100t顶吹转炉双渣深脱磷工艺研究与实践  

Study on Deep Dephosphorization Technology by Double Slag Method in 100t Top-blown Converter and Actual Operations of Dephosphorization

作　　者：曹东[1] 万雪峰[1] 李德刚[1] 廖相巍[1] 王丽娟[1] 康伟[1] 常桂华[1] 

机构地区：[1]鞍钢股份有限公司技术中心,辽宁鞍山114009

出　　处：《鞍钢技术》2011年第6期17-22,共6页Angang Technology

摘　　要：通过对100 t顶吹转炉双渣法深脱磷的工业性试验研究,结合不同吹炼时期冶炼特点,确立了吹炼过程需要控制的原料及操作制度等关键措施。控制倒炉温度、碱度、炉渣中的ω(FeO)及熔渣流动性等因素均是取得良好脱磷效果的重要保证。应用双渣法深脱磷生产试验取得了转炉出钢磷含量平均达到63×10-6,成品平均磷含量达到85×10-6的实绩。Such key measures as raw materials selecting and operating procedures for steel-making to be adjusted during blowing are taken based on the industrial trial study on deep dephosphorization by double slag method in 100 t top-blown converter and combined with blowing characteristics in different blowing periods.It is concluded that these factors such as controlling turning-down temperature,basicity,content of FeO in slag and fluidity of slag are important to get better results of dephosphrization.The average content of P in molten steel during tapping from the converter can reach to 63×10-6 and the average content of P in a finished steel product can reach to 85×10-6 by application of the double slag method in industrial trial.

关 键 词：顶吹转炉 双渣 深脱磷 

分 类 号：TF713[冶金工程—钢铁冶金]