Device for manufacturing molten iron

A device for manufacturing a molten iron comprising:

• a multi-stage fluidized reduction furnace for reducing a powdered iron ore including hematite and limonite;
• a melting gas furnace connected to the fluidized reduction furnace through an ore conduit and a gas conduit;
• a fluidized bed oxidation furnace for oxidizing magnetite to be converted into hematite through steam provided from the fluidized reduction furnace;
• a hydrogen processing unit for processing hydrogen generated by the oxidation reaction of magnetite in the fluidized bed oxidation furnace;
• a heat recovery device for recovering heat of the reduced gas discharged from the fluidized reduction furnace and generating steam;
• a steam supply line connecting the fluidized bed oxidation furnace and the heat recovery device and supplying the steam generated in the heat recovery device to the fluidized bed oxidation furnace;
• and
• a hydrogen rich gas exhaust line for discharging a hydrogen rich gas generated from the fluidized bed oxidation furnace,
• wherein the hydrogen processing unit includes:
• a scrubber that is connected to the hydrogen rich gas exhaust line and removes steam and magnetite dust included in the hydrogen rich gas,
• a compressor connected to the scrubber and boosting the hydrogen rich gas discharged from the scrubber, and
• a first gas circulation line that connects the compressor and the melting gas furnace and supplies the hydrogen rich gas to the melting gas furnace.