CATHODE DEVICE OF ALUMINIUM ELECTROLYSER Russian patent published in 2012 - IPC C25C3/08 

FIELD: metallurgy.

SUBSTANCE: cathode device of aluminium electrolyser includes housing, bottom blocks with cathode rods, refractory casing under bottom blocks, side refractory, insert blocks from carbide-silicon material mounted close to side refractory. From above the side refractory is equipped with flange sheet mounted horizontally, between the upper surface of insert carbide-silicon block and flange sheet there is combined fire-resisting insert that is equipped with filling material and fire-resisting dielectric elements, the height of the insert is equal to 0.10-0.20 of insert block height.

EFFECT: possibility to increase destruction resistance of side refractory in the upper part in case of possible interaction with aluminium silicate and fluoride salts during melt penetration, service life of cathode device of aluminium electrolyser, reduction of specific consumption of energy and labour costs.

4 cl, 1 dwg, 1 ex