A device for the metered introduction of a dust into a traeger gas stream

摘要

A device for introducing a dosed amount of pulverulent material into a carrier gas stream comprises a perforated disk which rotates into the powder so as to fill its passage holes with powder. The passage holes are then emptied of the powder which is contained in the holes in a blowing area. A considerable increase of the powder flow rate with respect to known devices is obtained by maintaining a predetermined blowing pressure and by giving to the passage holes appropriate sizes and arrangement.