COANDA EFFLUENT SUCTION DEVICE FOR GASEOUS EFFLUENTS FROM AN INDUSTRIAL ALUMINUM PRODUCTION TANK BY IGNEE ELECTROLYSIS

摘要

Device for over-suction of gaseous effluents coming from a vessel for the industrial production of aluminum by igneous electrolysis, installed on a sheath coming to be connected to a collector connected to a gas treatment center to which the gaseous effluents are directed, allowing to increase the suction flow when one or more covers are temporarily opened during an intervention on the tank, by means of the injection of pressurized gas at the internal periphery of the body of the device, constituting a section of the sheath , and arranged so as to create a Coandå effect generating over-suction.