Electrolytic device for noble metal extraction

Abstract

The application relates to the technical field of electrolysis devices, and provides an electrolysis device for noble metal extraction, which comprises a box body; in the application, an adjusting assembly and a replacement assembly are arranged; the bidirectional screw rod in the adjusting assembly cooperates with the sliding block and the fixing seat, the distance between an anode plate and a cathode plate can be flexibly adjusted by rotating a handle, the extraction requirements of different concentrations of electrolyte and different types of noble metal are adapted, the electrolytic current density is ensured to be in an optimal state, the noble metal extraction efficiency and purity are effectively improved, and the electric energy loss is reduced; the replacement assembly is elastically inserted with the conductive pin and the busbar of the groove body, and the semicircular plate and the semicircular plate are clamped and matched, the electrode is quickly disassembled and assembled, the device does not need to be integrally disassembled, the downtime maintenance time is greatly shortened, the manual maintenance cost is reduced, the limiting table of the conductive pin can avoid excessive insertion damage to the components, and the service life of the device is prolonged.

Description

Technical Field

[0001] This invention relates to the field of electrolysis equipment technology, and in particular to an electrolysis device for extracting precious metals. Background Technology

[0002] With the increasing amount of secondary resources such as electronic waste and spent catalysts, recovering precious metals such as gold, silver, platinum, and palladium from them has become an important way to recycle resources. Electrolysis technology is widely used in the field of precious metal recycling due to its high extraction efficiency and good controllability. However, existing electrolysis devices still have many limitations when processing complex materials.

[0003] In existing technologies, electrolytic devices for precious metal extraction suffer from two major drawbacks: unreasonable electrode structure design and difficulties in replacement and maintenance. These drawbacks lead to numerous disadvantages. The anode and cathode electrodes are often fixedly installed with an adjustable spacing, making them unsuitable for extracting different concentrations of electrolyte and various types of precious metals. Inappropriate spacing increases current conduction losses and causes uneven current density, reducing the deposition rate and extraction purity of precious metals, while also consuming additional energy, increasing production energy consumption and costs. Furthermore, electrode replacement and maintenance are difficult, requiring complete disassembly of the device. This cumbersome operation and prolonged downtime significantly reduce production efficiency, hindering large-scale continuous production, increasing labor maintenance costs, and potentially damaging device components due to frequent disassembly, shortening equipment lifespan and further burdening production operations. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art where the anode and cathode are mostly fixedly installed, the spacing is not adjustable, and the electrode replacement and maintenance are difficult, resulting in long downtime.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an electrolytic device for extracting precious metals, comprising a housing, and further comprising: An electrolytic cylinder is disposed on one side of the inner cavity of the box. The top plate is rotatably mounted on the top of the electrolysis cylinder; A chute is formed at the bottom of the top plate; An anode plate is disposed on one side of the inner cavity of the electrolytic cylinder; A cathode plate is disposed on the other side of the inner cavity of the electrolysis cylinder, and the anode plate and the cathode plate are coaxially located at the bottom of the chute; Four tank busbars are rectangularly distributed on both sides of the top of the anode plate and the cathode plate; Four first mounting bases are respectively installed at the bottom of the four busbars of the tank body; Four second mounting bases are respectively installed on the top of the anode plate and the cathode plate, and the four first mounting bases are all in contact with the second mounting bases; The adjustment component is located inside the slide groove; Several replacement components are respectively disposed on the four sides between the four second mounting bases and the first mounting base, and the several replacement components are arranged in a rectangular distribution.

[0006] In a preferred embodiment, the adjustment component includes: Two sliders are symmetrically slidably installed inside the groove; Two mounting bases are detachably mounted on the bottom of the two sliders, with the bottom of one mounting base connected to the top of the anode plate and the bottom of the other mounting base connected to the top of the cathode plate. A bidirectional lead screw is rotatably installed inside the slide groove. The bidirectional lead screw passes through the middle of the two sliders and one side of the top plate. The bidirectional lead screw is threadedly connected to the two sliders, and one end of the bidirectional lead screw is rotatably connected to one side of the top plate.

[0007] The technical effect of adopting the above-mentioned further solution is that, through the cooperation of the slider, the fixed seat and the bidirectional lead screw, the distance between the anode plate and the cathode plate can be adjusted synchronously and smoothly, which can be adapted to different electrolytes and precious metal extraction conditions, optimize the current density, and improve the electrolysis efficiency and purity.

[0008] In a preferred embodiment, the adjustment component further includes: A connecting plate is installed at one end of the bidirectional lead screw; A handle is installed on the top of one side of the connecting plate.

[0009] The technical advantages of adopting the above-mentioned further solution are: the addition of a connecting plate and a handle makes it easier for operators to manually and quickly adjust the electrode spacing, making the operation simple and labor-saving, requiring no special tools, and improving the ease of use of the device.

[0010] In a preferred embodiment, the replacement component includes: Four conductive pins are threadedly installed on both sides of the top of the anode plate and the cathode plate. The conductive pins are elastically inserted into the top of the four tank busbars. The four conductive pins are respectively connected to the inner side of the four second mounting bases. A fixing block is fixedly installed at the bottom of the first mounting base; A circular plate is installed at the bottom of the fixing block; A mounting slot is provided on the top of the second mounting base; Mounting plate, installed on the bottom wall of the mounting groove; Two semi-circular plates are symmetrically hinged to the top of the mounting plate, and the gap between the circular plate and the two semi-circular plates is adapted to each other; Two connecting blocks are respectively installed on one side of the two semi-arc plates; Two elastic elements are installed between the two connecting blocks and the mounting plate.

[0011] The technical advantages of adopting the above-mentioned further solution are: by forming a quick-connect and snap-fit ​​structure with conductive pins, circular plates, semi-arc plates and elastic elements, the electrodes can be quickly disassembled and replaced, reducing downtime, while ensuring reliable conductivity and extending the service life of components.

[0012] In a preferred embodiment, the electrolytic apparatus for precious metal extraction further includes: Two feed pipes are symmetrically installed on the top of the top plate, and the two feed pipes are connected to the interior of the electrolysis cylinder; The discharge pipe is installed at the bottom of the electrolysis cylinder, the discharge pipe passes through the bottom of the box body, and the discharge pipe is rotatably connected to the bottom of the box body; A valve is installed on the discharge pipe.

[0013] The technical advantages of adopting the above-mentioned further solution are: the symmetrical feed pipe, the bottom discharge pipe, and the valve work together to achieve uniform feeding and stable discharge of electrolyte, the structural layout is reasonable, and it is convenient for electrolyte circulation and subsequent cleaning and maintenance.

[0014] In a preferred embodiment, the electrolytic apparatus for precious metal extraction further includes: The first gear is installed on the outer surface of the bottom of the electrolysis cylinder; The second gear is disposed on one side of the first gear, and the second gear meshes with one side of the first gear; A support plate is installed on the top of the housing near the second gear; The motor is mounted on the top of the support plate, and the output end of the motor is connected to the middle of the second gear.

[0015] The technical effect of adopting the above-mentioned further solution is that the electric motor, in conjunction with gear transmission, drives the electrolytic cylinder to rotate, which causes uniform disturbance of the electrolyte, avoids concentration stratification, improves the uniformity of the electrolytic reaction, and enhances the quality of precious metal deposition.

[0016] In a preferred embodiment, the electrolytic apparatus for precious metal extraction further includes: A convex ring is installed at the bottom of the electrolysis cylinder; A convex groove is formed in the bottom wall of the inner cavity of the box, and the convex ring is rotatably engaged with the bottom wall of the inner cavity of the box.

[0017] The technical effect of adopting the above-mentioned further solution is that the convex ring and the convex groove rotate in a coordinated manner to form a limiting support for the electrolysis cylinder, making the rotation more stable and reliable, reducing shaking and wear, and improving the safety and life of the device operation.

[0018] In a preferred embodiment, the electrolytic apparatus for precious metal extraction further includes: The power supply is installed at the bottom of the inner cavity of the box, away from the electrolysis cylinder, and all four busbars of the tank are electrically connected to the power supply. The control panel is installed on one side of the top of the enclosure, and the control panel is electrically connected to the power supply via wires.

[0019] The technical advantages of adopting the above-mentioned further solutions are: stable electrical connection between the power supply and the tank busbar, convenient control with the control panel, stable power supply, intuitive operation, ensuring safe and controllable electrolysis process, and improving overall operational stability.

[0020] Compared with the prior art, the advantages and positive effects of the present invention are as follows: This invention, through the inclusion of an adjustment component and a replacement component, utilizes a bidirectional lead screw in the adjustment component, along with a slider and a fixed base, to flexibly adjust the distance between the anode and cathode plates by rotating a handle. This adapts to the extraction requirements of different electrolyte concentrations and various precious metals, ensuring that the electrolytic current density is at its optimal state, effectively improving the extraction efficiency and purity of precious metals while reducing energy consumption. The replacement component, through the elastic insertion of conductive pins into the tank busbar and the snap-fit ​​engagement of the circular and semi-arc plates, enables rapid assembly and disassembly of the electrodes without requiring a complete disassembly device. This significantly reduces downtime for maintenance and lowers labor costs. Furthermore, the limiting platform design of the conductive pins prevents over-insertion and damage to components, extending the device's lifespan. This invention specifically addresses the core shortcomings of existing electrolytic devices for precious metal extraction, namely, the inability to adjust the electrode spacing and the difficulty in replacement and maintenance.

[0021] This invention utilizes a convex ring that rotates with a convex groove on the bottom wall of the inner cavity of the electrolytic cylinder. This, combined with the transmission of a motor, a first gear, and a second gear, ensures smooth rotation of the electrolytic cylinder, resulting in uniform mixing of the electrolyte and preventing incomplete electrolysis caused by uneven local concentrations. This further enhances the extraction efficiency of precious metals. The top plate is rotatably connected and can be disassembled. The rational arrangement of the feed and discharge pipes facilitates electrolyte injection, waste discharge, and internal cleaning and maintenance. Furthermore, the coordinated design of the power supply and control panel allows for convenient start-up and shutdown control. The overall structure is suitable for large-scale industrial production, demonstrating strong practicality and high potential for widespread application. Attached Figure Description

[0022] Figure 1 This is a perspective view of an embodiment of this application; Figure 2 This is a perspective cross-sectional view of an embodiment of this application; Figure 3 This is a perspective view of an embodiment of this application; Figure 4 This is a perspective cross-sectional view of the electrolytic cylinder according to an embodiment of this application; Figure 5 This is a perspective cross-sectional view of the first mounting base and the second mounting base according to the embodiments of this application.

[0023] Legend: 1. Housing; 2. Control panel; 3. Top plate; 4. Discharge pipe; 5. Valve; 6. Electrolysis cylinder; 7. Power supply; 8. First gear; 9. Convex ring; 10. Second gear; 11. Support plate; 12. Motor; 13. Feed pipe; 14. Anode plate; 15. Connecting plate; 16. Handle; 17. Two-way lead screw; 18. Slider; 19. Fixing seat; 20. Tank busbar; 21. Second mounting seat; 22. Cathode plate; 23. First mounting seat; 24. Conductive pin; 25. Connecting block; 26. Elastic element; 27. Mounting plate; 28. Semi-arc plate; 29. ​​Circular plate; 30. Fixing block. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0025] Please see Figures 1-5 This embodiment provides an electrolytic device for extracting precious metals, the specific concept of which is as follows: An electrolytic device for extracting precious metals includes a housing 1, and the electrolytic device for extracting precious metals further includes an electrolytic cylinder 6 provided on one side of the inner cavity of the housing 1.

[0026] The top plate 3 is rotatably mounted on the top of the electrolysis cylinder 6, and the top plate 3 and the electrolysis cylinder 6 are detachably connected.

[0027] In addition, a groove is provided at the bottom of the top plate 3.

[0028] In addition, an anode plate 14 and a cathode plate 22 are arranged opposite each other inside the electrolysis cylinder 6. Both the anode plate 14 and the cathode plate 22 are located below the slide groove and are arranged coaxially.

[0029] Among them, four tank busbars 20 are respectively provided at the top four corners of the anode plate 14 and the cathode plate 22. The tank busbars 20 pass through the top plate 3 and are sealed to the top plate 3.

[0030] In addition, a first mounting base 23 is installed at the bottom of the tank busbar 20, and a second mounting base 21 is installed on the top of the anode plate 14 and the cathode plate 22 respectively. The first mounting base 23 and the second mounting base 21 fit together.

[0031] In addition, the chute is equipped with an adjustment component for adjusting the distance between the anode plate 14 and the cathode plate 22.

[0032] As some examples, in this embodiment, the adjustment assembly includes two sliders 18 symmetrically slidably disposed in a groove, with a fixing seat 19 detachably connected to the bottom of the slider 18, one fixing seat 19 being connected to the anode plate 14 and the other fixing seat 19 being connected to the cathode plate 22.

[0033] The slide groove is equipped with a bidirectional lead screw 17, which is threadedly engaged with two sliders 18. One end of the bidirectional lead screw 17 extends to the outside of the top plate 3 and is connected to a connecting plate 15. The connecting plate 15 is provided with a handle 16.

[0034] In this embodiment, rotating the handle 16 can drive the bidirectional lead screw 17 to rotate, causing the two sliders 18 to move synchronously towards or away from each other, thereby realizing flexible adjustment of the distance between the anode plate 14 and the cathode plate 22, overcoming the defects of fixed electrode spacing and poor adaptability in traditional methods. Example 2

[0035] Please see Figures 1-5 Based on Example 1, this example provides an electrolytic device for extracting precious metals, the specific concept of which is as follows: The electrolytic device for extracting precious metals also includes a replacement component between the first mounting base 23 and the second mounting base 21, which facilitates quick assembly and disassembly of the electrodes.

[0036] Two feed pipes 13 are symmetrically arranged on the top plate 3, and the feed pipes 13 are connected to the inside of the electrolysis cylinder 6.

[0037] In addition, the bottom of the electrolysis cylinder 6 is provided with a discharge pipe 4, which extends downward through the box body 1 and is equipped with a valve 5.

[0038] In addition, a first gear 8 is provided on the bottom outer wall of the electrolysis cylinder 6, and a support plate 11 is provided at the bottom of the inner cavity of the box body 1. A motor 12 is installed on the support plate 11, and a second gear 10 that meshes with the first gear 8 is connected to the output end of the motor 12.

[0039] The electrolysis cylinder 6 has a convex ring 9 at the bottom and a convex groove that rotates with the convex ring 9 on the bottom wall of the inner cavity of the box body 1, so that the electrolysis cylinder 6 can rotate smoothly under the drive of the motor 12 and improve the uniformity of electrolyte mixing.

[0040] In addition, a power supply 7 is provided on the side of the bottom of the inner cavity of the box 1 away from the electrolysis cylinder 6, and the busbars 20 of the tank are all electrically connected to the power supply 7.

[0041] In addition, a control panel 2 is provided on one side of the top of the housing 1. The control panel 2 is connected to the power supply 7 via wires and is used to control the operation of the device.

[0042] As some examples, in this embodiment, the replacement component includes four conductive pins 24 respectively installed on the top of the anode plate 14 and the cathode plate 22, and the conductive pins 24 are elastically connected to the tank busbar 20.

[0043] The conductive pin 24 has a limiting platform at its bottom to prevent damage to the busbar caused by excessive insertion.

[0044] It should be noted that, for easy identification, the anode pin is treated with red anodizing, while the cathode pin is treated with blue epoxy coating.

[0045] In addition, a circular plate 29 is connected to the bottom of the first mounting base 23 via a fixing block 30.

[0046] In addition, a mounting slot is provided on the top of the second mounting base 21.

[0047] The mounting slot contains a mounting plate 27.

[0048] In addition, two semi-circular plates 28 are symmetrically hinged on the mounting plate 27.

[0049] In addition, two connecting blocks 25 are installed on one side of the two semi-circular plates 28.

[0050] Among them, an elastic element 26 is provided between the two connecting blocks 25 and the mounting plate 27, and the circular plate 29 and the two semi-circular plates 28 form a snap-fit ​​engagement.

[0051] In this embodiment, when it is necessary to replace or maintain the electrode, the electrode can be quickly disassembled and assembled by the quick snap-fit ​​between the semi-arc plate 28 and the circular plate 29, without the need to disassemble the entire equipment, which significantly shortens the downtime for maintenance.

[0052] Working principle: In use, the precious metal electrolyte to be treated is first injected into the electrolytic cylinder 6 through two feed pipes 13 symmetrically arranged on the top plate 3. The power supply 7 is started through the control panel 2 on the top of the box 1. The power supply 7 supplies power to the four tank busbars 20. The current is transmitted to the anode plate 14 and the cathode plate 22 in sequence through the tank busbars 20 and the conductive pins 24, so that a stable electrolytic electric field is formed between the anode plate 14 and the cathode plate 22. The electrolyte undergoes an electrolytic reaction under the action of the electric field, and the precious metal ions are deposited on the surface of the cathode plate 22, realizing the extraction and separation of precious metals.

[0053] To meet the extraction needs of different concentrations and types of precious metals, the operator can rotate the handle 16 on the outer side of the top plate 3, which drives the bidirectional lead screw 17 to rotate through the connecting plate 15. This causes the two sliders 18 in the chute to slide symmetrically along the chute. The sliders 18, through the fixed seat 19, synchronously drive the anode plate 14 and the cathode plate 22 to move towards or away from each other, achieving precise adjustment of the electrode spacing, ensuring the optimal electrolysis current density, and improving electrolysis efficiency and precious metal purity. When the electrodes need maintenance or replacement, quick disassembly and assembly can be achieved using the replacement component. The conductive pin 24 is elastically connected to the tank busbar 20, and the bottom limiting platform... This design prevents damage caused by excessive insertion. The anode and cathode pins are treated with red anodizing and blue epoxy coating, respectively, to facilitate quick differentiation of positive and negative terminals. The circular plate 29 at the bottom of the first mounting base 23 and the semi-arc plate 28 hinged in the second mounting base 21 form a snap-fit ​​engagement under the action of the elastic element 26. Pulling the first mounting base 23 causes the fixing block 30 and the circular plate 29 to move outward, thereby causing the two elastic elements 26 to drive the semi-arc plate 28 to move outward, thus allowing the circular plate 29 to detach from the two semi-arc plates 28. This allows for quick assembly and disassembly without tools, significantly reducing downtime for maintenance.

[0054] During electrolysis, the motor 12 starts, and the output of the motor drives the second gear 10 to rotate. The second gear 10 meshes with the first gear 8 at the bottom of the electrolysis cylinder 6, driving the electrolysis cylinder 6 to rotate. The convex ring 9 at the bottom of the electrolysis cylinder 6 rotates and engages with the convex groove on the bottom wall of the inner cavity of the box body 1 to ensure smooth rotation. This allows the electrolyte to be evenly agitated within the electrolysis cylinder 6, avoiding localized uneven concentration and improving the uniformity and completeness of the electrolysis reaction. Furthermore, since the top plate 3 is rotatably connected to the top of the electrolysis cylinder 6, the busbar 20 of the tank body is stably electrically connected to the power supply 7. After electrolysis, the valve 5 on the discharge pipe 4 is opened to discharge the waste liquid after electrolysis. The precious metals deposited on the cathode plate 22 can be collected directly. The entire workflow does not require complicated operations and can complete electrolyte injection, electrolysis parameter adjustment, precious metal extraction, rapid electrode replacement, and waste liquid discharge. This effectively solves the problems of non-adjustable electrode spacing, difficult disassembly and maintenance, and low electrolysis efficiency of traditional devices. While ensuring the purity of the extracted material, it significantly improves the applicability, stability, and ease of maintenance of the device.

[0055] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An electrolytic device for extracting precious metals, comprising a housing (1), characterized in that, The electrolytic device for precious metal extraction also includes: An electrolytic cylinder (6) is disposed on one side of the inner cavity of the box body (1); The top plate (3) is rotatably mounted on the top of the electrolytic cylinder (6); A chute is provided at the bottom of the top plate (3); An anode plate (14) is disposed on one side of the inner cavity of the electrolytic cylinder (6); The cathode plate (22) is disposed on the other side of the inner cavity of the electrolytic cylinder (6), and the anode plate (14) is coaxial with the cathode plate (22) at the bottom of the chute; Four tank busbars (20) are rectangularly distributed on both sides of the top of the anode plate (14) and the cathode plate (22); Four first mounting bases (23) are respectively installed at the bottom of the four said channel busbars (20); Four second mounting bases (21) are respectively installed on the top of the anode plate (14) and the cathode plate (22), and four first mounting bases (23) are all in contact with the second mounting bases (21); The adjustment component is located inside the slide groove; Several replacement components are respectively disposed on the four sides between the four second mounting bases (21) and the first mounting base (23), and the several replacement components are arranged in a rectangular distribution.

2. The electrolytic device for extracting precious metals according to claim 1, characterized in that, The adjustment component includes: Two sliders (18) are symmetrically slidably installed inside the groove; Two mounting bases (19) are detachably mounted on the bottom of the two sliders (18), with the bottom of one mounting base (19) connected to the top of the anode plate (14) and the bottom of the other mounting base (19) connected to the top of the cathode plate (22). A bidirectional lead screw (17) is rotatably installed inside the slide groove. The bidirectional lead screw (17) passes through the middle of the two sliders (18) and one side of the top plate (3). The bidirectional lead screw (17) is threadedly connected to the two sliders (18). One end of the bidirectional lead screw (17) is rotatably connected to one side of the top plate (3).

3. The electrolytic device for extracting precious metals according to claim 2, characterized in that, The adjustment component further includes: A connecting plate (15) is installed at one end of the bidirectional lead screw (17); A handle (16) is installed on the top of one side of the connecting plate (15).

4. The electrolytic device for extracting precious metals according to claim 1, characterized in that, The replacement component includes: Four conductive pins (24) are threadedly installed on both sides of the top of the anode plate (14) and the cathode plate (22). The conductive pins (24) are elastically inserted into the top of the four slot busbars (20). The four conductive pins (24) are respectively connected to the inner side of the four second mounting bases (21). A fixing block (30) is fixedly installed on the bottom of the first mounting base (23); A circular plate (29) is installed at the bottom of the fixing block (30); The mounting slot is provided on the top of the second mounting base (21); Mounting plate (27) is installed on the bottom wall of the mounting groove; Two semi-circular plates (28) are symmetrically hinged to the top of the mounting plate (27), and the gap between the circular plate (29) and the two semi-circular plates (28) is adapted to each other; Two connecting blocks (25) are respectively installed on one side of the two semi-arc plates (28); Two elastic elements (26) are installed between the two connecting blocks (25) and the mounting plate (27).

5. The electrolytic device for extracting precious metals according to claim 1, characterized in that, The electrolytic device for precious metal extraction also includes: Two feed pipes (13) are symmetrically installed on the top of the top plate (3), and the two feed pipes (13) are connected to the interior of the electrolytic cylinder (6); The discharge pipe (4) is installed at the bottom of the electrolytic cylinder (6), the discharge pipe (4) penetrates the bottom of the box body (1), and the discharge pipe (4) is rotatably connected to the bottom of the box body (1); A valve (5) is installed on the discharge pipe (4).

6. The electrolytic device for extracting precious metals according to claim 5, characterized in that, The electrolytic device for precious metal extraction also includes: The first gear (8) is installed on the outer surface of the bottom of the electrolytic cylinder (6); The second gear (10) is disposed on one side of the first gear (8), and the second gear (10) meshes with one side of the first gear (8); A support plate (11) is installed on the top of the housing (1) near the second gear (10); A motor (12) is mounted on the top of the support plate (11), and the output end of the motor (12) is connected to the middle of the second gear (10).

7. The electrolytic device for extracting precious metals according to claim 6, characterized in that, The electrolytic device for precious metal extraction also includes: A convex ring (9) is installed at the bottom of the electrolytic cylinder (6); A convex groove is formed on the bottom wall of the inner cavity of the box (1), and the convex ring (9) is rotatably engaged with the bottom wall of the inner cavity of the box (1).

8. The electrolytic device for extracting precious metals according to claim 1, characterized in that, The electrolytic device for precious metal extraction also includes: The power supply (7) is installed at the bottom of the inner cavity of the box (1) on the side away from the electrolytic cylinder (6), and the four tank busbars (20) are all electrically connected to the power supply (7); A control panel (2) is installed on one side of the top of the housing (1), and the control panel (2) is electrically connected to the power supply (7) via a wire.

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