公开(公告)号：US20230193558A1

公开(公告)日：2023-06-22

申请号：US18084720

申请日：2022-12-20

Applicant: Valmet Technologies Oy

Inventor： Juha-Pekka Huhtanen ,  Tuomo Aho

IPC: D21F1/00 ,  D21H11/18 ,  D21F9/00 ,  D21F3/08 ,  D21F3/04 ,  D21G9/00 ,  D21F1/80

CPC classification number: D21F1/0009 ,  D21H11/18 ,  D21F9/003 ,  D21F3/08 ,  D21F3/04 ,  D21G9/0027 ,  D21F1/80

Abstract: The invention relates to a system of producing MFC (micro fibrillated cellulose) having a process device (30) of a pulper, a refiner or a screen configured to process MFC suspension to consistency of 0.5-5%. The system has a continuous pressing means (15; 25, 26) configured to dry the MFC suspension to a consistency of 6-60%. A method of producing MFC has at least one process stage (30) which processes a MFC suspension to a consistency of 0.5-5% by a process device (30). In the process stage the MFC suspension is pulped in a pulping stage in a pulper and/or refined in a refining stage by a refiner and/or screened in a screening stage by a screen. The MFC suspension having the consistency of 0.5-5% is dried in a drying stage of continuous pressing (15, 25, 26) by continuous a pressing device (15, 25, 26) to a consistency of 6-60%.

公开(公告)号：US20170284024A1

公开(公告)日：2017-10-05

申请号：US15510843

申请日：2014-09-15

Applicant: UPM Specialty Papers Oy

Inventor： Jukka Kotilainen ,  Jussi Leinonen ,  Janne Antila ,  Jari Tamminen

IPC: D21F3/04 ,  D21H27/00 ,  D21G1/00 ,  D21F5/00 ,  D21H19/10

CPC classification number: D21F3/04 ,  D21F2/00 ,  D21F5/00 ,  D21F5/004 ,  D21F11/00 ,  D21G1/00 ,  D21H19/10 ,  D21H25/04 ,  D21H27/001

Abstract: The invention relates to manufacturing low weight high quality paper suitable for use as a support layer of a release liner. A paper web is formed from pulp slurry, the moisture content of the paper web is reduced by a press section (PSEC), the paper web is supported by a belt (BELT1) from a first contact point (CP1) in the press section (PSEC) to a first separation point (SP1) in a drying section (DSEC), and the paper web is dried to form paper. The temperature profile of the paper web may be non-decreasing. When supported, the temperature of the paper web of the paper web may be higher than or equal to 56° C. to obtain a paper web having a dry content of at least 40 wt.-% at the first separation point.

公开(公告)号：US08902903B2

公开(公告)日：2014-12-02

申请号：US13285963

申请日：2011-10-31

Applicant: Santashil Palchaudhuri ,  Gopalakrishnan Raman

Inventor： Santashil Palchaudhuri ,  Gopalakrishnan Raman

IPC: H04L12/28 ,  D21G9/00 ,  D21F3/04

CPC classification number: D21G9/0036 ,  D21F3/04 ,  H04L41/12 ,  H04W8/005 ,  H04W8/26 ,  H04W40/24 ,  H04W72/0446 ,  H04W74/04

Abstract: Assigning slots to nodes in a mesh network. Slot numbers are assigned to nodes in a wireless mesh network using a depth-first search combined with information on 2-hop neighborhoods for each node. Assigning slots using 2-hop neighborhood information allows slots to be safely reused. The slot assignment process may take process in parallel using different wireless channels for different subtrees rooted to a controller. Slot assignment may be repeated when the mesh topology changes. Reporting using the slot numbers allows for information from child nodes to be aggregated or filtered at parent nodes.

Abstract translation: 为网状网络中的节点分配插槽。 使用与每个节点的2跳邻域的信息相结合的深度优先搜索将无线网状网络中的节点分配给节点号。 使用2跳邻居信息分配插槽允许插槽安全地重复使用。 时隙分配过程可以使用不同的无线信道并行地处理基于控制器的不同子树。 当网格拓扑发生变化时，可能会重复插槽分配。 使用插槽号的报告允许从父节点汇总或过滤来自子节点的信息。

公开(公告)号：US08852403B2

公开(公告)日：2014-10-07

申请号：US14102942

申请日：2013-12-11

Applicant: Kadant Canada Corp.

Inventor： Hughes Dionne ,  Marc-Andre Hetu ,  Daniel Parenteau

IPC: D21F1/00

CPC classification number: D21F3/04 ,  B30B9/243 ,  D21C9/18 ,  D21F1/80

Abstract: A twin wire press for dewatering solid-liquid suspensions, such as pulp suspensions, between top and bottom webs is described herein which includes consecutive primary, secondary and tertiary dewatering sections. The primary dewatering section includes a wedge area. The secondary dewatering section is positioned adjacent to the primary section downstream therefrom and includes grooved rolls in an s-roll configuration. The tertiary dewatering section includes rolls in a scissor-nip configuration. The press rolls in the secondary and tertiary section are all supported onto a frame. Whenever maintenance is to be performed on any one of the grooved rolls or on the press roll assemblies, an overhead crane can for example be used since no frame structure is provided on top thereof.

Abstract translation: 本文描述了一种用于在顶部和底部腹板之间脱水固体 - 液体悬浮液（例如纸浆悬浮液）的双网压榨机，其包括连续的一级，二级和三级脱水段。 初级脱水段包括楔形区域。 次级脱水部分邻近其下游的主要部分定位，并且包括s辊构型的带槽辊。 第三脱水部分包括剪刀压区构造的辊。 二次和三次部分的压辊都支撑在框架上。 无论何时在任何一个带槽辊或压辊组件上进行维护，例如可以使用起重机，因为在其顶部没有设置框架结构。

公开(公告)号：US20120048494A1

公开(公告)日：2012-03-01

申请号：US13138601

申请日：2010-03-09

Applicant: Hugues Dionne ,  Marc-André Hétu ,  Daniel Parenteau

Inventor： Hugues Dionne ,  Marc-André Hétu ,  Daniel Parenteau

IPC: D21F1/06 ,  D21F3/04

CPC classification number: D21F3/04 ,  B30B9/243 ,  D21C9/18 ,  D21F1/80

Abstract: A twin wire press for dewatering solid-liquid suspensions, such as pulp suspensions, between top and bottom webs is described herein which includes consecutive primary, secondary and tertiary dewatering sections. The primary dewatering section includes a wedge area. The secondary dewatering section is positioned adjacent to the primary section downstream therefrom and includes grooved rolls in an s-roll configuration. The tertiary dewatering section includes rolls in a scissor-nip configuration. The press rolls in the secondary and tertiary section are all supported onto a frame. Whenever maintenance is to be performed on any one of the grooved rolls or on the press roll assemblies, an overhead crane can for example be used since no frame structure is provided on top thereof.

Abstract translation: 本文描述了一种用于在顶部和底部腹板之间脱水固体 - 液体悬浮液（例如纸浆悬浮液）的双网压榨机，其包括连续的一级，二级和三级脱水段。 初级脱水段包括楔形区域。 次级脱水部分邻近其下游的主要部分定位，并且包括s辊构型的带槽辊。 第三脱水部分包括剪刀压区构造的辊。 二级和三级部分的压辊都支撑在框架上。 无论何时在任何一个带槽辊或压辊组件上进行维护，例如可以使用起重机，因为在其顶部没有设置框架结构。

公开(公告)号：US20110139391A1

公开(公告)日：2011-06-16

申请号：US12653369

申请日：2009-12-10

Applicant: James Albertus Anema ,  Laurie David Wicks

Inventor： James Albertus Anema ,  Laurie David Wicks

IPC: D21F3/00

CPC classification number: D21F2/00 ,  D21F3/04 ,  D21F5/044

Abstract: A transfer apparatus is disclosed for transferring a light weight web from a dewatering section to a Yankee dryer. The transfer apparatus includes a looped transfer blanket which is disposed between the dewatering section and the Yankee dryer for supporting and transporting the web from the dewatering section towards the Yankee dryer. The dewatering section includes a press which defines a press nip for the passage therethrough of the web. The press nip assists in dewatering the web and guides the web. A press felt extends through the press nip and the transfer blanket also extends through the press nip. A roll is disposed downstream relative to the press nip for transferring the web from the transfer blanket and for guiding the web towards the Yankee dryer.

Abstract translation: 公开了一种用于将轻质网从脱水段传送到扬克烘缸的转印装置。 传送装置包括环形传送毯，其设置在脱水部分和扬克烘干机之间，用于将纸幅从脱水部分向扬基烘缸支撑和传送。 脱水部分包括压力机，该压力机限定了用于纸幅通过的压榨压区。 压榨夹帮助脱水网和引导网。 压榨毛毯延伸穿过压榨压区，转印毯也延伸穿过压榨压区。 辊子相对于压榨压区设置在下游，用于将纸幅从转印毯传送，并将纸幅向扬基烘缸引导。

公开(公告)号：US20090014143A1

公开(公告)日：2009-01-15

申请号：US11919976

申请日：2006-05-31

Applicant: Yasuhiko Kobayashi ,  Hiroyuki Takamura ,  Akira Onikubo

Inventor： Yasuhiko Kobayashi ,  Hiroyuki Takamura ,  Akira Onikubo

IPC: D21F3/08

CPC classification number: D21F3/04 ,  D21F3/0227 ,  D21F7/083

Abstract: In order to provide a smoothing press apparatus suitable to be applied to a closed draw type paper machine for allowing the surface of the wet paper to be smoothed and papermaking to be performed in a high speed,[Means for Achieving the Object] the smoothing press apparatus 100 is mounted on a last stage of the press part 11 of the closed draw type paper machine, and includes a smoothing press 17 having a pair of press rolls 23 and 25, a smoothing belt 27 interposed between the smoothing press 17 together with the wet paper W to smooth the surface of the wet paper, and a wet paper conveyer felt 21 for conveying the wet paper W and passing over it to the smoothing belt 27.

Abstract translation: 为了提供一种适用于封闭式拉丝式造纸机的平滑压榨装置，用于使湿纸的表面平滑并且高速进行造纸，实现平滑压榨的方法 装置100安装在封闭式抽取式造纸机的压榨部11的最后阶段，并且包括具有一对压榨辊23和25的平滑压榨机17，平滑皮带27插入在平滑压榨机17和 湿纸W使湿纸的表面平滑，以及用于输送湿纸W并将其通过平滑带27的湿纸传送带21。

公开(公告)号：US07306704B2

公开(公告)日：2007-12-11

申请号：US10964720

申请日：2004-10-15

Applicant: Kari Hyvönen

Inventor： Kari Hyvönen

IPC: D21F7/08

CPC classification number: D21F7/083 ,  D21F3/04 ,  D21F7/10 ,  Y10S162/90 ,  Y10S162/904 ,  Y10T442/20 ,  Y10T442/3707

Abstract: A method of manufacturing a press felt, a press section, and a press felt. The press felt comprises a base structure (11), a batt fibre layer (12) being attached to a first, web-side surface (B) of the base structure. Further, the structure of the press felt is compacted by treating it with a polymer material at least on the side of the first felt surface (B). After the polymer treatment, the surface of the felt is ground smooth.

Abstract translation: 压榨毛毯，压榨部和压榨毛毯的制造方法。 压榨毛毯包括基部结构（11），絮状纤维层（12）附接到基部结构的第一网状物侧表面（B）。 此外，通过用聚合物材料至少在第一毡表面（B）的一侧处理压榨毛毯的结构来压实。 聚合物处理后，毛毡的表面磨平。

公开(公告)号：US20070023155A1

公开(公告)日：2007-02-01

申请号：US10555773

申请日：2004-05-12

Applicant: Hidemasa Iijima ,  Takasi Bando ,  Hirosi Iwata ,  Daisuke Goto ,  Kotaro Shinoda

Inventor： Hidemasa Iijima ,  Takasi Bando ,  Hirosi Iwata ,  Daisuke Goto ,  Kotaro Shinoda

IPC: D21F3/04

CPC classification number: D21F3/04

Abstract: The present invention relates to a smoothing press for a paper machine and a press for a paper machine with a smoothing press as well as a paper production method. At a final stage of a press section (2) of a paper machine, wet web (1) with one face thereof retained by elastic members (13, 14) is pressed by the nip section of a pair of press rolls (12a, 12b) having a surface formed from a rigid material.

Abstract translation: 本发明涉及一种造纸机的平滑压榨机和具有平滑压榨机的造纸机的压力机以及造纸方法。 在造纸机的压榨部（2）的最后阶段，通过一对压榨辊（12a，2c）的夹持部分压榨由一个面由弹性部件（13,14）保持的湿纸幅（1） 12）具有由刚性材料形成的表面。

公开(公告)号：US06589390B1

公开(公告)日：2003-07-08

申请号：US09231672

申请日：1999-01-15

Applicant: Wolfgang Mayer

Inventor： Wolfgang Mayer

IPC: D21F1100

CPC classification number: D21F3/045 ,  D21F3/04

Abstract: Press section of a machine for producing a fiber material, web and process for guiding a fiber material web through the press section. The press section includes at least two double-felted presses arranged in series in a travel direction of the fiber material web. An upstream one of the at least two double-felted presses may include a deflection-controlled shoe press roll and a suction roll, and the deflection-controlled shoe press roll and the suction roll may be arranged to form an upstream press nip. The process may include guiding the fiber material web through a press nip of an upstream one of the at least two double-felted presses formed by a deflection-controlled shoe press roll and a suction roll.

Abstract translation: 用于生产纤维材料的织物的压榨部，织物和用于引导纤维材料纤维网通过压榨部的工艺。 压榨部包括在纤维材料纤维网的行进方向上串联布置的至少两个双层毡。 所述至少两个双层压榨机的上游侧可包括偏转控制的靴式压榨辊和抽吸辊，并且所述挠曲控制的靴式压榨辊和所述抽吸辊可以布置成形成上游压榨压区。 该方法可以包括引导纤维材料纤维网通过由偏转控制的靴形压榨辊和吸力辊形成的至少两个双层压榨机中的上游压榨辊的压榨压区。