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Abstract

The cathode assembly of a reduction cell for aluminium production contains a metal pot with a bottom, bearing members covering the longitudinal and end walls and the bottom of the pot, with lining enclosed therein and cathode blocks with cathode rods forming the cathode of the reduction cell. On the longitudinal and end walls of the metal pot in the gaps between the bearing members there are fixed plate ribs and/or finger ribs with a developed structure for heat removal, with a belt made of composite material for steady heat removal installed in the upper part of the longitudinal and end walls of the metal pot. The cooling effect is achieved by a convective air flow caused by the lifting force resulting from the air heating in the space between the ribs at the melt level and the resulting temperature difference along the height of the cathode casing walls.

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First Claim