A zinc electrowinning workshop electrolytic cell leakage circulation device

Abstract

This utility model provides a leakage circulation device for an electrolytic cell in a zinc electrowinning workshop, relating to the field of zinc electrowinning electrolytic cell technology. It includes an outer tank, with an inner tank located inside the outer tank. An installation assembly is arranged around the inner tank, comprising support corner posts welded to the four corners of the inner wall of the outer tank, and support corner blocks welded to the four upper corners of the inner tank. A leakage circulation assembly is located on the lower inner side of the outer tank, including a liquid collection tank at the bottom of the inner side of the outer tank, a collection tank at the center of the liquid collection tank, and a circulation tank on the inner side of the collection tank. By dividing the electrolytic cell into an inner and outer tank, the inner tank is installed inside the outer tank via support corner blocks and connecting pins during use. Lifting rings facilitate the hoisting of the inner tank. When the inner tank is damaged and leaks, it can be disassembled and replaced, reducing maintenance time and improving the continuity of zinc electrowinning electrolysis operations.

Description

Technical Field

[0001] This utility model relates to the field of zinc electrolytic cell technology, and in particular to a leakage circulation device for an electrolytic cell in a zinc electrolytic cell workshop. Background Technology

[0002] Zinc electrowinning is a metallurgical process that uses an aqueous zinc sulfate solution as an electrolyte to electrolyze and extract zinc. It is also known as zinc electrolysis. The electrolytic cell is the core equipment in the zinc hydrometallurgical process to realize the electrodeposition of zinc ions into metallic zinc. Under the condition of energization, the Zn²⁺ in the electrolytic zinc sulfate solution in the cell gains electrons on the cathode (aluminum plate) and is deposited as metallic zinc (cathode zinc sheet). At the anode (lead-silver alloy plate), an oxidation reaction of water occurs to generate oxygen.

[0003] However, traditional electrolytic cells are usually single-structure tanks. When the tank is damaged and leaks, it is not possible to maintain it quickly, which affects the continuity of zinc electrowinning and electrolysis operations. Furthermore, since the electrolyte solution is usually corrosive, when existing electrolytic cells are damaged and leak, or when the electrolyte solution overflows due to operational reasons, the electrolyte solution will flow directly into the external environment, which not only wastes the electrolyte solution but also poses safety hazards.

[0004] Therefore, we provide a solution to the above problems by providing a leakage circulation device for the electrolytic cell in a zinc electrowinning workshop. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a leakage circulation device for the electrolytic cell in a zinc electrowinning workshop, aiming to solve the problems mentioned above.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A leakage circulation device for an electrolytic cell in a zinc electrowinning workshop includes an outer tank, an inner tank on the inner side of the outer tank, and mounting components around the inner tank. The mounting components include support corner posts welded to the four corners of the inner wall of the outer tank, and support corner blocks welded to the four upper corners of the inner tank. A leakage circulation component is provided on the lower inner side of the outer tank. The leakage circulation component includes a liquid collection tank located at the bottom of the inner side of the outer tank, a liquid collection tank having a center, and a circulation tank having an inner side of the liquid collection tank.

[0007] As a further description of the above technical solution: The top of the supporting corner post is provided with a groove, and a docking groove is provided in the center of the groove. The bottom of the supporting corner block is welded with a docking pin. The shape of the supporting corner block is the same as the shape of the groove on the supporting corner post. The top left and right sides of the inner groove are welded with lifting rings.

[0008] As a further description of the above technical solution: There is a gap between the outer groove and the inner groove, and the edge of the outer groove is higher than the surface of the inner groove.

[0009] As a further description of the above technical solution: The surface of the polymer tank has an inwardly concave structure, and the inner surface of the outer tank is covered with a polypropylene anti-corrosion plate.

[0010] As a further description of the above technical solution: The circulation tank is equipped with a pump pipe inside, and a circulation water pump is installed on the left side of the outer tank. The circulation water pump and the pump pipe are connected by a pipe. A filter screen is installed at the port of the pump pipe, and a circulation water pipe is installed on the upper side of the circulation water pump.

[0011] As a further description of the above technical solution: A fixing buckle is fixedly connected to the top left side of the outer groove. The fixing buckle is made of polypropylene and there are two sets of fixing buckles, which are on the same horizontal line.

[0012] As a further description of the above technical solution: The inner wall of the liquid collection tank is equipped with a liquid level sensor. There are two sets of liquid level sensors, which are on the same vertical line. The liquid level sensor is connected to the circulating water pump by electricity. A filter screen is installed on the upper side of the liquid collection tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. By configuring the installation components, the electrolytic cell is divided into an inner tank and an outer tank. During use, the inner tank is installed inside the outer tank via support blocks and connecting pins. The inner tank is easily hoisted using lifting rings. If the inner tank is damaged and leaks, it can be disassembled and replaced, reducing maintenance time and improving the continuity of zinc electrowinning operations. When electrolyte overflows from the inner tank, the electrolyte will not overflow because the edge of the outer tank is higher than the surface of the inner tank. Instead, it will flow into the collection tank at the bottom of the inner side of the outer tank. When the inner tank is damaged and leaks, the leaked electrolyte will also flow into the collection tank, facilitating the collection of overflowing electrolyte and preventing it from leaking into the external environment, thus improving the safety of electrolysis.

[0014] 2. By incorporating a leakage circulation component, the overflowing and leaking electrolyte solution collected in the collection tank is then re-injected into the inner tank via a circulating water pump and circulating water pipes. This ensures a consistent total electrolyte solution volume within the inner tank. Simultaneously, a liquid level sensor continuously monitors the electrolyte solution content in the collection tank. When the electrolyte solution level rises to the position of the upper liquid level sensor, a signal is transmitted to the circulating water pump, controlling it to extract and circulate the electrolyte solution. When the electrolyte solution level drops to the lower liquid level sensor, the circulating water pump stops to prevent damage from prolonged idling. This automatic recycling of the electrolyte solution avoids waste and ensures the continuity of the electrolysis process. Furthermore, a filter screen effectively removes debris and impurities from the electrolyte solution, guaranteeing its quality and the effectiveness of the electrolysis operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model; Figure 2 This is a schematic diagram showing the disassembled structure of the outer and inner grooves of this utility model; Figure 3 This is a schematic diagram of the leakage circulation component of this utility model; Figure 4 This is a schematic diagram of the cooperative structure of the circulating water pipe and the fixing buckle of this utility model.

[0016] The following are the labeling elements in the diagram: 1. Outer tank; 2. Inner tank; 3. Mounting components; 301. Support corner post; 302. Connecting groove; 303. Support corner block; 304. Connecting pin; 305. Lifting ring; 4. Leakage circulation assembly; 401. Liquid collection tank; 402. Liquid collection tank; 403. Circulation tank; 404. Pump pipe; 405. Circulating water pump; 406. Circulating water pipe; 407. Fixing buckle; 408. Liquid level sensor; 409. Filter screen. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-4As shown, this utility model provides a technical solution: a leakage circulation device for an electrolytic cell in a zinc electrowinning workshop, including an outer tank 1, an inner tank 2 arranged inside the outer tank 1, and an installation component 3 arranged around the inner tank 2. The installation component 3 includes support corner posts 301 welded to the four corners of the inner wall of the outer tank 1, and support corner blocks 303 welded to the four corners of the upper side of the inner tank 2. A leakage circulation component 4 is arranged on the lower side of the inner side of the outer tank 1. The leakage circulation component 4 includes a liquid collection tank 401 arranged at the bottom of the inner side of the outer tank 1, a liquid collection tank 402 is opened in the center of the liquid collection tank 401, and a circulation tank 403 is opened on the inner side of the liquid collection tank 402.

[0019] Furthermore, the top of the support corner post 301 is provided with a groove, and a docking groove 302 is provided in the center of the groove. The bottom of the support corner block 303 is welded with a docking pin 304. The shape of the support corner block 303 is the same as the shape of the groove on the support corner post 301. Lifting rings 305 are welded to the left and right sides of the top of the inner tank 2. By dividing the electrolytic cell into an inner tank 2 and an outer tank 1, the inner tank 2 is installed inside the outer tank 1 through the support corner block 303 and the docking pin 304 during use. The lifting rings 305 facilitate the lifting of the inner tank 2. When the inner tank 2 is damaged and leaks, it can be disassembled and replaced, reducing the maintenance time of the electrolytic cell and improving the continuity of zinc electrowinning electrolysis operation.

[0020] Furthermore, there is a gap between the outer tank 1 and the inner tank 2, and the edge of the outer tank 1 is higher than the surface of the inner tank 2. During the electrolysis process, when the electrolyte overflows from the inner tank 2, the electrolyte will not overflow because the edge of the outer tank 1 is higher than the surface of the inner tank 2. Instead, it will flow into the liquid collection tank 401 at the bottom of the inner side of the outer tank 1. When the inner tank 2 is damaged and leaks, the leaked electrolyte will also flow into the liquid collection tank 401, which facilitates the collection of the overflowing electrolyte, prevents the electrolyte from leaking into the external environment, and improves the safety of electrolysis.

[0021] Furthermore, the surface of the liquid collection tank 401 has an inwardly concave structure, and the inner surface of the outer tank 1 is covered with a polypropylene anti-corrosion plate. Through the concave structure of the surface of the liquid collection tank 401, the electrolyte solution overflowing from the inner tank 2 can be better collected, improving the solution collection efficiency. Moreover, through the polypropylene anti-corrosion plate, the outer tank 1 has good corrosion resistance, which can effectively prevent the electrolyte solution from corroding the outer tank 1, extending the service life of the equipment and reducing the equipment maintenance cost.

[0022] Furthermore, a pump pipe 404 is installed inside the circulation tank 403, and a circulating water pump 405 is installed on the left side of the outer tank 1. The circulating water pump 405 and the pump pipe 404 are connected by a pipe. A filter screen is installed at the port of the pump pipe 404. A circulating water pipe 406 is installed on the upper side of the circulating water pump 405. The electrolyte solution collected in the collection tank 401 will be collected in the collection tank 402. Then, the collected electrolyte solution will be injected back into the inner tank 2 through the circulating water pump 405 and the circulating water pipe 406, so as to ensure the total amount of electrolyte solution in the inner tank 2 and realize the recycling of electrolyte solution. This not only avoids the waste of electrolyte solution, but also ensures the continuity of the electrolysis process.

[0023] Furthermore, a fixing buckle 407 is fixedly connected to the top left side of the outer tank 1. The fixing buckle 407 is made of polypropylene. There are two sets of fixing buckles 407, which are on the same horizontal line. The fixing buckle 407 is used to fix the circulating water pipe 406 to prevent the circulating water pipe 406 from shaking or shifting during the operation of the equipment, ensuring the stability of the connection of the circulating water pipe 406, and ensuring that the electrolytic solution can smoothly return to the inner tank 2 through the circulating water pipe 406 to maintain the normal operation of the electrolysis process.

[0024] Furthermore, a liquid level sensor 408 is installed on the inner wall of the collection tank 402. Two sets of liquid level sensors 408 are set and are on the same vertical line. The liquid level sensors 408 are electrically connected to the circulating water pump 405. A filter screen 409 is installed on the upper side of the collection tank 402. The liquid level sensor 408 detects the content of the electrolyte solution in the collection tank 402 in real time. When the liquid level of the electrolyte solution rises to the position of the upper liquid level sensor 408, the signal is transmitted to the circulating water pump 405 to control the circulating water pump 405 to pump and circulate the electrolyte solution. When the electrolyte solution drops to the lower liquid level sensor 408, the circulating water pump 405 is controlled to stop to avoid damage caused by prolonged idling of the circulating water pump 405. The filter screen 409 can filter out some debris and impurities in the electrolyte solution to ensure the quality of the electrolyte solution and the effectiveness of the electrolysis operation.

[0025] Working Principle: During use, the inner tank 2 is accurately installed on the inner support column 301 of the outer tank 1 via the support corner block 303 and the docking pin 304, completing the initial assembly of the equipment. Then, the zinc electrolytic electrolysis operation is started. During the electrolysis process, if the electrolyte solution in the inner tank 2 overflows, the solution will flow into the collection tank 401 at the bottom of the inner side of the outer tank 1 because the edge of the outer tank 1 is higher than the surface of the inner tank 2. If the inner tank 2 is damaged and leaks, the leaked electrolyte solution will also flow into the collection tank 401. When the liquid level of the electrolyte solution in the collection tank 402 rises to the position of the upper liquid level sensor 408 due to continuous accumulation, the liquid level sensor 408 transmits a signal to the circulating water pump 405. The circulating water pump 405 starts and extracts the electrolyte solution accumulated in the collection tank 402 through the pump pipe 404, and then re-injects it into the inner tank 1 through the circulating water pipe 406. Inside tank 2, during this process, the filter screen 409 on the upper side of the collection tank 402 can filter out debris and impurities mixed in the electrolyte solution, ensuring the quality of the electrolyte solution injected into the inner tank 2. When the electrolyte solution drops to the lower liquid level sensor 408, the liquid level sensor 408 will transmit a stop signal to the circulating water pump 405, and the circulating water pump 405 will stop working to avoid damage caused by prolonged idling. At the same time, the fixing buckle 407 at the top of the outer tank 1 fixes the circulating water pipe 406 to ensure the stable operation of the entire electrolyte solution circulation process. When the inner tank 2 is damaged, it can be lifted by the lifting ring 305 for disassembly and replacement, reducing the maintenance time of the electrolytic cell and ensuring the continuity and safety of zinc electrowinning electrolysis operation. This completes the use process of a zinc electrowinning workshop electrolytic cell leakage circulation device.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leakage circulation device for an electrolytic cell in a zinc electrowinning workshop, comprising an outer tank (1), characterized in that: An inner tank (2) is provided on the inner side of the outer tank (1). An installation component (3) is provided around the inner tank (2). The installation component (3) includes a support corner post (301) welded to the four corners of the inner wall of the outer tank (1). A support corner block (303) is welded to the four corners of the upper side of the inner tank (2). A leakage circulation component (4) is provided on the lower inner side of the outer tank (1). The leakage circulation component (4) includes a liquid collection tank (401) provided at the bottom of the inner side of the outer tank (1). A liquid collection tank (402) is provided in the center of the liquid collection tank (401). A circulation tank (403) is provided on the inner side of the liquid collection tank (402).

2. The electrolyte circulation equipment for an electrolytic cell in a zinc electrowinning workshop according to claim 1, characterized in that, The top of the support corner post (301) is provided with a groove, and a docking groove (302) is provided in the center of the groove. The bottom of the support corner block (303) is welded with a docking pin (304). The shape of the support corner block (303) is the same as the shape of the groove on the support corner post (301). The top of the inner groove (2) is welded with a lifting ring (305) on the left and right sides.

3. The electrolyte circulation equipment for an electrolytic cell in a zinc electrowinning workshop according to claim 1, characterized in that, There is a gap between the outer groove (1) and the inner groove (2), and the edge of the outer groove (1) is higher than the surface of the inner groove (2).

4. The zinc electrowinning workshop electrolytic cell leakage circulation equipment according to claim 1, characterized in that, The surface of the polymer tank (401) is concave inward, and the inner surface of the outer tank (1) is covered with a polypropylene anti-corrosion plate.

5. The electrolyte circulation equipment for an electrolytic cell in a zinc electrowinning workshop according to claim 1, characterized in that, The circulation tank (403) is equipped with a pump pipe (404) inside, and a circulation water pump (405) is installed on the left side of the outer tank (1). The circulation water pump (405) and the pump pipe (404) are connected by a pipe. A filter screen is provided at the port of the pump pipe (404), and a circulation water pipe (406) is installed on the upper side of the circulation water pump (405).

6. The electrolyte circulation equipment for an electrolytic cell in a zinc electrowinning workshop according to claim 1, characterized in that, A fixing buckle (407) is fixedly connected to the top left side of the outer groove (1). The fixing buckle (407) is made of polypropylene. There are two sets of fixing buckles (407) and they are on the same horizontal line.

7. The electrolyte circulation equipment for an electrolytic cell in a zinc electrowinning workshop according to claim 1, characterized in that, The inner wall of the liquid collection tank (402) is equipped with a liquid level sensor (408). There are two sets of liquid level sensors (408) on the same vertical line. The liquid level sensor (408) is connected to the circulating water pump (405) by telecommunications. A filter screen (409) is installed on the upper side of the liquid collection tank (402).

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