Electrolytic tank with internal circulation and low concentration range

Abstract

The utility model relates to the technical field of electrolytic cells, and discloses an internal circulation low-concentration range electrolytic cell which comprises an outer cell, an inner cell is fixedly connected between the front inner side wall and the rear inner side wall of the outer cell, the inner cell is located at the middle end of the outer cell, the cross section of the outer cell and the cross section of the inner cell are in a concentric-square shape, and the top end face of the inner cell is lower than the bottom end face of the outer cell. And a pump body is arranged behind the outer pool. According to the internal-circulation low-concentration range electrolytic cell, the outer cell and the inner cell form a shape like a Chinese character'hui ', electrolyte overflowing from the inner cell can directly enter the outer cell, the electrolyte in the outer cell flows into the inner cell from the bottom of the inner cell through the circulating pump, internal circulation of the electrolyte is formed, electrolyte electrolysis is more uniform, and therefore the stability and continuity of the electrolysis process are guaranteed; and the formation of'concentration range 'between the polar plates is effectively avoided, the calandria and the upward outlet holes are matched, so that the electrolyte flows from the middle to the outside and from bottom to top, the concentration of the electrolyte in the inner tank is more uniform, and the uniform distribution of the electrolyte and the full replacement of metal ions are further promoted.

Description

Technical Field

[0001] The present application relates to the technical field of electrolytic cells, and in particular to an electrolytic cell with an internal circulation and low concentration difference. Background Art

[0002] An electrolytic cell is a device used to convert ionic compounds into elements or ions through electrolysis. It primarily consists of a cell, an anode, and a cathode. Most electrolytic cells also use a diaphragm to separate the anode and cathode compartments. Depending on the electrolyte, electrolytic cells can be categorized into three types: aqueous solution electrolytic cells, molten salt electrolytic cells, and non-aqueous solution electrolytic cells.

[0003] The existing electrolytic cell is a square cell with multiple sets of energized plates inserted at intervals inside. The metal ions in the electrolyte are replaced to obtain non-ferrous metals. However, during the electrolysis process of the plates, the metal ion concentration in the electrolyte in the middle area of the electrolytic cell drops faster, resulting in a "concentration range difference" between the plates, resulting in low efficiency in the production of non-ferrous metals and a decrease in the pH value of the electrolyte. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the present application provides an electrolytic cell with an internal circulation and low concentration difference, which has the advantages of high electrolysis efficiency and solves the problem of "concentration difference" between the electrode plates, resulting in low efficiency in the production of non-ferrous metals and a decrease in the pH value of the electrolyte.

[0005] To achieve the above objectives, the present application provides the following technical solution: an electrolytic cell with an internal circulation and low concentration difference, comprising an outer tank, an inner tank fixedly connected between the front and rear inner side walls of the outer tank, and the inner tank being located at the middle end of the outer tank, the outer tank and the inner tank having a circular cross-section, the top end surface of the inner tank being lower than the bottom end surface of the outer tank, and a pump body being provided at the rear of the outer tank;

[0006] The bottom end of the back side of the outer pool is fixedly connected to a liquid inlet pipe, the other end of the liquid inlet pipe is fixedly connected to the input end of the pump body, a row pipe is fixedly embedded between the bottom ends of the front and rear inner walls of the inner pool, the rear end of the row pipe is fixedly connected to the output end of the pump body, and the outer surface of the row pipe is provided with multiple upward outlet holes.

[0007] Through the above scheme, the outer tank and the inner tank form a U-shaped structure, and the electrolyte overflowing from the inner tank can directly enter the outer tank. The electrolyte in the outer tank then flows into the bottom of the inner tank through the circulation pump, forming an internal circulation of the electrolyte, making the electrolyte electrolysis more uniform, thereby ensuring the stability and continuity of the electrolysis process, and effectively avoiding the formation of "concentration extremes" between the plates. In combination with the drainage pipe and the upward outlet hole, the electrolyte flows from the middle to the outside and from the bottom to the top, making the electrolyte concentration in the inner tank more uniform, further promoting the uniform distribution of the electrolyte and the full replacement of metal ions.

[0008] Furthermore, a plurality of electrode plates are installed above the outer tank, and each of the electrode plates is located inside the inner tank.

[0009] Through the above scheme, by setting the electrode plates, it is possible to replace the metal ions in the electrolyte to obtain non-ferrous metals.

[0010] Furthermore, a feed pipe is fixedly connected to the top of the right side of the inner pool, and the outer surface of the feed pipe is fixedly embedded in the outer pool.

[0011] Through the above solution and the provision of the feed pipe, it is possible to facilitate the use of conveying materials.

[0012] Furthermore, the bottom end of the left side of the inner tank and the bottom end of the left side of the outer tank are both fixedly connected with a discharge pipe.

[0013] Through the above solution and the provision of the discharge pipe, the purpose of discharging materials can be achieved.

[0014] Furthermore, an electric valve is installed inside each of the discharge pipe and the feed pipe.

[0015] Through the above solution, by setting the electric valve, it is convenient for the user to close the discharge pipe and the feed pipe.

[0016] Furthermore, a flange is installed at one end of each of the discharge pipe and feed pipe.

[0017] Through the above solution, the flange is provided to facilitate the user to connect with the outside world.

[0018] Furthermore, the pump body is an axial flow pump.

[0019] Through the above solution, by setting the axial flow pump, the material can be transported efficiently.

[0020] Furthermore, a support frame is fixedly installed on the back of the outer tank, and the pump body is fixedly connected to the support frame.

[0021] Through the above solution, the pump body can be supported and fixed by setting the support frame.

[0022] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0023] The electrolytic cell with a low concentration gradient in the internal circulation forms a shape like a Chinese character 'hui' composed of an outer pool and an inner pool. The electrolyte overflowing from the inner pool can directly enter the interior of the outer pool, and the electrolyte in the outer pool then flows into the inner pool from the bottom through a circulation pump, forming an internal circulation of the electrolyte, making the electrolysis of the electrolyte more uniform, thus ensuring the stability and continuity of the electrolysis process, effectively avoiding the formation of 'concentration gradient' between the electrode plates. In cooperation with the drain pipes and upward outlet holes, the electrolyte flows from the middle to the outside and from the bottom to the top, making the concentration of the electrolyte in the inner tank more uniform, further promoting the uniform distribution of the electrolyte and the full replacement of metal ions. Brief Description of the Drawings

[0024] Figure 1 It is a cross-sectional view of the front view of the overall structure of this application;

[0025] Figure 2 It is a three-dimensional schematic diagram of the overall structure of this application;

[0026] Figure 3 It is a cross-sectional view of the three-dimensional schematic diagram of the overall structure of this application;

[0027] Figure 4 For this application Figure 3 It is an enlarged schematic diagram of the structure at position A in the middle.

[0028] In the figure:

[0029] 1. Outer pool; 2. Inner pool; 3. Pump body; 4. Liquid inlet pipe; 5. Drain pipe; 6. Outlet hole; 7. Electrode plate; 8. Feed pipe; 9. Discharge pipe; 10. Electric valve; 11. Flange; 13. Support frame. Detailed Embodiment

[0030] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0031] Please refer to Figure 1 and Figure 2 , in the electrolytic cell with a low concentration gradient in the internal circulation in this embodiment, it includes an outer pool 1. There is a fixed connection between the front and rear inner side walls of the outer pool 1 with an inner pool 2, and the inner pool 2 is located in the middle of the outer pool 1. The cross-sections of the outer pool 1 and the inner pool 2 are in the shape of a Chinese character 'hui'. The top surface of the inner pool 2 is lower than the bottom surface of the outer pool 1. There is a pump body 3 behind the outer pool 1.

[0032] Please refer to Figure 1 , Figure 2 and Figure 3, on the top right side of the inner pool 2, a feed pipe 8 is fixedly connected. The outer surface of the feed pipe 8 is fixedly embedded with the outer pool 1. Through the setting of the feed pipe 8, it is convenient to convey materials. Above the outer pool 1, multiple electrode plates 7 are installed, and each electrode plate 7 is located inside the inner pool 2. Through the setting of the electrode plates 7, it is possible to displace metal ions in the electrolyte to obtain non-ferrous metals. At the bottom left side of the inner pool 2 and the bottom left side of the outer pool 1, discharge pipes 9 are fixedly connected. Through the setting of the discharge pipes 9, the purpose of discharging materials can be achieved.

[0033] Please refer to Figure 1 , Figure 2 and Figure 3 , an electric valve 10 is installed inside each of the discharge pipe 9 and the feed pipe 8. Through the setting of the electric valve 10, it is convenient for the user to close the discharge pipe 9 and the feed pipe 8. At one end of each of the discharge pipe 9 and the feed pipe 8, a flange 11 is installed. Through the setting of the flange 11, it is convenient for the user to dock with the outside.

[0034] Please refer to Figure 1 , Figure 3 and Figure 4 , at the bottom back of the outer pool 1, a liquid inlet pipe 4 is fixedly connected. The other end of the liquid inlet pipe 4 is fixedly connected to the input end of the pump body 3. Between the bottom ends of the front and rear inner side walls of the inner pool 2, a discharge pipe 5 is fixedly embedded. The rear end of the discharge pipe 5 is fixedly connected to the output end of the pump body 3. Multiple upward outlet holes 6 are formed on the outer surface of the discharge pipe 5. The pump body 3 is an axial flow pump. Through the setting of the axial flow pump, it is possible to efficiently convey materials. A support frame 13 is fixedly installed on the back of the outer pool 1, and the pump body 3 is fixedly connected to the support frame 13. Through the setting of the support frame 13, the pump body 3 can be supported and fixed.

[0035] In the electrolytic cell with low internal circulation concentration difference in this embodiment, the outer pool 1 and the inner pool 2 form a shape like a Chinese character 'hui'. The electrolyte overflowing from the inner pool 2 can directly enter the inside of the outer pool 1. The electrolyte in the outer pool 1 then flows into the inner pool 2 from the bottom through the circulation pump, forming an internal circulation of the electrolyte, making the electrolysis of the electrolyte more uniform, thus ensuring the stability and continuity of the electrolysis process, effectively avoiding the formation of 'concentration difference' between the electrode plates 7.配合排管5及朝上出孔6,使得电解液由中间向外,由下而上流动,使内槽内电解液浓度更为均匀,进一步促进了电解液的均匀分布和金属离子的充分置换。

[0036] It should be noted that the pump body 3 and the support frame 13 are fixedly connected by bolts and can be disassembled.

[0037] The working principle of the above embodiment is as follows: by feeding the raw material into the inner tank 2 through the feed pipe 8, electrolyzing it through the electrode plate 7, the overflowed raw material enters the inner wall of the outer tank 1, and the raw material inside the outer tank 1 is extracted by the pump body 3 into the bottom of the inner tank 2, thereby realizing the internal circulation of the raw material, flowing from the middle to the outside and from bottom to top, making the electrolyte concentration in the inner tank more uniform.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0039] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An electrolytic cell with an internal circulation and low concentration difference, comprising an outer tank (1), characterized in that: An inner pool (2) is fixedly connected between the front and rear inner side walls of the outer pool (1), and the inner pool (2) is located at the middle end of the outer pool (1). The cross-sections of the outer pool (1) and the inner pool (2) are circular, and the top end surface of the inner pool (2) is lower than the bottom end surface of the outer pool (1). A pump body (3) is provided at the rear of the outer pool (1); The bottom end of the back side of the outer tank (1) is fixedly connected to a liquid inlet pipe (4), the other end of the liquid inlet pipe (4) is fixedly connected to the input end of the pump body (3), and a discharge pipe (5) is fixedly embedded between the bottom ends of the front and rear inner side walls of the inner tank (2), the rear end of the discharge pipe (5) is fixedly connected to the output end of the pump body (3), and the outer surface of the discharge pipe (5) is provided with a plurality of upward outlet holes (6); A plurality of pole plates (7) are installed above the outer tank (1), and each pole plate (7) is located inside the inner tank (2); The outer tank (1) and the inner tank (2) form a U-shaped structure. The electrolyte overflowing from the inner tank (2) can directly flow into the outer tank (1). The electrolyte in the outer tank (1) then flows into the bottom of the inner tank (2) through the pump body (3), thereby forming an internal circulation of the electrolyte.

2. The electrolytic cell with internal circulation and low concentration difference according to claim 1, characterized in that: The top end of the right side of the inner pool (2) is fixedly connected to a feed pipe (8), and the outer surface of the feed pipe (8) is fixedly embedded in the outer pool (1).

3. The electrolytic cell with internal circulation and low concentration difference according to claim 1, characterized in that: The bottom end of the left side of the inner tank (2) and the bottom end of the left side of the outer tank (1) are both fixedly connected to a discharge pipe (9).

4. The electrolytic cell with internal circulation and low concentration difference according to claim 3, characterized in that: An electric valve (10) is installed inside each of the discharge pipe (9) and the feed pipe (8).

5. The electrolytic cell with internal circulation and low concentration difference according to claim 3, characterized in that: A flange (11) is installed at one end of each of the discharge pipe (9) and the feed pipe (8).

6. The electrolytic cell with internal circulation and low concentration difference according to claim 1, characterized in that: The pump body (3) is an axial flow pump.

7. The electrolytic cell with internal circulation and low concentration difference according to claim 1, characterized in that: A support frame (13) is fixedly mounted on the back of the outer tank (1), and the pump body (3) is fixedly connected to the support frame (13).

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