Aluminum cathode plate for hydrometallurgy electrodeposition

Abstract

The utility model relates to an aluminum cathode plate for hydrometallurgy electrodeposition, and belongs to the technical field of hydrometallurgy. The aluminum cathode plate comprises an aluminum plate, the aluminum plate comprises an aluminum main plate and aluminum vertical edge strips vertically and fixedly arranged on the two side edges of the aluminum main plate, the thickness of the aluminum vertical edge strips is larger than that of the aluminum main plate, insulating strips are vertically arranged in the middles of the aluminum vertical edge strips, an aluminum transition plate is fixedly arranged at the top end of the aluminum plate, and the top of the aluminum transition plate is a conventional section. The bottom of the aluminum transition plate is a thickened section, the thickness of the thickened section of the aluminum transition plate is larger than that of the aluminum main plate, a conductive beam is fixedly arranged at the top end of the aluminum transition plate, a lifting lug is fixedly arranged in the middle of the top end of the conductive beam, and a conductive head is fixedly arranged at one end of the conductive beam. The thickness of the aluminum vertical edge strips is increased, and the seriously corroded part at the top of the cathode plate is thickened, so that the corrosion resistance of the cathode plate can be improved, and the service life of the cathode plate is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of aluminium cathode plate for hydrometallurgy electrodeposit, belong to hydrometallurgy technical field. BACKGROUND

[0002] In the hydrometallurgy electrodeposit process, cathode plate is exposed in the environment containing sulfuric acid, chlorine and fluorine and other corrosive substances for a long time, resulting in serious corrosion problem. Especially the upper part and both sides of cathode plate end are subjected to the most serious corrosion, which greatly shortens the service life of cathode plate, thereby increasing the production cost.

[0003] In order to prolong the service life of cathode plate, the commonly used solution at present is to carry out corrosion protection treatment near the liquid level of cathode plate, and inlay non-metal insulating strip on the plate surface (see Figure 1 and 2 ). However, this method has multiple defects: first, the processing technology is complex, and the requirement for corrosion-resistant material is high; second, the adhesion strength between corrosion-resistant coating and aluminum plate is insufficient, and easy to fall off; third, there are often gaps between insulating strip and cathode plate, and these gaps will gradually expand with the extension of use time, resulting in acid mist penetration and aggravating corrosion, eventually making cathode plate unable to continue to use.

[0004] In view of the serious corrosion problem of cathode plate surface, corresponding measures need to be taken in the design and processing stage. SUMMARY

[0005] In view of the serious corrosion problem of cathode plate surface, the utility model provides an aluminium cathode plate for hydrometallurgy electrodeposit, which has the advantages of improving corrosion resistance, prolonging service life and simplifying processing technology.

[0006] The technical scheme adopted by the utility model to solve its technical problem is:

[0007] An aluminium cathode plate for hydrometallurgy electrodeposit, comprising an aluminum plate, the aluminum plate includes an aluminum main plate 1 and an aluminum vertical edge strip 3 vertically fixedly arranged on both side edges of the aluminum main plate 1, the thickness of the aluminum vertical edge strip 3 is greater than the thickness of the aluminum main plate 1, the middle part of the aluminum vertical edge strip 3 is vertically provided with an insulating strip 2, the top end of the aluminum plate is fixedly provided with an aluminum transition plate 5, the top part of the aluminum transition plate 5 is a conventional section, the bottom part of the aluminum transition plate 5 is a thickened section, the thickness of the thickened section of the aluminum transition plate 5 is greater than the thickness of the aluminum main plate 1, the top end of the aluminum transition plate 5 is fixedly provided with a conductive beam 4, the top end middle part of the conductive beam 4 is fixedly provided with an ear 6, and one end of the conductive beam 4 is fixedly provided with a conductive head 7.

[0008] Preferably, the bottom end of the aluminum transition plate 5 is provided with a transition slope at the joint with the top end of the aluminum plate, the two sides of the aluminum vertical edge strip 3 are respectively A side end and B side end, the A side end of the aluminum vertical edge strip 3 is fixedly connected with the side edge of the aluminum main plate 1 and is provided with a transition slope at the joint of the end face, and the B side end is provided with a groove with a reverse trapezoidal structure, and the opening end of the groove is the short side upper bottom of the reverse trapezoidal structure.

[0009] Preferably, the bottom end of the aluminum transition plate 5 is integrally formed with the top end of the aluminum plate, and the A side end of the aluminum vertical edge strip 3 is integrally formed with the side edge of the aluminum main plate 1.

[0010] Preferably, the bottom end of the aluminum transition plate 5 is integrally formed with the top end of the aluminum plate, and the A side end of the aluminum vertical edge strip 3 is integrally formed with the side edge of the aluminum main plate 1.

[0011] Preferably, the bottom end of the aluminum transition plate 5 is integrally formed with the top end of the aluminum plate, and the A side end of the aluminum vertical edge strip 3 is integrally formed with the side edge of the aluminum main plate 1.

[0012] Preferably, the bottom end of the aluminum transition plate 5 is integrally formed with the top end of the aluminum plate, and the A side end of the aluminum vertical edge strip 3 is integrally formed with the side edge of the aluminum main plate 1.

[0013] Preferably, the conductive head 7 is a clamping conductive head or a lap joint conductive head.

[0014] More preferably, the clamping conductive head comprises a conductive sheet connecting plate 8 and a conductive sheet 9, the conductive sheet connecting plate 8 is fixedly arranged at the end head of the conductive beam 4, and the conductive sheet 9 is clamped and fixed on the side face of the conductive sheet connecting plate 8 through a connecting bolt.

[0015] More preferably, the end head of the conductive beam 4 is provided with an electricity connection groove, the lap joint conductive head is provided with a convex body matched with the electricity connection groove, and the convex body of the lap joint conductive head is clamped in the electricity connection groove.

[0016] Preferably, the bottom end of the conductive beam 4 is provided with a horizontal welding groove, and the conventional section of the top of the aluminum transition plate 5 is clamped and welded in the horizontal welding groove.

[0017] The utility model discloses a beneficial effect:

[0018] The utility model discloses a device through the local thickening treatment in the part of being easily corroded, and adopts the integrally formed structure or the welding fixed structure, effectively solved the problem of serious corrosion of the cathode plate in the prior art, has the advantages of improving the corrosion resistance, prolonging the service life, simplifying the processing technology. DRAWINGS

[0019] Figure 1Structure diagram of aluminum cathode plate for traditional structure wet metallurgy electrodeposition;

[0020] Figure 2 For Figure 1 A-A, B-B, C-C section view, (a) is A-A, (b) is B-B, (c) is C-C;

[0021] Figure 3 Structure diagram of aluminum cathode plate for traditional structure wet metallurgy electrodeposition;

[0022] Figure 4 For Figure 3 A-A section view;

[0023] Figure 5 For Figure 3 B-B section view;

[0024] Figure 6 Structure diagram of aluminum cathode plate for traditional structure wet metallurgy electrodeposition;

[0025] Figure 7 Structure diagram of aluminum cathode plate for traditional structure wet metallurgy electrodeposition;

[0026] Figure 8 For Figure 7 A-A section view;

[0027] In the figure, 1-aluminum main plate, 2-insulating strip, 3-aluminum vertical edge strip, 4-conductive beam, 5-aluminum transition plate, 6-lifting lug, 7-conductive head, 8-conductive piece connecting plate, 9-conductive piece. DETAILED DESCRIPTION

[0028] The utility model will be further described in connection with specific embodiments.

[0029] Example 1: as shown in Figure 3 and 4 A kind of aluminum cathode plate for wet metallurgy electrodeposition, including aluminum plate, the aluminum plate includes aluminum main plate 1 and the aluminum vertical edge strip 3 of two side edges fixedly arranged in aluminum main plate 1 vertically, the thickness of aluminum vertical edge strip 3 is greater than the thickness of aluminum main plate 1, the middle part of aluminum vertical edge strip 3 is vertically provided with insulating strip 2, the top of aluminum plate is fixedly provided with aluminum transition plate 5, the top of aluminum transition plate 5 is conventional section, the bottom of aluminum transition plate 5 is thickening section, the thickness of thickening section of aluminum transition plate 5 is greater than the thickness of aluminum main plate 1, the top of aluminum transition plate 5 is fixedly provided with conductive beam 4, the top middle part of conductive beam 4 is fixedly provided with lifting lug 6, one end of conductive beam 4 is fixedly provided with conductive head 7;

[0030] The aluminum main plate serves as the main body of the cathode plate and provides basic structural strength and electrical conductivity. The aluminum vertical edge strips improve the corrosion resistance of the cathode plate by increasing the thickness, especially for the corrosion problems on both sides of the plate surface. The vertical arrangement of the insulating strips facilitates the stripping of the electrodeposited metal. The thickened bottom section of the aluminum transition plate is designed to thicken the severely corroded parts at the top, effectively prolonging the service life of the cathode plate. The arrangement of the conductive beam and the conductive head ensures stable transmission of the current. The design of the lifting lugs facilitates the installation and removal of the cathode plate. Through the above technical means, the problem of severe corrosion of the cathode plate due to long-term exposure to sulfuric acid and chlorine, fluorine environment is solved, the service life of the cathode plate is prolonged, and the production cost is reduced.

[0031] In the prior art, the corrosion prevention treatment of the cathode plate is complex and ineffective, which can easily cause problems such as peeling of the corrosion-resistant coating and gaps between the insulating strips and the cathode plate. The aluminum cathode plate of the present embodiment is thickened at the severely corroded parts, and the traditional structure of the aluminum cathode plate (brushing corrosion-resistant coating and injection molding insulating edge strips) is not used, which has obvious advantages in corrosion resistance, service life, and production cost.

[0032] Example 2: The wet metallurgical electrodeposition aluminum cathode plate of the present example is basically the same as that of Example 1, except that:

[0033] As shown in Figure 4 , the bottom end of the aluminum transition plate 5 is provided with a transition slope at the connection with the top end of the aluminum plate; as shown in Figure 5 , the two sides of the aluminum vertical edge strip 3 are A side end and B side end respectively, the A side end of the aluminum vertical edge strip 3 is fixedly connected with the side edge of the aluminum main plate 1 and the end face connection is provided with a transition slope, the B side end is provided with a groove with a reverse trapezoidal structure, the opening end of the groove is the short side upper bottom of the reverse trapezoidal structure, and the insulating strip 2 is clamped in the groove;

[0034] The transition slope of the bottom end of the aluminum transition plate and the top end of the aluminum plate can be realized by mechanical processing or casting to ensure smooth transition and accurate size of the slope; the reverse trapezoidal groove of the B side end can be realized by milling or stamping process to ensure the size and shape of the groove are accurate, and the insulating strip is firmly clamped;

[0035] The transition slope design at the connection between the bottom end of the aluminum transition plate and the top end of the aluminum plate helps to reduce stress concentration, prevent corrosion from intensifying, and enhance structural stability. The transition slope design at the A side end of the aluminum vertical edge strip and the side edge of the aluminum main plate further reduces stress concentration and enhances structural stability. The reverse trapezoidal groove design at the B side end allows the insulating strip to be firmly clamped in the groove, preventing the insulating strip from falling off. Through the optimized structure design, the stress concentration phenomenon is effectively reduced, the corrosion is prevented from intensifying, the insulating strip is firmly fixed, the problem of insulating strip falling off is avoided, and the reliability and durability of the cathode plate are improved as a whole.

[0036] Example 3: The wet metallurgical electrodeposition aluminum cathode plate of the present embodiment is basically the same as that of Example 2, except that:

[0037] The bottom end of the aluminum transition plate 5 is integrally formed with the top end of the aluminum plate, and the A-side end of the aluminum vertical edge strip 3 is integrally formed with the side edge of the aluminum main plate 1; reducing the gap and structural defects at the connection, thereby reducing the possibility of corrosion, improving structural stability, and prolonging the service life of the cathode plate;

[0038] By integrally forming the bottom end of the aluminum transition plate with the top end of the aluminum plate, and integrally forming the A-side end of the aluminum vertical edge strip with the side edge of the aluminum main plate, the corrosion problems and structural stress concentration that may be caused by traditional welding are avoided, and problems such as stability decline are avoided; integrally forming not only simplifies the manufacturing process, reduces the dependence on corrosion-resistant materials, but also effectively improves the service life of the cathode plate and reduces production costs.

[0039] Example 4: The wet metallurgical electrodeposition aluminum cathode plate of the present embodiment is basically the same as that of Example 2, except that:

[0040] The bottom end of the aluminum transition plate 5 is integrally formed with the top end of the aluminum plate, and the A-side end of the aluminum vertical edge strip 3 is integrally formed with the side edge of the aluminum main plate 1; reducing the gap and structural defects at the connection, thereby reducing the possibility of corrosion, improving structural stability, and prolonging the service life of the cathode plate;

[0041] By integrally forming the bottom end of the aluminum transition plate with the top end of the aluminum plate, and integrally forming the A-side end of the aluminum vertical edge strip with the side edge of the aluminum main plate, the corrosion problems and structural stress concentration that may be caused by traditional welding are avoided, and problems such as stability decline are avoided; integrally forming not only simplifies the manufacturing process, reduces the dependence on corrosion-resistant materials, but also effectively improves the service life of the cathode plate and reduces production costs.

[0042] Further, the horizontal groove of the aluminum transition plate can be realized by mechanical processing or casting process to ensure the size accuracy and surface quality of the groove, so that the top end of the aluminum plate can be firmly welded and fixed in the groove. The vertical groove of the aluminum vertical edge strip can also be processed using a similar process, and the inner surface is smooth to avoid defects such as pores during the welding process. The aluminum plate and the aluminum transition plate, and the aluminum vertical edge strip and the aluminum main plate can be welded by friction stir welding to ensure the welding quality and connection strength.

[0043] Example 5: The wet metallurgical electrodeposition aluminum cathode plate of the present embodiment is basically the same as that of Example 2, except that:

[0044] The bottom end surface of the thickened section of the aluminum transition plate 5 is located 10-50 mm below the liquid level line, the upper end surface of the thickened section of the aluminum transition plate 5 is located 30-100 mm above the liquid level line, and the thickness of the thickened section of the aluminum transition plate 5 is 1-8 mm greater than the thickness of the aluminum main plate 1.

[0045] The thickness of the aluminum vertical edge strip 3 is 1-8 mm greater than the thickness of the aluminum main plate 1.

[0046] The thickened section of the aluminum transition plate can provide better corrosion resistance near the liquid level line, prolong the service life of the aluminum cathode plate, and reduce production costs.

[0047] The bottom end surface of the thickened section of the aluminum transition plate is located below the liquid level line, which can be achieved by adjusting the length and thickness of the aluminum transition plate. The upper end surface of the thickened section is located above the liquid level line, which can be achieved by accurately measuring the position of the liquid level line and designing the size of the aluminum transition plate accordingly. The thickness of the thickened section of the aluminum transition plate is greater than the thickness of the aluminum main plate, which can be achieved by increasing the thickness of the aluminum transition plate during manufacturing. Specifically, the thickness of the thickened section can be increased through processes such as rolling and extrusion of the aluminum plate.

[0048] By adding a thickened section to the aluminum transition plate in the design of the aluminum cathode plate, and locating the bottom end surface below the liquid level line and the upper end surface above the liquid level line, the corrosion resistance of the aluminum cathode plate during electrodeposition is significantly improved. Without the need for complex corrosion prevention treatment and inlaid non-metallic insulation strips, the processing technology is simplified, the requirements for corrosion-resistant materials are reduced, and the problems of easy peeling of corrosion-resistant coatings and large gaps in insulation strips are avoided. Not only does this prolong the service life of the aluminum cathode plate, but it also effectively reduces production costs and improves production efficiency.

[0049] Using thickened aluminum vertical edge strips instead of insulation clamping edge strips can solve the problem of gaps between the existing insulation clamping edge strips and the cathode plate, which allows acid mist to enter and exacerbate corrosion. Increasing the thickness of the aluminum vertical edge strips can better resist corrosion in acidic environments and simplify the preparation process of the aluminum cathode plate.

[0050] Example 6: The wet metallurgical electrodeposition aluminum cathode plate of this embodiment is basically the same as that of Example 5, except that:

[0051] The conductive head 7 is a clamping conductive head or a lap joint conductive head. By designing different types of conductive heads, the problem of connecting the cathode plate conductive head with the conductive beam is solved. The clamping conductive head and the lap joint conductive head provide different connection methods, ensuring stable connection between the conductive head and the conductive beam, thereby improving the conductivity and connection reliability.

[0052] Example 7: The wet metallurgical electrodeposition aluminum cathode plate of this embodiment is basically the same as that of Example 6, except that:

[0053] AsFigure 6 As shown, the clamping conductive head includes a conductive sheet connecting plate 8 and a conductive sheet 9, the conductive sheet connecting plate 8 is fixedly arranged at the end of the conductive beam 4, and the conductive sheet 9 is clamped and fixed on the side surface of the conductive sheet connecting plate 8 through a connecting bolt; by adopting the design of the clamping conductive head or the lap joint conductive head, the problem of unstable connection of the cathode plate conductive head and the conductive beam is solved; the design of the clamping conductive head provides a more stable and reliable connection mode, improves the conductive performance, and reduces the failure and maintenance cost caused by poor connection;

[0054] The fixed arrangement of the conductive sheet connecting plate ensures the stable connection of the conductive sheet and the conductive beam, and the use of the connecting bolt provides a reliable clamping and fixing mode, thereby enhancing the stability and conductivity of the overall structure; the clamping conductive head structure is simple and convenient to install, which can significantly improve the stability and reliability of the conductive connection, prolong the service life, and reduce the maintenance cost.

[0055] Embodiment 8: The wet metallurgical electrodeposition aluminum cathode plate of the present embodiment is basically the same as the wet metallurgical electrodeposition aluminum cathode plate of embodiment 6, except that:

[0056] As shown in Figure 7 and 8 , the end of the conductive beam 4 is provided with an electric connection groove, the lap joint conductive head is provided with a convex body matched with the electric connection groove, and the convex body of the lap joint conductive head is clamped in the electric connection groove; the convex body of the lap joint conductive head can be firmly clamped in the electric connection groove and can be reinforced by welding, so as to ensure that the connection between the conductive head and the end of the conductive beam is more stable; in this way, not only the reliability of the connection is improved, but also the installation and maintenance process is simplified, and the failure caused by unstable connection is avoided; the electric connection groove can be opened at the bottom of the end of the conductive beam by mechanical processing, and the convex body can be formed on the lap joint conductive head by casting or mechanical processing; the size of the electric connection groove and the convex body needs to be strictly controlled to ensure accurate clamping during installation;

[0057] The connection mode of the lap joint conductive head not only improves the reliability of the connection, but also makes the installation and maintenance process more convenient, solves the problem of unstable connection between the conductive head and the end of the conductive beam, avoids the failure caused by unstable connection, and improves the stability and service life of the overall system.

[0058] Embodiment 9: The wet metallurgical electrodeposition aluminum cathode plate of the present embodiment is basically the same as the wet metallurgical electrodeposition aluminum cathode plate of embodiment 6, except that:

[0059] As shown in Figure 2As shown, the bottom end of the conductive beam 4 is provided with a horizontal welding groove, and the conventional section of the top of the aluminum transition plate 5 is clamped and welded in the horizontal welding groove; the connection between the aluminum transition plate and the conductive beam can be ensured to be more firm, thereby reducing the problem of falling off due to corrosion; the clamped and welded connection between the conventional section of the top of the aluminum transition plate and the horizontal welding groove can effectively increase the service life of the aluminum cathode plate, and solve the problem of short service life caused by serious corrosion.

[0060] The specific embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by those skilled in the art without departing from the purpose of the utility model.

Claims

1. A wet metallurgical aluminum cathode plate for electrodeposition, characterized by: The application relates to an aluminum plate, which comprises an aluminum main plate (1) and aluminum vertical edge strips (3) vertically and fixedly arranged on both sides of the aluminum main plate (1), the thickness of the aluminum vertical edge strips (3) is greater than that of the aluminum main plate (1), the middle part of the aluminum vertical edge strips (3) is vertically provided with an insulating strip (2), the top end of the aluminum plate is fixedly provided with an aluminum transition plate (5), the top part of the aluminum transition plate (5) is a normal section, the bottom part of the aluminum transition plate (5) is a thickened section, the thickness of the thickened section of the aluminum transition plate (5) is greater than that of the aluminum main plate (1), the top end of the aluminum transition plate (5) is fixedly provided with a conductive beam (4), the middle part of the top end of the conductive beam (4) is fixedly provided with an ear (6), and one end of the conductive beam (4) is fixedly provided with a conductive head (7).

2. The aluminum cathode plate for hydrometallurgical electrodeposition according to claim 1, characterized by: The bottom end of the aluminum transition plate (5) is provided with a transition inclined surface at the joint with the top end of the aluminum plate, the two sides of the aluminum vertical edge strip (3) are respectively an A-side end and a B-side end, the A-side end of the aluminum vertical edge strip (3) is fixedly connected with the side edge of the aluminum main plate (1) and is provided with a transition inclined surface at the joint of the end surface, and the B-side end is provided with a groove with a cross-section in the shape of an inverted trapezoid, the opening end of the groove is the short side upper bottom of the inverted trapezoid structure, and the insulating strip (2) is clamped in the groove.

3. The aluminum cathode plate for hydrometallurgical electrodeposition according to claim 2, characterized by: The bottom end of the aluminum transition plate (5) is integrally formed with the top end of the aluminum plate, and the A-side end of the aluminum vertical edge strip (3) is integrally formed with the side edge of the aluminum main plate (1).

4. The aluminum cathode plate for hydrometallurgical electrodeposition according to claim 2, characterized by: The middle part of the bottom end of the aluminum transition plate (5) is provided with a horizontal groove, and the top end of the aluminum plate is welded and fixed in the horizontal groove; the A-side end of the aluminum vertical edge strip (3) is provided with a vertical groove, and the side edge of the aluminum main plate (1) is welded and fixed in the vertical groove.

5. The aluminum cathode plate for hydrometallurgical electrodeposition according to claim 1, characterized by: The bottom end surface of the thickened section of the aluminum transition plate (5) is located 10-50 mm below the liquid level, the upper end surface of the thickened section of the aluminum transition plate (5) is located 30-100 mm above the liquid level, and the thickness of the thickened section of the aluminum transition plate (5) is 1-8 mm greater than that of the aluminum main plate (1).

6. The aluminum cathode plate for hydrometallurgical electrodeposition according to claim 1, characterized by: The thickness of the aluminum vertical edge strip (3) is 1-8 mm greater than that of the aluminum main plate (1).

7. The aluminum cathode plate for hydrometallurgical electrodeposition according to claim 1, characterized by: The conductive head (7) is a clamping conductive head or a lap joint conductive head.

8. The aluminum cathode sheet for hydrometallurgical electrodeposition according to claim 7, characterized by: The clamping conductive head comprises a conductive sheet connecting plate (8) and a conductive sheet (9), the conductive sheet connecting plate (8) is fixedly arranged at the end of the conductive beam (4), and the conductive sheet (9) is clamped and fixed on the side surface of the conductive sheet connecting plate (8) through connecting bolts.

9. The aluminum cathode plate for hydrometallurgical electrodeposition according to claim 7, characterized by: The end of the conductive beam (4) is provided with an electric connection groove, the lap joint conductive head is provided with a convex body matched with the electric connection groove, and the convex body of the lap joint conductive head is clamped in the electric connection groove.

10. The aluminum cathode plate for hydrometallurgical electrodeposition according to claim 1, characterized by: The middle part of the bottom end of the conductive beam (4) is provided with a horizontal welding groove, and the normal section of the top part of the aluminum transition plate (5) is clamped and welded in the horizontal welding groove.

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