Process and apparatus in a cylinder dryer of a papermaking machine with two dryer fabrics

摘要

The invention relates to a method in a cylinder dryer of a paper machine, in which the paper web is guided to the upper cylinders using a top wire and the bottom cylinders using a bottom wire, with the wires being guided by the drying cylinders and disposed in the spaces between guide rollers in such a way that the web is pressed against the top cylinder row by the top wire in direct drying contact with the surface of the upper cylinder and corresponding to the bottom wire against the surface of the cylinder and the web is guided from one row of cylinders to the other over a certain distance as a free train, wherein air is blown. It is voprnehmlich characterized in that the air, particularly heated fresh air is blown directly into the formed by the dryer fabric and the paper web pockets. Furthermore, the invention relates to a device which is provided for a cylinder dryer of a paper machine having a twin-wire draw, which has an air injector. The apparatus is characterized in that the air insufflation device (18, 19, 20, 21), in particular an air injection tube formed in the dryer (8, 9) and the paper web (7) pocket (22, 23, 24, 25) provided is.