C - Chemistry – Metallurgy – 21 – C
Patent
C - Chemistry, Metallurgy
21
C
53/91
C21C 5/28 (2006.01) C21C 5/35 (2006.01)
Patent
CA 1147966
ABSTRACT OF THE DISCLOSURE The disclosure describes a method of producing steel from a bath of molten steel contained in a converter, provided with lower injectors, which are mounted below the surface of the bath, and with a water cooled lance and/or top blowing injectors to operate above the surface of the melt. The im- provement according to the invention comprises feeding oxygen to the surface of the bath through the water cooled lance and/or through at least one top blowing injector, directed against the surface of the bath, and injecting at least periodically into the molten steel, through the lower injectors, a carrier gas essentially free of oxygen and at least partly charged with ground solids effective for forming slag and/or supply- ing heat to the bath. This method combines the advantages of both the top-blowing and the through-blowing method.
366629
Brotzmann Karl
Mantey Paul-Gerhard
Eisenwerk-Gesellschaft Maximilianshutte M.b.h.
Swabey Ogilvy Renault
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