An electrolysis or electrolysis device and an installation method thereof

Abstract

The present invention provides an electrolysis or electrolysis device and an installation method of the device, belonging to the technical field of electrolysis and electrolysis equipment for nonferrous metal hydrometallurgy. The electrolysis or electrolysis device realizes that under the same electrolyte feed pressure, the electrolyte has a higher outlet lift at the liquid feed nozzle of the main liquid feed device, and a lower outlet lift at the liquid feed nozzle of the auxiliary liquid feed device, so that the main liquid feed device has a greater pulling speed for metal ions in the electrolyte than the auxiliary liquid feed device, so as to facilitate the sedimentation of anode mud and inhibit the generation of floating anode mud, and effectively weaken the anode passivation phenomenon on the surface of the anode plate; at the same time, the electrolyte entering the tank body through the auxiliary liquid feed device can effectively supplement the kinetic energy and heat required for the circulation of the solution in the tank body, which is helpful to maintain the temperature balance of the solution in the tank body, avoid the generation of local supercooling or overheating, and effectively weaken the concentration polarization phenomenon on the surface of the cathode plate.

Description

Technical Field

[0001] The invention belongs to the technical field of electrolysis and electrolysis equipment for nonferrous metal hydrometallurgy, and specifically relates to an electrolysis or electrolysis device and an installation method of the device. Background Art

[0002] In the technical field of electrolysis and electrowinning in hydrometallurgy, how to increase the contact opportunities between non-ferrous metal cations in the electrolyte and the cathode, accelerate the diffusion of cations around the anode, and reduce concentration polarization and anode passivation in the copper electrolysis process has always been a hot topic and difficulty in technical research.

[0003] At present, the circulation mode of solution in conventional electrolytic cells or electrolytic cells is mainly divided into upper inlet and lower outlet or lower inlet and upper outlet. By controlling the solution to enter the cell from one end, it is easy to cause uneven diffusion of the solution, or by concentrating the liquid inlet from the upper or lower part of the cell, it is easy to cause the flow direction of the solution in the cell to be chaotic, which is not conducive to a substantial increase in current density and the sedimentation of anode mud. In recent years, the bidirectional parallel flow electrolysis technology developed and applied, such as: Patent No. 201020128861.5, a parallel bidirectional rotating flow electrolysis or electrolytic device of solution, which adopts the method of liquid inlet from the upper part of both sides of the cell, and increases the circulation volume of the solution to greatly increase the cathode current density and improve the sedimentation effect of the anode mud; however, this method is easy to cause the solution flow direction to be staggered and cause the solution to mix, and because the newly entered upper solution is hot liquid, it is not conducive to the solution sinking, and it is necessary to add a liquid guide groove at the overflow port, thereby increasing the solution flow resistance, which is not conducive to the diffusion efficiency of the solution, and it is easy to cause concentration polarization on the cathode plate surface and anode passivation on the anode plate surface. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an electrolysis or electrolysis device to achieve the effect of circulating flow of electrolyte in the tank, making the solution distribution more uniform, reducing the temperature gradient of the electrolyte in the tank, and effectively weakening the concentration polarization on the surface of the cathode plate and the anode passivation on the surface of the anode plate.

[0005] The invention provides the following technical solution: an electrolysis or electrolysis device, comprising:

[0006] A tank body, wherein an overflow tank is provided at the upper end of the tank body;

[0007] A plurality of anode plates are suspended in the inner cavity of the tank;

[0008] A plurality of cathode plates are suspended in the inner cavity of the tank body, and the anode plates are parallel to the cathode plates and are arranged at equal intervals; preferably, the electrolysis or electrolysis device also includes a main liquid supply device and an auxiliary liquid supply device, the main liquid supply device and the auxiliary liquid supply device form a preset height difference, the main liquid supply device and the auxiliary liquid supply device are respectively arranged on the inner wall of the tank body and are arranged opposite to each other; the liquid supply port of the main liquid supply device located at the upper part of the inner wall of the tank body is lower than the production liquid level line of the tank body, and the height difference between the liquid supply port of the auxiliary liquid supply device located at the lower part of the side wall of the tank body and the lower end of the anode plate or the cathode plate is within a preset range; the electrolyte is sprayed into the tank body through the main liquid supply device and the auxiliary liquid supply device respectively along the arrangement direction parallel to the anode plate or the cathode plate, so that the solution in the tank body forms an internal circulation flow, and at the same time, the excess electrolyte in the tank body is discharged through the overflow tank.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: under the same electrolyte feed pressure, the electrolyte outlet head at the feed nozzle of the main feed device is higher, while the electrolyte outlet head at the feed nozzle of the auxiliary feed device is lower, so that the main feed device has a greater pulling speed for metal ions in the electrolyte than the auxiliary feed device, thereby achieving the purpose of facilitating the sedimentation of anode mud and inhibiting the generation of floating anode mud, and effectively reducing the anode passivation phenomenon on the surface of the anode plate; at the same time, the electrolyte entering the tank body through the auxiliary feed device can effectively supplement the kinetic energy and heat required for the circulation of the solution in the tank body, which helps to maintain the temperature balance of the solution in the tank body, avoid local overcooling or overheating, and effectively reduce the concentration polarization phenomenon on the surface of the cathode plate, thereby further improving the quality of the cathode product.

[0010] Preferably, the bottom surface of the inner cavity of the tank body is an inclined structure, and the bottom of the cavity located on the same side of the main liquid supply device is inclined and sloped toward the bottom of the cavity located on the same side of the auxiliary liquid supply device to form the inclined structure.

[0011] Preferably, the angle between the inclined surface structure and the horizontal plane is 2° to 5°.

[0012] Preferably, an anode mud port and a supernatant liquid port are provided at the bottom of the tank body; the anode mud port is located at a low position at the bottom of the tank body, and the supernatant liquid port is located at a high position at the bottom of the tank body.

[0013] Preferably, the preset range is -150 mm to 150 mm.

[0014] Preferably, the main liquid supply device and the auxiliary liquid supply device both include a liquid supply main pipe, a flow regulating valve, a liquid guide pipe and a plurality of liquid supply nozzles; the liquid supply main pipe is arranged on the inner wall of the tank body, and the two ends of the liquid guide pipe are respectively connected to the liquid supply main pipe and the flow regulating valve; the plurality of liquid supply nozzles are arranged on the liquid supply main pipe, and are all arranged at equal intervals on one side of the liquid supply main pipe away from the inner wall of the tank body.

[0015] Preferably, the arrangement direction of the liquid supply main pipe is perpendicular to the direction of the anode plate or the cathode plate, and the spraying directions of the plurality of liquid supply nozzles located on the same liquid supply main pipe are parallel to the direction of the anode plate or the cathode plate.

[0016] Preferably, a preset height difference between the liquid supply main pipe of the main liquid supply device and the liquid supply main pipe of the auxiliary liquid supply device is 800 mm to 1200 mm.

[0017] Preferably, the cross-section of the liquid supply main pipe is a square structure.

[0018] The present invention also provides a method for installing an electrolysis or electrolysis device, wherein the electrolysis or electrolysis device is the electrolysis or electrolysis device described above; the installation method comprises the following steps:

[0019] Step 1, a plurality of the liquid supply nozzles are evenly distributed on the side walls of the two liquid supply main pipes, and the liquid supply nozzles are arranged linearly, wherein the liquid supply nozzles are connected to the liquid supply main pipes by threaded connection or embedded connection;

[0020] Step 2, fix the two liquid supply pipes equipped with the liquid supply nozzles on the two opposite inner side walls of the tank body by means of embedded bolts or embedded pipe brackets, and the two liquid supply pipes are arranged in parallel with each other with a height difference of 800mm to 1200mm; wherein the liquid supply pipe at the higher position is the liquid supply pipe of the main liquid supply device, and the liquid supply pipe at the lower position is the liquid supply pipe of the auxiliary liquid supply device; and the nozzle opening of the liquid supply nozzle of the main liquid supply device is located at a position within a range of 20mm to 100mm below the production liquid level line of the tank body;

[0021] Step 3, connecting the liquid inlet ends of the two liquid supply main pipes to the corresponding flow regulating valves through the liquid guide pipes, so as to adjust the flow rate and flow velocity of the electrolyte and supply it to the main liquid supply device and the auxiliary liquid supply device; wherein the liquid supply main pipe and the liquid guide pipe are connected by flanges, and the flow regulating valve is fixedly supported by the tank body;

[0022] Step 4, the set formed by the anode plates and the cathode plates arranged at equal intervals is supported by a pad placed at the slot end of the tank body, so that the anode plates and the cathode plates are suspended in the inner cavity of the tank body; and the height difference between the nozzle opening of the liquid supply nozzle of the auxiliary liquid supply device and the bottom edge of the anode plate or the cathode plate is controlled to be within the range of -150mm to 150mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 A cross-sectional view of an electrolysis or electrolysis device (without a flow control valve and a liquid guide tube) provided in an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the main liquid supply device and the tank installation position (when the electrode plate and the auxiliary liquid supply device are not installed) provided in an embodiment of the present invention;

[0026] Figure 3 for Figure 2 A partial enlarged schematic diagram of the symbol A;

[0027] Figure 4 A top view of an electrolysis or electrolysis device (without a flow regulating valve, a liquid guide tube and an electrode plate) provided in an embodiment of the present invention.

[0028] Figure 5 for Figure 2 A partial enlarged schematic diagram of the mark B;

[0029] Figure 6 A schematic diagram of the auxiliary liquid supply device and the installation position of the tank body (when the electrode plate and the main liquid supply device are not installed) provided in an embodiment of the present invention;

[0030] Description of reference numerals:

[0031] 10-tank body, 11-overflow tank, 111-flow guide pipe, 12-backing plate, 13-inclined structure, 14-anode mud port, 15-supernatant port;

[0032] 20- anode plate;

[0033] 30- cathode plate;

[0034] 40-main liquid supply device, 41-liquid supply main pipe, 411-inspection port, 42-flow regulating valve, 43-liquid guide pipe, 44-liquid supply nozzle;

[0035] 50-Auxiliary liquid supply device. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0037] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0040] In one embodiment of the present invention, Figure 1As shown, an electrolysis or electrowinning device comprises a cell body 10 and a plurality of anode plates 20 and a plurality of cathode plates 30 suspended in the cell body 10. Further, the anode plate 20 and the cathode plate 30 are spaced parallel and equidistantly arranged. Wherein, in order to achieve more efficient electrolysis of the electrolyte, the number of plates of the anode plate 20 and the cathode plate 30 differs by one, that is, the anode plate 20 has one more plate than the cathode plate 30. Of course, in other embodiments, the anode plate 20 may have one less plate than the cathode plate 30. Specifically, a pad 12 is provided at the notch end of the cell body 10, and the set formed by the anode plate 20 and the cathode plate 30 arranged equidistantly is supported by the pad 12 placed at the notch end of the cell body 10, so that the anode plate 20 and the cathode plate 30 are spaced and suspended in the inner cavity of the cell body 10. Preferably, the anode plate 20 adopts a copper anode plate, and the spacing between the anode plate 20 and the cathode plate 30 is 100 mm. Of course, the anode plate 20 may also be an insoluble lead anode plate, etc., and the distance between the anode plate 20 and the cathode plate 30 is controlled to be 80 mm to 130 mm.

[0041] like Figure 2 and Figure 3 As shown, an overflow groove 11 is provided at the upper end of the tank body 10, the pad 12 covers the upper groove of the overflow groove 11, and a guide pipe 111 is provided at the bottom of the overflow groove 11 so that the production liquid level line in the tank body 10 is always flush with the bottom of the overflow groove 11.

[0042] like Figure 1 and Figure 4As shown, the electrolysis or electrolysis device further includes a main liquid supply device 40 and an auxiliary liquid supply device 50, wherein the main liquid supply device 40 and the auxiliary liquid supply device 50 form a preset height difference, specifically, the preset height difference is in the range of 800mm to 1200mm. The main liquid supply device 40 and the auxiliary liquid supply device 50 are respectively arranged on the inner side wall of the tank body 10 and arranged oppositely, the liquid supply port of the main liquid supply device 40 located at the upper part of the inner side wall of the tank body 10 is lower than the production liquid level line of the tank body 10, and the height difference between the liquid supply port of the auxiliary liquid supply device 50 located at the lower part of the side wall of the tank body 10 and the lower end of the anode plate 20 or the cathode plate 30 is within a preset range. In specific practice, the electrolyte is sprayed into the cell body 10 through the main liquid supply device 40 and the auxiliary liquid supply device 50 along the arrangement direction parallel to the anode plate 20 or the cathode plate 30, so that the solution in the cell body 10 forms an internal circulation flow. At the same time, the excess electrolyte in the cell body 10 is discharged through the overflow tank 11. The operating principle of the electrolysis or electrolysis device is as follows: under the same electrolyte feed pressure, the electrolyte has a higher outlet lift at the feed nozzle of the main feed device 40, while it has a lower outlet lift at the feed nozzle of the auxiliary feed device 50, so that the main feed device 40 has a greater pulling speed for metal ions in the electrolyte than the auxiliary feed device 50, thereby facilitating the sedimentation of anode mud and inhibiting the generation of floating anode mud, and effectively reducing the anode passivation phenomenon on the surface of the anode plate; at the same time, the electrolyte entering the tank body 10 through the auxiliary feed device 50 can effectively supplement the kinetic energy and heat required for the circulation of the solution in the tank body 10, which helps to maintain the temperature balance of the solution in the tank body 10, avoid local overcooling or overheating, and effectively reduce the concentration polarization phenomenon on the surface of the cathode plate.

[0043] Furthermore, the main liquid supply device 40 and the auxiliary liquid supply device 50 are independent of each other, which is also convenient for inspection and maintenance, providing technical and equipment guarantees for achieving high current density electrolytic production. In addition, the main liquid supply device 40 and the auxiliary liquid supply device 50 or one of them can be applied to the liquid supply production of the electrolytic cell or electrolytic cell, so that the electrolyte in the cell body forms an internal circulation flow effect.

[0044] like Figure 5 and Figure 6As shown, the main liquid supply device 40 and the auxiliary liquid supply device 50 both include a liquid supply main pipe 41, a flow regulating valve 42, a liquid guide pipe 43 and a plurality of liquid supply nozzles 44. Specifically, the liquid supply main pipe 41 is arranged on the inner wall of the tank body 10, and the two ends of the liquid guide pipe 43 are respectively connected to the liquid supply main pipe 41 and the flow regulating valve 42. Among them, the flow regulating valve 42 is used to adjust and balance the liquid supply flow rate and liquid supply water of the main liquid supply device 40 and the auxiliary liquid supply device 50 to cooperate with the electrolysis or electrolysis reaction in the tank body 10. Preferably, the liquid supply flow rate of the electrolyte is controlled at 20L / min~100L / min, the liquid supply flow rate is 0.3m / s~1.25m / s, and the inner diameter of the liquid supply nozzle 44 is selected to be φ40mm~φ80mm. In specific practice, the liquid supply nozzle 44 is made of stainless steel, and in order to facilitate the threaded connection between the liquid supply nozzle 44 and the liquid supply main pipe 41, the cross-section of the liquid supply main pipe 41 is a square structure; of course, in other embodiments, the liquid supply nozzle 44 can also be made of PVC plastic material, and the liquid supply nozzle 44 and the liquid supply main pipe 41 also adopt an embedded connection method.

[0045] Furthermore, a plurality of the liquid supply nozzles 44 are arranged on the liquid supply main pipe 41, and are all arranged at equal intervals on one side of the liquid supply main pipe 41 away from the inner wall of the tank body 10. Specifically, the arrangement direction of the liquid supply main pipe 41 is perpendicular to the direction of the anode plate 20 or the cathode plate 30, and the spraying directions of the plurality of liquid supply nozzles 44 located on the same liquid supply main pipe 41 are parallel to the direction of the anode plate 20 or the cathode plate 30. In specific practice, the electrolyte sprayed by the liquid supply nozzle 44 is in the space between the adjacent anode plate 20 and the cathode plate 30, which is beneficial to the electrolysis or electrodeposition reaction in the tank body 10. In addition, an inspection port 411 is provided at one end of the liquid supply main pipe 41 away from the liquid guide tube 43 to facilitate the inspection and maintenance of the liquid supply main pipe 41.

[0046] like Figure 1 As shown, the liquid supply port of the main liquid supply device 40 located at the upper part of the inner side wall of the tank body 10 is lower than the production liquid level line of the tank body 10. Specifically, the height difference between the electrode liquid sprayed by the liquid supply nozzle 44 of the main liquid supply device 40 and the production liquid level line of the tank body 10 is controlled within the range of 20mm to 100mm. In addition, the height difference between the liquid supply port of the auxiliary liquid supply device 50 located at the lower part of the side wall of the tank body 10 and the bottom edge of the anode plate 20 or the cathode plate 30 is controlled within the range of -150mm to 150mm.

[0047] like Figure 1As shown, the bottom surface of the inner cavity of the trough body 10 is an inclined structure 13, and the bottom of the cavity located on the same side of the main liquid supply device 40 is inclined toward the bottom of the cavity located on the same side of the auxiliary liquid supply device 50 to form the inclined structure 13; preferably, the angle between the inclined structure 13 and the horizontal plane is controlled within the range of 2° to 5°.

[0048] Furthermore, an anode mud port 14 and a supernatant port 15 are provided at the bottom of the tank body 10. Specifically, the anode mud port 14 is located at a low position at the bottom of the tank body 10, and the supernatant port 15 is located at a high position at the bottom of the tank body 10, so that after electrolytic deposition, the electrolyte containing less anode mud in the tank body 10 is first discharged from the supernatant port 15, and then the electrolyte containing more anode mud is discharged from the anode mud port 14.

[0049] The electrolysis or electrolysis device provided by the present invention can not only effectively adjust the liquid supply flow rate in the cell body, so that the solution distribution is more uniform, and effectively improve the concentration polarization on the surface of the cathode plate and the anode passivation on the surface of the anode plate, but also the main liquid supply device and the auxiliary liquid supply device are independent of each other, which is also convenient for the inspection and maintenance of both, providing technical and equipment guarantees for realizing high current density electrolysis production. In addition, the main liquid supply device and the auxiliary liquid supply device or one of them can be applied to the liquid supply production of the electrolytic cell or electrolysis cell, so that the electrolyte in the cell body forms an internal circulation flow effect, which can effectively improve the internal circulation of the solution in the cell body, reduce the temperature gradient of the electrolyte, improve the quality of the cathode product and improve the recovery of precious metals in the anode mud.

[0050] In another embodiment of the present invention, a method for installing the above electrolysis or electrolysis device is also provided, which comprises the following steps:

[0051] Step 1, a plurality of the liquid supply nozzles 44 are evenly distributed on the side walls of the two liquid supply main pipes 41, and the liquid supply nozzles 44 are arranged linearly, wherein the liquid supply nozzles 44 are connected to the liquid supply main pipes 41 by threaded connection or embedded connection;

[0052] Step 2, fix the two liquid supply pipes 41 equipped with the liquid supply nozzles 44 on the two opposite inner side walls of the tank body 10 respectively by means of embedded bolts or embedded pipe brackets, and the two liquid supply pipes 41 are arranged in parallel with each other with a height difference of 800mm to 1200mm; wherein the liquid supply pipe at the higher position is the liquid supply pipe of the main liquid supply device 40, and the liquid supply pipe at the lower position is the liquid supply pipe of the auxiliary liquid supply device 50; and the nozzle opening of the liquid supply nozzle 44 of the main liquid supply device 40 is located at a position within a range of 20mm to 100mm below the production liquid level line of the tank body 10;

[0053] Step 3, connecting the liquid inlet ends of the two liquid supply main pipes 41 to the corresponding flow regulating valves 42 through the liquid guide pipes 43, so as to adjust the flow rate and flow velocity of the electrolyte and supply it to the main liquid supply device 40 and the auxiliary liquid supply device 50; wherein the liquid supply main pipe 41 and the liquid guide pipe 43 are connected by flanges, and the flow regulating valve 42 is fixedly supported by the tank body 10;

[0054] Step 4: The set formed by the anode plate 20 and the cathode plate 30 arranged at equal intervals is supported by the pad 12 placed at the slot end of the tank body 10, so that the anode plate 20 and the cathode plate 30 are both suspended in the inner cavity of the tank body 10; and the height difference between the nozzle opening of the liquid supply nozzle of the auxiliary liquid supply device 50 and the anode plate 20 or the cathode plate 30 is controlled to be within the range of -150mm to 150mm.

[0055] The above description is only a preferred embodiment of the present invention and is 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 electrolysis or electrowinning device comprising A tank body, wherein an overflow tank is provided at the upper end of the tank body; A plurality of anode plates are suspended in the inner cavity of the tank; A plurality of cathode plates are suspended in the inner cavity of the tank body, and the anode plates are parallel to the cathode plates and are arranged at equal intervals; characterized in that: It also includes a main liquid supply device and an auxiliary liquid supply device, wherein the main liquid supply device and the auxiliary liquid supply device form a preset height difference, and the main liquid supply device and the auxiliary liquid supply device are respectively arranged on the inner wall of the tank body and are arranged opposite to each other; the liquid supply port of the main liquid supply device located at the upper part of the inner wall of the tank body is lower than the production liquid level line of the tank body, and the height difference between the liquid supply port of the auxiliary liquid supply device located at the lower part of the side wall of the tank body and the lower end of the anode plate or the cathode plate is within a preset range; the electrolyte is respectively sprayed into the tank body through the main liquid supply device and the auxiliary liquid supply device along the arrangement direction parallel to the anode plate or the cathode plate, so that the solution in the tank body forms an internal circulation flow, and at the same time, the excess electrolyte in the tank body is discharged through the overflow tank; The bottom surface of the cavity of the tank body is an inclined structure, and the cavity bottom located on the same side of the main liquid supply device is inclined toward the cavity bottom located on the same side of the auxiliary liquid supply device to form the inclined structure; The angle between the inclined surface structure and the horizontal plane is 2° to 5°; The bottom of the tank body is provided with an anode mud port and a supernatant liquid port; the anode mud port is located at a low position at the bottom of the tank body, and the supernatant liquid port is located at a high position at the bottom of the tank body.

2. The electrolysis or electrowinning device according to claim 1, characterized in that: The main liquid supply device and the auxiliary liquid supply device both include a liquid supply main pipe, a flow regulating valve, a liquid guide pipe and a plurality of liquid supply nozzles; the liquid supply main pipe is arranged on the inner wall of the tank body, and the two ends of the liquid guide pipe are respectively connected to the liquid supply main pipe and the flow regulating valve; the plurality of liquid supply nozzles are arranged on the liquid supply main pipe, and are all arranged at equal intervals on one side of the liquid supply main pipe away from the inner wall of the tank body.

3. The electrolysis or electrowinning device according to claim 2, characterized in that: The arrangement direction of the liquid supply main pipe is perpendicular to the direction of the anode plate or the cathode plate, and the spraying directions of the plurality of liquid supply nozzles located on the same liquid supply main pipe are parallel to the direction of the anode plate or the cathode plate.

4. The electrolysis or electrowinning device according to claim 2, characterized in that: A preset height difference between the liquid supply main pipe of the main liquid supply device and the liquid supply main pipe of the auxiliary liquid supply device is 800 mm to 1200 mm.

5. The electrolysis or electrowinning device according to claim 2, characterized in that: The cross section of the liquid supply main pipe is a square structure.

6. A method for installing an electrolysis or electrodeposition device, characterized in that: The electrolysis or electrolysis device is an electrolysis or electrolysis device as claimed in any one of claims 2 to 5; the installation method comprises the following steps: Step 1, a plurality of the liquid supply nozzles are evenly distributed on the side walls of the two liquid supply main pipes, and the liquid supply nozzles are arranged linearly, wherein the liquid supply nozzles are connected to the liquid supply main pipes by threaded connection or embedded connection; Step 2, fix the two liquid supply pipes equipped with the liquid supply nozzles on the two opposite inner side walls of the tank body by means of embedded bolts or embedded pipe brackets, and the two liquid supply pipes are arranged in parallel with each other with a height difference of 800mm to 1200mm; wherein the liquid supply pipe at the higher position is the liquid supply pipe of the main liquid supply device, and the liquid supply pipe at the lower position is the liquid supply pipe of the auxiliary liquid supply device; and the nozzle opening of the liquid supply nozzle of the main liquid supply device is located at a position within a range of 20mm to 100mm below the production liquid level line of the tank body; Step 3, connecting the liquid inlet ends of the two liquid supply main pipes to the corresponding flow regulating valves through the liquid guide pipes, so as to adjust the flow rate and flow velocity of the electrolyte and supply it to the main liquid supply device and the auxiliary liquid supply device; wherein the liquid supply main pipe and the liquid guide pipe are connected by flanges, and the flow regulating valve is fixedly supported by the tank body; Step 4: The set formed by the anode plates and the cathode plates arranged at equal intervals is supported by a pad placed at the slot end of the tank body, so that the anode plates and the cathode plates are both suspended in the inner cavity of the tank body; and the height difference between the nozzle opening of the liquid supply nozzle of the auxiliary liquid supply device and the bottom edge of the anode plate or the cathode plate is controlled to be within a preset range.

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