二次燃烧氧枪在120 t复吹转炉的应用实践  

Application Practice of Secondary Combustion Oxygen Lance in 120t Combined Blowing Converter

作　　者：王世峰 宁生龙 于朋 程明刚 席小波 朱晓雷 郑淑国[4] WANG Shifeng;NING Shenglong;YU Peng;CHENG Minggang;XI Xiaobo;ZHU Xiaolei;ZHENG Shuguo(Chaoyang Iron&Steel Co.,Ltd.of Ansteel Group Cor.,Ltd.,Chaoyang 122000,Liaoning,China;State Key Laboratory of Metal Material for Marine Equipment and Application,Anshan 114009,Liaoning,China;Ansteel Iron&Steel Research Institutes,Anshan 114009,Liaoning,China;Northeastern University,Shenyang 110081,Liaoning,China)

机构地区：[1]鞍钢集团朝阳钢铁有限公司,辽宁朝阳122000 [2]海洋装备用金属材料及其应用国家重点实验室,辽宁鞍山114009 [3]鞍钢集团钢铁研究院,辽宁鞍山114009 [4]东北大学,辽宁沈阳110081

出　　处：《鞍钢技术》2023年第3期40-43,共4页Angang Technology

基　　金：中央引导地方科技发展资金:2023JH6/100100046。

摘　　要：结合120 t复吹转炉生产实际,设计了二次燃烧氧枪喷头参数,优化了转炉冶炼工艺制度。实践表明,与普通氧枪相比,应用二次燃烧氧枪吹炼可以缩短供氧时间约93 s,供氧效率提升10.6%,熔池钢水平均温度提升约18.527℃,废钢比提高1.3%,脱磷率提高1.5%,且对煤气回收几乎没有影响。Based on the actual production of 120 t combined blowing converter,the parameters for secondary combustion oxygen lance nozzles were designed and the technological system for smelting by converter was optimized.The practice showed that comparing to ordinary oxygen lances,using secondary combustion oxygen lances could reduce the time for oxygen supply by about 93 s,oxygen supply efficiency could be increased by 10.6%,the average temperature of molten steel in molten pool could be improved by about 18.527 C,the ratio of scrap could be increased by 1.3%,the dephosphorization rate could be increased by 1.5%and there was little impact on gas recovery.

关 键 词：二次燃烧氧枪 复吹转炉 氧枪喷头 废钢比 

分 类 号：TF741[冶金工程—钢铁冶金]