C - Chemistry – Metallurgy – 21 – C
Patent
C - Chemistry, Metallurgy
21
C
53/91
C21C 5/28 (2006.01) C21C 5/34 (2006.01) C21C 5/35 (2006.01)
Patent
CA 1123608
- 1 - ABSTRACT "Process for the production of steel from pig iron and scrap" A bottom or side blown oxygen steel-making process with oxygen blown-in below the surface of the melt is additionally provided with oxygen top- blowing. The top-blown oxygen is supplied through nozzles and the jets which issue from these nozzles are in the form of free jets which impinge on the surface of the melt. The free jets act with an injector effect to mix fully with the exhaust gases in the gas space of the converter in which the process is carried out. This provides efficient burning of the exhaust gases and effective transfer of the heat thus produced to the melt. The heat balance of the process is thus improved and thus allows a greater proportion of scrap to liquid pig iron to be used in the charge than can be used in conventional top or bottom- blown oxygen steelmaking processes.
317826
Eisenwerk-Gesellschaft Maximilianshutte M.b.h.
Swabey Ogilvy Renault
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