ARRANGEMENT AND METHOD FOR PREVENTING THE WEAR OF THERMO ROLLS IN A CALENDER

摘要

The invention relates to an arrangement for preventing the wear of thermo rolls in a calender, in which arrangement (1) there is provided a calender with one or several roll nips (N), between which the fibrous web (W) travels while being simultaneously profiled, and of which roll nips (N) at least one consists of a pair of rolls with a thermo roll and its counter roll so that the fibrous web is moistened by a wetting device before the said pair of rolls. In the arrangement before the said wetting device for the fibrous web, adjacent to the fibrous web to be calendered there is provided the dust separator (3), by means of which the fibrous web is cleaned.