RH真空室加渣对熔池内渣钢间传质影响的水力学模拟  

Water-oil model for slag injection from vacuum vessel in RH reactor

作　　者：薛利强[1] 何平[1] 张贵[1] 贺庆[1] 

机构地区：[1]钢铁研究总院工艺所,北京100081

出　　处：《钢铁研究》2012年第3期15-18,共4页Research on Iron and Steel

摘　　要：在RH真空精炼中,覆盖渣处于大包熔池内的弱搅拌区,渣钢反应很弱,对依靠渣钢反应去除硫等有害元素或吸附钢水中夹杂物有很大的影响,降低了精炼效率。为了提高除硫等精炼效率,利用水模拟钢水,机油模拟渣,苯甲酸模拟渣-钢间传输物质来研究RH装置真空室内加渣时的加渣量、吹气量和浸渍管插入深度对渣钢传质的影响。试验结果表明,采用真空室内加渣方法渣钢之间的容量传质系数提高了60～130倍,大大提高了渣钢传质速度,为实际生产中通过真空室内加渣加强渣钢传质以提高除硫等精炼操作提供了理论依据。As the slag is located in the dead zone of RH,the mass transfer between slag and metal is very weak.To enhance the refining efficiency between slag and metal,a cold model in which water and oil are used to simulate metal and slag respectively and benzoic acid is employed to simulate the solute has been developed.This model is adopted to study the effect of operational parameters（V,Q,H） on volumetric transfer coefficient between slag and metal.The results indicate that combined with the oil injected from the ladle surface,the volumetric transfer coefficient has been increased 60-130 times.It means that when the slag injected from vacuum,the speed of mass transfer can be improved obviously.

关 键 词：RH精炼 真空室加渣 钢渣间容量传质系数 水模型实验 

分 类 号：TF769.4[冶金工程—钢铁冶金]