Penetration of Supersonic Jets Impinging on Bath Surface in BOF Steelmaking

摘要：

　　The cavity induced by the top-blow gas jets impinging on bath surface is one of the most important dynamic parameters and it dominates the rate of slag formation,refining reactions and mixing of the bath during the blowing.The effect of lance height and gas flow rate on penetration behavior was experimentally investigated through a 1/10 scaled-down converter.Furthermore,the mechanism of liquid surface tension influencing on penetration depth was revealed.An improved model of penetration depth was proposed with respect to the liquids properties,energy utilization and lance parameters.An energy utilization index is defined for the quantitative description of energy utilization to the impinging kinetic energy of the jets effectively transformed into the formation of cavity,and the energy utilization index increases with increasing lance height,and a relationship of it with lance height is obtained.

关键词： BOF penetration depth impact diameter theoretical model surface tension

作者: Qiang LI Mingming LI Zongshu ZOU

作者单位: School of Materials and Metallurgy,Northeastern University,Shenyang 110819,Liaoning,China;Key Laboratory of Ecological Utilization of Multi-metallic Mineral of Education Ministry,Northeastern University,Shenyang 110819,Liaoning,China

会议类型: 国际会议

会议名称: the 6th International Congress on the Science and Technology of Steelmaking,ICS2015(第六届国际炼钢科技大会)

会议地点: 北京

会议语种:英文

页码: 187-191

在线出版日期: 2015-05-12（万方平台首次上网日期，不代表论文的发表时间）