Busbar arrangement for aluminium electrolysers with a longitudinal position

摘要

The invention relates to a busbar arrangement for heavy-duty aluminium electrolysers when said electrolysers have a longitudinal position. The busbar arrangement comprises anode busbars, risers and cathode rods, which are divided into groups, each of which is connected to separate cathode busbars, wherein the cathode busbars for the groups of rods closest to the input end of the preceding electrolyser are connected to the risers positioned at the input end of the following electrolyser, and the remaining groups of cathode rods are connected to the risers at the output end of the following electrolyser. The cathode busbars for the groups of rods closest to the input end of the preceding electrolyser are positioned beneath the base of the preceding electrolyser, and the cathode busbars of the remaining groups of rods are positioned beneath the base of the preceding and the following electrolysers or of the preceding and following electrolysers and along the cathode sheath on the front face side of the following electrolyser. The risers at the input end of the following electrolyser are mounted with an offset towards the centre of the electrolyser relative to the risers at the output end of the following electrolyser. A high degree of compensation of electromagnetic forces in the melt is achieved by virtue of optimization of the configuration of the magnetic field in the electrolyser bath and a reduction in the vertical magnetic field.