BUSBARS FOR ALUMINUM CELLS WITH INCREASED POWER Russian patent published in 2005 - IPC

FIELD: production of aluminum by electrolysis of melt cryolite salts in cells arranged crosswise in housing for electrolysis.

SUBSTANCE: busbars include cathode busbars in the form of built-up buses arranged along inlet and outlet sides of cell and having cathode slopes; buses arranged under bottom. Said built-up buses embrace ends of series of cathode buses. Each series passes 33 - 50 % of inlet current. Cathode busbars are connected with anode busbars of next cell by means of struts. Some built-up buses of inlet side, built-up buses of outlet side and assemblies of cathode buses are arranged in upper level, approximately at metal level in cell; some built-up buses of inlet side and buses arranged under bottom are placed at lower level. Buses of cathode busbars are placed maximally close to shell of ferromagnetic cathode casing of cell. Each of buses arranged under bottom is divided by 2 - 4 mutually parallel conductors placed in zone of terminal blooms of cell. Large number of parallel conductors are placed at side opposite relative to adjacent row of cells arranged by two rows. Struts are in the form of one bus or, preferably in the form of two mutually parallel buses connected with different built-up buses and they are electrically connected one with other through anode buses.

EFFECT: creation of optimal magnetic field in melt at using cathode casings with different screening properties, lowered operation cost.

5 cl, 1 dwg