METHOD OF A BLAST-FURNACE SMELT Russian patent published in 2005 - IPC

FIELD: metallurgy; blast-furnace production.

SUBSTANCE: the invention is pertaining to the field of metallurgy, in particular, to the blast-furnace production. The method of a blast-furnace smelt includes loading of ore and fuel components realized in a mixed or separate way in a furnace-charging carriage or various furnace-charging carriages in one or several skips within the limits of one or several feeds, an air-blast supply and tapping. At that the ore and fuel components are delivered from the hopper weighers into the furnace-charging skips ensuring the following ratio: P : v_o = K : v_f, where P - a number of the ore components in a hopper weigher, t(tons); K - a number of fuel components in a hopper weigher, t(tons); v_o and_{vf - rate of delivery accordingly of the ore and the fuel (coke) components from the hopper weighers into a skip, t/s (tons/seconds). At that per each 10 % of the materials loaded in a mixed state intensity of the blast boost is increasing by 0.1 - 0.5 %. The purpose of the invention is to increase productivity of a blast furnace and to decrease specific consumption of coke.}

EFFECT: the invention ensures increased productivity of a blast furnace and decreased specific consumption of coke.

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