Screen alkali washing device used as an electrode

Abstract

The present invention provides a screen alkali washing device used as an electrode, which sequentially includes a de-aluminum unit, a first air knife unit, a water washing unit, a second air knife unit, and a drying unit. The de-aluminum unit can make the screen transfer in a serpentine shape, and at the same time, can fully react the aluminum on the screen, and can also clean the alkali solution. The first air knife unit can blow the surface of the screen after alkali washing to remove the residual alkali solution on the screen. The water washing unit can spray and wash the screen. The second air knife unit can remove the residual moisture on the screen surface. The drying unit can dry the screen. The screen alkali washing device provided by the present invention can effectively ensure the full reaction of aluminum and alkali solution, ensure the de-aluminum effect, and at the same time can effectively ensure the cleaning effect of the screen surface, and has strong structural practicability.

Description

Technical Field

[0001] The present invention belongs to the technical field of screen desilication, and particularly relates to a screen alkali washing device used as an electrode. Background Art

[0002] Metal screens are commonly used as electrodes. However, in order to ensure the contact area between the metal screen and the electrolyte, a nickel-aluminum coating is usually sprayed on the surface of the screen. In order to ensure the formation of a honeycomb shape, it is necessary to remove the aluminum in the nickel-aluminum coating. At this time, the screen needs to pass through an alkali washing device, and the aluminum component in the coating is removed through the reaction of aluminum with the alkali solution.

[0003] In the prior art, in order to ensure sufficient reaction of the aluminum component, the size of the alkali washing tank is usually made relatively large. This method undoubtedly increases the occupied space and has poor practicability. Moreover, after the screen is desilicated by the alkali washing device, the screen surface will be cleaned. The conventional method is to export it from the alkali washing tank and then enter the clean water tank, and then be dried after being exported from the clean water tank. However, in actual use, because the screen will carry the alkali solution after being exported from the alkali washing tank, and then directly send the alkali solution into the clean water tank. After long-term use, the clean water in the clean water tank will also be alkaline. Therefore, it is necessary to stop the machine regularly to replace the water in the clean water tank, which is time-consuming and laborious, reduces production efficiency, and has poor practicability. Summary of the Invention

[0004] An embodiment of the present invention provides a screen alkali washing device used as an electrode, aiming to solve the problem of poor practicability of the existing screen alkali washing device.

[0005] To achieve the above object, the technical solution adopted by the present invention is: to provide a screen alkali washing device used as an electrode, which sequentially includes a desilication unit, a first air knife unit, a water washing unit, a second air knife unit, and a drying unit;

[0006] Among them, the desilication unit includes an alkali washing tank, a transfer assembly, a bubbling assembly, and a circulating cleaning assembly; the alkali washing tank has an alkali solution chamber for containing alkali solution; the transfer assembly is arranged in the alkali solution chamber for the screen entering the alkali solution chamber to be transferred in a serpentine shape; the bubbling assembly is arranged at the bottom of the alkali washing tank for blowing bubbles into the alkali solution chamber; the circulating cleaning assembly is communicated with the alkali solution chamber for circulating the alkali solution and cleaning the impurities in the alkali solution;

[0007] Among them, the first air knife unit is used to blow the surface of the screen after alkali washing to remove the residual alkali solution on the screen; the water washing unit is used to spray and wash the screen; the second air knife unit is used to remove the residual moisture on the screen surface; the drying unit is used to dry the screen.

[0008] In a possible implementation, the transfer component includes a plurality of guide rollers, and each of the guide rollers is used for the wire mesh to be arranged in a serpentine shape.

[0009] In a possible implementation, the width direction of the wire mesh is set as the first direction, and the horizontal direction perpendicular to the first direction is set as the second direction;

[0010] The bubbling component includes a filter screen, a main air pipe, sub-air pipes and support blocks; the filter screen is arranged at the bottom of the lye chamber and is inclined, the filter screen has a highest end and a lowest end, and the filter screen divides the lye chamber into an aluminide removal chamber and an auxiliary chamber distributed vertically; the main air pipe is arranged outside the alkali washing tank and is arranged along the second direction; there are a plurality of sub-air pipes, each of the sub-air pipes is arranged in the auxiliary chamber, each of the sub-air pipes is arranged along the first direction and is spaced along the second direction, one end of each of the sub-air pipes extends out of the alkali washing tank and is communicated with the main air pipe, and a plurality of air outlet holes are uniformly arranged on the side wall of each of the sub-air pipes; there are a plurality of support blocks, and each of the support blocks is arranged corresponding to each of the sub-air pipes for supporting each of the sub-air pipes, and a storage space is formed between any two adjacent support blocks.

[0011] In a possible implementation, the alkali washing tank is provided with a liquid inlet and a liquid outlet communicated with the circulating cleaning component; there are a plurality of liquid inlets, and each of the liquid inlets is spaced along the first direction, and each of the liquid inlets is located on the side wall of the alkali lye tank corresponding to the highest end of the filter screen and is communicated with the auxiliary chamber, and the height of each of the liquid inlets is higher than the height of each of the sub-air pipes for filling the auxiliary chamber with alkali lye along the first direction; there are a plurality of liquid outlets, and each of the liquid outlets is spaced along the first direction, and each of the liquid outlets is located on the side wall of the alkali lye tank corresponding to the lowest end of the filter screen and is communicated with the aluminide removal chamber.

[0012] In a possible implementation, the bottom of the alkali washing tank is provided with a guiding inclined surface inclined along the first direction, and the guiding inclined surface has a highest end and a lowest end; a plurality of discharge ports are provided on the side wall of the alkali washing tank corresponding to the lowest end of the guiding inclined surface, and each of the discharge ports is communicated with each of the storage spaces in one-to-one correspondence;

[0013] Wherein, a sealing baffle is detachably connected to each of the discharge ports for sealing each of the discharge ports.

[0014] In a possible implementation, the circulating cleaning assembly includes an oil scraper, a filter, and a circulating pump; the oil scraper has an oil scraper inlet and an oil scraper outlet, and the oil scraper inlet is communicated with each of the liquid outlets; the filter has a filter inlet and a filter outlet, and the filter inlet is communicated with the oil scraper outlet; the circulating pump has a circulating pump inlet and a circulating pump outlet, the circulating pump inlet is communicated with the filter outlet, and the circulating pump outlet is communicated with each of the liquid inlets.

[0015] In a possible implementation, the first air shearing unit includes a first liquid storage tank and a first blower; the first liquid storage tank has a first cavity for the wire mesh to pass through horizontally; the first blower is located in the first cavity and above the wire mesh, and is used for blowing air vertically on the wire mesh during the transfer process of the wire mesh.

[0016] In a possible implementation, the second air shearing unit includes a second liquid storage tank and a second blower; the second liquid storage tank has a second cavity for the wire mesh to pass through horizontally; the second blower is located in the second cavity and above the wire mesh, and the power of the second blower is greater than that of the first blower, and is used for blowing air vertically on the wire mesh during the transfer process of the wire mesh.

[0017] In a possible implementation, the drying unit includes an air box and a hot air blower; the air box has a drying cavity for the wire mesh to pass through horizontally; the hot air blower is arranged in the drying cavity and is used for sending hot air into the drying cavity to dry the wire mesh.

[0018] In this implementation, in the de-aluminum unit, a transfer assembly is arranged in the alkali washing tank, which can make the wire mesh immersed in the alkali solution transfer in a snake shape, ensuring that the transfer distance of the wire mesh is extended within an effective space, thereby ensuring the full reaction of aluminum with the alkali solution and ensuring the de-aluminum effect. The bubbling assembly can provide bubbles in the alkali solution, and the rolling of the bubbles can disturb the alkali solution, further ensuring the full reaction of aluminum with the alkali solution. The circulating cleaning assembly can remove impurities in the alkali washing tank. The first air shearing unit can remove the residual alkali solution on the wire mesh when the wire mesh is led out of the alkali solution tank, avoiding most of the alkali solution being carried into the water washing unit. The water washing unit cleans the wire mesh by spraying, ensuring the cleaning effect of the wire mesh and avoiding a small amount of residual alkali solution on the wire mesh. The second air shearing unit and the drying unit can remove the residual moisture on the wire mesh. The wire mesh alkali washing device used as an electrode provided by this implementation can effectively ensure the full reaction of aluminum with the alkali solution, ensure the de-aluminum effect, and at the same time can effectively ensure the cleaning effect on the surface of the wire mesh, with strong structural practicability. Description of the Drawings

[0019] Figure 1Schematic structural diagram of the screen alkali washing device used as an electrode provided by an embodiment of the present invention;

[0020] Figure 2 Schematic structural diagram of the de-aluminum unit of the screen alkali washing device used as an electrode provided by an embodiment of the present invention;

[0021] Figure 3 For Figure 2 Schematic cross-sectional structural diagram taken along the A-A direction of the screen alkali washing device used as an electrode provided by the embodiment;

[0022] Explanation of reference numerals:

[0023] 10. De-aluminum unit; 11. Alkali washing tank; 111. De-aluminum cavity; 112. Auxiliary cavity; 113. Liquid inlet; 114. Liquid outlet; 115. Guide inclined surface; 116. Sealing baffle; 12. Transfer assembly; 121. Guide roller; 13. Bubbling assembly; 131. Filter screen; 132. Main air pipe; 133. Sub-air pipe; 134. Support block; 135. Storage space; 14. Circulating cleaning assembly; 141. Oil scraper; 142. Filter; 143. Circulation pump; 20. First air shear unit; 21. First liquid storage tank; 22. First fan; 30. Water washing unit; 31. Third liquid storage tank; 32. Spray head; 33. Pressure pump; 40. Second air shear unit; 41. Second liquid storage tank; 42. Second fan; 50. Drying unit; 51. Air box; 52. Hot air blower; 60. Screen. Detailed implementation manners

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] Please refer to Figures 1 to 3 together, and now the screen alkali washing device used as an electrode provided by the present invention will be described. The screen alkali washing device used as an electrode sequentially includes a de-aluminum unit 10, a first air shear unit 20, a water washing unit 30, a second air shear unit 40, and a drying unit 50.

[0026] The de-aluminum unit 10 includes an alkali washing tank 11, a transfer assembly 12, a bubbling assembly 13, and a circulating cleaning assembly 14. The alkali washing tank 11 has an alkali solution cavity capable of containing alkali solution. The transfer assembly 12 is arranged in the alkali solution cavity and can supply the screen 60 entering the alkali solution cavity to be transferred in a serpentine shape. The bubbling assembly 13 is arranged at the bottom of the alkali washing tank 11 and can blow air bubbles into the alkali solution cavity. The circulating cleaning assembly 14 is communicated with the alkali solution cavity and can circulate the alkali solution and clean the impurities in the alkali solution.

[0027] The first air knife unit 20 can blow the surface of the wire mesh 60 after caustic washing to remove the residual caustic solution on the wire mesh 60. The water washing unit 30 can spray and wash the wire mesh 60. The second air knife unit 40 can remove the residual moisture on the surface of the wire mesh 60. The drying unit 50 can dry the wire mesh 60.

[0028] The wire mesh caustic washing device used as an electrode provided in this embodiment, compared with the prior art, in the de-aluminum unit 10, a transfer assembly 12 is arranged in the caustic washing tank 11, which can make the wire mesh 60 immersed in the caustic solution be transferred in a serpentine shape, ensuring that the transfer distance of the wire mesh 60 is extended within an effective space, thereby ensuring the full reaction of aluminum with the caustic solution and ensuring the de-aluminum effect. The bubbling assembly 13 can provide bubbles in the caustic solution, and the rolling of the bubbles can disturb the caustic solution, further ensuring the full reaction of aluminum with the caustic solution. The circulating cleaning assembly 14 can remove impurities in the caustic washing tank 11. The first air knife unit can remove the residual caustic solution on the wire mesh 60 when the wire mesh 60 is led out of the caustic solution tank, avoiding most of the caustic solution being carried into the water washing unit 30. The water washing unit 30 cleans the wire mesh 60 by spraying, ensuring the cleaning effect of the wire mesh 60 and avoiding a small amount of caustic solution residue on the wire mesh 60. The second air knife unit 40 and the drying unit 50 can remove the residual moisture on the wire mesh 60. The wire mesh caustic washing device used as an electrode provided in this embodiment can effectively ensure the full reaction of aluminum with the caustic solution, ensure the de-aluminum effect, and at the same time can effectively ensure the cleaning effect of the surface of the wire mesh 60, with strong structural practicability.

[0029] It should be noted that after the wire mesh 60 enters the caustic washing tank 11, aluminum reacts with the caustic solution. During this process, some nickel powder will fall into the caustic solution tank, and at the same time, a small amount of oil stain will also be generated. The circulating cleaning assembly 14 mainly collects and processes the nickel powder and oil stain.

[0030] In addition, the caustic washing tank 11 can be directly corresponding to the wire mesh outlet of the spraying equipment, so that the sprayed wire mesh 60 can be directly introduced into the gap tank. In addition, a winding mechanism can be arranged behind the drying unit 50 to wind the wire mesh 60.

[0031] Since the caustic solution reacts with aluminum to generate sodium aluminate and hydrogen, a hydrogen concentration detector can be set in the caustic washing tank 11 at this time to prevent the hydrogen concentration in the caustic washing tank 11 from being too high.

[0032] In some embodiments, the above transfer assembly 12 can adopt the structure as Figure 2 shown. Refer to Figure 2 , the transfer assembly 12 includes a plurality of guide rollers 121, and each guide roller 121 can allow the wire mesh 60 to be arranged in a serpentine shape.

[0033] In this embodiment, a plurality of guide rollers 121 are provided, such that the wire mesh 60 is arranged in a serpentine shape in the lye chamber, which can increase the travel distance of the wire mesh 60 in the lye, and thus can ensure the sufficient reaction between aluminum and the lye. This structure can effectively reduce the occupied space of the lye tank and has strong practicability. In addition, the arrangement of the guide rollers 121 can be adjusted according to the actual situation, and reference can be made to Figure 2 .

[0034] In some embodiments, the above-mentioned bubbling assembly 13 can adopt the structure as shown in Figures 2 to 3 . Refer to Figures 2 to 3 . Set the width direction of the wire mesh 60 as the first direction, and the horizontal direction perpendicular to the first direction as the second direction.

[0035] The bubbling assembly 13 includes a filter screen 131, a main air pipe 132, sub-air pipes 133, and support blocks 134. The filter screen 131 is arranged at the bottom of the lye chamber and is inclined. The filter screen 131 has a highest end and a lowest end. The filter screen 131 divides the lye chamber into an aluminum removal chamber 111 and an auxiliary chamber 112 distributed vertically. The main air pipe 132 is arranged outside the alkali washing tank 11 and is arranged along the second direction. A plurality of sub-air pipes 133 are provided, and each sub-air pipe 133 is arranged in the auxiliary chamber 112. Each sub-air pipe 133 is arranged along the first direction and is spaced along the second direction. One end of each sub-air pipe 133 extends out of the alkali washing tank 11 and is connected to the main air pipe 132. A plurality of air outlet holes are uniformly arranged on the side wall of each sub-air pipe 133. A plurality of support blocks 134 are provided, and each support block 134 is arranged corresponding to each sub-air pipe 133, and can support each sub-air pipe 133. A material storage space 135 is formed between any two adjacent support blocks 134.

[0036] The main air pipe 132 can be connected to an air pump arranged outside. After the main air pipe 132 transmits compressed air to the sub-air pipes 133, each sub-air pipe 133 injects gas into the lye through the air outlet holes uniformly arranged on its side wall. As the bubbles roll in the lye, the lye can be disturbed, and thus the sufficient reaction between the lye and the aluminum on the wire mesh 60 can be ensured. The filter screen 131 is inclined, and the filter screen 131 divides the lye chamber into an aluminum removal chamber 111 and an auxiliary chamber 112. The inclined filter screen 131 can ensure the filtration of nickel powder, and due to the disturbance of the bubbles, the nickel powder attached to the filter screen 131 can move towards the lowest end of the filter screen 131, preventing the filter screen 131 from being blocked. In addition, the filter screen 131 can further disperse the bubbles generated by each sub-air pipe 133, further ensuring the number of bubbles entering the aluminum removal chamber 111, further ensuring the disturbance effect of the lye in the aluminum removal chamber 111, and thus ensuring the sufficient reaction between the aluminum on the wire mesh 60 and the lye. The structure of the bubbling assembly 13 is simple, can effectively ensure the sufficient reaction between aluminum and lye, and has strong practicability.

[0037] Each support block 134 can effectively ensure the support of each sub-air pipe 133 and guarantee the stability of each sub-air pipe 133. In addition, a material storage space 135 is formed between two adjacent support blocks 134. Since nickel powder with a relatively small particle size cannot be intercepted by the filter screen 131, the nickel powder will directly enter the auxiliary cavity 112. At this time, in order to prevent the nickel powder from being continuously carried by the liquid, it will directly fall into the material storage space 135. This structure can ensure the purity of the lye and guarantee the collection of nickel powder.

[0038] In this embodiment, a valve can be provided at one end of each sub-air pipe 133 outside the caustic washing tank 11 to ensure the opening and closing control of each sub-air pipe 133.

[0039] In some embodiments, the above-mentioned caustic washing tank 11 can adopt the structure as Figures 2 to 3 shown. Refer to Figures 2 to 3 , the caustic washing tank 11 is provided with a liquid inlet 113 and a liquid outlet 114 that communicate with the circulating cleaning assembly 14. There are multiple liquid inlets 113, and the liquid inlets 113 are arranged at intervals along the first direction. Each liquid inlet 113 is located on the side wall of the alkali tank corresponding to the highest end of the filter screen 131 and communicates with the auxiliary cavity 112. The height of each liquid inlet 113 is higher than the height of each sub-air pipe 133, and can fill the auxiliary cavity 112 with lye along the first direction. There are multiple liquid outlets 114, and the liquid outlets 114 are arranged at intervals along the first direction. Each liquid outlet 114 is located on the side wall of the alkali tank corresponding to the lowest end of the filter screen 131 and communicates with the de-aluminum cavity 111.

[0040] The liquid inlet 113 and the liquid outlet 114 can ensure the connection with the circulating cleaning assembly 14. Each liquid inlet 113 is arranged at intervals along the width direction of the wire mesh 60 and can spray lye along the first direction. After the lye flows along the first direction, it can pass through the filter screen 131 at the bottom of the filter screen 131, further giving a driving force to the nickel powder accumulated on the filter screen 131, so that the nickel powder on the filter screen 131 moves to the lowest end of the filter screen 131. In addition, the height of each liquid inlet 113 is higher than the height of each sub-air pipe 133. When the liquid sprayed from the liquid inlet 113 flows along the first direction, affected by each support block 134, the nickel powder in each material storage space 135 cannot be carried by the fluid, and thus nickel powder with a relatively small particle size can be stably collected in the material storage space 135.

[0041] It should also be noted that each liquid outlet 114 can be located at the lowest end of the filter screen 131 to ensure the export of the nickel powder moved down on the filter screen 131.

[0042] In addition, two diagonal plates can be provided between any two adjacent support blocks 134. Refer to Figure 2, both diagonal plates are arranged along the second direction and are respectively connected to the two abutting blocks. One end of each diagonal plate is fixedly arranged on the corresponding abutting block, and the other end extends obliquely downward towards the other abutting block, forming a channel for nickel powder to pass through between the two diagonal plates. This structure can further prevent the nickel powder in the material storage space 135 from being disturbed after the fluid enters the liquid inlet 113, ensuring the stability of the nickel powder in the material storage space 135.

[0043] In some embodiments, the above-mentioned alkali washing tank 11 can adopt the structure as Figure 3 shown. Refer to Figure 3 , a guiding inclined surface 115 is arranged at the bottom of the alkali washing tank 11 and is inclined along the first direction. The guiding inclined surface 115 has a highest end and a lowest end. A plurality of discharge ports are arranged on the side wall of the alkali washing tank 11 corresponding to the lowest end of the guiding inclined surface 115, and each discharge port is in one-to-one correspondence and communication with each material storage space 135.

[0044] Among them, a sealing baffle 116 is detachably connected to each discharge port, and can seal each discharge port.

[0045] When the alkali washing tank 11 is used for a period of time, it needs to be cleaned inside. The arranged guiding inclined surface 115 can ensure the guiding of nickel powder with smaller particle size, and further ensure that after the sealing baffle 116 is opened, all the nickel powder can be discharged, facilitating the backwashing operation.

[0046] It should be noted that each sealing baffle 116 and the alkali washing tank 11 can be bolted.

[0047] In some embodiments, the above-mentioned circulating cleaning assembly 14 can adopt the structure as Figure 2 shown. Refer to Figure 2 , the circulating cleaning assembly 14 includes an oil scraper 141, a filter 142 and a circulating pump 143. The oil scraper 141 has an oil scraper 141 inlet and an oil scraper 141 outlet, and the oil scraper 141 inlet is communicated with each liquid outlet 114. The filter 142 has a filter 142 inlet and a filter 142 outlet, and the filter 142 inlet is communicated with the oil scraper 141 outlet. The circulating pump 143 has a circulating pump 143 inlet and a circulating pump 143 outlet, the circulating pump 143 inlet is communicated with the filter 142 outlet, and the circulating pump 143 outlet is communicated with each liquid inlet 113.

[0048] The oil scraper 141 can effectively ensure the removal of the oil stains generated in the alkali solution. Preferably, the oil scraper 141 can adopt a belt-type oil scraper 141. The filter 142 can ensure the removal of nickel powder in the alkali solution. Preferably, the filter 142 can adopt a precision bag filter 142. The circulating pump 143 mainly provides power. The above structures are all prior arts and will not be elaborated here.

[0049] In some embodiments, the above-mentioned first air shear unit 20 may adopt the structure as shown in Figure 3 . Referring to Figure 3 , the first air shear unit 20 includes a first liquid storage tank 21 and a first blower 22. The first liquid storage tank 21 has a first cavity for the screen 60 to pass through horizontally. The first blower 22 is located in the first cavity and above the screen 60, and can blow air to the screen 60 in the vertical direction during the transfer of the screen 60.

[0050] The first blower 22 can blow the alkali solution remaining on the screen 60 into the first cavity. Preferably, the alkali solution in the first cavity can be reused, which can reduce the loss of the alkali solution.

[0051] In some embodiments, the above-mentioned second air shear unit 40 may adopt the structure as shown in Figure 3 . Referring to Figure 3 , the second air shear unit 40 includes a second liquid storage tank 41 and a second blower 42. The second liquid storage tank 41 has a second cavity for the screen 60 to pass through horizontally. The second blower 42 is located in the second cavity and above the screen 60. The power of the second blower 42 is greater than that of the first blower 22, and can blow air to the screen 60 in the vertical direction during the transfer of the screen 60.

[0052] The second blower 42 is a high-power blower, which can ensure the removal of the water remaining on the screen 60.

[0053] In some embodiments, the above-mentioned water washing unit 30 may adopt the structure as shown in Figure 3 . Referring to Figure 3 , the water washing unit 30 includes a third liquid storage tank 31, a spray head 32 and a pressure pump 33. The third liquid storage tank 31 has a third cavity for the screen 60 to pass through horizontally. A plurality of spray heads 32 are provided, and the spray heads 32 are arranged at intervals along the width direction of the screen 60 and are all located above the screen 60, and can wash the screen 60 during the transfer of the screen 60.

[0054] By providing the spray head 32, the previous immersion method can be changed. This structure can effectively prevent the screen 60 from being coated with alkali solution, thereby ensuring the cleaning effect of the screen 60. Recycled water can be stored in the third cavity.

[0055] In some embodiments, the above-mentioned drying unit 50 may adopt the structure as shown in Figure 3 . Referring to Figure 3, the drying unit 50 includes a wind box 51 and a hot air blower 52. The wind box 51 has a drying chamber for the screen 60 to pass through horizontally. The hot air blower 52 is arranged in the drying chamber and can send hot air into the drying chamber to dry the screen 60. Through the wind box 51 and the hot air blower 52, the drying unit 50 can ensure further drying treatment of the water adhered to the screen 60, ensure the dryness of the screen 60, and avoid electrochemical corrosion of the screen 60 due to adhered water in the later stage.

[0056] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A screen alkali washing device used as an electrode, characterized in that, It includes a dealuminizing unit, a first wind shearing unit, a water washing unit, a second wind shearing unit and a drying unit in sequence; the width direction of the screen is set as the first direction, and the horizontal direction perpendicular to the first direction is set as the second direction; The dealuminizing unit comprises an alkali washing tank, a transfer component, a bubbling component and a circulating cleaning component; the alkali washing tank has an alkali liquid cavity for containing alkali liquid; the transfer component is arranged in the alkali liquid cavity, and is used for the wire mesh entering the alkali liquid cavity to be transferred in a serpentine shape; the bubbling component is arranged at the bottom of the alkali washing tank, and is used for bubbling bubbles into the alkali liquid cavity; the circulating cleaning component is connected with the alkali liquid cavity, and is used for circulating the alkali liquid and cleaning the impurities in the alkali liquid; The first wind shear unit is used to blow the surface of the wire mesh after alkali washing to remove the residual alkali solution on the wire mesh; the water washing unit is used to spray and rinse the wire mesh; the second wind shear unit is used to remove the residual water on the surface of the wire mesh; the drying unit is used to dry the wire mesh; Wherein, the bubbling assembly includes a filter screen, a main ventilation pipe, a sub-ventilation pipe and a support block; the filter screen is arranged at the bottom of the alkali liquid chamber and is inclined, the filter screen has a highest end and a lowest end, and the filter screen divides the alkali liquid chamber into a dealuminization chamber and an auxiliary chamber distributed up and down; the main ventilation pipe is arranged outside the alkali washing tank and is arranged along the second direction; there are a plurality of sub-ventilation pipes, each of which is arranged in the auxiliary chamber, each of which is arranged along the first direction and is arranged at intervals along the second direction, one end of each sub-ventilation pipe extends out of the alkali washing tank and is connected with the main ventilation pipe, and a plurality of air outlets are evenly distributed on the side wall of each sub-ventilation pipe; there are a plurality of support blocks, each of which is arranged one by one with each sub-ventilation pipe, for supporting each sub-ventilation pipe, and forming a material storage space between any two connected support blocks.

2. The screen alkali washing device used as an electrode according to claim 1, characterized in that, The transfer assembly comprises a plurality of guide rollers, each of which is used for providing the wire mesh with a serpentine arrangement.

3. The screen alkali washing device used as an electrode according to claim 1, characterized in that, The alkali washing tank is provided with a liquid inlet and a liquid outlet connected to the circulating cleaning component; there are multiple liquid inlets, each of which is spaced apart along the first direction, and each of the liquid inlets is located on the side wall of the alkali liquid tank corresponding to the highest end of the filter, and is connected to the auxiliary cavity, and the height of each liquid inlet is higher than the height of each sub-ventilation pipe, which is used to fill the auxiliary cavity with alkali liquid along the first direction; there are multiple liquid outlets, each of which is spaced apart along the first direction, and each of the liquid outlets is located on the side wall of the alkali liquid tank corresponding to the lowest end of the filter, and is connected to the dealuminization cavity.

4. The screen alkali washing device used as an electrode according to claim 1, characterized in that, The bottom of the alkali washing tank is provided with a guide inclined surface inclined along a first direction, and the guide inclined surface has a highest end and a lowest end; a plurality of discharge ports are provided on the side wall of the alkali washing tank corresponding to the lowest end of the guide inclined surface, and each of the discharge ports is connected to each of the material storage spaces one by one; Wherein, each of the discharge ports is detachably connected with a sealing baffle for sealing the discharge ports.

5. The wire mesh alkali washing device used as an electrode according to claim 3, characterized in that, The circulating cleaning assembly includes an oil scraper, a filter, and a circulating pump; the oil scraper has an oil scraper inlet and an oil scraper outlet, and the oil scraper inlet is communicated with each of the liquid outlets; the filter has a filter inlet and a filter outlet, and the filter inlet is communicated with the oil scraper outlet; the circulating pump has a circulating pump inlet and a circulating pump outlet, the circulating pump inlet is communicated with the filter outlet, and the circulating pump outlet is communicated with each of the liquid inlets.

6. The screen alkali washing device used as an electrode according to claim 1, characterized in that, The first air shear unit includes a first liquid storage tank and a first fan; the first liquid storage tank has a first cavity for the wire mesh to pass through horizontally; the first fan is located in the first cavity and above the wire mesh, and is used for blowing air vertically on the wire mesh during the transfer of the wire mesh.

7. The screen alkali washing device used as an electrode according to claim 6, characterized in that, The second air shear unit includes a second liquid storage tank and a second fan; the second liquid storage tank has a second cavity for the wire mesh to pass through horizontally; the second fan is located in the second cavity and above the wire mesh, and the power of the second fan is greater than that of the first fan, and is used for blowing air vertically on the wire mesh during the transfer of the wire mesh.

8. The screen alkali washing device used as an electrode according to claim 1, characterized in that, The water washing unit includes a third liquid storage tank, a spray head, and a pressure pump; the third liquid storage tank has a third cavity for the wire mesh to pass through horizontally; a plurality of spray heads are provided, and each of the spray heads is arranged at intervals along the width direction of the wire mesh and is located above the wire mesh, and is used for flushing the wire mesh during the transfer of the wire mesh.

9. The screen alkali washing device used as an electrode according to claim 1, characterized in that, The drying unit includes an air box and a hot air blower; the air box has a drying cavity for the wire mesh to pass through horizontally; the hot air blower is arranged in the drying cavity and is used for sending hot air into the drying cavity to dry the wire mesh.

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