Swirling air centrifugal scatter classifier

In a scatter classifier having a housing, a system for producing a swirling gas current in said housing, an upper first scatter plate, a lower second scatter plate under said upper plate, a system for turning said plates about a common upright axis at different speeds, said lower second plate having a greater diameter than said upper first plate, a middle feed inlet duct over said upper first plate, a system without said housing for producing a classifying gas current within said housing, said upper first plate having a first baffle ring thereon and designed to be turned therewith for guiding said feed, as moved by said plate, with a baffle function, the improvement residing in that said lower second plate has a second baffle ring thereon designed to be turned therewith.