Screening apparatus for fiber suspension

摘要

A screening apparatus for screening acceptable and rejectable material from a pressurized fiber suspension includes a housing and a rotor within the housing. The rotor has a top end. A screen basket is positioned generally concentrically around the rotor. A rotor blade ring is connected to the top end of the rotor and rotates with the rotor. A stationary defibering ring is positioned adjacent to the rotor blade ring.