Anti-corrosion method for cathode plate for hydrometallurgical zinc electrodeposition

Abstract

The present invention relates to the field of cathode plate corrosion protection technology, and disclosed is an anti-corrosion method for a cathode plate for hydrometallurgical zinc electrodeposition. The present invention comprises the following steps: first using a roughening device to automatically roughen two side edges and a liquid-level area of a cathode plate; then using a surface cleaner to clean the surface of the cathode plate; then using a diluent and a ZL263 (A+B) adhesive to brush the cathode plate twice; then applying a polymeric anti-corrosion material to the adhesive; and then using a fixture to fix and shape the cathode plate. In the present invention, a roughening device is used to automatically roughen two side edges and a liquid-level area of a cathode plate, so that a polymeric anti-corrosion material can be adhered to the cathode plate more stably, and the cathode plate to which the polymeric anti-corrosion material is applied can be fixed and shaped by means of a fixture, so that the polymeric anti-corrosion material is more closely adhered to the cathode plate, thereby improving the anti-corrosion performance.

Description

A corrosion protection method for cathode plates used in hydrometallurgical zinc electrowinning Technical Field

[0001] This invention belongs to the field of cathode plate corrosion protection technology, and in particular relates to a corrosion protection method for cathode plates used in hydrometallurgical zinc electrowinning. Background Technology

[0002] In hydrometallurgical processes, the cathode plate, as the cathode of the electrolytic reaction, is responsible for receiving metal ions migrating from the electrolyte and reducing them to metal on the surface of the cathode plate. Since the cathode plate may be corroded during the electrolysis process, affecting its conductivity and metal deposition effect, it is necessary to perform anti-corrosion treatment on the cathode plate. Anti-corrosion treatment helps to extend the service life of the cathode plate and ensure the stability of the electrolysis process and the efficiency of metal extraction.

[0003] To extend the service life of cathode plates, it is usually necessary to coat their surface with an anti-corrosion and insulating layer. However, with the continuous use of cathode plates, the existing anti-corrosion and insulating layer is prone to peeling off, which will affect the service life and performance of the cathode plate.

[0004] To address these issues, we provide a corrosion protection method for cathode plates used in hydrometallurgical zinc electrowinning. Technical issues

[0005] The purpose of this invention is to provide a corrosion protection method for cathode plates used in hydrometallurgical zinc electrowinning. By using a grinding device to automatically grind the two sides and the liquid surface of the cathode plate, and by using a fixing crossbeam to fix and shape the cathode plate with applied polymer anti-corrosion material, the problem of easy peeling off of the insulating anti-corrosion layer of existing cathode plates is solved. Solution

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0007] This invention relates to a corrosion protection method for cathode plates used in hydrometallurgical zinc electrowinning, comprising the following steps:

[0008] S1. Use a grinding device to automatically grind the two sides of the cathode plate and the liquid level.

[0009] S2. Clean the surface of the cathode plate using a surface cleaner;

[0010] S3. Apply two coats of thinner and ZL263(A+B) colloid to the cathode plate.

[0011] S4. Apply polymeric anti-corrosion materials to the colloid;

[0012] S5. Use a fixed crossbar to fix and shape the cathode plate.

[0013] The present invention is further configured such that the grinding equipment includes a base frame, a side grinding component, a spacing adjustment component, and a liquid level grinding component. The spacing adjustment component and the liquid level grinding component are both disposed on the top of the base frame. The top of the spacing adjustment component is provided with four support components, and the side grinding component is disposed on the top of the spacing adjustment component.

[0014] The side grinding assembly includes a first bracket, a lower drive motor fixedly connected to the outer side of the first bracket, a lower rotating shaft rotatably connected inside the first bracket and fixedly connected to the output end of the lower drive motor, a lower grinding wheel fixedly connected to the other end of the lower rotating shaft, a slider movably sleeved inside the first bracket, an upper rotating shaft rotatably connected inside the slider, an upper drive motor fixedly connected to the outer side of the slider and fixedly connected to the output end of the upper drive motor, and an upper grinding wheel fixedly connected to the other end of the upper rotating shaft.

[0015] The liquid level polishing assembly includes two second supports, both of which are fixedly connected to the top of the base frame. A sliding seat is slidably connected inside the two second supports, and an upper polishing roller is rotatably connected inside the sliding seat. A movable motor is fixedly connected to the side of the sliding seat, and the upper polishing roller is fixedly connected to the output end of the movable motor. A lower polishing roller is rotatably connected between the two second supports. A fixed motor is fixedly connected to the side of one of the second supports, and the lower polishing roller is fixedly connected to the output end of the fixed motor.

[0016] The invention is further configured such that a top cover is fixedly connected to the top of the first bracket, a first screw is threaded into the inside of the top cover, and the first screw is rotatably connected to the top of the slider, and a first handwheel is fixedly connected to the top of the first screw.

[0017] The invention is further configured such that a sealing plate is fixedly connected to the top of the two second brackets, a second screw is threaded into the inner part of the sealing plate, and the second screw is rotatably connected to the inside of the sliding seat, and a second handwheel is fixedly connected to the top of the second screw.

[0018] The present invention is further configured such that the spacing adjustment component includes two mounting plates, two first brackets are respectively fixedly connected to the top of the two mounting plates, and threaded sleeves and multiple limit seats are fixedly connected to the bottom of the two mounting plates. The limit seats are movably engaged with the inside of the base frame, and two adjusting screws are rotatably connected inside the base frame. The threaded sleeves are threadedly engaged with the outside of the corresponding adjusting screws, and adjusting handwheels are fixedly connected to the outside of the two adjusting screws.

[0019] The present invention is further configured such that the support component includes a fixed base, the fixed base is fixedly connected to the top of the mounting plate, an L-plate is fixedly connected to the inner side of the fixed base, and a plurality of rollers are rotatably connected to the inner side of the L-plate.

[0020] The present invention is further configured such that the fixing crossbar includes a mounting base plate, two side clamps, a top clamp, and a moving component;

[0021] The mounting base includes a base frame, and the top of the base frame is fixedly connected to a mounting bracket and two upright plates;

[0022] The side clamp includes a lower clamping plate, which is located on top of two upright plates. A side plate is fixedly connected to the top of the lower clamping plate, and two first fixing sleeves are fixedly connected to the bottom of the lower clamping plate. An upper clamping plate is movably sleeved on the outside of the side plate, and two first fixing bolts are movably sleeved inside the upper clamping plate. The two first fixing bolts are threaded into the inside of the corresponding first fixing sleeves.

[0023] The top clamp includes a fixed clamp plate and a movable clamp plate. The fixed clamp plate is fixedly connected to the top of the bottom frame. Two second fixed sleeves are fixedly connected to the top of the bottom frame. Two second fixed bolts are movably sleeved inside the movable clamp plate, and the two second fixed bolts are threaded into the interior of the corresponding second fixed sleeves.

[0024] The invention is further configured such that the moving component includes two rotating seats, both of which are fixedly connected to the top of the base frame. A double-threaded screw is rotatably connected inside the two rotating seats. A third handwheel is fixedly connected to both ends of the double-threaded screw. A clamping plate is fixedly connected to the bottom of the two lower clamping plates, and both clamping plates are threaded onto the outside of the double-threaded screw.

[0025] The invention is further configured such that the card plate is I-shaped and located between two upright plates. Beneficial effects

[0026] The present invention has the following beneficial effects:

[0027] 1. This invention uses a grinding device to automatically grind the two sides and the liquid surface of the cathode plate. By grinding the two sides and the liquid surface of the cathode plate, the adhesion between the polymer anti-corrosion material and the cathode plate can be made more stable.

[0028] 2. The present invention can fix the cathode plate to which the polymer anti-corrosion material is applied by fixing crossbeams, and can apply pressure to the polymer anti-corrosion material, thereby making the polymer anti-corrosion material adhere more tightly to the cathode plate.

[0029] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 is a process flow diagram of the present invention.

[0032] Figure 2 is a three-dimensional structural diagram of the grinding equipment.

[0033] Figure 3 is a schematic diagram of the bottom structure of the mounting plate.

[0034] Figure 4 is a schematic diagram of the supporting components.

[0035] Figure 5 is an exploded structural diagram of the side grinding component.

[0036] Figure 6 is an exploded structural diagram of the liquid level grinding assembly.

[0037] Figure 7 is a three-dimensional structural diagram of the fixed crossbar.

[0038] Figure 8 is a schematic diagram of the top clamp.

[0039] The attached diagram lists the components represented by each number as follows:

[0040] 100. Base frame; 200. Side grinding assembly; 201. First support; 202. Lower rotating shaft; 203. Lower grinding wheel; 204. Lower drive motor; 205. Slider; 206. Upper rotating shaft; 207. Upper grinding wheel; 208. Upper drive motor; 209. Top cover; 210. First screw; 211. First handwheel; 300. Spacing adjustment assembly; 301. Mounting plate; 302. Threaded sleeve; 303. 304. Adjusting screw; 305. Adjusting handwheel; 406. Limiting seat; 407. Support assembly; 408. Fixed seat; 409. L-plate; 400. Roller; 500. Liquid level grinding assembly; 501. Second bracket; 502. Lower grinding roller; 503. Fixed motor; 504. Sliding seat; 505. Upper grinding roller; 506. Movable motor; 507. Sealing plate; 508. Second screw; 509. Second handwheel; 600. Mounting base plate; 601. Base frame; 602. Vertical plate; 603. Fixing frame; 700. Side clamp; 701. Lower clamping plate; 702. Side plate; 703. Upper clamping plate; 704. First fixing sleeve; 705. First fixing bolt; 800. Top clamp; 801. Fixing clamping plate; 802. Movable clamping plate; 803. Second fixing sleeve; 804. Second fixing bolt; 900. Moving assembly; 901. Rotating seat; 902. Double-threaded screw; 903. Clamping plate; 904. Third handwheel. The best embodiment of the present invention Example

[0041] Please refer to Figures 7-8. Based on specific embodiment one and specific embodiment two, the fixed crossbeam includes a mounting base plate 600, two side clamps 700, a top clamp 800, and a moving component 900.

[0042] The mounting base 600 includes a base frame 601, and the top of the base frame 601 is fixedly connected to a fixing bracket 603 and two upright plates 602.

[0043] The side clamp 700 includes a lower clamping plate 701, which is located on top of two upright plates 602. The top of the lower clamping plate 701 is fixedly connected to the side plate 702, and the bottom of the lower clamping plate 701 is fixedly connected to two first fixing sleeves 704. An upper clamping plate 703 is movably sleeved on the outside of the side plate 702, and two first fixing bolts 705 are movably sleeved inside the upper clamping plate 703. The two first fixing bolts 705 are respectively threaded into the inside of the corresponding first fixing sleeves 704. By rotating the two first fixing bolts 705, the upper clamping plate 703 can fix and clamp the side of the cathode plate, thereby making the polymer anti-corrosion material fit more tightly with the side of the cathode plate.

[0044] The top clamp 800 includes a fixed clamping plate 801 and a movable clamping plate 802. The fixed clamping plate 801 is fixedly connected to the top of the bottom frame 601. Two second fixed sleeves 803 are fixedly connected to the top of the bottom frame 601. Two second fixed bolts 804 are movably sleeved inside the movable clamping plate 802, and the two second fixed bolts 804 are respectively threaded into the inside of the corresponding second fixed sleeves 803. By rotating the two second fixed bolts 804, the movable clamping plate 802 can clamp the polymer anti-corrosion material at the liquid level of the cathode plate, thereby making the polymer anti-corrosion material fit more tightly with the liquid level of the cathode plate.

[0045] Specifically, the movable component 900 includes two rotating seats 901, both of which are fixedly connected to the top of the base frame 601. A double-threaded screw 902 is rotatably connected inside the two rotating seats 901. A third handwheel 904 is fixedly connected to both ends of the double-threaded screw 902. A clamping plate 903 is fixedly connected to the bottom of the two lower clamping plates 701, and the two clamping plates 903 are threaded onto the outside of the double-threaded screw 902. The distance between the two side clamps 700 can be adjusted by rotating the third handwheel 904, thereby enabling the fixing of cathode plates of different widths.

[0046] Furthermore, the card plate 903 is I-shaped and is located between the two upright plates 602.

[0047] The operation process of this embodiment is as follows: When it is necessary to fix the cathode plate, firstly, the third handwheel 904 is rotated to drive the double-threaded screw 902. Then, under the action of the thread, the two lower clamping plates 701 can be moved, so that the distance between the two lower clamping plates 701 can be adjusted according to the size of the cathode plate. Then, the cathode plate is placed on top of the two lower clamping plates 701 and the fixed clamping plate 801. Then, the upper clamping plate 703 is installed above the lower clamping plates 701. Then, the two first fixing bolts 705 are rotated to fix and clamp the side of the cathode plate with the upper clamping plate 703. Then, the movable clamping plate 802 is installed above the fixed clamping plate 801. Then, the two second fixing bolts 804 are rotated to clamp the cathode plate with the movable clamping plate 802. The cathode plate can be fixed by the squeezing of the upper clamping plate 703 and the movable clamping plate 802. At the same time, a certain pressure can be applied to the polymer anti-corrosion material, so that the polymer anti-corrosion material and the cathode plate are more tightly bonded. Embodiments of the present invention

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0049] Please refer to Figure 1. This invention relates to a method for preventing corrosion of a cathode plate used in hydrometallurgical zinc electrowinning, comprising the following steps:

[0050] S1. The two sides and liquid surface of the cathode plate are automatically roughened using a roughening device. The roughening of the two sides and liquid surface of the cathode plate makes the polymer anti-corrosion material bond to the cathode plate more stably.

[0051] S2. Use a surface cleaner to clean the surface of the cathode plate. Cleaning the surface of the cathode plate can remove small debris and dirt.

[0052] S3. Apply two coats of thinner and ZL263(A+B) colloid to the cathode plate. The use of thinner and ZL263(A+B) colloid can increase the adhesion stability.

[0053] S4. Apply a polymeric anti-corrosion material to the colloid. The polymeric anti-corrosion material can protect the surface of the cathode plate and prevent the surface of the cathode plate from being corroded.

[0054] S5. Use a fixing crossbar to fix the cathode plate. The fixing crossbar can fix the cathode plate with the applied polymer anti-corrosion material and apply pressure to the polymer anti-corrosion material, so that the polymer anti-corrosion material and the cathode plate are more tightly bonded. Example

[0055] Please refer to Figures 2-6. Based on the first specific embodiment, the grinding equipment includes a base frame 100, a side grinding component 200, a spacing adjustment component 300, and a liquid level grinding component 500. The spacing adjustment component 300 and the liquid level grinding component 500 are both located on the top of the base frame 100. The top of the spacing adjustment component 300 is provided with four support components 400, and the side grinding component 200 is located on the top of the spacing adjustment component 300.

[0056] The side polishing assembly 200 includes a first bracket 201, a lower drive motor 204 fixedly connected to the outer side of the first bracket 201, a lower rotating shaft 202 rotatably connected inside the first bracket 201, and the lower rotating shaft 202 fixedly connected to the output end of the lower drive motor 204. A lower polishing wheel 203 is fixedly connected to the other end of the lower rotating shaft 202. A slider 205 is movably sleeved inside the first bracket 201. An upper rotating shaft 206 is rotatably connected inside the slider 205. An upper drive motor 208 is fixedly connected to the outer side of the slider 205, and the upper rotating shaft 206 is fixedly connected to the output end of the upper drive motor 208. An upper polishing wheel 207 is fixedly connected to the other end of the upper rotating shaft 206. The side of the cathode plate can be polished by the rapid rotation of the upper polishing wheel 207 and the lower polishing wheel 203.

[0057] The liquid level polishing assembly 500 includes two second supports 501, both of which are fixedly connected to the top of the base frame 100. A sliding seat 504 is slidably connected inside the two second supports 501, and an upper polishing roller 505 is rotatably connected inside the sliding seat 504. A movable motor 506 is fixedly connected to the side of the sliding seat 504, and the upper polishing roller 505 is fixedly connected to the output end of the movable motor 506. A lower polishing roller 502 is rotatably connected between the two second supports 501. A fixed motor 503 is fixedly connected to the side of one of the second supports 501, and the lower polishing roller 502 is fixedly connected to the output end of the fixed motor 503. The liquid level of the cathode plate can be polished by the rapid rotation of the lower polishing roller 502 and the upper polishing roller 505.

[0058] Specifically, a top cover 209 is fixedly connected to the top of the first bracket 201, and a first screw 210 is threaded inside the top cover 209. The first screw 210 is rotatably connected to the top of the slider 205, and a first handwheel 211 is fixedly connected to the top of the first screw 210.

[0059] The top of the two second brackets 501 is fixedly connected to a sealing plate 507. The sealing plate 507 is threaded with a second screw 508, and the second screw 508 is rotatably connected to the inside of the sliding seat 504. The top of the second screw 508 is fixedly connected to a second handwheel 509. By rotating the first handwheel 211 and the second handwheel 509, the distance between the upper grinding wheel 207 and the lower grinding wheel 203, as well as the distance between the lower grinding roller 502 and the upper grinding roller 505, can be adjusted, thereby enabling the grinding of cathode plates of different thicknesses.

[0060] The spacing adjustment assembly 300 includes two mounting plates 301, and two first brackets 201 are fixedly connected to the top of the two mounting plates 301 respectively. Threaded sleeves 302 and multiple limiting seats 305 are fixedly connected to the bottom of each of the two mounting plates 301. The limiting seats 305 are movably engaged inside the base frame 100. Two adjusting screws 303 are rotatably connected inside the base frame 100, and the threaded sleeves 302 are threaded onto the outside of the corresponding adjusting screws 303. Adjusting handwheels 304 are fixedly connected to the outside of each of the two adjusting screws 303. By rotating the adjusting handwheels 304, the spacing between the two side grinding assemblies 200 can be adjusted, thereby enabling grinding of cathode plates of different widths.

[0061] Furthermore, the support assembly 400 includes a fixing base 401, which is fixedly connected to the top of the mounting plate 301. An L-plate 402 is fixedly connected to the inner side of the fixing base 401, and multiple rollers 403 are rotatably connected to the inner side of the L-plate 402. The multiple rollers 403 can reduce the resistance to the movement of the cathode plate.

[0062] The operation process of this embodiment is as follows: When it is necessary to polish the two sides of the cathode plate and the liquid level surface, firstly, by rotating the first handwheel 211 and the second handwheel 509, the distance between the upper polishing wheel 207 and the lower polishing wheel 203, as well as the distance between the lower polishing roller 502 and the upper polishing roller 505, can be adjusted. Then, by rotating the two adjusting handwheels 304, the corresponding adjusting screws 303 can be rotated, thereby adjusting the distance between the two mounting plates 301 according to the width of the cathode plate. Subsequently, the lower drive motor 204 and the upper drive motor 208 are started. Then, the lower drive motor 204 and the upper drive motor 208 drive the lower polishing wheel 203 and the upper polishing wheel 207 respectively. Finally, the fixed motor 50 is started. 3 and the movable motor 506 drive the lower grinding roller 502 and the upper grinding roller 505 respectively. Then, the cathode plate is placed on the corresponding two L plates 402, and then the cathode plate is pushed forward. When the cathode plate passes the lower grinding roller 203 and the upper grinding roller 207, the sides of the cathode plate can be ground by the rapid rotation of the upper grinding roller 207 and the lower grinding roller 203. Then, the cathode plate is pushed forward so that the cathode plate enters between the lower grinding roller 502 and the upper grinding roller 505, thereby achieving grinding of the liquid level of the cathode plate. This allows for rapid grinding of both sides of the cathode plate and the liquid level, thus making the polymer anti-corrosion material bond more stably with the cathode plate. Example

[0063] Please refer to Figures 7-8. Based on specific embodiment one and specific embodiment two, the fixed crossbeam includes a mounting base plate 600, two side clamps 700, a top clamp 800, and a moving component 900.

[0064] The mounting base 600 includes a base frame 601, and the top of the base frame 601 is fixedly connected to a fixing bracket 603 and two upright plates 602.

[0065] The side clamp 700 includes a lower clamping plate 701, which is located on top of two upright plates 602. The top of the lower clamping plate 701 is fixedly connected to the side plate 702, and the bottom of the lower clamping plate 701 is fixedly connected to two first fixing sleeves 704. An upper clamping plate 703 is movably sleeved on the outside of the side plate 702, and two first fixing bolts 705 are movably sleeved inside the upper clamping plate 703. The two first fixing bolts 705 are respectively threaded into the inside of the corresponding first fixing sleeves 704. By rotating the two first fixing bolts 705, the upper clamping plate 703 can fix and clamp the side of the cathode plate, thereby making the polymer anti-corrosion material fit more tightly with the side of the cathode plate.

[0066] The top clamp 800 includes a fixed clamping plate 801 and a movable clamping plate 802. The fixed clamping plate 801 is fixedly connected to the top of the bottom frame 601. Two second fixed sleeves 803 are fixedly connected to the top of the bottom frame 601. Two second fixed bolts 804 are movably sleeved inside the movable clamping plate 802, and the two second fixed bolts 804 are respectively threaded into the inside of the corresponding second fixed sleeves 803. By rotating the two second fixed bolts 804, the movable clamping plate 802 can clamp the polymer anti-corrosion material at the liquid level of the cathode plate, thereby making the polymer anti-corrosion material fit more tightly with the liquid level of the cathode plate.

[0067] Specifically, the movable component 900 includes two rotating seats 901, both of which are fixedly connected to the top of the base frame 601. A double-threaded screw 902 is rotatably connected inside the two rotating seats 901. A third handwheel 904 is fixedly connected to both ends of the double-threaded screw 902. A clamping plate 903 is fixedly connected to the bottom of the two lower clamping plates 701, and the two clamping plates 903 are threaded onto the outside of the double-threaded screw 902. The distance between the two side clamps 700 can be adjusted by rotating the third handwheel 904, thereby enabling the fixing of cathode plates of different widths.

[0068] Furthermore, the card plate 903 is I-shaped and is located between the two upright plates 602.

[0069] The operation process of this embodiment is as follows: When it is necessary to fix the cathode plate, firstly, the third handwheel 904 is rotated to drive the double-threaded screw 902. Then, under the action of the thread, the two lower clamping plates 701 can be moved, so that the distance between the two lower clamping plates 701 can be adjusted according to the size of the cathode plate. Then, the cathode plate is placed on top of the two lower clamping plates 701 and the fixed clamping plate 801. Then, the upper clamping plate 703 is installed above the lower clamping plates 701. Then, the two first fixing bolts 705 are rotated to fix and clamp the side of the cathode plate with the upper clamping plate 703. Then, the movable clamping plate 802 is installed above the fixed clamping plate 801. Then, the two second fixing bolts 804 are rotated to clamp the cathode plate with the movable clamping plate 802. The cathode plate can be fixed by the squeezing of the upper clamping plate 703 and the movable clamping plate 802. At the same time, a certain pressure can be applied to the polymer anti-corrosion material, so that the polymer anti-corrosion material and the cathode plate are more tightly bonded.

[0070] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0071] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents. Industrial applicability

[0072] 1. This invention uses a grinding device to automatically grind the two sides and the liquid surface of the cathode plate. By grinding the two sides and the liquid surface of the cathode plate, the adhesion between the polymer anti-corrosion material and the cathode plate can be made more stable.

[0073] 2. The present invention can fix the cathode plate to which the polymer anti-corrosion material is applied by fixing crossbeams, and can apply pressure to the polymer anti-corrosion material, thereby making the polymer anti-corrosion material adhere more tightly to the cathode plate.

[0074] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time.

Claims

1. A method for corrosion protection of cathode plates used in hydrometallurgical zinc electrowinning, characterized in that, Includes the following steps: S1. Use a grinding device to automatically grind the two sides of the cathode plate and the liquid level. S2. Clean the surface of the cathode plate using a surface cleaner; S3. Apply two coats of thinner and ZL263(A+B) colloid to the cathode plate. S4. Apply polymeric anti-corrosion materials to the colloid; S5. Use a fixed crossbar to fix and shape the cathode plate.

2. The corrosion protection method for a cathode plate used in hydrometallurgical zinc electrowinning according to claim 1, characterized in that, The grinding equipment includes a base frame (100), a side grinding assembly (200), a spacing adjustment assembly (300), and a liquid level grinding assembly (500). The spacing adjustment assembly (300) and the liquid level grinding assembly (500) are both located on the top of the base frame (100). The top of the spacing adjustment assembly (300) is provided with four support assemblies (400). The side grinding assembly (200) is located on the top of the spacing adjustment assembly (300). The side polishing assembly (200) includes a first bracket (201), a lower drive motor (204) is fixedly connected to the outer side of the first bracket (201), a lower rotating shaft (202) is rotatably connected inside the first bracket (201), and the lower rotating shaft (202) is fixedly connected to the output end of the lower drive motor (204). The other end of the lower rotating shaft (202) is fixedly connected to a lower polishing wheel (203). A slider (205) is movably sleeved inside the first bracket (201). An upper rotating shaft (206) is rotatably connected inside the slider (205). An upper drive motor (208) is fixedly connected to the outer side of the slider (205), and the upper rotating shaft (206) is fixedly connected to the output end of the upper drive motor (208). The other end of the upper rotating shaft (206) is fixedly connected to an upper polishing wheel (207). The liquid level polishing assembly (500) includes two second supports (501), both of which are fixedly connected to the top of the base frame (100). A sliding seat (504) is slidably connected inside the two second supports (501). An upper polishing roller (505) is rotatably connected inside the sliding seat (504). A movable motor (506) is fixedly connected to the side of the sliding seat (504), and the upper polishing roller (505) is fixedly connected to the output end of the movable motor (506). A lower polishing roller (502) is rotatably connected between the two second supports (501). A fixed motor (503) is fixedly connected to the side of one of the second supports (501), and the lower polishing roller (502) is fixedly connected to the output end of the fixed motor (503).

3. A method for corrosion protection of a cathode plate used in hydrometallurgical zinc electrowinning according to claim 2, characterized in that, The top of the first bracket (201) is fixedly connected to a top cover (209), and the top cover (209) is threaded with a first screw (210), and the first screw (210) is rotatably connected to the top of the slider (205). The top of the first screw (210) is fixedly connected to a first handwheel (211).

4. A method for corrosion protection of a cathode plate used in hydrometallurgical zinc electrowinning according to claim 2, characterized in that, A sealing plate (507) is fixedly connected to the top of the two second brackets (501). A second screw (508) is threaded inside the sealing plate (507), and the second screw (508) is rotatably connected to the inside of the sliding seat (504). A second handwheel (509) is fixedly connected to the top of the second screw (508).

5. A method for corrosion protection of a cathode plate used in hydrometallurgical zinc electrowinning according to claim 2, characterized in that, The spacing adjustment assembly (300) includes two mounting plates (301), two first brackets (201) are fixedly connected to the top of the two mounting plates (301), and threaded sleeves (302) and multiple limit seats (305) are fixedly connected to the bottom of the two mounting plates (301). The limit seats (305) are movably engaged inside the base frame (100). Two adjusting screws (303) are rotatably connected inside the base frame (100), and the threaded sleeves (302) are threaded onto the outside of the corresponding adjusting screws (303). Adjusting handwheels (304) are fixedly connected to the outside of the two adjusting screws (303).

6. A method for corrosion protection of a cathode plate used in hydrometallurgical zinc electrowinning according to claim 5, characterized in that, The support assembly (400) includes a fixed base (401), which is fixedly connected to the top of the mounting plate (301). An L-plate (402) is fixedly connected to the inner side of the fixed base (401), and a plurality of rollers (403) are rotatably connected to the inner side of the L-plate (402).

7. A method for corrosion protection of a cathode plate used in hydrometallurgical zinc electrowinning according to claim 1, characterized in that, The fixed crossbar includes a mounting base plate (600), two side clamps (700), a top clamp (800), and a moving assembly (900); The mounting base plate (600) includes a base frame (601), and a fixing bracket (603) and two upright plates (602) are fixedly connected to the top of the base frame (601); The side clamp (700) includes a lower clamping plate (701), which is located on top of two upright plates (602). A side plate (702) is fixedly connected to the top of the lower clamping plate (701), and two first fixing sleeves (704) are fixedly connected to the bottom of the lower clamping plate (701). An upper clamping plate (703) is movably sleeved on the outside of the side plate (702), and two first fixing bolts (705) are movably sleeved inside the upper clamping plate (703). The two first fixing bolts (705) are respectively threaded into the inside of the corresponding first fixing sleeves (704). The top clamp (800) includes a fixed clamping plate (801) and a movable clamping plate (802). The fixed clamping plate (801) is fixedly connected to the top of the bottom frame (601). The top of the bottom frame (601) is fixedly connected to two second fixed sleeves (803). The movable clamping plate (802) is movably fitted with two second fixed bolts (804), and the two second fixed bolts (804) are respectively threaded into the interior of the corresponding second fixed sleeves (803).

8. A method for corrosion protection of a cathode plate used in hydrometallurgical zinc electrowinning according to claim 7, characterized in that, The moving component (900) includes two rotating seats (901), both of which are fixedly connected to the top of the base frame (601). A double-threaded screw (902) is rotatably connected inside the two rotating seats (901). A third handwheel (904) is fixedly connected to both ends of the double-threaded screw (902). A clamping plate (903) is fixedly connected to the bottom of the two lower clamping plates (701), and both clamping plates (903) are threaded onto the outside of the double-threaded screw (902).

9. A method for corrosion protection of a cathode plate used in hydrometallurgical zinc electrowinning according to claim 8, characterized in that, The card plate (903) is I-shaped and is located between two upright plates (602).

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