BLASTING WHEEL TO OBTAIN A GRAIN MATERIAL STREAM

摘要

A wheel for providing a granular material stream has an axial inlet opening for the material and a mechanism shielding the outlet openings beyond the angular throw sector. The throwing element of the wheel is a bladeless rotating drum inside which is a chamber in which is formed a rotating layer of granular material on the walls inside the drum. This layer protects the walls against wear. For outflow of the material accelerated to throwing speed the chamber has at its circumference a series of outlet openings which are closed when outside the angular throw sector.