Online control method and system capable of maintaining steel-making and continuous casting production stability

Abstract

The invention provides an online control method and system capable of maintaining steel-making and continuous casting production stability. The method comprises: arranging a technological parameter of a steel-making and continuous casting production process; obtaining actual production information of the steel-making and continuous casting production process; performing disturbance identification; determining the furnace operation of all disturbance influences; determining furnace operation work time conflict situations generated by disturbance; determining continuous casting planned casting break situations generated by the disturbance; forecasting scheduling plan abnormity conditions caused by furnace operation work time conflicts; forecasting scheduling plan abnormity conditions caused by continuous casting planned casting break; performing online adjustment on a scheduling plan; and performing on-site steel-making and continuous casting production adjustment. According to the invention, the continuity and stability of the scheduling plan are improved based on disturbance identification, disturbance influence furnace analysis, furnace operation time conflict analysis, continuous casting planned casting break analysis, furnace operation time conflict condition determining, continuous casting planned casting break condition determining and online scheduling.

Description

technical field [0001] The invention belongs to the technical field of steelmaking-continuous casting, and in particular relates to an online control method and system for maintaining the stability of steelmaking-continuous casting production. Background technique [0002] Driven by high-efficiency continuous casting technology, steelmaking-continuous casting production puts forward higher requirements for production rhythm. Refining is the process of moving molten steel to another container (mainly ladle) for refining, degassing, deoxidizing, desulfurizing, homogenizing the composition and temperature of molten steel, removing inclusions, controlling composition and heating up, also called "secondary steelmaking or ladle refining". Refining has become an indispensable link in the modern steel production process, especially the combination of refining and continuous casting is an important means to ensure smooth production of continuous casting, expand continuous casting va...

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Problems solved by technology

None of the above-mentioned patents has conducted an in-depth analysis of the degree of impact of the disturbance on the initial scheduling plan in the case of production abnormalities in the steelmaking-continuous casting production plan, especially in the case of furnace operation delays, so the adjustment adopted The method, especially the complete rescheduling method, will have too much impact on the initial scheduling plan, making the initial scheduling plan unable to maintain good continuity and stability, and thus making the production in the process of frequent adjustments, which is not conducive to the stable and smooth operation of production

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