C - Chemistry – Metallurgy – 21 – C
Patent
C - Chemistry, Metallurgy
21
C
39/1, 53/81
C21C 5/34 (2006.01) C21B 13/00 (2006.01)
Patent
CA 1158443
ABSTRACT OF THE DISCLOSURE The invention is concerned with an improved method for the production of molten iron, which includes saturating a bath of iron contained in a vessel with carbon by injecting a carbon-carrier thereinto by means of an inert or reducing gas. The improvement comprises forming a cone-shaped loose mass of iron ore upon the surface of the bath in an inner zone remote from the walls of the vessel, blowing oxygen onto the free surface of the bath in an outer zone adjacent the walls of the vessel and flushing an inert gas through the bath from the bottom thereof. The invention also relates to an apparatus for carrying out this method, which comprises a metallurgical vessel for containing a bath of iron, having a cover provided with a feed conduit for charging iron ore onto the surface of the bath and forming thereupon a cone-shaped loose mass of iron ore in an inner zone remote from the walls of the vessel: at lea t one oxygen-lance extending through the cover for blowing oxygen onto the free surface of the bath in an outer zone adjacent the walls of the vessel; an injection-lance projecting into the vessel below the surface of the bath for injecting a carbon-carrier thereinto; and at least one nozzle-brick arranged in the bottom of the vessel for flushing an inert gas through the bath. The invention enables one to effectively control the composition of the gases pro- duced when oxygen is blow onto the bath of iron which is saturated with carbon, by the simultaneous flushing with an inert gas.
372064
Arbed S.a.
Swabey Ogilvy Renault
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