Ruthenium powder recovery device for ruthenium-containing waste

Abstract

The invention relates to the field of noble metal filtration, in particular to a ruthenium powder recovery device for ruthenium-containing waste, which comprises a fixed seat, a barrel and a feeding pipe, the fixed seat is fixedly connected with a cylinder body; the cylinder body is communicated with a feeding pipe; the device further comprises a fixed plate, a telescopic sleeve, a ceramic filter cartridge, an elastic piece, an electromagnetic valve, a sliding plate, an electric control valve and a collecting hopper; a hollow fixing plate is fixedly connected in the cylinder body; telescopic sleeves are fixedly connected to the lower sides of the fixing plates; the lower side of the telescopic sleeve is connected with a ceramic filter cylinder; the lower side of the ceramic filter cartridge is connected with a corrosion-resistant elastic piece; an electromagnetic valve is fixedly connected in the elastic piece; the elastic piece is fixedly connected with a sliding plate, and the sliding plate is slidably connected with the barrel. The sliding plate is fixedly connected with a plurality of electric control valves; and the elastic piece is detachably connected with a collecting hopper. Through the linkage design of the ceramic filter cartridge and the sliding plate and in combination with the automatic drainage function of the electric control valve, continuous filtration of acid liquor and interception of ruthenium powder are realized, so that the production efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the field of precious metal filtration, and in particular to a ruthenium powder recovery device for ruthenium-containing waste materials. Background Art

[0002] Ruthenium is a rare and precious metal with important applications in electronics, chemicals, and medicine. However, the generation of ruthenium-containing waste is inevitable during industrial production. This waste often contains large amounts of ruthenium powder, which, if discarded directly, wastes resources and potentially pollutes the environment. Therefore, efficient and environmentally friendly recovery of ruthenium powder from ruthenium-containing waste has become a pressing technical challenge.

[0003] Currently, chemical precipitation, electrolysis, and filtration are the main methods for recovering ruthenium powder. Chemical precipitation offers a high recovery rate, but it is complex to operate, requires high reagent consumption, is prone to introducing impurities, and increases processing costs. Electrolysis, on the other hand, requires high equipment requirements, consumes high energy, and struggles with waste materials containing a high level of impurities. By comparison, filtration is more practical due to its ease of operation and low cost, but existing filtration devices still have numerous shortcomings. Traditional filtration devices are mostly static in design, and ruthenium powder easily clogs the filter pores, leading to a gradual decrease in filtration efficiency and even requiring frequent filter element replacement, impacting production efficiency. Furthermore, filtered ruthenium powder often adheres to the inner wall of the filter cartridge, making it difficult to completely remove. This not only reduces recovery rates but also potentially affects the reusability of the filter cartridge. Furthermore, existing devices are limited in functionality, performing only the filtration step. Subsequent cleaning and drying processes require additional equipment, increasing operational complexity and time costs. More importantly, the acidic liquid in ruthenium-containing waste easily emits harmful volatile gases, and traditional devices lack effective gas treatment capabilities, potentially posing a safety hazard 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, difficulty in cleaning, single function and safety hazards, which make it difficult to meet the needs of efficient and environmentally friendly recovery, the present invention provides a ruthenium powder recovery device for ruthenium-containing waste.

[0005] Technical solution: A ruthenium powder recovery device for ruthenium-containing waste, comprising a fixed seat, a cylinder and a feed pipe; the fixed seat 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 member, a solenoid valve, a sliding plate, an electric control valve and a collection bucket; a hollow fixed plate is fixedly connected to the cylinder; the lower side of the fixed plate is fixedly connected to the telescopic sleeve; the lower side of the telescopic sleeve is connected to the ceramic filter cartridge; the lower side of the ceramic filter cartridge is connected to a corrosion-resistant elastic member; the solenoid valve is fixedly connected to the elastic member; the sliding plate is fixedly connected to the elastic member, and the sliding plate is slidably connected to the cylinder; the sliding plate is fixedly connected to a plurality of electric control valves; the elastic member is detachably connected to the collection bucket.

[0006] Further description, it also includes a rotating plate; the cylinder is rotatably connected to the rotating plate; the ceramic filter cartridge is fixed with two fixing rings; the telescopic sleeve is fixed with a disassembly ring, and the disassembly ring is detachably connected to the corresponding fixing ring; the elastic member is fixed with another disassembly ring, and the disassembly ring is detachably connected to the corresponding fixing ring.

[0007] Further explanation: the telescopic sleeve is made of fluororubber.

[0008] Further description: the upper side of the sliding plate is arranged with the middle being low and the surrounding areas being high.

[0009] Further explanation: a wear-resistant sealing ring is provided between the sliding plate and the inner wall of the cylinder.

[0010] Further description: the cylinder is made of transparent glass.

[0011] Further explanation, it also includes a water inlet pipe and a filter screen; the cylinder is connected to the water inlet pipe; a water outlet hole is opened at the bottom of the collecting bucket; the collecting bucket is fixedly connected to the filter screen, and the filter screen is located in the water outlet hole.

[0012] Further explanation, it also includes a drying cylinder and a connecting pipe; the drying cylinder is fixedly connected to the lower side of the elastic member; and the drying cylinder is fixedly connected to the connecting pipe.

[0013] Further explanation: the drying cylinder is made of heat-insulating material.

[0014] Further description, 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 realizes continuous filtration of acid solution and interception of ruthenium powder through the linkage design of the ceramic filter cartridge and the sliding plate, combined with the automatic drainage function of the electric control valve, thereby significantly improving production efficiency; The coordinated vibration of the telescopic sleeve and the elastic part prevents the ruthenium powder from compacting; the backwash cleaning function of the water inlet pipe and the filter screen effectively solves the problem of filter cartridge blockage and completes the rinsing and collection of ruthenium powder at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a ruthenium powder recovery device for ruthenium-containing waste disclosed in the present invention; Figure 2 It is a cross-sectional view of the cylinder disclosed in the present invention; Figure 3 It is a combined cross-sectional view of the cylinder, telescopic sleeve, ceramic filter cartridge, and elastic member disclosed in the present invention; Figure 4 This is a schematic diagram of the combined structure of the cylinder, collecting hopper, and drying cylinder disclosed in the present invention; Figure 5 The figure is a schematic diagram of the combined structure of the ceramic filter cartridge, the fixing ring and the disassembly ring disclosed in the present invention.

[0017] In the above drawings: 1-fixed seat, 2-cylinder, 3-feed pipe, 101-fixed plate, 102-telescopic sleeve, 103-ceramic filter cartridge, 104-elastic part, 105-solenoid valve, 106-sliding plate, 107-electrically controlled valve, 108-collecting bucket, 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 DESCRIPTION

[0018] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0019] Example 1, a ruthenium powder recovery device for ruthenium-containing waste, such as Figure 1-Figure 5 As shown, it includes a fixing base 1, a cylinder 2 and a feed pipe 3; the fixing base 1 is fixedly connected to the cylinder 2; the cylinder 2 is connected to the feed pipe 3; It also includes a fixed plate 101, a telescopic sleeve 102, a ceramic filter cartridge 103, an elastic member 104, a solenoid valve 105, a sliding plate 106, an electric control valve 107 and a collecting bucket 108; a hollow fixed plate 101 is fixedly connected to the cylinder body 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 member 104 is connected to the lower side of the ceramic filter cartridge 103, the upper and lower ends of the elastic member 104 are hard structures, and the middle part is made of fluororubber; a solenoid valve 105 is fixedly connected to the elastic member 104; the elastic member 104 is fixedly connected to the sliding plate 106, and the sliding plate 106 is slidably connected to the cylinder body 2; the sliding plate 106 is fixedly connected to two electric control valves 107; the elastic member 104 is detachably connected to the collecting bucket 108.

[0020] It also includes a rotating plate 109; the cylinder 2 is rotatably connected to the rotating plate 109; the ceramic filter cartridge 103 is fixedly connected to two upper and lower fixed rings 1031; the telescopic sleeve 102 is fixedly connected to a disassembly ring 1041, and the disassembly ring 1041 is connected to the corresponding fixed ring 1031 by a snap connection; the elastic member 104 is fixedly connected to another disassembly ring 1041, and the disassembly ring 1041 is connected to the corresponding fixed ring 1031 by a snap connection.

[0021] The telescopic sleeve 102 is made of fluororubber and has good elasticity and acid resistance.

[0022] The upper side of the sliding plate 106 is set to be low in the middle and high around, and the acid liquid naturally gathers to the middle due to gravity, thereby improving the discharge efficiency of the acid liquid through the electric control valve 107 and effectively reducing the amount of acid liquid remaining on the upper side of the sliding plate 106.

[0023] 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 the acid from leaking from the gap and improve the wear resistance of the sliding plate 106, thereby extending its service life.

[0024] The cylinder 2 is made of transparent glass, which is convenient for observing the filtering status of the acid solution.

[0025] During operation, first connect the external collection tube to the bottom of the cylinder 2, and the operator injects the acid containing ruthenium powder into the ceramic filter cartridge 103 through the feed pipe 3. The acid seeps through the microfiltration pores of the ceramic filter cartridge 103 to the cavity between the outside of the filter cartridge and the inner wall of the cylinder 2, while the ruthenium powder is trapped inside the filter cartridge. As the filtration proceeds, the acid level in the cavity gradually rises, and the generated liquid pressure pushes the sliding plate 106 to move downward, driving the telescopic sleeve 102, the ceramic filter cartridge 103 and the elastic member 104 to move downward as a whole. In this process, the telescopic sleeve 102 and the elastic member 104 undergo elastic stretching deformation, while the ceramic filter cartridge 103 remains rigid and does not deform. When the acid level in the cylinder 2 reaches a predetermined height, the electric control valve 107 opens, and the acid in the cavity is discharged through the valve under the action of gravity. It is discharged to an external collection pipe. At the same time, the elastic restoring force of the telescopic sleeve 102 and the elastic member 104 causes the ceramic filter cartridge 103 to vibrate up and down. This vibration not only promotes the further filtration of the acid, but also prevents the ruthenium powder from compacting in the filter cartridge. After the oscillation and drainage are completed, the electric control valve 107 is closed, and the remaining acid continues to filter and seep out until the acid in the ceramic filter cartridge 103 is completely discharged. After the electric control valve 107 is opened again to drain the residual acid, the solenoid valve 105 is opened to allow the ruthenium powder to fall into the collection bucket 108. This design allows the operator to remove the collection bucket 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 the filtration efficiency and production benefits. The ceramic filter cartridge 103 needs to be maintained or replaced after long-term use. Therefore, the operator regularly 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 fixed ring 1031, and then pushes the disassembly ring 1041 on the elastic member 104 downward to separate the disassembly ring 1041 from the corresponding fixed ring 1031. The operator then takes out the ceramic filter cartridge 103 and the two fixed rings 1031 together, and maintains or replaces the ceramic filter cartridge 103 quickly and conveniently.

[0026] Example 2, based on Example 1, Figure 2-Figure 4 As 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; a water outlet hole 1081 is opened at the bottom of the collecting bucket 108; the collecting bucket 108 is fixedly connected to the filter screen 202, and the filter screen 202 is located in the water outlet hole 1081.

[0027] In order to solve the problem of cleaning the wet ruthenium powder after the filtration is completed, an external water pump is connected to the water inlet pipe 201 for cleaning. The specific operation is as follows: When the ceramic filter cartridge 103 completes the filtration, the wet ruthenium powder is difficult to fall naturally through the solenoid valve 105 due to its adhesiveness, and will adhere to the inner wall of the ceramic filter cartridge 103 and cause blockage. At this time, the external water pump is started, and clean water is injected into the area between the outside of the ceramic filter cartridge 103 and the inside of the cylinder 2 through the water inlet pipe 201. The clean water penetrates the ceramic filter cartridge 103 and enters the inside, achieving a dual role: on the one hand, it rinses the residual acid solution, and on the other hand, it washes off the attached ruthenium powder.

[0028] After rinsing is completed, the solenoid valve 105 is opened, and the ruthenium powder and the rinsing liquid flow into the collection bucket 108 together. During the collection process, the rinsing liquid is discharged from the water outlet 1081 through the filter 202, while the clean ruthenium powder remains in the collection bucket 108 waiting for collection. This not only realizes the cleaning and collection of the ruthenium powder, but also completes the backflushing cleaning of the ceramic filter cartridge 103, effectively solving the blockage problem and simplifying the subsequent processes.

[0029] Example 3, based on Example 2, Figure 2-Figure 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 .

[0030] The drying cylinder 204 is made of heat-insulating material, which effectively blocks the internal heat from being transferred outward, prevents the heat from affecting the acid liquid flowing through, and prevents the acid liquid from excessively volatilizing due to excessive temperature, thereby ensuring that the acid liquid can be collected stably and efficiently.

[0031] The cylinder 2 is connected to the suction pipe 203 , and the suction pipe 203 is fixedly connected to the fixing plate 101 .

[0032] The external pump is connected to the connecting pipe 205. When the ruthenium powder flows from the ceramic filter cartridge 103 into the collecting bucket 108 along with the clean water, the remaining wet ruthenium powder still needs to be dried due to the filtration of the clean water, which increases the complexity of the process. To solve this problem, after the ruthenium powder enters the collecting bucket 108, the external pump is started to pass hot air through the connecting pipe 205 into the drying cavity formed by the outside of the collecting bucket 108 and the inside of the drying cylinder 204. The collecting bucket 108 is heated by the principle of heat conduction, thereby directly drying the internal wet ruthenium powder. The wet ruthenium powder is dried, which significantly improves the overall processing efficiency. In addition, during the filtration process, the acid liquid containing ruthenium powder will volatilize hydrochloric acid gas. The accumulated acid gas may cause the pressure to rise, posing a safety risk. For this reason, an external air pump is connected through the suction tube 203 to continuously remove the acid gas, so that the air pressure outside the ceramic filter cartridge 103 is maintained lower than that inside. This ensures operational safety on the one hand, and the negative pressure environment formed on the other hand promotes the efficient filtration of the acid liquid, further optimizing the overall process effect.

[0033] While the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that numerous other embodiments can be devised without departing from the scope of the invention. Accordingly, the scope of the present invention should be limited only by the claims appended hereto.

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 cylinder (2) is connected to the feed pipe (3); the device is characterized by: The invention also includes a fixed plate (101), a telescopic sleeve (102), a ceramic filter cartridge (103), an elastic member (104), a solenoid valve (105), a sliding plate (106), an electric control valve (107) and a collecting bucket (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 member (104) is connected to the lower side of the ceramic filter cartridge (103); a solenoid valve (105) is fixedly connected inside the elastic member (104); a sliding plate (106) is fixedly connected to the elastic member (104), and the sliding plate (106) is slidably connected to the cylinder (2); a plurality of electric control valves (107) are fixedly connected to the sliding plate (106); and the elastic member (104) is detachably connected to the collecting bucket (108).

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

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

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

5. The ruthenium powder recovery device for ruthenium-containing waste according to claim 1, characterized in that: A wear-resistant sealing ring is provided between the sliding plate (106) and the inner wall of the cylinder (2).

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

7. The ruthenium powder recovery device for ruthenium-containing waste according to claim 1, characterized in that: It also includes a water inlet pipe (201) and a filter screen (202); the cylinder (2) is connected to the water inlet pipe (201); a water outlet hole (1081) is provided at the bottom of the collecting bucket (108); the collecting bucket (108) is fixedly connected to the filter screen (202), and the filter screen (202) is located in the water outlet hole (1081).

8. The ruthenium powder recovery device for ruthenium-containing waste according to claim 1, characterized in that: 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); and the drying cylinder (204) is fixedly connected to the connecting pipe (205).

9. The ruthenium powder recovery device for ruthenium-containing waste according to claim 8, characterized in that: The drying cylinder (204) is made of heat-insulating material.

10. The ruthenium powder recovery device for ruthenium-containing waste according to claim 1, characterized in that: 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 fixed plate (101).

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