Withdrawal device for a shaft furnace

Details Withdrawal device for a shaft furnace Withdrawal device for a shaft furnace

C - Chemistry, Metallurgy

21

B

C21B 13/02 (2006.01) F27B 1/21 (2006.01) F27D 3/08 (2006.01)

Patent

CA 2308388

The invention relates to a shaft furnace (1), especially a direct reduction shaft furnace, with a charging stock (2) of lumpy material, especially lumpy material containing iron oxide and/or sponge iron, and conveyor screws (3) for removing the lumpy material from the shaft furnace (1). Said conveyor screws intersperse the shaft furnace casing in which they are mounted and are arranged over the floor area of the shaft furnace (1).

L'invention concerne un four à cuve (1), notamment un four à cuve de réduction directe, comportant une charge (2) de matériau en morceaux contenant notamment de l'oxyde de fer et/ou du fer spongieux, ainsi que des vis sans fin (3) permettant d'extraire le matériau en morceaux du four à cuve (1). Ces vis sont contenues dans la paroi du four, dans laquelle elles sont montées et sont disposées au-dessus de la région inférieure du four à cuve (1).

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