摘要
依据相似原理建立钢包的物理模拟体系,采用水模型对110tLF钢包底吹氩过程进行研究,分析了吹气量、吹氩位置、钢包覆盖渣和钢包液面高度对钢包混匀的影响,并进行了相应的试验验证。研究结果表明:水模型试验结果和大工业应用具有较好的一致性,验证了水模型的可行性;钢包液面高度越高,混匀时间越长;吹气量越大,混匀时间越短;相同的液面高度和吹气量下,底吹氩最佳位置为0.33r附近;钢包覆盖渣较黏时会使钢液流动显著减慢,增大吹气量容易产生卷渣现象。
The physical simulation systems for 110 t ladle furnace were established on the basis of similarity theory. Experiments in water model were carried out to study bottom blowing process of argon gas for stainless steel refining in a 110 t ladle, and the effects of flow rate, argon blowing position, and ladle covering agent and the liquid level on the mixing time were analyzed with corresponding experimental verification. It is concluded that the water modeling results are in good agreement with those obtained by industrial applications, verifying the reliability of the water model. The mixing time increases with an increase in liquid level, but decreases with the flow rate increasing. At the same liquid level and flow rate, the best position of argon blowing is nearby 0.33r. When the ladle slag is sticky, the molten steel flow will slow down significantly. Slag entrapment will occur with the flow rate increasing.
出处
《中国冶金》
CAS
2016年第2期50-54,共5页
China Metallurgy
关键词
钢包
底吹氩
混匀时间
水模拟
卷渣
ladle
bottom argon blowing
mixing times water simulation
slag entrapment
