CATHODE ASSEMBLY OF ALUMINUM ELECTROLYZER Russian patent published in 1998 - IPC

FIELD: non-ferrous metallurgy. SUBSTANCE: device has bottom, which consists of bottom blocks with cathode rods and is designed with inter-block seams which are filled with bottom filling, and side seams. Lower side seams are filled with heat-proof self-hardening material. Upper side seams are filled with bottom filling. In addition device has protection layer which is located below bottom blocks. Inter-block seams from below are covered with metal plates, which ends are bent upwards in order to embrace adjacent bottom blocks by height which is at least equal to height of side seam which is filled with heat-proof self-hardening material. EFFECT: increased service life, increased efficiency, improved quality of produced aluminum. 2 cl, 2 dwg