Patent ID: 6423184
Filing Date: 2002-07-23
Classification: D21F,Y10S

Abstract:
A method for regulation of the initial part of the dryer section in a paper machine having a press section in which moisture is removed from the paper web, and a dryer section in which the paper web is dried, and in which the paper web is passed from the press section into a first group of first drying cylinders forming a part of the dryer section, in which the paper web is dried against heated faces of the drying cylinders, the method comprising the steps of:measuring the surface temperatures of the first drying cylinders of the first group of drying cylinders in the dryer section; measuring the dry solids content/moisture content of the paper web and the temperature of the paper web upstream of said first drying cylinders, and in view of producing the desired running situation, based on the measured surface temperatures and dry solids content/moisture contents, regulating the surface temperatures of the first drying cylinders, the dry solids content/moisture content, and the temperature of the paper web before said first drying cylinders.