EQUIPPING OF POWERFUL ALUMINUM ELECTROLYZERS WITH THE BUS-BARS Russian patent published in 2005 - IPC

FIELD: chemical industry; equipping of powerful aluminum electrolyzers with the bus-bars.

SUBSTANCE: the invention is pertaining to the field of equipping of an aluminum electrolyzer with bus-bars. Equipping of the powerful aluminum electrolyzer at their two-row longitudinal location in the body contains: cathode rods, divided into groups, each of which is connected to a separate packet of cathode bus-bars; the anode buses connected by rising mains located along both sides of a longitudinal cathode casing with packets of cathode buses of a preceding along the current run electrolyzer, two cross-section buses connecting a packet of cathode buses located on the right side of an outlet butt of the cathode casing of a preceding electrolytic bath with the left-side inlet rising main and the left-side outlet rising main with the right-side anode bus and is made with three rising mains. At that the current loading to the left-side outlet rising main is fed by separate packets of buses, a part of which is connected with the left-side anode bus in a point dividing its length in the following ratio (1.9-2.,3 : 1), and the rest part of the buses is connected with the right-side anodic bus in the point dividing its length in the ratio (3.5-4.5 : 1), and the inlet and outlet ends of the anodic buses are connected by jumpers. At that distribution of the current-loading on the rising mains makes (in %): the left-side inlet rising main - 32-35, the right-side inlet rising main - 40-42, the left-side outlet rising main - 24-26, at that 8-10 % of the current loading to the left-side outlet rising main is fed by a separately made packet of cathode buses from the left-side of the cathode casing of the preceding electrolytic bath. The invention ensures increase of current efficiency up to 90.2%.

EFFECT: the invention ensures increase of current efficiency up to more than 90%.

3 cl, 1 dwg