公开(公告)号：US20180154366A1

公开(公告)日：2018-06-07

申请号：US15579872

申请日：2016-06-06

Applicant: Valmet Technologies Oy

Inventor： Christer Hedlund ,  Dino Muhic ,  Petteri Vuorio ,  Anders Hawen

IPC: B02C7/12 ,  D21D1/30

CPC classification number: B02C7/12 ,  D21D1/306

Abstract: A blade element (1) for a refiner for refining fibrous material comprises a refining surface (3) provided with blade bars (8, 10) and blade grooves (9, 11) there-between. The blade bars (8, 10) have side walls (8″, 8′″) facing away from one another. The side walls (8″, 8′″) of the at least one blade bar (8) comprise on both of its side walls (8″, 8′″) steps (14″, 14′″) which extend at least partly in the transversal direction relative to the side walls (8″, 8′″) of the blade bar (8) and away from one another.

公开(公告)号：US10953405B2

公开(公告)日：2021-03-23

申请号：US15579872

申请日：2016-06-06

Applicant: Valmet Technologies Oy

Inventor： Christer Hedlund ,  Dino Muhic ,  Petteri Vuorio ,  Anders Hawen

IPC: B02C7/12 ,  D21D1/30

Abstract: A blade element (1) for a refiner for refining fibrous material comprises a refining surface (3) provided with blade bars (8, 10) and blade grooves (9, 11) there-between. The blade bars (8, 10) have side walls (8″, 8′″) facing away from one another. The side walls (8″, 8′″) of the at least one blade bar (8) comprise on both of its side walls (8″, 8′″) steps (14″, 14′″) which extend at least partly in the transversal direction relative to the side walls (8″, 8′″) of the blade bar (8) and away from one another.