Patent ID: 6818175
Filing Date: 2004-11-16
Classification: C21C,F27B,F27D,Y02P

Abstract:
System for producing steel, which comprises a vessel (1; 101; 1â€²), in which the metallic charge is melted, oxidized and refined, with an upper vessel section (5) with at least one opening, through which at least one electrode (21) can be lowered into the vessel, and with a lower vessel section (2) with a vessel bottom (3), and a bottom tapping system (10, 11) with a single opening (10) for tapping both the melt and the slag, the opening (10) of the bottom tapping system in the bottom (3) of the lower vessel section (2) is arranged either centrically or eccentrically to the vertical center axis of the vessel, the lower vessel section (2) having side wall tuyeres (13) through which oxygen and argon can be injected into the melt.