Twenty-high roll mill secondary control system based on Web page

Abstract

The invention discloses a twenty-high roll mill two-stage control system based on a Web page, and the system comprises a PLC which is used for collecting all kinds of state information during the operation of a twenty-high roll mill; the process model library comprises a press-down distribution model, a rolling force model, a roller deformation model, a plate shape model, a temperature model and a roller matching model, and all the models calculate according to various state information collected by the PLC to obtain corresponding production set values and are used for controlling the rolling process of the twenty-high roll mill; and the Web page has the functions of material tracking, rolling schedule, roller management, production management, parameter management and display, and is used for clearly displaying various state information acquired by the PLC and production set values calculated by the process model library in the Web page according to function division. According to the system, precise control and intelligent management of the rolling process of the twenty-high roll mill are achieved, the production efficiency and the high quality rate of a unit are improved, and the operation and maintenance cost is reduced.

Description

Technical Field

[0001] The invention relates to a twenty-high rolling mill, and in particular to a two-level control system of the twenty-high rolling mill based on a Web page. Background Art

[0002] With the increasing market demand for high-strength, ultra-thin non-oriented silicon steel, the development and production of technology and equipment for this type of silicon steel is becoming increasingly important. The twenty-high mill has obvious advantages in rolling ultra-thin silicon steel, and is therefore being used more and more widely.

[0003] The control system is very important for the cold rolling mill, which can affect the high quality rate and production efficiency of the unit. The secondary process control system of the twenty-high cold rolling mill is an important part of the twenty-high rolling mill control system. At present, it has problems such as inaccurate calculation of production data set values, improper data processing and storage, and imperfect material tracking. It is impossible to further improve the adaptability of the existing control system and the control accuracy of strip steel products, and it is difficult to maximize the yield rate and productivity of the unit. Summary of the invention

[0004] The purpose of the present invention is to provide a two-level control system for a twenty-high rolling mill based on a Web page, which realizes precise control and intelligent management of the rolling process of the twenty-high rolling mill, improves the production efficiency and high quality rate of the unit, and reduces the operation and maintenance costs.

[0005] The technical solution adopted by the present invention is: A two-level control system for a twenty-high rolling mill based on a web page, comprising: PLC, used to collect various status information of the twenty-high mill during operation; Process model library, including pressure distribution model, rolling force model, roll deformation model, plate shape model, temperature model and roll matching model. Each model calculates the corresponding production setting value according to various status information collected by PLC, which is used to control the rolling process of the twenty-high mill; The web page has the functions of material tracking, rolling procedures, roll management, production management, parameter management and display. It is used to clearly display the various status information collected by PLC and the production setting values ​​calculated by the process model library in the web page according to the functional division.

[0006] Preferably, the various status information of the twenty-high rolling mill collected by the PLC during operation includes rolling force, rolling speed, rolling direction, current status, inlet temperature, outlet temperature, inlet tension, outlet tension, inlet thickness, outlet thickness, inlet set thickness, outlet set thickness, inlet coiler strip length, outlet coiler strip length, steel type, emulsion flow, rolling line adjustment, uncoiler steel coil number, POR coil diameter, uncoiler strip length, inlet steel coil number, and outlet steel coil number.

[0007] Preferably, various status information collected by the PLC is transmitted to the server of the system via the industrial network.

[0008] Preferably, with regard to each model in the process model library, the reduction distribution model: according to the state information related to the rolling conditions and process requirements, the reduction amount of each roller is calculated to ensure the thickness accuracy and straightness of the strip; the rolling force model: based on the rolling theory and experimental data, the rolling force change during the rolling process is predicted to provide a basis for the adjustment of the rolling mill pressure; the roller deformation model: according to the elastic deformation and thermal deformation of the roller, the actual shape change of the roller during the rolling process is calculated to optimize the rolling parameters; the plate shape model: by controlling the lateral movement and tilting action of the roller, the strip shape is precisely controlled to reduce plate shape defects; the temperature model: according to the heat transfer law during the rolling process, the temperature distribution of the strip is predicted and controlled to ensure the rolling quality and efficiency; the roll matching model: according to the rolling plan and the wear of the rollers, the roll configuration is automatically optimized to improve the use efficiency of the rollers and reduce the production cost.

[0009] Preferably, the Web page includes: a material tracking module, which is used to display the position, status and flow direction of the strip on the rolling line in real time to facilitate production scheduling and monitoring; a rolling procedure module, which is used to display the process parameters, rolling procedures and historical records of the current rolling task, and supports the editing and query of the procedures; a roll management module, which is used to record the usage, wear degree and replacement records of the rolls, so as to manage online rolls and spare rolls; a production management module, which is used to formulate production plans, monitor execution, and generate reports to ensure the efficiency and transparency of production management; a parameter management module, which allows users to adjust system parameters according to actual needs to ensure the flexibility and adaptability of the system; a display module: used to receive data transmitted by the remaining modules and display it to the user.

[0010] Preferably, the remaining modules transmit data to the display module at the front end through a network interface.

[0011] Preferably, the display module enriches the display of data through front-end technology.

[0012] Preferably, the web page interface adopts a B / S architecture, and users can access the system only through a browser.

[0013] The beneficial effects of the present invention are: The system collects data through PLC, calculates production set values ​​through process model library, and displays them through Web pages. It realizes comprehensive integration from data collection to production management, realizes precise control and intelligent management of the rolling process of the twenty-high mill, improves the production efficiency and high quality rate of the unit, reduces operation and maintenance costs, and has significant economic and social benefits: each model in the process model library calculates the corresponding production set values ​​according to the various status information collected by PLC, realizes real-time collection and efficient processing of mill operation data, reduces human intervention and errors, and provides more accurate set values ​​for basic automation, thereby accurately controlling the mill, improving the stability and reliability of the entire production process, and significantly improving the control accuracy and quality of strip products; the introduction of Web pages enables functions such as material tracking, rolling procedures, roll management, production management and parameter management to be displayed intuitively and efficiently, enhancing material tracking and production management capabilities; the system adopts a modular design, and can add new functional modules or optimize existing models according to actual production needs, which is easy to expand and upgrade; users can remotely access the system through the Internet to realize real-time monitoring and remote maintenance of production data, reducing operation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a two-level control system of a twenty-high rolling mill based on a Web page in an embodiment of the present invention. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] This application discloses a two-level control system for a twenty-high rolling mill based on a Web page, such as Figure 1 As shown in Figure 1, it includes three parts: PLC, process model library and Web page. Among them: PLC is used to collect various status information of the twenty-high rolling mill during operation. Figure 1 The process model library includes the pressure distribution model, rolling force model, roll deformation model, plate shape model, temperature model and roll matching model. Each model calculates the corresponding production setting value according to the various status information collected by PLC, which is used to control the rolling process of the twenty-high mill. Figure 1 The web page has the functions of material tracking, rolling procedures, roll management, production management, parameter management and display. It is used to clearly display the various status information collected by PLC and the production setting values ​​calculated by the process model library in the web page according to the functional division. Figure 1 .

[0017] PLC (Programmable Logic Controller) is the core data acquisition unit of this system, which is responsible for real-time and accurate acquisition of various status information of the twenty-high mill during operation. In this embodiment, this information is transmitted to the system server through a highly reliable industrial network to ensure the real-time and accuracy of the data. In this embodiment, PLC adopts modular design, which is convenient for maintenance and upgrading, and supports multiple communication protocols to meet the access requirements of equipment from different manufacturers. In this embodiment, the various status information of the twenty-high mill collected by PLC during operation includes rolling force, rolling speed, rolling direction, current state, inlet temperature, outlet temperature, inlet tension, outlet tension, inlet thickness, outlet thickness, inlet set thickness, outlet set thickness, inlet coiler strip length, outlet coiler strip length, steel type, emulsion flow, rolling line adjustment, uncoiler steel coil number, POR coil diameter, uncoiler strip length, inlet steel coil number, and outlet steel coil number.

[0018] The process model library is a key part of the system to achieve precise control, including but not limited to the pressure distribution model, rolling force model, roll deformation model, plate shape model, temperature model and roll matching model. The above six models are basic models and can be increased according to actual needs. In this embodiment, the specific scheme of each model is: Pressure reduction distribution model: According to the rolling conditions (such as steel type, thickness) and the state information related to the process requirements, the pressure reduction of each roll is calculated to ensure the thickness accuracy and straightness of the strip; Rolling force model: predicts the rolling force changes during the rolling process based on rolling theory and experimental data, providing a basis for adjusting the rolling mill pressure; Roll deformation model: According to the elastic deformation and thermal deformation of the roll, the actual shape change of the roll during the rolling process is calculated to optimize the rolling parameters; Shape model: By controlling the lateral movement and tilting of the rolls, the shape of the strip can be precisely controlled to reduce shape defects. Temperature model: predict and control the temperature distribution of the strip according to the heat transfer law during the rolling process to ensure rolling quality and efficiency; Roller matching model: According to the rolling plan and roll wear, the roll configuration is automatically optimized to improve roll utilization efficiency and reduce production costs.

[0019] The web page includes but is not limited to a material tracking module, a rolling procedure module, a roll management module, a production management module, a parameter management module and a display module. The above six modules are basic modules and can be increased according to actual needs. In this embodiment, the specific scheme of each module is: Material tracking module, used to display the position, status and flow direction of the strip on the rolling line in real time, facilitating production scheduling and monitoring; The rolling procedure module is used to display the process parameters, rolling procedures and historical records of the current rolling task, and supports editing and querying of procedures; Roller management module, used to record the usage, wear and replacement of rolls, so as to manage online rolls and spare rolls; The production management module is used to formulate production plans, monitor execution, and generate reports to ensure the efficiency and transparency of production management; Parameter management module allows users to adjust system parameters (such as model coefficients, control thresholds, etc.) according to actual needs to ensure the flexibility and adaptability of the system; Display module: used to receive data transmitted by other modules and display it to the user.

[0020] In this embodiment, the remaining modules transmit data to the display module at the front end through the network interface (WebApi).

[0021] In this embodiment, the display module enriches the data display through front-end technology.

[0022] In this embodiment, the web page interface adopts a B / S (browser / server) architecture, and users can access the system only through a browser (without installing additional software).

[0023] The system collects data through PLC, calculates production setting values ​​through process model library, and displays classified values ​​through Web pages, realizing comprehensive integration from data collection to production management, and realizing precise control and intelligent management of the rolling process of the twenty-high mill, improving the production efficiency and high quality rate of the unit, reducing operation and maintenance costs, and having significant economic and social benefits: Each model in the process model library calculates the corresponding production setting value based on various status information collected by PLC, realizing real-time collection and efficient processing of rolling mill operation data, reducing human intervention and errors, and providing more accurate setting values ​​for basic automation, thereby accurately controlling the rolling mill, improving the stability and reliability of the entire production process, and significantly improving the control accuracy and quality of strip products; The introduction of web pages enables intuitive and efficient display of functions such as material tracking, rolling procedures, roll management, production management and parameter management, thus enhancing the material tracking and production management capabilities; The system adopts modular design, which can add new functional modules or optimize existing models according to actual production needs, and is easy to expand and upgrade; Users can remotely access the system through the Internet to achieve real-time monitoring and remote maintenance of production data, reducing operation and maintenance costs.

[0024] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. A two-level control system for a twenty-high rolling mill based on a Web page, characterized in that: include: PLC, used to collect various status information of the twenty-high mill during operation; Process model library, including pressure distribution model, rolling force model, roll deformation model, plate shape model, temperature model and roll matching model. Each model calculates the corresponding production setting value according to various status information collected by PLC, which is used to control the rolling process of the twenty-high mill; The web page has the functions of material tracking, rolling procedures, roll management, production management, parameter management and display. It is used to clearly display the various status information collected by PLC and the production setting values ​​calculated by the process model library in the web page according to the functional division.

2. The twenty-high mill secondary control system based on a Web page according to claim 1, characterized in that: The various status information of the twenty-high rolling mill collected by PLC during operation include: rolling force, rolling speed, rolling direction, current status, inlet temperature, outlet temperature, inlet tension, outlet tension, inlet thickness, outlet thickness, inlet set thickness, outlet set thickness, inlet coiler strip length, outlet coiler strip length, steel type, emulsion flow, rolling line adjustment, uncoiler coil number, POR coil diameter, uncoiler strip length, inlet coil number, and outlet coil number.

3. The twenty-high mill secondary control system based on a Web page according to claim 1 or 2, characterized in that: Various status information collected by PLC is transmitted to the system server through the industrial network.

4. The twenty-high mill secondary control system based on a Web page according to claim 1, characterized in that: Regarding the models in the process model library, the reduction distribution model: according to the state information related to the rolling conditions and process requirements, the reduction amount of each roller is calculated to ensure the thickness accuracy and straightness of the strip; the rolling force model: based on the rolling theory and experimental data, the rolling force changes in the rolling process are predicted to provide a basis for the adjustment of the rolling mill pressure; the roll deformation model: according to the elastic deformation and thermal deformation of the roll, the actual shape change of the roll in the rolling process is calculated to optimize the rolling parameters; the plate shape model: by controlling the lateral movement and tilting action of the roll, the strip shape is precisely controlled to reduce plate shape defects; the temperature model: according to the heat transfer law in the rolling process, the temperature distribution of the strip is predicted and controlled to ensure the rolling quality and efficiency; the roll matching model: according to the rolling plan and the wear of the roll, the roll configuration is automatically optimized to improve the efficiency of the roll use and reduce the production cost.

5. The twenty-high mill secondary control system based on a Web page according to claim 1, characterized in that: The web page includes: a material tracking module, which is used to display the position, status and flow direction of the strip on the rolling line in real time, so as to facilitate production scheduling and monitoring; a rolling procedure module, which is used to display the process parameters, rolling procedures and historical records of the current rolling task, and supports the editing and query of procedures; a roll management module, which is used to record the usage, wear degree and replacement records of the rolls, so as to manage online rolls and spare rolls; a production management module, which is used to formulate production plans, monitor execution, and generate reports to ensure the efficiency and transparency of production management; a parameter management module, which allows users to adjust system parameters according to actual needs to ensure the flexibility and adaptability of the system; a display module: used to receive data transmitted by other modules and display it to users.

6. The twenty-high mill secondary control system based on a Web page as claimed in claim 5, characterized in that: The remaining modules transmit data to the display module at the front end through the network interface.

7. The twenty-high mill secondary control system based on a Web page as claimed in claim 5, characterized in that: The display module enriches the data display through front-end technology.

8. The twenty-high mill secondary control system based on a Web page according to any one of claims 1, 5, 6 and 7, characterized in that: The web page interface adopts B / S architecture, and users can access the system only through a browser.

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