A method for preventing corrosion of a cathode plate for zinc electrowinning by hydrometallurgy

Abstract

The application discloses a kind of wet metallurgy zinc electrodeposition cathode plate anticorrosion method, it is related to cathode plate anticorrosion technical field.The present application includes the following steps: first using abrasive equipment to the two sides and liquid level of cathode plate are automatically roughened and treated;Subsequently using surface cleaning agent to the surface of cathode plate is cleaned and treated;Then using diluent, ZL263 (A+B) colloidal is coated to cathode plate twice;After that, high molecular anticorrosion material is applied on the colloidal;Subsequently using fixed horizontal tool to cathode plate is fixed and shaped.The present application can make that high molecular anticorrosion material and cathode plate adhere more stably by using abrasive equipment to the two sides and liquid level of cathode plate are automatically roughened and treated, by fixed horizontal tool, the cathode plate to which high molecular anticorrosion material is applied can be fixed and shaped, so that high molecular anticorrosion material and cathode plate are more closely attached, and the anticorrosion performance is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cathode plate corrosion prevention, and particularly relates to a method for preventing corrosion of a cathode plate for zinc electro-deposition in a hydrometallurgical process. BACKGROUND

[0002] In a hydrometallurgical process, the cathode plate, as the cathode of an electrolytic reaction, is responsible for receiving metal ions migrated from the electrolyte and reducing them to metal on the surface of the cathode plate. Since the cathode plate may be corroded during the electrolytic process, affecting its conductivity and metal deposition effect, the cathode plate must be subjected to corrosion prevention treatment, which helps to prolong the service life of the cathode plate and ensure the stability of the electrolytic process and the efficiency of metal extraction.

[0003] In order to prolong the service life of the cathode plate, it is usually necessary to coat a corrosion-resistant insulating layer on the surface of the cathode plate. However, with the continuous use of the cathode plate, the existing corrosion-resistant insulating layer is prone to falling off, which will affect the service life and performance of the cathode plate.

[0004] Therefore, we provide a method for preventing corrosion of a cathode plate for zinc electro-deposition in a hydrometallurgical process to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a method for preventing corrosion of a cathode plate for zinc electro-deposition in a hydrometallurgical process, which solves the problem of easy falling off of the existing insulating corrosion-resistant layer of the cathode plate by using a roughening device to automatically roughen the two side edges and the liquid level of the cathode plate, and by using a fixed cross to fix and shape the cathode plate coated with a high molecular corrosion-resistant material.

[0006] To solve the above technical problems, the present application is realized by the following technical scheme:

[0007] The present application is a method for preventing corrosion of a cathode plate for zinc electro-deposition in a hydrometallurgical process, comprising the following steps:

[0008] S1. Using a roughening device to automatically roughen the two side edges and the liquid level of the cathode plate;

[0009] S2. Using a surface cleaner to clean the surface of the cathode plate;

[0010] S3. Using a diluent and ZL263 (A+B) colloid to coat the cathode plate twice;

[0011] S4. Applying a high molecular corrosion-resistant material on the colloid;

[0012] S5. Using a fixed cross to fix and shape the cathode plate.

[0013] The roughening device further comprises a chassis, a side polishing assembly, a distance adjusting assembly and a liquid level polishing assembly, the distance adjusting assembly and the liquid level polishing assembly are arranged on the top of the chassis, four supporting assemblies are arranged on the top of the distance adjusting assembly, and the side polishing assembly is arranged on the top of the distance adjusting assembly.

[0014] The side polishing assembly comprises a first support, a lower driving motor is fixedly connected to the outer side of the first support, a lower rotating shaft is rotatably connected to the inner part of the first support, the lower rotating shaft is fixedly connected to the output end of the lower driving motor, a lower polishing wheel is fixedly connected to the other end of the lower rotating shaft, a sliding block is movably sleeved in the inner part of the first support, an upper rotating shaft is rotatably connected to the inner part of the sliding block, an upper driving motor is fixedly connected to the outer side of the sliding block, the upper rotating shaft is fixedly connected to the output end of the upper driving motor, and an upper polishing wheel is fixedly connected to the other end of the upper rotating shaft.

[0015] The liquid level polishing assembly comprises two second supports, the two second supports are fixedly connected to the top of the chassis, a sliding seat is slidably connected to the inner part of the two second supports, an upper polishing roller is rotatably connected to the inner part of the sliding seat, a movable motor is fixedly connected to the side of the sliding seat, 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, and a fixed motor is fixedly connected to the side of one of the two second supports, and the lower polishing roller is fixedly connected to the output end of the fixed motor.

[0016] The top of the first support is fixedly connected with a top cover, a first screw rod is threadedly sleeved in the inner part of the top cover, the first screw rod is rotatably connected to the top of the sliding block, and a first hand wheel is fixedly connected to the top of the first screw rod.

[0017] The top of the first support is fixedly connected with a top cover, a first screw rod is threadedly sleeved in the inner part of the top cover, the first screw rod is rotatably connected to the top of the sliding block, and a first hand wheel is fixedly connected to the top of the first screw rod.

[0018] The distance adjusting assembly comprises two mounting plates, the two first supports are fixedly connected to the top of the two mounting plates, the bottom of each of the two mounting plates is fixedly connected with a threaded sleeve and a plurality of limiting seats, the limiting seats are movably clamped in the inner part of the chassis, two adjusting screw rods are rotatably connected to the inner part of the chassis, the threaded sleeve is threadedly sleeved on the outer part of the corresponding adjusting screw rod, and the outer part of each of the two adjusting screw rods is fixedly connected with an adjusting hand wheel.

[0019] The supporting assembly comprises a fixing seat, the fixing seat is fixedly connected to the top of the mounting plate, an L-shaped plate is fixedly connected to the inner side of the fixing seat, and a plurality of rollers are rotatably connected to the inner side of the L-shaped plate.

[0020] The fixing cross is provided with a mounting bottom plate, two side edge clamps, a top clamp and a moving assembly;

[0021] The mounting bottom plate comprises a bottom frame, and a fixed frame and two vertical plates are fixedly connected to the top of the bottom frame;

[0022] The side edge clamp comprises a lower clamp plate, and the lower clamp plate is located at the top of the two vertical plates; the top of the lower clamp plate is fixedly connected with a side plate; the bottom of the lower clamp plate is fixedly connected with two first fixing sleeves; the outside of the side plate is movably sleeved with an upper clamp plate; the inside of the upper clamp plate is movably sleeved with two first fixing bolts; and the two first fixing bolts are respectively threadedly sleeved in the inside of the corresponding first fixing sleeve.

[0023] The top clamp comprises a fixed clamp plate and a movable clamp plate; the fixed clamp plate is fixedly connected to the top of the bottom frame; the top of the bottom frame is fixedly connected with two second fixing sleeves; the inside of the movable clamp plate is movably sleeved with two second fixing bolts; and the two second fixing bolts are respectively threadedly sleeved in the inside of the corresponding second fixing sleeve.

[0024] The moving assembly comprises two rotating seats, and the two rotating seats are fixedly connected to the top of the bottom frame; the inside of the two rotating seats is rotatably connected with a double-threaded screw; the two ends of the double-threaded screw are fixedly connected with a third hand wheel; the bottom of the two lower clamp plates is fixedly connected with a clamping plate; and the two clamping plates are threadedly sleeved on the outside of the double-threaded screw.

[0025] The clamping plate is in the shape of an I-beam, and the clamping plate is located between the two vertical plates.

[0026] The present application has the following advantages:

[0027] 1. The present application can automatically roughen the two side edges and the liquid level of the cathode plate by using the roughening device, and the high polymer corrosion-resistant material can be more stably bonded to the cathode plate by roughening the two side edges and the liquid level of the cathode plate.

[0028] 2. The present application can fix the cathode plate to which the high polymer corrosion-resistant material is applied, and can apply pressure to the high polymer corrosion-resistant material, so that the high polymer corrosion-resistant material is more closely attached to the cathode plate.

[0029] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the description of the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0031] Figure 1 Process flow diagram of the present application.

[0032] Figure 2 Schematic diagram of the three-dimensional structure of the roughening device.

[0033] Figure 3 Schematic diagram of the bottom structure of the mounting plate.

[0034] Figure 4 Schematic diagram of the structure of the support assembly.

[0035] Figure 5 Schematic diagram of the exploded structure of the side polishing assembly.

[0036] Figure 6 Schematic diagram of the exploded structure of the liquid level polishing assembly.

[0037] Figure 7 Schematic diagram of the three-dimensional structure of the fixed cross.

[0038] Figure 8 Schematic diagram of the structure of the top clamp.

[0039] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0040] 100, base frame; 200, side polishing assembly; 201, first support; 202, lower rotating shaft; 203, lower polishing wheel; 204, lower driving motor; 205, sliding block; 206, upper rotating shaft; 207, upper polishing wheel; 208, upper driving motor; 209, top cover; 210, first screw rod; 211, first hand wheel; 300, spacing adjusting assembly; 301, mounting plate; 302, threaded sleeve; 303, adjusting screw rod; 304, adjusting hand wheel; 305, limiting seat; 400, support assembly; 401, fixed seat; 402, L-shaped plate; 403, roller; 500, liquid level polishing assembly; 501, second support; 502, lower polishing roller; 503, fixed motor; 504, sliding seat; 505, upper polishing roller; 506, movable motor; 507, sealing plate; 508, second screw rod; 509, second hand wheel;

[0041] 600, mounting bottom plate; 601, bottom frame; 602, vertical plate; 603, fixing frame; 700, side edge clamp; 701, lower clamp plate; 702, side plate; 703, upper clamp plate; 704, first fixing sleeve; 705, first fixing bolt; 800, top clamp; 801, fixed clamp plate; 802, movable clamp plate; 803, second fixing sleeve; 804, second fixing bolt; 900, moving assembly; 901, rotating seat; 902, double thread screw; 903, clamping plate; 904, third hand wheel. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. EMBODIMENT

[0043] Referring to Figure 1 The present application is a kind of wet metallurgical zinc electrodeposition cathode plate corrosion prevention method, comprising the following steps:

[0044] S1, using a roughing device to automatically roughen the two side edges and liquid level of the cathode plate, roughening the two side edges and liquid level of the cathode plate can make the high polymer corrosion resistant material adhere to the cathode plate more stably;

[0045] S2, using a surface cleaner to clean the surface of the cathode plate, cleaning the surface of the cathode plate can remove small debris and dirt on the surface of the cathode plate;

[0046] S3, using a diluent, ZL263 (A+B) colloid to coat the cathode plate twice, using a diluent, ZL263 (A+B) colloid can increase the stability of adhesion;

[0047] S4, applying a high polymer corrosion resistant material to the colloid, the high polymer corrosion resistant material can protect the surface of the cathode plate from corrosion;

[0048] S5, using a fixed cross to fix the cathode plate, the fixed cross can fix the cathode plate to which the high polymer corrosion resistant material is applied, and can apply pressure to the high polymer corrosion resistant material, so that the high polymer corrosion resistant material adheres to the cathode plate more tightly. EMBODIMENT

[0049] Referring to Figures 2-6On the basis of the first embodiment, the roughening device comprises a chassis 100, a side polishing assembly 200, a spacing adjusting assembly 300 and a liquid level polishing assembly 500, the spacing adjusting assembly 300 and the liquid level polishing assembly 500 are arranged on the top of the chassis 100, four supporting assemblies 400 are arranged on the top of the spacing adjusting assembly 300, and the side polishing assembly 200 is arranged on the top of the spacing adjusting assembly 300;

[0050] The side polishing assembly 200 comprises a first support 201, a lower driving motor 204 is fixedly connected to the outer side of the first support 201, a lower rotating shaft 202 is rotatably connected to the inner side of the first support 201, the lower rotating shaft 202 is fixedly connected to the output end of the lower driving motor 204, a lower polishing wheel 203 is fixedly connected to the other end of the lower rotating shaft 202, a sliding block 205 is movably sleeved on the inner side of the first support 201, an upper rotating shaft 206 is rotatably connected to the inner side of the sliding block 205, an upper driving motor 208 is fixedly connected to the outer side of the sliding block 205, the upper rotating shaft 206 is fixedly connected to the output end of the upper driving motor 208, and an upper polishing wheel 207 is fixedly connected to the other end of the upper rotating shaft 206, the rapid rotation of the upper polishing wheel 207 and the lower polishing wheel 203 can polish the side edge of the cathode plate.

[0051] The liquid level polishing assembly 500 comprises two second supports 501, the two second supports 501 are fixedly connected to the top of the chassis 100, a sliding seat 504 is slidably connected to the inner side of the two second supports 501, an upper polishing roller 505 is rotatably connected to the inner side of the sliding seat 504, a movable motor 506 is fixedly connected to the side of the sliding seat 504, 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, the lower polishing roller 502 is fixedly connected to the output end of the fixed motor 503, and the rapid rotation of the lower polishing roller 502 and the upper polishing roller 505 can polish the liquid level of the cathode plate.

[0052] Specifically, a top cover 209 is fixedly connected to the top of the first support 201, a first screw rod 210 is threadedly sleeved in the inner side of the top cover 209, the first screw rod 210 is rotatably connected to the top of the sliding block 205, and a first hand wheel 211 is fixedly connected to the top of the first screw rod 210.

[0053] The top of the two second supports 501 is fixedly connected with an enclosing plate 507, the inside of the enclosing plate 507 is threadedly sleeved with a second screw rod 508, the second screw rod 508 is rotationally connected to the inside of the sliding seat 504, the top of the second screw rod 508 is fixedly connected with a second hand wheel 509, the first hand wheel 211 and the second hand wheel 509 are rotated to adjust the distance between the upper polishing wheel 207 and the lower polishing wheel 203 and the distance between the lower polishing roller 502 and the upper polishing roller 505, so that the cathode plate with different thicknesses can be polished;

[0054] The distance adjusting assembly 300 comprises two mounting plates 301, the two first supports 201 are fixedly connected to the top of the two mounting plates 301, the bottom of the two mounting plates 301 is fixedly connected with a threaded sleeve 302 and a plurality of limiting seats 305, the limiting seat 305 is movably clamped to the inside of the bottom frame 100, the inside of the bottom frame 100 is rotationally connected with two adjusting screw rods 303, the threaded sleeve 302 is threadedly sleeved with the outside of the corresponding adjusting screw rod 303, the outside of the two adjusting screw rods 303 is fixedly connected with an adjusting hand wheel 304, the adjusting hand wheel 304 is rotated to adjust the distance between the two side polishing assemblies 200, so that the cathode plate with different widths can be polished.

[0055] Further, the supporting assembly 400 comprises a fixing seat 401, the fixing seat 401 is fixedly connected to the top of the mounting plate 301, the inside of the fixing seat 401 is fixedly connected with an L-shaped plate 402, the inside of the L-shaped plate 402 is rotationally connected with a plurality of rollers 403, the plurality of rollers 403 can reduce the resistance of the movement of the cathode plate.

[0056] The operation process of the embodiment is as follows: when the two side edges and the liquid level of the cathode plate need to be polished, first, the distance between the upper polishing wheel 207 and the lower polishing wheel 203 and the distance between the lower polishing roller 502 and the upper polishing roller 505 can be adjusted by rotating the first hand wheel 211 and the second hand wheel 509, then the distance between the two mounting plates 301 can be adjusted according to the width of the cathode plate by rotating the two adjusting hand wheels 304 to drive the corresponding adjusting screws 303 to rotate, then 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, then the fixed motor 503 and the movable motor 506 are started to drive the lower polishing roller 502 and the upper polishing roller 505 respectively, then the cathode plate is placed on the corresponding two L plates 402, then the cathode plate is pushed forward, when the cathode plate passes through the lower polishing wheel 203 and the upper polishing wheel 207, the side edges of the cathode plate can be polished by the rapid rotation of the upper polishing wheel 207 and the lower polishing wheel 203, then the cathode plate is continuously pushed forward to enter the space between the lower polishing roller 502 and the upper polishing roller 505, so that the liquid level of the cathode plate can be polished, thereby the two side edges and the liquid level of the cathode plate can be quickly polished, and the high polymer corrosion-resistant material is more stable in adhesion with the cathode plate. Embodiment

[0057] Please refer to Figures 7-8 On the basis of specific embodiment one and specific embodiment two, the fixed horizontal tool includes a mounting bottom plate 600, two side edge clamps 700, a top clamp 800 and a moving assembly 900.

[0058] The mounting bottom plate 600 includes a bottom frame 601, and the top of the bottom frame 601 is fixedly connected with a fixed frame 603 and two vertical plates 602;

[0059] The side edge clamp 700 includes a lower clamp plate 701, the lower clamp plate 701 is located at the top of the two vertical plates 602, the top of the lower clamp plate 701 is fixedly connected with a side plate 702, the bottom of the lower clamp plate 701 is fixedly connected with two first fixed sleeves 704, the outside of the side plate 702 is movably sleeved with an upper clamp plate 703, the inside of the upper clamp plate 703 is movably sleeved with two first fixed bolts 705, and the two first fixed bolts 705 are respectively threadedly sleeved in the inside of the corresponding first fixed sleeve 704, by rotating the two first fixed bolts 705, the side edge of the cathode plate can be fixedly clamped by the upper clamp plate 703, so that the high polymer corrosion-resistant material can be more closely attached to the side edge of the cathode plate;

[0060] The top clamp 800 comprises 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 with two second fixed sleeves 803, the inside of the movable clamping plate 802 movably sleeves two second fixed bolts 804, and the two second fixed bolts 804 are respectively threadedly sleeved in the interiors of the corresponding second fixed sleeves 803, by rotating the two second fixed bolts 804, the movable clamping plate 802 can clamp the high polymer corrosion-resistant material of the liquid level of the cathode plate, so that the high polymer corrosion-resistant material can be more closely attached to the liquid level of the cathode plate.

[0061] Specifically, the moving assembly 900 comprises two rotating seats 901, the two rotating seats 901 are both fixedly connected to the top of the bottom frame 601, the two rotating seats 901 are both rotatably connected with a double-threaded screw rod 902, the two ends of the double-threaded screw rod 902 are both fixedly connected with a third hand wheel 904, the bottom of each of the two lower clamping plates 701 is fixedly connected with a clamping plate 903, and the two clamping plates 903 are both threadedly sleeved outside the double-threaded screw rod 902, by rotating the third hand wheel 904, the spacing of the two side edge clamps 700 can be adjusted, so that the cathode plates with different widths can be fixed.

[0062] Further, the clamping plate 903 is in the shape of an I-beam, and the clamping plate 903 is located between the two vertical plates 602.

[0063] The operation process of the embodiment is as follows: when it is needed to fix the cathode plate, first, the third hand wheel 904 is rotated to drive the double-threaded screw rod 902, then under the action of the threads, the two lower clamping plates 701 can be moved, so that the spacing of the movement of the two lower clamping plates 701 can be adjusted according to the size of the cathode plate, then the cathode plate is placed on the 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 plate 701, then the two first fixed bolts 705 are rotated to enable the upper clamping plate 703 to fix and clamp the side edges of the cathode plate, then the movable clamping plate 802 is installed above the fixed clamping plate 801, then the two second fixed bolts 804 are rotated to enable the movable clamping plate 802 to clamp the cathode plate, by the extrusion of the upper clamping plate 703 and the movable clamping plate 802, the cathode plate can be fixed, and at the same time, a certain pressure can be applied to the high polymer corrosion-resistant material, so that the high polymer corrosion-resistant material can be more closely attached to the cathode plate.

[0064] In the description of the specification, reference to "one embodiment", "an example", "a specific example" or the like means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "an example", "a specific example" or the like in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0065] The preferred embodiments of the application disclosed above are only to help explain the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments described. Obviously, many modifications and variations can be made in light of the contents of the specification. The specification selects and specifically describes these embodiments in order to better explain the principles and practical application of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A corrosion prevention method for a hydrometallurgical zinc electrowinning cathode plate, characterized by, The method comprises the following steps: S1, using a roughening device to automatically roughen two side edges and a liquid level of a cathode plate; S2, using a surface cleaner to clean the surface of the cathode plate; S3, using a diluent and a colloid to coat the cathode plate twice to increase the stability of adhesion; S4, applying a high-molecular anti-corrosion material on the colloid; S5, using a fixed cross to fix and shape the cathode plate; The roughening device comprises a chassis (100), a side polishing assembly (200), a spacing adjusting assembly (300) and a liquid level polishing assembly (500), the spacing adjusting assembly (300) and the liquid level polishing assembly (500) are arranged on the top of the chassis (100), the top of the spacing adjusting assembly (300) is provided with four supporting assemblies (400), and the side polishing assembly (200) is arranged on the top of the spacing adjusting assembly (300); The side polishing assembly (200) comprises a first support (201), the outer side of the first support (201) is fixedly connected with a lower driving motor (204), the inside of the first support (201) is rotatably connected with a lower rotating shaft (202), the lower rotating shaft (202) is fixedly connected with the output end of the lower driving motor (204), the other end of the lower rotating shaft (202) is fixedly connected with a lower polishing wheel (203), the inside of the first support (201) movably sleeves a sliding block (205), the inside of the sliding block (205) is rotatably connected with an upper rotating shaft (206), the outer side of the sliding block (205) is fixedly connected with an upper driving motor (208), the upper rotating shaft (206) is fixedly connected with the output end of the upper driving motor (208), and the other end of the upper rotating shaft (206) is fixedly connected with an upper polishing wheel (207); The liquid level polishing assembly (500) comprises two second supports (501), both of the two second supports (501) are fixedly connected with the top of the chassis (100), the inside of both of the two second supports (501) is slidably connected with a sliding seat (504), the inside of the sliding seat (504) is rotatably connected with an upper polishing roller (505), the side of the sliding seat (504) is fixedly connected with a movable motor (506), the upper polishing roller (505) is fixedly connected with the output end of the movable motor (506), and a lower polishing roller (502) is rotatably connected between the two second supports (501), the side of one of the second supports (501) is fixedly connected with a fixed motor (503), and the lower polishing roller (502) is fixedly connected with the output end of the fixed motor (503). The spacing adjusting assembly (300) comprises two mounting plates (301), two first supports (201) are fixedly connected to the top of the two mounting plates (301) respectively, the bottom of the two mounting plates (301) is fixedly connected with a threaded sleeve (302) and a plurality of limiting seats (305), the limiting seat (305) is movably clamped in the inside of the bottom frame (100), two adjusting screws (303) are rotatably connected to the inside of the bottom frame (100), the threaded sleeve (302) is threadedly sleeved on the outside of the corresponding adjusting screw (303), and the outside of the two adjusting screws (303) is fixedly connected with an adjusting hand wheel (304).

2. The corrosion prevention method of a zinc electrowinning cathode plate by hydrometallurgy according to claim 1, characterized by, The top of the first support (201) is fixedly connected with a top cover (209), the inside of the top cover (209) is threadedly sleeved with a first screw rod (210), the first screw rod (210) is rotatably connected to the top of the sliding block (205), and the top of the first screw rod (210) is fixedly connected with a first hand wheel (211).

3. The corrosion prevention method of a zinc electrowinning cathode plate by hydrometallurgy according to claim 1, characterized by, The top of the two second supports (501) is fixedly connected with a sealing plate (507), the inside of the sealing plate (507) is threadedly sleeved with a second screw rod (508), the second screw rod (508) is rotatably connected to the inside of the sliding seat (504), and the top of the second screw rod (508) is fixedly connected with a second hand wheel (509).

4. The corrosion prevention method of a zinc electrowinning cathode plate by hydrometallurgy according to claim 1, characterized by, The supporting assembly (400) comprises a fixing seat (401), the fixing seat (401) is fixedly connected to the top of the mounting plate (301), the inside of the fixing seat (401) is fixedly connected with an L-shaped plate (402), and the inside of the L-shaped plate (402) is rotatably connected with a plurality of rollers (403).

5. The corrosion prevention method of a zinc electrowinning cathode plate by hydrometallurgy according to claim 1, characterized by, The fixing cross comprises a mounting bottom plate (600), two side edge clamps (700), a top clamp (800) and a moving assembly (900). The mounting bottom plate (600) comprises a bottom frame (601), the top of the bottom frame (601) is fixedly connected with a fixing frame (603) and two standing plates (602); The side edge clamp (700) comprises a lower clamping plate (701), the lower clamping plate (701) is located at the top of the two standing plates (602), the top of the lower clamping plate (701) is fixedly connected with a side plate (702), the bottom of the lower clamping plate (701) is fixedly connected with two first fixing sleeves (704), the outside of the side plate (702) is movably sleeved with an upper clamping plate (703), the inside of the upper clamping plate (703) is movably sleeved with two first fixing bolts (705), and the two first fixing bolts (705) are threadedly sleeved in the inside of the corresponding first fixing sleeve (704) respectively; The top clamp (800) comprises 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 with two second fixed sleeves (803), the inside of the movable clamping plate (802) movably sleeves two second fixed bolts (804), and the two second fixed bolts (804) are respectively threadedly sleeved in the inside of the corresponding second fixed sleeve (803).

6. The corrosion prevention method of a zinc electrowinning cathode plate by hydrometallurgy according to claim 5, characterized by, The moving assembly (900) comprises two rotating seats (901), both of which are fixedly connected to the top of the bottom frame (601), both of which are fixedly connected to the top of the bottom frame (601), both of which are fixedly connected to the top of the bottom frame (601), both of which are fixedly connected to the top of the bottom frame (601), both of which are fixedly connected to the top of the bottom frame (601), and both of which are fixedly connected to the bottom of the two lower clamping plates (701). The bottom of the two clamping plates (903) is fixedly connected with a clamping plate (903), and the two clamping plates (903) are threadedly sleeved outside the double thread screw rod (902).

7. The corrosion prevention method of a zinc electrowinning cathode sheet according to claim 6, characterized by, The clamping plate (903) is in the shape of an I-beam, and the clamping plate (903) is located between the two vertical plates (602).

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