公开(公告)号：US11859344B2

公开(公告)日：2024-01-02

申请号：US17451660

申请日：2021-10-21

Applicant: ANDRITZ INC.

Inventor： Luc Gingras

IPC: D21C5/02

CPC classification number: D21C5/025

Abstract: A plate segment includes: a substrate having a front side and a back side, wherein the back side is configured to be mounted to a support disc of a disperser; and rows of teeth protruding from the front side of the substrate. The rows of teeth are arranged along an arc extending from a first lateral side of the plate segment to an opposite lateral side of the plate segment. A first tooth in the rows of teeth has a first tooth face. A buttress extends from the first tooth face to a face of an adjacent tooth. The buttress has a concave profile at a height above the substrate less than a full height of the teeth.

公开(公告)号：US20220034034A1

公开(公告)日：2022-02-03

申请号：US17451027

申请日：2021-10-15

Applicant: ANDRITZ INC.

Inventor： Luc Gingras

IPC: D21D1/00 ,  B02C7/12 ,  D21C5/02 ,  D21D1/30

Abstract: A disperser apparatus includes: a first disperser assembly configured to rotate around an axis; and a second disperser assembly facing the first disperser assembly. The first and second disperser assemblies each have a plurality of disperser-refiner plate segments annularly arranged. Each of the disperser-refiner plate segments includes a substrate having teeth extending from the substrate and arranged in rows disposed at radial intervals defining a dispersion section. Each tooth has a tooth height; and walls; and edges at junctions of adjacent walls. Each of the disperser-refiner plate segments further includes a refining section of refiner bars extending from the substrate, wherein adjacent refiner bars and the substrate define a groove between the adjacent refiner bars; and a plurality transition bars disposed between radially outermost teeth and the refining section.

公开(公告)号：US20220034031A1

公开(公告)日：2022-02-03

申请号：US17451660

申请日：2021-10-21

Applicant: ANDRITZ INC.

Inventor： Luc Gingras

IPC: D21C5/02

Abstract: A plate segment includes: a substrate having a front side and a back side, wherein the back side is configured to be mounted to a support disc of a disperser; and rows of teeth protruding from the front side of the substrate. The rows of teeth are arranged along an arc extending from a first lateral side of the plate segment to an opposite lateral side of the plate segment. A first tooth in the rows of teeth has a first tooth face. A buttress extends from the first tooth face to a face of an adjacent tooth. The buttress has a concave profile at a height above the substrate less than a full height of the teeth.

公开(公告)号：US11208763B2

公开(公告)日：2021-12-28

申请号：US16656721

申请日：2019-10-18

Applicant: Andritz Inc.

Inventor： Luc Gingras

IPC: D21C5/02

Abstract: Dispersers and disperser plate segments configured to be mounted in dispersers, wherein the disperser plate segments comprise rows of teeth and wherein bridges span gaps between adjacent teeth in at least one of the rows of teeth, wherein the bridges are separated from a substrate of the front face by an open space in the gap. In other exemplary embodiments, a buttress extends from at least one face of the tooth to support the tooth.

公开(公告)号：US20210086189A1

公开(公告)日：2021-03-25

申请号：US17027247

申请日：2020-09-21

Applicant: Andritz Inc.

Inventor： Luc Gingras ,  Marc Berger

IPC: B02C7/12 ,  D21D1/30

Abstract: This disclosure relates to an apparatus for a counter-rotating mechanical refiner configured to mitigate the problems of feeding variations, load variations, high energy consumption due to poor feeding efficiency, low pulp quality, and reduced throughput capacity by positioning a flinger proximate to a rotor gap side of a first rotor, wherein the first rotor further comprises an inlet extending through the first rotor, such that a portion of the operational flinger deflects feed material from the inlet into the refiner gap while rotating in the direction of the first rotor.

公开(公告)号：US10675630B2

公开(公告)日：2020-06-09

申请号：US15935719

申请日：2018-03-26

Applicant: Andritz Inc.

Inventor： Luc Gingras

IPC: B02C7/12 ,  D21D1/30

Abstract: A refiner plate segment with a continuous transition zone spanning from the periphery or near the periphery of the plate in a substantial spiral toward the axis of rotation of the plate adjacent the breaker bar zone.

公开(公告)号：US20170152630A1

公开(公告)日：2017-06-01

申请号：US15432245

申请日：2017-02-14

Applicant: Andritz Inc.

Inventor： Luc Gingras ,  Yves Raymond

IPC: D21D1/30 ,  B02C7/12 ,  B22D25/02 ,  B23P15/28 ,  B22C9/02 ,  B22C9/22

CPC classification number: D21D1/306 ,  B02C7/12 ,  B22C9/02 ,  B22C9/22 ,  B22D25/02 ,  B23P15/28 ,  D21D1/008 ,  Y10T29/49989

Abstract: A cast metal plate segment for a refiner of lignocellulosic material or a disperser of comminuted paper or packaging products, the plate segment including a front side with a front surface configured to refine the lignocellulosic material or disperge the comminuted paper or packaging products, and a back side, opposite to the front side, including a corner or edge, wherein the corner or edge comprises a casted surface between machined planar surfaces adjacent the corner or edge.

公开(公告)号：US09605379B2

公开(公告)日：2017-03-28

申请号：US14169707

申请日：2014-01-31

Applicant: Andritz Inc.

Inventor： Luc Gingras ,  Yves Raymond

IPC: B02C7/12 ,  D21D1/30 ,  B23P15/28 ,  D21D1/00

CPC classification number: D21D1/306 ,  B02C7/12 ,  B22C9/02 ,  B22C9/22 ,  B22D25/02 ,  B23P15/28 ,  D21D1/008 ,  Y10T29/49989

Abstract: A cast metal plate segment for a refiner of lignocellulosic material or a disperser of comminuted paper or packaging products, the plate segment including a front side with a front surface configured to refine the lignocellulosic material or disperge the comminuted paper or packaging products, and a back side, opposite to the front side, including a corner or edge, wherein the corner or edge comprises a casted surface between machined planar surfaces adjacent the corner or edge.

公开(公告)号：US20140196858A1

公开(公告)日：2014-07-17

申请号：US14082424

申请日：2013-11-18

Applicant: Andritz Inc.

Inventor： Luc Gingras

IPC: D21B1/08

CPC classification number: D21B1/08 ,  B02C7/12 ,  D21D1/008 ,  D21D1/22 ,  D21D1/26 ,  D21D1/30 ,  D21D1/306

Abstract: An assembly of opposing discs or cones for a disperser where each disc or cone has mounted to it a plate or an array of plate segments with a front surface on each plate or array of plate segments and each surface has a series of bars, grooves and dams. The bars are in rows, with the rows separated by annular dams at substantially fixed radial locations, and the grooves are adjacent the bars in the rows so that the grooves form a serpentine passage extending radially between the opposing plates or array of plate segments on the opposing discs or cones. The opposing plate or array of plate segments are arranged such that the annular dams on one plate or array of plate segments face roughly the middle of the row of bars on the opposing plate or array of plate segments.

Abstract translation: 用于分散器的相对盘或锥体的组件，其中每个盘或锥体已经在其上安装有板或具有每个板或板段阵列上的前表面的板段的阵列，并且每个表面具有一系列杆，槽和 水坝 杆是成排的，其中行被基本上固定的径向位置处的环形坝隔开，并且槽与行中的杆相邻，使得槽形成径向延伸的蛇形通道，其在相对的板或板段之间 相对的圆盘或锥体。 相对的板或板段阵列被布置成使得一个板或板段阵列上的环形坝大致在相对的板或板段阵列上的条排的中间。

公开(公告)号：US11905660B2

公开(公告)日：2024-02-20

申请号：US17989428

申请日：2022-11-17

Applicant: ANDRITZ INC.

Inventor： Luc Gingras ,  Ismo Ihalainen

IPC: D21D1/30 ,  B03B5/64 ,  D21D1/22

CPC classification number: D21D1/306 ,  B03B5/64 ,  D21D1/22

Abstract: A deflaker plate for a deflaker machine may include a substrate and a plurality of teeth extending from the substrate, wherein a specified number of teeth of the plurality of teeth have a serrated face.