电弧炉超音速集束氧枪吹炼的钢水留碳操作实践  

Catch Carbon Practice of Arc Furnace Ultrasonic Coherent Jet Oxygen Lance Blowing Liquid Steel

作　　者：秦军[1] 

机构地区：[1]宝钢集团新疆八一钢铁股份公司第二炼钢厂,乌鲁木齐830022

出　　处：《特殊钢》2008年第6期44-46,共3页Special Steel

摘　　要：建立了70 t电弧炉冶炼中高碳钢的留碳操作的数学模型。按照出钢时钢水碳含量的要求,基于入炉废钢和铁水成分,控制超音速集束氧枪的吹炼参数,合理使用炉门自耗式碳氧枪和采用相应的炉渣碱度,以实现目标留碳操作。0.55%C钢的冶炼实践表明,当热装铁水30%时,电弧炉终点[C]为0.40%～0.65%的炉次≥85%,显著降低了冶炼成本。Mathematic model for catch carbon practice of steelmaking medium and high carbon steel in a 70 t arc furnace has been established. According to the requirement of carbon content in liquid steel at tapping, based on the chemical compositions of charged scrap and hot metal, the blowing parameters of ultrasonic coherent jet oxygen lance are controUed suitably to use consumable oxygen-carbon lance at door and the available slag basicity is used to carry out aim catch carbon practice. The steelmaking practice of 0. 55% C steel showed that with charged 30% hot metal, the proportion of heats with arc furnace end point [ C] 0. 40% - 0. 65% was ≥85% to obviously decrease steel melting cost.

关 键 词：电弧炉 热装铁水 超音速集束氧枪 留碳操作 

分 类 号：TF741.5[冶金工程—钢铁冶金] TG457.11[金属学及工艺—焊接]