MOLTEN IRON MANUFACTURING APPARATUS AND MOLTEN IRON MANUFACTURING METHOD

摘要

The molten iron manufacturing apparatus according to one aspect of the present invention comprises: an iron ore reducing furnace for charging iron ore and introducing a reducing gas so as to produce reduced iron; a melting/gasifying furnace for filling coal and charging the reduced iron which is discharged, after being reduced, from the iron ore reducing furnace so as to produce molten iron and a reducing gas which is to be supplied to the iron ore reducing furnace; a gas refining filter-type reducing furnace for charging sintered ore and introducing a process gas which is discharged, after the reduction of the iron ore, from the iron ore reducing furnace so as to reduce the sintered ore; a fine dust removal apparatus for removing dust from the reduced sintered ore which is discharged, after being reduced, from the gas refining filter-type reducing furnace; and an oxidizing combustion furnace for charging the reduced sintered ore having the dust removed therefrom and combusting same with air so as to oxidize the reduced sintered ore.