摘要
采用动力学分析和真空感应炉实验的方法对RH深脱硫工艺进行了研究。结果表明：RH深脱硫主要受钢液和炉渣的初始硫含量、表观传质系数和钢-渣质量比的影响;当钢中的初始硫含量约为0.01%时,终点[S]含量可以降至0.003%以下,平均脱硫率为81.2%;模型预测值与实际检测值误差在±2×10^-6以内的比例为82.9%,模型预测值与实验值较为接近;实验室RH脱硫的限制性环节为硫在钢水中的传质,渣量控制在5%～8%时,增加钢-渣界面的反应面积与硫的传质速度可以提高脱硫效率,脱硫效果良好。
The research is carried on RH deep desulfurization process by means of kinetics analysis and vacuum induction furnace experiment. The results show that RH deep desulfurization process is mainly affected by the initial sulfur content,apparent mass transfer coefficient and slag ratio. When the initial sulfur content of the steel is approx.0. 01%,the final [S]content can be reduced to 0. 003% or less with an average desulfurization rate of 81. 2%. The percentage of the deviation within ± 2 × 10^-6 between model prediction and as measured values amount to 82. 92%,which shows that the model prediction values are close to the as-measured values in the experiment. Since the restriction factor of RH desulfurization in laboratory is the mass transfer of sulfur in molten steel,desulfurization rate can be improved by increasing the reaction area of the interface between steel and slag,which receives a good desulfurization result when the amount of slag is controlled to a value between 5% and 8%.
出处
《宽厚板》
2015年第2期5-10,共6页
Wide and Heavy Plate
作者简介
胡承龙，男，安徽工业大学冶金工程学院2012年级在读硕士研究生。
