多角度耦合下120t转炉用旋流氧枪的射流行为研究  

Jet Flow Behavior of Cyclone Oxygen Lance of 120 t Converter with Multi-angle Coupling

作　　者：马浩然 刘广强[2] 王玺 刘坤 杨瑀 MA Hao-ran;LIU Guang-qiang;WANG Xi;LIU Kun;YANG Yu(Faculty of Materials and Metallurgy,University of Science and Technology Liaoning,Anshan,Liaoning 114051,China;Faculty of Civil Engineering,University of Science and Technology Liaoning,Anshan,Liaoning 114051,China)

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

出　　处：《云南冶金》2024年第1期70-79,共10页Yunnan Metallurgy

基　　金：十四五国家重点研发计划项目(2021YFB3702000);辽宁省教育厅面上项目(JYTMS20230932)。

摘　　要：针对多角度耦合影响下的旋流氧枪复杂射流行为仍然不明确的问题,采用数值模拟的方法对120 t转炉用五孔旋流氧枪进行射流特性研究,结果表明:旋流角对射流超音速区长度的影响大于倾斜角;倾斜角越大,氧气流股射流速度衰减越快;旋流角和倾斜角的增加都会使射流湍动能流率变大;有效冲击面积随倾斜角的增大而增大,并在倾斜角14°,旋流角10°时达到峰值。基于研究结果建立了120 t转炉用旋流氧枪有效冲击面积与倾斜角和旋流角的归一化数学模型。The cyclone oxygen lance with multi-angle coupling has complex,unclear jet flow behavior,so it studied the jet flow features of a five-hole cyclone oxygen lance for a 120 t converter by numerical modeling,results show that rotational flow angle has more influence than inclination angle on the length of the supersonic jet zone;the larger the inclination angle,the faster the oxygen stream jet velocity attenuation;the increasing of rotational flow angle and inclination angle can increase the turbulent kinetic energy rate of jet flow,the effective impact area can be increased along with the increasing inclination angle,and the area can reach to the peak value when the inclination angle is 14°,the inclination angle is 10°.According to the research results,it established a normalized mathematical model with the effective impact area of cyclone oxygen lance for 120 t converter,inclination angle and rotational flow angle.

关 键 词：旋流氧枪 数值模拟 冲击特性 搅拌强度 

分 类 号：TF711[冶金工程—钢铁冶金]