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烟气分析在100t转炉深脱磷工艺的应用

Application of Off-Gas Analysis for Deep-Dephosphorization Process of 100 t BOF
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摘要 基于对脱磷工艺的理论分析,通过100 t转炉烟气分析控制熔炼过程、终点温度、过程化渣控制和预测终点磷含量以获得低磷钢水。首秦金属材料公司100 t顶底复吹转炉所用铁水的硅含量为0.2%~0.8%,磷含量0.052%~0.090%,管线钢的生产结果表明,烟气分析终点温度(1 580~1 650℃)命中率能达到95%以上;模型预测磷含量与转炉终点实际磷含量分别为0.007 6%和0.0074%,通过烟气分析实现了转炉终点磷含量≤0.010%的目标。 Based on theoretical analysis on dephosphorization in steelmaking process, the off-gas analysis is used to contr61 steel melting process and end-point temperature of molten steel, control slag melting process, forecast end-point phosphorus content in steel and get low phosphorus molten steel. For 100 t top and bottom combined blown converter at Shouqin Metal Materials Co Ltd, the silicon content in hot metal is 0. 2% - 0. 8% and the phosphorus content is 0. 052% - 0. 090%, the pipeline steel production results show that by off-gas analysis the percentage of hits for end-point temperature of molten-steel (1 580 - 1 650 ℃ ) is more than 95%, and thee forecasting byimodel and the measuring BOF end-point phosphorus content are respectively 0. 007 6% and 0.007 4%. The aim of BOF end-point phosphorus content ≤0. 010% is realized by off-gas analysis.
出处 《特殊钢》 北大核心 2013年第3期39-41,共3页 Special Steel
关键词 100T转炉 炼钢 烟气分析 终点控制 低磷钢 100 t BOF, Steelmaking, Off-Gas Analysis, End-Point Control, Low Phosphorus Steel
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