公开(公告)号：US4807371A

公开(公告)日：1989-02-28

申请号：US126547

申请日：1987-11-30

申请人： Gregory L. Wedel

发明人： Gregory L. Wedel

IPC分类号： D21F20060101 ,  D21F5/04 ,  D21F5/14 ,  D21G9/00 ,  F26B13/08

CPC分类号： D21F5/04 ,  D21F5/042 ,  D21G9/0063

摘要： An apparatus is described for maintaining a first and second lateral edge of web in close conformity with a dryer felt of a papermaking machine. The apparatus includes a first dryer drum which is rotatable about an axis which is parallel to the cross-machine direction of the web. A second dryer drum is rotatable about an axis which is spaced and parallel relative to the axis of the first dryer drum. An intermediate transfer roll has an axis of rotation disposed in a plane parallel to, and between, the axes of the first and second drums such that the web and the felt extend contiguously around the first dryer drum and then around the transfer roll and subsequently around the second drum in a serpentine configuration so that the transfer roll and the felt define therebetween a pocket. A first and second box are disposed within the pocket and adjacent to, respectively, the first and second lateral edges of the web for maintaining a partial vacuum within the pocket adjacent to the respective lateral edges such that the edges are drawn into close conformity with the felt which is disposed between the web and the boxes thereby inhibiting detachment of the respective lateral edges from the felt and subsequent wrinkling of the dried web.

摘要翻译： 描述了一种用于维持幅材的第一和第二侧边缘与造纸机的烘干机毡紧密一致的装置。 该设备包括可围绕平行于幅材的横向方向的轴线旋转的第一干燥器鼓。 第二干燥器鼓可绕相对于第一干燥器滚筒的轴线间隔开并平行的轴线旋转。 中间转印辊具有旋转轴线，其设置在平行于第一和第二滚筒的轴线之间的平面内，并且在第一和第二滚筒的轴线之间，并且在该第一和第二滚筒的轴线之间，并且在该第一和第二滚筒的轴线之间， 所述第二滚筒是蛇形结构，使得所述传送辊和所述毡在其间限定一个袋。 第一和第二箱子分别设置在袋内并且分别与幅材的第一和第二侧边缘相邻，用于维持邻近相应侧边缘的凹槽内的部分真空，使得边缘被拉伸成与 毛毡被设置在卷材和盒子之间，从而阻止相应的侧边缘从毛毡脱离并随后干燥的卷材起皱。

公开(公告)号：US4716660A

公开(公告)日：1988-01-05

申请号：US847671

申请日：1986-04-03

申请人： Eric W. Thiele

发明人： Eric W. Thiele

IPC分类号： D21F1/00 ,  D21F5/04 ,  F26B13/08

CPC分类号： D21F5/042 ,  B65H2601/211

摘要： A unifelt system for drying paper includes banks of upper and lower drying cylinders around which the paper is conveyed in contact with a support sheet. At least one suction nozzle is provided at the pocket formed at the upstreammost lower cylinder and the support sheet to prevent air from being trapped between the paper and the support sheet for minimizing bulging which might otherwise occur.

公开(公告)号：US4625434A

公开(公告)日：1986-12-02

申请号：US473447

申请日：1983-03-09

申请人： Ingemar Karlsson ,  Karl-Hugo Andersson ,  Rolf Petersson

发明人： Ingemar Karlsson ,  Karl-Hugo Andersson ,  Rolf Petersson

IPC分类号： D21F5/04 ,  F26B13/08

CPC分类号： D21F5/042

摘要： The invention relates to an arrangement in cylinder drying, intended for incorporation in a paper machine and including a plurality of heated cylinders (1) arranged substantially parallel in two rows, about which the paper web (2) is taken serpentine during drying, whereat it is carried by an endless porous fourdrinier wire (3) which presses the web against the cylinder surfaces in one row of cylinders and lies between the paper web and the cylinders in the other row. For preventing the web from lifting from the wire as a result of pressure differences on either side thereof, there are blowing boxes (11,12) arranged for blowing out air in at least some of the pockets (4,5) situated on opposite sides of the web, each of said pockets being formed by the web and three cylinders lying consecutively in the travelling direction of the web. Blowing out from the blowing boxes takes place in directions such that a sub-pressure is generated in the pockets (4) where the wire (3) lies outmost towards the pocket, and an excess pressure generated in the pockets (5) where the paper web (2) lies outmost towards the pocket.

摘要翻译： 本发明涉及圆筒干燥中的装置，其用于结合在造纸机中，并且包括多个基本上平行布置成两排的加热滚筒（1），纸幅（2）在其干燥期间被卷绕成蛇形，其中它 由连续的多孔长网线（3）承载，该网将网卷压在一排圆柱体中的圆筒表面上，并位于纸幅和另一排中的圆柱体之间。 为了防止由于其任一侧上的压力差导致卷材从网中提起，布置有用于在位于相对侧的至少一些凹穴（4,5）中吹出空气的吹风箱（11,12） 每个所述凹穴由所述腹板和所述腹板的行进方向上的三个圆筒形成。 从吹风箱吹出的方向是在方向上发生的，使得在电线（3）最靠近口袋的位置处的凹穴（4）中产生副压力，并且在袋（5）中产生的过量压力，其中纸张 网（2）最靠近口袋。

公开(公告)号：US4551203A

公开(公告)日：1985-11-05

申请号：US595969

申请日：1984-04-02

申请人： Pekka Eskelinen

发明人： Pekka Eskelinen

IPC分类号： D21F2/00 ,  D21F5/04 ,  D21G9/00 ,  D21F11/00 ,  D21F3/00 ,  D21F5/00

CPC分类号： D21F5/042 ,  D21F2/00 ,  D21G9/0063

摘要： Apparatus and method for guiding a fibrous web from a press section to a drying section, such as guiding a paper web from the press section to the drying section in a paper-making machine. The apparatus comprises a fetching roll adapted to guide the web passing from the press section onto a drying wire from the drying section passing about the fetching roll, and means for urging the web and drying wire against one another as the web is passed to the drying section, this urging means disposed between the fetching roll and the drying section in a running direction of the web and wire. The method of the present invention comprises passing the web from the press section onto a drying wire passing about a fetching roll, and urging the web and drying wire against each other as the drying wire passes from the fetching roll to the drying section.

摘要翻译： 将纤维网从压榨部引导到干燥部的装置和方法，例如在造纸机中将纸幅从压榨部引导到干燥部。 该装置包括取出辊，其适于引导从压榨部通过围绕取出辊的干燥部分的烘干线上的纸幅，以及当纸幅通过干燥时将纸幅和干燥丝相互推压的装置 该推压装置沿着卷材和丝线的运行方向设置在取出辊和干燥部之间。 本发明的方法包括将纤维网从压榨部通过到通过取出辊的干燥线上，并且随着干燥线从取出辊通过干燥部而将纤维网和干燥线彼此推压。

公开(公告)号：US4510698A

公开(公告)日：1985-04-16

申请号：US447701

申请日：1982-12-07

申请人： Donald A. Ely

发明人： Donald A. Ely

IPC分类号： D21F5/00 ,  D21F1/00 ,  D21F5/04 ,  F26B13/08

CPC分类号： D21F5/04 ,  D21F5/042

摘要： A web dryer structure for thermal removal of liquid from a traveling web such as a web of paper coming from the press section of a papermaking machine including a row of upper dryer drums and a row of lower dryer drums with the drums positioned to carry the web in a sinuous path successively between upper and lower drums and the web wrapping the upper and lower surfaces of the drums respectively with upper and lower looped felts wrapping the web on the upper and lower surfaces of the drums with the felt guided by felt rolls which for the upper felt is beneath lower drums and for the lower felts are between the upper drums with the felt rolls being hollow roll shells and having glands therein divided so that a first portion of the felt roll faces the onrunning web and a second portion faces the offrunning web with the vacuum means and pressure means connected to the interior of the felt rolls so that one portion is subjected to a vacuum, and the other portion is subjected to a pressure, and the arrangement accommodates running the web in either direction without the necessity to have any open unsupported travel of the web.

摘要翻译： 一种纸幅干燥器结构，用于从诸如从造纸机的压榨部分移动的行进纸幅的纸幅热去除液体，所述造纸机包括一排上干燥器滚筒和一排下干燥器滚筒，所述滚筒定位成承载所述卷材 在上下鼓之间的连续路径和卷筒纸的上表面和下表面之间连续卷曲的卷筒纸，上，下环状毛毡分别用毡辊引导的毡卷绕在卷筒的上表面和下表面上， 上毛毡位于下鼓下方，并且下毛毡位于上滚筒之间，毛毡辊是中空辊壳，并且其中分开有压盖，使得毛毡辊的第一部分面向移动幅材，第二部分面向超越 腹板与真空装置和压力装置相连，连接到毛毡辊的内部，使得一部分经受真空，另一部分受到压力， 并且该布置适应在任一方向上运行卷筒纸，而不必具有卷筒纸的任何开放的不受支撑的行进。

公开(公告)号：US4359827A

公开(公告)日：1982-11-23

申请号：US234288

申请日：1981-02-17

申请人： Keith V. Thomas

发明人： Keith V. Thomas

IPC分类号： D21F5/04 ,  F26B3/24

CPC分类号： D21F5/042 ,  D21F5/04

摘要： An improved paper drying process and machine are described in which the paper web is supported independently of velocity-induced stresses thus permitting operation at speeds significantly in excess of the prior art for each paper grade. The process requires: (1) transporting the web on a supporting fabric that travels from the last press nip through at least the initial portion of a drying section; and (2) holding the web onto its supporting fabric by employing forces normal to the major web surfaces sufficient to overcome those forces which tend to lift the web from its supporting fabric. The web on its supporting fabric travels a serpentine path through the drying section about drying cylinders with the web alternating between direct contact with a drying cylinder followed by indirect contact with the subsequent cylinder. The principal holding forces are preferably pressure differentials created by vacuum boxes arranged to effectively hold the web to its supporting fabric on all portions of the web-fabric combination where the web is not in direct wrapping contact with the drying cylinders. The fabric supports the web at least until the web has attained sufficient strength through increased dryness to resist breaking stresses at the selected machine speed. The products made by the process of this invention possess a unique toughness or stretchability not found in conventionally prepared papers that have been strained or stretched during manufacture. Processes and machine arrangements designed to balance stretchability with certain desirable stiffness properties are disclosed. Pulp furnishes may now be selected for their contribution to product qualities, such as higher finished product tensile strength, rather than principally for wet strength. For example, chemical pulps may be significantly reduced or eliminated from newsprint furnishes where their purpose has been principally to permit economic paper machine speeds. The invention makes attainable speeds approaching twice current operating levels for each paper grade.

公开(公告)号：US1283889A

公开(公告)日：1918-11-05

申请号：US17873017

申请日：1917-07-05

申请人： GREAT NORTHERN PAPER CO

发明人： POPE CHARLES E

CPC分类号： D21F5/042 ,  Y10S271/90

公开(公告)号：US1246945A

公开(公告)日：1917-11-20

申请号：US9152316

申请日：1916-04-17

申请人： GREAT NORTHERN PAPER CO

发明人： SCHENCK GARRET

CPC分类号： D21F5/042

公开(公告)号：US1104759A

公开(公告)日：1914-07-21

申请号：US1913777600

申请日：1913-07-05

申请人： SHEAHAN WILLIAM

发明人： SHEAHAN WILLIAM

CPC分类号： D21F5/042

公开(公告)号：US08118977B2

公开(公告)日：2012-02-21

申请号：US12393610

申请日：2009-02-26

申请人： Wolfgang Denk ,  Norbert Karner

发明人： Wolfgang Denk ,  Norbert Karner

IPC分类号： D21F5/02 ,  F26B13/18

CPC分类号： D21F5/04 ,  D21F5/042 ,  D21G9/0063

摘要： An apparatus for handling a moving material web includes: a treatment unit including a rotating conveyor belt which forms a closed loop and carries the material web; a second treatment unit with a second conveyor belt which also forms a closed loop, both treatment units being connected parallel relative to each other; a first switch-over for the transfer of the web from the first to the second conveyor belt; and a second switch-over unit for the transfer of the web from the second to the first conveyor belt.

摘要翻译： 一种用于处理移动材料幅材的装置，包括：处理单元，包括形成闭合回路并承载材料幅的旋转输送带; 第二处理单元，其具有也形成闭环的第二输送带，两个处理单元彼此平行地连接; 用于将纸幅从第一传送带传送到第二传送带的第一切换; 以及用于将纸幅从第二传送带传送到第一传送带的第二切换单元。