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摘要

Method for the removal of sludge from electrolyzers, especially electrolyzers for the fused salt electrolysis of magnesium, where a mixture of melted electrolyte and sludge by means of a suction pipe immersed into the electrolysis bath, by suction is brought up into a collecting tank, which is connected to a vacuum source. The mixture of sludge and melted electrolyte is led into the tank, by settling the sludge is separated from the melt and after the vacuum is neutralized, the melt is led back into the bath of the electrolytic cell through the same suction pipe, while the sludge continuously is separated from the mixture and freely sinks down to the bottom of the tank.