A slab continuous casting process monitoring system

Abstract

The application discloses a slab continuous casting process monitoring system, and belongs to the technical field of metallurgy. The monitoring system comprises a continuous casting process state monitoring module, a secondary cooling loop working state monitoring module, a casting blank production process data tracing module, a roll gap real-time monitoring module and an alarm history module. The monitoring system is developed by Directus, a system framework is built by the Directus, data management and safe access are realized, a front-end and back-end separation design is adopted, data interaction is realized by API interface, business logic is realized in the back-end, including setting of alarm rules, and data display is completed in the front-end. Data monitored by the system in real time is collected by a field PLC industrial computer, and the data is stored into a slab continuous casting process database. The slab continuous casting process database comprises continuous casting equipment parameters and continuous casting production real-time data. The system is helpful for monitoring equipment state and process parameters, improving casting blank quality, production efficiency and production safety.

Description

Technical Field

[0001] This invention belongs to the field of metallurgical technology, and in particular relates to a monitoring system for slab continuous casting process. Background Technology

[0002] In recent years, China's steel industry has experienced rapid development, with a significant improvement in steelmaking efficiency. Continuous casting, as a core component of the steel metallurgical process, plays a crucial role in actual production. Continuous casting improves steel utilization, reduces fuel consumption, simplifies the production process, and increases both output and quality. Therefore, continuous casting technology has significant development potential in the metallurgical industry today.

[0003] Continuous casting is a casting process in which molten steel at high temperatures is forced to cool in a crystallizer, and then a newly formed slab of a certain thickness is pulled out at a certain speed by a leveling device, and then cut into the required size. The development trend of modern continuous casting technology is towards high-efficiency continuous casting, which not only pursues casting speed but also emphasizes slab quality; high output and casting quality are equally important. Currently, many aspects of steel production still rely on manual monitoring and control, which is not only lagging but also subject to many uncertain human factors, seriously affecting the production and quality stability of products. Therefore, developing a low-cost, easy-to-operate production process monitoring system to achieve digital and intelligent production process monitoring is of significant practical importance. Summary of the Invention

[0004] In view of the above-mentioned problems, the present invention discloses a slab continuous casting process monitoring system.

[0005] The present invention adopts the following technical solution:

[0006] A slab continuous casting process monitoring system is provided. The system is used for monitoring and controlling the slab continuous casting process. The system includes a continuous casting process status monitoring module, a secondary cooling circuit working status monitoring module, a slab production process data traceability module, a roll gap real-time monitoring module, and an alarm history module.

[0007] The continuous casting process status monitoring module is used for continuous casting process status monitoring; the secondary cooling circuit working status monitoring module is used for secondary cooling circuit working status monitoring; the billet production process data traceability module is used for billet production process data traceability; the roll gap real-time monitoring module is used for roll gap real-time monitoring; and the alarm history module is used to determine whether an alarm has occurred and to monitor historical alarm data.

[0008] The monitoring system is developed using Directus, which forms the system framework to achieve data management and secure access. It features a front-end / back-end separation design, using API interfaces for data interaction. The back-end implements business logic, including alarm rule settings, while the front-end displays the data. The system collects real-time monitoring data from a field PLC industrial control computer, and this data is stored in a slab continuous casting process database. This database includes continuous casting equipment parameters and real-time continuous casting production data.

[0009] Furthermore, the monitoring content of the continuous casting process status monitoring module includes: real-time monitoring of continuous casting process parameters and historical query of continuous casting process parameters; the continuous casting process parameters include: crystallizer parameters, secondary cooling zone 1 parameters and secondary cooling zone 2 parameters.

[0010] Its further characteristics are,

[0011] The crystallizer parameters include: liquid level, stopper rod position, and crystallizer inlet water temperature;

[0012] The parameters of the second cooling zone 1 include: the inlet and outlet flow rate of the spray zone 1, the inlet and outlet pressure value, and the narrow left-side flow rate value;

[0013] The parameters of the second cooling zone 2 include: the flow rate value at the center of the inner and outer sides of the spray zone 2, the pressure value at the center of the inner and outer sides, and the flow rate value at the inner and outer edges 1.

[0014] Furthermore, the monitoring content of the secondary cooling circuit working status monitoring module includes: actual water flow rate, water flow rate deviation, and instantaneous working status;

[0015] The actual water flow rate is the water flow rate monitored in real time for each loop; the water flow rate deviation is the difference between the actual water flow rate and the theoretical water flow rate; the instantaneous working status is whether the nozzle is blocked or leaking, and the blockage or leakage status includes: blockage, slight blockage, normal, slight leakage or leakage.

[0016] Furthermore, the traceability content of the billet production process data traceability module includes: complete casting information, billet data within the casting cycle, and parameter exceeding limits;

[0017] The complete casting information includes the steel grade of the billet, production time, furnace number, and inspection results; the billet data within the casting cycle includes relevant data from the casting cycle crystallizer and secondary cooling zones; the parameter over-limit situation refers to the over-limit time, actual value, and set value of the parameter when an over-limit alarm occurs.

[0018] Furthermore, the monitoring content of the real-time roll gap monitoring module includes the inlet left roll gap value, inlet right roll gap value, outlet left roll gap value, and outlet right roll gap value of fourteen roll segments.

[0019] Furthermore, the monitoring content of the alarm history module includes: real-time acquisition of continuous casting machine sensor data, monitoring whether the continuous casting machine sensor data exceeds the alarm rule set value range, and if it exceeds the set value range, it is judged as an alarm. The monitoring content also includes monitoring historical alarm data. The continuous casting machine sensor data includes the real-time value of the crystallizer liquid level, the real-time position of the stopper rod, and the roll gap value of each roll section.

[0020] Furthermore, the continuous casting equipment parameters include: continuous casting machine parameters, crystallizer parameters, and secondary cooling zone parameters;

[0021] The parameters of the continuous casting machine include: furnace capacity, continuous casting machine radius, metallurgical length, billet thickness, billet width, and slab length;

[0022] The crystallizer parameters include: copper plate length, distance from top shaft to bottom shaft, distance from bottom shaft to bottom edge, maximum taper, minimum taper, casting thickness range, casting width range, maximum width limit of automatic width adjustment, minimum width limit of automatic width adjustment, nominal value of crystallizer vibration stroke, and mechanical value of crystallizer vibration stroke.

[0023] The parameters of the second cooling zone include the distance between the start and end positions of each continuous casting section and the meniscus.

[0024] Furthermore, the real-time data for continuous casting production includes: heat number, casting flow information, and cutting information; the heat number includes heat number, ladle casting start time, and ladle casting end time; the casting flow information includes casting speed, tundish molten steel temperature, and crystallizer-related parameters; the cutting information includes cutting time, cutting head position, and cutting tail position.

[0025] Furthermore, the data flow of the monitoring system includes:

[0026] S1, PLC industrial control computer reads sensor data and collects sensor data values ​​of continuous casting machine;

[0027] S2. Store the sensor data values ​​of the continuous casting machine into the slab continuous casting process database;

[0028] S3. Alarm monitoring: When the sensor data value of the continuous casting machine exceeds the alarm rule set value range, it is judged as an alarm and the alarm record is stored in the slab continuous casting process database.

[0029] S4. Read complete casting information from the slab continuous casting process database, analyze the slab data within the casting cycle, and complete the data traceability of the slab production process.

[0030] S5. The alarm monitoring module collects the sensor data values ​​of the continuous casting machine in real time. When the sensor data values ​​of the continuous casting machine exceed the alarm rule setting range, the alarm history module displays the alarm information and alarm time.

[0031] Beneficial effects:

[0032] The monitoring system disclosed in this invention enables real-time monitoring of equipment status and process parameters during the slab continuous casting process. It also enables real-time monitoring of multiple modules, allowing for rapid response to changes in process parameters during production. This ensures the stability of the production process, significantly improving both production efficiency and safety, while also enhancing the quality of the cast slab.

[0033] The monitoring system allows users to query detailed production history by billet number, improving product quality traceability. Through real-time monitoring and historical data analysis, it can continuously optimize the continuous casting process. The alarm history module can effectively prevent production accidents, reduce downtime and maintenance costs, and improve production efficiency and billet quality by alarming and monitoring historical alarm data.

[0034] The monitoring system of this invention allows users to intuitively and quickly obtain the required slab continuous casting process information, significantly improving the efficiency of human-machine interaction. This invention provides a comprehensive, real-time, and efficient monitoring solution for slab continuous casting production, significantly enhancing the level of intelligent production management.

[0035] Furthermore, the monitoring system disclosed in this invention solves the problems existing in the development of current continuous casting monitoring systems, such as platform dependence, high development costs, difficulty in updating and maintaining, and low flexibility and scalability, which is conducive to the further improvement and application of slab continuous casting process monitoring systems. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the overall framework of a slab continuous casting process monitoring system according to the present invention;

[0038] Figure 2 This is a schematic diagram of the slab continuous casting process database structure in the monitoring system of this invention;

[0039] Figure 3 This is a schematic diagram of the data flow in a slab continuous casting process monitoring system according to the present invention. Detailed Implementation

[0040] To better understand the technical solution of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0042] Example 1

[0043] A slab continuous casting process monitoring system is provided. The system is used for monitoring and controlling the slab continuous casting process. The system includes a continuous casting process status monitoring module, a secondary cooling circuit operating status monitoring module, a slab production process data traceability module, a roll gap real-time monitoring module, and an alarm history module. Figure 1 As shown.

[0044] The continuous casting process status monitoring module is used for continuous casting process status monitoring; the secondary cooling circuit working status monitoring module is used for secondary cooling circuit working status monitoring; the billet production process data traceability module is used for billet production process data traceability; the roll gap real-time monitoring module is used for roll gap real-time monitoring; and the alarm history module is used to determine whether an alarm has occurred and to monitor historical alarm data.

[0045] The monitoring system is developed using Directus, which forms the system framework for data management and secure access. It features a front-end / back-end separation design, using API interfaces for data interaction. The back-end implements business logic, including alarm rule settings, while the front-end displays the data. Real-time monitoring data is collected by a field PLC industrial computer and stored in a slab continuous casting process database. This database includes continuous casting equipment parameters and real-time continuous casting production data. Figure 2 As shown.

[0046] Furthermore, the monitoring content of the continuous casting process status monitoring module includes: real-time monitoring of continuous casting process parameters and historical query of continuous casting process parameters; such as... Figure 1 As shown, the continuous casting process parameters include: crystallizer parameters, secondary cooling zone 1 parameters, and secondary cooling zone 2 parameters.

[0047] Its further characteristics are,

[0048] The crystallizer parameters include: liquid level, stopper rod position, and crystallizer inlet water temperature;

[0049] The parameters of the second cooling zone 1 include: the inlet and outlet flow rate of the spray zone 1, the inlet and outlet pressure value, and the narrow left-side flow rate value;

[0050] The parameters of the second cooling zone 2 include: the flow rate value at the center of the inner and outer sides of the spray zone 2, the pressure value at the center of the inner and outer sides, and the flow rate value at the inner and outer edges 1.

[0051] Furthermore, the monitoring content of the secondary cooling circuit working status monitoring module includes: actual water flow rate, water flow rate deviation, and instantaneous working status;

[0052] The actual water flow rate is the water flow rate monitored in real time for each loop; the water flow rate deviation is the difference between the actual water flow rate and the theoretical water flow rate; the instantaneous working status is whether the nozzle is blocked or leaking, and the blockage or leakage status includes: blockage, slight blockage, normal, slight leakage or leakage.

[0053] Furthermore, the traceability content of the billet production process data traceability module includes: complete casting information, billet data within the casting cycle, and parameter exceedance situations; such as... Figure 1 As shown.

[0054] The complete casting information includes the steel grade of the billet, production time, furnace number, and inspection results; the billet data within the casting cycle includes relevant data from the casting cycle crystallizer and secondary cooling zones; the parameter over-limit situation refers to the over-limit time, actual value, and set value of the parameter when an over-limit alarm occurs.

[0055] Furthermore, the monitoring content of the real-time roll gap monitoring module includes the inlet left roll gap value, inlet right roll gap value, outlet left roll gap value, and outlet right roll gap value of fourteen roll segments.

[0056] Furthermore, the monitoring content of the alarm history module includes: real-time acquisition of continuous casting machine sensor data, monitoring whether the continuous casting machine sensor data exceeds the alarm rule set value range, and if it exceeds the set value range, it is judged as an alarm. The monitoring content also includes monitoring historical alarm data. The continuous casting machine sensor data includes the real-time value of the crystallizer liquid level, the real-time position of the stopper rod, and the roll gap value of each roll section.

[0057] Furthermore, the continuous casting equipment parameters include: continuous casting machine parameters, crystallizer parameters, and secondary cooling zone parameters;

[0058] The parameters of the continuous casting machine include: furnace capacity, continuous casting machine radius, metallurgical length, billet thickness, billet width, and slab length;

[0059] The crystallizer parameters include: copper plate length, distance from top shaft to bottom shaft, distance from bottom shaft to bottom edge, maximum taper, minimum taper, casting thickness range, casting width range, maximum width limit of automatic width adjustment, minimum width limit of automatic width adjustment, nominal value of crystallizer vibration stroke, and mechanical value of crystallizer vibration stroke.

[0060] The parameters of the second cooling zone include the distance between the start and end positions of each continuous casting section and the meniscus.

[0061] Furthermore, the real-time data for continuous casting production includes: heat number, casting flow information, and cutting information; the heat number includes heat number, ladle casting start time, and ladle casting end time; the casting flow information includes casting speed, tundish molten steel temperature, and crystallizer-related parameters; the cutting information includes cutting time, cutting head position, and cutting tail position.

[0062] Furthermore, the data flow of the monitoring system includes:

[0063] S1, PLC industrial control computer reads sensor data and collects sensor data values ​​of continuous casting machine;

[0064] S2. Store the sensor data values ​​of the continuous casting machine into the slab continuous casting process database;

[0065] S3. Alarm monitoring: When the sensor data value of the continuous casting machine exceeds the alarm rule set value range, it is judged as an alarm and the alarm record is stored in the slab continuous casting process database.

[0066] S4. Read complete casting information from the slab continuous casting process database, analyze the slab data within the casting cycle, and complete the data traceability of the slab production process.

[0067] S5. The alarm monitoring module collects sensor data values ​​from the continuous casting machine in real time. When the sensor data values ​​exceed the alarm rule set range, the alarm history module displays the alarm information and alarm time. Figure 3 As shown.

[0068] Example 2

[0069] The creation of the slab continuous casting process monitoring system utilizes Directus, a headless CMS (Content Management System) with flexible API interfaces and support for independent front-end development, making it suitable for building complex data-driven applications. The creation process of the monitoring system is as follows:

[0070] 1. Database preparation: Create a slab continuous casting process database in MySQL, test the connection between Directus and the database, and create the corresponding databases and tables to store the data of the continuous casting process.

[0071] 2. Database design and data migration.

[0072] Database structure design: Based on the requirements of the slab continuous casting process, design the table structure in the MySQL database, including continuous casting equipment parameters and real-time continuous casting production data.

[0073] Data migration: Migrate the data collected by the existing PLC industrial control computer to the MySQL database to ensure data integrity and accuracy.

[0074] 3. Directus configuration.

[0075] Create a collection: In the Directus backend interface, create the corresponding collection based on the database table. Each collection corresponds to one data table.

[0076] Configure fields: Configure fields for each collection to ensure that the field types, names, validation rules, etc. are consistent with the actual requirements.

[0077] 4. Backend development.

[0078] API Interface Usage: Through the API interface provided by Directus, backend code can easily read, update, delete, and create data.

[0079] Business logic processing: Implement business logic in the backend, such as alarm rule processing and data tracing logic.

[0080] 5. Front-end development.

[0081] Interface Design: Design the user interface according to requirements, including pages for continuous casting process status monitoring, secondary cooling circuit working status monitoring, billet production process data traceability, roll gap real-time monitoring, and alarm history query.

[0082] Data Interaction: Enables data interaction between the front-end and the Directus back-end, acquires and displays data, and ensures real-time data updates.

[0083] 6. System integration and testing.

[0084] System integration: Integrating the front-end and back-end to ensure smooth data transfer between them.

[0085] Functional testing: Conduct detailed testing on each functional module of the system to ensure that the functions are complete and correct.

[0086] 7. Deployment and maintenance.

[0087] System Deployment: Deploy the developed system to the production environment to ensure stable operation.

[0088] User training: Train system users to enable them to use the system proficiently.

[0089] System maintenance: Regularly monitor the system's operating status, promptly address any potential issues, and ensure the system's long-term stable operation.

[0090] By following the steps above, a slab continuous casting process monitoring system can be developed using Directus, enabling the separation and efficient integration of the front and back ends, thereby improving the system's flexibility and scalability.

[0091] This invention creates a slab continuous casting process monitoring system, including continuous casting process status monitoring, secondary cooling circuit operating status monitoring, slab production process data traceability, real-time roll gap monitoring, and alarm history, such as... Figure 1 As shown. The system is developed using Directus, which forms the framework for data management and secure access. It features a front-end / back-end separation design, using API interfaces for data interaction. Business logic, including alarm rule settings, is implemented on the back-end, while data is displayed on the front-end. Real-time monitoring data is collected by a field PLC industrial computer and stored in a slab continuous casting process database. This database includes continuous casting equipment parameters and real-time continuous casting production data, such as... Figure 2 As shown in the diagram. Users set specific alarm rules in the backend. After reading the PLC sensors, the system determines whether to generate an alarm based on these rules, and the alarm record is stored in the database. Complete casting information is read from the database, and the slab data within each casting cycle is analyzed to complete the data traceability of the slab production process. The data flow diagram of the slab continuous casting process monitoring system is shown in the diagram. Figure 3 As shown.

[0092] Continuous casting process status monitoring includes real-time monitoring of continuous casting process parameters and historical query of continuous casting process parameters. The real-time monitoring page allows users to select data transmitted in real-time from relevant sensors in the A and B flow crystallizers and secondary cooling zones of the continuous casting machine. By selecting the corresponding parameters, the real-time parameter change curves are displayed. Multiple parameters can be viewed simultaneously, and each parameter has its reference value for direct comparison to ensure it does not exceed limits. The historical query page provides a comprehensive date table. Users can select start and end times to query historical data for specified parameters, each with its reference value. This page also provides comparative analysis of historical data to identify patterns and anomalies in the production process.

[0093] The actual and theoretical water flow rates for each secondary cooling circuit can be viewed on the secondary cooling circuit operation status monitoring page. The deviation between the two is presented in the form of a bar chart. If the actual water flow rate is higher than the theoretical water flow rate, the bar chart for this circuit is above the baseline; if the actual water flow rate is lower than the theoretical water flow rate, the bar chart for this circuit is below the baseline. This allows for a clear visual indication of the magnitude of the actual water flow rate deviation for each circuit, with different colors representing different degrees of deviation. The instantaneous operating status of the nozzles is also displayed, including: blocked, slightly blocked, normal, slightly leaking, and leaking. Users can use this information to determine whether the nozzles are functioning correctly on-site. Double-clicking a circuit allows viewing its historical operating status.

[0094] Import billet inspection data into the billet production process traceability page. By entering the billet number, query the relevant data of the crystallizer and secondary cooling zones for that billet casting cycle. The page also displays information such as the steel grade, production time, furnace number, and inspection results of the billet. Additionally, it displays parameters that trigger over-limit alarms, including the specific over-limit time, the actual value of the over-limit parameter, and the set value.

[0095] The inlet left roll gap value, inlet right roll gap value, outlet left roll gap value, and outlet right roll gap value of the fourteen roll segments can be monitored through the real-time roll gap monitoring page.

[0096] View historical alarm messages of this system through the alarm history query page. Write alarm rules for each parameter in the system. When the parameters collected in real time trigger the alarm conditions, this page displays the alarm time and specific alarm information to facilitate user analysis and processing.

[0097] The embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A slab continuous casting process monitoring system, characterized by, The system is used for slab continuous casting process monitoring and monitoring, the system includes continuous casting process state monitoring module, secondary cooling loop working state monitoring module, casting blank production process data tracing module, roll gap real-time monitoring module and alarm history module; The continuous casting process state monitoring module is used for continuous casting process state monitoring; the secondary cooling loop working state monitoring module is used for secondary cooling loop working state monitoring; the casting blank production process data tracing module is used for casting blank production process data tracing; the roll gap real-time monitoring module is used for roll gap real-time monitoring; the alarm history module is used for judging whether to alarm and monitoring historical alarm data; The monitoring system is developed by Directus, and the system framework is built through the Directus, so that data management and safe access are realized; The front-end and back-end are designed separately, API interface is used for data interaction, business logic is realized in the back-end, including setting of alarm rules, and data display is completed in the front-end; The data monitored by the system is collected by a field PLC industrial computer, and the data is stored into a slab continuous casting process database; The slab continuous casting process database includes continuous casting equipment parameters and continuous casting production real-time data; The monitoring content of the continuous casting process state monitoring module includes continuous casting process parameter real-time monitoring and continuous casting process parameter historical query; the continuous casting process parameters include mold parameters, secondary cooling 1 area parameters and secondary cooling 2 area parameters; The mold parameters include liquid level, stopper position and mold water inlet temperature; The secondary cooling 1 area parameters include spraying 1 area inlet and outlet flow, inlet and outlet pressure values and narrow left side flow value; The secondary cooling 2 area parameters include spraying 2 area inside and outside center flow values, inside and outside center pressure values and inside and outside edge 1 flow values; The monitoring content of the secondary cooling loop working state monitoring module includes actual water flow, water flow deviation and instantaneous working state; The actual water flow is the real-time monitored water flow of each loop; the water flow deviation is the difference between the actual water flow and the theoretical water flow; the instantaneous working state is whether the nozzle is blocked or leaked, and the blocking or leaking condition includes blocking, slight blocking, normal, slight leakage or leakage; The tracing content of the casting blank production process data tracing module includes complete casting information, casting blank data in a casting and parameter overrun condition; the parameter overrun condition is the overrun time, actual value and set value of the parameter when the overrun alarm occurs; The monitoring content of the roll gap real-time monitoring module includes the inlet left roll gap value, inlet right roll gap value, outlet left roll gap value and outlet right roll gap value of fourteen roll sections.

2. The monitoring system of claim 1, wherein, The complete casting information includes steel grade of the casting blank, production time, furnace number and table inspection result; the casting blank data in a casting includes related data of the casting blank casting mold and secondary cooling area.

3. The monitoring system of claim 1, wherein, The monitoring content of the alarm history module includes: real-time acquisition of continuous casting machine sensor data, monitoring whether the continuous casting machine sensor data exceeds the alarm rule set value range, and if it exceeds the set value range, it is judged as an alarm. The monitoring content also includes monitoring historical alarm data. The continuous casting machine sensor data includes the real-time value of the crystallizer liquid level, the real-time position of the stopper rod, and the roll gap value of each roll section.

4. The monitoring system of claim 1, wherein, The parameters of the continuous casting equipment include: continuous casting machine parameters, crystallizer parameters, and secondary cooling zone parameters; The parameters of the continuous casting machine include: furnace capacity, continuous casting machine radius, metallurgical length, billet thickness, billet width, and slab length; The crystallizer parameters include: copper plate length, distance from top shaft to bottom shaft, distance from bottom shaft to bottom edge, maximum taper, minimum taper, casting thickness range, casting width range, maximum width limit of automatic width adjustment, minimum width limit of automatic width adjustment, nominal value of crystallizer vibration stroke, and mechanical value of crystallizer vibration stroke. The parameters of the second cooling zone include the distance between the start and end positions of each continuous casting section and the meniscus.

5. The monitoring system of claim 1, wherein, The real-time data for continuous casting production includes: furnace batch information, casting flow information, and cutting information; The furnace information includes furnace number, ladle casting start time, and ladle casting end time; the casting flow information includes casting speed, tundish molten steel temperature, and crystallizer-related parameters; the cutting information includes cutting time, cutting head position, and cutting tail position.

6. The monitoring system of claim 1, wherein, The data flow of the monitoring system includes: S1, PLC industrial control computer reads sensor data and collects sensor data values ​​of continuous casting machine; S2. Store the sensor data values ​​of the continuous casting machine into the slab continuous casting process database; S3. Alarm monitoring: When the sensor data value of the continuous casting machine exceeds the alarm rule set value range, it is judged as an alarm and the alarm record is stored in the slab continuous casting process database. S4. Read complete casting information from the slab continuous casting process database, analyze the slab data within the casting cycle, and complete the data traceability of the slab production process. S5. The alarm monitoring module collects the sensor data values ​​of the continuous casting machine in real time. When the sensor data values ​​of the continuous casting machine exceed the alarm rule setting range, the alarm history module displays the alarm information and alarm time.

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