Refiner segment with dams having curved sides
Реферат: The present disclosure provides a refiner segment (1) for refining of lignocellulosic material. The refiner segment (1) have a surface comprising a plurality of bars (10) extending along a direction between an inner periphery (17a) of the refining segment and an outer periphery (17b) of the refining segment (17b), and a plurality of dams (11). Each of the dams extend between a corresponding pair of adjacent bars (10, 10). The refiner segment (10) comprises at least one dam (11) that comprises a curved side (11c) facing the inner periphery (17b) of the refiner segment (1). The curved side (11c) have a concave curvature with regard to the inner periphery (17b) to thereby form a rounded section in an area (20) defined by the dam (11) and the corresponding pair of adjacent bars (10, 10). The rounded section gives a more robust refining segment. The present disclosure also provides a refiner disc that comprises such a refiner segment. The present disclosure additionally provides a refiner having at least one such refiner disc.
Refiner segment with dams having curved sides
Номер патента: EP3801911A1. Автор: Ake Olsson. Владелец: Valmet Oy. Дата публикации: 2021-04-14.