CATHODE DEVICE OF ALUMINIUM CELL Russian patent published in 2001 - IPC

FIELD: non-ferrous metal metallurgy, namely electrolytic production of aluminum, particularly cathode devices of aluminum cells. SUBSTANCE: cathode device includes metallic rectangular casing of cathode, hearth made of blocks with cathode rods mounted in them and lateral lining. Several hearth blocks with cathode rods mounted in them are placed normally relative to lengthwise axis of cell; other hearth blocks are placed in parallel with lengthwise axis of cell. In order to form along the whole periphery of cathode device protective lining slag in zone of electrolyte and sharply dropping hearth crust in zone of metal, cathode rods secured to hearth blocks that are arranged normally relative to lengthwise axis of cell are withdrawn through lengthwise sides of cathode casing; cathode rods mounted in hearth blocks that are arranged in parallel with lengthwise axis of cell are withdrawn through end side of cathode casing. EFFECT: increased useful life of cathode device of aluminum cell. 1 dwg