PROCESSO E GASEIFICADOR DE FUSAO PARA A PRODUCAO DE FERRO GUSA LIQUEFEITO OU DE PRODUTOS INICIAIS DE ACO

摘要

There is disclosed a method and a melt-down gasifier for producing molten pig iron or steel pre-products and reduction gas. A first fluidized-bed zone is formed by coke particles, with a heavy motion of the particles, above a first blow-in plane by the addition of coal and by blowing in oxygen-containing gas. Iron sponge particles and/or pre-reduced iron ore particles with a substantial portion of particle sizes of more than 3 mm are added to the first fluidized-bed zone from above. A melt-down gasifier for carrying out the method is formed by a refractorily lined vessel having openings for the addition of coal and ferrous material, openings for the emergence of the reduction gases produced, and openings for tapping the metal melt and the slag. Pipes or nozzles enter into the meltdown gasifier above the slag level at at least two different heights.