METHOD FOR DISCHARGING SLAG AFTER DEPHOSPHORIZATION TREATMENT OF MOLTEN IRON IN CONVERTER

摘要

PROBLEM TO BE SOLVED: To provide a method for efficiently discharging slag generated after dephosphorization treatment of molten iron using a converter.;SOLUTION: For discharging dephosphorized slag left in a converter from the inner part of the converter after the molten iron is subjected to dephosphorization treatment and tapped from the converter, the method for discharging slag comprises: supplying oxygen gas from a top-blown lance; melting the dephosphorized slag; and discharging the molten dephosphorized slag outside the converter by tilting the converter. Further, in this case, it is desirable to supply oxygen gas in a state wherein a part of the molten iron remains in the converter after the dephosphorization treatment.;COPYRIGHT: (C)2005,JPO&NCIPI