100t底吹氩钢包插入浸渍管对钢液流场影响的数值模拟  

Numerical Simulation of Effect of 100t Bottom-Blowing Argon Ladle with Immersed Cylinder on Liquid Flow Field

作　　者：吴超[1] 沈明钢[1] 张德慧[1] 周晓东[1] 

机构地区：[1]辽宁科技大学材料与冶金学院,鞍山114051

出　　处：《特殊钢》2015年第2期9-12,共4页Special Steel

摘　　要：以100t单孔底吹氩钢包为原型,应用三维连续性方程、动量N-S方程及湍流κ-ε双方程模拟了底吹氩过程中钢包内的钢液流动状态。利用Mixture多相流模型对单孔吹氩（0-700 L/min）过程进行数值模拟,对比分析插入直径691.05 mm,深650 mmn浸渍管前后钢包内的流动状态和钢液表面的卷渣。结果表明,无浸渍管时,临界卷渣吹气量为102 L/min,插入浸渍管后,临界卷渣吹气量增大到217 L/min。插入浸渍圆筒可以在增加吹氩量的条件下提高钢液搅拌效果,加速钢液混匀。According to the prototype of 100 t ladle with single nozzle bottom-blowing argon,the flow status of liquid in ladle during argon blowing process is simulated by using three dimensional continuity equation,momentum N-S equation and turbulence k-s double equations.The numerical simulation on single nozzle argon blowing（0 -700 L/min） process has been carried out by sing Mixture multiphase flow model and the liquid flow status and the phenomenon of slag entrapment at liquid surface in ladle before and after immersing cylinder with diameter 691.05 mm and immersing depth 650 mm are compared and analyzed.Results show that without immersed cylinder the critical slag entrapment argon blowing rate is102 L/min,while with immerged cylinder the critical slag entrapment argon blowing rate increases to 217 L/min,immerged cylinder may increase liquid stirring effect with increasing argon blowing rate to accelerate liquid mixing.

关 键 词：100t钢包 底吹氩 浸渍管 卷渣 

分 类 号：TF769[冶金工程—钢铁冶金]