METHOD OF IMPROVING RUNNABILITY OF A DRYING SECTION OF A PAPER MACHINE, USE OF A ROTATING DRYING CYLINDER, DRYING SECTION OF A PAPER MACHINE AND METHOD OF SELECTING A DRYING STRATEGY

摘要

This invention relates to a method of improving runnability of a dryingsection (40) of a paper or board machine or similar. A paper web is contactedwith surfaces of a number of successive drying cylinders (41) at a machinespeed of at least 550 m /min. One or more drying cylinder surfaces in thebeginning of the drying section are heated to a temperature of at least 120~C.The invention also relates to a use of heated rotating drying cylinders in apaper machine or similar, a drying section of a paper machine and a method ofselecting a drying strategy.