Patent ID: 7192511

Claim:
Regulation method for an electrolytic cell for the production of aluminum by means of electrolytic reduction of alumina dissolved in an electrolyte bath based on cryolite, said cell comprising a pot, at least one anode, at least one cathode component, said pot comprising internal side walls and being capable of containing a liquid electrolyte bath, said cell comprising at least one means to set said cell including a mobile anode frame to which said at least one anode is attached, said cell being capable of circulating an electrolytic current in said bath, said current having an intensity I, the aluminum produced by means of said reduction forming a liquid metal pad on said cathode component, said cell comprising a solidified bath ridge on said walls, wherein said regulation method comprises: determining a value of at least one indicator B by making a measurement of at least one variation of said ridge and wherein said indicator B correlates to said variation, and adjusting operating parameters to control overall thermics of said electrolytic cell using the value determined for indicator B as a basis for making adjustment to said parameters.