Intelligent judgment and disposal method of continuous casting cut-off accident

Abstract

The invention relates to an intelligent judgment and disposal method of a continuous casting cut-off accident. The intelligent judgment and disposal method of the continuous casting cut-off accident comprises the steps that (1) the production state of a continuous casting machine is automatically monitored, and relevant technology data is collected; (2) the collected technology data is judged; and(3) a cut-off accident is automatically processed, specifically, 1, after the cut-off in the field is accurately determined, a sound and light alarm signal is immediately issued to remind operation staff in the field to enter the field; 2, an emergent closing signal of a flow control mechanism in the field is output, and the flow control mechanism is emergently closed; 3, a production line lengthtracking value L1 and a current real-time production line length tracking value L2 when the cut-off accident occurs are collected; 4, a difference value L of L2 and L1 is calculated; and 5, a tail blank is placed on the lower edge of a submersed nozzle side hole, the technology length value is set to be L3, if L+(the crystallizer length-Y1)=L3, then a machine stopping order of the casting machineis issued, and automatic disposal of the cut-off accident is stopped. According to the intelligent judgment and disposal method, the potential danger that the cut-off accident occurs when the castingsite is unattended is avoided.

Description

Technical field: [0001] The invention relates to an intelligent judgment and disposal method for a continuous casting outage accident, which belongs to the technical field of iron and steel continuous casting. Background technique: [0002] In the iron and steel production process, the so-called continuous casting means that the molten steel in the large ladle is injected into the tundish, and then the molten steel in the tundish is continuously injected into the mold, and the slab initially formed in the mold (there is still a large amount of liquid inside) Molten steel), after exiting from the lower port of the crystallizer, is continuously cooled and formed by secondary cooling, thereby forming a continuous slab pulling process. Due to various reasons, if the molten steel injected from the tundish to the mold is interrupted abnormally, the entire continuous casting process will be interrupted. This abnormal production accident is called a "cut-off" accident in the continu...

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Problems solved by technology

Therefore, it solves the hidden danger of the failure to deal with the outage accident when there is no one on duty at the continuous casting pouring site, resulting in the expansion of the accident.

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