POWER SUPLY UNIT FOR ALUMINIUM ELECTROLYZERS CONNECTED IN SERIES Russian patent published in 2001 - IPC

FIELD: non-ferrous metallurgy; electrolytic production in electrolyzers arranged in two rows in housing and interconnected forming series circuit. SUBSTANCE: proposed unit includes two risers located on longitudinal sides symmetrically relative to its center, two other risers located symmetrically in inlet end of electrolyzer, two cathode collecting buses located on each longitudinal side of electrolyzer; some cathode rods of electrolyzer are connected with first cathode collecting buses and some cathode rods of electrolyzer located on side of outlet end are connected with second cathode collecting buses; first cathode collecting buses of electrolyzer are co0nnected with risers located in second end of subsequent electrolyzers; second cathode collecting buses of electrolyzer are connected with risers located on longitudinal sides of subsequent electrolyzer; risers located in inlet end face of electrolyzer are connected with beginning of anode buses; risers located on longitudinal side of electrolyzer are connected with center of anode buses. Device is provided with bus for compensating for effect of magnetic field of adjacent row of electrolyzers which is located at level of cathode collecting buses on external side of both rows of electrolyzers; bus used for compensation is connected to individual power supply system. Device is also provided with additional bus for compensating for effect of magnetic field of adjacent row of electrolyzers located at level of cathode collecting buses on internal side of both rows of electrolyzers and is connected with compensating bus forming series circuit; direction of current in additional bus coincides with flow of current in electrolyzer series. EFFECT: possibility of forming MHD-resistant electrolyzer due to efficient compensation for harmful effect of adjacent row of electrolyzers and favorable distribution of magnetic field in melt. 2 cl, 4 dwg