Iron bath-type melting furnace

摘要

Disclosed is an iron bath-type melting furnace characterized by comprising a furnace body and a plurality of tap holes provided at different positions of the furnace body in the direction of the height thereof so as to extend through the furnace body, and in that an iron source as a raw material together with a carbon material and a slag-making material is charged into the furnace and further an oxygen-containing gas is blown into the furnace to melt the iron source as the raw material by combustion heat generated by combustion of the carbon material and/or carbon contained in the molten iron and to produce molten iron and molten slag are produced, and the plurality of the tap holes is used while switching from the uppermost-stage tap hole toward downward tap holes to tap the iron slag being conducted, whereby molten iron is produced by intermittently taking out the molten iron and the molten slag to the outside of the furnace in such a state that the furnace body stands upright.