APPARATUS FOR MANUFACTURING MOLTEN IRON BY INJECTING FINE COALS INTO A MELTER-GASIFIER AND THE METHOD USING THE SAME

摘要

The present invention relates to an apparatus for manufacturing molten ironby injecting fine carbonaceous materials into a melter-gasifier and a methodformanufacturing molten iron using the same. The method for manufacturing molteniron according to the present invention includes steps of reducing mixturescontaining iron ores in a reduction reactor and converting the mixturescontainingiron ores into reduced materials, preparing lumped carbonaceous materialscontaining volatile matters as a heating source for melting the reducedmaterials,charging the lumped carbonaceous materials into a dome-shaped upper portion ofa melter-gasifier and forming a coal packed bed, preparing fine carbonaceousmaterials containing volatile matters as a heating source for melting thereducedmaterials, injecting oxygen and the fine carbonaceous materials into the coalpacked bed through a tuyere installed in the melter-gasifier, charging thereducedmaterials into the melter-gasifier connected to the reduction reactor andmanufacturing molten iron, and supplying reducing gas in the melter-gasifiermadefrom volatile matters contained both in the lumped carbonaceous materials andthefine carbonaceous materials to the reduction reactor.