Device for introducing gas into waste waters.

摘要

A device is described for introducing gas into waste waters in a gas treatment tank equipped with horizontal gas treatment boxes arranged in parallel next to each other and at a distance to each other, in the upper sides of which gas outlet orifices are arranged and the lower sides of which are open, which device is characterised in that movable rotary bodies are arranged in the gas outlet orifices 13 of the gas treatment boxes 14 and the gas outlet orifices 13 in a known manner each have at the bottom a central countersinking 12 enclosing an angle alpha of, for example, 90 to 180 DEG C and the remaining residual wall thickness 15 of the gas outlet orifice 13 of each countersinking 12 is 0.5 to 2 mm. …In this case, the rotary bodies according to the invention can comprise a head part 1 and foot part 3, which are connected to a neck part 2. The head part can comprise two loops 4 and 4', the axis 8 of the loops 4 and 4' being vertical to the axis 7 of the neck part 2 and the surface of the loops 4 and 4' is inclined at an angle beta of preferably 30 to 60 DEG about the axis 8, and the foot part 3 can comprise two bows 6 and 6', which are connected to the neck part 2 and which at the neck part 2 form an angle gamma of, for example, 90 to 180 DEG to each other. ……