An anode electrode, an electrodeposition cell and an overflow prevention method for preventing electrolysis gas from overflowing

Abstract

The application discloses an anode electrode, an electrodeposition tank and an overflow prevention method for preventing electrolytic gas from overflowing, wherein the anode electrode is a louvered anode electrode, the louvered anode electrode comprises an anode electrode formed by integrally connecting a left anode plate, a right anode plate, a front anode plate, a rear anode plate and a top anode plate, and after the left anode plate, the right anode plate, the front anode plate, the rear anode plate and the top anode plate are integrally connected, an anode electrode chamber is formed in the anode electrode, and an opening is formed in the lower part of the anode electrode chamber; louvers are arranged on the left anode plate and the right anode plate; an anode conducting rod is vertically arranged in the middle of the anode electrode chamber, and the side surface of the anode conducting rod is connected with the left anode plate and the right anode plate of the anode electrode respectively. The application reduces the overflow of harmful gas and improves the environmental protection performance of the electrodeposition tank.

Description

Technical Field

[0001] This invention relates to the field of electrowinning technology, and more specifically to an anode electrode, an electrowinning cell, and an overflow prevention method for preventing the overflow of electrolytic gas. Background Technology

[0002] Electrode-bonding cells are used for electrodebonding metals such as nickel and cobalt. Existing electrode-bonding cells typically consist of a cell body, a diaphragm bag, a diaphragm frame, a cathode plate, an anode plate, and conductive rods. The diaphragm bag divides the entire cell body into two parts: the cathode chamber containing the cathode plate and the anode electrode chamber containing the anode plate. The cathode plate is located outside the diaphragm bag, and the anode plate is located inside the diaphragm bag.

[0003] In the electrowinning process of nickel or cobalt, the nickel or cobalt raw materials are dissolved in the electrolyte solution via a wet process before entering the electrowinning stage. During electrowinning, the anode does not dissolve; instead, the nickel or cobalt metal in the electrolyte solution is gradually deposited into the cathode, i.e., nickel or cobalt is deposited from the electrolyte solution to the cathode. As the electrolytic reaction proceeds in the electrowinning cell, the concentration of various ions in the electrolyte decreases due to consumption, requiring replenishment with fresh electrolyte. Therefore, the electrolyte needs to be diverted and supplied to each diaphragm bag via a circulation pipe.

[0004] Existing electrowinning cells have the following problems during use: when electrowinning metals such as nickel and cobalt, a large amount of electrolytic gas is generated in the cathode and anode chambers, especially the anode chamber (inside the membrane bag), where the concentration of chlorine gas is relatively high. To address this, existing technologies use a dedicated membrane bag gas collection device to treat the chlorine gas overflowing from the membrane bag. However, some chlorine gas passes through the membrane bag into the cathode and then overflows, causing some environmental pollution. Summary of the Invention

[0005] To address the aforementioned problems, this invention proposes an anode electrode, an electrowinning cell, and an overflow prevention method to prevent the leakage of electrolytic gases, aiming to reduce the leakage of harmful gases and improve the environmental performance of the electrowinning cell. The specific technical solution is as follows:

[0006] An anode electrode for preventing the leakage of electrolytic gas is disclosed. The anode electrode is a louvered anode electrode, comprising an anode electrode formed by an integrally connected left anode plate, a right anode plate, a front anode plate, a rear anode plate, and a top anode plate. The integrally connected left anode plate, right anode plate, front anode plate, rear anode plate, and top anode plate form an anode electrode chamber inside, with an opening at the bottom of the anode electrode chamber. Louvers are provided on the left and right anode plates. An anode conductive rod is vertically arranged in the middle of the anode electrode chamber, and the sides of the anode conductive rod are respectively connected to the left and right anode plates of the anode electrode.

[0007] Preferably, the louvers are formed by stamping, and the blades of the stamped louvers are located in the anode electrode chamber; the surface of the louver portion of the louver-type anode electrode is provided with an anode coating, while other portions are not provided with an anode coating.

[0008] Preferably, the louvers are arranged at an upward angle within the anode electrode chamber.

[0009] An electrolytic cell for preventing the leakage of electrolytic gas includes an electrolytic cell body and a louvered anode electrode disposed within the electrolytic cell body. The louvered anode electrode comprises an anode electrode formed by an integrally connected left anode plate, a right anode plate, a front anode plate, a rear anode plate, and a top anode plate. The integrally connected left anode plate, right anode plate, front anode plate, rear anode plate, and top anode plate form an anode electrode chamber within the chamber, with an opening at the bottom. Louvers are provided on the left and right anode plates. Cathode chambers are formed between the left and right sides of the anode electrode and the electrolytic cell body, respectively, and cathode electrodes are disposed within these chambers. A liquid outlet pipe and a gas outlet pipe are respectively disposed within the anode electrode chamber. An anode conductive rod is vertically disposed in the center of the anode electrode chamber, and the sides of the anode conductive rod are connected to the left and right anode plates of the anode electrode.

[0010] The liquid outlet pipe and the vent pipe are respectively inserted into the anode electrode chamber from the lower opening of the anode electrode chamber. The top height of the liquid outlet pipe is higher than the top height of the uppermost slat of the louver, and the top height of the vent pipe is higher than the top height of the liquid outlet pipe.

[0011] In this invention, the upper part of the electrodeposition cell is sealed with a gas collecting hood for collecting gas in the cathode chamber. The gas collecting hood is provided with a cathode gas outlet pipe, which is connected to a cathode gas scrubbing tower. The outlet pipe is connected to an anode gas absorption tower through an anode gas outlet pipe.

[0012] In this invention, the electrolyte in the electrowinning cell is supplied by the raw solution storage tank through an electrolyte supply pipeline. A raw solution pump, a flow meter, and a regulating valve are sequentially installed on the electrolyte supply pipeline connecting the raw solution storage tank and the electrowinning cell.

[0013] Preferably, a gas-liquid separation tank is provided between the anode gas outlet pipe and the anode gas absorption tower; the gas-liquid separation tank is connected to a liquid collection tank through a drain pipe, and a drain pump and a regulating valve are provided on the drain pipe.

[0014] In this invention, the gas-liquid separation tank is connected to the liquid collection tank through a drain pipe, and a drain pump and a regulating valve are installed on the drain pipe; the gas-liquid separation tank is equipped with an upper liquid level switch and a lower liquid level switch for controlling the opening and closing of the drain pump.

[0015] An electrolytic gas spillage prevention method for an electrowinning cell, comprising the following steps:

[0016] (I) Setting of the electrodeposition cell: The anode electrode in the electrodeposition cell is set as a louvered anode electrode. The louvered anode electrode includes an anode electrode formed by an integrated connection of a left anode plate, a right anode plate, a front anode plate, a rear anode plate, and a top anode plate. After the integrated connection of the left anode plate, the right anode plate, the front anode plate, the rear anode plate, and the top anode plate, an anode electrode chamber is formed inside, and an opening is formed at the bottom of the anode electrode chamber. Louvers are provided on the left and right anode plates. Cathode chambers are formed between the left and right sides of the anode electrode and the electrodeposition cell. Cathode electrodes are provided in the cathode chambers. Liquid outlet pipes and gas outlet pipes are provided in the anode electrode chambers. An anode conductive rod is erected in the middle of the anode electrode chamber. The sides of the anode conductive rod are connected to the left and right anode plates of the anode electrode.

[0017] (II) Setting of electrode gas collection device: A gas collection hood for collecting gas in the cathode chamber is sealed and connected to the upper part of the electrodeposition cell. A cathode gas outlet pipe is provided on the gas collection hood and the cathode gas outlet pipe is connected to the cathode gas scrubbing tower. The outlet pipe is connected to the anode gas absorption tower through the anode gas outlet pipe.

[0018] (III) Prevention of electrolytic gas overflow during electrowinning:

[0019] (1) The electrolyte solution is added to the electrolytic cell. The electrolyte solution enters the anode electrode chamber from the cathode chamber through the window of the anode louver and flows out of the electrolytic cell from the outlet pipe. The height of the outlet pipe and the liquid level of the electrolytic cell in the electrowinning tank form a certain liquid level difference H.

[0020] (2) After the electrodes are energized, the gas generated on the blades of the anode louvers rises with the bubbles and accumulates in the anode electrode chamber as the internal and external solutions flow. The gas is drawn from the outlet pipe into the anode gas absorption tower by a slight negative pressure, which is formed by the suction of the pipe fan installed at the top of the anode gas absorption tower. The gas emitted from the cathode solution is sealed by the gas collection hood and enters the cathode gas scrubbing tower by a negative pressure, which is formed by the suction of the pipe fan installed at the top of the cathode gas scrubbing tower.

[0021] (3) During the electrolysis process, the louvered anode electrode with an anode coating reacts and generates bubbles. The bubbles rise due to their own characteristics. Since the flow direction of the electrolyte solution is from the cathode chamber to the anode electrode chamber, the bubbles generated by the anode are always in the anode electrode chamber and accumulate in the top gas chamber of the anode electrode chamber. Then, the gas is extracted and absorbed by a slight negative pressure.

[0022] The beneficial effects of this invention are:

[0023] First, the present invention provides an anode electrode, electrowinning cell, and spill prevention method for preventing electrolytic gas spillage. This invention eliminates the diaphragm bag on the traditional electrowinning cell and uses a louvered anode instead of the diaphragm bag. The louvered anode forms an anode electrode chamber inside, and the anode gas (chlorine) generated after electrolysis is always located in the anode electrode chamber and accumulates in the top gas chamber of the anode electrode chamber. The gas is then extracted through a slightly negative pressure outlet pipe and a cathode gas outlet pipe and absorbed into the anode gas absorption tower, thereby effectively preventing the spillage of anode gas and improving the environmental performance of the electrowinning cell.

[0024] Second, in the present invention, an anode electrode, an electrolytic cell, and an overflow prevention method for preventing electrolytic gas overflow are provided, wherein the flow direction of the electrolytic solution is from the cathode chamber to the anode electrode chamber, and chlorine gas will not enter the cathode chamber.

[0025] Third, the present invention provides an anode electrode, an electrolytic cell, and an overflow prevention method for preventing electrolytic gas spillage. A gas collecting hood for collecting cathode gas is sealed above the electrolytic cell body, thereby achieving separate collection and treatment of anode electrolytic gas and cathode electrolytic gas, which further improves the environmental performance of the electrolytic cell. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an electrodeposition cell for preventing the leakage of electrolytic gas according to the present invention;

[0027] Figure 2 yes Figure 1 A schematic diagram of the anode electrode structure (left view);

[0028] Figure 3 yes Figure 2 AA section view;

[0029] Figure 4 This is a schematic diagram of the electrolytic gas collection system of the electrodeposition cell.

[0030] In the diagram: 1. Anode electrode, 2. Left anode plate, 3. Right anode plate, 4. Front anode plate, 5. Rear anode plate, 6. Top anode plate, 7. Anode electrode chamber, 8. Opening, 9. Louver, 10. Anode conductive rod, 11. Blade, 12. Cathode chamber, 13. Cathode electrode, 14. Liquid outlet pipe, 15. Gas outlet pipe, 16. Gas collection hood, 17. Cathode gas outlet pipe, 18. Electrolyte, 19. Electrowinning cell body. Detailed Implementation

[0031] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0032] Example 1:

[0033] like Figures 1 to 4 The illustration shows an embodiment of an anode electrode for preventing the leakage of electrolytic gas according to the present invention. The anode electrode 1 is a louvered anode electrode. The louvered anode electrode 1 includes an anode electrode 1 formed by an integrally connected left anode plate 2, right anode plate 3, front anode plate 4, rear anode plate 5 and top anode plate 6. After the integral connection of the left anode plate 2, right anode plate 3, front anode plate 4, rear anode plate 5 and top anode plate 6, an anode electrode chamber 7 is formed inside it, and an opening 8 is formed at the lower part of the anode electrode chamber 7. Louvers 9 are provided on the left anode plate 2 and right anode plate 3. An anode conductive rod 10 is vertically arranged in the middle of the anode electrode chamber 7. The sides of the anode conductive rod 10 are respectively connected to the left anode plate 2 and right anode plate 3 of the anode electrode 1.

[0034] Preferably, the louver 9 is formed by stamping, and the blades 11 of the louver 9 formed by stamping are located inside the anode electrode chamber 7; the surface of the louver 9 portion of the louver-type anode electrode 1 is provided with an anode coating, while other portions are not provided with an anode coating.

[0035] Preferably, the blades 11 of the louver 9 are arranged at an upward angle within the anode electrode chamber 7.

[0036] Example 2:

[0037] An electrolytic cell for preventing the leakage of electrolytic gas includes an electrolytic cell body 19 and a louvered anode electrode 1 disposed within the electrolytic cell body 19. The louvered anode electrode 1 comprises an anode electrode 1 formed by an integrally connected left anode plate 2, a right anode plate 3, a front anode plate 4, a rear anode plate 5, and a top anode plate 6. The integrally connected left anode plate 2, right anode plate 3, front anode plate 4, rear anode plate 5, and top anode plate 6 form an anode electrode chamber 7 within the chamber. An opening 8 is formed at the bottom of chamber 7, and louvers 9 are provided on the left anode plate 2 and the right anode plate 3; cathode chambers 12 are formed between the left and right sides of the anode electrode 1 and the electrodeposition tank body 19, and cathode electrodes 13 are provided in the cathode chambers 12; liquid outlet pipe 14 and gas outlet pipe 15 are respectively provided in the anode electrode chamber 7, and an anode conductive rod 10 is erected in the middle of the anode electrode chamber 7, and the sides of the anode conductive rod 10 are respectively connected to the left anode plate 2 and the right anode plate 3 of the anode electrode 1.

[0038] The liquid outlet pipe 14 and the vent pipe 15 are respectively inserted into the anode electrode chamber 7 from the lower opening 8. The top height of the liquid outlet pipe 14 is higher than the top height of the uppermost blade 11 of the louver 9, and the top height of the vent pipe 15 is higher than the top height of the liquid outlet pipe 14.

[0039] In this embodiment, the upper part of the electrodeposition cell 19 is sealed with a gas collecting hood 16 for collecting gas in the cathode chamber 12. The gas collecting hood 16 is provided with a cathode gas outlet pipe 17, which is connected to a cathode gas scrubbing tower. The gas outlet pipe 15 is connected to an anode gas absorption tower through an anode gas outlet pipe.

[0040] In this embodiment, the electrolyte 18 of the electrowinning cell is supplied by the original solution storage tank through the electrolyte supply pipeline. The original solution pump, flow meter and regulating valve are sequentially arranged on the electrolyte supply pipeline connecting the original solution storage tank and the electrowinning cell.

[0041] Preferably, a gas-liquid separation tank is provided between the anode gas outlet pipe and the anode gas absorption tower; the gas-liquid separation tank is connected to a liquid collection tank through a drain pipe, and a drain pump and a regulating valve are provided on the drain pipe.

[0042] In this embodiment, the gas-liquid separation tank is connected to the liquid collection tank through a drain pipe, and a drain pump and a regulating valve are installed on the drain pipe; the gas-liquid separation tank is equipped with an upper liquid level switch and a lower liquid level switch for controlling the opening and closing of the drain pump.

[0043] Example 3:

[0044] An electrolytic gas spillage prevention method for an electrowinning cell, comprising the following steps:

[0045] (I) Setting of the electrodeposition cell: The anode electrode 1 in the electrodeposition cell body 19 is set as a louvered anode electrode. The louvered anode electrode includes an anode electrode 1 formed by an integrated enclosure of a left anode plate 2, a right anode plate 3, a front anode plate 4, a rear anode plate 5, and a top anode plate 6. After the integrated enclosure of the left anode plate 2, right anode plate 3, front anode plate 4, rear anode plate 5, and top anode plate 6, an anode electrode chamber 7 is formed inside it, and a shape is formed in the lower part of the anode electrode chamber 7. An opening 8 is formed, and louvers 9 are provided on the left anode plate 2 and the right anode plate 3; cathode chambers 12 are formed between the left and right sides of the anode electrode 1 and the electrodeposition tank body 19, and cathode electrodes 13 are provided in the cathode chambers 12; liquid outlet pipe 14 and gas outlet pipe 15 are respectively provided in the anode electrode chamber 7, and an anode conductive rod 10 is erected in the middle of the anode electrode chamber 7, and the sides of the anode conductive rod 10 are respectively connected to the left anode plate 2 and the right anode plate 3 of the anode electrode 1;

[0046] (II) Setting of electrode gas collection device: A gas collecting hood 16 for collecting gas in cathode chamber 12 is sealed and connected to the upper part of the electrodeposition tank 19. A cathode gas outlet pipe 17 is provided on the gas collecting hood 16 and is connected to the cathode gas scrubbing tower. The gas outlet pipe 15 is connected to the anode gas absorption tower through the anode gas outlet pipe.

[0047] (III) Prevention of electrolytic gas overflow during electrowinning:

[0048] (1) The electrolyte solution is added to the electrolytic cell. The electrolyte solution enters the anode electrode chamber 7 from the cathode chamber 12 through the window of the anode louver 9 and flows out of the electrolytic cell from the outlet pipe 14. The height of the outlet pipe 14 and the liquid level height of the electrolytic cell in the electrowinning tank 19 form a certain liquid level difference H.

[0049] (2) After the electrode is energized, the gas generated on the blades 11 of the anode louver 9 rises with the bubbles and accumulates in the anode electrode chamber 7 as the internal and external solutions flow. The gas is drawn from the outlet pipe 15 into the anode gas absorption tower by a slight negative pressure, which is formed by the suction of the pipe fan installed at the top of the anode gas absorption tower. The gas emitted from the cathode solution is sealed by the gas collection hood 16 and enters the cathode gas scrubbing tower by a negative pressure, which is formed by the suction of the pipe fan installed at the top of the cathode gas scrubbing tower.

[0050] (3) During the electrolysis process, the louvered anode electrode 1 with an anode coating reacts and generates bubbles. The bubbles rise due to their own characteristics. Since the flow direction of the electrolyte solution is from the cathode chamber 12 to the anode electrode chamber 7, the bubbles generated by the anode are always in the anode electrode chamber 7 and accumulate in the top gas chamber of the anode electrode chamber 7. Then, the gas is extracted and absorbed by a slight negative pressure.

[0051] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An anode electrode for preventing electrolysis gas from overflowing, characterized by comprising: The anode electrode is a louvered anode electrode, which comprises an anode electrode formed by integrally connecting a left anode plate, a right anode plate, a front anode plate, a rear anode plate and a top anode plate, and after the integrally connecting of the left anode plate, the right anode plate, the front anode plate, the rear anode plate and the top anode plate, an anode electrode chamber is formed in the interior of the anode electrode and an opening is formed in the lower part of the anode electrode chamber, and louvers are arranged on the left anode plate and the right anode plate; an anode conducting rod is vertically arranged in the middle of the anode electrode chamber, and the side surfaces of the anode conducting rod are connected with the left anode plate and the right anode plate of the anode electrode respectively; the blades of the louvers are located in the anode electrode chamber, and the blades of the louvers are arranged in an upwardly inclined manner in the anode electrode chamber; the surface of the louvered part of the louvered anode electrode is provided with an anode coating, and other parts are not provided with an anode coating.

2. The anode electrode for preventing electrolysis gas from overflowing outside according to claim 1, wherein The louver is formed by stamping.

3. An electrolysis cell for preventing the overflow of electrolysis gas, which employs the anode electrode according to claim 1, characterized by The electrodeposition tank comprises a tank body and a louvered anode electrode arranged in the tank body, the louvered anode electrode comprises an anode electrode formed by integrally connecting a left anode plate, a right anode plate, a front anode plate, a rear anode plate and a top anode plate, and after the integrally connecting of the left anode plate, the right anode plate, the front anode plate, the rear anode plate and the top anode plate, an anode electrode chamber is formed in the interior of the anode electrode and an opening is formed in the lower part of the anode electrode chamber, and louvers are arranged on the left anode plate and the right anode plate; cathode chambers are respectively formed between the left and right sides of the anode electrode and the tank body, and cathode electrodes are arranged in the cathode chambers; a liquid outlet pipe and a gas outlet pipe are respectively arranged in the anode electrode chamber, and an anode conducting rod is vertically arranged in the middle of the anode electrode chamber, and the side surfaces of the anode conducting rod are connected with the left anode plate and the right anode plate of the anode electrode respectively.

4. The electrolysis cell of claim 3, wherein, The liquid outlet pipe and the gas outlet pipe are respectively inserted into the anode electrode chamber from the lower opening of the anode electrode chamber, the top height of the liquid outlet pipe is higher than the top height of the uppermost blade of the louver, and the top height of the gas outlet pipe is higher than the top height of the liquid outlet pipe.

5. The electrolysis cell of claim 3, wherein, A gas collecting cover for collecting the gas in the cathode chamber is sealingly connected to the upper part of the tank body, a cathode gas leading pipe is arranged on the gas collecting cover, and the cathode gas leading pipe is connected to a cathode gas washing tower; the gas outlet pipe is connected to an anode gas absorption tower through an anode gas leading pipe.

6. The electrolysis cell of claim 3, wherein, The electrolyte of the electrodeposition tank is supplied by a raw solution storage tank through an electrolyte supply pipeline, and a raw solution pump, a flow meter and a regulating valve are sequentially arranged on the electrolyte supply pipeline connecting the raw solution storage tank and the electrodeposition tank.

7. The electrolysis cell of claim 5, wherein, A gas-liquid separation tank is arranged between the anode gas leading pipe and the anode gas absorption tower, and the gas-liquid separation tank is connected to a liquid collecting tank through a liquid discharge pipeline, and a liquid discharge pump and a regulating valve are arranged on the liquid discharge pipeline.

8. The electrolysis cell of claim 7, wherein, The gas-liquid separation tank is connected to a liquid collecting tank through a liquid discharge pipeline, a liquid discharge pump and an adjusting valve are arranged on the liquid discharge pipeline, and upper and lower liquid level switches are arranged in the gas-liquid separation tank to control the opening and closing of the liquid discharge pump.

9. An electrolytic gas spill-proof method for an electrolytic gas spill-proof cell employing the anode electrode of claim 1, characterized by, The method comprises the following steps: (1) the anode electrode in the electrodeposition tank body is arranged as a louvered anode electrode, the louvered anode electrode comprises an anode electrode formed by integrally connecting a left anode plate, a right anode plate, a front anode plate, a rear anode plate and a top anode plate, and after the left anode plate, the right anode plate, the front anode plate, the rear anode plate and the top anode plate are integrally connected, an anode electrode chamber is formed in the interior of the left anode plate, the right anode plate, the front anode plate, the rear anode plate and the top anode plate, and an opening is formed in the lower part of the anode electrode chamber, and louvers are arranged on the left anode plate and the right anode plate; the left and right sides of the anode electrode and the electrodeposition tank body form cathode chambers, respectively, and cathode electrodes are arranged in the cathode chambers; a liquid outlet pipe and a gas outlet pipe are arranged in the anode electrode chamber, respectively, and an anode conductive rod is vertically arranged in the middle of the anode electrode chamber, and the side surfaces of the anode conductive rod are connected to the left anode plate and the right anode plate of the anode electrode, respectively; (2) a gas collecting cover for collecting the gas in the cathode chamber is sealingly connected to the upper part of the electrodeposition tank body, a cathode gas leading pipe is arranged on the gas collecting cover, and the cathode gas leading pipe is connected to a cathode gas washing tower; the gas outlet pipe is connected to an anode gas absorption tower through an anode gas leading pipe; (3) during electrodeposition, the louvered anode electrode with an anode coating reacts and generates bubbles, the bubbles float upwards due to their own characteristics, and since the flow direction of the electrolytic solution is from the cathode chamber to the anode electrode chamber, the bubbles generated by the anode always gather in the anode electrode chamber and in the top gas chamber in the anode electrode chamber, and then the bubbles are extracted and absorbed through micro negative pressure. (1) the electrolytic solution is added to the electrolytic cell, the electrolytic solution enters the anode electrode chamber through the windows of the anode louvers from the cathode chamber, and flows out of the electrolytic cell from the liquid outlet pipe, wherein the height of the liquid outlet pipe and the liquid level height of the electrolytic cell in the electrodeposition tank body form a certain liquid level difference H; (2) after the electrodes are powered on, the gas on the blades of the anode louvers is extracted into the anode gas absorption tower through micro negative pressure, the micro negative pressure is formed by the suction of the pipeline fan arranged at the top of the anode gas absorption tower, the gas in the cathode solution is enclosed by the gas collecting cover and enters the cathode gas washing tower through negative pressure, and the negative pressure is formed by the suction of the pipeline fan arranged at the top of the cathode gas washing tower; (3) during the electrolysis process, the louvered anode electrode with an anode coating reacts and generates bubbles, the bubbles float upwards due to their own characteristics, and since the flow direction of the electrolytic solution is from the cathode chamber to the anode electrode chamber, the bubbles generated by the anode always gather in the anode electrode chamber and in the top gas chamber in the anode electrode chamber, and then the bubbles are extracted and absorbed through micro negative pressure.

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