| 摘要 |
The [invention relates to a method and equipment for cleaning rolls of a paper machine or board machine. In the method, 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). [Information on the detection and location of soiling is delivered from the soiling monitoring apparatus (31, 35; 60) to a]A control system (41) [of the cleaning device, which ]controls [the]a cleaning device (40) to remove the detected soiling. [The equipment for cleaning rolls comprises of a soiling monitoring apparatus (31, 35; 60), a cleaning device (40) and a control system (41) for controlling the cleaning device (40). The invention also relates to a method and equipment for maintaining the surface of a roll, in which]As a web (W) travels in a paper or board production or finishing process or in finishing machinery[. In the method], the web[(W)] and/or the surface of the roll is monitored and after a detected deviation the surface [of the roll or the web (W)]thereof is momentarily spread with a liquid while[the paper or board machine or the finishing] machinery is running at the same time as the web (W) travels over said roll surface.[The equipment by which the web (W) is guided over the surface of the roll, comprises an automatic monitoring device for monitoring the web (W) and/or the surface of the roll, a data processing device, a liquid spreading device, which is arranged to spread liquid on the surface of the web (W) or the roll according to commands given by a data processing unit, and an arrangement which enables the liquid and possible extra substances to be carried away with the web (W) traveling over the roll surface.]
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