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    Ftnitf-n
    37.
    发明授权
    Ftnitf-n 失效

    公开(公告)号：US1540258A

    公开(公告)日：1925-06-02

    申请号：US1540258D

    IPC分类号： B02C7/06

    CPC分类号： B02C7/06

    Refiner plate having inter-bar wear protrusions
    40.
    发明授权
    Refiner plate having inter-bar wear protrusions 有权

    公开(公告)号：US11982053B2

    公开(公告)日：2024-05-14

    申请号：US17277205

    申请日：2019-10-07

    申请人： ANDRITZ INC.

    发明人： Luc Gingras ,  Tobias Michel

    IPC分类号： D21D1/30 ,  B02C7/06 ,  B02C7/12

    CPC分类号： D21D1/306 ,  B02C7/12 ,  B02C7/06

    摘要： The problem of increased energy usage in refiners over the working life of a refining assembly is mitigated by the use of a refiner plate segment having a refiner side and a back side distally disposed from the refiner side, refiner bars engaged to a substrate of the refiner side, wherein the refiner bars have a refiner bar height, and wherein adjacent refiner bars and the substrate define grooves between the adjacent bars, and protrusions disposed in the grooves, wherein the protrusions have a protrusion height, wherein the protrusion height is 30% or less of the refiner bar height.