Abstract: The invention concerns a dryer-section concept of a paper/board machine and a method in the drying of a paper/board web (W). The dryer section comprises a number of drying cylinder groups (R.sub.I . . . R.sub.N), which comprise a single-wire draw, on whose support the web (W) is guided so that it meanders as loop-shaped from a drying cylinder onto a suction cylinder. The web (W)/the wire (H) is guided so that the web is placed against the face of the drying cylinder and the wire is placed outside. In the dryer-section concept, the web (W) is passed from one drying cylinder group (R.sub.I) into the next dryer group (R.sub.II) and further. According to the invention, at least some of the drying cylinders (K'.sub.1, K'.sub.2, K'.sub.

Abstract: A method for manufacturing low bark-content wood chips from whole-tree chips. The method has two or more sequential separation stages, which can be divided into pre-separation with a bark content of less than 10% and final cleaning, and in which the pre-separation comprises at least pneumatic separation and the final cleaning includes sorting based on color difference. Before pneumatic separation the bark is removed from the chips by grinding, which simultaneously reduces the particle size of the bark.