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公开(公告)号：US20230138194A1
公开(公告)日：2023-05-04
申请号：US18088924
申请日：2022-12-27
发明人： Tafadzwa Motsi , David Robert Skuse , Jean Andre Alary , Andreas Borger , Neil Rowson , Thomas Richard Skuse
摘要： A method for manufacturing microfibrillated cellulose, a particulate grinding medium suitable for use in said method, a material which wears rough, and a method for making said particulate grinding medium.
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公开(公告)号：US20210262166A1
公开(公告)日：2021-08-26
申请号：US17315638
申请日：2021-05-10
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.
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公开(公告)号：US20210180251A1
公开(公告)日：2021-06-17
申请号：US17115303
申请日：2020-12-08
发明人： Juha Aronen
摘要： An arrangement and a method for adjusting a blade gap in a refiner. The arrangement comprises at least one loading device arrangeable to move at least one refining element of the refiner in respect of at least one another refining element of the refiner for adjusting the blade gap between the refining elements, at least one vibration measuring device for measuring a vibration of the refiner in operation, and at least one control unit configurable to adjust the blade gap between the refining elements by controlling the at least one loading device to move the at least one refining element in respect of the at least one another refining element based on the measured vibration of the refiner.
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公开(公告)号：US10808356B2
公开(公告)日：2020-10-20
申请号：US14890392
申请日：2014-05-13
发明人： Markus Nuopponen , Juha Tamper , Taisto Tienvieri
摘要： In a method for producing nanofibrillar cellulose, cellulose based fiber material in dispersion is processed for separating fibrils. The method includes a first step where the fiber material is supplied to a disperser, where it flows through several counter-rotating rotors in such a way that the material is repeatedly subjected to shear and impact forces by the effect of the different counter-rotating rotors, and a second step, where the fiber material obtained from the first step is supplied to a homogenizer, where it is subjected to homogenization by the effect of pressure.
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公开(公告)号：US20200246801A1
公开(公告)日：2020-08-06
申请号：US16782519
申请日：2020-02-05
申请人： Andritz Inc.
发明人： Arvind M. Singhal , Long Nguyen
摘要： This disclosure relates to refiner plate segments having feeding grooves having a first width at a first end of the feeding groove, wherein the first end of the feeding groove is disposed closer to an inner diameter of the refiner plate segment, and a second end of the feeding groove having a second width, wherein the second end of the feeding groove is disposed closer to the outer diameter than the first end and wherein the second width is less than the first width. It is believed that the increased width of the feeding groove at the inner diameter, coupled with the change in angle or curve of the feed groove from a feeding angle to a holding angle such that the centrifugal force applied to the lignocellulosic material surpasses the plugging force, allows for improved hydraulic capacity over the refiner plate segment without reducing refining efficiency.
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公开(公告)号：US20170191218A1
公开(公告)日：2017-07-06
申请号：US15315212
申请日：2015-06-24
申请人： ANDRITZ FIEDLER GMBH
摘要： A set for mechanical processing suspended fibrous material includes a die plate having receiving openings in a predefined arrangement for insertion of blade-shaped processing elements which jut out on a process side and are flowed onto by the fibrous material. The blade-shaped processing elements have each a plurality of foot regions in longitudinally spaced-apart relation, which pass through the die plate (2) and jut out from the die plate on a process-distal. At least some of the foot regions of the processing elements reach into associated receiving grooves of a base plate on the process-distal side. As an alternative, transverse stiffening elements are arranged substantially orthogonally in the longitudinal direction of the processing elements such that the transverse stiffening elements stabilize the foot regions of the processing elements on the process-distal side.
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公开(公告)号：US20170145635A1
公开(公告)日：2017-05-25
申请号：US15310324
申请日：2015-05-14
发明人： Tafadzwa Motsi , David Robert Skuse , Jean Andre Alary , Andreas Borger , Neil Rowson , Thomas Richard Skuse
CPC分类号： D21H11/18 , C04B35/10 , C04B35/48 , C04B2235/3217 , C04B2235/3229 , D21D1/00
摘要： A method for manufacturing microfibrillated cellulose, a particulate grinding medium suitable for use in said method, a material which wears rough, and a method for making said particulate grinding medium.
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公开(公告)号：US08646708B2
公开(公告)日：2014-02-11
申请号：US13381973
申请日：2010-07-01
申请人： Jorma Halla
发明人： Jorma Halla
IPC分类号： D21D1/00
摘要： A refiner (1) for refining fibrous material has a first refiner element (3, 5) and a second refiner element (3, 5). The second refiner element is arranged around the first refiner element in such a manner that the first refiner element and the second refiner element have a common middle axis (7) such that there is a refining space (8) between the first refiner element and the second refiner element. The first refiner element and/or the second refiner element are arranged to rotate around the middle axis and the refiner elements have refining surfaces (4, 6), through which the fibrous material is fed into or exits the refining space (8). The refiner has, in the direction of the middle axis of the refiner elements, at least two feed regions, through which the fibrous material to be refined is feedable into the refining space (8).
摘要翻译： 用于精制纤维材料的精磨机（1）具有第一精磨机元件（3,5）和第二精磨机元件（3,5）。 第二精炼元件以第一精磨机元件和第二精磨机元件具有共同的中间轴线（7）的方式设置在第一精磨机元件周围，使得在第一精磨机元件和第二精磨机元件之间存在精炼空间（8） 第二精磨机元件。 第一精磨机元件和/或第二精磨机元件布置成围绕中轴线旋转，并且精磨机元件具有精磨表面（4,6），纤维材料通过该精磨表面进入或离开精炼空间（8）。 精磨机在精磨机元件的中轴方向上具有至少两个进料区域，待精制的纤维材料可通过该进料区域进料到精炼空间（8）中。
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公开(公告)号：US08133583B2
公开(公告)日：2012-03-13
申请号：US12521299
申请日：2007-03-05
申请人： Sufeng Tian , Lejun Wang
发明人： Sufeng Tian , Lejun Wang
CPC分类号： D01F1/07 , D01F2/06 , Y10T428/2913 , Y10T428/2916 , Y10T428/2965 , Y10T428/2993
摘要： The present invention provides a fire retardant antiflux fiber, the fiber is composed of the following components: cellulose 60˜80% by mass, silicon fire retardant (calculated as silicon dioxide) 15˜36% by mass, tourmaline 0.1˜5%. The present invention also provides a process of producing fire retardant antiflux fiber, in the adding step, the silicon fire retardant is added into the cellulose xanthate in the xanthation step or the viscose which was prepared after the xanthation step, the level of adding the silicon fire retardant is 19˜30%, calculated as silicon dioxide. The fire retardant antiflux fiber of the present invention has high fire retardant antiflux effect, high fiber strength and excellent negative ion generating efficacy. At the same time, the viscose also maintains excellent filtering performance in the procedure using above production process, reducing the production standstill caused by the viscose blocking up filter screen, improving production efficiency. The viscose fiber can be used to fabricate nonwoven fabric widely.
摘要翻译： 本发明提供一种阻燃抗流纤维，该纤维由以下成分组成：纤维素60〜80质量％，硅阻燃剂（以二氧化硅计）为15〜36质量％，电气石为0.1〜5％。 本发明还提供一种制备阻燃抗流纤维的方法，在添加步骤中，在黄原酸化步骤中的黄原酸酯中加入硅阻燃剂或在黄原酸化步骤之后制备的粘胶，添加硅的水平 阻燃剂为19〜30％，以二氧化硅计。 本发明的阻燃抗纤维纤维具有较高的阻燃抗氧化作用，高纤维强度和优异的负离子产生效能。 同时，粘胶在使用上述生产工艺的过程中也保持了优异的过滤性能，减少了粘胶堵塞过滤网引起的生产停顿，提高了生产效率。 粘胶纤维可广泛用于制造无纺织物。
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10.发明申请公开(公告)号：US20050263259A1
公开(公告)日：2005-12-01
申请号：US11014336
申请日：2004-12-16
申请人： Manpreet Sidhu , Richard Van Fleet , Michel Dion
发明人： Manpreet Sidhu , Richard Van Fleet , Michel Dion
CPC分类号： D21D1/002
摘要： Thermomechanical pulp is an important process for producing fibrous mass used in papermaking. A two-level control strategy that stabilizes and optimizes the refining process has been developed. The Stabilization layer consists of a multivariable model predicative range controller that regulates the refiner line operations. The Quality Optimization layer provides the pulp quality control as measured by an online pulp quality (freeness, fibre length) sensor. This control startegy leverages the natural decoupling in the process. The modular design technique is able to handle multiple refiner lines that empty into a common latency chest. A global optimizer is also used to integrate and coordinate the two layers for enhanced constraint handling.
摘要翻译： 热机械纸浆是生产用于造纸的纤维块的重要工艺。 已经开发了稳定和优化精炼过程的两级控制策略。 稳定层由调整精炼机线路运行的多变量模型预测范围控制器组成。 质量优化层提供了通过在线纸浆质量（游离度，纤维长度）传感器测量的纸浆质量控制。 这种控制开始利用了过程中的自然去耦。 模块化设计技术能够处理多个精炼线，将其排入普通滞后的胸部。 全局优化器也用于整合和协调两层以增强约束处理。
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