Valve components and high-purity gold diaphragm electrolysis equipment

Abstract

This invention relates to the field of valve technology and discloses a valve assembly and a high-purity gold diaphragm electrolysis device. The valve assembly includes: a recovery mechanism, comprising a liquid extraction pipe fixedly disposed at the bottom of the valve body, a collection chamber fixedly disposed at the bottom of the valve body, and a piston plate movably disposed in the collection chamber; and a drainage mechanism, comprising a squeezing plate fixedly disposed below the piston plate, a separation chamber fixedly disposed at the bottom of the collection chamber, a drainage box fixedly disposed at the center of the separation chamber, and a filter plate fixedly disposed on the drainage box. Through the recovery mechanism, metal debris deposited at the bottom of the lower chamber is recovered, and the recovery process does not require stopping the machine to disassemble the valve core, effectively improving the processing efficiency of the electrolysis equipment. At the same time, through the drainage mechanism, the squeezing plate squeezes the liquid in the drainage box, and then discharges the liquid into the valve body through the drainage pipe, thereby achieving solid-liquid separation of the liquid and metal debris, facilitating the subsequent recovery of metal debris.

Description

Technical Field

[0001] This invention relates to the field of valve technology, specifically to valve components and high-purity gold diaphragm electrolysis equipment. Background Technology

[0002] High-purity gold diaphragm electrolysis equipment is an electrolysis device specifically designed for the production or purification of high-purity gold. Its core lies in utilizing the principles of electrolysis and physical diaphragms to effectively separate gold from other impurities, ultimately obtaining extremely high-purity gold at the cathode.

[0003] In the use of electrolysis equipment, it is often necessary to regularly drain impurities. Specifically, soluble impurities (such as copper and iron ions) will accumulate in the solution in the anode chamber, and high-purity gold will be deposited in the cathode chamber. Therefore, it is necessary to regularly drain the electrolyte and replenish it with new liquid. In this process, valves play a crucial role in fluid control.

[0004] Due to the characteristics of the electrolysis process and the complexity of the electrolyte composition, the requirements for valve components are high. For example, Chinese patent CN207246462U discloses an electrolyte sealing valve. This technical solution sets up an anti-rust coating and an insulation layer to prevent the valve from being damaged in a high-temperature and humid environment and to prevent accidents caused by the valve being energized during use. It can also more effectively ensure the sealing performance of the valve, thereby avoiding leakage and the reduction of electrolyte purity.

[0005] For example, patent application CN106523717A discloses a leak-proof valve for sampling and testing electrolytic plating solution. In this technical solution, left and right pressure plates are respectively provided on the left and right sides of the fixed plate. A left telescopic rod is connected between the left pressure plate and the fixed plate, and a right telescopic rod is connected between the fixed plate and the right pressure plate. Left and right spiral springs are respectively sleeved on the outside of the left and right telescopic rods, which can more effectively ensure their sealing performance and thus greatly avoid water leakage.

[0006] It should be noted that for electrolysis equipment for high-purity gold, the discharged electrolyte not only contains dissolved metal ions and suspended matter, but also valuable solid metal debris, mainly gold powder and anode mud particles. These mainly originate from abnormal peeling of the cathode deposit, physical shedding during the anode dissolution process, and operational or equipment factors. During the discharge process, the metal debris is easily deposited in low-lying areas or dead corners inside the valve due to gravity settling.

[0007] The existing recycling method usually involves using tools to remove the valve core, recovering some of the metal scraps, and then reinstalling the valve core. However, the complexity of the recycling process leads to long downtime for the equipment, which significantly reduces the processing efficiency of the electrolysis equipment. Summary of the Invention

[0008] In view of the above-mentioned shortcomings of the prior art, the present invention provides a valve assembly and a high-purity gold diaphragm electrolysis device, which can effectively solve the problems proposed by the prior art.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] This invention provides a valve assembly, including a valve body, a valve seat fixedly disposed on the top of the valve body, a valve stem threadedly fixed in the valve seat, and a valve core movably disposed on the valve stem. Connecting flanges are fixedly installed at both ends of the valve body. The valve body is provided with an upper cavity and a lower cavity, which are connected by a sealing groove.

[0011] The recovery mechanism includes a liquid extraction pipe fixedly installed at the bottom of the valve body, a collection chamber fixedly installed at the bottom of the valve body, and a piston plate movably installed in the collection chamber. One end of the valve stem extends to the collection chamber and is movably connected to the piston plate. The collection chamber is provided with a liquid extraction chamber and a liquid distribution chamber from top to bottom.

[0012] The drainage mechanism includes a squeezing plate fixedly installed below the piston plate, a separation chamber fixedly installed at the bottom of the collection chamber, a drainage box fixedly installed at the center of the separation chamber, and a filter plate fixedly installed on the drainage box. A drainage pipe is fixedly connected to the bottom of the drainage box, and the end of the drainage pipe away from the drainage box is fixedly connected to the valve body.

[0013] Furthermore, the piston plate diameter is adapted to the liquid extraction chamber. When the valve is opened, the piston plate moves upward from the liquid separation chamber to the liquid extraction chamber, and when the valve is closed, the piston plate moves downward from the liquid extraction chamber to the liquid separation chamber.

[0014] Furthermore, the diameter of the squeezing plate is adapted to the drainage box. When the valve is opened, the squeezing plate moves upward from the drainage box to the liquid separation chamber. When the valve is closed, the squeezing plate moves downward from the liquid separation chamber to the drainage box.

[0015] Furthermore, the liquid extraction tube is located inside the collection chamber, and a one-way valve is fixedly installed in the liquid extraction tube. The liquid extraction tube is located at the bottom of the lower cavity and at the lowest point of the lower cavity.

[0016] Furthermore, an air outlet pipe is fixedly installed on one side of the liquid extraction pipe. The air outlet pipe is located in the liquid extraction chamber, and a one-way valve is fixedly installed in the air outlet pipe.

[0017] Furthermore, a valve assembly also includes an impact assembly, which includes a fixed tube fixedly disposed at the bottom of the valve body, an impact block movably disposed in the fixed tube, a magnetic block one fixedly installed on the top of the piston plate, and a magnetic block two fixedly installed on the bottom of the impact block. The fixed tube is located in the liquid extraction chamber, and the fixed tube and the liquid extraction tube are symmetrically arranged about the valve stem.

[0018] A reset spring is fixedly installed at the bottom of the second magnetic block, and the end of the reset spring away from the second magnetic block is fixedly connected to the inner wall of the fixed tube.

[0019] Furthermore, the impact block is spherical, and under the action of the return spring, the top of the impact block abuts against the bottom of the valve body, and the positions of magnetic block one and magnetic block two are matched.

[0020] Furthermore, an air inlet pipe is provided on one side of the drain box, located below the separation chamber, and a one-way valve is fixedly installed in the air inlet pipe.

[0021] Furthermore, the cross-section of the separation chamber is a cone shape with a larger top and a smaller bottom, and the bottom of the filter plate is flush with the inner wall of the bottom of the separation chamber.

[0022] The present invention also provides a high-purity gold diaphragm electrolysis device, which is fixedly installed with the above-mentioned valve assembly, including a tank body, the tank body having multiple chambers inside, a drain pipe fixedly installed on one side of the chamber, and the end of the drain pipe away from the tank body being fixedly connected to the valve body through a connecting flange.

[0023] The technical solution provided by this invention has the following advantages compared with the prior art:

[0024] 1. This invention is equipped with a recovery mechanism. In actual use, the piston plate moves synchronously with the valve core. After the upper and lower chambers are connected, the piston plate moves with the valve core into the liquid extraction chamber. During the closing of the sealing groove, the piston plate moves downward with the valve core. During the downward movement, a negative pressure is generated in the liquid extraction chamber, thereby drawing the liquid at the bottom of the lower chamber into the collection chamber through the liquid extraction pipe. After the piston plate moves downward into the liquid separation chamber, the liquid flows from the top of the piston plate into the separation chamber for temporary storage, thereby recovering the metal debris deposited at the bottom of the lower chamber. There is no need to stop the machine to disassemble the valve core, which effectively improves the processing efficiency of the electrolysis equipment.

[0025] 2. This invention is equipped with a drainage mechanism. When the piston plate moves upward, the squeezing plate moves upward as well until it moves above the drainage box. At this time, the liquid flows into the drainage box through the filter plate, while the metal debris remains in the separation chamber. When the piston plate moves downward, the squeezing plate moves downward and resets. During the downward movement, the squeezing plate squeezes the liquid in the drainage box, and then the liquid is transported from the drainage box to the valve body through the drainage pipe. This achieves solid-liquid separation of the liquid and the metal debris, which facilitates the subsequent recycling of the metal debris. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a valve assembly according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the valve body in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the valve seat structure in an embodiment of the present invention;

[0030] Figure 4 This is a cross-sectional view of the valve body in an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the one-way valve in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the recovery mechanism and the drainage mechanism in an embodiment of the present invention;

[0033] Figure 7 This is a cross-sectional view of the recycling mechanism in an embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of the impact component in an embodiment of the present invention;

[0035] Figure 9 This is a schematic diagram of the separation chamber in an embodiment of the present invention;

[0036] Figure 10 for Figure 9 A magnified structural diagram of part A in the middle;

[0037] Figure 11 This is a schematic diagram of the drainage box in an embodiment of the present invention;

[0038] Figure 12 This is a schematic diagram of the operation of the drain pipe in an embodiment of the present invention;

[0039] Figure 13 This is a schematic diagram of the structure of a high-purity gold diaphragm electrolysis device in an embodiment of the present invention.

[0040] Figure label:

[0041] 1. Valve body; 11. Valve seat; 12. Valve stem; 13. Valve core; 14. Upper cavity; 15. Lower cavity; 16. Sealing groove; 17. Sealing plate;

[0042] 2. Recycling mechanism; 21. Suction pipe; 22. Collection chamber; 23. Piston plate; 24. Suction chamber; 241. Gas outlet pipe; 25. Separation chamber;

[0043] 3. Drainage mechanism; 31. Squeezing plate; 32. Separation chamber; 33. Drainage box; 331. Air inlet pipe; 34. Filter plate; 35. Drainage pipe; 36. Connecting plate; 37. Locking block; 38. Through groove; 39. Connecting groove; 391. Sealing gasket;

[0044] 4. Tank body; 41. Chamber; 42. Drain pipe; 5. Impact assembly; 51. Fixing pipe; 52. Impact block; 53. Magnetic block one; 54. Magnetic block two; 55. Reset spring; 6. Baffle; 61. Sealing spring; 62. Limiting plate; 63. Vertical rod. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0046] The present invention will be further described below with reference to embodiments.

[0047] Example 1

[0048] Reference Figures 1-8 This first embodiment of the invention provides a valve assembly, including a valve body 1, a valve seat 11 fixedly disposed on the top of the valve body 1, a valve stem 12 threadedly fixed in the valve seat 11, and a valve core 13 movably disposed on the valve stem 12. Connecting flanges are fixedly installed at both ends of the valve body 1. The valve body 1 is provided with an upper cavity 14 and a lower cavity 15, which are connected by a sealing groove 16. Figure 2 As shown, it should be noted that by setting the upper cavity 14 and the lower cavity 15, an S-shaped flow channel is formed with the sealing groove 16. The flow channel is simple and has no dead corners, which effectively reduces electrolyte residue and makes cleaning and maintenance more convenient.

[0049] A sealing plate 17 is fixedly installed at the bottom of the valve seat 11. The valve seat 11 is fixedly connected to the top of the valve body 1 through the sealing plate 17, which seals the top of the valve body 1. Simultaneously, a sealing structure is provided at the connection between the valve stem 12 and the sealing plate 17 to ensure that the inside of the valve body 1 remains sealed when the valve stem 12 moves. The valve stem 12 is fixedly connected to the valve seat 11 by threads, and a rotating wheel is fixedly installed at the top of the valve stem 12. Figure 3 As shown, by driving the rotating wheel to rotate, the valve stem 12 is driven to rotate. At this time, under the action of the thread, the valve stem 12 gradually moves upward, and during the upward movement, it drives the valve core 13 to move upward.

[0050] The valve stem 12 is movably connected to the top of the valve core 13, ensuring that there is no interference between the valve core 13 and the valve stem 12 when the valve stem 12 moves. That is, during the rotation of the valve stem 12, if the valve core 13 is in the sealing groove 16, the valve core 13 remains stable under the action of friction between the valve core 13 and the sealing groove 16. The valve core 13 gradually moves upward with the valve stem 12. When the valve core 13 separates from the sealing groove 16, the sealing groove 16 is in the open state. At this time, whether the valve core 13 rotates with the valve stem 12 or not will not affect the liquid output.

[0051] The recycling mechanism 2 is used to recover metal debris deposited at the bottom of the lower chamber 15 without shutting down the equipment. It includes a suction pipe 21 fixedly located at the bottom of the valve body 1, a collection chamber 22 fixedly located at the bottom of the valve body 1, and a piston plate 23 movably located in the collection chamber 22. One end of the valve stem 12 extends to the collection chamber 22 and is movably connected to the piston plate 23. The collection chamber 22 has a suction chamber 24 and a distribution chamber 25 arranged from top to bottom. The suction pipe 21 is located inside the collection chamber 22, and a one-way valve is fixedly installed in the suction pipe 21. The diameter of the piston plate 23 is adapted to the suction chamber 24. Figure 4 As shown, when the valve is opened, the piston plate 23 moves upward from the liquid distribution chamber 25 to the liquid extraction chamber 24, and when the valve is closed, the piston plate 23 moves downward from the liquid extraction chamber 24 to the liquid distribution chamber 25.

[0052] The liquid extraction chamber 24 is used to extract liquid from the bottom of the lower chamber 15, while the liquid separation chamber 25 is used to temporarily store the extracted liquid.

[0053] Specifically, during the opening of the sealing groove 16, the valve core 13 moves upward. Under the action of the valve stem 12, the piston plate 23 moves upward synchronously with the valve core 13. At this time, the piston plate 23 gradually moves from the inside of the liquid distribution chamber 25 to the liquid extraction chamber 24. A gas outlet pipe 241 is fixedly installed on one side of the liquid extraction pipe 21. The gas outlet pipe 241 is located in the liquid extraction chamber 24. A one-way valve is fixedly installed in both the liquid extraction pipe 21 and the gas outlet pipe 241. The one-way valve is used to control the direction of fluid flow. That is, when the gas flows from the liquid extraction chamber 24 to the gas outlet pipe 241, the one-way valve is in the open state. When the gas flows from the gas outlet pipe 241 to the liquid extraction chamber 24, the one-way valve is in the closed state. Similarly, under the action of the one-way valve, both gas and liquid can only flow from the lower cavity 15 into the collection chamber 22, and cannot flow from the collection chamber 22 into the lower cavity 15.

[0054] The specific structure of the one-way valve is explained here, such as... Figure 5As shown, the one-way valve is fixedly installed in the liquid extraction pipe 21 and the gas outlet pipe 241. Specifically, fluid control is achieved through structures such as the baffle 6 and the sealing spring 61. A limit plate 62 is fixedly installed in the one-way valve, and a vertical rod 63 is fixedly installed at the center of the baffle 6. The vertical rod 63 is movably connected to the limit plate 62. At the same time, the sealing spring 61 is sleeved on the vertical rod 63, and both ends of the sealing spring 61 are fixedly connected to the baffle 6 and the limit plate 62, respectively. That is, the elastic force of the sealing spring 61 pushes the baffle 6 to seal. It should be noted that in the initial state, there is liquid in the lower cavity 15. The liquid exerts a certain pressure on the baffle 6. This pressure is much less than the thrust exerted by the sealing spring 61 on the baffle 6. Therefore, the baffle 6 always remains sealed when no external force is applied to it.

[0055] As the piston plate 23 moves upward within the extraction chamber 24, the gas in the extraction chamber 24 is compressed and gradually discharged from the outlet pipe 241. After the electrolyte is discharged, the sealing groove 16 closes, and the valve core 13 moves downward, which in turn drives the piston plate 23 to move downward. At this time, the one-way valve in the outlet pipe 241 closes, and a negative pressure is generated in the extraction chamber 24. Under the action of the air pressure, sufficient tension is applied to the baffle 6. This tension is greater than the elastic force of the sealing spring 61, and the sealing spring 61 is gradually compressed. At this time, the one-way valve gradually opens, and the liquid enters the extraction pipe 21.

[0056] When the one-way valve in the suction tube 21 is open, the liquid at the bottom of the lower cavity 15 flows into the suction chamber 24. Since the bottom of the lower cavity 15 is arc-shaped, the suction tube 21 is located at the lowest point of the lower cavity 15. Figure 7 As shown, when the suction tube 21 is opened, it generates sufficient suction to ensure that the metal debris deposited at the bottom of the lower cavity 15 enters the suction chamber 24 along with the liquid.

[0057] In summary, during use, the piston plate 23 moves synchronously with the valve core 13. After the upper cavity 14 and the lower cavity 15 are connected, the piston plate 23 moves with the valve core 13 into the liquid extraction chamber 24. During the closing of the sealing groove 16, the piston plate 23 moves downward with the valve core 13. During the downward movement, a negative pressure is generated in the liquid extraction chamber 24, thereby drawing the liquid at the bottom of the lower cavity 15 into the collection chamber 22 through the liquid extraction pipe 21. After the piston plate 23 moves downward into the liquid separation chamber 25, the liquid flows from the top of the piston plate 23 into the separation chamber 32 for temporary storage, thereby recovering the metal debris deposited at the bottom of the lower cavity 15. There is no need to stop the machine to disassemble the valve core 13, which effectively improves the processing efficiency of the electrolysis equipment.

[0058] It should be noted that, under the guidance of the piston plate 23, the liquid will flow down to the edge of the piston plate 23. Since the diameter of the piston plate 23 is larger than the diameter of the bottom drain box 33, the piston plate 23 effectively blocks the drain box 33, preventing the liquid from flowing into the drain box 33.

[0059] A valve assembly further includes an impact assembly 5, which includes a fixed tube 51 fixedly disposed at the bottom of the valve body 1, an impact block 52 movably disposed in the fixed tube 51, a magnetic block 53 fixedly installed on the top of the piston plate 23, and a magnetic block 54 fixedly installed on the bottom of the impact block 52. The fixed tube 51 is located in the liquid extraction chamber 24, and the fixed tube 51 and the liquid extraction tube 21 are symmetrically arranged about the valve stem 12.

[0060] A return spring 55 is fixedly installed at the bottom of magnetic block 54. The end of the return spring 55 away from magnetic block 54 is fixedly connected to the inner wall of the fixed tube 51. The impact block 52 is spherical, and under the action of the return spring 55, the top of the impact block 52 abuts against the bottom of the valve body 1. Magnetic block 53 and magnetic block 54 are positioned to match each other. Figure 7 and Figure 8 As shown.

[0061] The engagement of magnetic block 53, magnetic block 54, and impact block 52 is as follows: In the initial state, under the elastic force of the return spring 55, the top of impact block 52 abuts against the outer wall of the bottom of valve body 1. As the piston plate 23 moves upward, the distance between magnetic block 53 and magnetic block 54 gradually shortens. At this time, the attraction of magnetic block 53 to magnetic block 54 gradually increases. When the attraction of magnetic block 53 to magnetic block 54 exceeds the elastic force of the return spring 55, magnetic block 54 begins to move downward, and the return spring 55 gradually compresses. As the impact block 52 gradually separates from the valve body 1, the distance between the first magnetic block 53 and the second magnetic block 54 gradually increases when the attraction of the first magnetic block 53 to the second magnetic block 54 is less than the elastic force of the return spring 55. Under the action of the return spring 55, the impact block 52 is driven to move upward until the impact block 52 collides with the outer wall of the valve body 1. The vibration generated by the impact causes the metal debris adsorbed on the inner wall of the lower cavity 15 to fall off, and then cooperate with the liquid extraction tube 21 to effectively improve the extraction effect of metal debris.

[0062] Example 2

[0063] Reference Figures 9-12 In the second embodiment of the present invention, a valve assembly further includes a drainage mechanism 3, which includes a squeezing plate 31 fixedly disposed below the piston plate 23, a separation chamber 32 fixedly disposed at the bottom of the collection chamber 22, a drainage box 33 fixedly disposed at the center of the separation chamber 32, and a filter plate 34 fixedly disposed on the drainage box 33. The separation chamber 32 is used for temporary storage of liquid containing metal fragments, and the drainage box 33 is used for solid-liquid separation.

[0064] The separation chamber 32 has a connecting plate 36 fixedly installed on its top, and an L-shaped locking block 37 is fixedly installed on the top of the connecting plate 36. Multiple locking blocks 37 are evenly distributed on the connecting plate 36. The bottom of the collection chamber 22 has a through groove 38, and one side of the through groove 38 has a connecting groove 39 that matches the locking block 37. Figure 9 and Figure 10 As shown, in actual use, the locking block 37 on the top of the connecting plate 36 is inserted from the bottom of the through groove 38, and the separation chamber 32 is rotated at the same time, which drives the locking block 37 to move in the connecting groove 39 until the locking block 37 moves to the end of the connecting groove 39. The locking block 37 is engaged with the connecting groove 39 to achieve a fixed connection between the separation chamber 32 and the collection chamber 22. At the same time, when removing metal debris, it is only necessary to rotate the separation chamber 32 in the opposite direction to move the locking block 37 to the top of the through groove 38. At this time, the separation chamber 32 can be disassembled by pulling it down. The installation and disassembly efficiency is high, and it is convenient for cleaning and collecting metal debris.

[0065] A sealing gasket 391 is fixedly installed on the top of the connecting plate 36. The top of the sealing gasket 391 abuts against the bottom of the collection chamber 22, and the sealing gasket 391 ensures the airtightness between the connecting plate 36 and the collection chamber 22.

[0066] The diameter of the squeezing plate 31 is adapted to the drain box 33. When the valve is open, the squeezing plate 31 moves upward from inside the drain box 33 into the liquid distribution chamber 25. When the valve is closed, the squeezing plate 31 moves downward from inside the liquid distribution chamber 25 into the drain box 33. A drain pipe 35 is fixedly connected to the bottom of the drain box 33. The end of the drain pipe 35 away from the drain box 33 is fixedly connected to the valve body 1. When the sealing groove 16 is closed, the squeezing plate 31 is located in the drain box 33. When the valve core 13 moves upward, the squeezing plate 31 moves upward synchronously with the piston plate 23. After the valve core 13 moves into position, the squeezing plate 31 moves out from the top of the drain box 33. At this time, the liquid flows into the drain box 33 after being filtered by the filter plate 34. Figure 11 As shown.

[0067] It should be noted that after the squeezing plate 31 moves down to its position, new liquid enters the separation chamber 32 from the piston plate 23. At this time, the liquid enters the drain box 33 through the filter plate 34. Since the squeezing plate 31 is still located in the drain box 33, the liquid is located above the squeezing plate 31. When the squeezing plate 31 moves up later, it drives the liquid to move up, thereby causing the liquid to flow back into the separation chamber 32 from the top of the drain box 33. The flowing liquid is used to flush the metal debris in the separation chamber 32 and the filter plate 34, effectively preventing the accumulation of metal debris and clogging of the filter plate 34.

[0068] The separation chamber 32 has a tapered cross-section that is larger at the top and smaller at the bottom. The bottom of the filter plate 34 is flush with the inner wall of the bottom of the separation chamber 32. An air inlet pipe 331 is provided on one side of the drain box 33. The air inlet pipe 331 is located below the separation chamber 32. A one-way valve is fixedly installed in the air inlet pipe 331. The air inlet pipe 331 is used to ensure the stability of the air pressure inside the drain box 33 during the upward movement of the extrusion plate 31, so as to avoid the air pressure affecting the movement of the extrusion plate 31.

[0069] The one-way valve is used to control the direction of gas flow. When the gas flows from the inlet pipe 331 to the drain box 33, the one-way valve is in the open state, and when the gas flows from the drain box 33 to the inlet pipe 331, the one-way valve is in the closed state.

[0070] In summary, when the piston plate 23 moves upward, the squeezing plate 31 moves upward accordingly until it reaches above the drain box 33. At this time, the liquid flows into the drain box 33 through the filter plate 34, while the metal debris remains in the separation chamber 32. When the piston plate 23 moves downward, the squeezing plate 31 moves downward and resets. During the downward movement, the squeezing plate 31 squeezes the liquid in the drain box 33. Figure 12 As shown, where Figure 11 and Figure 12 The middle arrow indicates the direction of liquid flow, and the liquid is discharged into the valve body 1 through the drain pipe 35, thereby achieving solid-liquid separation of liquid and metal debris, which facilitates the subsequent recycling of metal debris.

[0071] Example 3

[0072] Reference Figure 13 The third embodiment of the present invention provides a high-purity gold diaphragm electrolysis device, including a tank 4, a plurality of chambers 41 are provided inside the tank 4, a drain pipe 42 is fixedly installed on one side of the chamber 41, and the end of the drain pipe 42 away from the tank 4 is fixedly connected to the valve body 1 through a connecting flange.

[0073] The tank 4 is equipped with a diaphragm located between the various chambers 41. Each chamber 41 includes a positive electrode chamber and a negative electrode chamber. The inner walls of both the positive and negative electrode chambers are fixedly equipped with slots for fixing the electrode plates. When discharging the electrolyte in the chamber 41, only the valve body 1 needs to be opened to discharge the electrolyte through the drain pipe 42.

[0074] In summary, based on Embodiments 1, 2, and 3, the present invention utilizes the recycling mechanism 2 to recover metal debris deposited at the bottom of the lower cavity 15 without requiring the valve core 13 to be disassembled during the recycling process, thus effectively improving the processing efficiency of the electrolysis equipment. Simultaneously, the drainage mechanism 3 uses the squeezing plate 31 to squeeze the liquid in the drainage box 33, which is then discharged into the valve body 1 through the drainage pipe 35, thereby achieving solid-liquid separation between the liquid and the metal debris, facilitating subsequent metal debris recovery.

[0075] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A valve assembly comprising a valve body (1), a valve seat (11) fixedly disposed on the top of the valve body (1), a valve stem (12) threadedly fixed in the valve seat (11), and a valve core (13) movably disposed on the valve stem (12), characterized in that: The valve body (1) is fixedly installed with connecting flanges at both ends. The valve body (1) is provided with an upper cavity (14) and a lower cavity (15). The upper cavity (14) and the lower cavity (15) are connected by a sealing groove (16). The recovery mechanism (2) includes a liquid extraction pipe (21) fixedly installed at the bottom of the valve body (1), a collection chamber (22) fixedly installed at the bottom of the valve body (1), and a piston plate (23) movably installed in the collection chamber (22). One end of the valve stem (12) extends to the collection chamber (22) and is movably connected to the piston plate (23). The collection chamber (22) is provided with a liquid extraction chamber (24) and a liquid distribution chamber (25) from top to bottom. The draining mechanism (3) includes a squeezing plate (31) fixedly installed below the piston plate (23), a separation chamber (32) fixedly installed at the bottom of the collection chamber (22), a drain box (33) fixedly installed at the center of the separation chamber (32), and a filter plate (34) fixedly installed on the drain box (33). A drain pipe (35) is fixedly connected to the bottom of the drain box (33), and the end of the drain pipe (35) away from the drain box (33) is fixedly connected to the valve body (1). The diameter of the piston plate (23) is adapted to the liquid extraction chamber (24). When the valve is opened, the piston plate (23) moves upward from the liquid distribution chamber (25) to the liquid extraction chamber (24). When the valve is closed, the piston plate (23) moves downward from the liquid extraction chamber (24) to the liquid distribution chamber (25). The diameter of the squeezing plate (31) is adapted to the drainage box (33). When the valve is opened, the squeezing plate (31) moves upward from the drainage box (33) to the liquid distribution chamber (25). When the valve is closed, the squeezing plate (31) moves downward from the liquid distribution chamber (25) to the drainage box (33). The liquid extraction tube (21) is located inside the collection chamber (22). A one-way valve is fixedly installed in the liquid extraction tube (21). The liquid extraction tube (21) is located at the bottom of the lower cavity (15) and at the lowest point of the lower cavity (15).

2. A valve assembly according to claim 1, characterized in that: A gas outlet pipe (241) is fixedly installed on one side of the liquid extraction pipe (21). The gas outlet pipe (241) is located in the liquid extraction chamber (24). A one-way valve is fixedly installed in the gas outlet pipe (241).

3. A valve assembly according to claim 1, characterized in that: It also includes an impact assembly (5), which includes a fixed tube (51) fixedly disposed at the bottom of the valve body (1), an impact block (52) movably disposed in the fixed tube (51), a magnetic block one (53) fixedly installed on the top of the piston plate (23), and a magnetic block two (54) fixedly installed on the bottom of the impact block (52). The fixed tube (51) is located in the liquid extraction chamber (24), and the fixed tube (51) and the liquid extraction tube (21) are symmetrically arranged about the valve stem (12). A reset spring (55) is fixedly installed at the bottom of the magnetic block two (54), and the end of the reset spring (55) away from the magnetic block two (54) is fixedly connected to the inner wall of the fixed tube (51).

4. A valve assembly according to claim 3, characterized in that: The impact block (52) is spherical, and the top of the impact block (52) abuts against the bottom of the valve body (1) under the action of the return spring (55). The positions of the first magnetic block (53) and the second magnetic block (54) are matched.

5. A valve assembly according to claim 1, characterized in that: An air inlet pipe (331) is provided on one side of the drain box (33). The air inlet pipe (331) is located below the separation chamber (32). A one-way valve is fixedly installed in the air inlet pipe (331).

6. A valve assembly according to claim 5, characterized in that: The separation chamber (32) has a cone-shaped cross-section that is larger at the top and smaller at the bottom, and the bottom of the filter plate (34) is flush with the inner wall of the bottom of the separation chamber (32).

7. A high-purity gold diaphragm electrolysis device, wherein a valve assembly as described in any one of claims 1-6 is fixedly installed, characterized in that: Includes a tank (4), which has multiple chambers (41) inside. A drain pipe (42) is fixedly installed on one side of each chamber (41). The end of the drain pipe (42) away from the tank (4) is fixedly connected to the valve body (1) through a connecting flange.

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