公开(公告)号：US5495678A

公开(公告)日：1996-03-05

申请号：US201555

申请日：1994-02-24

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

发明人： Antti Ilmarinen ,  Heikki Ilvespaa/ ,  Antti Kuhasalo ,  Jouko Yli-Kauppila ,  Pertti Heikkila/ ,  Iikka Jokioinen ,  Matti Korpela ,  Henrik Petterson ,  Mikko Karvinen ,  Va/ ino/ Sailas ,  Pekka Taskinen ,  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。