Process for exchanging an intermediate roll in a calender...

Details Process for exchanging an intermediate roll in a calender... Process for exchanging an intermediate roll in a calender...

D - Textiles, Paper

21

G

D21G 1/00 (2006.01) D21G 1/02 (2006.01)

Patent

CA 2355983

Process for exchanging an intermediate roll in a calender and a calender. The calender has more than three rolls arranged to form a pressing plane obliquely oriented at a predetermined angle to a vertical, the intermediate roll to be exchanged being positioned immediately above a neighboring roll. The process includes lowering the neighboring roll at least a distance h defined by the equation: h = (r1, + r2) ( 1 - cos .alpha.), in which r1, is a radius of the intermediate roll, r2 is a radius of the neighboring roll, and a is the predetermined angle, and substantially horizontally removing the intermediate roll to be exchanged. 21

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