PROCESS AND FACILITY FOR AUTOMATIC FEED OF ALUMINUM ELECTROLYZER WITH ALUMINA Russian patent published in 2001 - IPC

FIELD: metallurgy of light metals, electrolytic production of aluminum and stabilization of technological parameters of electrolysis. SUBSTANCE: automatic feed of aluminum electrolyzer with alumina and correcting additives is conducted through holes in scum formed by punches executing reciprocating motions. Raw material is fed into electrolyte melt out of metering slit of weighing machine by means of aerating pneumatic pulses. Feed of raw material is stopped spontaneously with interruption of supply of compressed air into system. Proposed facility has hopper for loose materials, weighing machine, pneumatic system, punches with drive and control unit to optimize cycling of feed of raw materials. Weighing machine comes in the form of metal box inside which inclined plate forming calibrating slit jointly with bottom of box is installed. EFFECT: optimized rational mode of feed of raw materials, stabilized volume of dose independent of external factors, diminished loss of raw materials and improved ecology. 8 cl, 2 dwg