公开(公告)号：US6132559A

公开(公告)日：2000-10-17

申请号：US53576

申请日：1998-04-02

申请人： Arto Haavanlammi ,  Ari Puurtinen ,  Mika Viertola

发明人： Arto Haavanlammi ,  Ari Puurtinen ,  Mika Viertola

IPC分类号： D21F2/00 ,  D21F3/02

CPC分类号： D21F3/045 ,  D21F2/00

摘要： A method and device for dewatering a paper or board web and passing the web as a closed draw from a lower wire of a web forming section, in which the web is formed between the lower wire and an upper wire, to the press section and through one or more dewatering press nips in the press section. The web is separated from the upper wire on a first suction zone or block of the suction roll, after which the web is affixed to the lower wire over a second suction zone or block of the suction roll. The web is then affixed, in a pre-press and transfer nip formed by the suction roll and a smooth-faced roll, onto the outer face of a substantially non-watering-receiving transfer belt, the web being passed on support of this belt into the first press nip. In the press nip, water is pressed out of the web into a water-receiving press felt.

摘要翻译： 一种用于使纸或纸幅脱水的方法和装置，并且将纸幅作为封闭的纸卷从纸幅形成部分的下部纸幅通过，其中纸幅形成在下部纸丝和上部线之间，并且通过 压榨部中有一个或多个脱水压榨机。 在第一抽吸区域或抽吸辊的块上，腹板与上部线材分离，之后，幅材通过吸力辊的第二抽吸区域或块被固定到下部丝网上。 然后将纸幅在由吸辊和平滑面辊形成的预压和转印夹持件中固定到基本上不接水的转印带的外表面上，将纸幅通过该带的支撑 进入第一个压榨压区。 在压榨压区中，水从纸幅中压出到受水的压榨毛毯中。