ARRANGEMENT IN THE DRYING SECTION OF A PAPER MACHINE

摘要

The invention relates to an arrangement in a multi-cylinder dryer of a paper machine, which arrangement includes at least one drying cylinder (10) and at least one roll (11,12) located at a different height to the cylinder and at a distance to it in the machine direction, the paper web (14) travelling from the drying cylinder (10) to this roll (11, 12) .Dry air is brought to the dryer through a beam (13) located in front of the paper web (14) in the machine direction, in which dryer the air is directed by means of nozzles (33) arranged in the beam into a throat (21) between the drying cylinder (10) and the paper web (14) mainly to intensify the drying effect. A doctor (27) is arranged in, or in connection with the said beam (13) to keep the surface of the drying cylinder clean. The beam (13) is arranged to form with the roll (12) a smooth, high channel (25), at least on the side of the roll (12), for the passage of the web during a disturbance.