摘要
采用数值模拟方法考察了钢包底吹位置对侧底复吹RH装置内流体流动及循环流量的影响.计算结果表明：在钢包底吹条件下,当底吹位置和钢包中心连线与浸渍管中心连线夹角一定时,随着底吹位置至钢包中心距离的增大,循环流量先增大后减小;当底吹位置至钢包中心距离一定时,循环流量随夹角的增大而减小;与现有RH吹氩方式相比,当采用侧底复吹且钢包底吹气量保持在200 L/min时,循环流量可提高25%以上;当关闭上升管侧吹且仅采取钢包底吹时,与现有RH吹氩方式相比,循环流量可提高60%~100%.
The numerical simulation method was employed to investigate the fluid flow and the effect of bottom-blowing location on the circulation flow rate in RH with side-bottom blowing.The numerical results indicated that for RH with bottom blowing,when the included angle is constant between the two lines connecting the bottom-blowing location with ladle center and connecting two snorkels,the circulation flow rate increases firstly and then decreases with the increasing distance between the bottom-blowing location and ladle center.When the distance between the bottom-blowing location and ladle center is constant,the circulation flow rate decreases with the increasing included angle.When the bottom-blowing gas flow rate is equal to 200 L/min,the circulation flow rate in RH with side-bottom blowing is up more than 25 percent.When the side-blowing gas flow rate is equal to zero,the circulation flow rate is 60%～100% greater than that in traditional RH.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2011年第8期1119-1123,共5页
Journal of Northeastern University(Natural Science)
基金
国家高技术研究发展计划项目(2009AA03Z530)
国家自然科学基金和上海宝钢集团公司联合资助项目(50834010)
高等学校学科创新引智计划项目(B07015)
教育部留学回国人员科研启动基金资助项目(20071108-2)
中央高校基本科研业务费专项资金资助项目(N100409007)
关键词
RH精炼装置
数值模拟
循环流量
侧底复吹
底吹位置
RH degasser
numerical simulation
circulation flow rate
side-bottom blowing
bottom-blowing location
