Cathode plate capable of controlling product appearance

Abstract

The utility model discloses a negative plate capable of controlling the appearance of a product, the negative plate comprises a conductive rod and a plate body connected to the conductive rod, the side edge of the plate body is provided with a barrier plate, the barrier plate is at least arranged on the bottom edge, or the lower, left and right edges, or the lower, left, right and upper edges of the plate body, and the barrier plate is used for controlling the reduction rate of metal on the side edge of the plate body. The cathode plate has the beneficial effects that the barrier plate can control the reduction rate and the reduction process of metal at the edge of the cathode plate in the electrolysis or electrodeposition process of nickel, cobalt, copper, zinc and other materials, and the scabbing and hole formation at the edge of the cathode plate are inhibited, so that the purpose of controlling the physical appearance of the cathode plate is achieved.

Description

Technical Field

[0001] The present application relates to a metal electrodeposition process technology, and in particular to a cathode plate capable of controlling the appearance of a product. Background Art

[0002] Electrolysis or electrowinning (also known as electrodeposition) is a common hydrometallurgical electrorefining technology for producing nonferrous metals. During the electrolysis or electrowinning process, a reduction reaction occurs at the cathode under the action of direct current, and the metal ions are reduced to metal at the cathode (Me represents metals: nickel, cobalt, copper, zinc):

[0003] Under the action of direct current, the following reduction reaction occurs at the cathode:

[0004] Cathode reaction: Me 2+ +2e=Me

[0005] The metal plate is produced by continuously generating metal at the cathode through electrolysis or electrowinning. Nickel, cobalt, copper and zinc metal products are produced through electrolysis or electrowinning. The physical appearance of the product is a rectangular flat plate. The single surface area of the nickel, cobalt and copper metal plates is generally 0.5m 2 —2.0m 2 The single surface area of the zinc metal plate is generally 1.5m 2 —3.5m 2 . The thickness of the product metal plate is generally 5mm-15mm. In the current production practice, the thickness of the metal plates produced by the electrolysis or electrowinning process is greater than the thickness of the plate surface at the four edges. The edges of the metal plates are convex, and the edge shape is irregular, with scars or holes. As the electrolysis or electrowinning process proceeds, the longer the time, the more serious the convexity of the cathode plate edge, the more serious the irregularity of the convex shape, and the more scars and holes there are. Especially at the lower edge of the cathode plate (the edge of the cathode plate close to the conductive rod end is the upper edge, and the lower edge of the cathode plate vertically downward is the lower edge), this phenomenon is most serious. Especially in the copper electrowinning or electrolysis process, the scarring of the lower edge of the cathode plate often leads to a short circuit between the anode and cathode. In addition, in the nickel, cobalt, and zinc electrolysis or electrowinning process, the scarring of the lower edge of the cathode plate often leads to damage to the diaphragm bag. Scars or holes on the edge of the cathode plate will not only directly affect the product quality indicators and the continuous and stable operation of the production process, but also directly affect the product qualification rate and operating costs. Summary of the Invention

[0006] The purpose of this application is to propose a cathode plate that can control the appearance of the product, so as to solve the problems of bulges, scarring and voids on the edge of the cathode plate during the electrowinning process in the prior art.

[0007] A cathode plate capable of controlling the appearance of a product comprises a conductive rod and a plate body connected to the conductive rod. Blocking plates are arranged on the sides of the plate body. The blocking plates are arranged at least on the bottom edge, or the lower, left, and right sides, or the lower, left, right, and upper sides of the plate body.

[0008] In some embodiments, a gap exists between the barrier plate and the plate body.

[0009] In some embodiments, blocking plates are provided on the front and back sides of the plate body in positions corresponding to each other.

[0010] In some embodiments, the blocking plate includes a connecting portion and separating portions respectively connected to both ends of the connecting portion.

[0011] In some embodiments, the four corners of the plate are respectively a first edge, a second edge, a third edge, and a fourth edge from top to bottom in a counterclockwise direction.

[0012] In some embodiments, a blocking plate covering the second edge and the third edge is provided respectively.

[0013] In some embodiments, the blocking panel covering the second edge and the blocking panel covering the third edge are connected as one piece.

[0014] In some embodiments, a blocking plate covering the first edge and the fourth edge is provided respectively.

[0015] In some embodiments, the plate body is provided with one or more positioning holes for positioning the barrier plate. The positioning holes can be circular, polygonal, or irregular in shape. The positioning holes can enhance the bonding strength between the metal on the plate body and the plate body.

[0016] In some embodiments, the barrier plate may be made of insulating materials such as plastic, fiberglass, and resin.

[0017] Its beneficial effects are as follows: by setting up a barrier plate, during the electrolysis or electrowinning process of nickel, cobalt, copper, zinc and other materials, the barrier plate can control the reduction rate and reduction process of the metal at the edge of the cathode plate, inhibit the formation of scars and holes at the edge of the cathode plate, and thus achieve the purpose of controlling the physical appearance of the cathode plate. The presence of the barrier plate can make the edge shape of the cathode plate obtained by electrolysis or electrowinning regular, without scars or holes, and without the phenomenon of electrolyte entrainment in the cathode plate, thereby improving the qualified rate of the physical appearance of the cathode plate, and improving the qualified rate and grade rate of products such as nickel, cobalt, copper, and zinc. The production of the products is continuous and stable, with high current efficiency and good product quality, achieving energy saving and consumption reduction, cost reduction and efficiency improvement. During the electrolysis or electrowinning process of nickel, cobalt and zinc, there will be no damage to the diaphragm bag due to scarring of the cathode plate, which solves the problem of short circuit between the anode and cathode caused by scarring at the lower edge of the cathode plate during copper electrowinning or electrolysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a structural diagram of Example 1 of this application.

[0020] Figure 2 This is a partially simplified cross-sectional view of the second embodiment of the present application.

[0021] Figure 3 This is a partially simplified cross-sectional view of the third embodiment of the present application.

[0022] Figure 4 This is a partially simplified cross-sectional view of the fourth embodiment of the present application.

[0023] Figure 5 This is a simplified cross-sectional view of part of the application.

[0024] Description of the reference numerals in the accompanying drawings:

[0025] 1. Conductive rod; 2. Plate; 3. Blocking plate; 4. First edge; 5. Second edge; 6. Third edge; 7. Fourth edge. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of this application more clear, the application is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are part of the embodiments of this application, rather than all of the embodiments, and are only used to explain this application and are not intended to limit this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", "outer", "two ends", "both sides", "bottom", "top", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting this application. In addition, the terms "first", "second", "superior", "inferior", "primary", "secondary", etc. are used for descriptive purposes only and can be simply used to more clearly distinguish different components, but cannot be understood as indicating or implying relative importance.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, integral connections, mechanical connections, electrical connections, direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application in specific contexts.

[0029] A cathode plate capable of controlling the appearance of a product comprises a conductive rod 1 and a plate body 2 connected to the conductive rod 1, with a barrier plate 3 provided on the side of the plate body 2. The barrier plate 3 is provided at least on the bottom edge, or on the three lower, left, and right sides, or on the four lower, left, right, and upper sides of the plate body 2. The barrier plate 3 is used to control the reduction rate of the metal on the side of the plate body 2. Generally speaking, during the electrolysis or electrolysis process, the surface of the cathode plate will subsequently undergo a whole-plate operation. However, the edge of the cathode plate, especially the lower edge of the cathode plate, will easily produce bulges due to the metal precipitated at the edge of the cathode plate under the action of gravity or when the edge of the cathode plate is not blocked. The bulge is likely to exceed the edge range of the cathode plate during the continuous electrolysis or electrolysis process, and is prone to scarring and voids. Therefore, a barrier plate is provided. The barrier plate here acts like a mold and is used to whole the edge of the cathode plate.

[0030] Preferably, there is a gap between the blocking plate 3 and the plate body 2 .

[0031] Preferably, blocking plates 3 are respectively provided on the front and back sides of the plate body 2 in positions corresponding to each other. Here, the positions correspond to each other, which means that the blocking plates on the front and back sides of the plate body 2 are symmetrically arranged.

[0032] The blocking plate 3 includes a connecting portion 31 and partitions 32 respectively connected to both ends of the connecting portion.

[0033] Preferably, the four corners of the plate body 2 are respectively a first edge 4, a second edge 5, a third edge 6, and a fourth edge 7 from top to bottom in a counterclockwise direction.

[0034] Preferably, the second edge 5 and the third edge 6 are respectively provided with a blocking plate 3 covering them.

[0035] Preferably, the blocking plate 3 covering the second edge 5 and the blocking plate 3 covering the third edge 6 are connected as one body.

[0036] Preferably, the first edge 4 and the fourth edge 7 are respectively provided with a blocking plate 3 covering them.

[0037] By providing the barrier plate 3, during the electrolysis or electrowinning process of materials such as nickel, cobalt, copper, and zinc, the barrier plate 3 can control the reduction rate and reduction process of the metal at the edge of the cathode plate, inhibiting the formation of scars and holes at the edge of the cathode plate, thereby achieving the purpose of controlling the physical appearance of the cathode plate. The presence of the barrier plate 3 can make the edge shape of the cathode plate obtained by electrolysis or electrowinning regular, without scars or holes, and without the phenomenon of electrolyte entrainment in the cathode plate, thereby improving the qualified rate of the physical appearance of the cathode plate, and improving the qualified rate and grade rate of nickel, cobalt, copper, and zinc products. The production of the products is continuous and stable, with high current efficiency and good product quality, achieving energy conservation and consumption reduction, cost reduction, and efficiency improvement. During the electrolysis or electrowinning process of nickel, cobalt, and zinc, the diaphragm bag will not be damaged due to scarring of the cathode plate, which solves the problem of anode and cathode short circuit caused by scarring at the lower edge of the cathode plate during copper electrowinning or electrolysis.

[0038] Preferably, the plate body 2 is provided with one or more positioning holes, which are used to position the blocking plate 3 . The shape of the positioning holes is one or more of circular, polygonal or irregular shapes.

[0039] In addition, it should be particularly emphasized that the blocking plate 3 must be made of insulating material, which preferably includes but is not limited to various plastics or modified plastics, fiberglass, resin, etc.

[0040] like Figure 1 As shown, the first edge 4, the second edge 5, the third edge 6, and the fourth edge are respectively covered with a blocking plate 3, and the blocking plates 3 on the first edge 4 and the second edge 5 are connected as a whole, the blocking plates 3 on the second edge 5 and the third edge 6 are connected as a whole, and the blocking plates 3 on the third edge 6 and the fourth edge are connected as a whole.

[0041] like Figure 2 As shown, the second edge 5 and the third edge 6 are respectively covered with a blocking plate 3, and the two blocking plates 3 are symmetrically arranged.

[0042] like Figure 3 As shown, the first edge 4 and the fourth edge are respectively covered with a blocking plate 3, and the two blocking plates 3 are symmetrically arranged.

[0043] like Figure 4 As shown, the second edge 5 and the third edge 6 are respectively covered with a blocking plate 3, and the two blocking plates 3 are symmetrically arranged.

[0044] It should be emphasized that it is relatively necessary to set a blocking plate 3 covering the second edge 5 and the third edge 6. The blocking plate 3 on one edge is connected to the blocking plate 3 between the other adjacent edges to form a whole, or the blocking plates 3 are set independently of each other according to actual requirements.

[0045] like Figure 5 As shown, d1 = 5mm-80mm, and the preferred size is d1 = 10-40mm.

[0046] d2 = 10mm-100mm, preferably d2 = 15-50mm;

[0047] It can also be d1 = 5mm-80mm, and the preferred size is d1 = 15-45mm.

[0048] d2=10mm-100mm, the preferred distance is d2=15-50mm.

[0049] It should also be noted that the width of the cathode plate should be 60mm-200mm greater than the width of the anode plate.

[0050] The electrolyte level of the cathode plate is 30 mm to 100 mm higher than that of the anode plate.

[0051] It should also be noted that: Chinese patent document CN207159384U discloses a clamping strip and a cathode plate using the same. Here, it is necessary to distinguish between the technical solution disclosed in the above patent document and the technical solution of the present application, that is, the clamping strip disclosed in the above patent document is used to produce starting plates and is used on seed plates, while the barrier plate mentioned in the present application is used in the process of electrolysis or electrolysis of starting plates to produce metal; there is no gap between the clamping strip and the plate disclosed in the above patent document, that is, metal cannot be deposited between the clamping strip and the plate, but there is a gap between the barrier plate 3 and the plate body 2 in the present application, that is, metal can be deposited between the barrier plate 3 and the plate body 2.

[0052] The above descriptions are merely some embodiments of the present application and are intended to illustrate the technical solution of the present application, not to limit it. It should be understood that those skilled in the art may make improvements or substitutions based on the above description without departing from the inventive concept of the present application, and all such improvements and substitutions shall fall within the scope of protection of the appended claims of the present application. In such cases, all details may be replaced with equivalent elements, and the materials, shapes, and dimensions may be arbitrary.

Claims

1. A cathode plate capable of controlling the appearance of a product, characterized in that: The invention comprises a conductive rod (1) and a plate body (2) connected to the conductive rod (1); a blocking plate (3) is provided on the side of the plate body (2); and the blocking plate (3) is provided at least on the bottom edge, or on the bottom, left, right, and four sides of the plate body (2).

2. The cathode plate capable of controlling product appearance according to claim 1, characterized in that: There is a gap between the blocking plate (3) and the plate body (2).

3. The cathode plate capable of controlling product appearance according to claim 2, characterized in that: Blocking plates (3) are respectively provided on the front and back sides of the plate body (2) at positions corresponding to each other.

4. The cathode plate capable of controlling product appearance according to claim 3, characterized in that: The blocking plate (3) comprises a connecting portion (31) and separating portions (32) respectively connected to both ends of the connecting portion (31).

5. The cathode plate capable of controlling product appearance according to claim 4, characterized in that: The four corners of the plate body (2) are respectively a first edge (4), a second edge (5), a third edge (6), and a fourth edge (7) from top to bottom in a counterclockwise direction.

6. The cathode plate capable of controlling product appearance according to claim 5, characterized in that: The second edge (5) and the third edge (6) are respectively provided with a blocking plate (3) covering them.

7. The cathode plate capable of controlling product appearance according to claim 6, characterized in that: The blocking plate (3) covering the second edge (5) and the blocking plate (3) covering the third edge (6) are connected as a whole.

8. A cathode plate capable of controlling product appearance according to any one of claims 6 to 7, characterized in that: The first edge (4) and the fourth edge (7) are respectively provided with a blocking plate (3) covering them.

9. The cathode plate capable of controlling product appearance according to claim 8, characterized in that: The plate body (2) is provided with one or more positioning holes, the positioning holes are used to position the blocking plate (3), and the shape of the positioning holes is circular, polygonal or one or more.

10. The cathode plate capable of controlling product appearance according to claim 1, characterized in that: The baffle plate (3) can be made of plastic, glass fiber reinforced plastic, or resin.

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