Rare earth metal element extraction system

Abstract

The present invention discloses a rare earth metal element extraction system, and relates to the technical field of rare earth treatment, the rare earth metal element extraction system comprises: a raw material pretreatment module, which is used for carrying out early-stage preparation, including but not limited to crushing and grinding, on a raw material containing rare earth metal elements so as to change the physical form of the raw material and improve the subsequent extraction efficiency; and the extraction reaction module is used for separating rare earth metal elements from other impurities in the raw materials through chemical reaction and physical adsorption by applying an extraction agent. The raw material pretreatment module is used for precisely treating raw materials and improving the subsequent reaction efficiency, the extraction reaction module is used for scientifically blending an extraction agent and precisely controlling reaction conditions, the extraction effect and the product purity are remarkably improved, the separation and purification module is used for effectively removing impurities and recycling a waste extraction agent, and the aims of resource utilization and environmental protection are achieved; the monitoring control module can collect, analyze and regulate parameters in real time, automatic operation is achieved, and production efficiency and stability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rare earth processing, in particular to an extraction system for rare earth metal elements. Background Art

[0002] In the field of rare earth metal extraction, with the growing demand for rare earths in various industries and the increasing requirements for product quality and environmental protection, extraction technology continues to iterate. Although traditional extraction systems can complete basic operations such as crushing in raw material processing, in the face of increasingly diverse raw material characteristics, more targeted optimization methods are needed to further improve the adaptability of raw materials and create more favorable conditions for subsequent extraction reactions. During the extraction reaction process, the existing extraction agent formulation methods and reaction condition control methods have room for improvement in terms of accuracy and efficiency. They are unable to fully meet the complex and changing needs of rare earth extraction, limiting the further improvement of extraction effect and product purity. In the separation and purification process, current technologies still have room for improvement in meeting the requirements for high-precision solution purification, as well as more efficient waste extractant treatment and resource recycling. Furthermore, with the advancement of industrial automation and intelligentization, traditional extraction systems that rely heavily on manual monitoring and control are no longer fully adapting to the pace of modern production in terms of production efficiency, stability, and timely fault response. Summary of the Invention

[0003] In order to solve the above technical problems, a rare earth metal element extraction system is provided. This technical solution solves the above problems.

[0004] In order to achieve the above objects, the technical solution adopted by the present invention is: A rare earth metal extraction system, comprising: Raw material pretreatment module: used for the preliminary preparation of raw materials containing rare earth metal elements, including but not limited to crushing and grinding, to change the physical form of the raw materials and improve the subsequent extraction efficiency; Extraction reaction module: uses extractants to separate rare earth metal elements from other impurities in raw materials through chemical reactions and physical adsorption; Separation and purification module: Through separation technology, the mixed liquid after extraction is separated to obtain pure rare earth metal solution, and the remaining impurities and waste extractant are processed; Intelligent monitoring and control module: monitors various parameters of the entire extraction process in real time, including reaction progress, solution concentration, and equipment operating status, and automatically controls the system to ensure the extraction process is efficient and stable. It includes a parameter acquisition unit, a data analysis unit, and a control execution unit.

[0005] Preferably, the raw material pretreatment module specifically includes: Crushing unit: Use jaw crusher to crush bulk raw materials to reduce the particle size, and then use ball mill for fine grinding; Pretreatment additive adding unit: According to the characteristics of the raw materials, specific pretreatment additives are added, including grinding aids and dispersants. The grinding aids can reduce the hardness of the raw materials and improve the crushing efficiency. The dispersants can make the raw materials more evenly dispersed in the subsequent processing process and enhance the reaction effect.

[0006] Preferably, the extraction reaction module specifically includes: Extractant preparation unit: prepares the composition and concentration of the extractant according to the type and content of the rare earth metal elements to be extracted. The extractant is a mixture of multiple organic compounds. Reaction vessel unit: The reaction vessel is made of corrosion-resistant material, has stirring blades inside, and is equipped with a heating and cooling system.

[0007] Preferably, the separation and purification module specifically includes: Primary filtration unit: A multi-layer filtration device with gradually decreasing filter mesh aperture is used. Larger particles of impurities are first intercepted by a coarse filter, and then small particles are further removed by a fine filter to ensure the initial purification of the solution. Centrifugal separation unit: Using a centrifuge, the rare earth metal solution is separated from impurities and residual extractants of different densities based on the density differences of different components in the solution; Distillation purification unit: The solution after centrifugal separation is subjected to distillation purification. By controlling the distillation temperature and pressure, low-boiling point impurities are evaporated and separated first to obtain a rare earth metal-containing solution.

[0008] Preferably, the separation and purification module further includes: Waste extractant recovery and processing unit: The metal ion impurities in the waste extractant remaining after separation are removed by chemical precipitation. The amount of precipitant added is calculated in real time based on the metal ion concentration in the solution. The waste extractant after precipitation is purified by distillation technology so that it can be reused in the extraction reaction.

[0009] Preferably, the intelligent monitoring and control module specifically includes: Parameter acquisition unit: Various sensors are installed at key locations of the system to collect reaction temperature, pressure, and solution concentration parameters in real time, and transmit the data to the data analysis unit; Data analysis unit: Use data analysis algorithms to process and analyze the collected data to determine whether the extraction process is operating normally, and predict the reaction progress and product quality by establishing mathematical models. If any abnormality is found, timely control instructions will be issued to the control execution unit.

[0010] Preferably, the control execution unit specifically includes: Flow control device: By controlling the opening of the pipeline valve, the flow of raw materials, extractants and various additives is accurately adjusted to ensure that the proportion of each substance in the reaction process meets the process requirements. The valve opening is automatically controlled by the instructions of the data analysis unit; Temperature and pressure control device: According to the instructions of the data analysis unit, it automatically adjusts the heating, cooling equipment and pressure regulating device to maintain the temperature and pressure in the reaction vessel within the set range.

[0011] Preferably, the intelligent monitoring and control module further includes: Fault diagnosis and early warning unit: Through real-time monitoring and analysis of equipment operating parameters, when the parameters exceed the normal range, the system automatically issues an early warning signal and combines the fault diagnosis model to quickly locate the cause of the fault.

[0012] Preferably, the fault diagnosis and early warning unit adopts the following fault judgment formula: Assume that the standard value of a parameter during normal operation is , the real-time monitoring value is , set the threshold to ,when When the device fails, it is determined that the device has failed and an early warning is triggered.

[0013] Preferably, the threshold The following steps are followed for the setup: Collect the equipment's own historical operating data, basic technical data provided by the equipment manufacturer, and the accumulated experience data of similar equipment in the industry under similar working conditions to build a multi-dimensional data set; Using data analysis methods, we deeply analyze the inherent relationship between the collected data. For different parameters such as temperature, pressure, and solution concentration, we associate them with factors such as equipment performance tolerance range, process standard range, and process fluctuation characteristics, and determine the threshold value of each parameter accordingly. Reasonable deviation range from normal operating mean; Based on the aging of the equipment throughout its life cycle, continuous process improvement and new data feedback, the threshold value is regularly adjusted. Conduct reviews and evaluations, dynamically adjust and optimize thresholds, and maintain the accuracy and effectiveness of fault diagnosis and early warning functions.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The rare earth metal element extraction system of the present invention accurately processes raw materials through the raw material pretreatment module to improve the efficiency of subsequent reactions. The extraction reaction module scientifically adjusts the extraction agent and accurately controls the reaction conditions to significantly improve the extraction effect and product purity. The separation and purification module effectively removes impurities and recycles waste extraction agents to achieve resource utilization and environmental protection goals. The monitoring and control module can collect, analyze and adjust parameters in real time to achieve automated operation and improve production efficiency and stability. The fault diagnosis and early warning unit uses scientific methods to timely warn and locate faults, reduce downtime, and ensure production continuity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Flowchart of the present invention. DETAILED DESCRIPTION

[0016] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0017] Reference Figure 1 As shown, a rare earth metal extraction system comprises: Raw material pretreatment module: used for the preliminary preparation of raw materials containing rare earth metal elements, including but not limited to crushing and grinding, to change the physical form of the raw materials and improve the subsequent extraction efficiency; Extraction reaction module: uses extractants to separate rare earth metal elements from other impurities in raw materials through chemical reactions and physical adsorption; Separation and purification module: Through separation technology, the mixed liquid after extraction is separated to obtain pure rare earth metal solution, and the remaining impurities and waste extractant are processed; Intelligent monitoring and control module: monitors various parameters of the entire extraction process in real time, including reaction progress, solution concentration, and equipment operating status, and automatically controls the system to ensure the extraction process is efficient and stable. It includes a parameter acquisition unit, a data analysis unit, and a control execution unit.

[0018] Specifically, the entire system is composed of a raw material pretreatment module, an extraction reaction module, a separation and purification module, and an intelligent monitoring and control module. The raw material pretreatment module performs preliminary processing on rare earth-containing raw materials to change their physical form. The extraction reaction module uses an extractant to separate rare earths from impurities through chemical reactions and physical adsorption. The separation and purification module uses a variety of technologies to separate the extracted mixed liquid and treat the waste extractant. The intelligent monitoring and control module monitors and automatically adjusts the parameters of each link in real time. Through the organic combination of these modules, a complete, efficient, and intelligent rare earth metal element extraction system has been constructed, greatly improving the overall efficiency of the extraction process, product purity, and system stability, meeting the diverse needs of rare earth extraction in different application scenarios.

[0019] The raw material pretreatment module specifically includes: Crushing unit: Use jaw crusher to crush bulk raw materials to reduce the particle size, and then use ball mill for fine grinding; Pretreatment additive adding unit: According to the characteristics of the raw materials, specific pretreatment additives are added, including grinding aids and dispersants. The grinding aids can reduce the hardness of the raw materials and improve the crushing efficiency. The dispersants can make the raw materials more evenly dispersed in the subsequent processing process and enhance the reaction effect.

[0020] Specifically, a jaw crusher is used first. Its working principle is that the movable jaw plate performs periodic reciprocating motion relative to the fixed jaw plate, squeezing and splitting the bulk material between them, thereby initially reducing the material particle size. Subsequently, a ball mill uses the impact and grinding action of grinding media (such as steel balls) within the cylinder to further refine the material particle size, bringing it to a range suitable for subsequent extraction reactions. This provides a more suitable raw material form for subsequent extraction reactions, increases the contact area between the raw material and the extractant, significantly improves the extraction reaction rate and efficiency, and increases the extraction rate of rare earth elements.

[0021] Grinding aids are generally surfactants that adsorb onto the surface of raw material particles, reducing their surface energy and weakening the cohesive forces between particles, thereby reducing raw material hardness, facilitating the pulverization process, and improving pulverization efficiency. Dispersants form an adsorption layer on the surface of raw material particles, increasing the electrostatic repulsion or steric hindrance between particles, allowing the raw materials to be more evenly dispersed during subsequent processing and preventing agglomeration. Grinding aids reduce energy consumption and time during the pulverization process, increasing equipment capacity. Dispersants ensure the uniformity of raw materials in subsequent processes, enhancing reaction efficiency, and further improving the quality and stability of rare earth extraction.

[0022] The extraction reaction module specifically includes: Extractant preparation unit: prepares the composition and concentration of the extractant according to the type and content of the rare earth metal elements to be extracted. The extractant is a mixture of multiple organic compounds. Reaction vessel unit: The reaction vessel is made of corrosion-resistant material, has stirring blades inside, and is equipped with a heating and cooling system.

[0023] Specifically, based on the chemical properties of different rare earth metal elements, their content in the raw materials and the characteristics of the extraction reaction, the composition and concentration of the extractant, which is a mixture of multiple organic compounds, are accurately calculated and formulated. Different rare earth elements require extractants of specific composition and concentration to achieve efficient separation. Through precise formulation, the extractant can undergo selective chemical reaction or physical adsorption with the target rare earth element, significantly improving the selectivity and efficiency of the extraction, and can more effectively separate rare earth metal elements from other impurities in the raw materials, thereby improving product purity, reducing unnecessary impurity mixing, and reducing the difficulty of subsequent separation and purification. The reaction vessel is constructed of corrosion-resistant materials, such as stainless steel containing nickel, chromium, and other alloys, to resist corrosion from the extractant and corrosive substances generated during the reaction. The internal stirring blades, driven by a motor, rotate to thoroughly mix the raw materials and extractant, accelerating mass transfer. The heating and cooling systems precisely control the reaction temperature through heat exchange, providing optimal thermodynamic conditions for the extraction reaction. The corrosion-resistant materials ensure the lifespan of the reaction vessel and reduce equipment maintenance costs. The stirring blades and temperature control system work together to optimize reaction conditions, promoting a rapid and thorough extraction reaction, improving reaction efficiency and product quality, and ensuring the stability and reliability of the extraction process.

[0024] The separation and purification module specifically includes: Primary filtration unit: A multi-layer filtration device with gradually decreasing filter mesh aperture is used. Larger particles of impurities are first intercepted by a coarse filter, and then small particles are further removed by a fine filter to ensure the initial purification of the solution. Centrifugal separation unit: Using a centrifuge, the rare earth metal solution is separated from impurities and residual extractants of different densities based on the density differences of different components in the solution; Distillation purification unit: The solution after centrifugal separation is subjected to distillation purification. By controlling the distillation temperature and pressure, low-boiling point impurities are evaporated and separated first to obtain a rare earth metal-containing solution.

[0025] Specifically, the multi-layer filtration device consists of a coarse filter and a fine filter. The coarse filter has a larger pore size and first intercepts larger impurities in the raw material, such as sand and gravel, and incompletely crushed bulk materials. As the mixed liquid passes through the fine filter with gradually decreasing pore size, smaller impurities are further intercepted. Based on the particle size screening effect of the filter with different pore sizes, the solution is initially purified, effectively removing large and small particles from the mixed liquid, providing a purer raw material for subsequent centrifugal separation and distillation purification. The centrifuge uses the centrifugal force generated by high-speed rotation to cause components of different densities in the mixed liquid to produce different centrifugal accelerations. Impurities and residual extractants with higher density move outward under the action of centrifugal force, while rare earth metal solutions with relatively lower density gather in the central area, thereby achieving separation based on density differences. The rare earth metal solution can be efficiently separated from impurities and residual extractants with different densities, further improving the purity of the solution and providing better quality raw materials for distillation purification. For the solution after centrifugal separation, distillation and purification are carried out by utilizing the difference in boiling points of different substances. By precisely controlling the distillation temperature and pressure, the low-boiling-point impurities reach the boiling point and evaporate and separate first, while the rare earth metal solution remains in the liquid phase due to its higher boiling point, thereby achieving further purification. The low-boiling-point impurities remaining in the solution can be effectively removed, greatly improving the purity of the final rare earth metal solution obtained, and meeting the strict requirements for rare earth purity in high-end application fields.

[0026] The separation and purification module also includes: Waste extractant recovery and processing unit: The metal ion impurities in the waste extractant remaining after separation are removed by chemical precipitation. The amount of precipitant added is calculated in real time based on the metal ion concentration in the solution. The waste extractant after precipitation is purified by distillation technology so that it can be reused in the extraction reaction.

[0027] Specifically, first, a proper amount of precipitant is added to the waste extractant through a chemical precipitation method. The precipitant reacts chemically with the metal ions in the waste extractant to generate an insoluble metal precipitate. The amount of precipitant added is determined by the concentration of metal ions in the solution to ensure that the precipitation reaction proceeds fully. Then, distillation technology is used to heat and distill the precipitated waste extractant by utilizing the difference in boiling points of different substances to separate the useful components therein and purify them, thereby realizing efficient recovery and reuse of the waste extractant, saving resources, reducing production costs, and reducing environmental pollution caused by the discharge of waste extractants.

[0028] The intelligent monitoring and control module specifically includes: Parameter acquisition unit: Various sensors are installed at key locations of the system to collect reaction temperature, pressure, and solution concentration parameters in real time, and transmit the data to the data analysis unit; Data analysis unit: Use data analysis algorithms to process and analyze the collected data to determine whether the extraction process is operating normally, and predict the reaction progress and product quality by establishing mathematical models. If any abnormality is found, timely control instructions will be issued to the control execution unit.

[0029] Specifically, various sensors such as temperature sensors, pressure sensors, solution concentration sensors, etc. are installed in key parts of the system, such as reaction vessels, pipelines, and separation equipment, to provide the system with comprehensive, real-time, and accurate data support, so that subsequent data analysis and regulation have a reliable basis, and can promptly reflect the operating status of each link of the system, which helps to promptly discover potential problems and take corresponding measures to ensure the stable operation of the system.

[0030] Data analysis algorithms are used to process and analyze the vast amounts of collected data. By comparing this data with preset normal operating parameter ranges and mathematical models, the system determines whether the extraction process is operating properly. Simultaneously, mathematical models are established based on historical and real-time data to simulate reaction progress and predict product quality. This system can accurately and timely determine the system's operating status, predict reaction progress and product quality in advance, and provide scientific control instructions to the control execution unit, enabling intelligent system operation, improving production efficiency, and ensuring stable and consistent product quality.

[0031] The control execution unit specifically includes: Flow control device: By controlling the opening of the pipeline valve, the flow of raw materials, extractants and various additives is accurately adjusted to ensure that the proportion of each substance in the reaction process meets the process requirements. The valve opening is automatically controlled by the instructions of the data analysis unit; Temperature and pressure control device: According to the instructions of the data analysis unit, it automatically adjusts the heating, cooling equipment and pressure regulating device to maintain the temperature and pressure in the reaction vessel within the set range.

[0032] Specifically, the flow control device primarily consists of an electric valve and a controller. The controller receives instructions from the data analysis unit and controls the opening of the electric valve to change the cross-sectional area of the fluid in the pipeline, thereby precisely adjusting the flow of raw materials, extractants, and various additives. A mathematical relationship exists between valve opening and flow rate, and precise control of the valve opening enables precise flow control. This ensures that the ratio of each substance in the reaction strictly meets process requirements, provides stable and accurate material conditions for the extraction reaction, avoids low reaction efficiency or unstable product quality caused by improper material ratios, and improves reaction controllability and product quality.

[0033] The temperature control device regulates the temperature within the reaction vessel by controlling the heating power of the heating device or the cooling capacity of the cooling device. The pressure control device adjusts the gas inlet and outlet flow rates within the reaction vessel by controlling the opening of the pressure regulating valve, thereby maintaining the pressure within the reaction vessel within a set range. These adjustments are performed automatically based on instructions issued by the data analysis unit. Precisely maintaining the temperature and pressure within the reaction vessel within the appropriate range provides stable thermodynamic and kinetic conditions for the extraction reaction, promoting efficient and stable reaction progress, improving product quality and production efficiency, and reducing the risk of product quality problems and equipment failures caused by temperature and pressure fluctuations.

[0034] The intelligent monitoring and control module also includes: Fault diagnosis and early warning unit: Through real-time monitoring and analysis of equipment operating parameters, when the parameters exceed the normal range, the system automatically issues an early warning signal and combines the fault diagnosis model to quickly locate the cause of the fault.

[0035] The fault diagnosis and early warning unit adopts the following fault judgment formula: Assume that the standard value of a parameter during normal operation is , the real-time monitoring value is , set the threshold to ,when When the device fails, it is determined that the device has failed and an early warning is triggered.

[0036] The threshold The following steps are followed for the setup: Collect the equipment's own historical operating data, basic technical data provided by the equipment manufacturer, and the accumulated experience data of similar equipment in the industry under similar working conditions to build a multi-dimensional data set; Using data analysis methods, we deeply analyze the inherent relationship between the collected data. For different parameters such as temperature, pressure, and solution concentration, we associate them with factors such as equipment performance tolerance range, process standard range, and process fluctuation characteristics, and determine the threshold value of each parameter accordingly. Reasonable deviation range from normal operating mean; Based on the aging of the equipment throughout its life cycle, continuous process improvement and new data feedback, the threshold value is regularly adjusted. Conduct reviews and evaluations, dynamically adjust and optimize thresholds, and maintain the accuracy and effectiveness of fault diagnosis and early warning functions.

[0037] Specifically, the system collects equipment operating parameters in real time, such as motor current, vibration, and pipeline pressure changes. When these parameters exceed pre-set normal ranges, the system automatically issues a warning signal. Simultaneously, the system integrates a fault diagnosis model based on historical fault data and equipment operating principles. By analyzing abnormal parameters, the system can quickly locate the cause of the fault, such as component wear, sensor failure, or abnormal process parameters. This allows for the timely detection of potential equipment failures and early warning, enabling operators to take timely maintenance and repair measures. This significantly reduces equipment downtime, minimizes production losses, improves system reliability and stability, and ensures production continuity.

[0038] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the invention as claimed.

Claims

1. A rare earth metal extraction system, characterized in that: include: Raw material pretreatment module: used for the preliminary preparation of raw materials containing rare earth metal elements, including but not limited to crushing and grinding, to change the physical form of the raw materials and improve the subsequent extraction efficiency; Extraction reaction module: uses extractants to separate rare earth metal elements from other impurities in raw materials through chemical reactions and physical adsorption; Separation and purification module: Through separation technology, the mixed liquid after extraction is separated to obtain pure rare earth metal solution, and the remaining impurities and waste extractant are processed; Intelligent monitoring and control module: monitors various parameters of the entire extraction process in real time, including reaction progress, solution concentration, and equipment operating status, and automatically controls the system to ensure the extraction process is efficient and stable. It includes a parameter acquisition unit, a data analysis unit, and a control execution unit.

2. The rare earth metal extraction system according to claim 1, characterized in that: The raw material pretreatment module specifically includes: Crushing unit: Use jaw crusher to crush bulk raw materials to reduce the particle size, and then use ball mill for fine grinding; Pretreatment additive adding unit: According to the characteristics of the raw materials, specific pretreatment additives are added, including grinding aids and dispersants. The grinding aids can reduce the hardness of the raw materials and improve the crushing efficiency. The dispersants can make the raw materials more evenly dispersed in the subsequent processing process and enhance the reaction effect.

3. The rare earth metal extraction system according to claim 1, characterized in that: The extraction reaction module specifically includes: Extractant preparation unit: prepares the composition and concentration of the extractant according to the type and content of the rare earth metal elements to be extracted. The extractant is a mixture of multiple organic compounds. Reaction vessel unit: The reaction vessel is made of corrosion-resistant material, has stirring blades inside, and is equipped with a heating and cooling system.

4. The rare earth metal extraction system according to claim 1, characterized in that: The separation and purification module specifically includes: Primary filtration unit: A multi-layer filtration device with gradually decreasing filter mesh aperture is used. Larger particles of impurities are first intercepted by a coarse filter, and then small particles are further removed by a fine filter to ensure the initial purification of the solution. Centrifugal separation unit: Using a centrifuge, the rare earth metal solution is separated from impurities and residual extractants of different densities based on the density differences of different components in the solution; Distillation purification unit: The solution after centrifugal separation is subjected to distillation purification. By controlling the distillation temperature and pressure, low-boiling point impurities are evaporated and separated first to obtain a rare earth metal-containing solution.

5. The rare earth metal extraction system according to claim 1, characterized in that: The separation and purification module also includes: Waste extractant recovery and processing unit: The metal ion impurities in the waste extractant remaining after separation are removed by chemical precipitation. The amount of precipitant added is calculated in real time based on the metal ion concentration in the solution. The waste extractant after precipitation is purified by distillation technology so that it can be reused in the extraction reaction.

6. The rare earth metal extraction system according to claim 1, characterized in that: The intelligent monitoring and control module specifically includes: Parameter acquisition unit: Various sensors are installed at key locations of the system to collect reaction temperature, pressure, and solution concentration parameters in real time, and transmit the data to the data analysis unit; Data analysis unit: Use data analysis algorithms to process and analyze the collected data to determine whether the extraction process is operating normally, and predict the reaction progress and product quality by establishing mathematical models. If any abnormality is found, timely control instructions will be issued to the control execution unit.

7. The rare earth metal extraction system according to claim 6, characterized in that: The control execution unit specifically includes: Flow control device: By controlling the opening of the pipeline valve, the flow of raw materials, extractants and various additives is accurately adjusted to ensure that the proportion of each substance in the reaction process meets the process requirements. The valve opening is automatically controlled by the instructions of the data analysis unit; Temperature and pressure control device: According to the instructions of the data analysis unit, it automatically adjusts the heating, cooling equipment and pressure regulating device to maintain the temperature and pressure in the reaction vessel within the set range.

8. The rare earth metal extraction system according to claim 1, characterized in that: The intelligent monitoring and control module also includes: Fault diagnosis and early warning unit: Through real-time monitoring and analysis of equipment operating parameters, when the parameters exceed the normal range, the system automatically issues an early warning signal and combines the fault diagnosis model to quickly locate the cause of the fault.

9. The rare earth metal extraction system according to claim 8, characterized in that: The fault diagnosis and early warning unit adopts the following fault judgment formula: Assume that the standard value of a parameter during normal operation is , the real-time monitoring value is , set the threshold to ,when When the device fails, it is determined that the device has failed and an early warning is triggered.

10. The rare earth metal extraction system according to claim 9, characterized in that: The threshold The following steps are followed for the setup: Collect the equipment's own historical operating data, basic technical data provided by the equipment manufacturer, and the accumulated experience data of similar equipment in the industry under similar working conditions to build a multi-dimensional data set; Using data analysis methods, we deeply analyze the inherent relationship between the collected data. For different parameters such as temperature, pressure, and solution concentration, we associate them with factors such as equipment performance tolerance range, process standard range, and process fluctuation characteristics, and determine the threshold value of each parameter accordingly. Reasonable deviation range from normal operating mean; Based on the aging of the equipment throughout its life cycle, continuous process improvement and new data feedback, the threshold value is regularly adjusted. Conduct reviews and evaluations, dynamically adjust and optimize thresholds, and maintain the accuracy and effectiveness of fault diagnosis and early warning functions.

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