METHOD OF MELTING STEEL IN CONVERTER Russian patent published in 1996 - IPC

Abstract RU 2066689 C1

FIELD: ferrous metallurgy, namely production of steel in converters with combination-type blowing. SUBSTANCE: method comprises steps of charging scrap material, pouring iron, blowing bath; realizing blowing by and neutral gas over three stages; sustaining constant flowrate of neutral gas over each stage of blowing; partially supplying through bottom neutral gas had been heated up to 450-500 C; over first stage quota of neutral gas had been heated consists 10-20% of its total consumption; over other stages - 80-90%. EFFECT: simplified technology of blowing process, increased efficiency of waste gas afterburning in cavity of converter and metal refining from harmful additives, enhanced strength of bottom lining. 1 cl, 1 tbl

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RU 2 066 689 C1

Authors

Protopopov E.V.

Ajzatulov R.S.

Chernysheva N.A.

Verevkin G.I.

Sokolov V.V.

Dates

1996-09-20—Published

1993-05-14—Filed