C - Chemistry – Metallurgy – 21 – C
Patent
C - Chemistry, Metallurgy
21
C
C21C 5/56 (2006.01) C21B 11/00 (2006.01) C21B 13/00 (2006.01) C21B 13/10 (2006.01) C21B 13/14 (2006.01) C21C 5/30 (2006.01)
Patent
CA 2492243
Metallurgical vessel for iron and steel making comprising a bottom portion, a sidewall and a lance arrangement of at least two lances for supplying oxygen containing gas to the interior of the vessel in operation wherein each lance comprises an end portion for emitting oxygen containing gas characterised in that the lance arrangement is configured so as to achieve in operation a substantially downwardly directed flow of post-combusted gases at the side wall of the vessel and a substantially upwardly directed flow of post- combusted gases in the center of the vessel.
L'invention concerne une cuve de métallurgie destinée à être utilisée dans l'industrie du fer et dans la fabrication d'acier. Cette cuve comprend une partie fond, une paroi latérale et un dispositif de lances composé d'au moins deux lances servant à introduire un gaz contenant de l'oxygène dans ladite cuve en fonctionnement. Chaque lance comprend une partie d'extrémité permettant d'émettre du gaz contenant de l'oxygène. La cuve selon l'invention est caractérisée en ce que le dispositif de lances est conçu pour créer, lors du fonctionnement, au niveau de la paroi latérale de la cuve, un écoulement de gaz de post-combustion dirigé sensiblement vers le bas et, au centre de la cuve, un écoulement de gaz de post-combustion dirigé sensiblement vers le haut.
Denys Mark Bernard
Meijer Hendrikus Koenraad Albertus
Corus Technology Bv
Ridout & Maybee Llp
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