钢包非金属夹杂物去除过程数模分析  

Mathematical Analysis for Non-metal Inclusions Removal in Ladle

作　　者：张东力[1] 润建刚 穆艳春[1] 陈以豹 

机构地区：[1]济钢集团国际工程技术有限公司,山东济南250101

出　　处：《山东冶金》2008年第S1期50-52,共3页Shandong Metallurgy

摘　　要：将钢包底吹氩气去除钢液中非金属夹杂物的过程解析为两个步骤,夹杂物由钢液内部向表层的移动以及夹杂物由钢液表层向渣层的传输,并进行了数模分析,由此讨论了影响非金属夹杂物去除速率的因素。分散细小的气体气泡有利于夹杂物的去除,尺寸较大的非金属夹杂更有利于排除,适当增加底吹气体量有利于非金属夹杂物的有效去除,但是底吹搅拌强度过大会造成卷渣现象的发生,造成钢液的污染,至少要达到15min以上才能保证80%以上的非金属夹杂物得以去除。Mathematical model for non-metal inclusions removal in ladle by Ar bottom blowing was analyzed in this paper.And influence factors of non-metal inclusions removal velocity were discussed.Inclusions removal benefit for fine bubbles,large dimension inclusions and increasing amount for blowing gas.But too large amount for gas will cause slag wrapping.It needs at least 15 min for 80%non-metal inclusions to removal.

关 键 词：非金属夹杂 底吹 数模分析 

分 类 号：TF769.9[冶金工程—钢铁冶金]