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铁水炉外脱硫是提高钢铁质量的重要环节之一.目前,广泛采用的铁水炉外脱硫主要方法是喷吹法和KR搅拌法.KR搅拌法因具有脱硫剂单耗低、脱硫效果稳定和良好的搅拌动力学条件而被广泛采用.示踪实验是研究水模型中混合时间的基本方法,以聚氯乙烯颗粒为示踪剂,通过不同的搅拌桨浸入深度对示踪剂分散情况的影响,并考虑液面的稳定,确定最优浸入深度为12~15cm.通过研究不同的搅拌模式对示踪剂分散情况的影响,并考虑单向搅拌时搅拌桨和水的速度达到稳定时所需时间,确定最优搅拌模式为正3s停0.5s.研究结果对氧化钙碳化钙等脱硫剂的KR搅拌脱硫工艺具有一定指导意义.
The desulfurization outside the hot metal furnace is one of the most important steps to improve the quality of the steel.At present, the main methods of external desulfurization outside the hot metal ladle are blowing method and KR agitation method.KR agitation method has the advantages of low unit consumption of desulfurizer, stable and good desulfurization effect Of the mixing kinetics conditions are widely used.Tracer experiment is to study the mixing time in the water model of the basic methods to polyvinyl chloride particles as tracers, through the different depth of immersion impeller dispersion of tracer, And consider the stability of the liquid surface to determine the optimal immersion depth of 12 ~ 15cm.By studying the impact of different stirring mode on the dispersion of the tracer, and considering the one-way stirring speed of the paddle and water to stabilize the time required , To determine the optimal stirring mode is 3s stop 0.5s.The results of the study on calcium oxide calcium carbide desulfurizer KR stirring desulfurization process has a certain significance.