Continuous fibrous material web e.g. tissue web, drying method, involves heating casing of cylinder from outside cylinder area that is not exposed by web and porous covering, where casing is wound to impermeable press strip

摘要

#CMT# #/CMT# The method involves guiding a continuous fibrous material web (24) e.g. paper, cardboard or tissue web, together with an outer impermeable press strip (28) and porous covering (30). The outer press strip is subjected by a pressure hood and wound to a heated rotary cylinder (26) together with the porous covering and the fibrous material web. A casing (36) of the cylinder is heated from outside a cylinder area (38) that is not exposed by the fibrous material web and porous covering, and wound to the impermeable press strip. #CMT#USE : #/CMT# Method for drying a continuous fibrous material web e.g. paper, cardboard or tissue web, by a drying arrangement of a fibrous material web manufacturing and/or processing machine (all claimed). #CMT#ADVANTAGE : #/CMT# The casing of the cylinder is heated from outside the cylinder area that is not exposed by the fibrous material web and porous covering and wound to the strip, thus avoiding requirement of a cylinder wall thickness to be thin, hence manufacturing the cylinder in a simple and cost effective manner, and achieving higher thermal capacity of the cylinder casing by a larger wall thickness while achieving higher resistive torque of the cylinder. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic representation of a drying arrangement. 22 : Drying arrangement 24 : Continuous fibrous material web 26 : Heated rotary cylinder 28 : Outer impermeable press strip 30 : Porous covering 36 : Casing 38 : Cylinder area.