Patent ID: 8119059

Claim:
An apparatus for manufacturing molten iron, the apparatus comprising: at least one fluidized-bed reduction reactor that converts iron ore into reduced materials by reducing and plasticizing the iron ore; a melter-gasifier into which the reduced materials are charged and oxygen is injected such that the melter-gasifier manufactures molten iron; and a reducing gas supply line that supplies a reducing gas discharged from the melter-gasifier into the fluidized-bed reduction reactor via a distribution plate in the fluidized-bed reduction reactor, wherein the fluidized-bed reduction reactor comprises a gas injector that injects a gas into the fluidized-bed reduction reactor to remove stagnating layers, wherein the gas injector comprises: a plurality of first gas injectors that are arranged above the distribution plate to remove the stagnating layers formed at a lower portion of the fluidized-bed reduction reactor, a plurality of second gas injectors that are arranged above the first gas injector and below a powder ore charging passage to allow the powder ore to be smoothly charged, and a plurality of third gas injectors that are arranged above the second gas injector and below a powder ore discharging passage and that distribute the powder ore.