FIELD: metallurgy.
SUBSTANCE: invention provides high-speed gas treatment which makes it possible to increase the rate of iron ore reduction and increase gas treatment efficiency of a single effective cross-section of the boiling layer. The coefficient of iron ore reduction is increased due to oxidizing processes. By means of parallel lines through which the reducing coke gas passes, the volume of gas passing through each individual boiling layer is reduced.
EFFECT: invention enables highly efficient reduction of powdered iron ore in the boiling layer at near atmospheric pressure.
8 cl, 1 dwg
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