Method and apparatus for the recovery of refractory debris...

C - Chemistry – Metallurgy – 21 – B

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C21B 3/04 (2006.01) C21C 5/52 (2006.01) F27D 3/00 (2006.01)

Patent

CA 2602751

A method for the recovery of refractory debris materials and ladle slags as process slags in the iron metallurgy production in EAFs and the related metering to the furnace for the formation of the process slag comprises the following steps: grinding and screening of the refractory debris materials until powders of controlled granulometry are obtained, storage of the powders in storage sites, injection of the powders into an EAF furnace by means of automatic metering of the various components .

La présente invention concerne un procédé permettant de récupérer des matériaux de débris réfractaires et des scories de poche de coulée lesquelles sont des scories de traitement, pour la production métallurgique de fer dans des fours à arc (EAF). L'invention concerne également le dosage associé du four nécessaire à la formation d'une scorie de traitement. Le procédé décrit dans cette invention comprend les étapes qui consistent: à moudre et à cribler les matériaux de débris réfractaires jusqu'à obtention de poudres présentant une granulométrie déterminée; à stocker ces poudres dans des sites de stockage; à injecter les poudres dans un four à arc (EAF) par dosage automatique de divers composants.

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