公开(公告)号：US20240316641A1

公开(公告)日：2024-09-26

申请号：US18578000

申请日：2022-08-31

Applicant: ANDRITZ INC.

Inventor： Luc Gingras ,  Yves Raymond

IPC: B22F10/31 ,  B22F10/50 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y80/00

CPC classification number: B22F10/31 ,  B22F10/50 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y80/00 ,  B22F2998/10

Abstract: A method for additive machining of a refiner plate segment having a feature pattern includes: fabricating the refiner plate segment with a partial feature pattern from a first material: performing optical scanning of the refiner plate segment to identify positions of features in the partial feature pattern: automatically generating first code for performing three-dimensional (3D) printing of a second material at first specified locations in the partial feature pattern from data obtained from the optical scanning; and performing 3D printing of the second material at the specified locations.

公开(公告)号：US20220034032A1

公开(公告)日：2022-02-03

申请号：US17451661

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; rows of teeth protruding from the front side of the substrate, wherein each of the rows are arranged along an arc extending from one side of the plate segment to an opposite side of the plate segment. In at least one of the rows of teeth, adjacent teeth are joined by a bridge spanning a gap between the adjacent teeth. The bridge is elevated above the front side of the substrate such that the bridge is separated from the front side by an open space in the gap.

公开(公告)号：US20190301097A1

公开(公告)日：2019-10-03

申请号：US16362070

申请日：2019-03-22

Applicant: Andritz Inc.

Inventor： Luc Gingras

IPC: D21D1/00 ,  B02C7/12 ,  D21C5/02

Abstract: A disperser-refiner plate segment comprising a refining section disposed radially outward from a dispersion section, wherein a height of the teeth in the dispersion section exceeds a height of the bars in the refining section. It is believed that disperser-refiner plate segments as described herein will allow operators to combine dispersion with refining and give operators greater control over the level of dispersion while minimally affecting the level of refining.

公开(公告)号：US20190264389A1

公开(公告)日：2019-08-29

申请号：US16280718

申请日：2019-02-20

Applicant: Andritz Inc.

Inventor： Luc Gingras ,  Tobias Michel

IPC: D21D1/30

Abstract: A flinger or refiner plate for a mechanical refiner including deep notches or holes in feeder bars of the flinger plate and/or open passages or holes in bars of the refiner plate. The open passages and/or holes in the bars significantly reduce stagnate flow zones at the trailing side of the bars during operation of the mechanical refiner. The reduction of the stagnate flow zones may reduce or eliminate fiber accumulation at the trailing side of the bars.

公开(公告)号：US10337145B2

公开(公告)日：2019-07-02

申请号：US15430774

申请日：2017-02-13

Applicant: Andritz Inc.

Inventor： Luc Gingras

IPC: D21D1/30 ,  B02C7/12

Abstract: A refining system and process using a specially designed stator refiner plate. The specially designed stator refiner plate includes a major refining surface having a series of bars and grooves, the bars include a leading surface having an irregular surface. The irregular surface hosts a series of protrusions extending along the bar. The bar further comprises a trailing surface that is relatively smooth compared to the leading surface. The trailing surface lacks an irregular surface.

公开(公告)号：US09085850B2

公开(公告)日：2015-07-21

申请号：US13849267

申请日：2013-03-22

Applicant: ANDRITZ INC.

Inventor： Luc Gingras

IPC: B02C7/06 ,  D21B1/26 ,  D21D1/30

CPC classification number: D21B1/26 ,  B02C7/06 ,  D21D1/30 ,  D21D1/306

Abstract: A system for refining lignocellulosic material including a first stator plate segment refining zone and a first rotor place segment refining zone, each of which has grooves. The rotor plate groove width is larger than the stator plate groove width in the inner part of the refining zone, but substantially similar in the outer part of the refining zone.

Abstract translation: 一种用于精炼木质纤维素材料的系统，包括第一定子板段精炼区和第一转子位置段精炼区，每个具有凹槽。 转子板槽宽度大于精炼区内部的定子板槽宽度，但在精炼区的外部部分基本相似。

公开(公告)号：US20240295075A1

公开(公告)日：2024-09-05

申请号：US18409748

申请日：2024-01-10

Applicant: ANDRITZ INC.

Inventor： Luc Gingras

IPC: D21D1/28

CPC classification number: D21D1/28

Abstract: A refiner plate includes at least one refining zone including a first plurality of refining bars and a plurality of grooves. At least one groove of the plurality of grooves has a first width between adjacent refining bars of the first plurality of refining bars at an inlet of the at least one refining zone narrower than a second width along a remaining portion of the at least one groove. At least one of the adjacent refining bars of the first plurality of refining bars has a widened portion in a circumferential direction of the refiner plate at an inlet portion of the at least one refining zone.

公开(公告)号：US20240011221A9

公开(公告)日：2024-01-11

申请号：US17451661

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; rows of teeth protruding from the front side of the substrate, wherein each of the rows are arranged along an arc extending from one side of the plate segment to an opposite side of the plate segment. In at least one of the rows of teeth, adjacent teeth are joined by a bridge spanning a gap between the adjacent teeth. The bridge is elevated above the front side of the substrate such that the bridge is separated from the front side by an open space in the gap.

公开(公告)号：US11851816B2

公开(公告)日：2023-12-26

申请号：US17451661

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; rows of teeth protruding from the front side of the substrate, wherein each of the rows are arranged along an arc extending from one side of the plate segment to an opposite side of the plate segment. In at least one of the rows of teeth, adjacent teeth are joined by a bridge spanning a gap between the adjacent teeth. The bridge is elevated above the front side of the substrate such that the bridge is separated from the front side by an open space in the gap.

公开(公告)号：US20230167605A1

公开(公告)日：2023-06-01

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.