含钒钛铁水KR脱硫工艺优化

Technology Process Optimization of KR Desulfurization for Hot Metal with Vanadium and Titanium

通过对KR脱硫的脱硫剂进行调渣处理,在基本不改变KR脱硫工艺参数的条件下,采用调渣脱硫剂进行KR脱硫,脱硫效率明显提高。脱硫率平均为84.2%,比大生产对比罐次稳定提高3.2个百分点;脱硫剂单耗平均为12.3kg/t铁,比对比罐次降低1.4kg/t铁;脱硫渣渣态较好,脱硫渣中TFe含量为10.4%,比大生产降低3.25个百分点;铁水脱硫前后碳、机含量相当。调渣脱硫剂应用于KR脱硫效果明显,经济效益显著。

Through the adjustment of desulfurizer in KR desulfurization process, the efficiency of desulfurization is increased obviously on the condition of maintaining the same KR desulfurization process. While the desulfurization rate is as high as 84.2% which is 3.2% higher than that before optimization. Consumption of desulfurizer is 12.3 kg/t hot metal on average which is 1.4 kg/t hot metal less than that before optimization. In addition, TFe content in desulfurizing slag is 10.4%, which is reduce by 3.25% of the value before optimization. There is nearly the same content of carbon and vanadium in hot metal. The optimized desulfurizer can be used in KR desulfurization process, and wonderful results have been gotten. Therefore, it has a good prospect of application.