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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。
In the RH vacuum refining, the slag is in a weak mixing zone in the big bag pool, and the slag steel has a weak reaction, which greatly affects the removal of harmful elements such as sulfur or adsorbed inclusions in the molten steel by the slag steel reaction, and reduces the refining efficiency . In order to improve the refining efficiency of sulfur removal and other refining, the use of water simulation of molten steel, oil simulation residue, benzoic acid simulated slag - steel transfer material to study the vacuum residue RH device add residue slag, inflatable volume and immersion tube depth of slag Mass transfer effects. The test results show that the capacity mass transfer coefficient between slag and steel increases 60 to 130 times with the method of adding slag in the vacuum chamber, greatly improving the mass transfer rate of the slag steel, and strengthening the mass transfer of the slag steel through the addition of slag in the vacuum chamber Improve sulfur removal and other refining operations provide a theoretical basis.