Novel RH furnace mode steelmaking method

Abstract

The invention relates to the technical field of data processing, in particular to a novel RH furnace mode steelmaking method. The method comprises the following steps that RH furnace smelting steel grade information data and RH furnace smelting historical production experience data are obtained, steel grade smelting demand analysis and smelting condition design are conducted on the RH furnace smelting steel grade information data, and RH furnace steel grade production smelting demand conditions are obtained; performing circulation and vacuum pump control parameter generation processing on a circulation system and a vacuum pump system of the RH furnace based on historical production empirical data of RH furnace smelting, and summarizing process parameters to obtain an RH furnace mode steelmaking process parameter table; according to the RH furnace mode steelmaking process parameter table, control programming processing is conducted, HMI control interface manufacturing processing is conducted through WINCC, RH furnace steelmaking control interfaces of different processing modes are generated, and corresponding RH furnace processing mode steelmaking operation is executed. The whole-process linkage control of the circulation system and the vacuum pump system can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of data processing, and in particular to a novel RH furnace mode steelmaking method. Background Art

[0002] The traditional RH furnace is composed of a vacuum pump system, a hydraulic ladle lifting system, a ladle car travel system, a top gun and preheating gun system, a feeding system, a circulation system, and a cooling water system. Its control system is composed of a basic automation control system composed of Siemens S7-400 series PLC. However, each subsystem in the developed control software can only be independently controlled manually or automatically, which easily introduces more human intervention during the operation of the RH furnace, and it is impossible to achieve linkage control of the circulation system and the vacuum pump system according to different steel grades. Summary of the invention

[0003] Based on this, it is necessary for the present invention to provide a novel RH furnace mode steelmaking method to solve at least one of the above technical problems.

[0004] To achieve the above object, a novel RH furnace mode steelmaking method comprises the following steps:

[0005] Step S1: obtaining RH furnace smelting steel grade information data and RH furnace smelting historical production experience data, and performing steel grade smelting demand analysis on the RH furnace smelting steel grade information data to obtain RH furnace production smelting demand information data of different steel grades; performing smelting condition design processing on the RH furnace production smelting demand information data of different steel grades to obtain RH furnace steel grade production smelting demand conditions, wherein the RH furnace steel grade production smelting demand conditions include the production of ultra-low carbon steel grades, the production of steel grades with a certain degree of decarburization and impurity removal, the production of steel grades with standard composition performance requirements, and the production of steel grades requiring deep decarburization and true air conditioning composition;

[0006] Step S2: judging and analyzing the steel production and smelting demand conditions of the RH furnace. If the steel production and smelting demand conditions of the RH furnace are to produce ultra-low carbon steel, the steelmaking working mode of the RH furnace is set to the deep decarburization treatment mode, and the circulation and vacuum pump control parameters of the RH furnace are generated based on the historical production experience data of the RH furnace smelting to obtain the circulation system control parameters and vacuum pump system control parameters in the deep decarburization treatment mode;

[0007] Step S3: If the RH furnace steel production smelting requirement is to produce steel with a certain degree of decarburization and impurity removal, the steelmaking working mode of the RH furnace is set to the light processing mode, and the circulation and vacuum pump control parameters of the RH furnace are generated based on the historical production experience data of the RH furnace smelting to obtain the circulation system control parameters and vacuum pump system control parameters in the light processing mode;

[0008] Step S4: if the RH furnace steel grade production smelting requirement condition is to produce steel grades with standard composition performance requirements, the steelmaking working mode of the RH furnace is set to this processing mode, and the circulation and vacuum pump control parameters of the RH furnace are generated based on the historical production experience data of the RH furnace smelting to obtain the circulation system control parameters and vacuum pump system control parameters under this processing mode;

[0009] Step S5: If the RH furnace steel grade production smelting demand condition is to produce steel grades that require deep decarburization and vacuum conditioning composition, the steelmaking working mode of the RH furnace is set to the deep decarburization pump-back processing mode, and the RH furnace is subjected to circulation and vacuum pump control parameter generation processing based on the RH furnace smelting historical production experience data to obtain the circulation system control parameters and vacuum pump system control parameters in the deep decarburization pump-back processing mode;

[0010] Step S6: Summarize the process parameters of the circulation system control parameters and vacuum pump system control parameters in the deep decarburization treatment mode, the circulation system control parameters and vacuum pump system control parameters in the light treatment mode, the circulation system control parameters and vacuum pump system control parameters in the present treatment mode, and the circulation system control parameters and vacuum pump system control parameters in the deep decarburization de-pumping treatment mode to obtain the RH furnace mode steelmaking process parameter table; write the control program according to the RH furnace mode steelmaking process parameter table, and use WINCC to make the HMI control interface to generate the RH furnace steelmaking control interface of different treatment modes to execute the corresponding RH furnace treatment mode steelmaking operation.

[0011] The present invention firstly acquires RH furnace smelting steel grade information data and historical production experience data, and can establish a comprehensive data foundation for analyzing and optimizing the RH furnace smelting process. These data include different smelting steel grade information required in the RH furnace smelting process and the smelting historical production records of each steel grade, which can help understand the properties, characteristics and performance of different steel grades in the actual production process. By analyzing the steel grade smelting demand of the RH furnace smelting steel grade information data according to the different chemical composition information of the smelting steel grade, the special requirements and needs of each steel grade in the smelting process can be understood. Such an analysis process helps to determine the smelting optimization plan and target of each steel grade, and determine the specific needs of each steel grade in the RH furnace smelting process, which includes the analysis and optimization of the composition control requirements, degassing, impurity removal and other process parameters of different steel grades, thereby providing guidance for the subsequent smelting condition design and processing process of the corresponding smelting steel grade. In addition, by designing and processing the smelting conditions of the RH furnace production and smelting demand information data of different steel grades, the special requirements of various steel grades can be met. These requirements may include the production of ultra-low carbon steel grades, steel grades that require a certain degree of decarburization and impurity removal, steel grades that meet specific component performance requirements, and steel grades that require deep decarburization and vacuum conditioning. Through reasonable design of smelting conditions, the expected product quality and performance goals can be achieved, thereby providing basic data guarantee for the subsequent RH furnace circulation system and vacuum pump system parameter control. At the same time, by judging and analyzing the RH furnace steel grade production and smelting demand conditions, if it is found that ultra-low carbon steel grades need to be produced, the steelmaking working mode of the RH furnace needs to be set to the deep decarburization treatment mode. Such adjustments can ensure that the carbon content of the steel grade meets the requirements and reaches the expected ultra-low carbon content level to meet the requirements of steel performance in specific application fields. Based on the historical production experience data of RH furnace smelting, the circulation system and vacuum pump system of the RH furnace are processed for the circulation and vacuum pump control parameters. Such a processing process can determine the specific control parameters of the circulation system and vacuum pump system in the deep decarburization treatment mode in a certain time period according to the historical experience data, so as to ensure the stable operation of the system, thereby improving the efficiency and accuracy of deep decarburization of steel grades, which is helpful to improve the stability and controllability of the RH furnace production process, and ensure that the quality and performance of steel meet the expected requirements. Secondly, by judging the production and smelting requirements of RH furnace steel grades, if the production and smelting requirements of RH furnace steel grades are to produce steel grades with a certain degree of decarburization and impurity removal, the steelmaking working mode of the RH furnace is set to the light processing mode, which is conducive to the production of steel grades that require a certain degree of decarburization and impurity removal, and can adopt a more relaxed and efficient processing method. Such a setting can ensure that while meeting the product quality requirements, the consumption of energy and resources is minimized and production efficiency is improved.The circulation system and vacuum pump system of the RH furnace are processed by generating circulation and vacuum pump control parameters based on the historical production experience data of the RH furnace smelting. The significance of this step is to generate control parameters corresponding to the circulation system and vacuum pump system in the light processing mode according to the production experience data of the light processing mode, so as to ensure that the circulation system and vacuum pump system can operate stably in the light processing mode to meet the production needs, thereby providing the required vacuum degree and circulation flow. Then, by judging the production and smelting demand conditions of the RH furnace steel grade, if the production and smelting demand conditions of the RH furnace steel grade are for the production of steel grades with standard composition performance requirements, the steelmaking working mode of the RH furnace is set to this processing mode, so that it has a significant effect when producing steel grades with standard composition performance requirements. This processing mode can finely control the process parameters in the furnace according to the composition performance requirements of the product to ensure that the composition of the steel grade meets the standard, thereby improving the product quality and process stability of the corresponding steel grade. And by generating and processing the circulation and vacuum pump control parameters of the circulation system and vacuum pump system of the RH furnace based on the historical production experience data of RH furnace smelting, the purpose of this step is to generate the control parameters corresponding to the circulation system and vacuum pump system in the mode within a certain time period according to the production experience data under this processing mode, so as to ensure that the circulation system and vacuum pump system can operate stably and meet the product composition performance requirements, thereby ensuring the stability and accuracy of the vacuum degree and circulation flow of the RH furnace under this processing mode. Next, by judging the RH furnace steel production and smelting demand conditions, if the RH furnace steel production and smelting demand conditions are to produce steel that requires deep decarburization and vacuum adjustment of composition, the steelmaking working mode of the RH furnace is set to the deep decarburization pump removal processing mode, which has a significant effect on the production of steel that requires deep decarburization and vacuum adjustment of composition. In this processing mode, the RH furnace can more effectively achieve deep decarburization, and at the same time, the composition is accurately adjusted through the vacuum system to meet the specific needs of steel production, thereby improving product quality and process stability. And based on the historical production experience data of RH furnace smelting, the circulation system and vacuum pump system of the RH furnace are processed for circulation and vacuum pump control parameters. The purpose of this step is to generate corresponding control parameters for the circulation system and vacuum pump system in a certain time period according to the production experience data under the deep decarburization and de-pumping treatment mode, so as to ensure that the circulation system and vacuum pump system can operate stably and meet the deep decarburization requirements of the product. This can more accurately meet the requirements of deep decarburization and composition adjustment of steel grades, thereby ensuring the stability and accuracy of the vacuum degree and flow rate of the RH furnace under the deep decarburization and de-pumping treatment mode, and improving production efficiency and product quality.Finally, by integrating the circulation system control parameters and vacuum pump system control parameters under different processing modes, a comprehensive steelmaking process parameter table is obtained. This steelmaking process parameter table contains the key parameters of the RH furnace under different processing modes, such as the circulation flow parameters and vacuum pump parameters that need to be controlled in different time periods. This can provide accurate guidance for the subsequent control program writing and operation, thereby ensuring good control and stability of the RH furnace conditions. In addition, the control program is written and processed using step7 programming software according to the RH furnace mode steelmaking process parameter table. The key to this step is to be able to write steelmaking control programs that can achieve the production needs of steel grades under different processing modes according to the guidance of the process parameter table. These programs can automatically control the various production processing modes of the RH furnace to ensure that the smelting process of steel grades under different processing modes meets the expected requirements. By using WINCC software to produce HMI (human-machine interaction) control interface for RH furnace steelmaking control program of different processing modes, the RH furnace steelmaking control interface of different processing modes is generated. The key of this step is that through the generated human-machine interaction control interface, the operator can intuitively monitor and control the various parameters and operations of the RH furnace in different processing modes, including circulation flow, vacuum pump, etc. Such a control interface can improve the work efficiency and operation accuracy of the operator, ensure the reliability and stability of the conditions in the RH furnace and the smelting process, so as to realize the whole process linkage control of the vacuum pump system and the circulation system in the RH furnace according to the conditions of different steel grades. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments thereof made with reference to the following drawings:

[0013] Figure 1 It is a schematic flow chart of the steps of the novel RH furnace mode steelmaking method of the present invention;

[0014] Figure 2 for Figure 1 Detailed step flow diagram of step S1;

[0015] Figure 3 for Figure 2 Detailed step flow diagram of step S13;

[0016] Figure 4 It is a schematic diagram of some control parameters of the RH furnace mode steelmaking process parameter table of the present invention. DETAILED DESCRIPTION

[0017] The following is a clear and complete description of the technical method of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In addition, the accompanying drawings are only schematic illustrations of the present invention and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. The functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor methods and / or microcontroller methods.

[0019] It should be understood that, although the terms "first", "second", etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are used only to distinguish one unit from another unit. For example, without departing from the scope of the exemplary embodiments, the first unit may be referred to as the second unit, and similarly the second unit may be referred to as the first unit. The term "and / or" used herein includes any and all combinations of one or more of the listed associated items.

[0020] To achieve this, please refer to Figures 1 to 3 The present invention provides a novel RH furnace mode steelmaking method, the method comprising the following steps:

[0021] Step S1: obtaining RH furnace smelting steel grade information data and RH furnace smelting historical production experience data, and performing steel grade smelting demand analysis on the RH furnace smelting steel grade information data to obtain RH furnace production smelting demand information data of different steel grades; performing smelting condition design processing on the RH furnace production smelting demand information data of different steel grades to obtain RH furnace steel grade production smelting demand conditions, wherein the RH furnace steel grade production smelting demand conditions include the production of ultra-low carbon steel grades, the production of steel grades with a certain degree of decarburization and impurity removal, the production of steel grades with standard composition performance requirements, and the production of steel grades requiring deep decarburization and true air conditioning composition;

[0022] Step S2: judging and analyzing the steel production and smelting demand conditions of the RH furnace. If the steel production and smelting demand conditions of the RH furnace are to produce ultra-low carbon steel, the steelmaking working mode of the RH furnace is set to the deep decarburization treatment mode, and the circulation and vacuum pump control parameters of the RH furnace are generated based on the historical production experience data of the RH furnace smelting to obtain the circulation system control parameters and vacuum pump system control parameters in the deep decarburization treatment mode;

[0023] Step S3: If the RH furnace steel production smelting requirement is to produce steel with a certain degree of decarburization and impurity removal, the steelmaking working mode of the RH furnace is set to the light processing mode, and the circulation and vacuum pump control parameters of the RH furnace are generated based on the historical production experience data of the RH furnace smelting to obtain the circulation system control parameters and vacuum pump system control parameters in the light processing mode;

[0024] Step S4: if the RH furnace steel grade production smelting requirement condition is to produce steel grades with standard composition performance requirements, the steelmaking working mode of the RH furnace is set to this processing mode, and the circulation and vacuum pump control parameters of the RH furnace are generated based on the historical production experience data of the RH furnace smelting to obtain the circulation system control parameters and vacuum pump system control parameters under this processing mode;

[0025] Step S5: If the RH furnace steel grade production smelting demand condition is to produce steel grades that require deep decarburization and vacuum conditioning composition, the steelmaking working mode of the RH furnace is set to the deep decarburization pump-back processing mode, and the RH furnace is subjected to circulation and vacuum pump control parameter generation processing based on the RH furnace smelting historical production experience data to obtain the circulation system control parameters and vacuum pump system control parameters in the deep decarburization pump-back processing mode;

[0026] Step S6: Summarize the process parameters of the circulation system control parameters and vacuum pump system control parameters in the deep decarburization treatment mode, the circulation system control parameters and vacuum pump system control parameters in the light treatment mode, the circulation system control parameters and vacuum pump system control parameters in the present treatment mode, and the circulation system control parameters and vacuum pump system control parameters in the deep decarburization de-pumping treatment mode to obtain the RH furnace mode steelmaking process parameter table; write the control program according to the RH furnace mode steelmaking process parameter table, and use WINCC to make the HMI control interface to generate the RH furnace steelmaking control interface of different treatment modes to execute the corresponding RH furnace treatment mode steelmaking operation.

[0027] In the embodiment of the present invention, please refer to Figure 1 FIG. 1 is a schematic flow chart of the steps of the novel RH furnace mode steelmaking method of the present invention. In this example, the steps of the novel RH furnace mode steelmaking method include:

[0028] Step S1: obtaining RH furnace smelting steel grade information data and RH furnace smelting historical production experience data, and performing steel grade smelting demand analysis on the RH furnace smelting steel grade information data to obtain RH furnace production smelting demand information data of different steel grades; performing smelting condition design processing on the RH furnace production smelting demand information data of different steel grades to obtain RH furnace steel grade production smelting demand conditions, wherein the RH furnace steel grade production smelting demand conditions include the production of ultra-low carbon steel grades, the production of steel grades with a certain degree of decarburization and impurity removal, the production of steel grades with standard composition performance requirements, and the production of steel grades requiring deep decarburization and true air conditioning composition;

[0029] The embodiment of the present invention obtains steel grade information data from a database or data source related to RH furnace smelting steel grades, including basic information and process parameters of each steel grade, thereby obtaining RH furnace smelting steel grade information data, and then collects historical production experience data of RH furnace smelting, including production experience information of various parameters, process flow, production efficiency, etc. in the production process, thereby obtaining RH furnace smelting historical production experience data. Secondly, the obtained RH furnace smelting steel grade information data is analyzed by using chemical analysis methods (including spectral analysis, chemical determination, etc.) to determine the chemical composition information of each smelting steel grade, including the element composition, content and ratio relationship between the elements of the smelting steel grade, and by using statistical analysis, data visualization and feature extraction methods to analyze, so as to extract key chemical features, including the content of various elements in the steel grade, the type and concentration of impurities, and other chemical parameters related to the properties of the steel grade. At the same time, the extracted chemical feature data is processed by using various feature selection algorithms (such as correlation analysis, variance selection, feature importance evaluation, etc.) to screen out the most representative and predictive features for classification model training from a large amount of chemical feature data. Features, and by using the support vector machine algorithm (SVM) to train the classification model for the selected key feature data, so as to construct a classification model with high accuracy and strong generalization ability, and then, by using the trained classification model for classification processing, the chemical composition information data of different steel grades are effectively classified, so as to obtain their respective RH furnace smelting chemical composition information data, and by analyzing the RH furnace smelting chemical composition information data of different steel grades in combination with the corresponding production needs and technical requirements, the special requirements and needs of each steel grade in the smelting process are analyzed and understood, and the specific needs of each steel grade in the RH furnace smelting process are determined, including the applicable scenarios and performance requirements of different steel grades, so as to obtain the RH furnace production smelting demand information data of different steel grades. Finally, by designing corresponding smelting conditions according to the RH furnace production smelting demand information data of different steel grades, the special requirements of various steel grades can be met, including the production of ultra-low carbon steel grades, steel grades that require a certain degree of decarburization and de-impurity, steel grades that meet specific composition performance requirements, and steel grades that require deep decarburization and true conditioning composition. The smelting conditions are reasonably designed so that they can achieve the expected product quality and performance goals, and finally the RH furnace steel production smelting demand conditions are obtained.

[0030] Step S2: judging and analyzing the steel production and smelting demand conditions of the RH furnace. If the steel production and smelting demand conditions of the RH furnace are to produce ultra-low carbon steel, the steelmaking working mode of the RH furnace is set to the deep decarburization treatment mode, and the circulation and vacuum pump control parameters of the RH furnace are generated based on the historical production experience data of the RH furnace smelting to obtain the circulation system control parameters and vacuum pump system control parameters in the deep decarburization treatment mode;

[0031] The embodiment of the present invention determines what the production and smelting requirements of the RH furnace steel grade are. If it is determined that the production and smelting requirements of the RH furnace steel grade are to produce ultra-low carbon steel grades, the steelmaking working mode of the RH furnace is set to a deep decarburization treatment mode. This treatment mode is suitable for processing ultra-low carbon steel or steel grades requiring extremely high purity, so as to minimize the carbon content in the steel grade and remove corresponding impurities. Secondly, by screening and processing the production experience data of steel types similar to the deep decarburization treatment mode in the historical production experience data of RH furnace smelting, the experience data (including the key control production parameters and experience of the corresponding subsystems (including the circulation system and the vacuum pump system)) that meet the requirements of the deep decarburization treatment mode are screened out from a large amount of historical production experience data, and the circulation flow control parameters of the circulation system of the RH furnace in different time periods (including the main valve opening time period, OB start, OB end and decarburization end time period (based on the addition of aluminum iron greater than 180kg)) and the vacuum pump control parameters of the vacuum pump system in different time periods (3min (synchronized with the first-stage machine time of the RH furnace), 5min and the air pressure limit end time period (less than or equal to 0.8Kpa)) are generated and controlled by using the screened production experience data, so as to comprehensively consider the control requirements and conditions in different time periods, determine the optimal operating parameters of the circulation system and the vacuum pump system in the entire deep decarburization process, and finally obtain the circulation system control parameters and vacuum pump system control parameters under the deep decarburization treatment mode.

[0032] Step S3: If the RH furnace steel production smelting requirement is to produce steel with a certain degree of decarburization and impurity removal, the steelmaking working mode of the RH furnace is set to the light processing mode, and the circulation and vacuum pump control parameters of the RH furnace are generated based on the historical production experience data of the RH furnace smelting to obtain the circulation system control parameters and vacuum pump system control parameters in the light processing mode;

[0033] The embodiment of the present invention determines what the production and smelting requirements of the RH furnace steel grade are. If it is determined that the production and smelting requirements of the RH furnace steel grade are to produce steel grades that are decarburized and impurity-removed to a certain extent, the steelmaking working mode of the RH furnace is set to a light processing mode. This processing mode is suitable for processing steel grades that do not have very strict requirements on carbon content but still require a certain degree of decarburization and impurity removal. Secondly, by screening and processing the production experience data of steel types similar to those in the light processing mode in the historical production experience data of RH furnace smelting, the experience data that meets the requirements of the light processing mode (including the key control production parameters and experience of the corresponding subsystems (including the circulation system and the vacuum pump system)) are screened out from a large amount of historical production experience data, and the circulation flow control parameters of the circulation system of the RH furnace in different time periods (including the time period when the main valve is opened and 4 minutes, etc.) and the vacuum pump control parameters of the vacuum pump system in different time periods (including 3 minutes, 5 minutes, etc.) are generated and controlled by using the screened production experience data to generate control processing to generate the circulation system and vacuum pump system control parameters suitable for different time periods under this mode, and finally obtain the circulation system control parameters and vacuum pump system control parameters under the light processing mode.

[0034] Step S4: if the RH furnace steel grade production smelting requirement condition is to produce steel grades with standard composition performance requirements, the steelmaking working mode of the RH furnace is set to this processing mode, and the circulation and vacuum pump control parameters of the RH furnace are generated based on the historical production experience data of the RH furnace smelting to obtain the circulation system control parameters and vacuum pump system control parameters under this processing mode;

[0035] The embodiment of the present invention determines what the RH furnace steel production and smelting requirements are. If it is determined that the RH furnace steel production and smelting requirements are steel grades with production component performance requirements, the steelmaking working mode of the RH furnace is set to this processing mode, which is suitable for steelmaking processes that require rapid response and realizes production processes with standardized steel performance requirements. Secondly, by screening and processing the production experience data of the steel grades in the RH furnace smelting historical production experience data similar to the present processing mode, the experience data (including the key control production parameters and experience of the corresponding subsystems (including the circulation system and the vacuum pump system)) that meet the requirements of the present processing mode are screened out from a large amount of historical production experience data, and the circulation flow control parameters of the circulation system of the RH furnace in different time periods (including the main valve opening start time period and 2min, etc.) and the vacuum pump control parameters of the vacuum pump system in different time periods (including 1min, 2min, etc.) are generated and controlled by using the screened production experience data to generate the circulation system and vacuum pump system control parameters applicable to different time periods in this mode, and finally obtain the circulation system control parameters and vacuum pump system control parameters under this processing mode.

[0036] Step S5: If the RH furnace steel grade production smelting demand condition is to produce steel grades that require deep decarburization and vacuum conditioning composition, the steelmaking working mode of the RH furnace is set to the deep decarburization pump-back processing mode, and the RH furnace is subjected to circulation and vacuum pump control parameter generation processing based on the RH furnace smelting historical production experience data to obtain the circulation system control parameters and vacuum pump system control parameters in the deep decarburization pump-back processing mode;

[0037] The embodiment of the present invention determines what the production and smelting requirements of the RH furnace steel type are. If it is determined that the production and smelting requirements of the RH furnace steel type are to produce steel types that require deep decarburization and vacuum conditioning, the steelmaking working mode of the RH furnace is set to a deep decarburization pump-back processing mode. This processing mode automatically switches to the pump-back mode after the deep decarburization treatment is completed. The operation of a specific chemical composition can be adjusted by adjusting the circulation flow and the vacuum pump operation, thereby optimizing energy use and reducing energy consumption. Secondly, by screening and processing the production experience data of steel types similar to the deep decarburization and depumping treatment mode in the historical production experience data of RH furnace smelting, the experience data (including the key control production parameters and experience of the corresponding subsystems (including the circulation system and the vacuum pump system)) that meet the requirements of the deep decarburization and depumping treatment mode are screened out from a large amount of historical production experience data, and the circulation flow control parameters of the circulation system of the RH furnace in different time periods (including the main valve opening start time period, OB start, OB end and decarburization end point (based on the addition of aluminum and iron greater than 180kg)) and the vacuum pump control parameters of the vacuum pump system in different time periods (including the main valve opening start time period, 1min (synchronized with the first-stage machine time), 3min, 3.5min and decarburization end point (based on the addition of aluminum and iron greater than 180kg)) are generated and controlled by using the screened production experience data to generate control processing to generate the circulation system and vacuum pump system control parameters suitable for different time periods under this mode, and finally obtain the circulation system control parameters and vacuum pump system control parameters under the deep decarburization and depumping treatment mode.

[0038] Step S6: Summarize the process parameters of the circulation system control parameters and vacuum pump system control parameters in the deep decarburization treatment mode, the circulation system control parameters and vacuum pump system control parameters in the light treatment mode, the circulation system control parameters and vacuum pump system control parameters in the present treatment mode, and the circulation system control parameters and vacuum pump system control parameters in the deep decarburization de-pumping treatment mode to obtain the RH furnace mode steelmaking process parameter table; write the control program according to the RH furnace mode steelmaking process parameter table, and use WINCC to make the HMI control interface to generate the RH furnace steelmaking control interface of different treatment modes to execute the corresponding RH furnace treatment mode steelmaking operation.

[0039] The embodiment of the present invention summarizes the circulation system control parameters and vacuum pump system control parameters in the deep decarburization treatment mode, the circulation system control parameters and vacuum pump system control parameters in the light treatment mode, the circulation system control parameters and vacuum pump system control parameters in the present treatment mode, and the circulation system control parameters and vacuum pump system control parameters in the deep decarburization de-pumping treatment mode, and compiles the steelmaking process parameter table of the RH furnace in different treatment modes according to the summarized control parameters, thereby obtaining the RH furnace mode steelmaking process parameter table (such as Figure 4 As shown). Secondly, the corresponding RH furnace steelmaking control program is written using step7 programming software according to the control parameters of the RH furnace in different processing modes in the RH furnace mode steelmaking process parameter table, and it is ensured that the circulation system and vacuum pump system of the RH furnace can be controlled according to the set process control parameters, so as to automatically control the various production processing modes of the RH furnace, including deep decarburization processing mode, light processing mode, main processing mode and deep decarburization pump back processing mode. Then, the HMI (human-computer interaction) control interface of the RH furnace steelmaking control program with different processing modes is made by using WINCC software, so as to design and layout the control interface according to the RH furnace steelmaking control program and the corresponding control parameters, including operation buttons, parameter input boxes, status displays, etc., so as to generate the corresponding RH furnace steelmaking control interface, and finally generate the RH furnace steelmaking control interface with different processing modes, so that the operator can intuitively monitor and control the various parameters and operations of the RH furnace in different processing modes through the interface, including circulation flow, vacuum pump, etc.

[0040] The present invention firstly acquires RH furnace smelting steel grade information data and historical production experience data, and can establish a comprehensive data foundation for analyzing and optimizing the RH furnace smelting process. These data include different smelting steel grade information required in the RH furnace smelting process and the smelting historical production records of each steel grade, which can help understand the properties, characteristics and performance of different steel grades in the actual production process. By analyzing the steel grade smelting demand of the RH furnace smelting steel grade information data according to the different chemical composition information of the smelting steel grade, the special requirements and needs of each steel grade in the smelting process can be understood. Such an analysis process helps to determine the smelting optimization plan and target of each steel grade, and determine the specific needs of each steel grade in the RH furnace smelting process, which includes the analysis and optimization of the composition control requirements, degassing, impurity removal and other process parameters of different steel grades, thereby providing guidance for the subsequent smelting condition design and processing process of the corresponding smelting steel grade. In addition, by designing and processing the smelting conditions of the RH furnace production and smelting demand information data of different steel grades, the special requirements of various steel grades can be met. These requirements may include the production of ultra-low carbon steel grades, steel grades that require a certain degree of decarburization and impurity removal, steel grades that meet specific component performance requirements, and steel grades that require deep decarburization and vacuum conditioning. Through reasonable design of smelting conditions, the expected product quality and performance goals can be achieved, thereby providing basic data guarantee for the subsequent RH furnace circulation system and vacuum pump system parameter control. At the same time, by judging and analyzing the RH furnace steel grade production and smelting demand conditions, if it is found that ultra-low carbon steel grades need to be produced, the steelmaking working mode of the RH furnace needs to be set to the deep decarburization treatment mode. Such adjustments can ensure that the carbon content of the steel grade meets the requirements and reaches the expected ultra-low carbon content level to meet the requirements of steel performance in specific application fields. Based on the historical production experience data of RH furnace smelting, the circulation system and vacuum pump system of the RH furnace are processed for the circulation and vacuum pump control parameters. Such a processing process can determine the specific control parameters of the circulation system and vacuum pump system in the deep decarburization treatment mode in a certain time period according to the historical experience data, so as to ensure the stable operation of the system, thereby improving the efficiency and accuracy of deep decarburization of steel grades, which is helpful to improve the stability and controllability of the RH furnace production process, and ensure that the quality and performance of steel meet the expected requirements. Secondly, by judging the production and smelting requirements of RH furnace steel grades, if the production and smelting requirements of RH furnace steel grades are to produce steel grades with a certain degree of decarburization and impurity removal, the steelmaking working mode of the RH furnace is set to the light processing mode, which is conducive to the production of steel grades that require a certain degree of decarburization and impurity removal, and can adopt a more relaxed and efficient processing method. Such a setting can ensure that while meeting the product quality requirements, the consumption of energy and resources is minimized and production efficiency is improved.The circulation system and vacuum pump system of the RH furnace are processed by generating circulation and vacuum pump control parameters based on the historical production experience data of the RH furnace smelting. The significance of this step is to generate control parameters corresponding to the circulation system and vacuum pump system in the light processing mode according to the production experience data of the light processing mode, so as to ensure that the circulation system and vacuum pump system can operate stably in the light processing mode to meet the production needs, thereby providing the required vacuum degree and circulation flow. Then, by judging the production and smelting demand conditions of the RH furnace steel grade, if the production and smelting demand conditions of the RH furnace steel grade are for the production of steel grades with standard composition performance requirements, the steelmaking working mode of the RH furnace is set to this processing mode, so that it has a significant effect when producing steel grades with standard composition performance requirements. This processing mode can finely control the process parameters in the furnace according to the composition performance requirements of the product to ensure that the composition of the steel grade meets the standard, thereby improving the product quality and process stability of the corresponding steel grade. And by generating and processing the circulation and vacuum pump control parameters of the circulation system and vacuum pump system of the RH furnace based on the historical production experience data of RH furnace smelting, the purpose of this step is to generate the control parameters corresponding to the circulation system and vacuum pump system in the mode within a certain time period according to the production experience data under this processing mode, so as to ensure that the circulation system and vacuum pump system can operate stably and meet the product composition performance requirements, thereby ensuring the stability and accuracy of the vacuum degree and circulation flow of the RH furnace under this processing mode. Next, by judging the RH furnace steel production and smelting demand conditions, if the RH furnace steel production and smelting demand conditions are to produce steel that requires deep decarburization and vacuum adjustment of composition, the steelmaking working mode of the RH furnace is set to the deep decarburization pump removal processing mode, which has a significant effect on the production of steel that requires deep decarburization and vacuum adjustment of composition. In this processing mode, the RH furnace can more effectively achieve deep decarburization, and at the same time, the composition is accurately adjusted through the vacuum system to meet the specific needs of steel production, thereby improving product quality and process stability. And based on the historical production experience data of RH furnace smelting, the circulation system and vacuum pump system of the RH furnace are processed for circulation and vacuum pump control parameters. The purpose of this step is to generate corresponding control parameters for the circulation system and vacuum pump system in a certain time period according to the production experience data under the deep decarburization and de-pumping treatment mode, so as to ensure that the circulation system and vacuum pump system can operate stably and meet the deep decarburization requirements of the product. This can more accurately meet the requirements of deep decarburization and composition adjustment of steel grades, thereby ensuring the stability and accuracy of the vacuum degree and flow rate of the RH furnace under the deep decarburization and de-pumping treatment mode, and improving production efficiency and product quality.Finally, by integrating the circulation system control parameters and vacuum pump system control parameters under different processing modes, a comprehensive steelmaking process parameter table is obtained. This steelmaking process parameter table contains the key parameters of the RH furnace under different processing modes, such as the circulation flow parameters and vacuum pump parameters that need to be controlled in different time periods. This can provide accurate guidance for the subsequent control program writing and operation, thereby ensuring good control and stability of the RH furnace conditions. In addition, the control program is written and processed using step7 programming software according to the RH furnace mode steelmaking process parameter table. The key to this step is to be able to write steelmaking control programs that can achieve the production needs of steel grades under different processing modes according to the guidance of the process parameter table. These programs can automatically control the various production processing modes of the RH furnace to ensure that the smelting process of steel grades under different processing modes meets the expected requirements. By using WINCC software to produce HMI (human-machine interaction) control interface for RH furnace steelmaking control program of different processing modes, the RH furnace steelmaking control interface of different processing modes is generated. The key of this step is that through the generated human-machine interaction control interface, the operator can intuitively monitor and control the various parameters and operations of the RH furnace in different processing modes, including circulation flow, vacuum pump, etc. Such a control interface can improve the work efficiency and operation accuracy of the operator, ensure the reliability and stability of the conditions in the RH furnace and the smelting process, so as to realize the whole process linkage control of the vacuum pump system and the circulation system in the RH furnace according to the conditions of different steel grades.

[0041] Preferably, step S1 comprises the following steps:

[0042] Step S11: obtaining RH furnace smelting steel grade information data and RH furnace smelting historical production experience data;

[0043] Step S12: performing chemical composition analysis on the RH furnace smelting steel grade information data to obtain the RH furnace smelting steel grade chemical composition information data;

[0044] Step S13: performing chemical characteristic analysis on the chemical composition information data of the RH furnace smelting steel to obtain the chemical characteristic data of the RH furnace smelting steel; performing smelting steel type classification processing on the chemical composition information data of the RH furnace smelting steel based on the chemical characteristic data of the RH furnace smelting steel to obtain the RH furnace smelting chemical composition information data of different steel types;

[0045] Step S14: performing steel grade smelting demand analysis on the RH furnace smelting chemical composition information data of different steel grades to obtain RH furnace production smelting demand information data of different steel grades;

[0046] Step S15: Perform smelting condition design processing on the RH furnace production and smelting demand information data of different steel grades to obtain the RH furnace steel grade production and smelting demand conditions, wherein the RH furnace steel grade production and smelting demand conditions include the production of ultra-low carbon steel grades, the production of steel grades with a certain degree of decarburization and impurity removal, the production of steel grades with standard composition performance requirements, and the production of steel grades that require deep decarburization and true air conditioning composition.

[0047] As an embodiment of the present invention, refer to Figure 2 As shown, Figure 1 Detailed step flow diagram of step S1 in FIG. 1 , in this embodiment, step S1 includes the following steps:

[0048] Step S11: obtaining RH furnace smelting steel grade information data and RH furnace smelting historical production experience data;

[0049] The embodiment of the present invention obtains steel grade information data from a relevant database or data source of RH furnace smelting steel grades, including basic information and process parameters of each steel grade, thereby obtaining RH furnace smelting steel grade information data, and then collects historical production experience data of RH furnace smelting, including production experience information on various parameters, process flow, production efficiency, etc. in the production process, thereby obtaining RH furnace smelting historical production experience data.

[0050] Step S12: performing chemical composition analysis on the RH furnace smelting steel grade information data to obtain the RH furnace smelting steel grade chemical composition information data;

[0051] The embodiment of the present invention uses chemical analysis methods (including spectral analysis, chemical determination, etc.) to analyze the acquired RH furnace smelting steel grade information data to determine the chemical composition information of each smelting steel grade, including the elemental composition, content and ratio relationship between the elements of the smelting steel grade, and finally obtains the RH furnace smelting steel grade chemical composition information data.

[0052] Step S13: performing chemical characteristic analysis on the chemical composition information data of the RH furnace smelting steel to obtain the chemical characteristic data of the RH furnace smelting steel; performing smelting steel type classification processing on the chemical composition information data of the RH furnace smelting steel based on the chemical characteristic data of the RH furnace smelting steel to obtain the RH furnace smelting chemical composition information data of different steel types;

[0053] The embodiment of the present invention analyzes the chemical composition information data of RH furnace smelting steel by using statistical analysis, data visualization and feature extraction methods to extract key chemical features, including the content of various elements in the steel, the type and concentration of impurities, and other chemical parameters related to the properties of the steel, thereby obtaining the chemical feature data of RH furnace smelting steel. Secondly, the chemical feature data of RH furnace smelting steel is processed by using various feature selection algorithms (such as correlation analysis, variance selection, feature importance evaluation, etc.) to screen out the most representative and predictive features for classification model training from a large amount of chemical feature data, and train the classification model for the selected RH furnace steel chemical parameter content feature data by using the support vector machine algorithm (SVM) to construct a classification model with high accuracy and strong generalization ability, and then, the chemical composition information data of RH furnace smelting steel is classified and processed by using the trained classification model to effectively classify the chemical composition information data of different steels, thereby obtaining respective RH furnace smelting chemical composition information data, and finally obtaining RH furnace smelting chemical composition information data of different steels.

[0054] Step S14: performing steel grade smelting demand analysis on the RH furnace smelting chemical composition information data of different steel grades to obtain RH furnace production smelting demand information data of different steel grades;

[0055] The embodiment of the present invention analyzes the RH furnace smelting chemical composition information data of different steel grades in combination with corresponding production needs and technical requirements to analyze and understand the special requirements and demands of each steel grade in the smelting process, and determine the specific requirements of each steel grade in the RH furnace smelting process, including the applicable scenarios and performance requirements of different steel grades, and finally obtains the RH furnace production smelting demand information data of different steel grades.

[0056] Step S15: Perform smelting condition design processing on the RH furnace production and smelting demand information data of different steel grades to obtain the RH furnace steel grade production and smelting demand conditions, wherein the RH furnace steel grade production and smelting demand conditions include the production of ultra-low carbon steel grades, the production of steel grades with a certain degree of decarburization and impurity removal, the production of steel grades with standard composition performance requirements, and the production of steel grades that require deep decarburization and true air conditioning composition.

[0057] The embodiment of the present invention designs corresponding smelting conditions according to the RH furnace production smelting demand information data of different steel grades to meet the special requirements of various steel grades, including the production of ultra-low carbon steel grades, steel grades that require a certain degree of decarburization and impurity removal, steel grades that meet specific component performance requirements, and steel grades that require deep decarburization and true air conditioning components, and reasonably designs the smelting conditions so that it can achieve the expected product quality and performance goals, and finally obtains the RH furnace steel production smelting demand conditions.

[0058] The present invention firstly obtains RH furnace smelting steel grade information data and historical production experience data, and can establish a comprehensive data foundation for analyzing and optimizing the RH furnace smelting process. These data include different smelting steel grade information required in the RH furnace smelting process and the smelting historical production records of each steel grade, which can help understand the properties, characteristics and performance of different steel grades in the actual production process. Secondly, by analyzing the chemical composition of the steel grade information data of the RH furnace smelting steel grade, the detailed chemical composition information of different smelting steel grades of the RH furnace can be obtained. Such an analysis process helps to understand the element composition, content and ratio relationship between the elements of the smelting steel grade, and provides basic data for the subsequent smelting process. Then, by performing chemical feature analysis on the chemical composition information data of the RH furnace smelting steel grade, the chemical characteristics between different steel grades can be identified. Such analysis can reveal the differences and similarities between steel grades and provide a basis for steel grade classification. At the same time, by combining the chemical feature data of the RH furnace smelting steel grade chemical composition information data, the RH furnace smelting steel grade chemical composition information data is subjected to smelting steel grade classification processing, so that the corresponding chemical composition data are classified according to different smelting steel grades for subsequent analysis and processing. Next, by analyzing the steel smelting demand of the RH furnace smelting chemical composition information data of different steel grades, the special requirements and needs of each steel grade in the smelting process can be understood. Such an analysis process helps to determine the smelting optimization plan and goals of each steel grade, and determine the specific needs of each steel grade in the RH furnace smelting process, which includes the analysis and optimization of the composition control requirements, degassing, impurity removal and other process parameters of different steel grades, so as to provide guidance for the subsequent smelting condition design and processing process of the corresponding smelting steel grades. Finally, by designing the smelting condition design of the RH furnace production smelting demand information data of different steel grades, the special requirements of various steel grades can be met. These requirements may include the production of ultra-low carbon steel grades, steel grades that require a certain degree of decarburization and impurity removal, steel grades that meet specific composition performance requirements, and steel grades that require deep decarburization and vacuum conditioning composition. By reasonably designing the smelting conditions, the expected product quality and performance goals can be achieved, thereby providing basic data guarantee for the subsequent RH furnace circulation system and vacuum pump system parameter control.

[0059] Preferably, step S13 comprises the following steps:

[0060] Step S131: performing chemical characteristic analysis on the chemical composition information data of the steel grade smelted by the RH furnace to obtain the chemical characteristic data of the steel grade smelted by the RH furnace;

[0061] Step S132: performing feature selection processing on the chemical feature data of the steel grade smelted in the RH furnace to obtain the chemical parameter content feature data of the steel grade smelted in the RH furnace;

[0062] Step S133: using a support vector machine algorithm to perform classification model training on the chemical parameter content characteristic data of the RH furnace steel grade to obtain a chemical composition classification model of the RH furnace steel grade;

[0063] Step S134: using the RH furnace steel chemical composition classification model to classify the RH furnace smelting steel chemical composition information data to obtain RH furnace smelting chemical composition information data of different steel grades.

[0064] As an embodiment of the present invention, refer to Figure 3 As shown, Figure 2 FIG. 1 is a schematic diagram of a detailed step flow chart of step S13 in FIG. 1 . In this embodiment, step S13 includes the following steps:

[0065] Step S131: performing chemical characteristic analysis on the chemical composition information data of the steel grade smelted by the RH furnace to obtain the chemical characteristic data of the steel grade smelted by the RH furnace;

[0066] The embodiment of the present invention analyzes the chemical composition information data of RH furnace smelted steel by using statistical analysis, data visualization and feature extraction methods to extract key chemical characteristics, including the content of various elements in the steel, the type and concentration of impurities, and other chemical parameters related to the properties of the steel, and finally obtains the chemical characteristic data of RH furnace smelted steel.

[0067] Step S132: performing feature selection processing on the chemical feature data of the steel grade smelted in the RH furnace to obtain the chemical parameter content feature data of the steel grade smelted in the RH furnace;

[0068] The embodiment of the present invention processes the chemical characteristic data of RH furnace smelting steel grades by using various feature selection algorithms (such as correlation analysis, variance selection, feature importance evaluation, etc.) to screen out the most representative and predictive features for classification model training from a large amount of chemical characteristic data, and finally obtain the chemical parameter content characteristic data of RH furnace steel grades.

[0069] Step S133: using a support vector machine algorithm to perform classification model training on the chemical parameter content characteristic data of the RH furnace steel grade to obtain a chemical composition classification model of the RH furnace steel grade;

[0070] The embodiment of the present invention uses a support vector machine algorithm (SVM) to train a classification model for the selected RH furnace steel grade chemical parameter content characteristic data, including data set division, parameter tuning, cross-validation and other steps, to construct a classification model with high accuracy and strong generalization ability, and finally obtain a RH furnace steel grade chemical composition classification model.

[0071] Step S134: using the RH furnace steel chemical composition classification model to classify the RH furnace smelting steel chemical composition information data to obtain RH furnace smelting chemical composition information data of different steel grades.

[0072] The embodiment of the present invention classifies and processes the chemical composition information data of RH furnace smelting steel grades by using a trained RH furnace steel grade chemical composition classification model, so as to effectively classify the chemical composition information data of different steel grades, thereby obtaining respective RH furnace smelting chemical composition information data, and finally obtaining the RH furnace smelting chemical composition information data of different steel grades.

[0073] The present invention firstly performs chemical feature analysis on the chemical composition information data of RH furnace smelting steel to extract key chemical features, which may include the content of various elements in the steel, the type and concentration of impurities, and other chemical parameters related to the properties of the steel. Through chemical feature analysis, the differences between different steels can be better understood, and basic data can be provided for subsequent classification model training. Secondly, feature selection is performed on the chemical feature data of RH furnace smelting steel. The feature selection process is to screen out the most representative and predictive features for classification model training from a large number of features to improve the effect and generalization ability of the model. Through this step, the feature data dimension and redundancy can be reduced, thereby improving the training efficiency and prediction accuracy of the classification model. Then, the classification model is trained on the chemical parameter content feature data of RH furnace steel after feature selection by using a support vector machine (SVM) algorithm. The support vector machine is a powerful machine learning algorithm that can effectively process high-dimensional data and has good classification performance. Through the training of the chemical composition data of RH furnace steel, a classification model with high accuracy and strong generalization ability can be constructed for subsequent steel classification processing. Finally, by using the trained RH furnace steel grade chemical composition classification model to classify the RH furnace smelting steel grade chemical composition information data, the chemical composition information data of different steel grades can be effectively classified to obtain their respective RH furnace smelting chemical composition information data. Such a classification processing process helps to better understand and analyze the characteristics and requirements of different steel grades, and provide an important basis for the design and optimization of process control parameters in the smelting production process of different steel grades.

[0074] Preferably, step S2 comprises the following steps:

[0075] Step S21: judging and analyzing the steel production and smelting requirements of the RH furnace, if the steel production and smelting requirements of the RH furnace are to produce ultra-low carbon steel, setting the steelmaking working mode of the RH furnace to a deep decarburization treatment mode;

[0076] The embodiment of the present invention determines what the production and smelting requirements of the RH furnace steel grade are. If it is determined that the production and smelting requirements of the RH furnace steel grade are to produce ultra-low carbon steel grades, the steelmaking working mode of the RH furnace is set to a deep decarburization treatment mode. This treatment mode is suitable for processing ultra-low carbon steel or steel grades requiring extremely high purity, so as to minimize the carbon content in the steel grade and remove corresponding impurities.

[0077] Step S22: performing deep decarburization treatment experience screening processing on the historical production experience data of RH furnace smelting to obtain the RH furnace smelting production experience data under the deep decarburization treatment mode;

[0078] The embodiment of the present invention screens and processes the production experience data of steel types similar to those under the deep decarburization treatment mode in the historical production experience data of RH furnace smelting, so as to screen out the experience data that meets the requirements of the deep decarburization treatment mode from a large amount of historical production experience data (including the key control production parameters and experience of the corresponding subsystems (including the circulation system and the vacuum pump system)), and finally obtains the RH furnace smelting production experience data under the deep decarburization treatment mode.

[0079] Step S23: Based on the RH furnace smelting production experience data in the deep decarburization treatment mode, the circulation system and the vacuum pump system of the RH furnace are processed for production control experience summary, so as to obtain the production control experience data of the RH furnace circulation system and the production control experience data of the RH furnace vacuum pump system in the deep decarburization treatment mode;

[0080] The embodiment of the present invention summarizes the production control experience of the circulation system and the vacuum pump system of the RH furnace based on the RH furnace smelting production experience data under the deep decarburization treatment mode, so as to integrate the production experience data of controlling the circulation system and the vacuum pump system under the deep decarburization treatment mode, and finally obtains the production control experience data of the circulation system of the RH furnace and the production control experience data of the vacuum pump system of the RH furnace under the deep decarburization treatment mode.

[0081] Step S24: performing circulation control parameter generation processing on the circulation system of the RH furnace based on the production control experience data of the circulation system of the RH furnace in the deep decarburization treatment mode, so as to obtain the circulation system control parameters in the deep decarburization treatment mode;

[0082] The embodiment of the present invention determines the setting requirements of the circulation flow control parameters of the circulation system of the RH furnace in the main valve opening time period, OB start, OB end and decarburization end time period (based on the addition of aluminum iron greater than 180kg) in combination with the production control experience data of the RH furnace circulation system in the deep decarburization treatment mode, and sets the parameters according to the corresponding setting requirements to ensure that the originally set RH furnace circulation system control parameters can meet the production requirements, and can comprehensively consider the control requirements and conditions in different time periods, determine the optimal operating parameters of the circulation system in the entire deep decarburization treatment process, and finally obtain the circulation system control parameters in the deep decarburization treatment mode.

[0083] Step S25: Based on the production control experience data of the vacuum pump system of the RH furnace in the deep decarburization treatment mode, the vacuum pump control parameter generation process is performed on the vacuum pump system of the RH furnace to obtain the vacuum pump system control parameters in the deep decarburization treatment mode.

[0084] The embodiment of the present invention determines the setting requirements of the vacuum pump control parameters of the circulation system of the RH furnace at 3 minutes (synchronized with the time of the first-level machine of the RH furnace), 5 minutes and the air pressure limit end time period (less than or equal to 0.8Kpa) by combining the production control experience data of the RH furnace circulation system under the deep decarburization treatment mode, and sets the parameters according to the corresponding setting requirements to comprehensively consider the control requirements and conditions in different time periods, determine the optimal operating parameters of the vacuum pump system in the entire deep decarburization treatment process, and finally obtain the vacuum pump system control parameters under the deep decarburization treatment mode.

[0085] The present invention firstly judges and analyzes the RH furnace steel production and smelting demand conditions. If it is found that ultra-low carbon steel needs to be produced, the steelmaking working mode of the RH furnace needs to be set to a deep decarburization treatment mode. Such adjustment can ensure that the carbon content of the steel meets the requirements and reaches the expected ultra-low carbon content level to meet the requirements of the steel performance in a specific application field. Secondly, by performing deep decarburization treatment experience screening on the historical production experience data of the RH furnace smelting, the relevant production experience data under the deep decarburization treatment mode can be extracted. These data include operating parameters, production conditions, and quality conditions of steel during the deep decarburization treatment process, thereby providing a reference for subsequent production control and optimization. Then, based on the RH furnace smelting production experience data under the deep decarburization treatment mode, the circulation system and vacuum pump system of the RH furnace are subjected to production control experience summary processing. Such a processing process can summarize the production control experience data of the circulation system and vacuum pump system under the deep decarburization treatment mode, including information on operating parameters, system operation conditions, and production effects, thereby providing a basis for the control parameter generation process of the subsequent corresponding production process. Next, by generating and processing the circulation control parameters of the circulation system of the RH furnace based on the production control experience data of the circulation system of the RH furnace in the deep decarburization treatment mode, such a processing process can determine what the specific control parameters of the circulation system in the deep decarburization treatment mode are in a certain time period according to the historical experience data, so as to ensure the stable operation of the system, thereby improving the efficiency and accuracy of deep decarburization of steel grades. Finally, by generating and processing the vacuum pump control parameters of the vacuum pump system of the RH furnace based on the production control experience data of the vacuum pump system of the RH furnace in the deep decarburization treatment mode, similarly, such a processing process can determine what the specific control parameters of the vacuum pump system in the deep decarburization treatment mode are in a certain time period according to the historical experience data, so as to ensure the stable operation of the system, thereby improving the maintenance and control accuracy of the vacuum degree. By determining the control parameters of the circulation system and the vacuum pump system in the deep decarburization treatment mode according to the historical production experience data, the production efficiency and product quality of the corresponding steel grades can be improved, thereby helping to improve the stability and controllability of the RH furnace production process and ensure that the quality and performance of the steel meet the expected requirements.

[0086] Preferably, step S24 includes the following steps:

[0087] Step S241: performing a circulation flow control parameter setting process on the circulation system of the RH furnace in the main valve opening time period based on the production control experience data of the circulation system of the RH furnace in the deep decarburization treatment mode, and obtaining the initial setting control parameters of the circulation flow of the RH furnace in the deep decarburization treatment mode;

[0088] The embodiment of the present invention determines the setting requirements of the circulation flow control parameters of the circulation system of the RH furnace in the main valve opening time period by combining the production control experience data of the RH furnace circulation system in the deep decarburization treatment mode, and sets the parameters according to the corresponding setting requirements to ensure that the originally set RH furnace circulation system control parameters can meet the production requirements, and finally obtain the initial setting control parameters of the RH furnace circulation flow in the deep decarburization treatment mode.

[0089] Step S242: Based on the production control experience data of the RH furnace circulation system in the deep decarburization treatment mode, the initial control parameters of the circulation flow of the RH furnace in the deep decarburization treatment mode are adjusted in real time according to the change of the circulation system time period, so as to obtain the real-time adjustment control parameters of the circulation flow of the RH furnace in the deep decarburization treatment mode;

[0090] The embodiment of the present invention combines the production control experience data of the RH furnace circulation system in the deep decarburization treatment mode to adjust the initial control parameters of the RH furnace circulation flow in the deep decarburization treatment mode in real time according to the real-time production conditions and time changes of the circulation system, so as to ensure the operation stability and smelting efficiency of the circulation system in different production time stages (including OB start, OB end, etc.), and finally obtain the real-time adjustment control parameters of the RH furnace circulation flow in the deep decarburization treatment mode.

[0091] Step S243: performing a judgment and analysis on the end point of the decarburization time period of the circulation system of the RH furnace to obtain the end point of the decarburization time period of the circulation system of the RH furnace in the deep decarburization treatment mode;

[0092] The embodiment of the present invention adds more than 180kg of aluminum iron into the circulating system of the RH furnace as a judgment basis to judge and analyze the end point of the decarburization time period under this mode, so as to accurately judge the end time of decarburization of the circulating system according to the corresponding production demand and decarburization effect, and finally obtain the end point of the decarburization time period of the circulating system of the RH furnace under the deep decarburization treatment mode.

[0093] Step S244: automatically controlling the circulation flow control parameters of the circulation system at the end of the decarburization time period of the RH furnace circulation system based on the production control experience data of the RH furnace circulation system in the deep decarburization treatment mode, and obtaining the circulation flow control parameters of the RH furnace decarburization end point in the deep decarburization treatment mode;

[0094] The embodiment of the present invention automatically generates the circulation flow control parameters at the end of the decarburization time period of the RH furnace circulation system in combination with the production control experience data of the RH furnace circulation system in the deep decarburization treatment mode, so as to ensure that the circulation flow control parameters of the RH furnace in the deep decarburization treatment mode meet the production requirements and realize automatic adjustment, and finally obtain the circulation flow control parameters of the RH furnace decarburization end point in the deep decarburization treatment mode.

[0095] Step S245: Combine the initial setting control parameters of the RH furnace circulation flow in the deep decarburization treatment mode, the real-time adjustment control parameters of the RH furnace circulation flow and the RH furnace decarburization endpoint circulation flow control parameters to obtain the circulation system control parameters in the deep decarburization treatment mode.

[0096] The embodiment of the present invention combines and reorganizes the initial control parameters of the RH furnace circulation flow in the deep decarburization treatment mode, the real-time adjustment control parameters of the RH furnace circulation flow, and the RH furnace decarburization terminal circulation flow control parameters, so as to comprehensively consider the control requirements and conditions in different time periods, determine the optimal operating parameters of the circulation system in the entire deep decarburization treatment process, and finally obtain the circulation system control parameters in the deep decarburization treatment mode.

[0097] The present invention firstly performs the circulation flow control parameter setting process of the circulation system of the RH furnace in the main valve opening time period based on the production control experience data of the RH furnace circulation system in the deep decarburization treatment mode, so as to ensure the accuracy and effectiveness of the initial control parameters of the circulation flow of the RH furnace in the deep decarburization treatment mode. Such a processing process can reasonably set the initial circulation flow control parameters according to the corresponding historical experience data, for the environmental conditions and operation requirements in the specific main valve opening time period, so as to ensure the stability and optimization effect of the circulation flow in the production process. Secondly, by adjusting the initial control parameters of the circulation flow in real time according to the changes in the circulation system time period based on the production control experience data of the RH furnace circulation system in the deep decarburization treatment mode, more accurate real-time adjustment control parameters of the circulation flow can be obtained. By adjusting the control parameters in real time, it is possible to respond to environmental changes and production demand changes in a timely manner, keep the circulation flow within a suitable range, and ensure the deep decarburization effect and quality stability of the molten steel. Then, by analyzing the end point of the decarburization time period of the circulation system of the RH furnace, the end point of the decarburization time period of the circulation system of the RH furnace can be determined in the deep decarburization treatment mode. Such analysis can accurately determine the end time of the decarburization of the circulation system according to production requirements and decarburization effects, thereby providing time basis and operation guidance for subsequent production control. Next, by automatically controlling the circulation flow control parameters at the end point of the decarburization time period of the circulation system according to the production control experience data of the circulation system of the RH furnace in the deep decarburization treatment mode, it can be ensured that the circulation flow of the circulation system at the end of the decarburization stage can meet the production needs and ensure the quality and stability of the molten steel. Finally, by merging the initial control parameters of the circulation flow of the RH furnace in the deep decarburization treatment mode, the real-time adjustment control parameters of the circulation flow of the RH furnace, and the circulation flow control parameters of the RH furnace decarburization end point, such a combined process can comprehensively consider the control parameters of different stages to ensure the stability and efficiency of the circulation system in the entire deep decarburization treatment process. In summary, according to historical experience data, it can be determined what the specific control parameters of the circulation system in the deep decarburization treatment mode are in which time period to ensure the stable operation of the system, thereby improving the efficiency and accuracy of deep decarburization of steel grades.

[0098] Preferably, step S25 comprises the following steps:

[0099] Step S251: performing time period synchronization processing on the vacuum pump system of the RH furnace to obtain a primary machine synchronization time period of the vacuum pump;

[0100] The embodiment of the present invention synchronizes the start control time of the RH furnace vacuum pump system to ensure that the production control time of the vacuum pump system and the first-level machine of the RH furnace operate in a coordinated manner within a synchronized time period to avoid conflicts and instability, and ultimately obtain a synchronized time period for the first-level machine of the vacuum pump.

[0101] Step S252: performing vacuum pump control parameter setting processing on the vacuum pump system of the RH furnace at the vacuum pump primary machine synchronization time period based on the production control experience data of the RH furnace vacuum pump system in the deep decarburization treatment mode, and obtaining the initial setting control parameters of the RH furnace vacuum pump in the deep decarburization treatment mode;

[0102] The embodiment of the present invention determines the production control parameter setting requirements of the RH furnace vacuum pump system in the vacuum pump primary machine synchronization time period by combining the production control experience data of the RH furnace vacuum pump system in the deep decarburization treatment mode, and sets the parameters according to the requirements to ensure that the originally set RH furnace vacuum pump system control parameters can meet the production requirements, and finally obtain the initial control parameters of the RH furnace vacuum pump in the deep decarburization treatment mode.

[0103] Step S253: Based on the production control experience data of the RH furnace vacuum pump system in the deep decarburization treatment mode, the initial control parameters of the RH furnace vacuum pump in the deep decarburization treatment mode are adjusted in real time according to the change of the vacuum pump system time period, so as to obtain the real-time adjustment control parameters of the RH furnace vacuum pump in the deep decarburization treatment mode;

[0104] The embodiment of the present invention combines the production control experience data of the RH furnace vacuum pump system in the deep decarburization treatment mode to adjust the initial control parameters of the RH furnace vacuum pump in the deep decarburization treatment mode in real time according to the real-time production conditions and time changes of the vacuum pump system, so as to ensure the stable operation and smelting efficiency of the vacuum pump system in different production time stages, and finally obtain the real-time adjustment control parameters of the RH furnace vacuum pump in the deep decarburization treatment mode.

[0105] Step S254: performing vacuum pressure time period limitation processing on the vacuum pump system of the RH furnace to obtain the vacuum pump pressure limitation time period of the RH furnace;

[0106] The embodiment of the present invention analyzes the air pressure requirements and restriction conditions of the vacuum pump system at the smelting endpoint time period under the deep decarburization treatment mode, and sets it as the endpoint time period to ensure that the vacuum pump system operates within a specified air pressure range (less than or equal to 0.8Kpa) during the specific endpoint period, and finally obtains the RH furnace vacuum pump air pressure restriction time period.

[0107] Step S255: automatically controlling the vacuum pump control parameters of the vacuum pump system at the RH furnace vacuum pump pressure limiting time period based on the production control experience data of the RH furnace vacuum pump system in the deep decarburization treatment mode, and obtaining the RH furnace pressure limiting vacuum pump control parameters in the deep decarburization treatment mode;

[0108] The embodiment of the present invention automatically generates vacuum pump control parameters at the RH furnace vacuum pump pressure limiting time period by combining the production control experience data of the RH furnace vacuum pump system in the deep decarburization treatment mode, so as to ensure that the RH furnace vacuum pump control parameters in the deep decarburization treatment mode meet the air pressure requirements and achieve automatic adjustment, and finally obtain the RH furnace air pressure limiting vacuum pump control parameters in the deep decarburization treatment mode.

[0109] Step S256: Combine the initial control parameters of the RH furnace vacuum pump in the deep decarburization treatment mode, the real-time adjustment control parameters of the RH furnace vacuum pump, and the RH furnace pressure limiting vacuum pump control parameters to obtain the vacuum pump system control parameters in the deep decarburization treatment mode.

[0110] The embodiment of the present invention combines and reorganizes the initial control parameters of the RH furnace vacuum pump in the deep decarburization treatment mode, the real-time adjustment control parameters of the RH furnace vacuum pump, and the RH furnace gas pressure limiting vacuum pump control parameters, so as to comprehensively consider the control requirements and conditions in different time periods, determine the optimal operating parameters of the vacuum pump system in the entire deep decarburization treatment process, and finally obtain the vacuum pump system control parameters in the deep decarburization treatment mode.

[0111] The present invention first synchronizes the time periods of the vacuum pump system of the RH furnace, which means that in the deep decarburization treatment mode, the synchronization time period of the vacuum pump primary machine can be established, and this measure helps to achieve the coordinated operation of the vacuum pump system. By establishing the synchronization time period, the operating sequence of different vacuum pump primary machines can be effectively managed to avoid energy waste or reduced production efficiency due to asynchronous operation, thereby improving the overall efficiency and stability of the RH furnace vacuum system. At the same time, based on the production control experience data of the RH furnace vacuum pump system in the deep decarburization treatment mode, the vacuum pump system is subjected to control parameter setting processing within the synchronization time period of the vacuum pump primary machine to determine the initial control parameters of the RH furnace vacuum pump in the deep decarburization treatment mode. The purpose of this step is to accurately set the control parameters of the vacuum pump according to the production experience data and actual needs, and ensure that when the deep decarburization treatment starts, the vacuum pump system can operate as expected and provide the required vacuum degree and flow. Secondly, by adjusting the initial control parameters of the vacuum pump in real time according to the production control experience data of the RH furnace vacuum pump system under the deep decarburization treatment mode, the importance of this step is to adjust the control parameters of the vacuum pump system in time according to the real-time production conditions and environmental changes to keep the system running in the best state and ensure the stability and efficiency of the deep decarburization process of the RH furnace. Then, by limiting the vacuum pressure period of the vacuum pump system of the RH furnace, the air pressure limit time period of the vacuum pump of the RH furnace can be determined. The purpose of this step is to set the air pressure requirements that the vacuum pump system needs to reach within a specific terminal time period according to the actual situation and production needs to ensure the safety and stability of the RH furnace operation. Next, based on the production control experience data of the RH furnace vacuum pump system under the deep decarburization treatment mode, the control parameters of the vacuum pump system are automatically controlled within the vacuum pump air pressure limit time period. The role of this step is to automatically adjust the operating parameters of the vacuum pump system within the time period of the limited air pressure range to ensure that the vacuum pump system reaches the required air pressure requirements within the limited time period, thereby ensuring the stability and safety of the RH furnace operation. Finally, by merging the initial control parameters, real-time adjustment control parameters and pressure-limited vacuum pump control parameters of the RH furnace vacuum pump in the deep decarburization treatment mode, the purpose of this step is to comprehensively consider the control requirements and conditions in different time periods, and determine the optimal operating parameters of the vacuum pump system in the entire deep decarburization process to improve the stability and production efficiency of the vacuum pump system. In this way, based on historical experience data, it is possible to determine what specific control parameters are suitable for the vacuum pump system in the deep decarburization treatment mode in which time period to ensure stable operation of the system, thereby improving the maintenance of vacuum and control accuracy.

[0112] Preferably, step S3 comprises the following steps:

[0113] Step S31: if the RH furnace steel production smelting requirement is to produce steel with a certain degree of decarburization and impurity removal, the steelmaking working mode of the RH furnace is set to a light processing mode;

[0114] The embodiment of the present invention determines what the production and smelting requirements of the RH furnace steel grade are. If it is determined that the production and smelting requirements of the RH furnace steel grade are to produce steel grades that are decarburized and impurity-removed to a certain extent, the steelmaking working mode of the RH furnace is set to a light processing mode. This processing mode is suitable for processing steel grades that do not have very strict requirements on carbon content but still require a certain degree of decarburization and impurity removal.

[0115] Step S32: performing light treatment experience screening processing on the historical production experience data of RH furnace smelting to obtain the production experience data of RH furnace smelting in the light treatment mode;

[0116] The embodiment of the present invention screens and processes the production experience data of steel types similar to those under the light processing mode in the historical production experience data of RH furnace smelting, so as to screen out the experience data that meets the requirements of the light processing mode (including the key control production parameters and experience of the corresponding subsystems (including the circulation system and the vacuum pump system)) from a large amount of historical production experience data, and finally obtains the RH furnace smelting production experience data under the light processing mode.

[0117] Step S33: Based on the RH furnace smelting production experience data in the light processing mode, the circulation system and the vacuum pump system of the RH furnace are processed by summarizing the production control experience, and the production control experience data of the RH furnace circulation system and the production control experience data of the RH furnace vacuum pump system in the light processing mode are obtained;

[0118] The embodiment of the present invention summarizes the production control experience of the circulation system and the vacuum pump system of the RH furnace based on the RH furnace smelting production experience data under the light processing mode, so as to integrate the production experience data of controlling the circulation system and the vacuum pump system under the light processing mode, and finally obtains the production control experience data of the circulation system of the RH furnace and the production control experience data of the vacuum pump system of the RH furnace under the light processing mode.

[0119] Step S34: performing circulation control parameter generation processing on the circulation system of the RH furnace based on the production control experience data of the circulation system of the RH furnace in the light processing mode, so as to obtain the circulation system control parameters in the light processing mode;

[0120] The embodiment of the present invention generates and controls the circulation flow control parameters of the circulation system of the RH furnace in different time periods in combination with the production control experience data of the circulation system of the RH furnace in the light processing mode, so as to generate the circulation system control parameters suitable for different time periods in this mode (including the time period when the main valve is opened and 4 minutes, etc.), and finally obtain the circulation system control parameters in the light processing mode.

[0121] Step S35: performing vacuum pump control parameter generation processing on the vacuum pump system of the RH furnace based on the production control experience data of the vacuum pump system of the RH furnace in the light processing mode to obtain the vacuum pump system control parameters in the light processing mode.

[0122] The embodiment of the present invention generates and controls the vacuum pump control parameters of the vacuum pump system of the RH furnace in different time periods in combination with the production control experience data of the vacuum pump system of the RH furnace in the light processing mode, so as to generate vacuum pump system control parameters suitable for different time periods (including 3min, 5min and other time periods) under this mode, and finally obtain the vacuum pump system control parameters in the light processing mode.

[0123] The present invention first determines the RH furnace steel production and smelting demand conditions. If the RH furnace steel production and smelting demand conditions are to produce steel with a certain degree of decarburization and impurity removal, the steelmaking working mode of the RH furnace is set to the light processing mode, which is conducive to the production of steel that requires a certain degree of decarburization and impurity removal. A more relaxed and efficient processing method can be adopted. Such a setting can ensure that while meeting the product quality requirements, the consumption of energy and resources is reduced as much as possible, and production efficiency is improved. Secondly, the light processing experience screening process is performed on the historical production experience data of the RH furnace smelting. The purpose of this step is to screen out the experience data related to the light processing mode from a large amount of historical production experience data, thereby providing a basis and basis for the subsequent production control experience summary process. Then, based on the RH furnace smelting production experience data in the light processing mode, the circulation system and vacuum pump system of the RH furnace are processed for production control experience summary. The significance of this step is to integrate the production experience data of the circulation system and vacuum pump system in the light processing mode, so as to better understand and control the operating characteristics and requirements of the circulation system and vacuum pump system in this mode, thereby providing a basis for the subsequent control parameter generation process. Next, based on the production control experience data of the RH furnace circulation system in the light processing mode, the circulation control parameters of the circulation system of the RH furnace are generated. Through this step, the circulation system control parameters suitable for this mode can be generated according to the production experience data in the light processing mode to ensure that the circulation system can operate stably in the light processing mode and meet the production needs. Finally, based on the production control experience data of the RH furnace vacuum pump system in the light processing mode, the vacuum pump control parameters of the RH furnace are generated. The purpose of this step is to generate the vacuum pump system control parameters suitable for this mode in a certain time period according to the production experience data of the vacuum pump system in the light processing mode to ensure that the vacuum pump system can operate effectively in the light processing mode, thereby providing the required vacuum degree and circulation flow rate.

[0124] Preferably, step S4 comprises the following steps:

[0125] Step S41: if the steel grade production smelting requirement condition of the RH furnace is to produce steel grades with standard composition and performance requirements, the steelmaking working mode of the RH furnace is set to this processing mode;

[0126] The embodiment of the present invention determines what the production and smelting requirements of the RH furnace steel grade are. If it is determined that the production and smelting requirements of the RH furnace steel grade are steel grades with standard production component performance requirements, the steelmaking working mode of the RH furnace is set to this processing mode. This processing mode is suitable for steelmaking processes that require rapid response and realizes production processes that standardize steel performance requirements.

[0127] Step S42: Performing this processing experience screening process on the historical production experience data of RH furnace smelting to obtain the production experience data of RH furnace smelting under this processing mode;

[0128] The embodiment of the present invention screens and processes the production experience data of steel types similar to the present processing mode in the historical production experience data of RH furnace smelting, so as to screen out the experience data that meets the requirements of the present processing mode (including the key control production parameters and experience of the corresponding subsystems (including the circulation system and the vacuum pump system)) from a large amount of historical production experience data, and finally obtains the RH furnace smelting production experience data under the present processing mode.

[0129] Step S43: Based on the RH furnace smelting production experience data in this processing mode, the circulation system and the vacuum pump system of the RH furnace are processed for production control experience summary, so as to obtain the production control experience data of the RH furnace circulation system and the production control experience data of the RH furnace vacuum pump system in this processing mode;

[0130] The embodiment of the present invention summarizes the production control experience of the circulation system and the vacuum pump system of the RH furnace based on the RH furnace smelting production experience data under the present processing mode, so as to integrate the production experience data of controlling the circulation system and the vacuum pump system under the present processing mode, and finally obtains the production control experience data of the circulation system of the RH furnace and the production control experience data of the vacuum pump system of the RH furnace under the present processing mode.

[0131] Step S44: performing circulation control parameter generation processing on the circulation system of the RH furnace based on the production control experience data of the circulation system of the RH furnace in this processing mode, so as to obtain the circulation system control parameters in this processing mode;

[0132] The embodiment of the present invention generates control processing on the circulation flow control parameters of the circulation system of the RH furnace in different time periods by combining the production control experience data of the RH furnace circulation system in this processing mode, so as to generate circulation system control parameters suitable for different time periods in this mode (including the start time period of opening the main valve and 2 minutes, etc.), and finally obtain the circulation system control parameters in this processing mode.

[0133] Step S45: performing vacuum pump control parameter generation processing on the vacuum pump system of the RH furnace based on the production control experience data of the vacuum pump system of the RH furnace in this processing mode to obtain the vacuum pump system control parameters in this processing mode.

[0134] The embodiment of the present invention generates and controls the vacuum pump control parameters of the RH furnace's vacuum pump system in different time periods in combination with the production control experience data of the RH furnace vacuum pump system in this processing mode, so as to generate vacuum pump system control parameters suitable for different time periods (including 1min, 2min, etc.) under this mode, and finally obtains the vacuum pump system control parameters in this processing mode.

[0135] The present invention first determines the RH furnace steel production and smelting demand conditions. If the RH furnace steel production and smelting demand conditions are steel grades with standard component performance requirements, the steelmaking working mode of the RH furnace is set to this processing mode, so that it has a significant effect when producing steel grades with standard component performance requirements. This processing mode can finely control the process parameters in the furnace according to the component performance requirements of the product to ensure that the composition of the steel grade meets the standard, thereby improving the product quality and process stability of the corresponding steel grade. Secondly, by performing this processing experience screening on the historical production experience data of the RH furnace smelting, the importance of this step is to screen out the experience data that meets the requirements of this processing mode from a large amount of historical production experience data, thereby providing an accurate data basis for the subsequent production control experience summary processing. Then, based on the RH furnace smelting production experience data under this processing mode, the circulation system and vacuum pump system of the RH furnace are processed for production control experience summary. In this way, by integrating the production experience data under this processing mode, the operating characteristics of the circulation system and vacuum pump system can be better understood and controlled, thereby providing an effective basis for the subsequent control parameter generation processing. Next, based on the production control experience data of the RH furnace circulation system under this processing mode, the circulation control parameters of the circulation system of the RH furnace are generated. The purpose of this step is to generate the circulation system control parameters suitable for this mode based on the production experience data of this processing mode, so as to ensure that the circulation system can operate stably and meet the product composition performance requirements. Finally, based on the production control experience data of the RH furnace vacuum pump system under this processing mode, the vacuum pump control parameters of the RH furnace are generated, so that under this processing mode, the vacuum pump control parameters generated according to the production experience data can more accurately meet the steel grade composition performance requirements, thereby ensuring the stability and accuracy of the vacuum degree and circulation flow of the RH furnace under this processing mode.

[0136] Preferably, step S5 comprises the following steps:

[0137] Step S51: if the RH furnace steel production smelting requirement is to produce steel that requires deep decarburization and true air conditioning composition, the steelmaking working mode of the RH furnace is set to a deep decarburization pump removal processing mode;

[0138] The embodiment of the present invention determines what the production and smelting requirements of the RH furnace steel type are. If it is determined that the production and smelting requirements of the RH furnace steel type are to produce steel types that require deep decarburization and vacuum conditioning, the steelmaking working mode of the RH furnace is set to a deep decarburization pump-back processing mode. This processing mode automatically switches to the pump-back mode after the deep decarburization treatment is completed. The operation of a specific chemical composition can be adjusted by adjusting the circulation flow and the vacuum pump operation, thereby optimizing energy use and reducing energy consumption.

[0139] Step S52: performing deep decarburization and pump-back experience screening processing on the historical production experience data of the RH furnace smelting to obtain the RH furnace smelting production experience data under the deep decarburization and pump-back processing mode;

[0140] The embodiment of the present invention screens and processes the production experience data of steel types similar to the deep decarburization and depumping treatment mode in the historical production experience data of RH furnace smelting, so as to screen out the experience data that meets the requirements of the deep decarburization and depumping treatment mode from a large amount of historical production experience data (including the key control production parameters and experience of the corresponding subsystems (including the circulation system and the vacuum pump system)), and finally obtains the RH furnace smelting production experience data under the deep decarburization and depumping treatment mode.

[0141] Step S53: Based on the RH furnace smelting production experience data in the deep decarburization and pump-back processing mode, the circulation system and the vacuum pump system of the RH furnace are processed by summarizing the production control experience, and the production control experience data of the RH furnace circulation system and the production control experience data of the RH furnace vacuum pump system in the deep decarburization and pump-back processing mode are obtained;

[0142] The embodiment of the present invention summarizes the production control experience of the circulation system and the vacuum pump system of the RH furnace based on the RH furnace smelting production experience data under the deep decarburization and depumping treatment mode, so as to integrate the production experience data of controlling the circulation system and the vacuum pump system under the deep decarburization and depumping treatment mode, and finally obtains the production control experience data of the circulation system of the RH furnace and the production control experience data of the vacuum pump system of the RH furnace under the deep decarburization and depumping treatment mode.

[0143] Step S54: performing circulation control parameter generation processing on the circulation system of the RH furnace based on the production control experience data of the circulation system of the RH furnace in the deep decarburization and pump-back processing mode, so as to obtain the circulation system control parameters in the deep decarburization and pump-back processing mode;

[0144] The embodiment of the present invention generates and controls the circulation flow control parameters of the circulation system of the RH furnace in different time periods in combination with the production control experience data of the RH furnace circulation system in the deep decarburization and pump-back processing mode, so as to generate the circulation system control parameters suitable for different time periods in this mode (including the main valve opening start time period, OB start, OB end and decarburization end point (based on the addition of aluminum iron greater than 180kg)), and finally obtains the circulation system control parameters in the deep decarburization and pump-back processing mode.

[0145] Step S55: Based on the production control experience data of the RH furnace vacuum pump system in the deep decarburization and depumping processing mode, the vacuum pump control parameter generation processing is performed on the vacuum pump system of the RH furnace to obtain the vacuum pump system control parameters in the deep decarburization and depumping processing mode.

[0146] The embodiment of the present invention generates and controls the vacuum pump control parameters of the vacuum pump system of the RH furnace in different time periods in combination with the production control experience data of the vacuum pump system of the RH furnace in the deep decarburization and pumping back treatment mode, so as to generate vacuum pump system control parameters suitable for different time periods under this mode (including the main valve opening start time period, 1min (synchronized with the first-stage machine time), 3min, 3.5min and the decarburization end point (based on the addition of aluminum iron greater than 180kg)), and finally obtains the vacuum pump system control parameters in the deep decarburization and pumping back treatment mode.

[0147] The present invention first determines the production and smelting requirements of the RH furnace steel type. If the production and smelting requirements of the RH furnace steel type are to produce steel types that require deep decarburization and vacuum adjustment of the composition, the steelmaking working mode of the RH furnace is set to a deep decarburization and pump-back processing mode. This has a significant effect on the production of steel types that require deep decarburization and vacuum adjustment of the composition. In this processing mode, the RH furnace can more effectively achieve deep decarburization, and at the same time, the composition is accurately adjusted through the vacuum system to meet the specific needs of steel production, thereby improving product quality and process stability. Secondly, the deep decarburization and pump-back experience screening process is performed on the historical production experience data of the RH furnace smelting. The key to this step is to screen out the experience data that meets the requirements of the deep decarburization and pump-back processing mode from a large amount of historical production experience data, thereby providing an accurate data basis for the subsequent production control experience summary process. Then, by summarizing the production control experience of the circulation system and vacuum pump system of the RH furnace based on the smelting production experience data of the RH furnace in the deep decarburization depumping treatment mode, by integrating the production experience data under the deep decarburization depumping treatment mode, the operating characteristics of the circulation system and the vacuum pump system can be better understood and controlled, thereby providing an effective basis for the subsequent control parameter generation and processing. Next, by generating the circulation control parameters of the circulation system of the RH furnace based on the production control experience data of the circulation system of the RH furnace in the deep decarburization depumping treatment mode, the purpose of this step is to generate the circulation system control parameters suitable for this mode based on the production experience data under the deep decarburization depumping treatment mode, so as to ensure that the circulation system can operate stably and meet the deep decarburization requirements of the product. Finally, by generating and processing the vacuum pump control parameters of the vacuum pump system of the RH furnace based on the production control experience data of the RH furnace vacuum pump system in the deep decarburization and depumping treatment mode, the vacuum pump control parameters generated according to the production experience data in the deep decarburization and depumping treatment mode can more accurately meet the requirements of deep decarburization and composition adjustment of steel grades, thereby ensuring the stability and accuracy of the vacuum degree and flow rate of the RH furnace in the deep decarburization and depumping treatment mode, and improving production efficiency and product quality.

[0148] Preferably, step S6 comprises the following steps:

[0149] Step S61: Summarize the process parameters of the circulation system control parameters and the vacuum pump system control parameters in the deep decarburization treatment mode, the circulation system control parameters and the vacuum pump system control parameters in the light treatment mode, the circulation system control parameters and the vacuum pump system control parameters in the present treatment mode, and the circulation system control parameters and the vacuum pump system control parameters in the deep decarburization de-pumping treatment mode to obtain the RH furnace mode steelmaking process parameter table;

[0150] The embodiment of the present invention summarizes the circulation system control parameters and vacuum pump system control parameters in the deep decarburization treatment mode, the circulation system control parameters and vacuum pump system control parameters in the light treatment mode, the circulation system control parameters and vacuum pump system control parameters in the present treatment mode, and the circulation system control parameters and vacuum pump system control parameters in the deep decarburization de-pumping treatment mode, and compiles the steelmaking process parameter table of the RH furnace in different treatment modes according to the summarized control parameters, and finally obtains the RH furnace mode steelmaking process parameter table (such as Figure 4 shown).

[0151] Step S62: writing a control program according to the RH furnace mode steelmaking process parameter table to obtain RH furnace steelmaking control programs of different processing modes;

[0152] The embodiment of the present invention uses step7 programming software to write a corresponding RH furnace steelmaking control program according to the control parameters of the RH furnace under different processing modes in the RH furnace mode steelmaking process parameter table, and ensures that the circulation system and the vacuum pump system of the RH furnace can be controlled according to the set process control parameters, so as to automatically control various production processing modes of the RH furnace, including deep decarburization processing mode, light processing mode, main processing mode and deep decarburization de-pumping processing mode, to ensure that the smelting process of the steel type under different processing modes meets the expected requirements, and finally obtains the RH furnace steelmaking control program of different processing modes.

[0153] Step S63: Using WINCC to perform HMI control interface production processing on the RH furnace steelmaking control program of different processing modes, generate RH furnace steelmaking control interfaces of different processing modes to execute corresponding RH furnace processing mode steelmaking operations.

[0154] The embodiment of the present invention uses WINCC software to produce an HMI (human-computer interaction) control interface for the RH furnace steelmaking control program with different processing modes, so as to design and layout the control interface according to the RH furnace steelmaking control program and corresponding control parameters, including operation buttons, parameter input boxes, status displays, etc., thereby generating a corresponding RH furnace steelmaking control interface, and finally generating an RH furnace steelmaking control interface with different processing modes, so that operators can intuitively monitor and control various parameters and operations of the RH furnace in different processing modes through the interface, including circulation flow, vacuum pump, etc.

[0155] The present invention first integrates the circulation system control parameters and vacuum pump system control parameters under different processing modes, thereby obtaining a comprehensive steelmaking process parameter table. This steelmaking process parameter table contains the key parameters of the RH furnace under different processing modes, such as the circulation flow parameters and vacuum pump parameters that need to be controlled in different time periods, so as to provide accurate guidance for the subsequent control program writing and operation, thereby ensuring good control and stability of the conditions in the RH furnace. Then, the control program is written and processed using step7 programming software according to the RH furnace mode steelmaking process parameter table. The key to this step is that according to the guidance of the process parameter table, a steelmaking control program that can realize the production requirements of steel grades under different processing modes is written. These programs can automatically control various production processing modes of the RH furnace, including deep decarburization processing mode, light processing mode, main processing mode and deep decarburization pump back processing mode, so as to ensure that the smelting process of steel grades under different processing modes meets the expected requirements. Finally, the WINCC software is used to produce the HMI (human-computer interaction) control interface of the RH furnace steelmaking control program with different processing modes, thereby generating the RH furnace steelmaking control interface with different processing modes. The key to this step is that through the generated human-computer interaction control interface, the operator can intuitively monitor and control the various parameters and operations of the RH furnace in different processing modes, including circulation flow, vacuum pump, etc. Such a control interface can improve the operator's work efficiency and operation accuracy, ensure the reliability and stability of the RH furnace conditions and smelting process, so as to realize the full process linkage control of the vacuum pump system and the circulation system in the RH furnace according to the different steel grades.

[0156] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features invented herein.

Claims

1. A novel RH furnace mode steelmaking method, characterized in that: The following steps are involved: Step S1: obtaining RH furnace smelting steel grade information data and RH furnace smelting historical production experience data, and performing steel grade smelting demand analysis on the RH furnace smelting steel grade information data to obtain RH furnace production smelting demand information data of different steel grades; performing smelting condition design processing on the RH furnace production smelting demand information data of different steel grades to obtain RH furnace steel grade production smelting demand conditions, wherein the RH furnace steel grade production smelting demand conditions include the production of ultra-low carbon steel grades, the production of steel grades with a certain degree of decarburization and impurity removal, the production of steel grades with standard composition performance requirements, and the production of steel grades requiring deep decarburization and true air conditioning composition; Step S2: judging and analyzing the steel production and smelting demand conditions of the RH furnace. If the steel production and smelting demand conditions of the RH furnace are to produce ultra-low carbon steel, the steelmaking working mode of the RH furnace is set to the deep decarburization treatment mode, and the circulation and vacuum pump control parameters of the RH furnace are generated based on the historical production experience data of the RH furnace smelting to obtain the circulation system control parameters and vacuum pump system control parameters in the deep decarburization treatment mode; Step S3: If the RH furnace steel production smelting requirement is to produce steel with a certain degree of decarburization and impurity removal, the steelmaking working mode of the RH furnace is set to the light processing mode, and the circulation and vacuum pump control parameters of the RH furnace are generated based on the historical production experience data of the RH furnace smelting to obtain the circulation system control parameters and vacuum pump system control parameters in the light processing mode; Step S4: if the RH furnace steel grade production smelting requirement condition is to produce steel grades with standard composition performance requirements, the steelmaking working mode of the RH furnace is set to this processing mode, and the circulation and vacuum pump control parameters of the RH furnace are generated based on the historical production experience data of the RH furnace smelting to obtain the circulation system control parameters and vacuum pump system control parameters under this processing mode; Step S5: If the RH furnace steel grade production smelting demand condition is to produce steel grades that require deep decarburization and vacuum conditioning composition, the steelmaking working mode of the RH furnace is set to the deep decarburization pump-back processing mode, and the RH furnace is subjected to circulation and vacuum pump control parameter generation processing based on the RH furnace smelting historical production experience data to obtain the circulation system control parameters and vacuum pump system control parameters in the deep decarburization pump-back processing mode; Step S6: Summarize the process parameters of the circulation system control parameters and the vacuum pump system control parameters in the deep decarburization treatment mode, the circulation system control parameters and the vacuum pump system control parameters in the light treatment mode, the circulation system control parameters and the vacuum pump system control parameters in the present treatment mode, and the circulation system control parameters and the vacuum pump system control parameters in the deep decarburization de-pumping treatment mode to obtain the RH furnace mode steelmaking process parameter table; The control program is written according to the RH furnace mode steelmaking process parameter table, and the HMI control interface is produced using WINCC to generate RH furnace steelmaking control interfaces for different processing modes to execute corresponding RH furnace processing mode steelmaking operations.

2. The novel RH furnace mode steelmaking method according to claim 1 is characterized in that: Step S1 includes the following steps: Step S11: obtaining RH furnace smelting steel grade information data and RH furnace smelting historical production experience data; Step S12: performing chemical composition analysis on the RH furnace smelting steel grade information data to obtain the RH furnace smelting steel grade chemical composition information data; Step S13: performing chemical characteristic analysis on the chemical composition information data of the RH furnace smelting steel to obtain the chemical characteristic data of the RH furnace smelting steel; performing smelting steel type classification processing on the chemical composition information data of the RH furnace smelting steel based on the chemical characteristic data of the RH furnace smelting steel to obtain the RH furnace smelting chemical composition information data of different steel types; Step S14: performing steel grade smelting demand analysis on the RH furnace smelting chemical composition information data of different steel grades to obtain RH furnace production smelting demand information data of different steel grades; Step S15: Perform smelting condition design processing on the RH furnace production and smelting demand information data of different steel grades to obtain the RH furnace steel grade production and smelting demand conditions, wherein the RH furnace steel grade production and smelting demand conditions include the production of ultra-low carbon steel grades, the production of steel grades with a certain degree of decarburization and impurity removal, the production of steel grades with standard composition performance requirements, and the production of steel grades that require deep decarburization and true air conditioning composition.

3. The novel RH furnace mode steelmaking method according to claim 2 is characterized in that: Step S13 includes the following steps: Step S131: performing chemical characteristic analysis on the chemical composition information data of the steel grade smelted by the RH furnace to obtain the chemical characteristic data of the steel grade smelted by the RH furnace; Step S132: performing feature selection processing on the chemical feature data of the steel grade smelted in the RH furnace to obtain the chemical parameter content feature data of the steel grade smelted in the RH furnace; Step S133: using a support vector machine algorithm to perform classification model training on the chemical parameter content characteristic data of the RH furnace steel grade to obtain a chemical composition classification model of the RH furnace steel grade; Step S134: using the RH furnace steel chemical composition classification model to classify the RH furnace smelting steel chemical composition information data to obtain RH furnace smelting chemical composition information data of different steel grades.

4. The novel RH furnace mode steelmaking method according to claim 1 is characterized in that: Step S2 includes the following steps: Step S21: judging and analyzing the steel production and smelting requirements of the RH furnace, if the steel production and smelting requirements of the RH furnace are to produce ultra-low carbon steel, setting the steelmaking working mode of the RH furnace to a deep decarburization treatment mode; Step S22: performing deep decarburization treatment experience screening processing on the historical production experience data of RH furnace smelting to obtain the RH furnace smelting production experience data under the deep decarburization treatment mode; Step S23: Based on the RH furnace smelting production experience data in the deep decarburization treatment mode, the circulation system and the vacuum pump system of the RH furnace are processed for production control experience summary, so as to obtain the production control experience data of the RH furnace circulation system and the production control experience data of the RH furnace vacuum pump system in the deep decarburization treatment mode; Step S24: performing circulation control parameter generation processing on the circulation system of the RH furnace based on the production control experience data of the circulation system of the RH furnace in the deep decarburization treatment mode, so as to obtain the circulation system control parameters in the deep decarburization treatment mode; Step S25: Based on the production control experience data of the vacuum pump system of the RH furnace in the deep decarburization treatment mode, the vacuum pump control parameter generation process is performed on the vacuum pump system of the RH furnace to obtain the vacuum pump system control parameters in the deep decarburization treatment mode.

5. The novel RH furnace mode steelmaking method according to claim 4 is characterized in that: Step S24 includes the following steps: Step S241: performing a circulation flow control parameter setting process on the circulation system of the RH furnace in the main valve opening time period based on the production control experience data of the circulation system of the RH furnace in the deep decarburization treatment mode, and obtaining the initial setting control parameters of the circulation flow of the RH furnace in the deep decarburization treatment mode; Step S242: Based on the production control experience data of the RH furnace circulation system in the deep decarburization treatment mode, the initial control parameters of the circulation flow of the RH furnace in the deep decarburization treatment mode are adjusted in real time according to the change of the circulation system time period, so as to obtain the real-time adjustment control parameters of the circulation flow of the RH furnace in the deep decarburization treatment mode; Step S243: performing a judgment and analysis on the end point of the decarburization time period of the circulation system of the RH furnace to obtain the end point of the decarburization time period of the circulation system of the RH furnace in the deep decarburization treatment mode; Step S244: automatically controlling the circulation flow control parameters of the circulation system at the end of the decarburization time period of the RH furnace circulation system based on the production control experience data of the RH furnace circulation system in the deep decarburization treatment mode, and obtaining the circulation flow control parameters of the RH furnace decarburization end point in the deep decarburization treatment mode; Step S245: Combine the initial setting control parameters of the RH furnace circulation flow in the deep decarburization treatment mode, the real-time adjustment control parameters of the RH furnace circulation flow and the RH furnace decarburization endpoint circulation flow control parameters to obtain the circulation system control parameters in the deep decarburization treatment mode.

6. The novel RH furnace mode steelmaking method according to claim 1 is characterized in that: Step S25 includes the following steps: Step S251: performing time period synchronization processing on the vacuum pump system of the RH furnace to obtain a primary machine synchronization time period of the vacuum pump; Step S252: performing vacuum pump control parameter setting processing on the vacuum pump system of the RH furnace at the vacuum pump primary machine synchronization time period based on the production control experience data of the RH furnace vacuum pump system in the deep decarburization treatment mode, and obtaining the initial setting control parameters of the RH furnace vacuum pump in the deep decarburization treatment mode; Step S253: Based on the production control experience data of the RH furnace vacuum pump system in the deep decarburization treatment mode, the initial control parameters of the RH furnace vacuum pump in the deep decarburization treatment mode are adjusted in real time according to the change of the vacuum pump system time period, so as to obtain the real-time adjustment control parameters of the RH furnace vacuum pump in the deep decarburization treatment mode; Step S254: performing vacuum pressure time period limitation processing on the vacuum pump system of the RH furnace to obtain the vacuum pump pressure limitation time period of the RH furnace; Step S255: automatically controlling the vacuum pump control parameters of the vacuum pump system at the RH furnace vacuum pump pressure limiting time period based on the production control experience data of the RH furnace vacuum pump system in the deep decarburization treatment mode, and obtaining the RH furnace pressure limiting vacuum pump control parameters in the deep decarburization treatment mode; Step S256: Combine the initial control parameters of the RH furnace vacuum pump in the deep decarburization treatment mode, the real-time adjustment control parameters of the RH furnace vacuum pump, and the RH furnace pressure limiting vacuum pump control parameters to obtain the vacuum pump system control parameters in the deep decarburization treatment mode.

7. The novel RH furnace mode steelmaking method according to claim 1 is characterized in that: Step S3 includes the following steps: Step S31: if the RH furnace steel production smelting requirement is to produce steel with a certain degree of decarburization and impurity removal, the steelmaking working mode of the RH furnace is set to a light processing mode; Step S32: performing light treatment experience screening processing on the historical production experience data of RH furnace smelting to obtain the production experience data of RH furnace smelting in the light treatment mode; Step S33: Based on the RH furnace smelting production experience data in the light processing mode, the circulation system and the vacuum pump system of the RH furnace are processed by summarizing the production control experience, and the production control experience data of the RH furnace circulation system and the production control experience data of the RH furnace vacuum pump system in the light processing mode are obtained; Step S34: performing circulation control parameter generation processing on the circulation system of the RH furnace based on the production control experience data of the circulation system of the RH furnace in the light processing mode, so as to obtain the circulation system control parameters in the light processing mode; Step S35: performing vacuum pump control parameter generation processing on the vacuum pump system of the RH furnace based on the production control experience data of the vacuum pump system of the RH furnace in the light processing mode to obtain the vacuum pump system control parameters in the light processing mode.

8. The novel RH furnace mode steelmaking method according to claim 1 is characterized in that: Step S4 includes the following steps: Step S41: if the steel grade production smelting requirement condition of the RH furnace is to produce steel grades with standard composition and performance requirements, the steelmaking working mode of the RH furnace is set to this processing mode; Step S42: Performing this processing experience screening process on the historical production experience data of RH furnace smelting to obtain the production experience data of RH furnace smelting under this processing mode; Step S43: Based on the RH furnace smelting production experience data in this processing mode, the circulation system and the vacuum pump system of the RH furnace are processed for production control experience summary, so as to obtain the production control experience data of the RH furnace circulation system and the production control experience data of the RH furnace vacuum pump system in this processing mode; Step S44: performing circulation control parameter generation processing on the circulation system of the RH furnace based on the production control experience data of the circulation system of the RH furnace in this processing mode, so as to obtain the circulation system control parameters in this processing mode; Step S45: performing vacuum pump control parameter generation processing on the vacuum pump system of the RH furnace based on the production control experience data of the vacuum pump system of the RH furnace in this processing mode to obtain the vacuum pump system control parameters in this processing mode.

9. The novel RH furnace mode steelmaking method according to claim 1 is characterized in that: Step S5 includes the following steps: Step S51: if the RH furnace steel production smelting requirement is to produce steel that requires deep decarburization and true air conditioning composition, the steelmaking working mode of the RH furnace is set to a deep decarburization pump removal processing mode; Step S52: performing deep decarburization and pump-back experience screening processing on the historical production experience data of the RH furnace smelting to obtain the RH furnace smelting production experience data under the deep decarburization and pump-back processing mode; Step S53: Based on the RH furnace smelting production experience data in the deep decarburization and pump-back processing mode, the circulation system and the vacuum pump system of the RH furnace are processed by summarizing the production control experience, and the production control experience data of the RH furnace circulation system and the production control experience data of the RH furnace vacuum pump system in the deep decarburization and pump-back processing mode are obtained; Step S54: performing circulation control parameter generation processing on the circulation system of the RH furnace based on the production control experience data of the circulation system of the RH furnace in the deep decarburization and pump-back processing mode, so as to obtain the circulation system control parameters in the deep decarburization and pump-back processing mode; Step S55: Based on the production control experience data of the RH furnace vacuum pump system in the deep decarburization and depumping processing mode, the vacuum pump control parameter generation processing is performed on the vacuum pump system of the RH furnace to obtain the vacuum pump system control parameters in the deep decarburization and depumping processing mode.

10. The novel RH furnace mode steelmaking method according to claim 1 is characterized in that: Step S6 includes the following steps: Step S61: Summarize the process parameters of the circulation system control parameters and the vacuum pump system control parameters in the deep decarburization treatment mode, the circulation system control parameters and the vacuum pump system control parameters in the light treatment mode, the circulation system control parameters and the vacuum pump system control parameters in the present treatment mode, and the circulation system control parameters and the vacuum pump system control parameters in the deep decarburization de-pumping treatment mode to obtain the RH furnace mode steelmaking process parameter table; Step S62: writing a control program according to the RH furnace mode steelmaking process parameter table to obtain RH furnace steelmaking control programs of different processing modes; Step S63: Using WINCC to perform HMI control interface production processing on the RH furnace steelmaking control program of different processing modes, generate RH furnace steelmaking control interfaces of different processing modes to execute corresponding RH furnace processing mode steelmaking operations.

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