Abstract:In order to further improve the hotmetal desulfurization efficiency by the KR mechanical stirring,the escape of desulfurizer in the process of hotmetal desulfurization by the KR mechanical stirring and the slag block on the upper blade of the agitator were analyzed. The results show that the particle size and composition of desulfurizer, the feeding mode, and slag from hot metal are the main reasons for the additive escape and the slag agglomeration in the agitator. By controlling the proportion of desulfurizer particle size <0.1 mm to less than 10%, controlling the stirring speed during feeding at ≤40 r/min, optimizing the size of fluorite to avoid high local CaF2content in desulfurizer and removing slag from hotmetal before desulphurization, which can effectively improve the desulfurizer escape and the slag agglomeration in the agitator, thereby improving the utilization rate of desulfurizer and desulfurization rate of hot metal.
印传磊, 杨丽梅, 田春阳, 马建超. KR铁水脱硫剂逸散及搅拌器黏渣分析[J]. 钢铁, 2020, 55(1): 34-37.
YIN Chuan-lei, YANG Li-mei, TIAN Chun-yang, MA Jian-chao. Analysis of KR hot metal desulfurizer escaped and slag agglomeration in agitator. Iron and Steel, 2020, 55(1): 34-37.
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