Metso Paper Inc.

Tarja Hanska

Pekka Koivukunnas

Pekka Linnonmaa

Markku Kyytsönen

Aaron Mannio

Tapio Mäenpää

Kari Hasanen

Timo Vuorimies

Markus Laitila

Helena Leppäkoski

Markku Kojo

Olli-Pekka Väkevä

Toni Seppänen

Marjaana Toppila

The surface of a web is monitored by a fault detection system (), a machine condition monitoring system, a quality measurement system, a web moisture measurement and/or a web temperature measurement and the soiled part of the surface of the roll is detected and localized by means of a soiling monitoring apparatus (). A control system () controls a cleaning device () to remove the detected soiling. As a web (W) travels in a paper or board production or finishing process or in finishing machinery the web and/or the surface of the roll is monitored and after a detected deviation the surface thereof is momentarily spread with a liquid while machinery is running at the same time as the web (W) travels over said roll surface.

Method and equipment for cleaning and maintaining rolls

Growing community of inventors

Tampere, Finland

Tarja Hanska