A tellurium refining electrolytic cell

Abstract

The utility model relates to the technical field of tellurium electrolysis, particularly relates to a tellurium electrolytic bath, including electrolytic bath body, be equipped with several partition board in electrolytic bath body, the partition board will electrolytic bath body be divided into filter tank, heating tank and several electrolytic sub tank, the lower left of electrolytic bath body is equipped with electrolyte circulating main pipe, the electrolytic sub tank passes through electrolyte output pipe and connects electrolyte circulating work main pipe, and the output end of electrolyte circulating main pipe extends to the inside of filter tank, a flow guide hole is set up on the partition board between filter tank and heating tank, and a serpentine heat exchange pipe is fixed in the inside of heating tank, the utility model discloses a tellurium electrolytic bath can keep the circulation of electrolyte and the constant of temperature, improve electrolytic efficiency.

Description

Technical Field

[0001] This utility model relates to the field of refined tellurium electrolysis technology, and in particular to a refined tellurium electrolytic cell. Background Technology

[0002] Refined tellurium electrolysis is the core process for tellurium purification. It is a core process that uses electrochemical methods to convert low-purity tellurium raw materials into high-purity tellurium. Its principle is based on the reduction and deposition of tellurium ions and the separation of impurities in the electrolyte.

[0003] In existing tellurium electrolysis, the electrolyte in the electrolytic cell is in a static state, and the temperature of the electrolyte in the electrolytic cell is greatly affected by the external ambient temperature. As a result, there are problems such as long electrolysis cycle, high energy consumption, and easy deposition of impurities at the cathode. Utility Model Content

[0004] The purpose of this invention is to provide a refined tellurium electrolyzer that can maintain electrolyte circulation and constant temperature, thereby improving electrolysis efficiency.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A refined tellurium electrolytic cell includes an electrolytic cell body, and a plurality of partition plates are provided in the electrolytic cell body, the partition plates dividing the electrolytic cell body into a filter tank, a heating tank and a plurality of electrolytic sub-tanks; An electrolyte circulation main pipe is provided on the lower left side of the electrolytic cell body. The electrolytic sub-cells are connected to the electrolyte circulation main pipe through electrolyte output pipes. The output end of the electrolyte circulation main pipe extends into the interior of the filter tank. A flow guide hole is provided on the partition plate between the filter tank and the heating tank, and a serpentine heat exchange tube is fixed inside the heating tank; A circulation tank is provided on the right side of the electrolytic cell body. The circulation tank is connected to the heating tank through a liquid delivery pipe. An inlet hole is provided on the circulation tank at a position opposite to the electrolytic sub-tank.

[0006] As an improvement, a filter screen is detachably provided inside the filter tank.

[0007] As an improvement, the filter screen is located between the electrolyte circulation main pipe and the guide hole.

[0008] As an improvement: a first limiting post and a second limiting post are symmetrically arranged above the filter screen. The top of the first limiting post is provided with a first positioning plate, and the top of the second limiting post is provided with a second positioning plate. Both the first positioning plate and the second positioning plate can be fixed above the filter tank by studs.

[0009] As an improvement, a delivery pump is provided on the infusion tube.

[0010] In summary, this utility model has the following beneficial effects: 1. This electrolytic cell can achieve electrolyte circulation and heating during electrolysis, thereby improving the electrolysis efficiency of refined tellurium; 2. The filter plate can filter the electrolyte, prevent the accumulation of impurities, and extend the service life of the electrode plate. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in this utility model, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below.

[0012] Figure 1 A schematic diagram of the overall structure of a refined tellurium electrolyzer. Figure 1 ; Figure 2 A schematic diagram of the overall structure of a refined tellurium electrolyzer. Figure 2 ; The components include: 1. Electrolytic cell body; 2. Divider plate; 3. Filter tank; 4. Heating tank; 5. Electrolysis sub-tank; 6. Electrolyte circulation main pipe; 7. Electrolyte output pipe; 8. Guide hole; 9. Serpentine heat exchanger tube; 10. Circulation tank; 11. Inlet pipe; 12. Inlet hole; 13. Filter screen plate; 14. First limiting post; 15. Second limiting post; 16. First positioning plate; 17. Second positioning plate; 18. Transfer pump; 19. Check valve; 20. Temperature sensor; 21. Control panel. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings.

[0014] Please refer to Figures 1-2 A refined tellurium electrolytic cell includes an electrolytic cell body 1, and a plurality of partition plates 2 are provided inside the electrolytic cell body 1. The partition plates 2 divide the electrolytic cell body 1 into a filter tank 3, a heating tank 4 and a plurality of electrolytic sub-tanks 5. An electrolyte circulation main pipe 6 is provided on the lower left side of the electrolytic cell body 1. The electrolytic sub-tank 5 is connected to the electrolyte circulation main pipe through the electrolyte output pipe 7. The output end of the electrolyte circulation main pipe 6 extends into the interior of the filter tank 3. A flow guide hole 8 is opened on the partition plate between the filter tank 3 and the heating tank 4, and a serpentine heat exchange tube 9 is fixed inside the heating tank 4; A circulation tank 10 is provided on the right side of the electrolytic cell body 1. The circulation tank 10 is connected to the heating tank 4 through a liquid delivery pipe 11. An inlet hole 12 is provided on the circulation tank 10 at a position opposite to the electrolytic sub-tank 5.

[0015] In this embodiment, the electrolytic cell can achieve electrolyte circulation and heating during electrolysis, thereby improving the electrolysis efficiency of refined tellurium.

[0016] A filter screen 13 is detachably installed inside the filter tank 3. The filter screen 13 is located between the electrolyte circulation main pipe 6 and the guide hole 8. A first limiting post 14 and a second limiting post 15 are symmetrically arranged above the filter screen 13. The top of the first limiting post 14 is equipped with a first positioning plate 16, and the top of the second limiting post 15 is equipped with a second positioning plate 17. Both the first positioning plate 16 and the second positioning plate 17 can be fixed above the filter tank 3 by studs. A delivery pump 18 is installed on the infusion pipe 11.

[0017] In this embodiment, the filter plate 13 can filter the electrolyte, avoid the accumulation of impurities, and extend the service life of the electrode plate.

[0018] In this embodiment, a one-way valve 19 is provided on the electrolyte circulation main pipe 6. The one-way valve 19 ensures that the electrolyte can only be transported from the electrolyte circulation main pipe 6 to the filter tank 3. A temperature sensor 20 is provided in the heating tank 4 to sense the electrolyte temperature. The serpentine heat exchange tube 9 is connected to an external steam transfer pump 18. The steam transfer pump 18 can transport steam into the serpentine heat exchange tube 9 to exchange heat with the electrolyte, ultimately achieving the heating of the electrolyte and stabilizing its temperature within a certain range.

[0019] Temperature sensor 20, circulation pump and external steam transfer pump 18 are all connected to control panel 21. Control panel 21 is set on the outer wall of electrolytic cell body 1 and can be used to receive signals from temperature sensor 20 and control the operation of circulation pump and external steam transfer pump 18.

[0020] Working principle: During electrolysis, the electrolyte is transported through the electrolyte output pipe 7 to the electrolyte circulation main pipe 6 and flows into the filter tank 3. After being filtered by the filter screen plate 13 in the filter tank 3, it flows into the heating tank 4 through the guide hole 8. Under the action of the serpentine heat exchange tube 9 in the heating tank 4, the electrolyte is heated, so that the electrolyte temperature is maintained within a certain range.

[0021] The electrolyte in the heating tank 4 is transported to the circulation tank 10 by the transfer pump 18, and then flows back into the corresponding electrolysis sub-tank 5 through the liquid inlet hole 12 on the circulation tank 10 to achieve circulation.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A refined tellurium electrolytic cell, characterized in that, It includes an electrolytic cell body, and a plurality of partition plates are provided in the electrolytic cell body, the partition plates dividing the electrolytic cell body into a filter tank, a heating tank and a plurality of electrolytic sub-tanks; An electrolyte circulation main pipe is provided on the lower left side of the electrolytic cell body. The electrolytic sub-cells are connected to the electrolyte circulation main pipe through electrolyte output pipes. The output end of the electrolyte circulation main pipe extends into the interior of the filter tank. A flow guide hole is provided on the partition plate between the filter tank and the heating tank, and a serpentine heat exchange tube is fixed inside the heating tank; A circulation tank is provided on the right side of the electrolytic cell body. The circulation tank is connected to the heating tank through a liquid delivery pipe. An inlet hole is provided on the circulation tank at a position opposite to the electrolytic sub-tank.

2. The refined tellurium electrolytic cell according to claim 1, characterized in that, A filter screen is detachably installed inside the filter tank.

3. The refined tellurium electrolytic cell according to claim 2, characterized in that, The filter screen is located between the electrolyte circulation main pipe and the guide hole.

4. The refined tellurium electrolytic cell according to claim 2, characterized in that, A first limiting post and a second limiting post are symmetrically arranged above the filter screen. The top of the first limiting post is provided with a first positioning plate, and the top of the second limiting post is provided with a second positioning plate. Both the first positioning plate and the second positioning plate can be fixed above the filter tank by studs.

5. The refined tellurium electrolytic cell according to claim 1, characterized in that, A delivery pump is installed on the infusion tube.

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