Abstract
A study has been made of cold model experiments and hot model experiments on the desulphurizationof 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 whena lance is immersed more than half of the bath depth. In this case the stirring effect is not affectedby 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 desulphurizationeffects coincided very well, for example, effects of the immersion depth of lance could be applied toeffects of desulphurization of molten pig iron.
3) Injection method, when a lance is immersed more than half of the bath depth, has a high degreeof utilization of calcium carbide and a large effect of desulphurization per weight of molten pig iron.
