Circulating liquid feeding device for electrolytic bath

Abstract

The utility model discloses a circulating liquid feeding device for an electrolytic bath, which comprises the electrolytic bath, cathode and anode plates and a circulating pipeline, the cathode and anode plates are uniformly distributed in the electrolytic bath, and the circulating pipeline comprises a liquid inlet pipe, a liquid inlet box, small holes and hooks; the small hole is formed in the upper end of one side of the liquid inlet box; the liquid inlet box is positioned inside the liquid inlet end of the electrolytic bath and is connected with the wall of the electrolytic bath through the hook and the small hole; the liquid inlet box is provided with a liquid outlet and a liquid inlet; the liquid inlet is formed in the upper end of the liquid inlet box; the liquid outlet is formed in one side of the lower end of the liquid inlet box; one end of the liquid inlet pipe is connected with the circulating pipeline, and the other end extends into the liquid inlet box through the liquid inlet; according to the liquid inlet box, the flowing speed of electrolyte can be effectively reduced by increasing the cross sectional area of electrolyte outlet, anode mud deposited at the bottom end of an electrolytic bath can be prevented from rolling over through the liquid outlet in one side of the liquid inlet box when the electrolyte flows, and air is exhausted through the liquid inlet in the top end of the liquid inlet box; and the phenomenon that the purity of metal and the appearance of a product are influenced by air and anode mud is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolysis, and particularly relates to an electrolytic cell circulating liquid supply device. Background Art

[0002] In the process of metal electrolytic refining, the circulation of the electrolyte plays a crucial role. This process not only promotes the mass transfer and heat transfer inside the electrolytic cell, but also helps to maintain the uniformity of the electrolyte composition and temperature, thereby reducing the concentration polarization phenomenon and ensuring the smooth progress of the electrolysis process.

[0003] Traditional electrolytic refining usually adopts the "bottom-in and top-out" electrolyte circulation mode. In this mode, the electrolyte enters from the bottom of one end of the electrolytic cell through a closed pipeline, flows from bottom to top in the cell, and finally discharges from the overflow port at the upper part of the other end. However, there are some deficiencies in this traditional circulation mode.

[0004] Firstly, the flow rate of the electrolyte at the outlet of the inlet pipeline is relatively high, which is not conducive to the settlement of anode mud and may affect the quality and purity of the cathode product. The incomplete settlement of anode mud will cause it to mix with the cathode metal, affecting the purity of the metal and reducing the quality of the product.

[0005] Secondly, air may be mixed into the electrolyte during the circulation process. These air is difficult to discharge in the closed pipeline. Once it enters the electrolytic cell, it will form holes on the surface of the cathode product, affecting the appearance and performance of the product. Furthermore, the air in the electrolyte will cause the electrolyte to roll during the rising process, which will not only interfere with the normal settlement of anode mud, but also may cause mechanical inclusion of anode mud, further affecting the quality of the cathode product and resulting in the loss of precious metals. Content of the Utility Model

[0006] The purpose of the utility model is to provide an electrolytic cell circulating liquid supply device that can slow down the flow rate of the electrolyte, improve the product quality, and is convenient for disassembly and replacement, so as to solve the technical problems that the anode mud at the bottom of the electrolytic cell rolls and combines with the cathode metal due to the too high flow rate during the electrolyte circulation, reducing the product purity, and the air in the electrolyte causes holes in the cathode product, affecting the product quality.

[0007] In order to solve the above technical problems, the following solutions are adopted in the utility model:

[0008] An electrolytic cell circulating liquid supply device, comprising an electrolytic cell, anode and cathode plates, and a circulating pipeline. The anode and cathode plates are evenly distributed inside the electrolytic cell. It further includes a liquid inlet pipe, a liquid inlet tank, small holes, and hooks. The small holes are opened at the upper end of one side of the liquid inlet tank. The liquid inlet tank is located inside the liquid inlet end of the electrolytic cell and is connected to the cell wall of the electrolytic cell through the hooks and small holes. One end of the hook passes through the small hole, hooks the liquid inlet tank through the small hole, and the other end is hooked on the cell wall at the liquid inlet end of the electrolytic cell. The liquid inlet tank is provided with a liquid outlet and a liquid inlet. The liquid inlet is opened at the upper end of the liquid inlet tank. The liquid outlet is opened at one side of the lower end of the liquid inlet tank. One end of the liquid inlet pipe is connected to the circulating pipeline, and the other end extends into the interior of the liquid inlet tank through the liquid inlet. A circulating pump is provided on the circulating pipeline, and the electrolyte circulates through the circulating pipeline and the circulating pump and then enters the liquid inlet tank through the liquid inlet pipe.

[0009] The cross-sectional area of the liquid inlet tank is larger than that of the liquid inlet pipe, and the liquid outlet at the lower side of the liquid inlet tank is larger than the cross-sectional area of the liquid inlet pipe. The electrolyte flows out through the liquid outlet with a larger opening inside the liquid inlet tank. When the cross-sectional area increases, the velocity of the liquid must decrease to maintain the flow rate conservation, so that the flow rate of the electrolyte entering the electrolytic cell slows down, which is beneficial to the sedimentation of anode mud.

[0010] When an external power supply is energized and current passes through the electrolytic cell, an electric field is formed between the anode and cathode of the anode and cathode plates, and an electrolysis reaction occurs on the metal. During the electrolysis process, impurities and contaminants fall off from the anode in the form of anode mud and precipitate at the bottom of the electrolytic cell, thereby realizing the purification of the metal.

[0011] Further, a tee is provided at the liquid outlet end of the liquid inlet pipe. The outlet position of the tee is lower than the normal production liquid level of the electrolytic cell, and the range is 5 - 10 mm. The electrolyte is shunted through the tee and enters the liquid inlet tank. When the electrolyte flows out of the liquid inlet pipe, the electrolyte is blocked by the plates on both sides of the liquid inlet tank to slow down the flow rate of the electrolyte. The outlet of the liquid inlet pipe is located below the liquid level of the electrolyte, avoiding the phenomenon that the electrolyte splashes when it flows out of the liquid inlet pipe and impacts the liquid surface.

[0012] Further, the liquid outlet at one side of the lower end of the liquid inlet tank is 200 - 500 mm away from the bottom of the electrolytic cell. The electrolyte flows out through the liquid outlet on one side of the liquid inlet tank, avoiding the situation that the electrolyte disturbs the anode mud precipitated at the bottom when entering the electrolytic cell, resulting in floating anode mud in the electrolyte and interfering with the quality of the cathode product.

[0013] Further, the hook is in a "Ji" shape. The liquid inlet tank is suspended on the cell wall of the electrolytic cell through the small hole and the "Ji" - shaped hook. By passing the "Ji" - shaped hook through the small hole of the liquid inlet tank, the liquid inlet tank is suspended on the side wall of the electrolytic cell, which is convenient for disassembly, replacement, and maintenance as a whole.

[0014] Further, the material of the liquid inlet tank is fiberglass reinforced plastic or stainless steel. The liquid inlet tank made of fiberglass reinforced plastic or stainless steel can avoid being corroded and damaged by the electrolyte.

[0015] The working principle of the present utility model is as follows:

[0016] During use, pass the hook through the small hole of the liquid inlet tank. The liquid inlet tank is suspended at the liquid inlet end of the electrolyte circulation through the hook. Insert the liquid inlet pipe into the electrolyte in the liquid inlet tank through the liquid inlet of the liquid inlet tank. The outlet of the liquid inlet pipe is located below the liquid level of the electrolyte in the liquid inlet tank. After the electrolytic cell is powered on and starts to work, an electric field is formed between the anode and the cathode of the anode and cathode plates in the electrolytic cell, and an electrolytic reaction occurs on the metal. During the electrolysis process, impurities and contaminants fall off from the anode in the form of anode mud and precipitate at the bottom of the electrolytic cell. The electrolyte flows out from above the liquid outlet end of the electrolytic cell and enters the circulation pipeline. The circulation pump drives the electrolyte to circulate in the circulation pipeline. The circulated electrolyte is branched into the liquid inlet tank through the three-way pipe of the liquid inlet pipe. The electrolyte flows towards the tank plates on both sides of the liquid inlet tank, and the flow direction of the electrolyte is changed by the tank plates to reduce the kinetic energy. At the same time, the cross-sectional area of the electrolyte outlet is increased, which can effectively slow down the flow rate of the electrolyte. The electrolyte with the reduced flow rate flows out through the liquid outlet on one side of the liquid inlet tank, avoiding the phenomenon that the flowing electrolyte drives the anode mud precipitated at the bottom of the electrolytic cell to roll, affecting the purity of the metal, and forming mechanical inclusions that affect the quality of the cathode product. After the electrolyte enters the liquid inlet tank, the air inside is discharged from the liquid inlet at the upper end of the liquid inlet tank and does not contact the anode and cathode plates of the electrolytic cell, effectively avoiding the phenomenon that holes are formed on the surface of the product on the cathode plate.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. By increasing the cross-sectional area of the electrolyte outlet, the present utility model can effectively slow down the flow rate of the electrolyte. Through the liquid outlet on one side of the liquid inlet tank, it can avoid the phenomenon that when the electrolyte flows, the anode mud precipitated at the bottom of the electrolytic cell rolls, affecting the purity of the metal, and forming mechanical inclusions that affect the quality of the cathode product. And when the air in the electrolyte is in the liquid inlet tank, it can be discharged through the liquid inlet at the top of the liquid inlet tank, avoiding the phenomenon that the air combines with the product on the cathode plate to form holes and affecting the appearance of the product.

[0019] 2. The liquid inlet tank of the present utility model is suspended on the side wall of the electrolytic cell by a "Ji"-shaped hook, which is convenient for disassembly and replacement, improving the maintenance convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the front view structural schematic diagram of the present utility model;

[0021] Figure 2 is the front view sectional structural schematic diagram of the present utility model;

[0022] Figure 3 This is a schematic diagram of the liquid inlet tank structure of the present utility model.

[0023] In the figure: 1. Liquid inlet pipe; 101. Three-way pipe; 2. Liquid inlet tank; 201. Liquid outlet; 202. Liquid inlet; 3. Small holes; 4. Electrolytic cell; 5. Hook; 6. Anode and cathode plates; 7. Circulation pipeline. Specific implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Next, a further detailed description of an electrolytic cell circulating liquid supply device of the present utility model will be given in conjunction with the accompanying drawings: Embodiment 1

[0027] An electrolytic cell circulating liquid supply device includes an electrolytic cell 4, anode and cathode plates 6, and a circulating pipeline 7. The anode and cathode plates 6 are evenly distributed inside the electrolytic cell 4, and it includes a liquid inlet pipe 1, a liquid inlet tank 2, small holes 3, and a hook 5. The small holes 3 are opened at the upper end of one side of the liquid inlet tank 2. The liquid inlet tank 2 is located inside the liquid inlet end of the electrolytic cell 4 and is connected to the cell wall of the electrolytic cell 4 through the hook 5 and the small holes 3. The liquid inlet tank 2 is provided with a liquid outlet 201 and a liquid inlet 202. The liquid inlet 202 is opened at the upper end of the liquid inlet tank 2. The liquid outlet 201 is opened at one side of the lower end of the liquid inlet tank 2. One end of the liquid inlet pipe 1 is connected to the circulating pipeline 7, and the other end extends into the interior of the liquid inlet tank 2 through the liquid inlet 202.

[0028] The working principle of this embodiment is as follows:

[0029] During use, pass the hook through the small hole of the liquid inlet tank. The liquid inlet tank is suspended at the liquid inlet end of the electrolyte circulation through the hook. Insert the liquid inlet pipe into the electrolyte in the liquid inlet tank through the liquid inlet of the liquid inlet tank. The outlet of the liquid inlet pipe is below the liquid level of the electrolyte in the liquid inlet tank. After the electrolytic cell is powered on and starts to work, an electric field is formed between the anode and cathode of the anode and cathode plates in the electrolytic cell, and an electrolysis reaction occurs on the metal. During the electrolysis process, impurities and contaminants fall off from the anode in the form of anode mud and precipitate at the bottom of the electrolytic cell. The electrolyte flows out from above the liquid outlet end of the electrolytic cell and enters the circulating pipeline. The electrolyte is driven to circulate in the circulating pipeline by a circulating pump. The circulated electrolyte enters the liquid inlet tank through the liquid inlet pipe, increasing the cross-sectional area of the electrolyte outlet, which can effectively slow down the flow rate of the electrolyte. The electrolyte with a reduced flow rate flows out through the liquid outlet on one side of the liquid inlet tank, avoiding the phenomenon that the flowing electrolyte drives the anode mud deposited at the bottom of the electrolytic cell to roll, affecting the purity of the metal, and forming mechanical inclusions that affect the quality of the cathode product. After the electrolyte enters the liquid inlet tank, the air inside is discharged from the liquid inlet at the upper end into the liquid inlet tank without contacting the anode and cathode plates of the electrolytic cell, effectively avoiding the phenomenon of holes forming on the surface of the cathode plate product. Embodiment 2

[0030] The difference from Embodiment 1 is that the liquid outlet 201 on one side of the lower end of the liquid inlet tank 2 is 300 mm away from the bottom of the electrolytic cell 4. The outlet end of the liquid inlet pipe 1 is provided with a tee 101. The outlet position of the tee 101 is 7 mm lower than the normal production liquid level of the electrolytic cell 4. The hook 5 is in a "Ji" shape. The liquid inlet tank 2 is suspended at the cell wall of the electrolytic cell 4 through the small hole 3 and the "Ji"-shaped hook 5. The material of the liquid inlet tank 2 is fiberglass or stainless steel.

[0031] The liquid inlet tank 2 is hung on the side wall of the electrolytic cell 4 through the "Ji"-shaped hook 5 passing through the small hole 3, which is convenient for disassembly, replacement and maintenance as a whole. The electrolyte is shunted by the three-way pipe 101 of the liquid inlet pipe 1 and then flows into the liquid inlet tank 2. When the electrolyte flows out of the three-way pipe 101, the plates on both sides of the liquid inlet tank 2 block the electrolyte to slow down the flow rate of the electrolyte. The outlet of the liquid inlet pipe 1 is located at a position 7 mm below the liquid level of the electrolyte in the liquid inlet tank 2 to avoid the phenomenon of electrolyte splashing caused by the impact of the electrolyte on the liquid surface when the electrolyte flows out of the liquid inlet pipe 1. After the electrolyte enters the liquid inlet tank 2, it flows out through the liquid outlet 201 on one side of the liquid inlet tank 2 and 300 mm away from the bottom of the electrolytic cell 4, so as to avoid disturbing the anode mud deposited at the bottom when the electrolyte enters the electrolytic cell 4, resulting in the floating of anode mud in the electrolyte and interfering with the quality of the cathode product. The liquid inlet tank 2 made of fiberglass or stainless steel can avoid being corroded and damaged by the electrolyte in the electrolytic cell 4.

[0032] The working principle of this embodiment is the same as that of Embodiment 1.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electrolytic cell circulating liquid supply device, comprising an electrolytic cell (4), anode and cathode plates (6) and a circulating pipeline (7), wherein the anode and cathode plates (6) are evenly distributed inside the electrolytic cell (4), and is characterized in that: It includes a liquid inlet pipe (1), a liquid inlet tank (2), small holes (3) and hooks (5); the small holes (3) are opened at the upper end of one side of the liquid inlet tank (2); the liquid inlet tank (2) is located inside the liquid inlet end of the electrolytic cell (4) and is connected to the cell wall of the electrolytic cell (4) through the hooks (5) and the small holes (3); the liquid inlet tank (2) is provided with a liquid outlet (201) and a liquid inlet (202); the liquid inlet (202) is opened at the upper end of the liquid inlet tank (2); the liquid outlet (201) is opened at one side of the lower end of the liquid inlet tank (2); one end of the liquid inlet pipe (1) is connected to the circulation pipeline (7), and the other end extends into the interior of the liquid inlet tank (2) through the liquid inlet (202).

2. The electrolytic cell circulating liquid supply device according to claim 1, characterized in that: A tee pipe (101) is provided at the liquid outlet end of the liquid inlet pipe (1); the outlet position of the tee pipe (101) is lower than the normal production liquid level of the electrolytic cell (4), and the range is 5 - 10 mm.

3. The electrolytic cell circulating liquid supply device according to claim 1, characterized in that: The liquid outlet (201) on one side of the lower end of the liquid inlet tank (2) is 200 - 500 mm away from the bottom of the electrolytic cell (4).

4. An electrolytic cell circulating liquid supply device according to claim 1, characterized in that: The hook (5) is in a "Ji” shape; the liquid inlet tank (2) is suspended at the cell wall of the electrolytic cell (4) through the small holes (3) and the "Ji”-shaped hook (5).

5. The electrolytic cell circulating liquid supply device according to claim 1, characterized in that: The material of the liquid inlet tank (2) is fiberglass reinforced plastic or stainless steel.

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