Valmet Corporation

Valmet Paper Machinery Inc.

Henrik Petterson

Antti Kuhasalo

Antti I Ilmarinen

Heikki Ilvespaa

Pertti Heikkila

Jouko Yli-Kauppila

Mikko Karvinen

Matti Korpela

Pekka Taskinen

Dick Parker

Vaino Sailas

Ilkka Jokioinen

Va/ Ino/ Sailas

Iikka Jokioinen

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.

Drying method and drying module as well as dryer sections that make use

Drying module and dryer sections that make use of same, in particular

Growing community of inventors

Myna/ ma/ ki, Finland

Henrik Petterson