Patent ID: 8753001
Filing Date: 2014-06-17
Classification: B01F,E21B

Abstract:
1. A metering apparatus for producing a powdery medium on a surface of a free-flowing fluid, comprising: a housing having an inclined bottom plate, on which the fluid flows under the effect of gravity, a guide device for guiding the fluid and forming a continuous flow of the fluid in the housing, wherein a width of the fluid film is a multiple of a depth of the fluid film, and a metering device arranged above the guide device and dispensing the powdery medium, the metering device constructed to scatter the powdery medium onto the fluid surface, said metering device comprising a first metering roller and a cooperating counter element defining a metering gap having a width which corresponds substantially to the width of the guide device, and a roller-shaped metering brush separating lumped particles of the powdery medium exiting the metering device.