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1. 发明授权

US12012695B2 Double-disc refiner 有权
公开(公告)号：US12012695B2
公开(公告)日：2024-06-18
申请号：US17438100
申请日：2020-02-17
申请人： VALMET AB
发明人： Karl Lönngren , Mikael Lundfors
IPC分类号： D21D1/30 , B02C7/12
CPC分类号： D21D1/303 , B02C7/12
摘要： A double disc refiner includes a first refining disc at a feed end and an opposing second refining disc. The first disc has inlet opening(s) and a first distal surface facing a second disc opposing surface. A first disc refining segment has a second distal surface facing the opposing surface that has a first height relative to a plane of the first distal surface in a direction toward the opposing surface. A first disc center plate has elongated protrusions radially extending therefrom and a third distal surface having a second height in the direction of the first height that is at least equal to the first height. Each protrusion has a fourth distal surface continuous with the third distal surface and a third height in the direction of the first height equal to the second height. The third distal surface is separated from the opposing surface by 5-15 mm.

2. 发明授权

US11965290B2 Apparatus and method for processing wood fibers 有权
公开(公告)号：US11965290B2
公开(公告)日：2024-04-23
申请号：US17315638
申请日：2021-05-10
申请人： INTERNATIONAL PAPER COMPANY
发明人： Dwight Edward Anderson
IPC分类号： D21D1/30 , D21D1/00
CPC分类号： D21D1/303 , D21D1/008 , D21D1/30 , D21D1/306
摘要： A refining member comprising a refining body with a refining surface comprising first and second refiner bars separated by first and second refiner grooves, respectively. The first refiner bars extend from a radially inward position to a first radially outward position. The second refiner bars extend to a second radially outward position that is nearer to an outermost part of the refining body than the first radially outward position. The second refiner bars have a longitudinal length from about 0.6 cm to about 10 cm. The first and second refiner bars have a respective first and second maximum height extending upward from a floor of a respective, adjacent first or second refiner groove. The second maximum height is at least 0.35 mm less than the first maximum height. The first refiner bars are adapted to refine wood fibers and the second refiner bars are adapted to break up fiber bundles.

3. 发明公开

US20240068161A1 Accessory for disc refiner 审中-公开
公开(公告)号：US20240068161A1
公开(公告)日：2024-02-29
申请号：US17894384
申请日：2022-08-24
申请人： VALMET AB
发明人： Robert SHORT
IPC分类号： D21D1/30
CPC分类号： D21D1/303
摘要： A method for updating a disc refiner by at least partly covering notches of a locknut in the disc refiner and an accessory for a disc refiner Said disc refiner comprising a motor and a rotation shaft assembly, wherein said rotation shaft assembly comprises a rotation shaft, which is connecting the motor and a rotor refiner disc of the disc refiner for driving rotation of the rotor refiner disc from the motor, said rotation shaft assembly further comprising at least one bearing, which is provided between a shaft housing and the rotation shaft for allowing rotation of the rotation shaft within the shaft housing, said rotation shaft assembly further comprising at least one ring-shaped locknut, which is encircling the rotation shaft and configured for holding the at least one bearing in place on the rotation shaft, said locknut comprising notches for a tool to grip when attaching the locknut in the rotation shaft assembly, wherein said accessory is configured for being attached to the locknut and comprises at least one covering part configured for at least partly covering said notches of the locknut when attached to the locknut.

4. 发明授权

US11898310B2 Device for mechanically processing lignocellulose-containing fibrous material 有权
公开(公告)号：US11898310B2
公开(公告)日：2024-02-13
申请号：US17432458
申请日：2020-02-18
申请人： Valmet Technologies Oy
发明人： Petteri Vuorio , Håkan Sjöström
IPC分类号： D21D1/30 , B02C7/12
CPC分类号： D21D1/306 , B02C7/12 , D21D1/30 , D21D1/303
摘要： A processing plate (4, 12) for mechanically processing pulp. The plate has projecting parts (6, 7, 14, 15). The projecting parts (7, 15) have a radially inner part (28) having an inclined ascending wall (29) towards the outer periphery (23) of the plate and a radially outer part (30) having an inclined descending wall (31) towards the outer periphery (23) of the plate (4, 12). The inner and outer parts (28, 30) are radially coupled to each other by a ridge (32) along a coupling line (CL). The walls (29, 31) are mutually connected only partly so that they have in common only a crest section (40) of the ridge (32) which crest section (40) is less than a width of at least one of the wall (29) of the inner part (28) and the wall (31) of the outer part (30) at the coupling line (CL).

5. 发明授权

US11701665B2 Refiner for refining lignocellulosic material and refining segments for such a refiner 有权
公开(公告)号：US11701665B2
公开(公告)日：2023-07-18
申请号：US17021075
申请日：2020-09-15
申请人： VALMET AB
发明人： Christer Hedlund , Karl Lönngren , Mikael Lundfors
IPC分类号： B02C7/12 , D21D1/30 , B02C7/06 , B02C7/18
CPC分类号： B02C7/12 , B02C7/06 , B02C7/188 , D21D1/30 , D21D1/303 , D21D1/306
摘要： A refiner for refining of lignocellulosic material includes a rotor disc and a stator disc. The rotor disc includes a first refining segment that includes a plurality of first protruding structures for grinding of the lignocellulosic material. Each of the first protruding structures is defined by a first height. The stator disc is arranged opposite the rotor disc and includes a second refining segment that includes a plurality of second protruding structures for grinding of the lignocellulosic material. Each of the second protruding structures being defined by a second height. The first height is at least three times larger than the second height.

6. 发明申请

US20170073893A1 HIGH EFFICIENCY PRODUCTION OF NANOFIBRILLATED CELLULOSE 有权
标题翻译：高效率生产纳米纤维素
公开(公告)号：US20170073893A1
公开(公告)日：2017-03-16
申请号：US15309117
申请日：2015-05-06
申请人： University of Maine System Board of Trustees
发明人： Michael A. Bilodeau , Mark A. Paradis
IPC分类号： D21D1/30 , D21C9/00 , D21H11/18
CPC分类号： D21D1/30 , D21C9/007 , D21D1/303 , D21D1/306 , D21H11/18
摘要： A scalable, energy efficient process for preparing cellulose nanofibers is disclosed. The process employs treating the cellulosic material with a first mechanical refiner with plates having a configuration of blades separated by grooves, and subsequently treating the material with a second mechanical refiner with plates having a configuration of blades separated by grooves different than the first refiner. The plate configurations and treatment operations are selected such that the first refiner produces a first SEL that is greater than the SEL of the second refiner, by as much as 2-50 fold. An exemplary high first SEL may be in the range of 1.5 to 8 J/m. Paper products made with about 2% to about 30% cellulose nanofibers having a length from about 0.2 mm to about 0.5 mm, preferably from 0.2 mm to about 0.4 mm have improved properties.
摘要翻译：公开了一种用于制备纤维素纳米纤维的可伸缩的节能方法。该方法采用用第一机械磨浆机处理纤维素材料，其中板材具有由槽分隔的叶片构型，随后用具有不同于第一精磨机的槽分隔的叶片构型的第二机械磨浆机处理该材料。板配置和处理操作被选择为使得第一精磨机产生大于第二精磨机的SEL的第一SEL高达2-50倍。示例性的高第一SEL可以在1.5至8J / m的范围内。用大约2％至大约30％的长度为约0.2mm至约0.5mm，优选为0.2mm至约0.4mm的纤维素纳米纤维制成的纸制品具有改进的性能。

7. 发明授权

US09267234B2 Blade element and refiner 有权
标题翻译：刀片元件和精磨机
公开(公告)号：US09267234B2
公开(公告)日：2016-02-23
申请号：US14140363
申请日：2013-12-24
申请人： Juha-Pekka Huhtanen , Vesa Harju , Markku Partanen , Olli Tuovinen , Petteri Vuorio
发明人： Juha-Pekka Huhtanen , Vesa Harju , Markku Partanen , Olli Tuovinen , Petteri Vuorio
IPC分类号： B02C7/00 , D21D1/30 , B02C7/12 , D21D1/22
CPC分类号： D21D1/306 , B02C7/12 , D21D1/22 , D21D1/303
摘要： A refiner (1, 2, 3) for refining fibrous material. And a blade element (18) for a refiner (1, 2, 3) intended for refining fibrous material. The blade element (18) having a refining surface (18′), which has blade bars (21, 23) and blade grooves (22, 24) between them. The top surface of at least one blade bar (21, 23) is provided with refining grits (25). The blade element (18) has portions (29, 30) forming a protruding part extending away above the refining surface (26a, 26b) and above the blade bars (21, 23) or the refining grits (25) on the refining surface.
摘要翻译：用于精制纤维材料的精制机（1,2,3）。和用于精炼纤维材料的精磨机（1,2,3）的叶片元件（18）。叶片元件（18）具有在它们之间具有叶片杆（21,23）和叶片槽（22,24）的精磨表面（18'）。至少一个叶片杆（21,23）的顶表面设置有精炼砂粒（25）。叶片元件（18）具有形成在精炼表面（26a，26b）上方延伸并且位于精炼表面上的叶片杆（21,23）或精炼砂粒（25）之上的突出部分的部分（29,30）。

8. 发明申请

US20140326813A1 CHOPPING-GRINDING MILL 审中-公开
标题翻译：切割磨机
公开(公告)号：US20140326813A1
公开(公告)日：2014-11-06
申请号：US14357047
申请日：2012-11-09
申请人： MOLINARI S.R.L.
发明人： Giovanni Lorenzo Gervasoni
IPC分类号： B02C7/12 , B02C25/00 , B02C7/08
CPC分类号： B02C7/12 , B02C7/08 , B02C7/11 , B02C25/00 , B02C2201/04 , D21D1/303
摘要： A chopping-grinding mill for used objects and other waste materials includes a base, on which a disc-shaped vertical-axis rotor (2) is rotatably mounted, the rotor (2) having a plurality of cutting blades (5, 6) fixed to its upper surface. A disc-shaped coaxial stator (3) is associated with the rotor (2) and carries a plurality of cutting blades (II, 12) fixed to its lower surface. The stator (3) is fixed at an adjustable distance above the rotor (2), which together define a grinding chamber. Primary cutting blades (5, II) extend from the centre to the periphery of the rotor (2) and stator (3) and secondary cutting blades (6, 12) extend only in correspondence of a peripheral crown of the rotor (2) and of the stator (3), while a feeding window (10) of the material to be ground is provided in the stator (3), in the area inside to the peripheral crown.
摘要翻译：用于使用物体和其它废料的碾磨机包括其上可旋转地安装有盘形垂直轴转子（2）的基座，具有固定有多个切割刀片（5,6）的转子（2）到其上表面。盘形同轴定子（3）与转子（2）相关联并且承载固定在其下表面上的多个切割刀片（II，12）。定子（3）固定在转子（2）上方的可调节距离处，它们共同限定了研磨室。主切割刀片（5，II）从转子（2）和定子（3）的中心延伸到周边，并且次切割刀片（6,12）仅对应于转子（2）的外周冠部和定子（3）的内部，在定子（3）内设置待研磨材料的供给窗口（10）。

9. 发明申请

US20140131489A1 STATOR REFINER PLATE ELEMENT HAVING CURVED BARS AND SERRATED LEADING EDGES 有权
标题翻译：具有弯曲棒和压缩导线边缘的定子精加工板元件
公开(公告)号：US20140131489A1
公开(公告)日：2014-05-15
申请号：US14056348
申请日：2013-10-17
申请人： ANDRITZ INC.
发明人： LUC GINGRAS
IPC分类号： B02C7/12 , D21D1/30
CPC分类号： D21D1/303 , B02C7/12 , D21D1/306
摘要： A refining system and process using a specially designed stator refiner plate that includes a major refining surface comprising a series of bars and grooves, the bars include a leading surface that comprises an irregular surface hosting a series of protrusions extending along the bar, and a trailing surface that is relatively smooth compared to the leading surface that lacks an irregular surface.
摘要翻译：一种使用专门设计的定子精磨机的精炼系统和方法，其包括包括一系列杆和凹槽的主要精炼表面，所述杆包括前表面，所述前表面包括不规则表面，所述前表面包含沿着所述杆延伸的一系列突起，与缺少不规则表面的前表面相比，表面相对光滑。

10. 再颁专利

USRE39688E1 Tangential discharge disk refiner 有权
标题翻译：切向放电盘精磨机
公开(公告)号：USRE39688E1
公开(公告)日：2007-06-12
申请号：US10422476
申请日：2003-04-24
申请人： Christopher J. LaRiviere
发明人： Christopher J. LaRiviere
IPC分类号： B02C7/02
CPC分类号： B02C7/06 , D21D1/303
摘要： A papermaking refiner has two stationary disks mounted to the support structure of a fixed housing. A rotating disk is mounted on a shaft which extends through the housing. The support structure allows stock to circulate on both sides of the disk support structure, thus balancing fluid pressures on both sides of the fixed disk and preventing thermal gradients for reduced deflection of the disks. The incoming stock is centrifugally accelerated in a shroud which separates and traps tramp metal or the like before the stock passes to the refiner disks. The shroud has passageways which allow the rotating fluid to enter a reservoir which surrounds the drive shaft and feeds the gaps between the rotor and the stationary plates.
摘要翻译：造纸精磨机具有安装到固定壳体的支撑结构的两个固定盘。旋转盘安装在延伸穿过壳体的轴上。支撑结构允许坯料在盘支撑结构的两侧上循环，从而平衡固定盘两侧的流体压力并防止热梯度以减少盘的偏转。输入的原料在护套中离心加速，该护套在原料通过磨浆机盘之前分离和捕集杂质金属等。护罩具有允许旋转流体进入围绕驱动轴并且在转子和固定板之间的间隙供给的储存器的通道。

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