上吹 Injection 法による溶銑の脱硫

概要

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A study has been made of cold model experiments and hot model experiments on the desulphurization of molten pig iron by means of injecting calcium carbide. The results reported here are summarized as follows : 1) By the cold model experiments, effects of stirring solution in a ladle model is significant when a lance is immersed more than half of the bath depth. In this case the stirring effect is not affected by the immersion position of the lance in a ladle model, either center or wall-side. 2) A hot model experiments based on the cold one indicated that both results for desulphurization effects coincided very well, for example, effects of the immersion depth of lance could be applied to effects of desulphurization of molten pig iron. 3) Injection method, when a lance is immersed more than half of the bath depth, has a high degree of utilization of calcium carbide and a large effect of desulphurization per weight of molten pig iron.
社団法人日本鉄鋼協会の論文
1970-11-01