Patent ID: 6473997
Filing Date: 2002-11-05
Classification: D21F

Abstract:
A method of dewatering a fibrous web (9) in a drying section, preferably a paper web, cellulose web or cardboard web in a paper machine, in which method the fibrous web is heated for decreasing the moisture content thereof, the drying section comprising a number of drying cylinders (8), by which an inlet and outlet nip are formed when running the fibrous web, the drying section comprising dewatering devices for decreasing the moisture content of the fibrous web in which method the fibrous web (9) is guided against a porous drying cylinder (8), characterized byguiding the fibrous web (9) wirelessly against the porous drying cylinder (8), heating the fibrous web (9) within the drying section by radiation heat activating water molecules and directed towards the fibrous web and the drying cylinder (8), and providing by lateral blowing a humid airflow which sweeps in the machine direction along the surface of the fibrous web (9).