| 摘要 |
PURPOSE:To shorten the treatment time, to prevent a temp. loss and to reduce a load on the operation of a converter by bringing dropping molten iron into contact with a flux for refining in the 1st vessel while discharging molten iron into the vessel, and successively discharging the pretreated molten iron into the 2nd vessel. CONSTITUTION:While discharging molten iron 3 from a vessel 1 such as a torpedo car into the 1st vessel 2, a flow 3' of the dropping molten iron is brought into contact with a flux 4 for refining, and the molten iron is pretreated in the vessel 2. The pretreated molten iron is successively discharged into the 2nd vessel 5. At this time, a weir 6 is placed in the vessel 2 to prevent slag from entering the molten iron to be discharged. Furthermore a lower weir 6' may be placed as necessary. |
