Smelting installation with an electric-arc furnace

F - Mech Eng,Light,Heat,Weapons – 27 – D

Patent

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F27D 13/00 (2006.01) C21C 5/52 (2006.01) C21C 5/56 (2006.01) F27B 3/16 (2006.01) F27B 3/18 (2006.01) F27D 1/18 (2006.01) F27D 3/06 (2006.01)

Patent

CA 2263963

This invention concerns a smelting installation with an electric-arc furnace in which the roof of the oven vessel is constructed out of two units (7, 8) which are separated by an aperture (38) and can be moved independently of one another relative to the vessel horizontally. One of these units (8) consists of a shaft (9) which serves as pre-heater for the charge. The upper part of the vessel and the shaft (9) has a converging wall sector (42a, 58, 59).

L'invention concerne un groupe de fusion comportant un four à arc, dans lequel le couvercle de la carcasse du four est constitué de deux unités (7, 8) qui sont séparées par un espace (38) et peuvent coulisser horizontalement par rapport à la carcasse indépendamment l'une de l'autre, l'une des unités (8) comprenant un puits (9) servant d'élément de préchauffage de la charge. La partie supérieure de la carcasse et le puits (9) présentent un secteur de paroi (42a, 58, 59) convergent.

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