Automatic control device and method for cyclone electrolytic powder

Abstract

This invention relates to an automatic control device and method for cyclone electrolysis of powder. It solves the technical problems of low production efficiency in existing cyclone electrolysis systems. The device includes a powder circulation tank equipped with a liquid inlet assembly. One side of the powder circulation tank is connected to a cyclone electrolysis mechanism via a powder circulation mechanism. The cyclone electrolysis mechanism is equipped with an intelligent power distribution mechanism, and a backwashing mechanism is provided between the cyclone electrolysis mechanism and the powder circulation tank. The backwashing mechanism is equipped with a back-blowing assembly, and the cyclone electrolysis mechanism is connected to a low-level tank via the backwashing mechanism. The low-level tank is connected to both the powder circulation tank and the copper-removed liquid tank via a filter press. The advantages are: multiple control methods operate in tandem; the circulating liquid flow rate, system electrolysis current, and backwash liquid pressure all employ single-loop PID + interlocking control. Precise PID control makes the circulating liquid flow rate, system electrolysis current, and backwash liquid pressure more stable, facilitating standardized production and reducing production costs.

Description

Technical Field

[0001] This invention belongs to the field of metallurgical technology, specifically relating to an automatic control device and method for cyclone electrolysis of powder. Background Technology

[0002] In hydrometallurgy, the traditional copper electrolysis workshop purification system's production process flow is as follows: vacuum evaporation-water cooling crystallization to produce crude copper sulfate, induced copper removal to remove copper and arsenic, antimony, and bismuth impurities, electrothermal evaporation to remove nickel, and the use of a remelting tank to create new solution. In the existing process, most of the copper removal is mainly completed by induced copper removal and electrowinning copper removal processes, producing a large amount of sponge copper slag and sponge copper plates that accumulate, restricting the production of the next process. In the existing cyclone electrolysis powder system, most operations are carried out manually, which affects production efficiency, and the operation process is frequent, complex, and prone to errors, and the labor cost is high, which is not conducive to standardized production. Furthermore, in the cyclone electrolysis powder system, processes such as liquid feeding, circulation, electrolysis, liquid discharge, backflushing, backwashing, pressure filtration, liquid replenishment, and post-copper removal liquid transportation are not interlocked with pump sets, valves, flow rate, liquid level, temperature, and pressure, which is not conducive to improving electrolysis efficiency and production organization and management. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned problems by providing an automatic control device for cyclone electrolysis of powders.

[0004] Another objective of this invention is to provide an automatic control method for cyclone electrolysis powder in response to the above-mentioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic control device for cyclone electrolysis of powder includes a powder circulation tank, on which a liquid inlet assembly is provided. One side of the powder circulation tank is connected to a cyclone electrolysis mechanism via a powder circulation mechanism. The cyclone electrolysis mechanism is equipped with an intelligent power distribution mechanism, and a backwashing mechanism is provided between the cyclone electrolysis mechanism and the powder circulation tank. The backwashing mechanism is equipped with a back-blowing assembly, and the cyclone electrolysis mechanism is connected to a low-level tank via the backwashing mechanism. The low-level tank is connected to the powder circulation tank and the copper-removed liquid tank via a filter press. The liquid inlet assembly facilitates the injection of the pre-copper-removed liquid into the powder circulation tank, and the powder... The body circulation mechanism can transport the pre-copper removal solution to the cyclone electrolysis mechanism and electrolyze it through the intelligent power distribution mechanism. After electrolysis, it is sequentially subjected to back-blowing and back-rinsing operations through the back-blowing assembly and back-rinsing mechanism. Back-blowing facilitates the removal of air bubbles on the electrode surface, reduces cell pressure, and improves electrolytic efficiency. Back-rinsing removes deposits in the cell and restores effective electrolytic capacity. After electrolysis, back-blowing, and back-rinsing circulation, the solution that meets the requirements is transferred to the low-level tank. The solution in the low-level tank is filtered and copper removal is performed by a filter press. When the copper removal solution meets the requirements, it is transferred to the subsequent process through the copper removal solution tank. When the copper removal solution does not meet the requirements, it continues to circulate and electrolyze through the powder circulation tank, improving production efficiency.

[0006] In the aforementioned automatic control device for cyclone electrolysis of powder, the powder circulation tank is equipped with a powder circulation tank level gauge, and the liquid inlet assembly includes a liquid inlet pipe. One end of the liquid inlet pipe is connected to the powder circulation tank, and the liquid inlet pipe is equipped with a pre-liquid inlet valve and a pre-liquid flow meter. A cooling circulation heat exchange assembly is provided on one side of the powder circulation tank. The powder circulation tank level gauge can detect the liquid level height of the copper stripping pre-liquid in the powder circulation tank. The liquid inlet pipe and the pre-liquid inlet valve facilitate the transfer of the copper stripping pre-liquid to the powder circulation tank. The pre-liquid flow meter can detect the flow rate of the copper stripping pre-liquid delivered to the powder circulation tank. The cooling circulation heat exchange assembly ensures a constant solution temperature, guarantees electrolysis efficiency, and improves equipment lifespan.

[0007] In the aforementioned automatic control device for cyclone electrolysis of powder, the powder circulation mechanism includes a powder circulation pump. One side of the powder circulation pump is connected to a powder circulation tank, and the other side of the powder circulation pump is connected to one end of the cyclone electrolysis mechanism via a circulation inlet pipe. The other end of the cyclone electrolysis mechanism is connected to the powder circulation tank via a circulation outlet pipe. The circulation inlet pipe is equipped with a circulation inlet valve and a circulation flow meter, and the circulation outlet pipe is equipped with a circulation outlet valve. The cooling circulation heat exchange assembly includes a plate heat exchanger, which is connected to a cooling circulation water system. The plate heat exchanger is connected to the powder circulation tank via its output end. The powder circulation tank is connected to the input end of the plate heat exchanger via a powder circulation pump. The powder circulation pump can transfer the copper stripping liquid to the cyclone electrolysis mechanism through the circulation inlet pipeline. The flow rate of the copper stripping liquid transferred to the cyclone electrolysis mechanism can be controlled by the circulation inlet valve, circulation flow meter, and circulation outlet valve. The cooling circulating water system can exchange heat with the copper stripping liquid through the input and output ends of the plate heat exchanger, ensuring a constant temperature of the copper stripping liquid, guaranteeing the electrolysis effect, and improving the service life of the equipment.

[0008] In the aforementioned automatic control device for cyclone electrolysis of powder, the cyclone electrolysis mechanism includes several cyclone electrolysis cell groups, each group having several cyclone electrolysis cells; the intelligent power distribution mechanism includes an intelligent power distribution device, the positive terminal of which is connected to one end of the cyclone electrolysis cell group, and the negative terminal connected to the other end of the cyclone electrolysis cell group. A DC current sensor is provided between the positive terminal of the intelligent power distribution device and the cyclone electrolysis cell group, and a DC voltage sensor is provided between adjacent cyclone electrolysis cells. There are four cyclone electrolysis cell groups, and each group has at least one cyclone electrolysis cell. The intelligent power distribution device can adjust its output current through the DC current sensor and the DC voltage sensor to ensure a constant system electrolysis current.

[0009] In the aforementioned automatic control device for cyclone electrolysis of powder, the backwashing mechanism includes a backwashing pump located on one side of the powder circulation tank. The backwashing pump is connected to one end of the cyclone electrolysis cell group via a backwashing inlet pipe. A backwashing inlet main valve is provided on the backwashing inlet pipe. A backwashing inlet valve is provided between one end of the cyclone electrolysis cell group and the backwashing inlet main valve. The other end of the cyclone electrolysis cell group is connected to a low-level tank via a backwashing outlet pipe, which is equipped with a backwashing outlet valve. The back-blowing assembly includes a compressed air pipeline, which is connected to the backwashing inlet pipeline via a back-blowing air inlet main valve. Each cyclone electrolyzer group has one end connected to a compressed air pipeline, and the other end of each cyclone electrolyzer group has an exhaust pipe installed on the circulating liquid outlet pipeline. The exhaust pipe is connected to the waste gas pipe. The backwash pump can control the backwash liquid inlet of each cyclone electrolyzer group through the backwash liquid inlet valve, and can control the backwash liquid inlet of the entire cyclone electrolyzer group through the backwash liquid inlet main valve. The liquid outlet of the backwash liquid outlet pipeline can be controlled through the backwash liquid outlet valve. Air can be introduced into the cyclone electrolyzer group through the compressed air pipeline, and the air intake of the entire cyclone electrolyzer group can be controlled through the back-blowing air inlet main valve. The exhaust pipe and waste gas pipe facilitate the discharge of the blown gas.

[0010] In the aforementioned automatic control device for cyclone electrolysis of powder, the low-level tank is equipped with a stirring impeller and a low-level tank level gauge. One side of the low-level tank is connected to a filter press via a low-level tank conveying pump. The filter press is connected to a powder circulation tank via a post-filtration circulation inlet pipe and to a copper-removed liquid tank via a post-filtration outlet pipe. The post-filtration circulation inlet pipe and the post-filtration outlet pipe are connected in parallel. A post-filtration liquid inlet valve for the powder circulation tank is installed on the post-filtration circulation inlet pipe, and a post-filtration liquid inlet valve for the post-filtration tank is installed on the post-filtration outlet pipe. A post-filtration liquid level gauge is installed on the post-copper-removed liquid tank, and the post-copper-removed liquid tank is connected to a post-liquid conveying pipe via a post-liquid conveying pump. A post-liquid flow meter is installed on the post-liquid conveying pipe. When the solution in the low-level tank... When the liquid level exceeds the stirring blades, automatic stirring is initiated. The liquid level in the low-level tank can be detected by the low-level tank level gauge. The stirred solution is then transported to the filter press for filtration via the low-level tank transfer pump. The filtered solution is tested. When the solution is qualified, the inlet valve of the filtered liquid in the powder circulation tank is closed, and the inlet valve of the filtered liquid in the downstream tank is opened. The filtered solution is then transferred to the copper removal downstream tank through the downstream outlet pipeline. The filtered solution is then transported to the next process via the downstream transfer pump and downstream transfer pipeline. The flow rate of the solution in the downstream transfer pipeline can be detected by the downstream flow meter. When the solution is unqualified, the inlet valve of the filtered liquid in the powder circulation tank is opened, and the inlet valve of the filtered liquid in the downstream tank is closed. The filtered solution is then transferred to the powder circulation tank for circulating electrolysis via the downstream circulation inlet pipeline.

[0011] An automatic control method for cyclone electrolysis of powder, the method comprising the following steps:

[0012] Step S1: The operation screen is started through the preset program of the central controller. The powder circulation tank is filled with liquid. The liquid filling is stopped by liquid level detection. The powder circulation tank feeds liquid to the cyclone electrolysis mechanism through the powder circulation mechanism. After the liquid is filled, electrolysis is carried out through the intelligent power distribution mechanism.

[0013] Step S2: According to the preset electrolysis time of the central controller, after the cyclone electrolysis mechanism has completed electrolysis, the powder circulation mechanism is turned off and back-blowing is performed. After the back-blowing is completed, the cyclone electrolysis mechanism is back-washed.

[0014] Step S3: Based on the liquid level detection of the low-level tank, repeat the liquid feeding, electrolysis, backflushing, and backwashing process. When the liquid level in the low-level tank reaches the required height, perform pressure filtration through a filter press. Detect whether the solution after pressure filtration is qualified. Based on whether the solution after pressure filtration is qualified, perform circulating electrolysis and solution transfer respectively.

[0015] In the above-mentioned automatic control method for cyclone electrolysis of powder, in step S1, the central controller starts according to the preset program, opens the liquid inlet component on the powder circulation tank to feed liquid, and closes the front liquid inlet valve after the liquid level of the powder circulation tank level gauge is met. Then, the circulation inlet valve and circulation outlet valve on each cyclone electrolysis cell group are opened, while other valves are closed. Then, the powder circulation pump is started to inject electrolyte into the cyclone electrolysis cell. The central controller adjusts the pump speed of the powder circulation pump in real time according to the feedback value of the circulation liquid flow meter to adjust the circulation volume of electrolyte. After the liquid feeding is completed, the cyclone electrolysis cell is electrolyzed through the intelligent power distribution mechanism. At the same time, the DC current sensor and DC voltage sensor are started. The central controller adjusts the output current of the intelligent power distribution device according to the feedback value of the DC current sensor using the single-loop PID control method.

[0016] In the above-mentioned automatic control method for cyclone electrolysis of powder, in step S2, electrolysis is completed according to the electrolysis time preset by the central controller, the intelligent power distribution mechanism is turned off and the powder circulation mechanism is turned off, the flushing inlet valve and flushing outlet valve on each group of cyclone electrolysis cells are turned on in sequence, and then the back-blowing operation is performed on each group of cyclone electrolysis cells in sequence according to the back-blowing component; after the back-blowing is completed, the back-blowing component is turned off and the back-rinsing operation is performed on each group of cyclone electrolysis cells in sequence.

[0017] In the above-mentioned automatic control method for cyclone electrolytic powder, in step S3, when the liquid level in the low-level tank does not reach the preset height, the process of steps S1 and S2 is repeated until the liquid level in the low-level tank reaches the specified height. The low-level tank transports the solution to the filter press for filtration, and the solution after filtration is tested to see if it is qualified. If the solution is unqualified, it is transported to the powder circulation tank and the process of steps S1 and S2 is repeated. The qualified solution is transported to the copper removal liquid tank and then transported to the next process.

[0018] Compared with existing technologies, the advantages of this invention are:

[0019] 1. Based on the central controller system, and through the on-site operation panel, it is used for local display and control, which is convenient for users to observe, operate and control;

[0020] 2. Multiple control methods work together, including single-loop PID + interlock control for circulating fluid flow, system electrolysis current, and backwash fluid pressure. Through precise PID control, the circulating fluid flow, system electrolysis current, and backwash fluid pressure are more stable, which facilitates standardized production.

[0021] 3. The liquid levels in the low-level tank and the copper stripping liquid tank are controlled by an interlocking automatic system, which is very convenient and efficient. It enables the entire production process to be fully automated, improving the safety, stability, continuity and efficiency of the entire production process. It also achieves standardized production, greatly reduces production costs and improves economic benefits. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the powder circulation tank in this invention;

[0024] Figure 3 This is a schematic diagram of the swirl electrolysis mechanism in this invention;

[0025] Figure 4 This is a schematic diagram of the low-level groove in this invention;

[0026] Figure 5 This is a schematic diagram illustrating the principle of circulating fluid flow rate regulation in this invention;

[0027] Figure 6 This is a schematic diagram of the electrolytic current structure in this invention;

[0028] Figure 7 This is a schematic diagram of the backwashing pressure in this invention.

[0029] Figure 8 This is a flowchart of the method of using step S1 in this invention;

[0030] Figure 9 This is a flowchart of the method of using step S2 in this invention;

[0031] Figure 10 This is a flowchart of the method used in step S3 of this invention.

[0032] In the diagram: 1. Powder circulation tank; 11. Powder circulation tank level gauge; 2. Inlet assembly; 21. Inlet pipe; 22. Inlet valve; 23. Inlet flow meter; 24. Cooling circulation heat exchange assembly; 241. Plate heat exchanger; 2411. Plate heat exchanger output; 2412. Plate heat exchanger input; 242. Cooling circulation water system; 3. Powder circulation mechanism; 31. Powder circulation pump; 32. Circulation inlet pipe; 33. Circulation outlet pipe; 34. Circulation inlet valve; 35. Circulation flow meter; 36. Circulation outlet valve; 4. Swirl electrolysis mechanism; 41. Swirl electrolysis cell group; 411. Swirl electrolysis cell; 5. Intelligent power distribution mechanism; 51. Intelligent power distribution device; 52. DC current sensor; 53. DC voltage sensor; 54. Backflushing. 6. Washing mechanism, 61. Backwash pump, 62. Backwash inlet pipe, 63. Backwash inlet main valve, 64. Backwash inlet valve, 65. Backwash outlet pipe, 66. Back-blowing assembly, 7. Compressed air pipe, 71. Back-blowing main air inlet valve, 72. Exhaust pipe, 73. Waste gas pipe, 74. Low-level tank, 8. Stirring blade, 81. Low-level tank level gauge, 82. Low-level tank transfer pump, 83. Filtered circulating inlet pipe, 84. Filtered outlet pipe, 85. Powder circulating tank filter-inlet valve, 86. Filtered liquid inlet valve, 87. Filter press, 9. Copper-removed liquid tank, 10. Filtered liquid level gauge, 101. Filtered liquid transfer pump, 102. Filtered liquid transfer pipe, 103. Filtered liquid flow meter, 104. Operation panel A, Central controller B. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0034] like Figure 1 , Figure 2 , Figure 3As shown, this automatic control device for cyclone electrolysis of powder includes a powder circulation tank 1, a liquid inlet assembly 2 on the powder circulation tank 1, and a cyclone electrolysis mechanism 4 connected to one side of the powder circulation tank 1 via a powder circulation mechanism 3. The cyclone electrolysis mechanism 4 is equipped with an intelligent power distribution mechanism 5, and a backwashing mechanism 6 is provided between the cyclone electrolysis mechanism 4 and the powder circulation tank 1. The backwashing mechanism 6 is equipped with a back-blowing assembly 7, and the cyclone electrolysis mechanism 4 is connected to a low-level tank 8 via the backwashing mechanism 6. The low-level tank 8 is connected to the powder circulation tank 1 and the copper-removed liquid tank 10 via a filter press 9. The liquid inlet assembly 2 facilitates the injection of the pre-copper-removed liquid into the powder circulation tank 1, and the powder circulation mechanism 3 facilitates the discharging of the pre-copper-removed liquid... The solution is fed into the cyclone electrolysis unit 4 and electrolyzed through the intelligent power distribution unit 5. After electrolysis, it is sequentially subjected to back-blowing and back-rinsing operations through the back-blowing assembly 7 and the back-rinsing mechanism 6. Back-blowing facilitates the removal of air bubbles from the electrode surface, reduces the tank pressure, and improves electrolytic efficiency. Back-rinsing removes deposits in the tank and restores the effective electrolysis capacity. After the electrolysis, back-blowing, and back-rinsing cycles, the solution that meets the requirements is transferred to the low-level tank 8. The solution in the low-level tank 8 is filtered and copper is removed by the filter press 9. When the copper-removed solution meets the requirements, it is transferred to the subsequent process through the copper-removed liquid tank 10. When the copper-removed solution does not meet the requirements, it continues to be circulated and electrolyzed through the powder circulation tank 1 to improve production efficiency.

[0035] Specifically, the powder circulation tank 1 is equipped with a powder circulation tank level gauge 11, and the liquid inlet assembly 2 includes a liquid inlet pipe 21. One end of the liquid inlet pipe 21 is connected to the powder circulation tank 1, and the liquid inlet pipe 21 is equipped with a pre-liquid inlet valve 22 and a pre-liquid flow meter 23. A cooling circulation heat exchange assembly 24 is provided on one side of the powder circulation tank 1. The liquid level gauge 11 can detect the liquid level height of the copper removal pre-liquid in the powder circulation tank 1. The liquid inlet pipe 21 and the pre-liquid inlet valve 22 can facilitate the transfer of the copper removal pre-liquid into the powder circulation tank 1. The pre-liquid flow meter 23 can detect the flow rate of the copper removal pre-liquid delivered into the powder circulation tank 1. The cooling circulation heat exchange assembly 24 ensures that the solution temperature is constant, ensuring electrolysis efficiency and improving the service life of the equipment.

[0036] The powder circulation mechanism 3 includes a powder circulation pump 31, one side of which is connected to the powder circulation tank 1, and the other side of which is connected to one end of the cyclone electrolysis mechanism 4 via a circulation inlet pipe 32. The other end of the cyclone electrolysis mechanism 4 is connected to the powder circulation tank 1 via a circulation outlet pipe 33. The circulation inlet pipe 32 is equipped with a circulation inlet valve 34 and a circulation flow meter 35, and the circulation outlet pipe 33 is equipped with a circulation outlet valve 36. The cooling circulation heat exchange assembly 24 includes a plate heat exchanger 241, which is connected to the cooling circulation water system 242, and the plate heat exchanger 241 is connected to the plate heat exchanger output end 24. 11 is connected to the powder circulation tank 1. The powder circulation tank 1 is connected to the plate heat exchanger input end 2412 via the powder circulation pump 31. The powder circulation pump 31 can transfer the copper removal liquid to the cyclone electrolysis mechanism 4 through the circulation inlet pipe 32. The flow rate of the copper removal liquid transferred to the cyclone electrolysis mechanism 4 can be controlled by the circulation inlet valve 34, the circulation liquid flow meter 35, and the circulation outlet valve 36. The cooling circulation water system 242 can exchange heat with the copper removal liquid through the plate heat exchanger input end 2412 and the plate heat exchanger output end 2411 to ensure that the temperature of the copper removal liquid is constant, ensure the electrolysis effect, and improve the service life of the equipment.

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the cyclone electrolysis mechanism 4 includes several cyclone electrolysis cell groups 41, each group having several cyclone electrolysis cells 411; the intelligent power distribution mechanism 5 includes an intelligent power distribution device 51, the positive terminal of which is connected to one end of the cyclone electrolysis cell group 41, and the negative terminal of which is connected to the other end of the cyclone electrolysis cell group 41. A DC current sensor 52 is provided between the positive terminal of the intelligent power distribution device 51 and the cyclone electrolysis cell group 41, and a DC current sensor 52 is provided between adjacent cyclone electrolysis cells 411. The DC current sensor 53 and DC voltage sensor 52 are used to monitor the DC current of each group of cyclone electrolytic cells 411, and the DC voltage sensor 53 is used to monitor the DC voltage of each group of cyclone electrolytic cells 411. The cyclone electrolytic cell group 41 has four groups, and each group of cyclone electrolytic cells 41 is equipped with at least one cyclone electrolytic cell 411. The intelligent power distribution device 51 can adjust the output current of the intelligent power distribution device 51 through the DC current sensor 52 and DC voltage sensor 53 to ensure the constant electrolysis current of the system.

[0038] Furthermore, the backwashing mechanism 6 includes a backwashing pump 61 located on one side of the powder circulation tank 1. The backwashing pump 61 is connected to one end of the cyclone electrolytic cell assembly 41 via a backwashing inlet pipe 62. A backwashing inlet main valve 63 is provided on the backwashing inlet pipe 62. A backwashing inlet valve 64 is provided between one end of the cyclone electrolytic cell assembly 41 and the backwashing inlet main valve 63. The other end of the cyclone electrolytic cell assembly 41 is connected to the low-level tank 8 via a backwashing outlet pipe 65. A backwashing outlet valve 66 is provided on the backwashing outlet pipe 65. The back-blowing assembly 7 includes a compressed air pipe 71. The compressed air pipe 71 is connected to the backwashing inlet pipe 62 via a back-blowing air inlet main valve 72. One end of each cyclone electrolytic cell assembly 41 is connected to the compressed air pipe 71. Each of the cyclone electrolyzer groups 41 has an exhaust pipe 73 installed on the circulation outlet pipe 33 at the other end. The exhaust pipe 73 is connected to the waste gas pipe 74. The backwash pump 61 can control the flushing liquid inlet of each cyclone electrolyzer group 41 through the flushing liquid inlet valve 64, and can control the flushing liquid inlet of the total cyclone electrolyzer group 41 through the backwashing liquid inlet main valve 63. The liquid outlet of the flushing liquid outlet pipe 65 can be controlled through the flushing liquid outlet valve 66. Air can be introduced into the cyclone electrolyzer group 41 through the compressed air pipe 71. The air intake of the total cyclone electrolyzer group 41 can be controlled through the back-blowing air inlet main valve 72. The exhaust pipe 73 and the waste gas pipe 74 can facilitate the discharge of the blown gas.

[0039] The low-level tank 8 is equipped with a stirring blade 81 and a low-level tank level gauge 82. One side of the low-level tank 8 is connected to a filter press 9 via a low-level tank transfer pump 83. The filter press 9 is connected to a powder circulation tank 1 via a post-filtration circulation inlet pipe 84, and to a copper-removed liquid tank 10 via a post-filtration outlet pipe 85. The post-filtration circulation inlet pipe 84 and the post-filtration outlet pipe 85 are connected in parallel. A powder circulation tank filtration liquid inlet valve 86 is installed on the post-filtration circulation inlet pipe 84, and a post-filtration liquid inlet valve 87 is installed on the post-filtration outlet pipe 85. The copper-removed liquid tank 10 is equipped with a post-filtration tank level gauge 101, and is connected to a post-filtration delivery pipe 103 via a post-filtration delivery pump 102. A post-filtration flow meter 104 is installed on the post-filtration delivery pipe 103. When the solution level in the low-level tank 8 exceeds the stirring blade 81, the flow meter can be adjusted. The system automatically stirs the solution, and the liquid level in the low-level tank 8 can be detected by the low-level tank level gauge 82. The stirred solution is then transported to the filter press 9 for filtration by the low-level tank transfer pump 83. The filtered solution is tested, and when the solution is qualified, the filter liquid inlet valve 86 of the powder circulation tank is closed, and the filter liquid inlet valve 87 of the post-filter liquid tank is opened. The filtered solution is then transferred to the copper removal post-filter liquid tank 10 through the post-filter liquid outlet pipe 85. The filtered solution is then transported to the next process through the post-filter liquid transfer pump 102 and the post-filter liquid transfer pipe 103. The flow rate of the solution in the post-filter liquid transfer pipe 103 can be detected by the post-filter liquid flow meter 104. When the solution is unqualified, the filter liquid inlet valve 86 of the powder circulation tank is opened, and the filter liquid inlet valve 87 of the post-filter liquid tank is closed. The filtered solution is then transferred to the powder circulation tank 1 for circulating electrolysis through the post-filter circulation inlet pipe 84.

[0040] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, an automatic control method for cyclone electrolysis of powder is described. This method includes the following steps:

[0041] Step S1: The operation screen A is started by the preset program of the central controller B. The powder circulation tank 1 is filled with liquid. The liquid filling is stopped by liquid level detection. The powder circulation tank 1 is filled with liquid to the cyclone electrolysis mechanism 4 through the powder circulation mechanism 3. After the liquid is filled, electrolysis is carried out through the intelligent power distribution mechanism 5.

[0042] Step S2: According to the preset electrolysis time of the central controller B, after the cyclone electrolysis mechanism 4 completes the electrolysis, the powder circulation mechanism 3 is turned off and back-blowing is performed. After the back-blowing is completed, the cyclone electrolysis mechanism 4 is back-washed.

[0043] Step S3: Based on the liquid level detection of the low-level tank 8, repeat the liquid feeding, electrolysis, backflushing, and backwashing process. When the liquid level of the low-level tank 8 reaches the required height, perform pressure filtration through the filter press 9. Detect whether the solution after pressure filtration is qualified. Based on whether the solution after pressure filtration is qualified, perform circulating electrolysis and transport the solution accordingly.

[0044] In step S1, according to the preset program of the central controller B, the pre-liquid inlet valve 22 of the liquid inlet assembly 2 on the powder circulation tank 1 is opened to allow liquid to enter through the liquid inlet pipe 21. The liquid level gauge 11 of the powder circulation tank is started. When the liquid level requirement of the liquid level gauge 11 is met, the pre-liquid inlet valve 22 is closed. The circulation inlet valve 34 and circulation outlet valve 36 on each cyclone electrolysis cell group 41 are opened, while other valves are closed. Then, the powder circulation pump 31 is started to inject electrolyte into the cyclone electrolysis cell 411. At the same time, the circulation flow meter 35, the liquid level gauge and the thermometer are started. The central controller B uses a single-loop PID controller based on the feedback value of the circulation flow meter 35. The control method adjusts the pump speed of the powder circulation pump 31 to adjust the circulation volume of the electrolyte in real time, with the circulation flow deviation being less than 1 m3 / h. According to the preset program of the central controller B, the intelligent power distribution mechanism 5 is started after a delay in the circulation flow, and DC current is delivered to the cyclone electrolysis cell 411 for electrolysis. At the same time, the DC current sensor 52 and the DC voltage sensor 53 are started. The central controller B uses a single-loop PID control method to adjust the output current of the intelligent power distribution device 51 based on the feedback value of the DC current sensor 52, so as to ensure the constant electrolysis current of the system, accurately control the current deviation of the powder cyclone electrolysis to be less than 1%, and achieve a current efficiency of over 88%.

[0045] Specifically, in step S2, electrolysis is completed according to the electrolysis time preset by the central controller B. The intelligent power distribution mechanism 5 and the powder circulation pump 31 are turned off. The backwash inlet valve 63 and the circulation inlet valve 34 and circulation outlet valve 36 on each group of cyclone electrolysis cells 41 are closed. The flushing inlet valve 64 and flushing outlet valve 66 on the first group of cyclone electrolysis cells 41 are opened. Then, the backflush air inlet valve 72 on the compressed air pipeline 71 is opened, and the first group of cyclone electrolysis cells 41 begins backflush. According to the program preset by the central controller B, the first... After the backflushing of the first cyclone electrolyzer group 41 is completed, the flushing inlet valve 64 and flushing outlet valve 66 on the second cyclone electrolyzer group 41 are opened, and then the flushing inlet valve 64 and flushing outlet valve 66 on the first cyclone electrolyzer group 41 are closed, and the second cyclone electrolyzer group 41 begins backflushing. According to the preset program of the central controller B, after the backflushing of the second cyclone electrolyzer group 41 is completed, the flushing inlet valve 64 and flushing outlet valve 66 on the third cyclone electrolyzer group 41 are opened, and then the flushing inlet valve on the second cyclone electrolyzer group 41 is closed. 64 and 66 are used to flush the third cyclone electrolyzer group 41, and back-flushing begins. According to the preset program of the central controller B, after the back-flushing of the third cyclone electrolyzer group 41 is completed, the flushing inlet valve 64 and the flushing outlet valve 66 on the fourth cyclone electrolyzer group 41 are opened, and then closed. The fourth cyclone electrolyzer group 41 then begins back-flushing. According to the preset program of the central controller B, after the back-flushing of the fourth cyclone electrolyzer group 41 is completed, the back-flushing air inlet valve is closed. 72. The flushing inlet valve 64 and flushing outlet valve 66 on the fourth group of cyclone electrolytic cells 41; open the flushing inlet valve 64 and flushing outlet valve 66 on the first group of cyclone electrolytic cells 41, open the backwash inlet main valve 63 on the flushing inlet pipeline 62, then start the backwash pump 61 and interlock the low-level tank level gauge 82. The central controller B adjusts the pump speed of the backwash pump 61 according to the feedback value of the backwash liquid pressure gauge using a single-loop PID control method to adjust the pressure of the backwash liquid, ensuring the stability of the flushing effect and that the flushing pressure deviation is less than 0.At 0.01 MPa, the solution impurity removal rate reaches over 85%, achieving stable preparation of copper powder and stable impurity removal of the solution. The first group of cyclone electrolytic cells 41 begins backwashing. According to the preset program of the central controller B, after the backwashing of the first group of cyclone electrolytic cells 41 is completed, the flushing inlet valve 64 and flushing outlet valve 66 on the second group of cyclone electrolytic cells 41 are opened, and then the flushing inlet valve 64 and flushing outlet valve 66 on the first group of cyclone electrolytic cells 41 are closed. The second group of cyclone electrolytic cells 41 begins backwashing. According to the preset program of the central controller B, after the backwashing of the second group of cyclone electrolytic cells 41 is completed, the flushing inlet valve 64 and flushing outlet valve 66 on the third group of cyclone electrolytic cells 41 are opened, and then the flushing inlet valve 64 and flushing outlet valve 66 on the second group of cyclone electrolytic cells 41 are closed. The third set of cyclone electrolytic cells 41 begins backwashing. According to the preset program of the central controller B, after the backwashing of the third set of cyclone electrolytic cells 41 is completed, the flushing inlet valve 64 and flushing outlet valve 66 on the fourth set of cyclone electrolytic cells 41 are opened, and then closed. The fourth set of cyclone electrolytic cells 41 then begins backwashing. According to the preset program of the central controller B, after the backwashing of the fourth set of cyclone electrolytic cells 41 is completed, the backwashing pump 61 is stopped, and the backwashing inlet main valve 63 is closed. Then, the processes of liquid circulation, electrolysis, backflushing, and backwashing are repeated until the solution meets the requirements. After the backwashing of the fourth set of cyclone electrolytic cells 41 is completed, the remaining solution in the powder circulation tank 1 is discharged into the low-level tank 8 through the backwashing pump 61.

[0046] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10As shown, in step S3, according to the preset program of the central controller B, the liquid level in the low-level tank 8 is detected by the low-level tank level gauge 82. When the liquid level in the low-level tank 8 does not reach the preset height, steps S1 and S2 are repeated until the liquid level in the low-level tank 8 reaches the specified height. When the liquid level in the low-level tank 8 exceeds the stirring blade 81, the stirring of the low-level tank 8 is automatically started. The low-level tank 8 transports the solution to the filter press 9 for filtration through the low-level tank conveying pump 83. The filter press 9 filters out copper powder. When the solution in the powder circulation tank 1 is unqualified, the liquid inlet valve 86 of the powder circulation tank after filtration is opened, and the liquid inlet valve 87 of the liquid inlet tank after filtration is closed. The filtered solution is transferred to the powder circulation tank 1 through the post-filtration circulation inlet pipeline 84. Electrolysis is carried out in the circulating tank 1. When the solution in the circulating tank 1 is qualified, the inlet valve 86 of the filter liquid in the circulating tank is closed and the inlet valve 87 of the filter liquid in the downstream tank is opened. The filter liquid is transferred to the copper removal downstream tank 10 through the filter outlet pipe 85 until the solution in the circulating tank 1 reaches the minimum liquid level. Then, the backwash pump 61 is turned off and the inlet valve 22 of the upstream liquid on the circulating tank 1 is opened to transport the copper removal upstream liquid to the circulating tank 1. Steps 1 and 2 are repeated. According to the preset program of the central controller B, the downstream liquid conveying pump 102 is automatically started and stopped according to the liquid level of the copper removal downstream tank 10. The filter liquid is transported to the next process through the downstream liquid conveying pump 102 and the downstream liquid conveying pipe 103.

[0047] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0048] Although this paper extensively uses the following components: powder circulation tank 1, powder circulation tank level gauge 11, liquid inlet assembly 2, liquid inlet pipe 21, pre-liquid inlet valve 22, pre-liquid flow meter 23, cooling circulation heat exchange assembly 24, plate heat exchanger 241, plate heat exchanger output end 2411, plate heat exchanger input end 2412, cooling circulation water system 242, powder circulation mechanism 3, powder circulation pump 31, circulation inlet pipe 32, circulation outlet pipe 33, circulation inlet valve 34, circulation flow meter 35, circulation outlet valve 36, cyclone electrolysis mechanism 4, cyclone electrolysis cell group 41, cyclone electrolysis cell 411, intelligent power distribution mechanism 5, intelligent power distribution device 51, DC current sensor 52, DC voltage sensor 53, backwashing mechanism 6, and reverse... The terms used include: flushing pump 61, flushing inlet pipeline 62, backflushing inlet main valve 63, flushing inlet valve 64, flushing outlet pipeline 65, flushing outlet valve 66, backflushing assembly 7, compressed air pipeline 71, backflushing air inlet main valve 72, exhaust pipe 73, waste gas pipe 74, low-level tank 8, stirring blade 81, low-level tank level gauge 82, low-level tank transfer pump 83, post-filter circulation inlet pipeline 84, post-filter outlet pipeline 85, powder circulation tank post-filter liquid inlet valve 86, post-filter liquid inlet valve 87, filter press 9, copper removal post-filter liquid tank 10, post-filter liquid level gauge 101, post-filter liquid transfer pump 102, post-filter liquid transfer pipeline 103, post-filter liquid flow meter 104, operation panel A, central controller B, etc., but the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the nature of the invention; interpreting them as any additional limitation would be contrary to the spirit of the invention.

Claims

1. An automatic control device for cyclone electrolysis of powder, comprising a powder circulation tank (1), wherein the powder circulation tank (1) is provided with a liquid inlet assembly (2), and one side of the powder circulation tank (1) is connected to a cyclone electrolysis mechanism (4) via a powder circulation mechanism (3), characterized in that, The cyclone electrolysis mechanism (4) is equipped with an intelligent power distribution mechanism (5), and a backwashing mechanism (6) is provided between the cyclone electrolysis mechanism (4) and the powder circulation tank (1). The backwashing mechanism (6) is equipped with a back-blowing assembly (7), and the cyclone electrolysis mechanism (4) is connected to the low-level tank (8) through the backwashing mechanism (6). The low-level tank (8) is connected to the powder circulation tank (1) and the copper removal liquid tank (10) through the filter press (9).

2. The automatic control device for cyclone electrolysis of powder according to claim 1, characterized in that, The powder circulation tank (1) is equipped with a powder circulation tank level gauge (11), the liquid inlet assembly (2) includes a liquid inlet pipe (21), one end of the liquid inlet pipe (21) is connected to the powder circulation tank (1), and the liquid inlet pipe (21) is equipped with a front liquid inlet valve (22) and a front liquid flow meter (23), and a cooling circulation heat exchange assembly (24) is provided on one side of the powder circulation tank (1).

3. The automatic control device for cyclone electrolysis of powder according to claim 2, characterized in that, The powder circulation mechanism (3) includes a powder circulation pump (31). One side of the powder circulation pump (31) is connected to the powder circulation tank (1), and the other side of the powder circulation pump (31) is connected to one end of the cyclone electrolysis mechanism (4) through a circulation inlet pipe (32). The other end of the cyclone electrolysis mechanism (4) is connected to the powder circulation tank (1) through a circulation outlet pipe (33). The circulation inlet pipe (32) is equipped with a circulation inlet valve (34) and a circulation flow meter (35). The circulating liquid outlet pipeline (33) is provided with a circulating liquid outlet valve (36); the cooling circulating heat exchange assembly (24) includes a plate heat exchanger (241), the plate heat exchanger (241) is connected to the cooling circulating water system (242), and the plate heat exchanger (241) is connected to the powder circulating tank (1) through the plate heat exchanger output end (2411), and the powder circulating tank (1) is connected to the plate heat exchanger input end (2412) through the powder circulating pump (31).

4. The automatic control device for cyclone electrolysis of powder according to claim 3, characterized in that, The cyclone electrolysis mechanism (4) includes several cyclone electrolysis cell groups (41), each cyclone electrolysis cell group (41) having several cyclone electrolysis cells (411); the intelligent power distribution mechanism (5) includes an intelligent power distribution device (51), the positive electrode of the intelligent power distribution device (51) is connected to one end of the cyclone electrolysis cell group (41), and the negative electrode of the intelligent power distribution device (51) is connected to the other end of the cyclone electrolysis cell group (41), and a DC current sensor (52) is provided between the positive electrode of the intelligent power distribution device (51) and the cyclone electrolysis cell group (41), and a DC voltage sensor (53) is provided between adjacent cyclone electrolysis cells (411).

5. The automatic control device for cyclone electrolysis of powder according to claim 4, characterized in that, The backwashing mechanism (6) includes a backwashing pump (61) installed on one side of the powder circulation tank (1). The backwashing pump (61) is connected to one end of the cyclone electrolytic cell group (41) via a backwashing inlet pipe (62). A backwashing inlet main valve (63) is provided on the backwashing inlet pipe (62). A backwashing inlet valve (64) is provided between one end of the cyclone electrolytic cell group (41) and the backwashing inlet main valve (63). The other end of the cyclone electrolytic cell group (41) is connected to the low-level tank (8) via a backwashing outlet pipe (65). The flushing outlet pipeline (65) is equipped with a flushing outlet valve (66); the back-blowing assembly (7) includes a compressed air pipeline (71), which is connected to the flushing inlet pipeline (62) through the back-blowing air inlet main valve (72). One end of each of the cyclone electrolytic cell group (41) is connected to the compressed air pipeline (71), and the other end of each of the cyclone electrolytic cell group (41) has an exhaust pipe (73) installed on the circulating outlet pipeline (33), which is connected to the waste gas pipe (74).

6. The automatic control device for cyclone electrolysis of powder according to claim 1, characterized in that, The low-level tank (8) is equipped with a stirring blade (81) and a low-level tank level gauge (82). One side of the low-level tank (8) is connected to a filter press (9) via a low-level tank transfer pump (83). The filter press (9) is connected to a powder circulation tank (1) via a post-filtration circulation inlet pipe (84). The filter press (9) is connected to a copper removal liquid tank (10) via a post-filtration outlet pipe (85). The post-filtration circulation inlet pipe (84) and the post-filtration outlet pipe (85) are connected in parallel. The filter circulation inlet pipeline (84) is equipped with a powder circulation tank filter liquid inlet valve (86), and the filter outlet pipeline (85) is equipped with a post-liquid tank filter liquid inlet valve (87). The copper removal post-liquid tank (10) is equipped with a post-liquid tank level gauge (101), and the copper removal post-liquid tank (10) is connected to the post-liquid transport pipeline (103) through a post-liquid transport pump (102). The post-liquid transport pipeline (103) is equipped with a post-liquid flow meter (104).

7. An automatic control method for cyclone electrolysis of powder, employing an automatic control device for cyclone electrolysis of powder as described in any one of claims 1-6, characterized in that, This method includes the following steps: Step S1: The operation screen is started by the preset program of the central controller. The powder circulation tank (1) is filled with liquid. The liquid is stopped by liquid level detection. The powder circulation tank (1) is filled with liquid to the vortex electrolysis mechanism (4) through the powder circulation mechanism (3). After the liquid is filled, electrolysis is carried out through the intelligent power distribution mechanism (5). Step S2: According to the preset electrolysis time of the central controller, after the cyclone electrolysis mechanism (4) completes the electrolysis, the powder circulation mechanism (3) is turned off and back-blowing is performed. After the back-blowing is completed, the cyclone electrolysis mechanism (4) is back-washed. Step S3: Based on the liquid level detection of the low tank (8), repeat the liquid feeding cycle, electrolysis, backflush, and backwashing process. When the liquid level of the low tank (8) reaches the height, filter it through the filter press (9). Detect whether the solution after filter pressing is qualified. Based on whether the solution after filter pressing is qualified, perform circulating electrolysis and transport the solution respectively.

8. The automatic control method for cyclone electrolysis powder according to claim 7, characterized in that, In step S1, the central controller starts according to the preset program, opens the liquid inlet component (2) on the powder circulation tank (1) to feed liquid, and closes the liquid inlet valve (22) after the liquid level requirement of the liquid level gauge (11) of the powder circulation tank is met. Then, the circulation inlet valve (34) and circulation outlet valve (36) on each cyclone electrolysis cell group (41) are opened, and other valves are closed at the same time. Then, the powder circulation pump (31) is started to inject the electrolyte into the cyclone electrolysis cell (411). The central controller adjusts the pump speed of the powder circulation pump (31) according to the feedback value of the circulation liquid flow meter (35) to adjust the circulation volume of the electrolyte in real time. After the liquid is fed, the cyclone electrolysis cell (411) is electrolyzed through the intelligent power distribution mechanism (5). At the same time, the DC current sensor (52) and DC voltage sensor (53) are started. The central controller adjusts the output current of the intelligent power distribution device (51) according to the feedback value of the DC current sensor (52) using the single-loop PID control method.

9. The automatic control method for cyclone electrolysis powder according to claim 8, characterized in that, In step S2, electrolysis is completed according to the electrolysis time preset by the central controller. The intelligent power distribution mechanism (5) and the powder circulation mechanism (3) are turned off. The flushing inlet valve (64) and flushing outlet valve (66) on each group of cyclone electrolysis cells (41) are turned on in sequence. Then, the back-blowing operation is performed on each group of cyclone electrolysis cells (41) in sequence according to the back-blowing assembly (7). After the back-blowing is completed, the back-blowing assembly (7) is turned off and the back-rinsing operation is performed on each group of cyclone electrolysis cells (41) in sequence.

10. The automatic control method for cyclone electrolysis powder according to claim 9, characterized in that, In step S3, when the liquid level in the low-level tank (8) does not reach the preset height, the process of step S1 and step S2 is repeated until the liquid level in the low-level tank (8) reaches the specified height. The low-level tank (8) transports the solution to the filter press (9) for filter pressing. After filter pressing, the solution is tested to see if it is qualified. The unqualified solution is transported to the powder circulation tank (1) and the process of step S1 and step S2 is repeated. The qualified solution is transported to the copper removal liquid tank (10) and then the qualified solution is transported to the next process.

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