Simulation Study on Impact Effects of Molten Bath of 80t Converter

摘要：

　　Based on the similarity theory,the influence of the lance height,the gas flowrate and the holes of oxygen lance on the impact effects and mixing behavior in the molten bath were investigated by hydrodynamics experiment using 1:6 water model for 80t basic oxygen furnace.The results show that the impact diameter,the penetration depth and the cavity shape index all increase with increasing gas flowrate.The optimal mixing time of the bath is 38 s by controlling the oxygen lance height at 138.55 mm.Under the same condition,the mixing effect of the 4-hole nozzle is better than that of the 5-hole nozzle.In addition,the quantitative relation between the dimensionless penetration depth and Fr is deducted.

关键词： similarity theory impact effect cavity shape index mixing time

作者: LI Nan CAO Lingling LIU Qing LIN Wenhui

作者单位: State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,Beijing 100083,China

会议类型: 国际会议

会议名称: STEELSIM2017(第七届冶金过程及钢铁材料模拟及仿真国际会议)

会议地点: 青岛

会议语种:英文

页码: 153-156

在线出版日期: 2017-08-16（万方平台首次上网日期，不代表论文的发表时间）