首钢股份3号高炉高富氧冶炼实践  

High-rate Oxygen enriched Smelting Operation of Shougang No.3 BF

作　　者：张俊伟 张海滨[1] 程洪全 贾新 王荣刚 罗德庆 ZHANG Junwei;ZHANG Haibin;CHENG Hongquan;JIA Xin;WANG Ronggang;LUO Deqing(Ironmaking Department,Beijing Shougang Co.,Ltd.,Qian'an 064400,Hebei,China)

机构地区：[1]北京首钢股份有限公司炼铁作业部,河北迁安064400

出　　处：《炼铁》2024年第1期45-48,53,共5页Ironmaking

摘　　要：对首钢股份3号高炉高富氧冶炼实践进行了总结。3号高炉富氧率由4.74%逐步提高到6.73%,对理论燃烧温度、炉腹煤气量、煤气流分布、煤气利用率等参数的影响较大。为此,操作上进行了相应调整,通过采取管控原燃料质量、调整装料制度、优化送风制度、调控热制度及改善出铁操作等措施,理论燃烧温度维持在2100℃左右,炉腹煤气量指数控制在60.5~62.5m/min,煤气利用率提高至50.7%左右。3号高炉主要技术经济指标稳步改善,利用系数最高达到2.54V(m^(3)·d),焦比降至320kg/t。The high-rate oxygen-enriched smelting experience of Shougang No.3 BF is summarized.The oxygen enrichment rate of the furnace rises gradually from 4.74%to 6.73%,which greatly influences the parameters such as theoretical combustion temperature,bosh gas flow rate,gas flow distribution,and gas utilization rate.Facing this situation,some actions are carried out accordingly,such as strengthening the quality control of raw material and fuel,adjusting the charging system,optimizing the blasting system,regulating the heat system,and improving the tapping operation.After the above actions,the theoretical combustion temperature keeps at 2100℃app.,the bosh gas flow rate is controlled within 60.5-62.5m/min,and the gas utilization rate escalates to about 50.7%.The main techno-economic indicators of the furnace also improves steadily with the productivity hitting 2.54(m^(3)·d)max.and the coke rate falling to 320 kg/t.

关 键 词：大型高炉 富氧率 理论燃烧温度 炉腹煤气量 操作制度 

分 类 号：TF54[冶金工程—钢铁冶金]