公开(公告)号：US5467534A

公开(公告)日：1995-11-21

申请号：US150449

申请日：1993-11-10

申请人： Robert L. Salter ,  Hans-Peter Sollinger

发明人： Robert L. Salter ,  Hans-Peter Sollinger

IPC分类号： D21F5/04 ,  D21F7/02 ,  F26B11/02

CPC分类号： D21F5/042 ,  D21F7/02

摘要： A process for drying a paper web and a drying section of a paper making machine. The drying section includes at least one drying group comprised of a plurality of drying cylinders, each at least partially wrapped by a web to be dried. The drying cylinders having peripheral surfaces heated for drying the web moving therepast. The peripheral surfaces of the drying cylinders in the drying groups are rotated at the velocity of the web along the web path. At least one of the drying cylinders in at least one drying group is driven to rotate at a speed that is different than the speed of the web moving past the at least one cylinder. The at least one cylinder may be selectively driven to rotate faster or slower than the speed of the web moving therepast, which applies more heat to the paper web. The invention is adaptable for a single tier drying section and/or for a double tier drying sections or for other drying section arrangements. The operation of a drying cylinder at a different speed than the other cylinders is useful for one or more than one drying cylinder in a drying group and where a drying section is comprised of more than one drying group, is useful for a drying cylinder in one or more of the drying groups.

摘要翻译： 一种用于干燥造纸机的纸幅和干燥部的方法。 干燥部分包括由多个干燥筒组成的至少一个干燥组，每个干燥筒至少部分地被待干燥的幅材包裹。 干燥筒具有加热的外周表面，用于干燥幅材移动。 干燥组中的干燥筒的周边表面沿着幅材路径以幅材的速度旋转。 至少一个干燥组中的干燥筒中的至少一个被驱动以不同于幅材移动通过至少一个气缸的速度的速度旋转。 可以选择性地驱动至少一个圆筒以比移动纸幅的幅材的速度更快或更慢地旋转，这对纸幅施加更多的热量。 本发明适用于单层干燥段和/或双层干燥段或其它干燥段布置。 干燥筒以与其他圆筒不同的速度操作可用于干燥组中的一个或多个干燥筒，并且干燥部分由多于一个的干燥组组成，可用于一个干燥筒 或更多的干燥组。