Method and a melt-down gasifier for producing molten pig...

Details Method and a melt-down gasifier for producing molten pig... Method and a melt-down gasifier for producing molten pig...

C - Chemistry, Metallurgy

21

B

39/62, 53/74, 48

C21B 13/00 (2006.01) C21B 7/16 (2006.01)

Patent

CA 1214333

ABSTRACT OF THE DISCLOSURE: There is disclosed a method and a melt-down gasifier for producing molten pig iron or steel pre-products and re- duction 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 blow- ing 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 re- duction gases produced, and openings for tapping the metal melt and the slag. Pipes or nozzles enter into the melt- down gasifier above the slag level at at least two dif- ferent heights.

443497

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