MOLTEN IRON REFINING METHOD AND DEVICE THEREOF

摘要

The present invention relates to a molten iron refining device and a method therefor, and the molten iron refining method comprises: a step for preparing molten iron; a step for dipping an impeller into the molten iron; a step for supplying a liquid dephosphorous agent on top of the molten iron; and a step for stirring the molten iron by rotating the impeller, wherein a solid dephosphorous agent in a powder state is supplied through the lower portion of the impeller in the process of stirring the molten iron, thereby improving the stirring efficiency of the molten iron and efficiently controlling the phosphorous concentration in the molten iron.