METHOD AND APPARATUS FOR POURING ALUMINUM FROM ELECTROLYZER Russian patent published in 1996 - IPC

FIELD: electrolytic production of aluminum. SUBSTANCE: method involves providing suction pipe of vacuum ladle with cooling device, with cooling device having coils shifted one with respect to the other and V-shaped output directed into pipe cavity; connecting cooling device to gas balloon or line; supplying nitrogen through coiled cooling device; providing pumping of nitrogen prior to dipping and continuing pumping till the end of process. EFFECT: increased service life, improved quality of metal and reduced labour intensity. 3 cl, 3 dwg