C - Chemistry – Metallurgy – 21 – C
Patent
C - Chemistry, Metallurgy
21
C
C21C 5/32 (2006.01) C21C 5/30 (2006.01) C21C 5/46 (2006.01) C21C 7/068 (2006.01) C21D 11/00 (2006.01)
Patent
CA 2388397
this invention concerns a blowing lance and a procedure for the metallurgical treatment of molten steel in a converter with oxygen top blown over the molten steel. In order to monitor the treatment process the intention is for a temperature probe (21) to be integrated into the water-cooled lance head (2) behind the front end of the lance head (11a) and between the cooling chambers (5-10) formed in the lance head (2). The signal lines (26) of this temperature probe run through the lance body (1), more specifically, in a central protective pipe which has no connections to the cooling medium or to the oxygen conducting channels (15, 16, and 17).
L'invention concerne une lance de soufflage et un procédé de traitement métallurgique d'acier en fusion dans un convertisseur à soufflage d'oxygène par le haut, sur l'acier en fusion. Pour contrôler le processus de traitement, on intègre une sonde de température (21) à la tête de lance refroidie par eau (2), derrière l'extrémité avant de la tête de lance à filière (11a) et entre les chambres de refroidissement (5-10) formées dans la tête de lance (2). Les lignes de transmission des signaux (26) de la sonde parcourent le corps de lance (1), plus spécifiquement dans une conduite de protection centrale non reliée au milieu de refroidissement ou aux canaux d'acheminement de l'oxygène (15, 16, et 17).
Berry Metal Company
Mcfadden Fincham
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