介绍了单喷颗粒镁、复合喷吹、KR法脱硫工艺在马钢铁水预处理中的应用实践,对三种脱硫工艺在脱硫率、回硫、温降、扒渣铁损、耗时、成本和对转炉冶炼影响及原材料设备要求进行比较,分析了各自优缺点,并对降低脱硫成本和不同条件下钢厂采用适宜的脱硫工艺提出建议。 This paper introduces the application of single spraying granule magnesium, compound injection and KR desulphurization process in the pretreatment of Ma’anshan Iron and steel. The desulphurization rate, back sulfur, temperature drop, iron loss, time consumption and cost And the impact of the converter smelting and raw materials and equipment requirements were compared, analyzed their advantages and disadvantages, and to reduce the cost of desulfurization and steel under different conditions, the appropriate desulfurization process to make recommendations.