150t转炉终点钢水锰含量分析及控制  

Analysis and control of end-point manganese content of liquid steel in 150t converter

作　　者：郑毅[1] 胡建光[2] 陈志平[1] 

机构地区：[1]上海梅山钢铁股份有限公司技术中心,江苏南京210039 [2]上海梅山钢铁股份有限公司炼钢厂,江苏南京210039

出　　处：《炼钢》2014年第5期9-13,共5页Steelmaking

摘　　要：阐述了转炉冶炼过程中锰的变化规律,分析了终点钢水锰含量的影响因素,结果表明在实际生产中铁水锰含量和转炉终点温度对终点钢水锰含量无显著影响,转炉终点钢水氧化性和渣量是影响转炉终点钢水锰含量的2个关键因素。通过采取渐增式供氧、枪位控制、顶底复吹效果控制、终点成分控制、转炉模型应用、加料制度调整等措施,终点钢水锰质量分数提高至0.081%,节约锰铁合金约0.32kg/t。The variation of manganese during BOF smelting was described and the factors of end-point manganese content of liquid steel were analyzed. The results showed that in production process the manganese content of hot metal and the end-point temperature of liquid steel in converter had no significant effect on end-point manganese content, but oxidization of liquid steel and slag quantity were the key factors. By application of a series of measures such as increasing oxygen supply, controlling lance position, controlling top-bottom combined blown, controlling end-point content, applying converter model and adiusting charging system, the end-point manganese content of liquid steel was increased to 0. 081% and manganese alloy consumption was saved 0.32 kg/t.

关 键 词：转炉 氧含量 渣量 

分 类 号：TF704.2[冶金工程—钢铁冶金]