Method of managing the operation of a plant for the production of aluminium by igneous electrolysis and aluminium production plant for implementing this method

A plant for the production of aluminium by igneous electrolysis, comprising:

• two electrolysis tankrooms, each having a series of electrolysis tanks, said tankrooms being symmetrical with respect to a central passageway in which the handling of a molten-aluminium tapping ladle is carried out;
• wherein each of said series of tanks are surmounted by a plurality of pairs of machines respectively:
• for handling the anodes, carrying out the following functions:
• the pricking of the surface crust forming on the upper surface of each of the tanks, that is to say the breaking of this crust,
• the collecting of all or some of the pieces coming from the breaking of the said crust,
• the actual pulling-out of the spent anodes,
• the fitting of fresh anodes;
• for handling the tapping ladle, carrying out the following functions:
• the lifting of the anode frames;
• the operations of adding alumina into the tanks and of tapping off the liquid aluminium obtained,
• the ancillary maintenance operations and corrective actions during operation;
• wherein the two series of tanks are surmounted at their two ends by a transferring crane capable of allowing the machines to be transferred from one tankroom to the parallel tankroom in a closed-loop cycle;
• and wherein said machines are moved in pairs above the tanks.

A plant for the production of aluminium by igneous electrolysis, comprising:

• two electrolysis tankrooms, each having a series of electrolysis tanks, said tankrooms being symmetrical with respect to a central passageway in which the handling of a molten-aluminium tapping ladle is carried out;
• wherein each of said series of tanks are surmounted by a plurality of pairs of machines;
• wherein the two series of tanks are surmounted at their two ends by a transferring crane capable of allowing the machines to be transferred from one tankroom to the parallel tankroom in a closed-loop cycle;
• and wherein said machines are moved in pairs above the tanks.