公开(公告)号：US4542593A

公开(公告)日：1985-09-24

申请号：US584340

申请日：1984-02-28

申请人： Olavi Viitanen ,  Reima Kerttula

发明人： Olavi Viitanen ,  Reima Kerttula

IPC分类号： D21F5/02 ,  F26B13/18

CPC分类号： D21F5/021

摘要： Apparatus for increasing the turbulence of a condensate layer formed on the inner surface of a mantle of a drying cylinder for use in the drying seciton of a paper machine to improve its heat transfer characteristics include a plurality of turbulence ribs atached to the inner mantle surface by a plurality of attachment bands, each attachment band being constituted by an assembly of at least three band parts. Spring devices are associated with pairs of adjacent free ends of the band parts of each attachment band to urge the adjacent free ends away from each other. The spring devices are tensioned by tensioning devices and the turbulence ribs are attached to the bands, which are preferably evenly space throughout the axial length of the mantle, by corresponding projections and cavities. The apparatus is installed according to a method wherein the band parts are inserted through an access opening provided in the drying cylinder mantle whereupon the attachment bands are assembled from the band parts within the cylinder mantle. The spring devices of at least one central attachment band are tensioned at a higher tensioning force than the other lateral bands.

摘要翻译： 用于增加用于造纸机干燥段的烘缸的内表面上形成的冷凝层的湍流以提高其传热特性的装置包括多个湍流肋，其通过 多个连接带，每个连接带由至少三个带部分组成。 弹簧装置与每个连接带的带部分的相邻的自由端的对相关联，以将相邻的自由端推离彼此。 弹簧装置通过张紧装置张紧，并且湍流肋被附接到带，优选地通过相应的突起和空腔在罩的整个轴向长度上均匀地间隔开。 该装置根据一种方法安装，其中带部件通过设置在干燥筒罩中的进入开口插入，随后从气缸套中的带部件组装附接带。 至少一个中心连接带的弹簧装置以比其他横向带更高的张紧力张紧。

公开(公告)号：US4684443A

公开(公告)日：1987-08-04

申请号：US727444

申请日：1985-04-26

申请人： Reima Kerttula ,  Olavi Viitanen

发明人： Reima Kerttula ,  Olavi Viitanen

IPC分类号： D21F7/00 ,  B65H20/14 ,  D21G9/00 ,  D21F1/42 ,  D21F7/04

CPC分类号： D21G9/0072

摘要： An improvement in apparatus for guiding a web leader from a press section to a drying section of a paper machine, the apparatus including flexible guide ropes forming a gap into which the leader is shifted, an initial air blow device for guiding the leader towards the drying wire of the drying section, a first blow member for detaching the leader from the drying wire and a second blow member for applying transversely directed air jets onto the leader to shift it into the gap formed by the guide ropes. According to the improvement, the second air blow device includes a blow member which is mounted for pivotal movement between a non-operating lateral position outside of the edge of the drying wire and an operative position in opposed relationship thereto. One or more nozzle openings are formed in the blow member of the second air blow device for applying the transversely directed air jets onto the web leader when the blow member is in the operating position to shift the web leader into the gap formed by the guide ropes. The improvement of the invention is lightweight, requires little space and can advantageously be provided with automatic controls so that the web leader can be guided from the press section to the drying section in a completely automatic operation.

摘要翻译： 用于将纸幅引导件从压榨部引导到造纸机的干燥部的装置的改进，所述装置包括形成有引导件移动到其中的间隙的柔性引导绳索，用于引导引导件朝向干燥的初始吹气装置 干燥部分的线，用于将引导件从干燥线分离的第一吹塑构件和用于将横向定向的空气射流施加到引导件上以将其移动到由引导绳形成的间隙中的第二吹塑构件。 根据改进，第二吹气装置包括吹风构件，其被安装用于在干燥线的边缘外侧的非操作横向位置和与其干涉的相对关系的操作位置之间枢转运动。 一个或多个喷嘴开口形成在第二吹气装置的吹塑构件中，用于当吹塑构件处于操作位置时将横向定向的空气射流施加到幅材引导件上，以将幅材引导件移动到由引导绳索形成的间隙中 。 本发明的改进是轻质的，需要很小的空间并且可以有利地设置有自动控制，使得卷筒纸引导件能够在完全自动的操作中从压榨部分引导到干燥部分。

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。