METHOD AND APPARATUS FOR ALUMINUM POTLINE CONTROL

摘要

A method and apparatus for controlling the operation of aluminum reduction cells by controlling the position of the cell anode and by controlling the addition of alumina ore to the cell electrolyte. Anode position adjustment occurs after addition of alumina to the electrolyte and is based upon periodic measurements of resistance drop across the cell. Upon completion of anode position adjustment, the cell resistance is monitored by periodically determining first and second resistance values. The addition of alumina to the electrolyte is initiated upon detection of a predetermined difference between the current second resistance value and a base resistance value determined from the first resistance values.