摘要:以相似模型实验理论为基础，针对昆钢125 t复吹转炉，采用1：10水力学模型，研究了氧枪枪位、顶吹气流量和底吹流量对熔池混匀时间和喷溅量的影响。结果表明，使用枪位高度在17cm~21cm；底吹气体流量在0.75 m3/h ~1.25 m3/h；顶吹气流量在24 m3/h ~28 m3/h的范围内，混匀时间较短，且喷溅量较小，很稳定，在一个很小的范围内波动。当底吹气体流量为1.0 m3/h，枪位高度为19cm，顶吹气流量为28 m3/h时熔池的搅拌混匀效果最佳，喷溅量最少。

关键词：顶底复吹转炉；水力学模型；顶底复合吹炼；混匀时间

ABSTRACT:In a similar model experiment theory as a foundation, point to the steel 125 t the combined-blowing hydraulics model converter, use, "QiangQiang bits, top-blown oxygen gas flow and bottom blowing flow to pool the amount of time and blender spillage effect. The results show that using a bit 17cm ~ 21cm; high Bottom blowing gas flow in 0.75 m3 / h ~ 1.25 m3 / h; The gas flow top-blown 24 m3 / h ~ 28 m3 / h, within the scope of the blending in a relatively short time, and spitting quantity is lesser, very stable, in a small range. When the bottom blowing gas flow of 1.0 m3 / h, height is 19cm gun bits for gas flow, top-blown 28 m3 / h molten pool mixing blender when best effect, spitting at least amount.

Keywords: Top-Bottom combined blown converter;Hydraulic model;         Mixed Time;Top and bottom combined blowing