Patent ID: 6224650
Filing Date: 2001-05-01
Classification: C21B,Y02P

Abstract:
An apparatus for manufacturing molten iron including a shaft furnace for receiving an iron ore and additives, and a melter gasifier for receiving a reduced iron ore, calcined additives and an ordinary coal, comprising:a calcination furnace for receiving a hot reducing gas through a reducing gas line from a cyclone, for receiving one of said additives, and for calcining said additive by means of the hot reducing gas to cool the hot reducing gas to an optimum reducing temperature suitable for said shaft furnace, said calcination furnace being connected through a reducing gas line to said shaft furnace; anda plurality of additive feeding lines connected between said calcination furnace, said shaft furnace and said melter gasifier, for supplying the calcined additive to said shaft furnace and to said melter gasifier, after the additive has been calcined by the hot reducing gas in said calcination furnace.