A filter for antimony ingot hydrometallurgy

Abstract

The present invention belongs to the field of antimony ingot smelting, and specifically is an antimony ingot wet smelting filter, comprising a filter tank, a filter screen cover is arranged at the inner middle part of the filter tank, the center and the edges of the filter screen cover are arranged in an upward arched shape, the bottom of the filter tank is arranged in an open shape, a leakage net is fixedly connected to the bottom of the filter tank, a plurality of guide plates penetrating to the inner side of the filter tank are arranged on the outer side of the filter tank, a separation component is arranged on the outer side of the filter screen cover, the separation component is used to open the bottom of the filter screen cover, a plurality of support seats are fixedly connected to the edge of the bottom of the filter tank, and the shape of the filter screen cover is redesigned, the filter screen cover is designed to be in an upward arched shape at the center and the edges of the filter screen cover, the overall process is fast, the filter screen cover can be quickly returned to the initial state, and the best effect of filtering metal sediment is always maintained without taking up too much time, thereby improving the efficiency of the overall filtering process.

Description

Technical Field

[0001] The invention belongs to the field of antimony ingot smelting, in particular to an antimony ingot wet smelting filter. Background Art

[0002] Antimony ingot, commonly known as refined antimony, is mainly used as a hardener for alloys in metallurgy, batteries, military and other industries. The process of producing metallic antimony by leaching antimony concentrate with alkaline solution and electrolytic deposition is one of the wet antimony refining methods.

[0003] Alkaline leaching of antimony concentrate is the process of dissolving antimony in antimony concentrate with alkaline solution. Na2S and NaOH solutions are used as leaching agents in industry. Alkaline leaching has good selectivity and can separate gold, silver, lead, copper, zinc, and other associated metals in antimony concentrate, such as aluminum, iron, copper, zinc, bismuth, molybdenum, cadmium, silver and gold, as well as arsenic in the form of arsenopyrite (FeAsS), which have extremely low solubility in alkaline sulfide solution and are enriched in the leaching residue.

[0004] Traditional filters generally use a screen to allow the solution produced during the smelting process to pass through the screen, allowing the metal precipitate to be filtered above the filter, thereby realizing the function of recovering the precipitate. However, the amount of solution used in the hydrometallurgical smelting process of antimony ingots is huge, and the amount of metal precipitate produced is also large. This filtering method will accumulate a large amount of precipitate on the screen in a short period of time, and the precipitate treatment requires cleaning the entire screen, so the filtering process has to be stopped, making the traditional method of filtering efficiency low, which is not conducive to the overall process of hydrometallurgical smelting of antimony ingots.

[0005] To this end, the present invention provides an antimony ingot wet smelting filter. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: the antimony ingot wet smelting filter of the present invention comprises a filter tank, a filter screen cover is arranged at the inner middle part of the filter tank, the center and the edges of the filter screen cover are arranged in an upward arched shape, the bottom of the filter tank is arranged in an open shape, a leakage net is fixedly connected to the bottom of the filter tank, a plurality of guide plates penetrating to the inner side of the filter tank are arranged on the outer side of the filter tank, a separation component is arranged on the outer side of the filter screen cover, the separation component is used to open the bottom of the filter screen cover, and a plurality of support seats are fixedly connected to the bottom of the filter tank near the edge;

[0008] By redesigning the shape of the filter screen cover, the filter screen cover is designed to be arched in the center and around the edges. When the solution passes through the filter screen cover from top to bottom, the filter screen cover with a raised center will diffuse the concentrated solution to the surrounding areas. Since the edges around the filter screen cover are also arched upward, the solution can be well held. In this way, the solution from top to bottom can pass through the entire filter screen cover more evenly, reducing the problem of metal sediment being concentrated in the middle of the filter screen cover, which causes the subsequent solution to be unable to pass through the filter screen cover smoothly. After collecting for a period of time, the separation component will open the bottom part of the filter screen cover. After opening, the filtered metal sediment will fall onto the guide plate and eventually be guided out. The solution with the removed sediment will eventually flow out from the bottom of the net and can be collected. The overall process is fast, allowing the filter screen cover to quickly return to its initial state, always maintaining the best effect of filtering metal sediment without taking up too much time, thereby improving the efficiency of the overall filtration process.

[0009] Preferably, a straight rod is fixedly connected to the middle part of the bottom surface of the filter screen cover, a telescopic sleeve is fixedly connected to the bottom of the straight rod, a sliding rod is slidably connected to the bottom of the telescopic sleeve, a first spring is fixedly connected between the sliding rod and the telescopic sleeve, a top seat is fixedly connected between the bottom of the sliding rod and the filter, and a sealing cover is fixedly connected above the top protrusion of the filter screen cover. Through the setting of the sealing cover, the solution cannot pass through the sealing cover, so that the solution from top to bottom will give a certain impact force to the filter screen cover. Under the action of impact and the cooperation of the telescopic sleeve, the sliding rod and the first spring, the entire filter screen cover can fluctuate up and down. Under the action of fluctuation, the filtered metal sediment will be more evenly spread on the concave part of the entire filter screen cover, reducing the problem of affecting the filtering process.

[0010] Preferably, the filter screen cover is composed of an outermost maintenance ring net, a supporting screen plate and three movable screen plates. The end of the movable screen plate close to the straight rod is rotatably connected to the supporting screen plate through a spring damping hinge. The thickness of the movable screen plate is less than that of the supporting screen plate. The separation component includes three steel cables. A pulling component is provided at one end of the steel cable. A magnetic buckle is fixed to the top of the outer side of the movable screen plate. The thickness of the movable screen plate is less than that of the supporting screen plate. The thickness difference is specifically reflected on the inner wall. Therefore, when viewed from the inside of the filter screen cover, there is a certain height difference between the movable screen plate and the supporting screen plate. In this way, under the ups and downs of the overall filter screen cover, metal sediment It is easier to stay above the moving mesh plate, so that when the pulling component pulls the steel cable, the moving mesh plate can be pulled downward. In this process, the solution pouring is stopped and replaced with clean water. This not only allows the entire filter screen to rise and fall continuously, but also because the solution is rich in strong alkaline substances, irregular cleaning of the filter screen will reduce its service life. At the same time, with the shaking caused by gravity and fluctuations, the metal sediment on the moving mesh plate can be moved to the guide plate and finally guided to the outside of the collection cover. After that, the pulling component is closed, and the moving mesh plate returns to its position under the action of the spring damping hinge, and the adsorption effect of the magnetic buckle is cooperated to ensure a firm connection.

[0011] Preferably, a protective frame is fixedly connected between the straight rod and the telescopic sleeve, and the pulling assembly includes a reduction motor, a winding drum is fixedly connected to the top of the reduction motor, and the three steel cables all pass through the protective frame and are fixedly connected to the outer side of the winding drum. The winding drum is driven to rotate by the reduction motor, and the three steel cables are wound on the outer side of the winding drum, thereby pulling the movable mesh plates at the same time, allowing the three movable mesh plates to unfold downward, so that the metal sediment above can be discharged smoothly.

[0012] Preferably, an upper cover is fixedly connected to the top of the filter tank, and a collecting cover which is wide at the top and narrow at the bottom is fixedly connected to the middle of the upper cover. Since the volatilization of chemical reagents such as sodium hydroxide and sodium sulfide may have an impact on the human body, the top of the filter tank is sealed by the upper cover, and the collecting cover which is wide at the top and narrow at the bottom can well concentrate the solution toward the top of the sealing cover, and the bottom of the filter tank is received by a sealed container.

[0013] Preferably, the guide plate is arranged at an angle, and three lifting valves are arranged on the side walls of the filter tank. The guide plate is adapted to the valves. After the movable mesh plate is opened, its bottom is fitted with the top surface of the guide plate. The connectivity between the guide plate and the outside world is controlled by the lifting and lowering of the valve. When the sediment needs to be discharged, the valve is opened to discharge the sediment outward. After the valve is closed, a sealed space is formed in the filter tank to reduce the volatilization of the solution.

[0014] Preferably, three diverter plates are fixedly connected to the outer side of the sealing cover, and a ridge is fixedly connected to the inner wall of the supporting mesh plate, and the ridge is aligned with the position of the diverter plate. The setting of the diverter plate allows the solution from top to bottom to be divided into two groups, one group flows down normally along the gap of the diverter plate, and the other group diffuses outward, so that the filtered sediment will gather to the bottom of the filter mesh cover from two directions. At the same time, with the setting of the ridge on the inner wall of the supporting mesh plate, during the ups and downs of the filter mesh cover, most of the sediment will eventually move toward the moving mesh plate due to the ridge in the center of the supporting mesh plate, ensuring that a large amount of sediment will be transferred to the moving mesh plate, thereby assisting the smooth transfer of the sediment.

[0015] Preferably, a storage box is fixedly connected to the bottom of the telescopic sleeve, and a trigger rod is connected to the bottom of the reduction motor, and the trigger rod passes through the storage box and is located in the telescopic sleeve. A pressure bag is fixedly connected to the bottom of the storage box, and the pressure bag is fixedly connected to the top of the sliding rod. The pressure bag and the storage box are communicated with each other. In order to optimize the control system of the entire device, a trigger rod is provided. During the entire sediment filtering process, the reduction motor will not start. When the solution becomes clean water, the clean water flow rate is increased to increase the force of compressing the sealing cover. In this way, the telescopic sleeve is over-pressed, allowing the sliding rod to squeeze the trigger rod, thereby starting the reduction motor. In this way, the opening or closing of the movable screen can be controlled by the flow rate of the solution and the flow rate of the clean water introduced from above. After the compression is over, the trigger rod returns to its position under the action of gravity, the reduction motor is turned off, and the moving screen plate returns to its position under the action of the spring damping hinge. This setting reduces the difficulty of operation. It only needs to control the flow rate of the solution and the flow rate of the clean water to complete the discharge of the sediment. In order to increase fault tolerance, reduce the opening of the moving screen plate during solution filtration, increase the storage box and the pressure bag. When there is a lot of sediment in the solution, causing the pressure on the sealing cover to exceed the threshold for a while, the sliding rod will first contact the pressure bag. The pressure bag needs to discharge the internal air into the storage box, so that the sliding rod cannot contact the trigger rod at the first time. Only when the sealing cover is continuously subjected to stable and high pressure will there be enough time for the sliding rod to squeeze the trigger rod.

[0016] Preferably, the storage box and the pressure bag are both arranged in an annular shape and surround the outside of the trigger rod. The inside of the storage box is filled with liquid. A plurality of one-way communicating vessels are connected between the pressure bag and the storage box. By being filled with liquid, the liquid can not only provide a buffer and reduce the impact on the pressure bag, but also the annular shape of the storage box and the pressure bag prevents the trigger rod from contacting the two and preventing the two from affecting each other.

[0017] Preferably, the one-way communicating vessel is composed of two one-way valve assemblies, and the diameters of the two one-way valves are different. The diameter of the one-way valve transmitting water from the storage box to the pressure bag is larger than the diameter of the one-way valve transmitting water from the pressure bag to the storage box. The two one-way valves with different diameters allow the pressure bag to drain water into the storage box more slowly and return water faster, further increasing the time required for the slide rod to contact the trigger rod, thereby reducing false triggering.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The antimony ingot wet smelting filter described in the present invention redesigns the shape of the filter screen cover, and designs the filter screen cover to be arched in the center and the edges around it. When the solution passes through the filter screen cover from top to bottom, the filter screen cover with the raised center will diffuse the concentrated solution to the surrounding areas. Since the edges around the filter screen cover are also arched upward, the solution can be well held. In this way, the solution from top to bottom can pass through the entire filter screen cover more evenly, reducing the concentration of metal sediment in the middle of the filter screen cover, which causes the subsequent solution to be unable to pass through the filter screen cover smoothly. After collecting for a period of time, the separation component will open the bottom part of the filter screen cover. After opening, the filtered metal sediment will fall onto the guide plate and finally be guided out. The solution of the removed sediment will eventually flow out from the bottom of the net and can be collected. The overall process is fast, and the filter screen cover can be quickly returned to the initial state, so as to maintain the best effect of filtering metal sediment without taking up too much time, thereby improving the efficiency of the overall filtering process.

[0020] 2. The antimony ingot wet smelting filter described in the present invention prevents the solution from passing through the sealing cover through the setting of the sealing cover, so that the solution from top to bottom will give a certain impact force to the filter screen cover. Under the impact and with the cooperation of the telescopic sleeve, the sliding rod and the first spring, the entire filter screen cover can fluctuate up and down. Under the fluctuating effect, the filtered metal sediment will be more evenly spread on the concave part of the entire filter screen cover, reducing the problem of the filtration process being affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 is a stereogram of the present invention;

[0023] Figure 2 is a cross-sectional view of the present invention;

[0024] Figure 3 is a three-dimensional diagram of the filter screen cover of the present invention;

[0025] Figure 4 It is a three-dimensional diagram of the maintenance ring net and the supporting mesh plate of the present invention;

[0026] Figure 5 is a three-dimensional diagram of the filter screen cover and the guide plate of the present invention;

[0027] Figure 6 is a stereogram of the telescopic sleeve of the present invention;

[0028] Figure 7 is a cross-sectional view of the telescopic sleeve of the present invention;

[0029] Figure 8 is a three-dimensional diagram of a storage box of the present invention;

[0030] In the figure: 1. collecting hood; 2. upper cover; 3. filter tank; 4. guide plate; 5. valve; 6. filter screen cover; 7. diverter plate; 8. support seat; 9. top seat; 10. filter screen; 11. maintaining circle net; 12. supporting mesh plate; 13. moving mesh plate; 14. magnetic buckle; 15. steel cable; 16. protection frame; 17. telescopic sleeve; 18. sealing cover; 20. reduction motor; 21. winding reel; 22. sliding rod; 23. first spring; 24. storage box; 25. pressure bag; 26. trigger rod; 27. straight rod. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] like Figures 1 to 5 As shown, an antimony ingot wet smelting filter according to an embodiment of the present invention comprises a filter tank 3, a filter screen cover 6 is arranged at the inner middle part of the filter tank 3, the center and the edges of the filter screen cover 6 are arranged in an upward arched shape, the bottom of the filter tank 3 is arranged in an open shape, a leakage net 10 is fixedly connected to the bottom of the filter tank 3, a plurality of guide plates 4 penetrating to the inner side of the filter tank 3 are arranged on the outer side of the filter tank 3, a separation component is arranged on the outer side of the filter screen cover 6, and the separation component is used to open the bottom of the filter screen cover 6, and a plurality of support seats 8 are fixedly connected to the bottom of the filter tank 3 near the edge;

[0033] When working, the traditional filter generally uses a screen to allow the solution generated during the smelting process to pass through the screen, allowing the metal sediment to be filtered above the filter to achieve the function of recovering the sediment. However, the amount of solution used in the hydrometallurgical smelting process of antimony ingots is huge, and the amount of metal sediment generated is also large. This filtering method will accumulate a large amount of sediment on the screen in a short time, and the sediment treatment requires cleaning the entire screen, so the filtering process has to be stopped, making the traditional method The filtering efficiency is low, which is not conducive to the overall process of hydrometallurgical smelting antimony ingots;

[0034] By redesigning the shape of the filter screen cover 6, the filter screen cover 6 is designed to be arched in the center and around the edges. When the solution passes through the filter screen cover 6 from top to bottom, the filter screen cover 6 with the raised center will diffuse the concentrated solution to the surrounding areas. Since the edges around the filter screen cover 6 are also arched upward, the solution can be well held. In this way, the solution from top to bottom can pass through the entire filter screen cover 6 more evenly, reducing the concentration of metal sediment in the middle of the filter screen cover 6, which causes the subsequent solution to be unable to pass through the filter screen cover 6 smoothly. After collecting for a period of time, the separation component will open the bottom part of the filter screen cover 6. After opening, the filtered metal sediment will fall onto the guide plate 4 and will eventually be guided out. The solution with the removed sediment will eventually flow out from the bottom of the filter net 10 and can be collected. The overall process is fast, and the filter screen cover 6 can be quickly returned to the initial state, always maintaining the best effect of filtering metal sediment without taking up too much time, thereby improving the efficiency of the overall filtering process.

[0035] like Figures 1 to 7 As shown, a straight rod 27 is fixedly connected to the middle of the bottom surface of the filter screen cover 6, a telescopic sleeve 17 is fixedly connected to the bottom of the straight rod 27, a sliding rod 22 is slidably connected to the bottom of the telescopic sleeve 17, a first spring 23 is fixedly connected between the sliding rod 22 and the telescopic sleeve 17, a top seat 9 is fixedly connected between the bottom of the sliding rod 22 and the leakage net 10, and a sealing cover 18 is fixedly connected above the top protrusion of the filter screen cover 6;

[0036] During operation, the sealing cover 18 is set to prevent the solution from passing through the sealing cover 18, so that the solution from top to bottom will give a certain impact force to the filter screen cover 6. Under the impact and with the cooperation of the telescopic sleeve 17, the slide rod 22 and the first spring 23, the entire filter screen cover 6 can fluctuate up and down. Under the fluctuating effect, the filtered metal sediment will be more evenly spread on the concave part of the entire filter screen cover 6, reducing the problem of the filtering process being affected.

[0037] like Figures 1 to 7 As shown, the filter screen cover 6 is composed of an outermost maintenance ring net 11, a supporting mesh plate 12 and three movable mesh plates 13. The end of the movable mesh plate 13 close to the straight rod 27 is rotatably connected to the supporting mesh plate 12 through a spring damping hinge. The thickness of the movable mesh plate 13 is less than that of the supporting mesh plate 12. The separation component includes three steel cables 15. A pulling component is provided at one end of the steel cable 15. A magnetic buckle 14 is fixed to the outer top of the movable mesh plate 13.

[0038] When working, the thickness of the movable mesh plate 13 is smaller than that of the supporting mesh plate 12, and the thickness difference is specifically reflected on the inner wall. Therefore, from the inside of the filter screen cover 6, there is a certain height difference between the movable mesh plate 13 and the supporting mesh plate 12. In this way, under the ups and downs of the overall filter screen cover 6, the metal sediment is more likely to remain above the movable mesh plate 13. In this way, when the pulling component pulls the steel cable 15, the movable mesh plate 13 can be pulled downward. In this process, the solution irrigation is stopped from the top and replaced with clean water irrigation. This not only allows the ups and downs of the entire filter screen cover 6 to continue, but also because the solution is rich in strong alkaline substances, irregular cleaning of the filter screen cover 6 will reduce its service life. At the same time, with the shaking caused by gravity and ups and downs, the metal sediment on the movable mesh plate 13 can be moved to the guide plate 4, and finally guided to the outside of the collection cover 1. Then the pulling component is closed, and under the action of the spring damping hinge, the movable mesh plate 13 returns to its position, and with the adsorption effect of the magnetic buckle 14, the connection is ensured to be firm.

[0039] like Figures 1 to 7 As shown, a protective frame 16 is fixedly connected between the straight rod 27 and the telescopic sleeve 17, the pulling assembly includes a reduction motor 20, a winding drum 21 is fixedly connected to the top of the reduction motor 20, and the three steel cables 15 all pass through the protective frame 16 and are fixedly connected to the outer side of the winding drum 21;

[0040] During operation, the reduction motor 20 drives the winding drum 21 to rotate, and then the three steel cables 15 are wound on the outside of the winding drum 21, thereby pulling the movable mesh plates 13 at the same time, so that the three movable mesh plates 13 are unfolded downward, and the metal sediment on the top can be discharged smoothly.

[0041] like Figures 1 to 7 As shown, the top of the filter tank 3 is fixedly connected with an upper cover 2, and the middle of the upper cover 2 is fixedly connected with a collection cover 1 which is wide at the top and narrow at the bottom;

[0042] During operation, since the volatilization of chemical reagents such as sodium hydroxide and sodium sulfide will have an impact on the human body, the top of the filter tank 3 is closed by the upper cover 2, and the collection cover 1 with a wide top and a narrow bottom can well concentrate the solution toward the top of the sealing cover 18, and the bottom of the filter tank 3 is received by a sealed container.

[0043] like Figures 1 to 7 As shown, the guide plate 4 is inclined, and three lifting valves 5 are arranged on the side wall of the filter tank 3. The guide plate 4 is adapted to the valves 5. After the movable mesh plate 13 is opened, its bottom is in contact with the top surface of the guide plate 4.

[0044] During operation, the connection between the guide plate 4 and the outside is controlled by the lifting of the valve 5. When the sediment needs to be discharged, the valve 5 is opened to discharge the sediment. After the valve 5 is closed, a sealed space is formed in the filter tank 3 to reduce the volatilization of the solution.

[0045] like Figures 1 to 7 As shown, three diverter plates 7 are fixedly connected to the outer side of the sealing cover 18, and a ridge is fixedly connected to the inner wall of the supporting mesh plate 12, and the ridge is aligned with the diverter plate 7 in the vertical direction;

[0046] During operation, the setting of the diverter plate 7 allows the solution from top to bottom to be divided into two groups, one of which flows normally along the gap of the diverter plate 7, and the other diffuses outward, so that the filtered sediment will gather at the bottom of the filter screen cover 6 from two directions. At the same time, in conjunction with the setting of the bulge on the inner wall of the supporting screen plate 12, during the ups and downs of the filter screen cover 6, most of the sediment will eventually move toward the moving screen plate 13 due to the bulge in the center of the supporting screen plate 12, ensuring that a large amount of sediment will be transferred to the moving screen plate 13, thereby assisting the smooth transfer of the sediment.

[0047] like Figures 6 to 8 As shown, a storage box 24 is fixedly connected to the bottom of the telescopic sleeve 17, a trigger rod 26 is connected to the bottom of the reduction motor 20, the trigger rod 26 passes through the storage box 24 and is located in the telescopic sleeve 17, a pressure bag 25 is fixedly connected to the bottom of the storage box 24, the pressure bag 25 is fixedly connected to the top of the slide bar 22, and the pressure bag 25 and the storage box 24 are communicated with each other;

[0048] During operation, in order to optimize the control system of the entire device, a trigger rod 26 is provided. During the entire process of filtering the sediment, the reduction motor 20 will not start. When the solution becomes clean water, the clean water flow rate is increased to increase the force of pressing the sealing cover 18, so that the telescopic sleeve 17 is excessively pressed down, allowing the slide bar 22 to squeeze the trigger rod 26, thereby starting the reduction motor 20. In this way, the opening or closing of the movable mesh plate 13 can be controlled by the flow rate of the solution and the clean water introduced from above. When the pressing is over, the trigger rod 26 returns to its original position under the action of gravity, the reduction motor 20 is closed, and the movable mesh plate 13 moves back to its original position under the action of the spring damping hinge. This setting reduces the difficulty of operation. It is only necessary to control the flow rate of the solution and the flow rate of the clean water to complete the discharge of the sediment. In order to increase fault tolerance and reduce the opening of the mobile screen 13 during solution filtration, a storage box 24 and a pressure bag 25 are added. When there is a lot of sediment in the solution, causing the pressure on the sealing cover 18 to exceed the threshold for a while, the slide bar 22 will first contact the pressure bag 25, and the pressure bag 25 needs to discharge the internal air into the storage box 24, so that the slide bar 22 cannot contact the trigger rod 26 at the first time. Only when the sealing cover 18 is continuously subjected to stable high pressure, there will be enough time for the slide bar 22 to squeeze the trigger rod 26.

[0049] like Figures 6 to 8 As shown, the storage box 24 and the pressure capsule 25 are both arranged in an annular shape and surround the outside of the trigger rod 26. The inside of the storage box 24 is filled with liquid. A plurality of one-way communicating vessels are connected between the pressure capsule 25 and the storage box 24.

[0050] During operation, by filling with liquid, the liquid can not only provide a buffer to reduce the impact on the pressure bag 25, but also the storage box 24 and the pressure bag 25 are arranged in an annular shape, so that the trigger rod 26 does not contact the two, so that the two do not affect each other.

[0051] like Figures 6 to 8 As shown, the one-way communicating vessel is composed of two one-way valve assemblies, the diameters of the two one-way valves are different, and the diameter of the one-way valve transmitted from the storage box 24 to the pressure bag 25 is larger than the diameter of the one-way valve transmitted from the pressure bag 25 to the storage box 24;

[0052] When working, the two one-way valves with different diameters allow the pressure bag 25 to drain water into the storage box 24 more slowly and return water more quickly, further increasing the time required for the slide rod 22 to contact the trigger rod 26, thereby reducing false triggering.

[0053] When working, by redesigning the shape of the filter screen cover 6, the filter screen cover 6 is designed to be arched in the center and the edges around it. When the solution passes through the filter screen cover 6 from top to bottom, the filter screen cover 6 with the raised center will diffuse the concentrated solution to the surrounding areas. Since the edges around the filter screen cover 6 are also arched upward, the solution can be well held. In this way, the solution from top to bottom can pass through the entire filter screen cover 6 more evenly, reducing the concentration of metal sediment in the middle of the filter screen cover 6, which causes the subsequent solution to be unable to pass through the filter screen cover 6 smoothly. After collecting for a period of time, the separation component will open the bottom part of the filter screen cover 6. After opening, the filtered metal sediment will fall onto the guide plate 4 and be finally guided out. The solution of the removed sediment will eventually flow out from the bottom of the filter net 10 for collection. The overall process is fast, and the filter screen cover 6 can be quickly returned to the initial state, and the best effect of filtering metal sediment is always maintained without taking up too much time, thereby improving the efficiency of the overall filtering process.

[0054] By setting the sealing cover 18, the solution cannot pass through the sealing cover 18, so that the solution from top to bottom will give a certain impact force to the filter screen cover 6. Under the impact and the cooperation of the telescopic sleeve 17, the slide bar 22 and the first spring 23, the entire filter screen cover 6 can fluctuate up and down. Under the fluctuating effect, the filtered metal sediment will be spread more evenly on the concave part of the entire filter screen cover 6, reducing the problem of the filtering process being affected;

[0055] The thickness of the movable mesh plate 13 is less than that of the supporting mesh plate 12, and the thickness difference is specifically reflected on the inner wall. Therefore, from the inside of the filter screen cover 6, there is a certain height difference between the movable mesh plate 13 and the supporting mesh plate 12. In this way, under the ups and downs of the entire filter screen cover 6, the metal sediment is more likely to remain above the movable mesh plate 13. In this way, when the pulling component pulls the steel cable 15, the movable mesh plate 13 can be pulled downward. In this process, the solution irrigation is stopped from the top and replaced with clean water irrigation. This not only allows the ups and downs of the entire filter screen cover 6 to continue, but also because the solution is rich in strong alkaline substances, irregular cleaning of the filter screen cover 6 will cause a decrease in service life. At the same time, with the shaking caused by gravity and ups and downs, the metal sediment on the movable mesh plate 13 can be moved to the guide plate 4, and finally guided to the outside of the collection cover 1. Then the pulling component is closed, and under the action of the spring damping hinge, the movable mesh plate 13 returns to its position, and with the adsorption effect of the magnetic buckle 14, the connection is ensured to be firm.

[0056] The reel 21 is driven to rotate by the reduction motor 20, so that the three steel cables 15 are reeled outside the reel 21, thereby pulling the movable mesh plates 13 at the same time, so that the three movable mesh plates 13 are unfolded downward, so that the metal sediment on the upper part can be discharged smoothly.

[0057] Since the volatilization of chemical reagents such as sodium hydroxide and sodium sulfide may have an impact on the human body, the top of the filter tank 3 is sealed by the upper cover 2, and the collection cover 1, which is wide at the top and narrow at the bottom, can well concentrate the solution toward the top of the sealing cover 18, and the bottom of the filter tank 3 is received by the sealed container;

[0058] The connection between the guide plate 4 and the outside is controlled by the lifting of the valve 5. When the sediment needs to be discharged, the valve 5 is opened to discharge the sediment. After the valve 5 is closed, a sealed space is formed in the filter tank 3 to reduce the volatilization of the solution.

[0059] The setting of the diverter plate 7 allows the solution from top to bottom to be divided into two groups, one of which flows down normally along the gap of the diverter plate 7, and the other diffuses outward, so that the filtered sediment will be gathered to the bottom of the filter screen cover 6 from two directions. At the same time, with the setting of the raised inner wall of the supporting mesh plate 12, during the ups and downs of the filter screen cover 6, most of the sediment will eventually move toward the moving mesh plate 13 due to the raised center of the supporting mesh plate 12, ensuring that a large amount of sediment will be transferred to the moving mesh plate 13, helping the sediment to be transferred smoothly;

[0060] In order to optimize the control system of the entire device, a trigger rod 26 is provided. During the entire sediment filtering process, the reduction motor 20 will not start. When the solution becomes clean water, the clean water flow rate is increased to increase the force of pressing the sealing cover 18, so that the telescopic sleeve 17 is excessively pressed down, allowing the slide bar 22 to squeeze the trigger rod 26, thereby starting the reduction motor 20. In this way, the opening or closing of the movable mesh plate 13 can be controlled by the flow rate of the solution and the clean water introduced from above. When the pressing is over, the trigger rod 26 returns to its original position under the action of gravity, the reduction motor 20 is turned off, and the movable mesh plate 13 returns to its original position under the action of the spring damping hinge. This arrangement reduces the difficulty of operation. It is only necessary to control the flow rate of the solution and the flow rate of the clean water to complete the discharge of the sediment. In order to increase fault tolerance and reduce the opening of the mobile screen 13 during solution filtration, a storage box 24 and a pressure bag 25 are added. When there is a lot of sediment in the solution, causing the pressure on the sealing cover 18 to exceed the threshold for a while, the slide bar 22 will first contact the pressure bag 25, and the pressure bag 25 needs to discharge the internal air into the storage box 24, so that the slide bar 22 cannot contact the trigger rod 26 at the first time. Only when the sealing cover 18 is continuously and stably pressed at a high pressure, there will be enough time for the slide bar 22 to squeeze the trigger rod 26.

[0061] By filling the liquid, the liquid can not only provide a buffer to reduce the impact on the pressure bag 25, but also the storage box 24 and the pressure bag 25 are arranged in a ring shape, so that the trigger rod 26 does not contact the two, so that the two do not affect each other;

[0062] The two one-way valves of different diameters allow the pressure bag 25 to drain water into the storage box 24 more slowly and return water more quickly, further increasing the time required for the slide rod 22 to contact the trigger rod 26, thereby reducing false triggering.

[0063] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An antimony ingot hydrometallurgical filter, characterized in that: The filter tank (3) comprises a filter screen cover (6) provided at the middle of the inner side of the filter tank (3), the center and the edges of the filter screen cover (6) are arranged in an upwardly arched shape, the bottom of the filter tank (3) is arranged in an open shape, a filter screen (10) is fixedly connected to the bottom of the filter tank (3), a plurality of guide plates (4) penetrating to the inner side of the filter tank (3) are provided on the outer side of the filter tank (3), a separation component is provided on the outer side of the filter screen cover (6), the separation component is used to open the bottom of the filter screen cover (6), and a plurality of support seats (8) are fixedly connected to the bottom of the filter tank (3) near the edge; A straight rod (27) is fixedly connected to the middle of the bottom surface of the filter screen cover (6), a telescopic sleeve (17) is fixedly connected to the bottom of the straight rod (27), a sliding rod (22) is slidably connected to the bottom of the telescopic sleeve (17), a first spring (23) is fixedly connected between the sliding rod (22) and the telescopic sleeve (17), a top seat (9) is fixedly connected between the bottom of the sliding rod (22) and the filter screen (10), and a sealing cover (18) is fixedly connected above the top protrusion of the filter screen cover (6); The filter screen cover (6) is composed of an outermost maintenance ring net (11), a supporting mesh plate (12) and three movable mesh plates (13); one end of the movable mesh plate (13) close to the straight rod (27) is rotatably connected to the supporting mesh plate (12) via a spring damping hinge; the thickness of the movable mesh plate (13) is less than the thickness of the supporting mesh plate (12); the separation component comprises three steel cables (15); one end of the steel cables (15) is provided with a pulling component; and a magnetic buckle (14) is fixedly connected to the outer top of the movable mesh plate (13); A protective frame (16) is fixedly connected between the straight rod (27) and the telescopic sleeve (17), the pulling assembly comprises a reduction motor (20), a winding drum (21) is fixedly connected to the top of the reduction motor (20), and the three steel cables (15) all pass through the protective frame (16) and are fixedly connected to the outer side of the winding drum (21).

2. The antimony ingot hydrometallurgical filter according to claim 1, characterized in that: An upper cover (2) is fixedly connected to the top of the filter tank (3), and a collection cover (1) which is wide at the top and narrow at the bottom is fixedly connected to the middle of the upper cover (2).

3. The antimony ingot hydrometallurgical filter according to claim 2, characterized in that: The guide plate (4) is arranged at an angle, and three lifting valves (5) are arranged on the side wall of the filter tank (3). The guide plate (4) is adapted to the valves (5), and when the movable mesh plate (13) is opened, its bottom is in contact with the top surface of the guide plate (4).

4. The antimony ingot hydrometallurgical filter according to claim 3, characterized in that: Three diverter plates (7) are fixedly connected to the outer side of the sealing cover (18), and a ridge is fixedly connected to the inner wall of the supporting mesh plate (12), wherein the ridge is vertically aligned with the diverter plate (7).

5. The antimony ingot hydrometallurgical filter according to claim 4, characterized in that: A storage box (24) is fixedly connected to the bottom of the telescopic sleeve (17), a trigger rod (26) is connected to the bottom of the reduction motor (20), the trigger rod (26) passes through the storage box (24) and is located in the telescopic sleeve (17), a pressure bag (25) is fixedly connected to the bottom of the storage box (24), the pressure bag (25) is fixedly connected to the top of the sliding rod (22), and the pressure bag (25) and the storage box (24) are communicated with each other.

6. The antimony ingot hydrometallurgical filter according to claim 5, characterized in that: The storage box (24) and the pressure bag (25) are both arranged in an annular shape and surround the outside of the trigger rod (26); the inside of the storage box (24) is filled with liquid; and a plurality of groups of one-way communicating vessels are connected between the pressure bag (25) and the storage box (24).

7. The antimony ingot hydrometallurgical filter according to claim 6, characterized in that: The one-way communicating vessel comprises two one-way valve assemblies, the two one-way valves have different diameters, and the diameter of the one-way valve transmitted from the storage box (24) to the pressure bag (25) is larger than the diameter of the one-way valve transmitted from the pressure bag (25) to the storage box (24).

Images