Negative plate and wet electrodeposition device

Abstract

The utility model discloses a cathode plate and a wet electrodeposition device, which belong to the technical field of metal smelting and deposition, the cathode plate comprises a support main body and an electrode structure, the support main body comprises a support framework and an insulation main body, the electrode structure is arranged on the support framework and is electrically connected with the support framework, and the insulation main body is arranged on the support framework. The insulating body wraps the supporting framework and at least wraps part of the electrode structure, and any end of the electrode structure and the outer surface of the insulating body are located on the same plane. The insulating main body wraps the supporting framework, and the supporting framework is used for supporting the electrode structure and improving the stability of the electrode structure; the supporting framework also serves as an electric conductor, and the electrode structure is electrically connected with a power supply through the supporting framework; when the cathode plate and the anode plate are both placed in the electrolyte, at least part of the electrode structure is coated by the insulating main body, so that the electrolyte can be prevented from permeating into the insulating main body, the electrolyte is prevented from corroding the supporting framework, and the service life of the cathode plate is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of metal smelting and deposition, and in particular to a cathode plate and a wet electrowinning device. Background Technology

[0002] Currently, cathode plates used in wet electrowinning are mainly composed of metal conductors and electrode posts. However, the cathode environment in the wet electrowinning process causes severe corrosion to the metal conductors, which greatly limits the service life of the cathode plate and requires frequent maintenance and replacement. As the service time increases, the additional energy consumption of the metal conductor also increases, which greatly reduces the conductivity of the cathode plate. Utility Model Content

[0003] The purpose of this invention is to improve the problems of low service life, low conductivity and high energy consumption of existing cathode plates, and to provide a cathode plate and a wet electrowinning device.

[0004] The technical solutions for achieving the above objectives include the following:

[0005] A cathode plate includes a supporting body and an electrode structure. The supporting body includes a supporting frame and an insulating body. The electrode structure is mounted on the supporting frame and electrically connected to the supporting frame. The insulating body covers the supporting frame and at least partially covers the electrode structure. Any end of the electrode structure is on the same plane as the outer surface of the insulating body.

[0006] In one embodiment, the electrode structure includes at least a first electrode assembly and a second electrode assembly, the first electrode assembly and the second electrode assembly being arranged vertically, both the first electrode assembly and the second electrode assembly having multiple electrode posts, the multiple electrode posts of the first electrode assembly and the multiple electrode posts of the second electrode assembly being staggered.

[0007] Each electrode post of the first electrode assembly and the second electrode assembly is mounted on the support frame, and each electrode post is electrically connected to the support frame; the end of the electrode post is on the same plane as the outer surface of the insulating body.

[0008] In one embodiment, the support frame includes at least a first conductive support component and a second conductive support component, wherein both the first conductive support component and the second conductive support component include a plurality of conductive supports;

[0009] In the first conductive support assembly, two adjacent conductive supports are connected through the conductive supports of the second conductive support assembly, and in the second conductive support assembly, two adjacent conductive supports are connected through the conductive supports of the first conductive support assembly.

[0010] The multiple conductive supports of the first conductive support assembly are staggered from the multiple conductive supports of the second conductive support assembly, and the electrode post is mounted on the conductive support.

[0011] In one embodiment, the support frame further has at least two first mounting bodies, which are mounted on both sides of the first conductive support assembly.

[0012] In one embodiment, the conductive support includes a second mounting body and six conductive wires connected end to end to form a regular hexagonal structure.

[0013] The second mounting body is mounted on the conductive wire.

[0014] In one embodiment, the electrode post includes a first electrode body and a second electrode body, wherein the first electrode body is mounted on a first side wall of the support frame and the second electrode body is mounted on a second side wall of the support frame;

[0015] The end of the first electrode or the second electrode is on the same plane as the outer surface of the insulating body.

[0016] In one embodiment, the support frame has mounting holes, and the electrode post also has a connector, the first end of which is mounted on the first electrode body, and the second end of which passes through the mounting holes and is mounted on the second electrode body.

[0017] In one embodiment, the first electrode body has a first adsorption end, and the second electrode body has a second adsorption end; the insulating body has a first side surface and a second side surface, the first adsorption end is aligned with the first side surface, and the second adsorption end is aligned with the second side surface.

[0018] In one embodiment, the insulating body is at least partially made of polydicyclopentadiene resin.

[0019] This utility model also proposes a wet electrowinning device, including a container, an anode plate, and a cathode plate as described above. A chamber is formed inside the container, and an electrolyte is contained in the chamber. The cathode plate and the anode plate are at least partially located in the electrolyte.

[0020] The technical solution provided by this utility model has the following advantages and effects:

[0021] A support frame is installed within an insulating body, which encapsulates the support frame. The support frame supports the electrode structure, improving its stability. Simultaneously, the support frame also acts as a conductor, through which the electrode structure is electrically connected to the power supply. When both the cathode and anode plates are placed in the electrolyte, and the anode and cathode plates are connected to the positive and negative power supplies respectively, the electrolyte's penetration into the insulating body, preventing corrosion of the support frame, and extending the cathode plate's lifespan, is prevented because the electrode structure is at least partially encapsulated. Attached Figure Description

[0022] The accompanying drawings illustrate specific examples of the technical solutions described in this utility model, and together with the detailed embodiments, form part of the specification, serving to explain the technical solutions, principles, and effects of this utility model.

[0023] Unless otherwise specified or defined, the same reference numerals in different figures represent the same or similar technical features, and different reference numerals may be used to represent the same or similar technical features.

[0024] Figure 1 This is the main idea of ​​the cathode plate in one embodiment of the present invention;

[0025] Figure 2 This is a comparison diagram of the electrode post distribution in one embodiment of this utility model;

[0026] Figure 3 This is a partial schematic diagram of the supporting frame in one embodiment of the present invention;

[0027] Figure 4 This is a cross-sectional view of the supporting body in one embodiment of the present invention;

[0028] Figure 5 This is one embodiment of the present invention. Figure 3 Enlarged view of point A;

[0029] Explanation of reference numerals in the attached figures:

[0030] 100. Cathode plate; 1. Support body; 11. Support frame; 111. First conductive support assembly; 112. Second conductive support assembly; 110. Conductive support body; 113. Second mounting body; 114. Conductive wire; 115. First mounting body; 116. Connecting wire; 12. Insulating body; 101. First side; 102. Second side; 2. Electrode structure; 21. First electrode assembly; 22. Second electrode assembly; 23. Electrode post; 231. First electrode body; 232. Second electrode body; 233. Connector; 234. First adsorption end; 235. Second adsorption end; 24. Spacing; 3. Conductive wire; 4. Fixing hole. Detailed Implementation

[0031] To facilitate understanding of this utility model, the specific embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0032] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0033] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0034] It should be noted that when a component is considered "fixed" to another component, it can be directly fixed to the other component or there can be an intervening component; when a component is considered "connected" to another component, it can be directly connected to the other component or there can be an intervening component; when a component is considered "mounted" on another component, it can be directly mounted on the other component or there can be an intervening component; when a component is considered "placed" on another component, it can be directly placed on the other component or there can be an intervening component.

[0035] Example 1

[0036] This utility model proposes a cathode plate 100, such as Figures 1 to 4 As shown, it includes a support body 1 and an electrode structure 2. The support body 1 includes a support frame 11 and an insulating body 12. The electrode structure 2 is mounted on the support frame 11 and electrically connected to the support frame 11. The insulating body 12 covers the support frame 11 and at least partially covers the electrode structure 2. Any end of the electrode structure 2 is on the same plane as the outer surface of the insulating body 12.

[0037] Specifically, the support frame 11 is installed inside the insulating body 12, and the insulating body 12 covers the support frame 11. The support frame 11 supports the electrode structure 2, improving the stability of the electrode structure 2. At the same time, the support frame 11 also serves as a conductor, and the electrode structure 2 is electrically connected to the power supply through the support frame 11. When both the cathode plate 100 and the anode plate are placed in the electrolyte, and the anode plate and cathode plate 100 are connected to the positive and negative power supplies respectively, since the electrode structure 2 is at least partially covered by the insulating body 12, electrolyte seepage into the insulating body 12 can be prevented, thus preventing electrolyte corrosion of the support frame 11 and improving the service life of the cathode plate 100.

[0038] Furthermore, during the electroplating of metal ions, positively charged metal ions in the electrolyte will automatically adsorb and deposit onto the electrode structure 2. Once the metal ions have deposited to a sufficient thickness, the cathode plate 100 is removed, and the electroplated copper or nickel is peeled off. The insulating body 12 is an insulating material with minimal adhesion to the metal ions, facilitating the pickup of the electroplated metal. In this application, the insulating body 12 is generally made of non-metallic material, resulting in a very small weight and reducing the overall weight of the cathode plate 100. This also significantly reduces the power consumption required to retrieve the cathode plate 100 from the electrolyte.

[0039] Moreover, compared to an all-metal cathode plate, the cathode plate 100 of this embodiment is several times lighter, and the insulating body 12 covers the electrode structure 2, making the two fit together. The insulating body 12 also applies a force to the electrode structure 2, further improving the stability of the electrode structure 2 on the supporting body 1. In a single electroplating cycle, the electrode structure 2 can electroplat a large amount of metal at once.

[0040] Furthermore, since the cathode plate 100 operates under low voltage and high current conditions after conduction, if the electrode structure 2 protrudes from the outer surface of the insulating body 12, the cathode plate 100 will have an irregular shape, and the integrity of the electrode structure 2 will deteriorate, thereby reducing current stability and hindering the electroposition of metal ions. Additionally, a specific mold is required to cast the insulating body 12. Conversely, if the end of the electrode structure 2 is recessed within the insulating body 12, the metal ions will be adsorbed onto the electrode structure 2 during electroposition. Since the electrode structure 2 is also made of metal, and metal materials have a certain adsorption force, the recessed structure will hinder the removal of metal ions from the electrode structure 2. Therefore, in this application, the end of the electrode structure 2 is on the same plane as the outer surface of the insulating body 12, improving the current stability of the electrode structure 2 and facilitating the removal of metal materials from the electrode structure 2.

[0041] Furthermore, since the support frame 11 is a conductive structure and the insulating body 12 is an insulating structure, compared with the fully conductive metal support body 1, the support body 1 in this embodiment reduces power consumption and improves conductivity.

[0042] In some embodiments, the insulating body 12 is made of polydicyclopentadiene resin. When fabricating the cathode plate 100, the electrode structure 2 is first mounted on the support frame 11, then placed in a mold. Liquid polydicyclopentadiene resin is poured into the mold, and after the resin cools, the insulating body 12 is formed, thus completely concealing the support frame 11 within the insulating body 12. During the injection molding process of the insulating body 12, the shrinkage stress during the curing of the polydicyclopentadiene resin tightly wraps the support frame 11 and the electrode structure 2. Therefore, the possibility of gaps between the insulating body 12 and the electrode structure 2 is very small, preventing electrolyte from seeping into the insulating body 12.

[0043] In some embodiments, the electrode structure 2 includes at least a first electrode assembly 21 and a second electrode assembly 22, which are arranged vertically. Both the first electrode assembly 21 and the second electrode assembly 22 have a plurality of electrode posts 23, which are staggered from each other. Each electrode post 23 of the first electrode assembly 21 and the second electrode assembly 22 is mounted on a support frame 11 and electrically connected to the support frame 11. The end of the electrode post 23 is on the same plane as the outer surface of the insulating body 12.

[0044] For details, please refer to Figure 2 As shown, Figure 2 This is a comparison diagram of the distribution of multiple electrode posts 23 under different distribution patterns. Figure 2 In part a of section 2, the spacing 24 between any two adjacent electrode posts 23 in the first electrode assembly 21 is equal, the spacing 24 between any two adjacent electrode posts 23 in the second electrode assembly 22 is equal, and the distances between the multiple electrode posts 23 in part a of section 2 are equal both vertically and horizontally. However, Figure 2 In part b, the plurality of electrode posts 23 of the first electrode assembly 21 are staggered with the plurality of electrode posts 23 of the second electrode assembly 22. The spacing 24 between any two adjacent electrode posts 23 in the first electrode assembly 21 is equal, and the spacing 24 between any two adjacent electrode posts 23 in the second electrode assembly 22 is equal. Figure 2 In the multiple electrode posts 23 of section b, the distance between any two adjacent electrode posts 23 in any direction is equal.

[0045] Furthermore, through Figure 2 (a) and Figure 2 (b) In contrast, for the same area... Figure 2 The middle b section can accommodate more electrode posts 23, making full use of the space on the outer surface of the supporting body 1. This allows for the placement of more electrode posts 23 within the same area and with equal spacing 24 between adjacent electrode posts 23. Each electrode post 23 is used for electrowinning of metal ions, further improving electrowinning efficiency.

[0046] In some embodiments, the support frame 11 includes at least a first conductive support component 111 and a second conductive support component 112. Both the first conductive support component 111 and the second conductive support component 112 include a plurality of conductive supports 110. Two adjacent conductive supports 110 in the first conductive support component 111 are connected through the conductive supports 110 of the second conductive support component 112, and two adjacent conductive supports 110 in the second conductive support component 112 are connected through the conductive supports 110 of the first conductive support component 111. The plurality of conductive supports 110 of the first conductive support component 111 and the plurality of conductive supports 110 of the second conductive support component 112 are staggered. The electrode post 23 is mounted on the conductive support 110.

[0047] For details, please refer to Figure 3 As shown, Figure 3 The diagram shows a partial view of the support frame 11. The number of first conductive support components 111 corresponds to the number of first electrode components 21, and the number of second conductive support components 112 corresponds to the number of second electrode components 22. Both the first conductive support component 111 and the second conductive support component 112 include multiple conductive supports 110. Each conductive support 110 is used to fix and install each electrode post 23.

[0048] Furthermore, in the first conductive support assembly 111, two adjacent conductive supports 110 are connected by conductive supports 110 of the second conductive support assembly 112, and in the second conductive support assembly 112, two adjacent conductive supports 110 are connected by conductive supports 110 of the first conductive support assembly 111. This allows two adjacent electrode posts 23 to be connected to each other in any direction, such as horizontal, vertical, or inclined directions. The support frame 11, which is arranged in such an orderly manner, has high overall strength. Each conductive support 110 is used to support each electrode post 23, improving the connection stability between multiple electrode posts 23 and the support frame 11, and satisfying the simultaneous electroplating of metal ions by multiple electrode posts 23.

[0049] Furthermore, when the multiple conductive supports 110 distributed in this way support the multiple electrode posts 23, they further satisfy the requirement that the multiple electrode posts 23 of the first electrode assembly 21 and the multiple electrode posts 23 of the second electrode assembly 22 are staggered.

[0050] To facilitate the installation of the electrode post 23 and improve the processing efficiency of the cathode plate 100, in some embodiments, the conductive support 110 has a mounting hole. The electrode post 23 includes a first electrode body 231, a second electrode body 232, and a connector 233. The first end of the connector 233 is mounted on the first electrode body 231, and the second end of the connector 233 passes through the mounting hole and is mounted on the second electrode body 232. The end of the first electrode body 231 or the second electrode body 232 is on the same plane as the outer surface of the insulating body 12.

[0051] For details, please refer to Figure 4 As shown, Figure 4 This is a cross-sectional view of the supporting body 1. The electrode post 23 is divided into a first electrode body 231 and a second electrode body 232. The connecting body 233 and the first electrode body 231 can be an integral structure. During installation, one end of the connecting body 233 passes through the mounting hole, the first electrode body 231 abuts against the conductive support body 110, the second electrode body 232 has a threaded hole, and the outer wall of the connecting body 233 has external threads. The second electrode body 232 and the connecting body 233 are threadedly engaged, and the second electrode body 232 also abuts against the conductive support body 110. In this way, the electrode post 23 can be fixed on the conductive support body 110. The threaded connection can improve the stability between the first electrode body 231 and the second electrode body 232, and the installation method is also relatively convenient.

[0052] In this embodiment, the first electrode 231 and the second electrode 232 are connected by a thread, mainly to improve the stability between them. In other embodiments, the first electrode 231 and the second electrode 232 can also be fixed by snap-fit ​​or welding, and no particular limitation is made here.

[0053] Preferably, the connector 233 can also be fixed on the conductive support 110, and the two ends of the connector 233 are respectively connected to the first electrode 321 and the second electrode 232.

[0054] Preferably, both the first electrode body 231 and the second electrode body 232 have sidewalls, and the sidewalls are at least partially attached to the inner wall of the insulating body 12; specifically, this avoids gaps between the electrode post 23 and the insulating body 12, prevents electrolyte from flowing into the insulating body 12, and prevents electrolyte from corroding the support frame 11. In this embodiment, the first electrode body 231 and the second electrode body 232 are made of titanium alloy. Titanium alloy refers to a variety of alloy metals made of titanium and other metals. Titanium alloy has high strength, good corrosion resistance, and high heat resistance, making it suitable for electrodepositing metal ions on the cathode plate 100.

[0055] Preferably, the first electrode 231 has a first adsorption end 234, and the second electrode 232 has a second adsorption end 235; the insulating body 12 has a first side 101 and a second side 102, the first adsorption end 234 is aligned with the first side 101, and the second adsorption end 235 is aligned with the second side 102. Specifically, the first adsorption end 234 of each electrode post 23 is used to electrolyze and adsorb metal ions on the first side 101 of the insulating body 12, and the second adsorption end 235 of each electrode post 23 is used to electrolyze and adsorb metal ions on the second side 102 of the insulating body 12, thereby realizing the electrolysis of metal ions on both sides of the supporting body 1, making full use of the outer surface space of the supporting body 1, and improving the electrolysis efficiency.

[0056] Preferably, the support frame 11 further has at least two first mounting bodies 115, which are mounted on both sides of the first conductive support assembly 111, and each first mounting body 115 has mounting holes. Specifically, by providing two first mounting bodies 115 on both sides of the first conductive support assembly 111, the space on both sides of the support frame 11 can be fully utilized, allowing for the placement of as many electrode posts 23 as possible within the same area. The more electrode posts 23 on the support body 1, the higher the efficiency of metal ion electroposition of the cathode plate 100.

[0057] Preferred, such as Figure 5 As shown, the conductive support 110 includes a second mounting body 113 and six conductive wires 114. The six conductive wires 114 are connected end-to-end to form a regular hexagonal structure. The second mounting body 113 is mounted on the conductive wires 114 and has mounting holes. Specifically, the six conductive wires 114 are spaced equally apart to form a regular hexagonal structure. In this embodiment, the conductive support 110 can also be made by bending a single conductive wire 114 into multiple regular hexagonal structures, with each regular hexagonal structure interconnected. Then, the second mounting body 113 is mounted on each regular hexagonal structure, and the electrode post 23 is fixed to the conductive support 110 through the second mounting body 113.

[0058] Preferably, the support frame 11 has a honeycomb structure and multiple mounting holes. The line 116 connecting three adjacent mounting holes forms an equilateral triangle. Each electrode post 23 is mounted on its respective mounting hole. Specifically, the equilateral triangle formed between three adjacent mounting holes in the support frame 11 ensures that the electrode posts 23 in the first row are staggered with those in the second row, making full use of the outer surface space of the support body 1. Similarly, the honeycomb structure can improve the overall structural strength of the support frame 11 and enhance the structural stability of the cathode plate 100.

[0059] Example 3

[0060] This invention also proposes a wet electrowinning apparatus (not shown in the figure), comprising a container, an anode plate 100, and a cathode plate 100 as described above. A chamber is formed within the container, containing an electrolyte. The cathode plate 100 and the anode plate are at least partially located in the electrolyte. Specifically, the structure of the cathode plate 100 in this embodiment is the same as in Embodiment 1 above, and will not be described in detail here. By applying the cathode plate 100 to the wet electrowinning apparatus, the cathode plate 100 cooperates with the anode plate. The cathode plate 100 has a fixing hole 4, which can be suspended from a crossbar on the container by bolts. The cathode plate 100 is electrically connected to a negative power supply via a conductive wire 3, and the anode plate is electrically connected to a positive power supply, thereby realizing the electrowinning of metal ions in the electrolyte and improving the service life and electrowinning efficiency of the wet electrowinning apparatus.

[0061] When referencing drawings, new features are explained. To avoid redundant references to drawings that would make the description less concise, features already described will not be referenced again on the drawings if the description is clear.

[0062] The purpose of the above embodiments is to reproduce and derive the technical solution of this utility model by way of example, and to fully describe the technical solution, purpose and effect of this utility model. The purpose is to enable the public to have a more thorough and comprehensive understanding of the disclosed content of this utility model, and it is not intended to limit the protection scope of this utility model.

[0063] The above embodiments are not an exhaustive list based on the present invention, and there may be other embodiments not listed. Any substitutions and improvements made without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. A cathode plate, characterized in that, The device includes a support body and an electrode structure. The support body includes a support frame and an insulating body. The electrode structure is mounted on the support frame and electrically connected to the support frame. The insulating body covers the support frame and at least partially covers the electrode structure. Any end of the electrode structure is on the same plane as the outer surface of the insulating body. The electrode structure includes at least a first electrode assembly and a second electrode assembly, which are arranged vertically. Both the first electrode assembly and the second electrode assembly have multiple electrode posts, and the multiple electrode posts of the first electrode assembly and the multiple electrode posts of the second electrode assembly are staggered. Each electrode post of the first electrode assembly and the second electrode assembly is mounted on the support frame, and each electrode post is electrically connected to the support frame; the end of the electrode post is on the same plane as the outer surface of the insulating body.

2. The cathode plate as described in claim 1, characterized in that, The support frame includes at least a first conductive support component and a second conductive support component, and both the first conductive support component and the second conductive support component include multiple conductive supports. In the first conductive support assembly, two adjacent conductive supports are connected through the conductive supports of the second conductive support assembly, and in the second conductive support assembly, two adjacent conductive supports are connected through the conductive supports of the first conductive support assembly. The multiple conductive supports of the first conductive support assembly are staggered from the multiple conductive supports of the second conductive support assembly, and the electrode post is mounted on the conductive support.

3. The cathode plate as described in claim 2, characterized in that, The support frame also has at least two first mounting bodies, which are mounted on both sides of the first conductive support assembly.

4. The cathode plate as described in claim 2, characterized in that, The conductive support includes a second mounting body and six conductive wires, which are connected end to end to form a regular hexagonal structure. The second mounting body is mounted on the conductive wire.

5. The cathode plate as described in claim 1, characterized in that, The electrode post includes a first electrode body and a second electrode body. The first electrode body is installed on the first side wall of the support frame, and the second electrode body is installed on the second side wall of the support frame. The end of the first electrode or the second electrode is on the same plane as the outer surface of the insulating body.

6. The cathode plate as described in claim 5, characterized in that, The support frame has mounting holes, and the electrode post also has a connector. The first end of the connector is mounted on the first electrode body, and the second end of the connector passes through the mounting holes and is mounted on the second electrode body.

7. The cathode plate as described in claim 5, characterized in that, The first electrode has a first adsorption end, and the second electrode has a second adsorption end; the insulating body has a first side and a second side, the first adsorption end is aligned with the first side, and the second adsorption end is aligned with the second side.

8. The cathode plate according to any one of claims 1 to 7, characterized in that, The insulating body is at least partially made of polydicyclopentadiene resin.

9. A wet electrowinning apparatus, characterized in that, The device includes a container, an anode plate, and a cathode plate as described in any one of claims 1 to 8, wherein a chamber is formed within the container, the chamber contains an electrolyte, and the cathode plate and the anode plate are at least partially located in the electrolyte.

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