BLOWING-IN OF BLAST FURNACE Russian patent published in 1997 - IPC

Abstract RU 2089616 C1

FIELD: ferrous metallurgy, particular, blast-furnace process; applicable in speeding up of bringing of blast furnace to working intensity of heat. SUBSTANCE: blast furnace is charged with blowing-in burden to fill 40-60% of blast-furnace volume. Blast furnace is additionally charged after reaching working temperature of tap gas to the working level of burden. In this case, blowing rate is increased from 1.2 to 2 cu.m per minute per cubic meter of furnace volume. Blowing-in period is reduced by forced blowing rate due to lower resistance of burden column. EFFECT: speeded up bringing of blast furnace to working intensity of heat.

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RU 2 089 616 C1

Authors

Lingart E.F.

Ovsjannikov N.I.

Golovakin P.A.

Zalmanovich R.I.

Titov V.I.

Dates

1997-09-10—Published

1990-04-11—Filed