Modular busbar for series of aluminium electrolyzers

Abstract

The busbar system consists of an anode part designed to connect anodes in a cell line by means of anode rods, a cathode part composed of cathode rods with flexible strap stacks and designed to connect to the anode part of the next cell in a cell line by means of a bus module that comprises main (collecting) cathode busbars on the upstream and downstream sides of the cathode shell of the cell, connecting busbars located under the cell bottom, at least one anode riser on the upstream side and at least one anode riser on the downstream side of the cell. The busbar system is designed to supply current to two similar cell lines that are composed of one row of electrolysis (reduction) cells, such lines are designed to be independent from each other in terms of power supply and to have opposite current directions, and comprises correction (compensation) busbars.

1 . A busbar system for aluminum electrolysis (reduction) cells arranged side-by-side in series, consisting of an anode part designed to connect anodes in a cell line by means of anode rods, a cathode part composed of collector bars with flexible strap stacks and designed to connect to the anode part of the next cell in a line by means of a bus module comprising main (collecting) cathode busbars on the upstream and downstream sides of the cathode shell of the cell, connecting busbars located under the cell bottom, some of which in the outermost bus modules are designed to pass around the cell ends and be located at the molten metal level, at least one anode riser on the upstream side and at least one anode riser on the downstream side of the cell, which are located symmetrically with respect to the YZ symmetry plane of the electrolysis (reduction) cell and designed to be powered by the collector bars on the upstream and downstream sides of the previous cell in a line and to pass ½-¾ of the bus module current through the anode risers on the upstream side and ½-¼ of the bus module current through the anode risers on the downstream side, characterized in that it is designed to supply current to two similar aluminum cell lines composed of one row of electrolysis (reduction) cells, such lines being independent from each other in terms of power supply and having opposite current directions, in the meantime, it comprises correction (compensation) busbars located in close proximity to the cathode part of the electrolysis (reduction) cell row of the adjacent cell line, including ensuring compensation for the magnetic field. 
     
     
         2 . The busbar system according to  claim 1 , characterized in that the correction (compensation) busbars are parallel to the busbars of the cathode busbar system. 
     
     
         3 . The busbar system according to  claim 1 , characterized in that the correction (compensation) busbar stacks are designed to be partially arranged under the bottom and along the ends of electrolysis (reduction) cells.