Dynamic temperature control system and control method of molten steel process in steelmaking and continuous casting

Abstract

The invention provides a dynamic temperature control system and control method in the steel-making liquid steel continuous casting process. The dynamic temperature control system comprises an L3 production plan management module, an L3 process temperature computation module, an L3 workstation actual production management module, an L2 workstation production and temperature control module and an L2 actual production management module. The L3 production plan management module is used for generating or adjusting a steel-making continuous casting production plan according to production contract conditions, the actual conditions in the production process of all workstations and the changes of the workstations. The L3 process temperature computation module is used for computing the target temperatures corresponding to all the workstations according to the production plan of the L3 production plan management module. The L2 workstation production and temperature control module is used for conducting process control over temperatures according to the received liquid steel target temperatures, and qualified liquid steel is produced. The L2 actual production management module is used for collecting the actual production of the workstations in the current heat and uploading the actual production to the L3 workstation actual production management module. According to the dynamic temperature control system and control method in the steel-making liquid steel continuous casting process, precise control over the final temperatures of all the workstations can be achieved.

Description

Technical field: [0001] The invention relates to a temperature dynamic control system and a control method in the steelmaking and continuous casting molten steel process, belonging to the technical field of metallurgy control. Background technique: [0002] In the steelmaking production process, the production plan is arranged first, and then the production of each production station is arranged according to the production plan. The production stations include molten iron pretreatment, converter, and various molten steel refining stations (such as RH, LF, DV, etc. ) and continuous casting machine casting and other production stations to produce qualified slabs. The steelmaking production process mainly controls the composition and temperature of the molten steel from the converter to the continuous casting. For the temperature control of molten steel, the commonly used method is to set the target degree of molten steel for each station, which is realized by each station. Du...

AI Technical Summary

Problems solved by technology

For the temperature control of molten steel, the commonly used method is to set the target degree of molten steel for each station, which is realized by each station. Due to the influence of the end temperature of the molten steel temperature at a certain station over the limit and the length of molten steel transportation during the production process of molten steel etc., causing the temperature of molten steel to exceed the limit when it reaches the start of pouring, thereby affecting the production rhythm and the quality of the slab