METHOD OF STEEL MANUFACTURING IN CONVERTER Russian patent published in 2008 - IPC C21C5/28 

FIELD: metallurgy.

SUBSTANCE: method includes leaving slug of previous melting in converter, charging to slug limestone in amount 20-34 kg/t of steel, plating of slug wall accretion by means of blowing of tank by nitrogen, scrap-charging, cast iron melting, blowing by oxygen with changing of its consumption and position of lance above the level of quiet tank, interaction by progress of heat lime with bitter-spar at its common quantity 17-40 kg/t of steel and steel discharge.

EFFECT: increasing of scrap material part and reduction of cast iron part in charge, saving of slag-forming material and energy resource at deficit of soft-burned lime, increasing of screening yield and receiving of quality wall accretion by all the surface of vessel lining.

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