公开(公告)号：US20190184404A1

公开(公告)日：2019-06-20

申请号：US16220377

申请日：2018-12-14

Applicant: Andritz Inc.

Inventor： Marc BERGER ,  Luc GINGRAS

IPC: B02C7/12 ,  D21D1/30

Abstract: This disclosure relates to a refiner plate segment, mechanical refiners, and methods to manufacture a refiner plate segment having one or more water channels disposed in a variable substrate profile along the radial length of a refiner plate segment base and disposed between the refiner plate segment inlet and the primary refining section, wherein the variable substrate profile comprises an undulating curve configured to complement a second undulating curve on an opposing refiner plate, and wherein dimensions of the one or more water channels are sufficiently narrow to prevent wood chips from entering the water channels and sufficiently wide to provide a bypass path for the free water.