公开(公告)号：US5586397A

公开(公告)日：1996-12-24

申请号：US229471

申请日：1994-04-18

申请人： Reima Kerttula ,  Jouko Yli-Kauppila

发明人： Reima Kerttula ,  Jouko Yli-Kauppila

IPC分类号： F26B13/10 ,  D21F5/04 ,  D21F5/16 ,  D21G7/00 ,  F26B3/00

CPC分类号： D21F5/04 ,  D21F5/042 ,  D21F5/048 ,  D21G7/00

摘要： A method and device for drying a paper web in a dryer section having a number of successive dryer groups with a single-wire draw, and being situated after a press section of the paper machine. Each dryer group includes contact-drying cylinders arranged in a first row and reversing suction cylinders or equivalent suction rolls arranged in a second row, the rows being horizontal, diagonal or vertical rows. The paper web is dried by contact-drying cylinders from the side of its lower face across the entire length of the dryer section. The paper web is passed as a closed draw from one dryer group to the next group, and the paper web is guided, while it runs on the drying wire at the side of the outside curve, by the reversing suction cylinders having a curve radius selected in a range from about 250 mm to about 1000 mm. The paper web is kept in constant contact with the drying wire as it is placed at the side of the outside curve, against the effect of centrifugal forces by a pressure difference which preferably extends over the entire inner circumference of the reversing suction cylinders. In addition to the above, or as an alternative, the paper web is dried from the side of its upper face on a draw or draws of the paper web that is/are free from the wire and/or a flow of drying air is applied to the upper face of the paper web through the drying wire and/or on the draws of the paper web that are free from the wire.

摘要翻译： 一种用于在具有多个连续干燥器组的干燥器部分中干燥纸幅的方法和装置，其具有单线牵引，并且位于造纸机的压榨部分之后。 每个干燥器组包括布置在第一排中的接触干燥筒和布置在第二排中的反向吸入缸或等效的吸入辊，所述行是水平的，对角线或垂直排。 纸幅通过接触干燥筒从其下表面的整个干燥部的整个长度干燥。 纸幅作为封闭的抽出通过一个干燥器组到下一个组，并且纸幅被引导，而其在外部曲线侧的干燥丝上运行，具有选择的曲线半径的反向抽吸圆筒 在约250mm至约1000mm的范围内。 当干燥线被放置在外部曲线的侧面时，纸幅与离心力的作用保持恒定的接触，该压力差优选地在反向吸入气缸的整个内周上延伸。 除了上述之外，或作为替代方案，纸幅从其上表面的一侧在绘图上进行干燥或者纸幅从纸上脱落和/或施加干燥空气流 通过干燥线和/或纸幅的不含导线的纸幅的纸幅的上表面。

公开(公告)号：US4919760A

公开(公告)日：1990-04-24

申请号：US218833

申请日：1988-07-13

申请人： Reima Kerttula

发明人： Reima Kerttula

IPC分类号： D21F9/02 ,  D21F9/00

CPC分类号： D21F9/003

摘要： A web former for a paper machine having a lower-wire loop which forms an initial single-wire part of a dewatering zone. The former also includes a top-wire unit which includes an upper wire which forms a twin-wire dewatering zone together with the lower wire. The former also includes a first forming roll in a direction of web travel that is provided with an open hollow face and is fitted inside the upper-wire loop. The twin-wire forming zone begins in conjunction with the first forming roll. There is a forming shoe inside the lower-wire loop which is provided with a curved deck that guides the lower-wire loop. The former includes a second forming roll fitted inside the upper wire loop and situated after the forming shoe. A device for collecting water is provided in the former and operates without any external suction source, with dewatering being based upon kinetic energy of water that is being removed and/or upon gravity.

公开(公告)号：US4888883A

公开(公告)日：1989-12-26

申请号：US178208

申请日：1988-04-06

申请人： Reima Kerttula

发明人： Reima Kerttula

IPC分类号： D21F5/04 ,  F26B13/08

CPC分类号： D21F5/04 ,  F26B13/08

摘要： A multiculer dryer in a paper machine, having several successive cylinder sections of which one or more are equipped with a twin-wire draw in a manner such that a web being dried is drawn unsupported between cylinder rows. A closed draw is used in section gaps in a manner such that a drawing or supporting wire of a preceding section is conveyed to contact a top cylinder of a following section at a small angle. A special section gap cylinder is used near the section gap, the cylinder either not being driven or which from a point of view of the drive, belongs to the preceding drying section. The drying wire of the preceding section is wound over the section gap cylinder, preferably over a sector greater than about 180.degree., this drying wire either being a single wire-wire draw drying wire or a top wire of a preceding section twin-wire draw. The web supported by the wire is guided as an essentially vertical run from the sector of the section gap cylinder to the top cylinder of the next section. There is an open space below the section gap cylinder which allows a waste web to be removed by gravity.

摘要翻译： 造纸机中的多辊干燥机，具有几个连续的圆筒部分，其中一个或多个部分装备有双网牵引，以使得被干燥的卷材在筒体之间被拉伸而不被支撑。 在截面间隙中使用封闭的抽头，以使得前面部分的拉丝或支撑线被输送以便以小角度接触后续部分的顶部圆柱体。 在截面间隙附近使用特殊的间隙气缸，气缸不被驱动，或者从驱动器的角度看，属于前一个干燥段。 前一部分的干燥线缠绕在截面间隙圆柱体上，优选地在大于约180度的扇区上，该干燥丝线是单线丝线牵引干燥线或前一部分双线牵引的顶部线 。 由电线支撑的网被引导为从部分间隙气缸的扇区到下一部分的顶部气缸的基本上垂直的运行。 在间隙气缸下面有一个开放空间，允许通过重力去除废料网。

公开(公告)号：US6126787A

公开(公告)日：2000-10-03

申请号：US40097

申请日：1998-03-17

申请人： Seppo Elijoki ,  Heikki Ilvespaa ,  Antti Kuhasalo ,  Reima Kerttula

发明人： Seppo Elijoki ,  Heikki Ilvespaa ,  Antti Kuhasalo ,  Reima Kerttula

IPC分类号： D21F5/04 ,  D21G1/00 ,  D21G9/00 ,  D21H25/06

CPC分类号： D21G9/009 ,  D21F5/04 ,  D21G1/00

摘要： A method for producing surface-treated paper, in particular of fine paper, and a dry end of a paper machine that makes use of the method. A paper web that has been dewatered by pressing is dried in the forward dryer section, in which drying energy is applied to the paper web over the entire length of the forward dryer section asymmetrically in the z-direction from the side of the bottom face of the web. This step is carried out by a number of successive groups with single-wire draw that are open downward. In this manner, shrinkage of the web both in the machine direction and in the cross direction is reduced or at least partially prevented, which shrinkage tends to take place when the dry solids content becomes higher. Paper broke is removed from underneath the drying groups that are open downward substantially by the force of gravity onto the broke conveyor placed underneath. The paper web which has a tendency of curling because of the asymmetric forward-drying is passed to the finishing section where it is finished while it is moistened and/or worked plastically so that the tendencies of curling that arose in the web in the forward drying stage are substantially reduced.

摘要翻译： 一种用于生产表面处理过的纸，特别是高级纸的方法，以及使用该方法的造纸机的干燥端。 已经通过压制脱水的纸幅在前部干燥部中被干燥，其中干燥能量在前方干燥部的整个长度上沿着Z方向从底面的侧面向z方向施加到纸幅上 网络。 该步骤由多个连续的组进行，其中单线绘制向下敞开。 以这种方式，幅材在机器方向和横向方向上的收缩被减少或至少部分地被防止，当干固体含量变高时，倾向于发生收缩。 干燥组下面基本上通过重力向下打开到放置在下面的破碎输送机上的干燥组下面，将纸张断开。 由于不对称的前向干燥而具有卷曲倾向的纸幅被传送到精加工部分，在其完成时，其被加湿和/或塑化加工，使得在正向干燥中在卷筒纸中产生的卷曲倾向 阶段大大减少。

公开(公告)号：US6003245A

公开(公告)日：1999-12-21

申请号：US64660

申请日：1998-04-22

申请人： Juha Lipponen ,  Martti Salminen ,  Juha Kaihovirta ,  Reima Kerttula

发明人： Juha Lipponen ,  Martti Salminen ,  Juha Kaihovirta ,  Reima Kerttula

IPC分类号： D21F5/04 ,  F26B3/00

CPC分类号： D21F5/04

摘要： A method and arrangement for evaporation drying of a paper web in which the web is dried in three successive stages I, II and III that are carried out in the direction of progress of the web as follows: in the first stage (I), the web is heated in a short section in the machine direction quickly to a temperature of 55.degree. C. to 85.degree. C. minimizing web breaks of the relatively moist and weak web, after the first stage (I), the main evaporation drying of the web is carried out so that the evaporation efficiency and the rate of increase in the dry solids content of the web are substantially higher than in the first stage or in the final stage (III), and the web temperature does not substantially rise while the drying proceeds, and in the final stage (III), the drying is continued with a decreasing evaporation efficiency and an average rate of increase in the dry solids content of the web in the machine direction which is lower than in the preceding stage (II) but higher than in a conventional cylinder drying with single-wire draw so that the paper quality is controlled at the same time.

摘要翻译： 纸幅的蒸发干燥的方法和装置，其中纸幅沿着幅材进给方向如下进行的连续三个阶段I，II和III被干燥：在第一阶段（I）中， 纤维网在机器方向上的短截面中快速加热至55℃至85℃的温度，使第一阶段（I）的第一阶段（I）之后的主蒸发干燥最小化相对湿和弱的纤维网的卷材断裂 进行纸幅，使得卷材的蒸发效率和干固体含量的增加速率明显高于第一阶段或最终阶段（III），并且在干燥时网幅温度基本上不上升 进行，在最终阶段（III）中，干燥继续，蒸发效率降低，幅材在机器方向的干固体含量的平均增加率低于前一阶段（II）但是 高于女修道院 单线拉丝，使纸张质量得到同时控制。

公开(公告)号：US5775001A

公开(公告)日：1998-07-07

申请号：US773273

申请日：1996-12-23

申请人： Reima Kerttula ,  Jouko Yli-Kauppila

发明人： Reima Kerttula ,  Jouko Yli-Kauppila

IPC分类号： F26B13/10 ,  D21F5/04 ,  D21F5/16 ,  D21G7/00 ,  D21F5/00

CPC分类号： D21F5/04 ,  D21F5/042 ,  D21F5/048 ,  D21G7/00

摘要： A method and device for drying a paper web in a dryer section having a number of successive dryer groups with a single-wire draw, and being situated after a press section of the paper machine. Each dryer group includes contact-drying cylinders arranged in a first row and reversing suction cylinders or equivalent suction rolls arranged in a second row, the rows being horizontal, diagonal or vertical rows. The paper web is dried by contact-drying cylinders from the side of its lower face across the entire length of the dryer section. The paper web is passed as a closed draw from one dryer group to the next group, and the paper web is guided, while it runs on the drying wire at the side of the outside curve, by the reversing suction cylinders having a curve radius selected in a range from about 250 mm to about 1000 mm. The paper web is kept in constant contact with the drying wire as it is placed at the side of the outside curve, against the effect of centrifugal forces by a pressure difference which preferably extends over the entire inner circumference of the reversing suction cylinders. In addition to the above, or as an alternative, the paper web is dried from the side of its upper face on a draw or draws of the paper web that is/are free from the wire and/or a flow of drying air is applied to the upper face of the paper web through the drying wire and/or on the draws of the paper web that are free from the wire.

公开(公告)号：US5611892A

公开(公告)日：1997-03-18

申请号：US319164

申请日：1994-10-06

申请人： Mikko Karvinen ,  Reima Kerttula ,  Jorma Laapotti ,  Juhani Pajula

发明人： Mikko Karvinen ,  Reima Kerttula ,  Jorma Laapotti ,  Juhani Pajula

IPC分类号： D21F3/04 ,  D21F7/00

CPC分类号： D21F3/04 ,  D21F7/001

摘要： A closed press section in a paper machine including a compact combination of press rolls, some of which define press nips with each other between which the web has a closed draw supported by the face of a fabric. The press section has a center roll in connection with which at least one press nip is formed. A closed loop of a transfer band is passed around the center roll. The web is transferred on an outer face of the transfer band after the last press nip in the compact combination of rolls as a closed and constantly supported draw onto a drying wire in a drying section following after the press section. The transfer band loop is preferably made of a fabric that substantially does not receive water and does not rewet the web. The web-adhesion properties of the outer face of the transfer band are chosen so that, after the last nip, the web follows the transfer band, and so that the web can be transferred as a fully closed draw onto the drying wire. In connection with the loop of the transfer band, means for conditioning/cleaning the band and/or safety devices are provided, by whose means an adequate operation of the transfer band is maintained.

摘要翻译： 一种造纸机中的封闭压榨部，包括压榨辊的紧凑组合，其中一些压榨辊彼此限定压榨辊，纤维网之间具有由织物的表面支撑的封闭的牵伸。 压榨部具有与其形成至少一个压榨压区的中心辊。 传送带的闭环绕中心辊。 在紧密组合的辊之间的最后一个压榨辊隙之后，将纸幅作为封闭且持续支撑的牵引力转印到转印带的外表面上，在牵引部之后的干燥部分中的干燥丝线上。 转移带环优选由基本上不接收水并且不再润湿网的织物制成。 选择转移带的外表面的网粘附性能，使得在最后压区之后，幅材跟随转印带，并且使得幅材可以作为完全封闭的拉丝转印到干燥丝上。 结合传送带的环路，提供用于调节/清洁带和/或安全装置的装置，通过它们的手段保持传送带的适当的操作。

公开(公告)号：US06428655B1

公开(公告)日：2002-08-06

申请号：US09719400

申请日：2000-12-08

申请人： Reima Kerttula

发明人： Reima Kerttula

IPC分类号： D21F902

CPC分类号： D21F9/006 ,  D21F5/00

摘要： The invention concerns an integrated paper machine, which comprises, in the running direction of the web, a multi-layer headbox (100), a gap former (200), in which there is at least one pre-press (303, 304), a press section (300), in whcih there is at least one extended-nip press (308, 309), a pre-dryer section (400), in which the web (W) is dried by means of a high-capacity dryer unit, a dryer section (500), in which there is at least one dryer group (R1, R2, R3) which makes use of single-wire draw, as well as a surface treatment device (P) for the web. Further, the paper machine is provided with a closed web draw at least to the end of the dryer section (500).

摘要翻译： 本发明涉及一种综合造纸机，其包括在幅材的运行方向上的多层流浆箱（100），间隙成形器（200），其中存在至少一个预压机（303,304） ，压榨部（300），其中至少有一个延伸压区压机（308,309），预干燥器部分（400），其中纸幅（W）通过高容量 干燥器单元，干燥部（500），其中存在使用单丝拉伸的至少一个干燥器组（R1，R2，R3）以及用于卷材的表面处理装置（P）。 此外，造纸机至少在干燥部（500）的端部设置有封闭的卷材。

公开(公告)号：US5862613A

公开(公告)日：1999-01-26

申请号：US67750

申请日：1998-04-28

申请人： Reima Kerttula ,  Jouko Yli-Kauppila

发明人： Reima Kerttula ,  Jouko Yli-Kauppila

IPC分类号： F26B13/10 ,  D21F5/04 ,  D21F5/16 ,  D21G7/00 ,  D21F5/00

CPC分类号： D21F5/04 ,  D21F5/042 ,  D21F5/048 ,  D21G7/00

摘要： A method and device for drying a paper web in a dryer section having a number of successive dryer groups with a single-wire draw, and being situated after a press section of the paper machine. Each dryer group includes contact-drying cylinders arranged in a first row and reversing suction cylinders or equivalent suction rolls arranged in a second row, the rows being horizontal, diagonal or vertical rows. The paper web is dried by contact-drying cylinders from the side of its lower face across the entire length of the dryer section. The paper web is passed as a closed draw from one dryer group to the next group, and the paper web is guided, while it runs on the drying wire at the side of the outside curve, by the reversing suction cylinders having a curve radius selected in a range from about 250 mm to about 1000 mm. The paper web is kept in constant contact with the drying wire as it is placed at the side of the outside curve, against the effect of centrifugal forces by a pressure difference which preferably extends over the entire inner circumference of the reversing suction cylinders. In addition to the above, or as an alternative, the paper web is dried from the side of its upper face on a draw or draws of the paper web that is/are free from the wire and/or a flow of drying air is applied to the upper face of the paper web through the drying wire and/or on the draws of the paper web that are free from the wire.

摘要翻译： 一种用于在具有多个连续干燥器组的干燥器部分中干燥纸幅的方法和装置，其具有单线牵引，并且位于造纸机的压榨部分之后。 每个干燥器组包括布置在第一排中的接触干燥筒和布置在第二排中的反向吸入缸或等效的吸入辊，所述行是水平的，对角线或垂直排。 纸幅通过接触干燥筒从其下表面的整个干燥部的整个长度干燥。 纸幅作为封闭的抽出通过一个干燥器组到下一个组，并且纸幅被引导，而其在外部曲线侧的干燥丝上运行，具有选择的曲线半径的反向抽吸圆筒 在约250mm至约1000mm的范围内。 当干燥线被放置在外部曲线的侧面时，纸幅与离心力的作用保持恒定的接触，该压力差优选地在反向吸入气缸的整个内周上延伸。 除了上述之外，或作为替代方案，纸幅从其上表面的一侧在绘图上进行干燥或者纸幅从纸上脱落和/或施加干燥空气流 通过干燥线和/或纸幅的不含导线的纸幅的纸幅的上表面。

公开(公告)号：US5603806A

公开(公告)日：1997-02-18

申请号：US456800

申请日：1995-06-01

申请人： Reima Kerttula

发明人： Reima Kerttula

IPC分类号： D21F1/08 ,  D21F7/06 ,  D21G9/00

CPC分类号： D21G9/0027 ,  D21F1/08 ,  D21F7/06 ,  Y10S162/11

摘要： A method and apparatus for lateral alignment of a cross-direction profile control of a web as required in a paper-making process. In the method, a certain cross-direction profile of a dried web, particularly the basis weight profile thereof, to be aligned is gauged. A profile measurement signal thus obtained is passed to a control system of the paper machine which provides a control signal suited to control adjustment devices of the cross-direction profile control provision. The web is provided with at least one marker line whose lateral shift or shifts is/are detected at the measurement point of the cross-direction profile of the dried web, or in the vicinity thereof. The detection of the lateral shift(s) is used to generate a measurement signal thereof which is employed to control the lateral alignment of the web profile adjustment provision. The information obtained from the detected lateral shift(s) then used in the control of the lateral alignment of the consistency profile control provision adapted in conjunction with the paper machine headbox. The marker agent used to make the marker line is injected to the stock at the inlet side of the stock feed channel to the paper machine headbox, most advantageously close to the control valve set of the consistency profile control provision.

摘要翻译： 用于在造纸过程中根据需要在幅材的横向分布控制的横向对准的方法和装置。 在该方法中，测量待对准的干燥纤维网的特定横截面轮廓，特别是其基重分布。 如此获得的轮廓测量信号被传递到造纸机的控制系统，其提供适于控制横向轮廓控制提供的调节装置的控制信号。 该幅材设置有至少一个标记线，其在干燥幅材的横向轮廓的测量点或其附近检测到横向偏移或偏移。 横向偏移的检测用于产生其测量信号，用于控制幅材轮廓调整提供的横向对准。 从检测到的侧向偏移获得的信息然后用于控制与造纸机流浆箱相结合的稠度轮廓控制设置的横向对准。 用于制造标记线的标记剂被注入到进料通道的入口侧的坯料到造纸机流浆箱，最有利地靠近一致性分布控制设置的控制阀组。