METHOD OF MIXING STEEL IN LADLE Russian patent published in 2003 - IPC

Abstract RU 2197540 C2

FIELD: non-ferrous metallurgy. SUBSTANCE: proposed method includes bottom blowing of steel with gas or gas-and-powder mixture through blowing units; at least one blowing unit is shifted from longitudinal axis of ladle towards its wall. Blowing units are moved relative to steel in horizontal plane by swinging and rotating the ladle relative its longitudinal axis. Amount of motion of blowing units (angle of swinging and rotating) is set depending on position of blowing units in ladle bottom: no less than to no less than 1/3 of revolution of ladle. Proposed method ensures delivery of gas or gas-and-powder mixture over entire volume of steel in ladle for maximum mixing of steel improving quality of steel due to high-quality purification from fine inclusions after blowing. EFFECT: enhanced efficiency; extended functional capabilities. 5 cl, 11 dwg

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RU 2 197 540 C2

Authors

Shumakher Ehdgar Eh.

Khloponin V.N.

Shumakher Ehval'D A.

Zinkovskij I.V.

Dates

2003-01-27—Published

2001-04-24—Filed