LINING METHOD FOR CATHODE ASSEMBLY OF ELECTROLYZER FOR PRIMARY ALUMINIUM PRODUCTION (VERSIONS) Russian patent published in 2017 - IPC C25C3/08 

FIELD: metallurgy.

SUBSTANCE: method includes filling the cathode assembly casing with heat insulation layer, building up a refractory layer, followed by packing layers, installing hearth and side blocks, followed by sealing the joints between them with cold ramming paste. In accordance with the first alternative of the presented method an elastic element made of compact fibreboard with the thickness of (2.5-4)⋅10^-4 of the cathode width is installed between the heat insulation and refractory layers. According to the second alternative of the presented method flexible graphite foil is installed between the heat insulation and refractory layers and an elastic element of the abovementioned fibreboard is mounted beneath it.

EFFECT: reduced power consumption during the electrolyzer operation by improving the stabilization of the thermal properties of the heat insulation in the basement, extended life of electrolyzers.

6 cl, 5 dwg, 1 tbl