| 摘要 |
The present invention relates to a method to refine a molten iron comprising: a step of completing a discharge of molten steel produced in a prior step; a step of removing some slag generated in the prior step by rotating a revolving furnace; a step of inserting the molten iron to be utilized for this step into a revolving furnace; a step of blowing the molten iron; and a step of removing slag due to the blowing step. The step of blowing the molten iron comprises a first blowing step, a second blowing step, and a third blowing step; thereby improving a refining efficiency of the molten iron by easily controlling the impurities contained in the molten iron. |
