FIELD: physics.
SUBSTANCE: invention relates to an electrolyzer for producing aluminum by electrolysis in an electrolyte melt with an inert anode. Inert anode includes anode body having at least one side wall, cavity made inside anode body along its axis and having upper hole on top of anode body, wherein anode side wall surrounds cavity along its perimeter, rod having first end connected to current source, and a second end opposite the first end, wherein the second end passes downward into the anode body cavity through its upper opening to a position located above the electrolyte-gas melt interface in the electrolyzer, shell, completely surrounding the second end of the pin inside the cavity and passing from the cavity to the first end to surround the part of the pin located above the cavity, element extending from the rod second end through the electrolyte-gas melt interface in the electrolysis cell, and a filler held in the cavity between the inner surface of the anode body and the pin and intended to maintain an electrical connection between the pin and the anode body. At that, pin is made of material selected from a group including stainless steel, nickel, nickel alloy, Inconel, copper, copper alloy or corrosion-protected steel, shell is made of conductive material selected from a group consisting of platinum, palladium, gold, silver and copper, aluminum oxide, the element is made of a material selected from the group consisting of copper, platinum, palladium, gold and silver; the aggregate material is a liquid cement mortar, cast refractories, cement, copper, copper alloy, platinum, palladium, gold or silver. Embodiments of an inert anode are disclosed.
EFFECT: ensures the stability of the anode in the bath during the production of the metal by preventing the formation and growth of corrosion products with a pin.
20 cl, 6 dwg
