公开(公告)号：US5653041A

公开(公告)日：1997-08-05

申请号：US360224

申请日：1994-12-20

申请人： Antti Ilmarinen ,  Antti Kuhasalo ,  Pertti Heikkila ,  Heikki Ilvespaa ,  Jouko Yli-Kauppila ,  Ilkka Jokioinen ,  Matti Korpela ,  Mikko Karvinen ,  Pekka Taskinen ,  Henrik Petterson ,  Vaino Sailas ,  Dick Parker

发明人： Antti Ilmarinen ,  Antti Kuhasalo ,  Pertti Heikkila ,  Heikki Ilvespaa ,  Jouko Yli-Kauppila ,  Ilkka Jokioinen ,  Matti Korpela ,  Mikko Karvinen ,  Pekka Taskinen ,  Henrik Petterson ,  Vaino Sailas ,  Dick Parker

IPC分类号： D21F5/04 ,  D21F5/18 ,  F26B11/02

CPC分类号： D21F5/184 ,  D21F5/042 ,  D21F5/044 ,  D21F5/182

摘要： A method and device for drying a paper web wherein the paper web is supported on a drying wire without long open draws of the web. The paper web is contact-dried by pressing it with the drying wire onto a face of a contact-drying cylinder whose diameter is greater than about 1.5 m on a sector b whose magnitude is greater than about 180.degree.. The web is evaporation-dried as blowing-on drying and/or as through-drying by means of high-velocity drying-gas jets applied to the web on the drying wire on the face of the following large-diameter cylinder whose diameter is greater than about 2 m on a sector a having a magnitude greater than about 180.degree. while the web is on the side of the outside curve. The web to be dried is passed over a sector c of the suction roll which is subjected to negative pressure while the web is supported on the drying wire at the side of the outside curve. The magnitude of the sector of the suction roll has a magnitude greater than about 160.degree. and the diameter of the suction roll is less than the diameter of the contact-drying cylinder.

摘要翻译： 一种用于干燥纸幅的方法和装置，其中纸幅被支撑在干燥丝上，而不需要幅材的长时间打开。 通过用烘干线将纸幅通过其直径大于约1.5μm的接触干燥筒的面积大于约180度的扇区b将其接触干燥。 通过在直径较大的以下大直径圆筒的表面上的干燥丝上施加到幅材上的高速干燥气体喷嘴，将幅材蒸发干燥和/或通过干燥 在幅材大于约180度的扇区a上大于约2μm，而幅材位于外曲线侧。 待干燥的纸幅通过负压的吸辊的扇形部分c，同时将纸幅支撑在外侧曲线侧的干燥丝线上。 吸辊的扇形体的大小具有大于约160°的大小，并且吸辊的直径小于接触干燥筒的直径。

公开(公告)号：US5199623A

公开(公告)日：1993-04-06

申请号：US694799

申请日：1991-05-02

申请人： Raimo Rajala ,  Jukka Parvinen ,  Bertel Karlstedt ,  Pertti Heikkila ,  Ilkka Jokioinen

发明人： Raimo Rajala ,  Jukka Parvinen ,  Bertel Karlstedt ,  Pertti Heikkila ,  Ilkka Jokioinen

IPC分类号： B65H23/24 ,  F26B13/20

CPC分类号： F26B13/104 ,  B65H23/24 ,  B65H2406/111

摘要： A device for contact-free supporting, turning, and spreading of a paper web, comprises a face (K) curved in accordance with the turning of the web (W), in connection with which face (K) the web (W) runs supported by air blown in between the face (K) and the web (W). The nozzle members in the device comprise guide faces (28a, 28b) and carrier faces (27, 37) placed in connection with the guide faces, air being blown through nozzle slots (26a,26b,36) in the nozzle members, transverse to the direction of running of the web (W), onto the carrier faces (27,37). The nozzle slots (26a,26b,36) are, from one side, defined by the guide faces (28,28b,38). The air-supported face (K) in the device is defined by carrier faces (27,37) substantially parallel to the run of the web (W) to be supported, provided at float-nozzle boxes (20) and at foil-nozzle boxes (30). In the direction of running of the web (W), the first nozzle box and the last nozzle box are float-nozzle boxes (20), in which the nozzles (26a,26b) that flow (F.sub.1) against each other produce pressurized carrier faces (K+). Between the float-nozzle boxes (20), there are one or several foil-nozzle boxes (30). Between the nozzle boxes (20,30), there are pressure equalization pockets (18).

摘要翻译： 一种用于无接触地支撑，转动和扩展纸幅的装置包括与纸幅（W）的转动一起弯曲的面（K），与纸幅（W）运行的面（K）相关联 由在面（K）和腹板（W）之间吹动的空气支撑。 装置中的喷嘴构件包括与导向面相连接的引导面（28a，28b）和载体面（27,37），空气通过喷嘴构件中的喷嘴孔（26a，26b，36）吹送，横向于 纸幅（W）的运行方向到载体面（27,37）上。 喷嘴槽（26a，26b，36）从一侧由引导面（28,28b，38）限定。 装置中的空气支撑面（K）由基本上平行于待浮动的腹板（W）的行程的载体面（27,37）限定，设置在浮子喷嘴箱（20）和箔喷嘴 盒（30）。 在卷筒纸（W）的运行方向上，第一喷嘴箱和最后一个喷嘴箱是浮子喷嘴箱（20），其中彼此流动（F1）的喷嘴（26a，26b）产生加压载体 面（K +）。 在浮子喷嘴箱（20）之间，有一个或多个箔喷嘴盒（30）。 在喷嘴箱（20,30）之间，存在压力均衡袋（18）。

公开(公告)号：US4918828A

公开(公告)日：1990-04-24

申请号：US261161

申请日：1988-10-21

申请人： Reijo Ruottu ,  Raimo Rajala ,  Ilkka Jokioinen ,  Sture Ahlskog

发明人： Reijo Ruottu ,  Raimo Rajala ,  Ilkka Jokioinen ,  Sture Ahlskog

IPC分类号： B05C9/14 ,  D21F5/00 ,  D21F5/16 ,  F26B3/28 ,  F26B13/02 ,  F26B13/20

CPC分类号： F26B13/104 ,  D21F5/002 ,  F26B3/283

摘要： Apparatus for drying a moving web includes a first infrared dryer unit having a first infrared treatment gap, a gas-support unit situated substantially immediately after the first infrared dryer unit and having a gas-support unit gap into which web-supporting gas blowings are directed, and a second infrared dryer unit situated after the gas-support unit and having a second infrared treatment gap. The gas-support gap has a width which is less than the width of the first infrared gap and the width of the second infrared treatment gap is less than the width of the first infrared treatment gap and greater than the width of the gas-support gap. In accordance with the method, the web is passed through the first infrared treatment gap so that upon exiting from the gap, its temperature has preferably been raised only to a point where evaporation of water from the web is imminent but has not begun, whereupon the web is passed through the gas-support gap in which web-supporting gas blowings, preferably heated, are directed in regions of both sides of the web, whereupon the web is passed through the second infrared treatment gap where evaporative drying is accomplished.

摘要翻译： 用于干燥移动幅材的设备包括具有第一红外处理间隙的第一红外干燥器单元，基本上位于第一红外干燥器单元之后并具有气体支撑单元间隙的气体支撑单元，其中支撑有支撑气体的气体引导 以及位于气体支撑单元之后并且具有第二红外线处理间隙的第二红外干燥器单元。 气体支撑间隙的宽度小于第一红外线间隙的宽度，第二红外线处理间隙的宽度小于第一红外线处理间隙的宽度，大于气体支持间隙的宽度 。 根据该方法，纤维网通过第一红外线处理间隙，使得在从间隙离开时，其温度优选仅升高到来自网的水的蒸发即将到来但尚未开始的点，因此， 纤维网通过气体支撑间隙，其中优选加热的网状物支撑气体吹送被引导到幅材两侧的区域中，于是纤网通过完成蒸发干燥的第二红外处理间隙。

公开(公告)号：US5471766A

公开(公告)日：1995-12-05

申请号：US334210

申请日：1994-11-04

申请人： Pertti Heikkila ,  Ilkka Jokioinen

发明人： Pertti Heikkila ,  Ilkka Jokioinen

IPC分类号： F26B13/20 ,  F26B13/00 ,  F26B3/00

CPC分类号： F26B13/104

摘要： The invention relates to a method for air-drying material webs, in particular material webs of relatively high grammage such as pulp webs. The invention also relates to a nozzle-blow-box and a pulp dryer that make use of the method. Air blowings in a direction substantially perpendicular to the web and air blowings in a direction substantially parallel to the plane of the web are applied to the web to be dried from underneath the web. By means of these blowings, both heat is transferred to the web and the web is supported by the air free of contact, and the run of the web through the dryer is stabilized. In order to improve the transfer of heat in comparison with a planar carrier face, the air flow velocity parallel to the plane of the web is initially kept substantially invariable. The air flow velocity is lowered in the lateral areas of the carrier face by employing lateral areas of the nozzle-carrier face that become rampwise and/or stepwise lower in the air-flow direction.

摘要翻译： 本发明涉及一种用于空气干燥材料幅材的方法，特别是具有较高克重的材料幅材如纸浆幅材。 本发明还涉及利用该方法的喷嘴吹风箱和纸浆干燥器。 在基本上垂直于纸幅的方向上的空气吹塑和在基本上平行于幅材的平面的方向上的空气吹送从幅材下面施加到待干燥的幅材上。 通过这些吹塑，两个热量被转移到幅材上，并且纤维网被空气不受接触支撑，并且通过干燥器的纤维网的运行是稳定的。 与平面载体面相比，为了改善热传递，初始保持平行于幅材平面的气流速度基本上不变。 通过使喷嘴载体面的横向区域在空气流动方向上变成斜坡和/或逐步降低，使得气流速度在载体面的横向区域中降低。