260t转炉用双角度六孔氧枪的射流特性研究  

Jet Characteristics of Double-Angle Six Hole Oxygen Lance for 260 t BOF

作　　者：孙梦丽 刘广强[2] 李艺璇 韩鹏[1] Sun Mengli;Liu Guangqiang;Li Yixuan;Han Peng(School of materials and metallurgy,University of science and technology Liaoning,Anshan 114051;School of civil Engineering of Liaoning University of science and technology,Anshan 114051)

机构地区：[1]辽宁科技大学材料与冶金学院,鞍山114051 [2]辽宁科技大学土木工程学院,鞍山114051

出　　处：《特殊钢》2022年第6期73-78,共6页Special Steel

基　　金：“十四五”国家重点研发计划项目(2021YFB3702000);大学生创新创业训练项目-中型转炉六孔氧枪喷头射流特性研究。

摘　　要：通过CFD数值模拟研究了260 t转炉用双角度氧枪的倾角变化对射流偏移程度和融合距离的影响,比较了双角度六孔氧枪在喷孔倾角12°-15°~14°-17°下的射流特性,明确了双角度氧枪的射流偏移系数A。研究结果表明:对于双角度六孔氧枪的两股不同射流,倾角越大,射流偏移程度和融合距离越大;与射流偏移程度相比,喷孔倾角对融合距离的影响占主导地位;一组倾角相同时,另外一组倾角越大,融合距离越大,偏移程度越小,聚并现象发生得越晚,射流偏移系数A的变化范围在(3.38~4.12)×10^(-3)。The influence of the inclination change of double-angle oxygen lance for 260 t BOF on the jet offset degree and fusion distance is studied through CFD numerical simulation.The jet characteristics of the double-angle six hole oxygen lance with 12°-15°to 14°-17°nozzle inclination are compared,and the jet offset coefficient A of the double-angle oxygen lance is defined.The results show that for two jets with different inclination angles of the double-angle six hole oxygen lance,the greater the inclination angle of the jet,the larger the offset degree and fusion distance of the jet.Compared with the jet offset degree,the influence of jet hole inclination on the fusion distance is dominant.When one group has the same inclination angle,the larger the inclination angle of the other group,the greater the fusion distance,the smaller the migration degree,and the later the coalescence phenomenon occurs.The variation range of jet offset coefficient A is(3.38~4.12)×10^(-3).

关 键 词：260 t转炉 双角度氧枪 融合距离 径向距离 射流偏移系数 

分 类 号：TF341.1[冶金工程—冶金机械及自动化]