PROCESSO PARA PRODUCAO DE FERRO-GUSA EM FUSAO

摘要

A method for manufacturing molten pig iron is disclosed which comprises: forming a packed bed of coke in a vertical furnace having a charging port in an upper portion thereof for charging raw materials and discharging gases, one or more primary tuyeres in its lower portion, and one or more secondary tuyeres in a wall of the furnace at a level above the primary tuyere, the packed bed of coke extending higher than the level of the primary tuyere; forming a packed bed of scrap and iron ore atop the packed bed of coke to a level which extends above the secondary tuyere; and blowing an oxidizing gas through the primary tuyere and the secondary tuyere to melt and reduce the scrap iron and iron ore.