Oxygen supply ultrasonic high-efficiency leaching control system

Abstract

The utility model provides an oxygen conveying ultrasonic wave high -efficient leaching control system. Include: oxidation reaction groove, pump unit, valve group, including oxygen valve and steam valve, flowmeter group, pH meter, stirring motor, liquid level meter all are established on oxidation reaction groove, thermometer, be established on oxidation reaction groove, be used for monitoring the temperature of solution in oxidation reaction groove, pressure gauge, be established on high -efficient oxidation generator, be used for monitoring the pressure in high -efficient oxidation generator, central controller is connected with pump unit, valve group, flowmeter group, stirring motor, pH meter, liquid level meter, thermometer and pressure gauge electricity. Utilize above -mentioned system can realize the automatic regulation and control of oxidation reaction groove's feeding state and high -efficient oxidation generator oxygen intake's automatic regulation and control, convenient to the leaching process monitoring, debugging, alarm, stabilize simultaneously feeding, the accurate control of oxidation reaction groove's pH value and temperature value, high -efficient oxidation generator oxygen intake's accurate control and pressure monitoring.

Description

Technical Field

[0001] This utility model belongs to the field of automatic control technology, specifically relating to a high-efficiency ultrasonic leaching control system for oxygen delivery. Background Technology

[0002] In hydrometallurgy, nickel and cobalt in high-grade nickel matte need to be extracted by leaching. Currently, the main methods used in domestic hydrometallurgy and environmental protection for high-grade nickel matte leaching are atmospheric pressure leaching and pressure leaching. However, both atmospheric pressure leaching and pressure leaching have disadvantages such as long reaction time, low efficiency, and low leaching rate. Furthermore, atmospheric pressure leaching requires the introduction of a large amount of oxygen, while pressure leaching requires higher reaction temperature and pressure conditions, making the reaction conditions harsh.

[0003] The most important process parameter in the oxygen-supplying ultrasonic high-efficiency leaching system is the pH control of the oxidation reaction tank. The pH value of the oxidation reaction tank is a key parameter for producing high-end products and belongs to a large lag element. Traditional pH control uses a single-loop PID control method, but due to the nonlinearity and lag characteristics of pH measurement, it is easy to cause system response overshoot or oscillation during the control process. In practical applications, it is difficult to achieve fast and accurate control, resulting in low leaching rates.

[0004] In addition, the feed, pump set, valves, flow rate, pH, temperature and pressure in the oxygen-conveying ultrasonic high-efficiency leaching system are not interlocked and have not yet been standardized, which is not conducive to improving leaching efficiency and production organization and management. Utility Model Content

[0005] To address the above technical problems, the purpose of this utility model is to provide an efficient ultrasonic leaching control system for oxygen supply in nickel-cobalt hydrometallurgical processes. This system can quickly and accurately control the pH value of the solution in the oxidation reaction tank. The system has a high degree of automation, standardized processes, and can effectively improve the leaching efficiency of nickel and cobalt.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-efficiency ultrasonic leaching control system for oxygen delivery includes:

[0008] Oxidation reaction tank;

[0009] High-efficiency oxidation generator;

[0010] A sulfuric acid transfer pump, wherein the output end of the sulfuric acid transfer pump is connected to an oxidation reaction tank;

[0011] A pre-leaching liquid pump, the output end of which is connected to the oxidation reaction tank;

[0012] The leaching circulation pump has its input end connected to the oxidation reaction tank and its output end connected to the high-efficiency oxidation generator, which pumps the solution in the oxidation reaction tank into the high-efficiency oxidation generator at a certain pressure.

[0013] Steam valves are installed on the pipe connecting the main steam pipe and the oxidation reaction tank.

[0014] A pH meter is installed on the oxidation reaction tank to monitor the pH value of the solution in the oxidation reaction tank.

[0015] An acid flow meter is installed on the connecting pipe between the sulfuric acid delivery pump and the oxidation reaction tank.

[0016] A pre-leaching liquid flow meter is installed on the connecting pipe between the pre-leaching liquid pump and the oxidation reaction tank;

[0017] A level gauge is installed on the oxidation reaction tank to monitor the height of the solution in the oxidation reaction tank;

[0018] A thermometer is installed on the oxidation reaction tank to monitor the temperature of the solution inside the oxidation reaction tank;

[0019] A stirring motor is installed on the oxidation reaction tank for mixing the solution in the oxidation reaction tank;

[0020] A further preferred embodiment is that the control system further includes:

[0021] A circulating liquid flow meter is installed on the connecting pipe between the outlet of the leaching circulating pump and the high-efficiency oxidation generator;

[0022] An oxygen flow meter is installed on the connecting pipe between the main oxygen pipe and the high-efficiency oxidation generator.

[0023] An oxygen valve is installed on the connecting pipe between the main oxygen pipe and the high-efficiency oxidation generator.

[0024] A pressure gauge is installed on the high-efficiency oxidation generator to monitor the pressure inside the high-efficiency oxidation generator.

[0025] A further preferred embodiment is that the control system further includes: a central controller, which is electrically connected to the sulfuric acid delivery pump, the pre-leaching liquid pump, the leaching circulation pump, the steam valve, the oxygen valve, the acid flow meter, the pre-leaching liquid flow meter, the oxygen flow meter, the circulating liquid flow meter, the pH meter, the level gauge, the pressure gauge, the thermometer, and the stirring motor.

[0026] A further preferred embodiment is that the control system also includes an alarm.

[0027] The central controller adjusts the pump speed of the sulfuric acid delivery pump based on the feedback values ​​from the acid flow meter and pH meter using a cascade control method to adjust the amount of sulfuric acid added.

[0028] The central controller adjusts the pumping speed of the pre-leaching liquid pump based on the feedback value of the pre-leaching liquid flow meter using a single-loop PID control method to adjust the amount of pre-leaching liquid added.

[0029] The central controller adjusts the opening of the oxygen valve to regulate the oxygen flow rate based on the feedback value from the oxygen flow meter using a single-loop PID control method.

[0030] The central controller adjusts the pump speed of the leaching circulation pump based on the feedback value of the circulating liquid flow meter using a single-loop PID control method to adjust the circulation volume of the leaching liquid.

[0031] The central controller adjusts the opening of the steam valve to regulate the steam flow rate based on the feedback value from the thermometer using a single-loop PID control method.

[0032] A further preferred embodiment is to install a pressure gauge on the high-efficiency oxidation generator to monitor the working pressure inside the high-efficiency oxidation generator and ensure equipment safety.

[0033] A further preferred embodiment is that the level gauge is a radar level gauge, which is installed at the top of the oxidation reaction tank.

[0034] A further preferred embodiment is that the acid flow meter, the pre-leaching liquid flow meter, and the circulating liquid flow meter are all electromagnetic flow meters.

[0035] A further preferred embodiment is that the oxygen flow meter is a vortex flow meter.

[0036] A further preferred embodiment is that the steam valve and oxygen valve are regulating valves.

[0037] A further preferred embodiment is that a parameter alarm program is set in the central controller.

[0038] A further preferred embodiment is that the central controller is also equipped with a group start-stop interlock.

[0039] A further preferred embodiment is to provide a leachate outlet at the top of the oxidation reactor.

[0040] The method of using the oxygen-conveying ultrasonic high-efficiency leaching control system described above, implemented using the oxygen-conveying ultrasonic high-efficiency leaching control system as described above, includes the following steps:

[0041] S1. Start the sulfuric acid delivery pump and the pre-leaching liquid pump according to the preset program of the central controller and open the steam valve of the steam pipeline to allow sulfuric acid solution, pre-leaching liquid and steam to enter the oxidation reaction tank. At the same time, start the pH meter, various flow meters, liquid level gauge, thermometer and stirring motor.

[0042] S2. Start the leaching circulation pump and open the oxygen valve of the oxygen pipeline according to the preset program of the central controller, so that the leaching liquid and oxygen enter the high-efficiency oxidation generator, and start the pressure gauge and circulating liquid flow meter at the same time.

[0043] S3, pH meter monitors the pH value of the solution in the oxidation reaction tank, each flow meter monitors the flow rate of liquid and gas in the pipeline, liquid level gauge monitors the liquid height in the oxidation reaction tank, thermometer monitors the liquid temperature in the oxidation reaction tank, pressure gauge monitors the pressure in the high-efficiency oxidation generator, and the monitoring data of pH meter, each flow meter, liquid level gauge, pressure gauge and thermometer are uploaded to the central controller.

[0044] S4. The central controller adjusts the pump speed of the sulfuric acid delivery pump according to the flow rate of the sulfuric acid solution to adjust the amount of sulfuric acid added. The central controller adjusts the pump speed of the pre-leaching liquid pump according to the flow rate of the pre-leaching liquid to adjust the amount of pre-leaching liquid added. The central controller adjusts the opening of the steam valve according to the temperature of the solution in the oxidation reaction tank to adjust the steam flow rate. The central controller adjusts the opening of the oxygen valve according to the oxygen flow rate to adjust the oxygen flow rate. In addition, the central controller also adjusts the pump speed of the sulfuric acid delivery pump according to the pH value of the pH meter to adjust the amount of sulfuric acid added.

[0045] S5. During production, when the input volume of the pre-leaching solution and the oxygen input volume are stable within the preset range of the central controller, and the pH value and temperature of the solution in the oxidation reaction tank are stable within the preset range of the central controller, the system will stop with one key after all the pre-leaching solution has been leached through the oxidation reaction tank. The central controller will stop the pump, stirring motor, oxygen valve, and steam valve. This process will be repeated for the next leaching.

[0046] A further preferred embodiment is that the sulfuric acid solution adopts a cascade control method, the secondary loop uses a proportional control method to adjust the outlet flow rate of the sulfuric acid solution feed pump to control the amount of sulfuric acid solution added, and the main loop uses a PID control method to adjust the pH value of the solution in the oxidation reaction tank.

[0047] Based on the above, the oxygen-supplying ultrasonic high-efficiency leaching control system of this utility model can acquire the feed liquid flow rate, temperature and pH value in the oxidation reaction tank, oxygen quantity in the high-efficiency oxidation generator, and leaching liquid circulation volume through the high-efficiency oxidation generator via a central controller. The amount of feed liquid added can be adjusted by setting the central controller, resulting in smaller pH value fluctuations in the oxidation reaction tank and more precise control, thereby improving leaching efficiency. Furthermore, the above-mentioned oxygen-supplying ultrasonic high-efficiency leaching control system allows for automatic operation according to a preset method, facilitating unified management of the system and ensuring stability during the oxygen-supplying ultrasonic high-efficiency leaching process.

[0048] The above system can be used to automatically regulate the feeding status of the oxidation reaction tank and the oxygen supply of the high-efficiency oxidation generator, which facilitates the monitoring, debugging and alarm of the leaching process. At the same time, it ensures stable feeding, precise control of pH and temperature in the oxidation reaction tank, precise control of oxygen supply to the high-efficiency oxidation generator and pressure monitoring. Attached Figure Description

[0049] Figure 1 A structural diagram of a high-efficiency ultrasonic leaching control system for oxygen delivery;

[0050] Figure 2 Schematic diagram of pH control principle for an oxygen-supplying ultrasonic high-efficiency leaching control system;

[0051] Figure 3 A flowchart illustrating the usage of an oxygen delivery ultrasonic high-efficiency leaching control system.

[0052] Explanation of reference numerals in the attached figures:

[0053] 1. Oxidation reaction tank; 2. High-efficiency oxidation generator; 3. Leaching circulation pump; 4. Pre-leaching liquid pump; 5. Pre-leaching liquid flow meter; 6. Sulfuric acid transfer pump; 7. Acid flow meter; 8. Steam valve; 9. Thermometer; 10. Level gauge; 11. pH meter; 12. Stirring motor; 13. Oxygen valve; 14. Oxygen flow meter; 15. Circulating liquid flow meter; 16. Pressure gauge; 17. Leaching liquid outlet; 18. Central controller. Detailed Implementation

[0054] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0055] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this utility model. All raw materials, reagents, instruments and equipment used in this utility model are commercially available or can be obtained by existing methods.

[0056] like Figure 1 As shown, the control system of the ultrasonic high-efficiency leaching device for oxygen supply of this utility model includes a pump group, various flow meters, a pH meter 11, a valve group, a thermometer 9, a pressure gauge 16, an oxidation reaction tank 1, a high-efficiency oxidation generator 2, and a central controller 18.

[0057] The pump set includes a sulfuric acid transfer pump 6 connected to the sulfuric acid solution, a pre-leaching liquid pump 4 connected to the pre-leaching liquid, and a leaching circulation pump 3 connected to the leaching circulation liquid. The output ends of the sulfuric acid transfer pump 6 and the pre-leaching liquid pump 4 are connected to the oxidation reaction tank 1, and the output end of the leaching circulation pump 3 is connected to the high-efficiency oxidation generator 2. The valve set includes an oxygen valve 13 and a steam valve 8; the flow meter set includes an acid flow meter 7, a pre-leaching liquid flow meter 5, an oxygen flow meter 14, and a circulation liquid flow meter 15; a stirring motor 12, installed on the oxidation reaction tank 1, is used for mixing the solution in the oxidation reaction tank; a level gauge 10, installed on the oxidation reaction tank 1; a thermometer 9, installed on the oxidation reaction tank 1, is used to monitor the temperature of the solution in the oxidation reaction tank 1; and a pressure gauge 16, installed on the high-efficiency oxidation generator 2, is used to monitor the pressure inside the high-efficiency oxidation generator 2.

[0058] pH meter 11 is installed on oxidation reaction tank 1 to monitor the pH value of the solution in oxidation reaction tank 1. Acid flow meter 7 is installed on the pipeline between sulfuric acid transfer pump 6 and oxidation reaction tank 1. Pre-leaching liquid flow meter 5 is installed on the pipeline between pre-leaching liquid pump 4 and oxidation reaction tank 1. Liquid level gauge 10 is installed on oxidation reaction tank 1. Pressure gauge 16 is installed on high-efficiency oxidation generator 2. Circulating liquid flow meter 15 is installed on the pipeline of high-efficiency oxidation generator 2 connected to oxidation reaction tank 1. Oxygen flow meter 14 is installed on the pipeline connecting oxygen main pipe and high-efficiency oxidation generator 2. Thermometer 9 is installed on oxidation reaction tank 1 to monitor the temperature value of the solution in oxidation reaction tank 1. Oxygen valve 13 is installed on the pipeline connecting oxygen main pipe and high-efficiency oxidation generator 2. Steam valve 8 is installed on the pipeline connecting steam main pipe and oxidation reaction tank 1. Stirring motor 12 is installed on oxidation reaction tank 1. Leachate outlet 17 is installed on oxidation reaction tank 1. The central controller 18 is electrically connected to each flow meter, level gauge 10, pH meter 11, pressure gauge 16, thermometer 9, pump group, valve group, etc. It controls the leaching amount of the feed liquid in the oxidation reaction tank 1 by controlling the speed of the feed liquid on the pump.

[0059] The central controller 18 adjusts the pump speed of the sulfuric acid transfer pump 6 to regulate the amount of sulfuric acid added, using a cascade control method based on feedback values ​​from the acid flow meter 7 and pH meter 11. It also adjusts the pump speed of the pre-leaching liquid pump 4 to regulate the amount of pre-leaching liquid added, using a single-loop PID control method based on feedback values ​​from the pre-leaching liquid flow meter 5. Furthermore, it controls the steam intake of the oxygen valve 13 using a PID control method based on feedback values ​​from the oxygen flow meter 14, the circulation rate of the leaching circulation pump 3 using a PID control method based on feedback values ​​from the leaching circulation liquid flow meter 15, and the steam intake of the steam valve 8 using a PID control method based on feedback values ​​from the thermometer 9. The central controller 18 is a device with logic calculation capabilities, capable of running program code and processing data. In this embodiment, the central controller 18 is a desktop computer with a display screen for users to view relevant data. The central controller 18 controls the start and stop of the pump group and the start and stop of the stirring motor 12. The feed liquid enters the oxidation reaction tank 1 through the pre-leaching liquid pump 4, and the leaching circulating liquid enters the high-efficiency oxidation generator 2 through the leaching circulating pump 3 to complete the reaction. During this period, the measured values ​​of each flow meter, level gauge 10, pressure gauge 16, pH meter 11 and thermometer 9 are displayed in real time on the central controller 18.

[0060] In this example, the pre-leaching liquid pump 4, sulfuric acid transfer pump 6 and steam valve 8 are first turned on by the central controller 18. The pre-leaching liquid enters the oxidation reaction tank 1 and is heated and acidified. After the feedback values ​​of the level gauge 10, pH meter 11 and thermometer 9 reach the set values, the leaching circulation pump 3 is turned on and the oxygen valve 13 is opened. The qualified leaching liquid flows out through the leaching liquid outlet 17 of the oxidation reaction tank 1 to the next stage of the leaching system.

[0061] Based on the stable addition of pre-leaching solution, the pH value in oxidation reaction tank 1 is stabilized by controlling the amount of sulfuric acid added. However, due to the nonlinearity and hysteresis of pH, the control process often causes overshoot or oscillation in the system response. Therefore, the addition of sulfuric acid is controlled by cascade PID regulation.

[0062] like Figure 2As shown, the secondary loop uses flow control at the outlet of the sulfuric acid feed pump, while the primary loop uses pH control within the oxidation reaction tank 1. The secondary loop employs proportional control (P control: control that makes the output and input quantities change linearly proportionally), adjusting the outlet flow rate of the sulfuric acid feed pump to control the amount of sulfuric acid added. This quickly and promptly eliminates internal interference in the secondary loop (interference includes disturbances in the sulfuric acid flow rate adjustment loop, changes in the amount of sulfuric acid added, and other possible sources such as equipment vibration and unstable back pressure at the pump outlet), serving as a "coarse adjustment." The secondary loop of the cascade PID loop immediately enters the adjustment phase, quickly and promptly eliminating internal interference. After adjustment, it has virtually no impact on the pH value within the oxidation reaction tank 1.

[0063] The central controller system's control screen can display the operating status of each pump and valve, as well as the data from each level gauge, thermometer, pressure gauge, and pH meter. It also features alarm functions for important parameter deviations, such as pH deviation alarms, temperature deviation alarms, and sulfuric acid addition deviation alarms. It includes local control functions for pump start-up and shutdown, PID parameter settings, historical data queries, and the ability to plot historical trend curves. Furthermore, it incorporates equipment group start-up and shutdown interlocking and parameter alarm procedures, effectively ensuring the precise and stable operation of the automatic control system of this oxygen-conveying ultrasonic high-efficiency leaching device.

[0064] like Figure 3 The flowchart illustrates the usage method of the oxygen delivery ultrasonic high-efficiency leaching control system of this utility model.

[0065] like Figure 3 As shown, a method for using an oxygen-carrying ultrasonic high-efficiency leaching control system is provided. The implementation using the oxygen-carrying ultrasonic high-efficiency leaching control system described above includes the following steps:

[0066] S1. Start the sulfuric acid delivery pump 6 and the pre-leaching liquid pump 4 according to the preset program of the central controller 18 and open the steam valve 8 of the steam pipeline to allow the sulfuric acid liquid, pre-leaching liquid and steam to enter the oxidation reaction tank 1. At the same time, start the pH meter 11, each flow meter, liquid level gauge 10, thermometer 9 and stirring motor 12.

[0067] S2. Start the leaching circulation pump 3 and open the oxygen valve 13 of the oxygen pipeline according to the preset program of the central controller 18, so that the leaching liquid and oxygen enter the high-efficiency oxidation generator 2, and at the same time start the pressure gauge 16 and the circulating liquid flow meter 15.

[0068] S3, pH meter 11 monitors the pH value of the solution in oxidation reaction tank 1, each flow meter monitors the flow rate of liquid and gas in the pipeline, liquid level gauge 10 monitors the liquid height in oxidation reaction tank 1, thermometer 9 monitors the liquid temperature in oxidation reaction tank 1, pressure gauge 16 monitors the pressure in high-efficiency oxidation generator 2, and the monitoring data of pH meter 11, each flow meter, liquid level gauge 10, pressure gauge 16 and thermometer 10 are uploaded to central controller 18.

[0069] S4. The central controller 18 adjusts the pumping speed of the sulfuric acid delivery pump 6 according to the flow rate of the sulfuric acid solution to adjust the amount of sulfuric acid added. The central controller 18 adjusts the pumping speed of the pre-leaching liquid pump 4 according to the flow rate of the pre-leaching liquid to adjust the amount of pre-leaching liquid added. The central controller 18 adjusts the opening of the steam valve 8 according to the temperature of the solution in the oxidation reaction tank 1 to adjust the steam flow rate. The central controller 18 adjusts the opening of the oxygen valve 13 according to the oxygen flow rate to adjust the oxygen flow rate. The central controller 18 also adjusts the pumping speed of the sulfuric acid delivery pump 6 according to the pH value of the pH meter 11 to adjust the amount of sulfuric acid added.

[0070] S5. During production, when the input volume of the pre-leaching solution and the oxygen input volume are stable within the preset range of the central controller 18, and the pH value and temperature of the solution in the oxidation reaction tank 1 are stable within the preset range of the central controller 18, the system will stop with one key after all the pre-leaching solution has been leached through the oxidation reaction tank. The central controller 18 will stop the pump, the stirring motor 12, the oxygen valve 13, and the steam valve 8. This process will be repeated for the next leaching.

[0071] The sulfuric acid solution is controlled by a cascade control method. The secondary loop uses proportional control to adjust the outlet flow rate of the sulfuric acid feed pump to control the amount of sulfuric acid added. The main loop uses PID control to adjust the pH value of the solution in the oxidation reaction tank.

[0072] Furthermore, a pressure gauge is installed on the high-efficiency oxidation generator 2, and the central controller 18 monitors the pressure inside the high-efficiency oxidation generator 2 in real time to ensure the safety of the equipment.

[0073] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A high-efficiency ultrasonic leaching control system for oxygen delivery, characterized in that, include: Oxidation reaction tank (1); High-efficiency oxidation generator (2); Sulfuric acid transfer pump (6), the output end of which is connected to oxidation reaction tank (1); The output end of the pre-leaching liquid pump (4) is connected to the oxidation reaction tank (1); The leaching circulation pump (3) is connected to the oxidation reaction tank (1) at its input end and to the high-efficiency oxidation generator (2) at its output end. The solution in the oxidation reaction tank (1) is pumped into the high-efficiency oxidation generator (2) at a certain pressure. Steam valve (8) is installed on the connecting pipe between the steam main pipe and the oxidation reaction tank (1); A pH meter (11) is installed on the oxidation reaction tank (1) to monitor the pH value of the solution in the oxidation reaction tank (1); An acid flow meter (7) is installed on the connecting pipe between the sulfuric acid transfer pump (6) and the oxidation reaction tank (1); A pre-leaching liquid flow meter (5) is installed on the connecting pipe between the pre-leaching liquid pump (4) and the oxidation reaction tank (1); A level gauge (10) is installed on the oxidation reaction tank (1) to monitor the height of the solution in the oxidation reaction tank (1); A thermometer (9) is installed on the oxidation reaction tank (1) to monitor the temperature of the solution in the oxidation reaction tank (1); A stirring motor (12) is installed on the oxidation reaction tank (1) for mixing the solution in the oxidation reaction tank; Central controller (18).

2. The oxygen delivery ultrasonic high-efficiency leaching control system according to claim 1, characterized in that, The control system further includes: A circulating liquid flow meter (15) is installed on the connecting pipe between the outlet of the leaching circulating pump (3) and the high-efficiency oxidation generator (2); An oxygen flow meter (14) is installed on the connecting pipe between the oxygen main pipe and the high-efficiency oxidation generator (2); An oxygen valve (13) is installed on the connecting pipe between the oxygen main pipe and the high-efficiency oxidation generator (2); A pressure gauge (16) is installed on the high-efficiency oxidation generator (2) to monitor the pressure inside the high-efficiency oxidation generator (2).

3. The oxygen-conveying ultrasonic high-efficiency leaching control system according to claim 2, characterized in that, The central controller (18) is electrically connected to the sulfuric acid transfer pump (6), the pre-leaching liquid pump (4), the leaching circulation pump (3), the steam valve (8), the oxygen valve (13), the acid flow meter (7), the pre-leaching liquid flow meter (5), the oxygen flow meter (14), the circulating liquid flow meter (15), the pH meter (11), the level gauge (10), the pressure gauge (16), the thermometer (9), and the stirring motor (12).

4. The oxygen delivery ultrasonic high-efficiency leaching control system according to claim 3, characterized in that, The control system also includes alarms.

5. The oxygen delivery ultrasonic high-efficiency leaching control system according to claim 3, characterized in that, A leachate outlet (17) is provided at the top of the oxidation reactor (1).

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