C - Chemistry – Metallurgy – 21 – B
Patent
C - Chemistry, Metallurgy
21
B
60/2, 53/41
C21B 5/00 (2006.01) C21B 13/00 (2006.01) C21B 13/14 (2006.01) F25J 3/04 (2006.01)
Patent
CA 1331517
ABSTRACT OF THE DISCLOSURE: To gain electric energy in addition to producing molten pig iron, from lumpy iron ore and solid fuels, by using a direct reduction zone for the reduction of the iron ore to sponge iron and a meltdown-gasifying zone for the production of molten pig iron, carbon carriers are used in, and oxygen-containing gases are supplied to, the meltdown- gasifying zone. The reduction gas forming is fed into the direct reduction zone. The reduction gas reacted there is supplied as top gas to a power generation plant including a turbine. In order to adapt the power generation to the power consumption by simultaneously avoiding any influence on the metallurgical conditions at the production of pig iron and its further processing, the charge of carbon carriers into the meltdown-gasifying zone is varied as a function of the gas consumption of the power generation plant in a manner that, with a higher gas consumption, the volatile constituents of the charge are increased and the Cfix charge is reduced and, with a lower gas consumption, it is proceeded the other way round, while keeping the amount and composition of the pig iron produced substantially constant.
552572
Bogdandy Ludwig von
Hauk Rolf
Kepplinger Werner
Papst Gero
Stift Kurt
Deutsche Voest-Alpine Industrieanlagenbau G.m.b.h.
Fetherstonhaugh & Co.
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