Electrolytic cell with a heat exchanger

Details Electrolytic cell with a heat exchanger Electrolytic cell with a heat exchanger

C - Chemistry, Metallurgy

25

C

C25C 3/08 (2006.01)

Patent

CA 2627956

The invention relates to electrolytic cells used for producing aluminum. The lateral walls (8) of the cell, which surround its crucible (4, 4') are comprised, on at least a fraction of their height and/or their thickness, of a porous material part (13) capable of permitting the circulation of a heat transfer gas, the porous material part (13) being connected to inlet (15) and outlet means (16) of the heat transfer gas whereby constituting a heat exchanger that recovers the heat energy lost on the sides of the cell.

Image L'invention se rapporte aux cellules d'électrolyse utilisées pour la production d'aluminium. Les parois latérales (8) de la cuve, qui entourent son creuset (4, 4'), sont constituées, sur au moins une fraction de leur hauteur et/ou de leur épaisseur, par une partie en matière poreuse (13), apte à permettre la circulation d'un gaz caloporteur, la partie en matière poreuse (13) étant raccordée à des moyens d'entrée (15) et de sortie (16) du gaz caloporteur, de manière à constituer un échangeur thermique récupérant l'énergie thermique perdue sur les côtés de la cuve.

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