Device for mixing and degassing a flowable mass

Abstract

The device is used to mix and degas a flowable mass ( ), in particular a filler-containing casting resin. It is provided with a cylindrically constructed, evacuatable container ( ), the container axis ( ) of which is oriented essentially vertically. Guided along the container axis ( ), it also contains a shaft ( ) that holds agitating elements ( ). The container ( ) is divided into an upper storage container ( ) for holding the mass ( ) to be degassed, a lower buffer space ( ) for holding the degassed mass ( ), as well as a pass-through container ( ) with a degassing system arranged between storage container ( ) and buffer space ( ), in which degassing system the mass ( ) to be degassed is guided in the form of thin layers. The thin layer degassing system contains at least two conically constructed run-off surfaces ( ) offset axially relative to each other. The run-off surfaces are angled in opposing directions. Because of this, the mass ( ) to be degassed gravimetrically flows between the shaft ( ) and the wall of the container ( ) first from the inside to the outside, and then from the outside to the inside. This long flowing path significantly improves the degassing of the mass ( ). The stripping elements ( ) arranged just above the run-off surfaces ( ) and constructed as agitating arms cause the thin layers formed from the mass ( ) to be smoothed and mixed, and in this way additionally improve the degassing and mixing of the mass ( ).