METHOD FOR SEPARATING MOLTEN PIG IRON SLAG IN TAPPING TROUGH FOR BLAST FURNACE

摘要

PROBLEM TO BE SOLVED: To provide an easier method than conventional technologies, which does not need to change a structure of a tapping trough for a blast furnace because of the change of a condition such as a flowing speed in tapping and can improve the separability of molten pig iron slag, in an inexpensive execution cost.;SOLUTION: In a method of separating molten pig iron from the slag by separating the molten pig iron slag discharged from a tap hole of the blast furnace into the molten pig iron and the slag through a skimmer 3 installed downstream of the tapping trough 1 with the use of difference in specific gravity, and discharging the slag to a slag trough 4 while discharging the molten pig iron to a molten pig iron trough 5, this separation method includes arranging a damper 6 for decreasing the flowing speed in an inlet of an upstream side of a slag trough branch in an upstream side of the skimmer 3 of the tapping trough 1.;COPYRIGHT: (C)2008,JPO&INPIT