摘要:
对比分析了目前喷吹脱硫所存在的问题,借鉴KR脱硫原理,对喷吹脱硫枪旋转喷吹脱硫过程进行了数值模拟研究,通过比较发现,喷吹脱硫枪旋转能有效降低脱硫过程的喷溅以及提高喷吹气体对半钢熔池的搅拌。在理论研究的基础上,攀钢设计并开发出基于旋转喷吹技术的半钢脱硫新工艺,该工艺已分别在攀钢140、230 t半钢脱硫上进行了应用,取得了很好的效果,脱硫剂中镁利用率平均由55.46%提高至68.27%,喷溅减少,铁损、脱硫剂消耗显著降低,脱硫效率有一定提高。
关键词:
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铁水预处理 /
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喷吹 /
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旋转脱硫 /
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模拟 /
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动力学
Abstract:
The existing problems of injection desulfurization had been analyzed.Based on the principle of KR desulfurization,the numerical simulation of rotary injection desulfurization process of injection desulfurization gun had been carried out.Through comparison,It is found out that the rotation of injection desulfurization gun can effectively reduce the splash of desulfurization process and improve the stirring of injection gas to semi-steel molten pool.On the basis of theoretical research,a new semi-steel desulfurization process based on rotary injection technology has been designed and developed in Panzhihua Iron and Steel Co.Ltd.The process has been applied to 140 t and 230 t semi-steel desulfurization convertors at Panzhihua Iron and Steel Co.and good results have been achieved.The average utilization ratio of magnesium in desulfurizer has increased from 55.46% to 68.27%,and the consumptions of splashing,iron loss and desulfurizer were reduced remarkable.The desulfurization efficiency has been improved to a certain extent.
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