Patent ID: 8109457

Claim:
A pulp lifter assembly for a rotary grinding mill, the pulp lifter assembly comprising: an outer pulp lifter including walls defining a pulp lifter chamber and an outlet opening for radially inward discharge of slurry from the pulp lifter chamber, an inner discharger disposed radially inward of the outer pulp lifter and circumferentially offset from the outer pulp lifter, the inner discharger defining a passage for conveying slurry substantially radially inward, and a transition discharger disposed radially between the outer pulp lifter and the inner discharger, wherein the transition discharger comprises: a first wall bounding an interior space, and a second wall dividing the interior space into first and second regions, wherein the second wall includes a guide that bounds a channel connecting the outlet opening of the outer pulp lifter to the passage defined by the inner discharger.