CALENDER FOR FIBROUS MATERIAL WEBS AND METHOD OF OPERATING SAME

摘要

Calender for a fibrous material web and method of operating a calender for a fibrous material web. The calender includes a first roll stack and a second roll stack each arranged in a common plane on a stanchion, each roll stack having a top deflection adjustment roll having a sleeve, a bottom deflection adjustment roll having a sleeve, and three intermediate rolls disposed between the top deflection adjustment roll and the bottom deflection adjustment roll, the uppermost the intermediate roll being fixedly mounted to the stanchion. The calender further has a deflection adjustment device having a sleeve lift supporting each sleeve, at least one deflection adjustment device facing the first roll stack in a first operative position and facing the second roll stack in a second operative position. A nonrotatable bracket supporting each deflection adjustment device and fixedly mounted to the stanchion is also provided. The bottom roll of the first roll stack and the top roll of the second roll stack are disposed adjacent to each other and adapted to form a nip therebetween by closing a sleeve lift of at least one of the bottom roll of the first roll stack and the top roll of the second roll stack. Also provided is a method of operating a calender for a fibrous material web