Method and equipment for cleaning and maintaining rolls

The surface of a web is monitored by a fault detection system ( 20 ), 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 mo...

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Bibliographic Details
Main Authors TAPIO MAENPAA, HELENA LEPPAKOSKI, MARKUS LAITILA, KARI HASANEN, TIMO VUORIMIES, OLLI-PEKKA VAKEVA, MARJAANA TOPPILA, PEKKA KOIVUKUNNAS, PEKKA LINNONMAA, TONI SEPPANEN, MARKKU KYYTSONEN, TARJA HANSKA, MARKKU KOJO, AARON MANNIO
Format Patent
LanguageEnglish
Published 22.03.2002
Edition7
Subjects
ACCESSORIES FOR PAPER-MAKING MACHINES
CALENDERS
PAPER-MAKING
PRODUCTION OF CELLULOSE
TEXTILES
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Summary:The surface of a web is monitored by a fault detection system ( 20 ), 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 ( 31, 35; 60 ). A control system ( 41 ) controls a cleaning device ( 40 ) 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.
Bibliography:Application Number: AU19850097301