摘要
研究了真空度、提升气体量和吹气孔位置对RH钢水混匀时间的影响,模拟了钢包流场情况。试验结果表明:提高RH系统真空度、增加RH提升气体量或增大气体的吹入深度均可减小混匀时间;唐钢RH精炼过程中无死区存在,在相应的混匀时间内可以实现整包钢水成分和温度的均匀;合理控制真空度、提升气体量和浸渍管插入深度有利于稳定出站钢水碳含量,提高Al2O3夹杂物的去除率。
It is researched the influence on RH molten steel mixing time of vacuum degree,lifting gas volume and location of air-blowing hole,simulated the flow field of ladle.It is showed from test that to increase vacuum degree of RH system,lifting gas volume and blowing-into depth of air all can reduce the mixing time;there is no dead zone in RH refining in Tang Steel and the composition and temperature of molten steel in ladle can be fully even in corresponding mixing time;it is favorable to reasonably control vacuum degree,lifting gas volume and immersion depth of submerged tube for stabilizing carbon content of exiting molten steel and raising eliminating rate of Al2O3 inclusion.
出处
《河北冶金》
2012年第9期16-19,75,共5页
Hebei Metallurgy
关键词
RH
混匀时间
流场
模拟
RH
mixing time
flow field
simulation
