METHOD OF MELTING STEEL IN OXYGEN TOP-BLOWN CONVERTER Russian patent published in 2009 - IPC C21C5/28 

FIELD: metallurgy.

SUBSTANCE: invention refers to ferrous metallurgy, particularly to production of steel in oxygen converters. The method consists in charging solid steel scrap, pouring of liquid iron, refining with oxygen, introducing additional amount of heat and in metal tapping. Introducing additional heat is performed by means of arranging a complex of fuel-oxygen burners, secured at the end of a rod vertically traveling along the axis of the converter. When non-alloyed steel is melted and when steel scrap is charged at amount of more, than 25% from the weight of metallic charge, laser beam is directed simultaneously with blasting metal with oxygen; in case of melting high alloyed steel with addition of portions of solid alloying materials to the converter after completion of blasting metal with oxygen laser beam is directed after introduction of each portion of hard alloying materials for their melting.

EFFECT: melting steel in converter with increased share of scrap in charge.