Metallurgical apparatus – With control means responsive to sensed condition – With means responsive to condition of treated material
Patent
1981-05-04
1982-08-24
Rosenberg, Peter D.
Metallurgical apparatus
With control means responsive to sensed condition
With means responsive to condition of treated material
75 52, 75 59, 75 60, 266 78, 266 79, 266 96, C21C 530
Patent
active
043457460
ABSTRACT:
A ferrous melt, e.g. of steel, is refined beneath a slag layer by blowing from above with an oxygen-containing gas through a lance and by bubbling an inert gas through the melt from the bottom. According to the invention, the consistency of the slag layer and/or its level is continuously detected on the one hand and the rate of decarburation of the bath is detected on the other hand and in response to these measurements the volume rate of flow of the bubbling gas is controlled on the one hand to maintain a predetermined spacing of the slag layer from the head of the lance and, on the other hand, a fluid consistency of the slag.
REFERENCES:
patent: 3649246 (1972-03-01), Fulton
patent: 3663204 (1972-05-01), Jungwirth
patent: 3854932 (1974-12-01), Bishop
patent: 4047937 (1977-09-01), Kolb
patent: 4197116 (1980-04-01), Kolb
Baumert Jean
Goedert Ferdinand
Henrion Romain
Lorang Lucien
Schleimer Francois
Arbed S.A.
Rosenberg Peter D.
Ross Karl F.
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