Abstract: The mixing time of steel in a 130t ladle with single nozzle blowing, double nozzle blowing in right angle location and symmetry location with different gas rate was measured by established water model using conductivity method. Results showed that the mixing time with double nozzle blowing was shorter than that with single nozzle blowing and stirring effect was better than that of single nozzle blowing. As nozzle location distance from center of ladle bottom for single nozzle blowing was 0.55R(ladle bottom radius), the mixing time was shortest; and as distance between double nozzle for double nozzle blowing increased from 0.40R to 0.70R, the mixing time obviously decreased.

摘要： 通过建立的130 t钢包水力学模型,用电导法测定了单喷嘴、双喷嘴垂直分布和对称分布时不同供气量下钢水混匀时间。结果表明,双喷嘴喷吹的混匀时间较单喷嘴的混匀时间短,搅拌效果优于单喷嘴。单喷嘴底吹氩,喷嘴距钢包底部中心0.55R(钢包底半径)时混匀时间最短;双喷嘴间距由0.40R增至0.70R时混匀时间明显减少。

关键词: 钢包, 底吹氩搅拌, 水模型, 混匀时间