Indium electrolysis device

The dual-stage filtration system addresses indium oxide impurities in copper indium zinc tin solar cells by enhancing purity and stability, thereby improving efficiency and extending the device's lifespan.

CN223103110UActive Publication Date: 2025-07-15安徽铜冠产业技术研究院有限责任公司 +1
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Patent Information

Application Number
CN202422384860.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-29
Publication Date
2025-07-15
Estimated Expiration
2034-09-29

AI Technical Summary

Technical Problem

The suspension of anode sludge in the existing indium electrolytic devices leads to unstable production, affecting the number of cycles and purity of the electrolyte, and the inconvenient disassembly of the filter device leads to a decrease in the filtration effect.

Method used

An indium electrolytic device is designed, adopting a top shell, filter mesh and bottom shell structure, combining thread grooves and thread rings to realize multi-stage filtration and convenient replacement of filter mesh, and multiple filtration and rapid replacement of electrolyte through transmission hose.

Benefits of technology

It improves the purity of the electrolyte, extends the equipment life, reduces consumables and labor costs, reduces production losses and environmental pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an indium electrolysis device, which relates to the technical field of indium electrolysis manufacturing, and comprises an electrolytic bath body, two top shells are arranged on the side surface of the electrolytic bath body, a filter screen is arranged in each top shell, and the top shells and the filter screens are used for filtering anode mud in electrolyte. The anode mud particle removing device has the main advantage that anode mud particles with different sizes in electrolyte can be gradually removed through the top shell, the filter screen and the bottom shell. According to the graded filtering mode, impurities can be more effectively removed, and the purity of the electrolyte is improved. And through multiple times of filtration, small particles in the anode mud can be prevented from entering electrolysis equipment, so that the phenomenon that the surfaces of pipelines, valves or electrodes are blocked is avoided, and the service life of the equipment is prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of indium electrolysis manufacturing, in particular to an indium electrolysis device. Background Technique

[0002] As one of the rare metals, indium is widely used in the semiconductor industry and can also be used as a high-grade alloy material, and has extensive uses in the medical, chemical, glass and electrical industries. Higher purity indium is usually prepared by an electrolysis process. The electrolysis method is that under the action of an electric field, indium ions in the solution obtain electrons at the cathode and are reduced to metallic indium. In this process, the crude indium or indium-containing compounds on the anode will lose electrons and release indium ions into the solution, thus forming an electrolysis balance.

[0003] In the existing indium electrolysis device, since anode mud is generated during the electrolysis process, the electrolysis device has anode mud suspension, which affects production and the number of electrolyte circulation times. At the same time, anode mud is likely to accumulate in the high and low position tanks and needs to be cleaned regularly, increasing the labor intensity. The anode mud suspension will form protruding granular crystals on the cathode copper, affecting the physical specifications of the cathode copper, such as surface smoothness and flatness.

[0004] In order to solve the problem of anode mud suspension in the above-mentioned electrolyte, a double filtration device is provided during the output process of the electrolyte, so as to filter out the anode mud contained in the electrolyte. The impurities and suspended matters in the anode mud will increase the resistance of the electrolyte and reduce its conductivity. After filtering out the anode mud, the conductivity of the electrolyte will be improved, which is beneficial to the smooth progress of the electrolysis process.

[0005] However, during the manufacturing process of indium electrolysis, due to the overall fixed connection of the filtration device, it is very inconvenient to disassemble and wash the filter screen or filter bag. The filter screen will gradually accumulate anode mud during use, resulting in a decline in the filtration effect. If the filter screen is not easy to disassemble and replace, the anode mud cannot be removed in time, which will further affect the purity and quality of the electrolyte. Content of the Utility Model

[0006] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose an indium electrolysis device, which solves the problem that the production and the number of electrolyte circulation times are affected by the suspension of anode mud in indium electrolysis production.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] An indium electrolysis device includes an electrolytic cell body. Two top shells are arranged on the side surface of the electrolytic cell body, and filter nets are arranged inside the top shells. The top shells and the filter nets are used to filter the anode mud in the electrolyte. Thus, it can be ensured that the anode mud will not accumulate in the electrolyte.

[0009] As a further improvement of the present utility model, two top shells are provided, annular sliding grooves are formed on the outer surfaces of the top shells, the two top shells are cut into several parts with different heights, and bottom shells are respectively arranged at the bottoms of the top shells. Thus, the electrolyte can pass through the top shells.

[0010] As a further improvement of the present utility model, an annular shell one and an annular shell two with the same size are respectively arranged at the bottom of the top shell far away from the electrolytic cell body, threaded rings are fixedly connected to the tops of the annular shell one, the annular shell two and the bottom shell, and threaded grooves one are formed on the inner walls of the bottoms of the top shell, the annular shell one and the annular shell two. Thus, a plurality of filter nets can be fixed and replaced.

[0011] As a further improvement of the present utility model, threaded grooves two are formed at the bottoms of the bottom shells, four filter nets are provided, the four filter nets are respectively movably connected at the joints of the top shell, the annular shell one, the annular shell two and the bottom shell, transmission hoses are respectively threadedly connected to the bottoms of the bottom shells and the threaded grooves two, the other ends of the transmission hoses on the side close to the electrolytic cell body are slidably connected inside the annular sliding grooves formed on the surface of another top shell, and a transmission hose is also slidably connected inside the annular sliding groove on the side close to the electrolytic cell body. Thus, the plurality of filter nets arranged at the bottom end of the top shell can be disassembled and washed.

[0012] As a further improvement of the present utility model, a low-position groove is fixedly connected to the end of the transmission hose far away from the bottom shell on the side far away from the electrolytic cell body, a transmission pipe is fixedly connected to the bottom end of the low-position groove, three transmission pipes are provided for the transmission pipe, one transmission pipe is arranged inside the top end of the low-position groove, and the end of the transmission pipe inside the top end of the low-position groove far away from the low-position groove is fixedly connected to the bottom end of the electrolytic cell body. Thus, the electrolyte can be transmitted.

[0013] As a further improvement of the present utility model, a high-position groove is arranged at the bottom of the end of the transmission pipe at the bottom of the low-position groove far away from the low-position groove, the last transmission pipe is fixedly connected to one side of the high-position groove far away from the transmission pipe at its top end, the other end of the transmission pipe fixedly connected to the high-position groove is arranged inside the top end of the electrolytic cell body, a high-position partition is fixedly connected inside the high-position groove, and an electrolytic cell partition is fixedly connected inside the electrolytic cell body. Thus, it can be prevented that the electrolyte flows out of the electrolytic cell body in a downward manner.

[0014] As a further improvement of the present utility model, a plurality of clamping grooves are symmetrically formed inside the electrolytic cell body, a cathode plate and an anode plate are slidably connected inside the clamping grooves, the cathode plate and the anode plate are alternately and sequentially slidably connected inside the clamping grooves, valves are fixedly connected to the outer surfaces of the transmission hose and the bottom transmission pipe, and magnetic pumps are fixedly connected to the outsides of the transmission hose and the bottom transmission pipe on the side close to the electrolytic cell body. Thus, high-purity indium can be produced.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. Through the top shell, the filter screen, and the bottom shell, water is electrolyzed by the cathode plate and the anode plate to carry out an oxidation-reduction reaction. After the electrolyte is generated, it is then transported into the top shell through the transfer hose pipeline. Thus, through filter screens with various different filtration precisions, the anode mud in the electrolyte is filtered multiple times. In this way, anode mud particles of different sizes in the electrolyte can be gradually removed. This method of hierarchical filtration can more effectively remove impurities and improve the purity of the electrolyte. Through multiple filtrations, it is possible to prevent tiny particles in the anode mud from entering the electrolysis equipment, thereby avoiding phenomena such as clogging of pipelines, valves, or the electrode surface, and thus extending the service life of the equipment. Through multiple filtrations, it is also possible to reduce the waste liquid discharge caused by electrolyte pollution and reduce environmental pollution.

[0017] 2. Through the first thread groove and the thread ring, due to the threaded connection between the first thread groove and the thread ring, the top shell, the first annular shell, the second annular shell, and the bottom shell can be quickly disassembled. Thus, the filter screen located between them can be selectively and conveniently replaced. The selective and quick replacement design enables the operator to quickly and conveniently replace the filter screen that needs to be replaced without having to disassemble the entire filtration system or affect other components that are working normally. Moreover, the selective replacement can avoid waste of undamaged filter screens caused by overall replacement, thereby reducing the consumable cost. The simplified replacement process also reduces the dependence on professional maintenance personnel and lowers the labor cost. At the same time, reducing the downtime also means reducing the production losses caused by downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a plan view of the present utility model.

[0019] Figure 2 is a structural schematic diagram of the present utility model.

[0020] Figure 3 is a structural schematic diagram of the electrolytic cell body and the clamping groove in the present utility model.

[0021] Figure 4 is a structural schematic diagram of another angle of the present utility model.

[0022] Figure 5 is a sectional structural schematic diagram of the top shell and the bottom shell in the present utility model.

[0023] Figure 6 is a separated structural schematic diagram of the top shell, the filter screen, the first annular shell, the second annular shell, and the bottom shell in the present utility model.

[0024] In the figure: 101, electrolytic cell body; 102, transfer pipe; 103, elevated tank; 104, elevated partition; 105, electrolytic cell partition; 106, cathode plate; 107, anode plate; 108, low-lying tank; 109, valve; 110, magnetic pump; 111, clamping groove; 201, top shell; 202, annular sliding groove; 203, filter screen; 204, first annular shell; 205, second annular shell; 206, bottom shell; 207, first thread groove; 208, thread ring; 209, second thread groove; 210, transfer hose. Detailed implementation manner

[0025] In order to make the above-mentioned objects, features, and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific implementations disclosed below.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only and do not represent the only implementation manner.

[0027] As shown in the figure, an indium electrolysis device includes an electrolytic cell body 101, a cathode plate 106, an anode plate 107, and a filter screen 203.

[0028] Is there rain? The high-level tank 103 is provided with a high-level partition 104 for aeration of the liquid inlet pipe, which can prevent air from being brought into the electrolytic cell body 101 when the electrolyte enters, thus avoiding the appearance of pores on the electroindium. The electrolytic cell body 101 is also provided with an electrolytic cell partition 105, so that the electrolyte flows out of the electrolytic cell body 101 in a downward-outward manner, effectively preventing the anode mud in the electrolytic cell body 101 from flowing into the low-level tank 108. The bottom plate of the electrolytic cell body 101 is inclined, and the lower slot opening of the liquid outlet side is the lowest, with a liquid outlet opened. The liquid outlet is connected to the magnetic pump 110, and the outlet end of the magnetic pump 110 is connected to the top shell 201 for online filtration of the electrolyte. The filtered electrolyte enters the low-level tank. The liquid outlet of the high-level tank 103 and the liquid outlet of the electrolytic cell body 101 are both arranged below the liquid level to prevent electrolyte splashing. Since the inclination angle of the bottom plate of the electrolytic cell body 101 is 6-13°, it ensures that the anode mud shed from the anode plate 107 can gather with the liquid near the liquid outlet at the bottom of the electrolytic cell body 101, which is convenient for the magnetic pump 110 to pump it into the step-by-step filtration device. After the filtration is completed, the electrolyte will enter the low-level tank 108, and then through the transmission pipe 102, valve 109 and magnetic pump 110 at the bottom end of the low-level tank 108, thus completing the circulation of the electrolyte in the entire indium manufacturing process.

[0029] Furthermore, the cathode plate 106 and the anode plate 107 are alternately inserted into the clamping groove 111 opened inside the electrolytic cell body 101 in sequence. At the same time, the magnetic pump 110 is started. At this time, the cathode plate 106 and the anode plate 107 will electrolyze the electrolyte. When the electrolyzed electrolyte is transmitted to the inside of the top shell 201 through the transmission hose 210, at this time, the electrolyte passes through the filter screen 203 with a filtration accuracy of 5μm fixed between the first top shell 201 and the bottom shell 206, thereby initially filtering the electrolyte. Then the electrolyte will be transmitted to the second top shell 201 through the transmission hose 210 at the bottom end of the bottom shell 206. Since three filter screens 203 are fixedly connected between the top shell 201, the first annular shell 204, the second annular shell 205 and the bottom shell 206, and the filtration accuracies of the three filter screens 203 are 1μm, 0.45μm and 0.1μm respectively, the effect of filtering the anode liquid in the electrolyte multiple times will be achieved, and the anode mud particles of different sizes in the electrolyte can be gradually removed. This hierarchical filtration method can more effectively remove impurities and improve the purity of the electrolyte.

[0030] Further, when the operator detects that anode slime reappears in the electrolyte or the flow rate of the electrolyte is incorrect, it proves that the filter screen 203 may be damaged or blocked. At this time, it is necessary to detect the filter screen 203 and replace the damaged filter screen 203. First, disconnect the transfer hose 210 by screwing it off from the second threaded groove 209 at the bottom end of the bottom case 206. Then, remove the filter screen 203 with different filtration precisions for detection by screwing it off through the threaded connection between the first threaded groove 207 and the threaded ring 208. Finally, replace the damaged filter screen 203. This enables selective and portable replacement of the filter screen 203. The selective and quick replacement design allows the operator to quickly and conveniently replace the filter screen 203 that needs to be replaced, and avoids waste of the undamaged filter screen 203 caused by overall replacement.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. An indium electrolysis device, comprising an electrolytic cell body (101), characterized in that, Two top shells (201) are provided on the side of the electrolytic cell body (101). A filter screen (203) is provided inside each of the top shells (201). The top shells (201) and the filter screen (203) are used to filter anode mud in the electrolytic solution.

2. An indium electrolysis device according to claim 1, characterized in that, There are two top shells (201). An annular sliding groove (202) is formed on the outer surface of each of the top shells (201). The two top shells (201) are cut into several parts with different heights. A bottom shell (206) is divided and arranged at the bottom of each of the top shells (201).

3. An indium electrolysis device according to claim 2, characterized in that, An annular shell one (204) and an annular shell two (205) of the same size are divided and arranged at the bottom of the top shell (201) far from the electrolytic cell body (101). Threaded rings (208) are fixedly connected to the tops of the annular shell one (204), the annular shell two (205) and the bottom shell (206). Threaded grooves one (207) are formed on the inner walls at the bottoms of the top shell (201), the annular shell one (204) and the annular shell two (205).

4. An indium electrolysis device according to claim 3, characterized in that, Threaded grooves two (209) are formed at the bottoms of the bottom shells (206). There are four filter screens (203). The four filter screens (203) are respectively movably connected to the joints between the top shell (201), the annular shell one (204), the annular shell two (205) and the bottom shell (206). A transfer hose (210) is threadedly connected to the threaded groove two (209) at the bottom of each of the bottom shells (206). The other end of the transfer hose (210) on the side close to the electrolytic cell body (101) is slidably connected to the inside of the annular sliding groove (202) formed on the surface of another top shell (201). A transfer hose (210) is also slidably connected to the inside of the annular sliding groove (202) on the side close to the electrolytic cell body (101).

5. An indium electrolysis device according to claim 4, characterized in that, A low-level tank (108) is fixedly connected to the end of the transfer hose (210) far from the bottom shell (206) on the side far from the electrolytic cell body (101). A transfer pipe (102) is fixedly connected to the bottom of the low-level tank (108). There are three transfer pipes (102). One transfer pipe (102) is arranged inside the top of the low-level tank (108). The end of the transfer pipe (102) inside the top of the low-level tank (108) far from the low-level tank (108) is fixedly connected to the bottom of the electrolytic cell body (101).

6. An indium electrolysis device according to claim 5, characterized in that, The bottom of the end of the transfer pipe (102) at the bottom of the low-level tank (108) far from the low-level tank (108) is provided with a high-level tank (103). The last transfer pipe (102) is fixedly connected to the side of the high-level tank (103) far from the transfer pipe (102) at its top. The other end of the transfer pipe (102) fixedly connected to the high-level tank (103) is arranged inside the top of the electrolytic cell body (101). A high-level partition (104) is fixedly connected inside the high-level tank (103). An electrolytic cell partition (105) is fixedly connected inside the electrolytic cell body (101).

7. An indium electrolysis device according to claim 6, characterized in that, A plurality of clamping grooves (111) are symmetrically formed inside the electrolytic cell body (101). A cathode plate (106) and an anode plate (107) are slidably connected inside the clamping grooves (111). The cathode plate (106) and the anode plate (107) are alternately and sequentially slidably connected inside the clamping grooves (111). Valves (109) are fixedly connected to the outer surfaces of the transfer hose (210) and the bottom transfer pipe (102). Magnetic pumps (110) are fixedly connected to the outsides of the transfer hose (210) and the bottom transfer pipe (102) on one side close to the electrolytic cell body (101).