EP 0319836 B1 19910724 - METHOD AND APPARATUS FOR OPERATING A MELTING GASIFIER
Title (en)
METHOD AND APPARATUS FOR OPERATING A MELTING GASIFIER
Publication
Application
Priority
DE 3742156 A 19871210
Abstract (en)
[origin: EP0319836A1] A process for operating a fusion gasifier (4) is described, in which iron ore-containing raw materials or iron sponge obtained therefrom by direct reduction are fused by addition of carbon carriers and supply of an oxygen-containing gas via oxygen nozzles (6) in a moving bed thus established and are (fully) reduced to molten crude iron or steel raw material. In the event of failure or a reduction in the oxygen supply below a predetermined rate and in the event of a failure of the water-cooling of the oxygen nozzles, the oxygen supply which may still persist is interrupted for the protection thereof and, instead, an inert gas is introduced via the oxygen nozzles into the fusion gasifier. This prevents molten fluid-bed mass from entering the oxygen nozzles and solidifying therein. In the event of failure of the water cooling of the oxygen nozzles, the inert gas serves at the same time as a coolant. <IMAGE>
IPC 1-7
IPC 8 full level
C21B 5/00 (2006.01); C21B 11/02 (2006.01); C21B 13/00 (2006.01); C21B 13/14 (2006.01)
CPC (source: EP KR US)
C21B 13/002 (2013.01 - EP US); C21B 13/02 (2013.01 - KR); C21B 2100/44 (2017.04 - EP US)
Designated contracting state (EPC)
GB IT LU SE
DOCDB simple family (publication)
DE 3742156 C1 19881013; AU 2459888 A 19890615; AU 611215 B2 19910606; BR 8806514 A 19890822; CA 1310826 C 19921201; DD 283651 A5 19901017; EP 0319836 A1 19890614; EP 0319836 B1 19910724; JP H01283308 A 19891114; JP H0368081 B2 19911025; KR 890010215 A 19890807; KR 960001709 B1 19960203; RU 1838428 C 19930830; UA 12803 A 19970228; US 4891062 A 19900102; ZA 889147 B 19891129
DOCDB simple family (application)
DE 3742156 A 19871210; AU 2459888 A 19881102; BR 8806514 A 19881209; CA 585491 A 19881209; DD 32286788 A 19881208; EP 88119930 A 19881130; JP 31179588 A 19881209; KR 880015894 A 19881130; SU 4356948 A 19881206; UA 4356948 A 19881206; US 28059688 A 19881206; ZA 889147 A 19881207