METHOD FOR DETECTING LOCAL ZONES OF BREAKAGE OF HEARTH OF ALUMINUM CELL Russian patent published in 2002 - IPC

FIELD: monitoring of technological processes in electrometallurgy, possibly in aluminum production, namely testing of state of aluminum cell hearth at operation. SUBSTANCE: method comprises steps of measuring with use of instruments physical parameters of construction members of hearth for detecting zones of local breakage according to fluctuation of those parameters relative to standard values of production process; measuring electric current load of all cathode rods and determining zones and degree of hearth breakage according to value of decreasing electric current load from standard one for cathode rod or group of cathode rods; measuring in addition temperature of all cathode rods for more accurately defining zones and degree of hearth breakage according to lowered temperature of cathode rod or group of cathode rods relative to standard value of technological process. EFFECT: lowered consumption of materials and labor for liquidation of hearth breakage and for preventing aluminum cell failure. 2 cl, 1 dwg, 1 tbl