C - Chemistry – Metallurgy – 21 – B
Patent
C - Chemistry, Metallurgy
21
B
C21B 13/02 (2006.01) F27B 1/21 (2006.01) F27D 3/08 (2006.01)
Patent
CA 2310022
The invention relates to a device for withdrawing lumpy material, especially lumpy material containing iron oxide and/or sponge iron, from a shaft furnace, especially a direct reduction shaft furnace. The withdrawal device consists of worm conveyors which protrude into the shaft furnace over the floor of the same. A number of worm conveyors are aligned along axes. The projection of said axes onto the horizontal cross-sectional surface of the shaft furnace or the imaginary extensions of the projection of the axes forms secants of the horizontal cross-sectional surface of the shaft furnace. Said axes extend at a distance from the central point of the cross section of the furnace.
L'invention concerne un dispositif pour retirer une charge isolée, notamment une charge isolée contenant de l'oxyde de fer et/ou du fer spongieux, d'un four à cuve, notamment d'un four à cuve de réduction directe. Ledit dispositif est constitué de vis transporteuses faisant saillie à l'intérieur du four à cuve, au-dessus du fond de ce dernier. Un certain nombre de vis transporteuses sont alignées le long d'axes. La projection de ces axes sur la surface de la section horizontale du four à cuve ou les prolongements imaginaires de la projection de ces axes forment des sécantes de la surface de la section horizontale du four à cuve. Ces axes s'étendent à distance du centre de la section du four.
Deutsche Voest-Alpine Industrieanlagenbau Gmbh
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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