根据邯钢CSP薄板坯流程及结晶器的特点,分析了结晶器渣条的存在对黏结漏钢、夹渣漏钢、纵裂漏钢等形式漏钢的影响机理。结合结晶器液面、热流、保护渣种类、结晶器上口火焰翻腾情况、钢包烧眼、漏钢预报报警情况等众多工艺生产因素对渣条形成情况进行判断分析,达到了对结晶器捞渣操作的精细控制,优化了结晶器内坯壳的润滑和传热条件,对降低漏钢率起到了显著的效果,使得CSP年漏钢率由0.07%降低到了0.03%。
Abstract
Based on the characteristics of CSP thin slab process and mold in Handan Iron and Steel Co., Ltd. the influence mechanism of slag strip on the breakout such as adhesive breakout, slag leakage, longitudinal breakout is analyzed. Combining many process and production factors such as mold liquid steel level, heat flow, mold powder type, mold top mouth flame, breakout prediction alarm to analyze the formation of slag strips, it achieves fine control of the slag removal operation of the mold, optimizes the lubrication and heat transfer conditions of the shell in the mold, and has a significant effect on reducing the breakout rate. The annual breakout rate of CSP is reduced from 0.07% to 0.03%.
关键词
薄板坯连铸 /
结晶器 /
保护渣 /
渣条 /
捞渣 /
操作 /
漏钢 /
控制
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Key words
thin slab continuous casting /
mold /
mould powder /
slag /
slag removal /
operation /
breakout /
control
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参考文献
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