desulfurization wastewater is as follows: in use, under the control of the controller 33, the motor 32 drives the rotating shaft 3 to rotate through the speed reducer 31, the rotating shaft 3 drives the anode fan blade 4 and the cathode fan blade 5 to rotate, so that the water flow can alternately flow to the top end and the bottom end of the treatment box 1. When the water flow flows to the top end of the treatment box 1, the treatment of the desulfurization wastewater can be accelerated, and when the water flow flows to the bottom end of the treatment box 1, the anode fan blade 4 and the cathode fan blade 5 can be washed. Therefore, under the premise that the desulfurization wastewater can be fully reacted, the anode fan blade 4 and the cathode fan blade 5 provided with the filter holes 41 are not easily blocked.

[0046] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, and therefore: any equivalent changes made on the basis of the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An apparatus for electrochemical treatment of desulfurization wastewater, characterized by: The application relates to a desulfurization wastewater treatment device which comprises a treatment box (1), a liquid inlet pipe (2), a rotating shaft (3), anode blades (4) and cathode blades (5), the liquid inlet pipe (2) is communicated on the middle and lower part of the side wall of the treatment box (1) and is used for feeding desulfurization wastewater, the desulfurization wastewater is overflowed and discharged from the top of the treatment box (1) after treatment, the rotating shaft (3) is rotationally connected in the treatment box (1), the anode blades (4) and the cathode blades (5) are arranged in multiple numbers around the axis direction of the rotating shaft (3), the anode blades (4) and the cathode blades (5) are in one-to-one correspondence, the anode blades (4) and the cathode blades (5) are connected on the rotating shaft (3) and are provided with multiple through filter holes (41), the anode blades (4) and the cathode blades (5) are located on the side, away from the bottom end of the treatment box (1), of the liquid inlet pipe (2), the anode blades (4) and the cathode blades (5) are used for forming water flow in the treatment box (1) when the rotating shaft (3) rotates, the treatment efficiency of the desulfurization wastewater can be accelerated when the water flow flows to the top end of the treatment box (1), and the anode blades (4) and the cathode blades (5) can be washed when the water flow flows to the bottom end of the treatment box (1).

2. The apparatus for electrochemical treatment of desulfurization wastewater according to claim 1, characterized in that: The rotating shaft (3) is connected with a speed reducer (31), the speed reducer (31) is connected with a motor (32), the motor (32) is electrically connected with a controller (33), and the controller (33) is used for controlling the motor (32) to switch the rotating direction at regular time intervals.

3. The device for electrochemical treatment of desulfurization wastewater according to claim 1, characterized in that: The cathode blades (5) are located between the anode blades (4) and the liquid inlet pipe (2), a filter screen (6) is arranged between the cathode blades (5) and the liquid inlet pipe (2), and the filter screen (6) is used for filtering large-particle impurities in the desulfurization wastewater.

4. The apparatus for electrochemical treatment of desulfurization wastewater according to claim 3, characterized in that: A flocculating material tank (7) is communicated on the treatment box (1), an intercepting filter screen (71) is arranged in the flocculating material tank (7), a communication pipe (72) is communicated between the bottom end of the flocculating material tank (7) and the treatment box (1), and the flocculating material tank (7) is used for collecting flocculating materials generated on the side, close to the cathode blades (5), of the filter screen (6).

5. The apparatus for electrochemical treatment of desulfurization wastewater according to claim 4, characterized in that: The filter screen (6) is conical, and the bottom end of the filter screen (6) is flush with the bottom end of the communication position of the flocculating material tank (7) and the treatment box (1).

6. The device for electrochemical treatment of desulfurization wastewater according to claim 5, characterized in that: The communication between the flocculation tank (7) and the treatment box (1) is opposite to two places, the rotating shaft (3) is connected with the reverse stop assembly (8), the reverse stop assembly (8) includes the first magnetic ring (81) embedded on the rotating shaft (3), the first magnetic ring (81) is rotatably connected with the second magnetic ring (82), the first magnetic ring (81) and the second magnetic ring (82) are magnetically connected, the second magnetic ring (82) is symmetrically connected with two first connecting rods (83), the first connecting rod (83) is connected with the reverse stop plate (84), the reverse stop plate (84) is slidably arranged on the inner wall of the treatment box (1), two reverse stop plates (84) correspond to the two communication places between the flocculation tank (7) and the treatment box (1), the reverse stop plate (84) is used for closing the communication between the flocculation tank (7) and the treatment box (1) in the sliding process, the two ends of the reverse stop plate (84) are respectively provided with the first limiting plate (85) and the second limiting plate (86), when the water flows to the top end of the treatment box (1), the reverse stop plate (84) abuts against the first limiting plate (85), at this time, the reverse stop plate (84) closes the communication between the flocculation tank (7) and the treatment box (1), when the water flows to the bottom end of the treatment box (1), the reverse stop plate (84) abuts against the second limiting plate (86), at this time, the reverse stop plate (84) opens the communication between the flocculation tank (7) and the treatment box (1).

7. The device for electrochemical treatment of desulfurization wastewater according to claim 3, characterized in that: The bottom end of the treatment box (1) is in the shape of a neck, and is communicated with a sediment tank (11), the sediment tank (11) is used for collecting large particles of dirt in the desulfurization wastewater.

8. The device for electrochemical treatment of desulfurization wastewater according to claim 7, characterized in that: The rotating shaft (3) is connected with a scraper (34), one side of the scraper (34) abuts against the necked bottom end of the treatment box (1).

9. The device for electrochemical treatment of desulfurization wastewater according to claim 1, characterized in that: The top of the treatment box (1) is communicated with an overflow liquid tank (9), the bottom end of the overflow liquid tank (9) is communicated with a liquid outlet pipe (91), the liquid outlet pipe (91) is used for discharging the treated desulfurization wastewater, the communication between the overflow liquid tank (9) and the treatment box (1) is provided with an overflow filter screen (92).

10. The apparatus for electrochemical treatment of desulfurization wastewater according to claim 9, characterized in that: The rotating shaft (3) is connected with a second connecting rod (35), the second connecting rod (35) is connected with a scraper blade (36), one side of the scraper blade (36) abuts against the overflow filter screen (92).

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