A ruthenium powder recovery device for ruthenium-containing waste

Abstract

This invention relates to the field of precious metal filtration, and more particularly to a ruthenium powder recovery device for ruthenium-containing waste, comprising a fixed base, a cylindrical body, and a feed pipe; the fixed base is fixedly connected to the cylindrical body; the cylindrical body is connected to the feed pipe; it also includes a fixed plate, a telescopic sleeve, a ceramic filter cartridge, an elastic element, a solenoid valve, a sliding plate, an electrically controlled valve, and a collection hopper; a hollow fixed plate is fixedly connected to the cylindrical body; a telescopic sleeve is fixedly connected to the lower side of the fixed plate; a ceramic filter cartridge is connected to the lower side of the telescopic sleeve; a corrosion-resistant elastic element is connected to the lower side of the ceramic filter cartridge; a solenoid valve is fixedly connected inside the elastic element; a sliding plate is fixedly connected to the elastic element and slidably connected to the cylindrical body; several electrically controlled valves are fixedly connected to the sliding plate; and a collection hopper is detachably connected to the elastic element. This invention, through the linkage design of the ceramic filter cartridge and the sliding plate, combined with the automatic drainage function of the electrically controlled valve, achieves continuous acid filtration and ruthenium powder retention, thereby significantly improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of precious metal filtration, and more particularly to a ruthenium powder recovery device for ruthenium-containing waste. Background Technology

[0002] Ruthenium is a rare and precious metal with significant applications in electronics, chemicals, and pharmaceuticals. However, the generation of ruthenium-containing waste is unavoidable in industrial production processes. This waste typically contains large amounts of ruthenium powder, and direct disposal would be wasteful of resources and could pollute the environment. Therefore, efficiently and environmentally friendly recovery of ruthenium powder from ruthenium-containing waste has become an urgent technical challenge.

[0003] Currently, ruthenium powder recovery mainly employs chemical precipitation, electrolysis, and filtration. Chemical precipitation offers high recovery rates but is complex to operate, consumes large amounts of reagents, easily introduces impurities, and increases processing costs. Electrolysis requires sophisticated equipment, consumes a lot of energy, and is difficult to handle waste containing many impurities. In contrast, filtration is more practical due to its simple operation and lower cost, but existing filtration devices still have many shortcomings. Traditional filtration devices are mostly statically designed, and ruthenium powder easily clogs the filter pores, leading to a gradual decrease in filtration efficiency and even requiring frequent filter replacements, affecting production efficiency. Furthermore, filtered ruthenium powder often adheres to the inner wall of the filter cartridge, making it difficult to completely remove, which not only reduces the recovery rate but may also affect the reusability of the filter cartridge. Simultaneously, existing devices are functionally limited, only completing the filtration step; subsequent cleaning and drying processes require additional equipment, increasing operational complexity and time costs. More importantly, the acidic liquids in ruthenium-containing waste readily release harmful gases, and traditional devices lack effective gas treatment capabilities, potentially posing safety hazards to operators and the environment. Summary of the Invention

[0004] In order to overcome the shortcomings of existing ruthenium powder recovery technologies, such as low filtration efficiency, difficult cleaning, limited functionality, and safety hazards, which make it difficult to meet the requirements of efficient and environmentally friendly recycling, this invention provides a ruthenium powder recovery device for ruthenium-containing waste.

[0005] Technical Solution: A ruthenium powder recovery device for ruthenium-containing waste includes a fixed base, a cylinder, and a feed pipe; the fixed base is fixedly connected to the cylinder; the cylinder is connected to the feed pipe; it also includes a fixed plate, a telescopic sleeve, a ceramic filter cartridge, an elastic element, a solenoid valve, a sliding plate, an electrically controlled valve, and a collection hopper; a hollow fixed plate is fixedly connected inside the cylinder; a telescopic sleeve is fixedly connected to the lower side of the fixed plate; a ceramic filter cartridge is connected to the lower side of the telescopic sleeve; a corrosion-resistant elastic element is connected to the lower side of the ceramic filter cartridge; a solenoid valve is fixedly connected inside the elastic element; a sliding plate is fixedly connected to the elastic element and slidably connected to the cylinder; several electrically controlled valves are fixedly connected to the sliding plate; and a collection hopper is detachably connected to the elastic element.

[0006] To further explain, it also includes a rotating plate; the cylinder is rotatably connected to the rotating plate; the ceramic filter cartridge is fixedly connected to two fixing rings; the telescopic sleeve is fixedly connected to a disassembly ring, and the disassembly ring is detachably connected to the corresponding fixing ring; the elastic element is fixedly connected to another disassembly ring, and the disassembly ring is detachably connected to the corresponding fixing ring.

[0007] To further clarify, the telescopic sleeve is made of fluororubber.

[0008] To further explain, the upper side of the sliding plate is designed to be lower in the middle and higher around the edges.

[0009] To further explain, a wear-resistant sealing ring is provided between the sliding plate and the inner wall of the cylinder.

[0010] To further clarify, the cylinder is made of transparent glass.

[0011] Further explanation: It also includes an inlet pipe and a filter screen; the cylinder is connected to the inlet pipe; the bottom of the collection hopper has an outlet hole; the collection hopper is fixedly connected to a filter screen, and the filter screen is located inside the outlet hole.

[0012] To further explain, it also includes a drying cylinder and a connecting pipe; the drying cylinder is fixedly connected to the lower side of the elastic element; the connecting pipe is fixedly connected to the drying cylinder.

[0013] To further clarify, the drying cylinder is made of heat-insulating material.

[0014] To further explain, it also includes a suction pipe; the cylinder is connected to the suction pipe, and the suction pipe is fixedly connected to the fixed plate.

[0015] The beneficial effects of the present invention are as follows: The present invention achieves continuous acid filtration and ruthenium powder interception through the linkage design of ceramic filter cartridge and sliding plate, combined with the automatic liquid discharge function of electric control valve, thereby significantly improving production efficiency;

[0016] The coordinated vibration of the telescopic sleeve and the elastic element prevents ruthenium powder from caking; the backwashing function of the water inlet pipe and the filter screen effectively solves the problem of filter cartridge blockage, while completing the rinsing and collection of ruthenium powder. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the ruthenium powder recovery device for ruthenium-containing waste disclosed in this invention;

[0018] Figure 2 This is a cross-sectional view of the cylindrical body disclosed in this invention;

[0019] Figure 3 This is a combined cross-sectional view of the cylindrical body, telescopic sleeve, ceramic filter cylinder, and elastic element disclosed in this invention.

[0020] Figure 4 This is a schematic diagram of the combined structure of the cylinder, collecting hopper, and drying cylinder disclosed in this invention.

[0021] Figure 5 This is a schematic diagram of the combined structure of the ceramic filter cartridge, fixing ring, and disassembly ring disclosed in this invention.

[0022] In the attached diagrams: 1-fixed base, 2-cylinder body, 3-feed pipe, 101-fixed plate, 102-telescopic sleeve, 103-ceramic filter cylinder, 104-elastic element, 105-solenoid valve, 106-sliding plate, 107-electric control valve, 108-collecting hopper, 109-rotating plate, 201-water inlet pipe, 202-filter screen, 203-suction pipe, 204-drying cylinder, 205-connecting pipe, 1031-fixed ring, 1041-disassembly ring, 1081-water outlet. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions herein are used to explain the present invention, but are not intended to limit the present invention.

[0024] Example 1: A ruthenium powder recovery device for ruthenium-containing waste, such as... Figures 1-5 As shown, it includes a fixed base 1, a cylinder 2 and a feed pipe 3; the fixed base 1 is fixedly connected to the cylinder 2; the cylinder 2 is connected to the feed pipe 3;

[0025] It also includes a fixed plate 101, a telescopic sleeve 102, a ceramic filter cartridge 103, an elastic element 104, a solenoid valve 105, a sliding plate 106, an electrically controlled valve 107, and a collection hopper 108; a hollow fixed plate 101 is fixedly connected inside the cylinder 2; a telescopic sleeve 102 is fixedly connected to the lower side of the fixed plate 101; a ceramic filter cartridge 103 is connected to the lower side of the telescopic sleeve 102; a corrosion-resistant elastic element 104 is connected to the lower side of the ceramic filter cartridge 103, the upper and lower ends of the elastic element 104 are rigid structures, and the middle part is made of fluororubber; a solenoid valve 105 is fixedly connected inside the elastic element 104; a sliding plate 106 is fixedly connected to the elastic element 104, and the sliding plate 106 is slidably connected to the cylinder 2; two electrically controlled valves 107 are fixedly connected to the sliding plate 106; and the collection hopper 108 is detachably connected to the elastic element 104.

[0026] It also includes a rotating plate 109; the rotating plate 109 is rotatably connected to the cylinder 2; the ceramic filter cartridge 103 is fixedly connected to two vertically distributed fixing rings 1031; the telescopic sleeve 102 is fixedly connected to a disassembly ring 1041, and the disassembly ring 1041 is connected to the corresponding fixing ring 1031 by a snap fastener; the elastic element 104 is fixedly connected to another disassembly ring 1041, and the disassembly ring 1041 is connected to the corresponding fixing ring 1031 by a snap fastener.

[0027] The telescopic sleeve 102 is made of fluororubber, which has good elasticity and acid resistance.

[0028] The upper side of the sliding plate 106 is set with a lower center and a higher perimeter. The acid solution naturally gathers in the center by gravity, thereby improving the discharge efficiency of the acid solution through the electrically controlled valve 107 and effectively reducing the amount of acid solution remaining on the upper side of the sliding plate 106.

[0029] A wear-resistant sealing ring is provided between the sliding plate 106 and the inner wall of the cylinder 2 to improve the sealing performance of the sliding plate 106 when it slides inside the cylinder 2. The wear-resistant sealing ring can prevent acid from seeping out from the gap and improve the wear resistance of the sliding plate 106, thus extending its service life.

[0030] The cylinder 2 is made of transparent glass, which makes it easy to observe the filtration status of the acid solution.

[0031] During operation, the external collection pipe is first connected to the bottom of the cylinder 2. The operator injects acid containing ruthenium powder into the ceramic filter cartridge 103 through the feed pipe 3. The acid seeps out through the microfiltration pores of the ceramic filter cartridge 103 into the cavity between the outer side of the filter cartridge and the inner wall of the cylinder 2, while the ruthenium powder is trapped inside the filter cartridge. As filtration proceeds, the acid level in the cavity gradually rises, and the resulting hydraulic pressure pushes the sliding plate 106 downward, causing the telescopic sleeve 102, the ceramic filter cartridge 103, and the elastic element 104 to move downward as a whole. During this process, the telescopic sleeve 102 and the elastic element 104 undergo elastic tensile deformation, while the ceramic filter cartridge 103 remains rigid and does not deform. When the acid level in the cylinder 2 reaches the predetermined height, the electric control valve 107 opens, and the acid in the cavity flows through the valve under the action of gravity. The acid is discharged into an external collection pipe. Simultaneously, the elastic restoring force of the telescopic sleeve 102 and the elastic element 104 causes the ceramic filter cartridge 103 to vibrate up and down. This vibration not only promotes further filtration of the acid but also prevents the ruthenium powder from caking inside the filter cartridge. After the oscillation and drainage are completed, the solenoid valve 107 is closed, and the remaining acid continues to be filtered and seeped out until the acid in the ceramic filter cartridge 103 is completely discharged. After the solenoid valve 107 is reopened to drain the remaining acid, the solenoid valve 105 is opened to allow the ruthenium powder to fall into the collection hopper 108. This design allows the operator to remove the collection hopper 108 and take out the ruthenium powder at any time without interrupting the filtration process. At the same time, new acid can continue to be injected into the ceramic filter cartridge 103 for the next round of filtration, realizing continuous operation and significantly improving filtration efficiency and production benefits. After long-term use, the ceramic filter cartridge 103 requires maintenance or replacement. Therefore, the operator periodically opens the rotating plate 109, pulls up the disassembly ring 1041 on the telescopic sleeve 102 to separate the disassembly ring 1041 from the corresponding fixing ring 1031, and then pushes down the disassembly ring 1041 on the elastic member 104 to separate the disassembly ring 1041 from the corresponding fixing ring 1031. Thus, the operator can remove the ceramic filter cartridge 103 and the two fixing rings 1031 together for maintenance or replacement, which is convenient and quick.

[0032] Example 2, based on Example 1, such as Figures 2-4As shown, it also includes a water inlet pipe 201 and a filter screen 202; the cylinder 2 is connected to the water inlet pipe 201; the bottom of the collection hopper 108 is provided with a water outlet hole 1081; the collection hopper 108 is fixedly connected to the filter screen 202, and the filter screen 202 is located inside the water outlet hole 1081.

[0033] To address the issue of cleaning damp ruthenium powder after filtration, an external water pump connected to the inlet pipe 201 is used for cleaning. The specific operation is as follows: After the ceramic filter cartridge 103 completes filtration, the damp ruthenium powder, due to its adhesive properties, is difficult to fall naturally through the solenoid valve 105 and will adhere to the inner wall of the ceramic filter cartridge 103, causing blockage. At this time, the external water pump is started, and clean water is injected into the area between the outer side of the ceramic filter cartridge 103 and the inner side of the cartridge 2 through the inlet pipe 201. The clean water penetrates the ceramic filter cartridge 103 and enters the inner side, achieving a dual effect: on the one hand, rinsing the residual acid, and on the other hand, washing off the attached ruthenium powder.

[0034] After rinsing, the solenoid valve 105 is opened, and the ruthenium powder and rinsing liquid flow into the collection hopper 108. During the collection process, the rinsing liquid is discharged from the outlet hole 1081 through the filter screen 202, while the clean ruthenium powder is retained in the collection hopper 108 for collection. This not only achieves the cleaning and collection of ruthenium powder, but also completes the backwashing and cleaning of the ceramic filter cartridge 103, effectively solving the clogging problem and simplifying the subsequent processes.

[0035] Example 3, based on Example 2, such as Figures 2-4 As shown, it also includes a drying cylinder 204 and a connecting pipe 205; the drying cylinder 204 is fixedly connected to the lower side of the elastic member 104; the drying cylinder 204 is fixedly connected to the connecting pipe 205.

[0036] The drying cylinder 204 is made of heat-insulating material, which effectively blocks the transfer of internal heat to the outside, avoids the heat affecting the acid flowing through it, and prevents the acid from evaporating excessively due to high temperature, thereby ensuring that the acid can be collected stably and efficiently.

[0037] It also includes a suction pipe 203; the cylinder 2 is connected to the suction pipe 203, and the suction pipe 203 is fixedly connected to the fixing plate 101.

[0038] Connecting the external pump to the connecting pipe 205, after ruthenium powder flows into the collection hopper 108 from the ceramic filter cartridge 103 along with clean water, the residual damp ruthenium powder after the water has filtered out still requires additional drying, increasing the complexity of the process. To solve this problem, the external pump is started after the ruthenium powder enters the collection hopper 108, and hot air is introduced through the connecting pipe 205 into the drying cavity formed by the outside of the collection hopper 108 and the inside of the drying cylinder 204. The collection hopper 108 is heated using the principle of heat conduction, thereby directly drying the internal dampness. The drying process of wet ruthenium powder significantly improves the overall processing efficiency. In addition, during the filtration process, the acid solution containing ruthenium powder will volatilize hydrochloric acid gas. The accumulation of acidic gas may cause pressure rise and pose a safety risk. To address this, an external air pump is connected to the suction pipe 203 to continuously remove the acidic gas, keeping the outer side of the ceramic filter cartridge 103 at a lower pressure than the inner side. This ensures operational safety and, on the other hand, the negative pressure environment promotes efficient filtration of the acid solution, further optimizing the overall process effect.

[0039] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of the invention. Therefore, the scope of the invention should be limited only by the appended claims.

Claims

1. A ruthenium powder recovery device for ruthenium-containing waste, comprising a fixed base (1), a cylinder (2), and a feed pipe (3); the fixed base (1) is fixedly connected to the cylinder (2); the feed pipe (3) is connected to the cylinder (2); characterized in that: It also includes a fixed plate (101), a telescopic sleeve (102), a ceramic filter cartridge (103), an elastic element (104), a solenoid valve (105), a sliding plate (106), an electrically controlled valve (107), and a collection hopper (108); a hollow fixed plate (101) is fixedly connected inside the cylinder (2); a telescopic sleeve (102) is fixedly connected to the lower side of the fixed plate (101); a ceramic filter cartridge (103) is connected to the lower side of the telescopic sleeve (102); a corrosion-resistant elastic element (104) is connected to the lower side of the ceramic filter cartridge (103); a solenoid valve (105) is fixedly connected inside the elastic element (104); a sliding plate (106) is fixedly connected to the elastic element (104), and the sliding plate (106) is slidably connected to the cylinder (2); several electrically controlled valves (107) are fixedly connected to the sliding plate (106); and the collection hopper (108) is detachably connected to the elastic element (104). A wear-resistant sealing ring is provided between the sliding plate (106) and the inner wall of the cylinder (2); It also includes an inlet pipe (201) and a filter screen (202); the cylinder (2) is connected to the inlet pipe (201), and the inlet pipe (201) is arranged near the lower side of the fixed plate (101); the bottom of the collection hopper (108) is provided with a water outlet hole (1081); the collection hopper (108) is fixedly connected to the filter screen (202), and the filter screen (202) is located inside the water outlet hole (1081); It also includes a drying cylinder (204) and a connecting pipe (205); the drying cylinder (204) is fixedly connected to the lower side of the elastic element (104); the connecting pipe (205) is fixedly connected to the drying cylinder (204); hot air is introduced into the drying cavity formed by the outside of the collection hopper (108) and the inside of the drying cylinder (204) through the connecting pipe (205); It also includes a suction pipe (203); the cylinder (2) is connected to the suction pipe (203), and the suction pipe (203) is fixed to the fixed plate (101); an external air pump is connected through the suction pipe (203) to continuously remove acidic gas, so that the outer side of the ceramic filter cartridge (103) is kept at a lower pressure than the inner side.

2. The ruthenium powder recovery device for ruthenium-containing waste according to claim 1, characterized in that: It also includes a rotating plate (109); the cylinder (2) is rotatably connected to the rotating plate (109); the ceramic filter cartridge (103) is fixed with two fixing rings (1031); the telescopic sleeve (102) is fixed with a disassembly ring (1041), and the disassembly ring (1041) is detachably connected to the corresponding fixing ring (1031); the elastic element (104) is fixed with another disassembly ring (1041), and the disassembly ring (1041) is detachably connected to the corresponding fixing ring (1031).

3. A ruthenium powder recovery device for ruthenium-containing waste according to claim 1, characterized in that: The telescopic sleeve (102) is made of fluororubber.

4. A ruthenium powder recovery device for ruthenium-containing waste according to claim 1, characterized in that: The upper side of the sliding plate (106) is set with a low center and a high perimeter.

5. A ruthenium powder recovery device for ruthenium-containing waste according to claim 1, characterized in that: The cylinder (2) is made of transparent glass.

6. A ruthenium powder recovery device for ruthenium-containing waste according to claim 1, characterized in that: The drying cylinder (204) is made of heat-insulating material.

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