MODULE-TYPE BUS ARRANGEMENT OF ALUMINUM PRODUCING ELECTROLYZERS Russian patent published in 2006 - IPC C25C3/16 

FIELD: production of aluminum by electrolysis of molten cryolite salts in electrolyzers at two-row cross arrangement.

SUBSTANCE: electrolyzer bus arrangement includes anode buses connected with anodes by means of anode rods, cathode buses made from cathode rods with flexible stacks projecting on both sides of electrolyzer cathode casing, sectional cathode buses on input and output sides of electrolyzer cathode casing, connecting buses, joint for connection of cathode buses with anode buses in adjacent electrolyzer row made in form of bus modules, sectional cathode buses; anode risers are combined in bus modules: at least one anode riser in each module on input and output sides of electrolyzer; anode risers on input side are connected with cathode rods both on input and output sides of previous electrolyzer; anode risers on output side are connected with cathode rods on output side of previous electrolyzer. Each bus module makes it possible to pass 10-100% of current of series, preferably 18-30%. Anode risers on input side make it possible to distribute 1/2-3/4 of module current and anode risers on output side make it possible to pass 1/2-1/4 of module current; they are located symmetrically relative to short planer axle of electrolyzer. Connecting buses pass under electrolyzer bottom; all connecting buses of extreme modules or part of them embrace end faces of electrolyzer and are located at level of molten metal. Number of cathode rods on half closer to adjacent row on input side exceeds that on opposite half.

EFFECT: increased productivity of electrolyzer due to increased current intensity; reduced mass of buses; low operational expenses.

6 cl, 3 dwg