Electrolyte circulation temperature control mechanism and silver electrolytic refining equipment

Abstract

The electrolyte circulation temperature control mechanism comprises an electrolysis mechanism, the electrolysis mechanism comprises an electrolytic tank, an anode bar and a cathode bar, and a cooling mechanism is arranged on one side of the electrolytic tank; the cooling mechanism comprises a cooling pool, a draw-off pump is arranged on one side of the cooling pool, the liquid pumping end of the draw-off pump communicates with a liquid pumping pipe, one end of the liquid pumping pipe communicates with the lower portion of the surface of the electrolytic tank, a cooling coil pipe is fixed to the bottom of the inner wall of the cooling pool, and one end of the cooling coil pipe penetrates out of the top of the cooling pool and communicates with a liquid inlet valve; one end of the cooling coil penetrates through the lower part of the surface of the cooling pool and is communicated with a drain valve, and the surface of the cooling pool is communicated with a reflux pump through a pipeline. The circulating temperature control device has the advantage of being capable of carrying out circulating temperature control on the electrolyte, and solves the problem that the workshop environment and the electrolysis effect are affected due to the fact that the temperature of the electrolyte is raised after the electrolyte is used for a long time at present.

Description

Technical Field

[0001] The utility model relates to the technical field of silver electrolysis, in particular to an electrolyte circulation temperature control mechanism and silver electrolysis refining equipment. Background Art

[0002] Silver electrolytic refining is a widely used process for purifying silver at home and abroad. The raw material is crude silver containing 90-99% silver, and the refined product is national standard No. 1 silver containing 99.99% silver. During the electrolysis process, the crude silver anode is continuously dissolved, and pure silver is continuously precipitated at the cathode in the form of silver powder and falls to the bottom of the tank, thereby achieving the purpose of silver purification.

[0003] During the electrolysis process, the electrolyte temperature will continue to rise, and the electrolyte components may become more unstable at high temperatures, causing the nitric acid in the electrolyte to volatilize and generate harmful gases or insoluble sediments, thereby polluting the workshop environment and affecting the electrolysis effect. For this reason, we proposed an electrolyte circulation temperature control mechanism and silver electrolytic refining equipment. Utility Model Content

[0004] The utility model aims to provide an electrolyte circulation temperature control mechanism and silver electrolytic refining equipment, which have the advantage of being able to circulate and control the temperature of the electrolyte, and solve the problem that the current electrolyte will heat up after long-term use, resulting in the influence of the workshop environment and the electrolysis effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electrolyte circulation temperature control mechanism and silver electrolytic refining equipment, comprising an electrolytic mechanism, the electrolytic mechanism comprising an electrolytic cell, an anode rod and a cathode rod, and a cooling mechanism is provided on one side of the electrolytic cell;

[0006] The cooling mechanism includes a cooling pool, one side of the cooling pool is provided with an extraction pump, the extraction end of the extraction pump is connected to a extraction pipe, one end of the extraction pipe is connected to the bottom of the surface of the electrolytic cell, a cooling coil is fixed to the bottom of the inner wall of the cooling pool, one end of the cooling coil passes through the top of the cooling pool and is connected to a liquid inlet valve, one end of the cooling coil passes through the bottom of the cooling pool surface and is connected to a liquid discharge valve, the surface of the cooling pool is connected to a reflux pump through a pipeline, the liquid outlet end of the reflux pump is connected to a reflux pipe, the top of the cooling pool surface is connected to a circulation pump through a pipeline, the extraction end of the circulation pump is connected to a circulation pipe, and a semiconductor refrigerator is fixed to the surface of the cooling pool.

[0007] As a preferred electrolyte circulation temperature control mechanism and silver electrolytic refining equipment of the utility model, a closed shell is fixed on the top of the electrolytic cell, an electric push rod is fixed on the top of the closed shell, one end of the electric push rod penetrates into the closed shell and is fixed with a cleaning scraper, the cleaning scraper penetrates the electrolytic cell and is slidably connected to the surface of the cathode rod.

[0008] As a preferred embodiment of an electrolyte circulation temperature control mechanism and silver electrolytic refining equipment of the utility model, the top of the electrolytic cell is connected to a filter shell, the top of the filter shell is connected to an exhaust fan, and a filter plate is fixed to the inner wall of the filter shell.

[0009] As a preferred embodiment of the electrolyte circulation temperature control mechanism and silver electrolytic refining equipment of the utility model, a driving motor is fixed on the top of the cooling pool, and the output shaft of the driving motor passes through the cooling pool and is fixed with a stirring rod.

[0010] As a preferred embodiment of the electrolyte circulation temperature control mechanism and silver electrolytic refining equipment of the utility model, the cooling coil and the stirring rod are both made of titanium alloy.

[0011] As a preferred embodiment of the electrolyte circulation temperature control mechanism and silver electrolytic refining equipment of the utility model, temperature sensors are installed on the surface of the cooling pool and the surface of the electrolytic pool.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model is provided with a cooling mechanism, wherein the extraction pump can extract the electrolyte after the temperature rises inside the electrolytic cell through the extraction pipe and transport it to the inside of the cooling cell, and the cooling coil can be connected with the external cooling medium through the liquid inlet valve, so that the cooling medium flows through the cooling mechanism inside the cooling coil and is discharged through the drain valve, so that the cooling coil can perform preliminary heat exchange treatment on the electrolyte, thereby reducing the temperature of the electrolyte, and when the circulation pump is started, it can extract the electrolyte below the cooling cell, and then transport it to the top of the cooling cell through the pipeline, so as to realize the electrolytic The liquid circulates inside the cooling pool, which can form forced convection and effectively eliminate the temperature stratification of the electrolyte in the cooling pool, ensuring that the temperature of the electrolyte in each part of the pool is more uniform, which is crucial to maintaining the stability of the entire electrolysis process and improving the cooling effect. The semiconductor refrigerator can further provide a cooling effect on the cooling pool when started, making the electrolyte cooling efficiency better. After the electrolyte is cooled, the reflux pump can be turned on to allow the electrolyte to flow back to the electrolytic cell through the reflux pipe to complete the electrolyte circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of another viewing angle of the utility model;

[0016] Figure 3 It is a partial structural schematic diagram of the utility model;

[0017] Figure 4 It is a cross-sectional structural diagram of the electrolysis mechanism in the utility model;

[0018] Figure 5 It is a partial structural schematic diagram of the cooling mechanism in the utility model;

[0019] Figure 6 It is a schematic diagram of the local structure of the cooling mechanism in the utility model.

[0020] In the figure: 1. electrolysis mechanism; 101. electrolysis cell; 102. anode rod; 103. cathode rod; 104. closing shell; 105. electric push rod; 106. cleaning scraper; 107. filter shell; 108. exhaust fan; 109. filter plate; 2. cooling mechanism; 201. cooling cell; 202. extraction pump; 203. extraction pipe; 204. cooling coil; 205. liquid inlet valve; 206. discharge valve; 207. reflux pump; 208. reflux pipe; 209. circulation pump; 210. circulation pipe; 211. semiconductor refrigerator; 212. drive motor; 213. stirring rod; 214. temperature sensor. DETAILED DESCRIPTION

[0021] See also Figure 1-Figure 6 , an electrolyte circulation temperature control mechanism and silver electrolytic refining equipment, comprising an electrolytic mechanism 1, the electrolytic mechanism 1 comprising an electrolytic cell 101, an anode rod 102 and a cathode rod 103, the anode rod 102 and the cathode rod 103 are both fixed to the top of the inner wall of the electrolytic cell 101, and a cooling mechanism 2 is arranged on one side of the electrolytic cell 101;

[0022] The electrolysis mechanism 1 can perform electrolysis treatment, and the cooling mechanism 2 can perform cooling treatment on the electrolyte.

[0023] The cooling mechanism 2 includes a cooling pool 201, and an extraction pump 202 is provided on one side of the cooling pool 201. The extraction end of the extraction pump 202 is connected to a liquid extraction pipe 203. One end of the liquid extraction pipe 203 is connected to the bottom of the surface of the electrolytic cell 101. The liquid outlet end of the extraction pump 202 is connected to the surface of the cooling pool 201 through a pipeline. A cooling coil 204 is fixed to the bottom of the inner wall of the cooling pool 201. One end of the cooling coil 204 passes through the top of the cooling pool 201 and is connected to a liquid inlet valve 205. One end of the cooling coil 204 passes through the bottom of the cooling pool 201 and is connected to the liquid inlet valve 205. A drain valve 206 is connected, and a reflux pump 207 is connected to the surface of the cooling pool 201 through a pipeline. The liquid outlet end of the reflux pump 207 is connected to a reflux pipe 208, and one end of the reflux pipe 208 is connected to the surface of the cooling pool 201. A circulation pump 209 is connected to the surface of the cooling pool 201 through a pipeline, and the liquid extraction end of the circulation pump 209 is connected to a circulation pipe 210, and one end of the circulation pipe 210 is connected to the surface of the cooling pool 201. A semiconductor refrigerator 211 is fixed on the surface of the cooling pool 201, and a heat dissipation structure is installed on the surface of the semiconductor refrigerator 211;

[0024] The extraction pump 202 can extract the heated electrolyte inside the electrolytic cell 101 through the extraction pipe 203 and transport it to the cooling pool 201, and the cooling coil 204 can be connected with the external cooling medium through the liquid inlet valve 205, so that the cooling medium flows inside the cooling coil 204 and is discharged through the drain valve 206, so that the cooling coil 204 can perform preliminary heat exchange treatment on the electrolyte to reduce the temperature of the electrolyte, and the circulation pump 209 will be able to extract the electrolyte at the bottom of the cooling pool 201 when it is started, and then transport it to the top of the cooling pool 201 through the pipeline, so that the electrolyte can be heated at room temperature. The circulating flow inside the cooling pool 201 can form forced convection, which can effectively eliminate the temperature stratification of the electrolyte in the cooling pool 201 and ensure that the electrolyte temperature in each part of the pool is more uniform, which is crucial to maintaining the stability of the entire electrolysis process and improving the cooling effect. The semiconductor refrigerator 211 can further provide a cooling effect on the cooling pool 201 when started, so that the electrolyte cooling efficiency is better. After the electrolyte is cooled, the reflux pump 207 can be turned on to allow the electrolyte to flow back to the inside of the electrolytic cell 101 through the reflux pipe 208 to complete the electrolyte circulation.

[0025] Furthermore, a closed shell 104 is fixed on the top of the electrolytic cell 101, an electric push rod 105 is fixed on the top of the closed shell 104, one end of the electric push rod 105 penetrates into the closed shell 104 and is fixed with a cleaning scraper 106, the cleaning scraper 106 penetrates the electrolytic cell 101 and is slidably connected to the surface of the cathode rod 103;

[0026] During the electrolysis process, silver ions adhere to the cathode rod 103 to form silver powder. When the electric push rod 105 is started, the cleaning scraper 106 can move downward so that the cleaning scraper 106 can scrape the surface of the cathode rod 103. In this way, the silver powder attached to the cathode rod 103 can be scraped off, making it less likely for the silver powder to affect the electrolysis effect.

[0027] Furthermore, the top of the electrolytic cell 101 is connected to a filter housing 107, the top of the filter housing 107 is connected to an exhaust fan 108, and a filter plate 109 is fixed to the inner wall of the filter housing 107;

[0028] When the exhaust fan 108 is started, it can extract the air inside the electrolytic cell 101, and the filter plate 109 can filter the air to prevent harmful gases generated during electrolysis from affecting the factory environment.

[0029] Furthermore, a driving motor 212 is fixed on the top of the cooling pool 201, and the output shaft of the driving motor 212 passes through the cooling pool 201 and is fixed with a stirring rod 213;

[0030] When started, the driving motor 212 can drive the stirring rod 213 to rotate. Stirring can promote uniform temperature distribution inside the electrolyte, avoid local overheating, and make the electrolyte more fully contact with the cooling coil 204 and the inner wall of the electrolytic cell 101 at the cooling point of the semiconductor refrigerator 211, thereby improving the heat exchange efficiency. In this way, heat can be transferred from the electrolyte to the cooling medium more quickly, thereby accelerating the cooling process.

[0031] Furthermore, the cooling coil 204 and the stirring rod 213 are both made of titanium alloy;

[0032] The titanium alloy material has good acid corrosion resistance, which can ensure that the cooling coil 204 and the stirring rod 213 have a long service life in the electrolyte.

[0033] Furthermore, temperature sensors 214 are installed on the surface of the cooling pool 201 and the surface of the electrolytic cell 101;

[0034] The temperature sensor 214 can monitor the temperature of the electrolyte inside the electrolytic cell 101 and the cooling cell 201 in real time, so that the operator can control the electrolyte temperature more accurately.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrolyte circulation temperature control mechanism and silver electrolytic refining equipment, comprising an electrolytic mechanism (1), wherein the electrolytic mechanism (1) comprises an electrolytic cell (101), an anode rod (102) and a cathode rod (103), characterized in that: A cooling mechanism (2) is provided on one side of the electrolytic cell (101); The cooling mechanism (2) comprises a cooling pool (201), one side of the cooling pool (201) is provided with an extraction pump (202), the extraction end of the extraction pump (202) is connected to a extraction pipe (203), one end of the extraction pipe (203) is connected to the bottom of the surface of the electrolytic cell (101), a cooling coil (204) is fixed to the bottom of the inner wall of the cooling pool (201), one end of the cooling coil (204) passes through the top of the cooling pool (201) and is connected to a liquid inlet valve (205), and the cooling coil One end of (204) passes through the cooling pool (201) below the surface and is connected to a drain valve (206). The cooling pool (201) surface is connected to a reflux pump (207) through a pipeline. The liquid outlet end of the reflux pump (207) is connected to a reflux pipe (208). The cooling pool (201) surface is connected to a circulation pump (209) through a pipeline. The liquid extraction end of the circulation pump (209) is connected to a circulation pipe (210). A semiconductor refrigerator (211) is fixed to the cooling pool (201) surface.

2. The electrolyte circulation temperature control mechanism and silver electrolytic refining equipment according to claim 1, characterized in that: A closed shell (104) is fixed on the top of the electrolytic cell (101), an electric push rod (105) is fixed on the top of the closed shell (104), one end of the electric push rod (105) penetrates into the closed shell (104) and is fixed with a cleaning scraper (106), and the cleaning scraper (106) penetrates the electrolytic cell (101) and is slidably connected to the surface of the cathode rod (103).

3. The electrolyte circulation temperature control mechanism and silver electrolytic refining equipment according to claim 1, characterized in that: The top of the electrolytic cell (101) is connected to a filter housing (107), the top of the filter housing (107) is connected to an exhaust fan (108), and a filter plate (109) is fixed to the inner wall of the filter housing (107).

4. The electrolyte circulation temperature control mechanism and silver electrolytic refining equipment according to claim 1, characterized in that: A driving motor (212) is fixed on the top of the cooling pool (201), and an output shaft of the driving motor (212) passes through the cooling pool (201) and is fixed with a stirring rod (213).

5. The electrolyte circulation temperature control mechanism and silver electrolytic refining equipment according to claim 4, characterized in that: The cooling coil (204) and the stirring rod (213) are both made of titanium alloy.

6. The electrolyte circulation temperature control mechanism and silver electrolytic refining equipment according to claim 1, characterized in that: Temperature sensors (214) are installed on the surface of the cooling pool (201) and the surface of the electrolytic cell (101).

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