Patent ID: 6086717
Filing Date: 2000-07-11
Classification: D21C

Abstract:
A separator disposed in a digester having a digester wall, comprising:a screw feeder having an inlet end and an outlet end for feeding a fiber material in an upward direction from the inlet end towards the outlet end of the screw feeder;the digester having an inlet opening defined therein for receiving a suspension of the fiber material and a transport liquid, and the digester having an outlet opening defined therein;a rotatable shaft in operative engagement with the screw feeder;a drive unit secured to the rotatable shaft for rotating the rotatable shaft;a cylindrical screen basket having a central space defined therein for enclosing the screw feeder;the cylindrical screen basket having a liquid collecting space defined therein, the liquid collecting space being in fluid communication with the central space of the cylindrical screen basket; anda distribution means for supplying a supply liquid to the fiber material, the distribution means being disposed circumjacent to the screen basket and adjacent to the outlet end of the screw feeder.