125t顶底复吹转炉水力学模拟实验研究.doc

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  • 更新时间:2016-06-10
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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

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