FIELD: metallurgy.
SUBSTANCE: device contains a gas collecting covering which consists of separate folds assembled with a tilt along the total perimeter; the covering via electrolytic cells is connected to a gas collecting main by means of suction sleeves. The gas collecting main is made as separate sections assembled along longitudinal sides of an electrolytic cell bath. Outlets from the gas collecting main are directed to opposite sides of ends of the electrolytic bath. Not less than two curved gradually narrowing sucking sleeves are connected to the gas collecting main; the said sleeves are designed to change direction of a gas flow at 90° to an inlet to the gas collecting main. The separate sections of the gas collecting main are arranged cosymmetric against each of the longitudinal sides of the electrolytic cell bath.
EFFECT: reduced possibility of pollutants emission to environment.
2 cl, 4 dwg
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