摘要
以150吨桶型钢包为研究对象,建立水力模型,以电导法测定钢包内的混匀时间,讨论吹气位置、气体流量、径深比、气液密度比等对钢液混匀时间的影响,同时用数值模拟的方法对流场进行计算.结果表明,位置距炉底圆心2R/3处单孔吹气混匀时间最短,为最佳吹气位置;双孔吹气距中心R/2+R/2处,且沿直径对称分布时的混匀时间次之,结合钢包炉的电气特征分析,得出LF各操作阶段合理的吹氩流量.
A hydraulic model for 150 t vertical ladle has been established,and the mixing time measured by conductivity method to analyze the mixing time caused by the positions of the argon blowing,the flux of argon,the scale between the height and the diameter of melting field,and the scale between the density of argon and steel.The flow field inside the ladle has been numerically simulated at the same time.The results showed that the argon flowing at 2R/3 to the center under the ladle is better than that at(R/2+R/2...
出处
《过程工程学报》
CAS
CSCD
北大核心
2008年第S1期27-30,共4页
The Chinese Journal of Process Engineering
关键词
钢包精炼
水力学模型
混匀时间
数值模拟
ladle refining
hydraulic model
mixing time
numerical simulation
