Roll of a paper machine / cardboard or paper machines / cardboard machines - after treatment device and method for fixing of the inner tube in the roll of a paper machine / cardboard or paper machines / cardboard machines - aftertreatment apparatus

摘要

Roller (10) of a paper machine / cardboard machine or a paper machines / cardboard machines - after treatment device, in which roller (10), an inner pipe (11) is installed, wherein the inner tube (11) with its jacket (11a) with a distance from the inner surface (10a₁) of the roll jacket (10a) of the roller (10) is mounted in such a way that a heat transfer medium by a central flow path (j₁) the shafts (10b₁) in the roller (10) and further into the end space (o₃) of the inner tube (11) can be passed, from where the heat transfer medium by means of flow paths (n₁) of the endraumes (o₃) in an annular space (o₁) between the inner tube (11) and the jacket (10a) of the roller (10) and further to the other end of the inner tube (11) and by means of flow paths (n₂) in a space (o₄) in the inner tube (11) and further by means of a flow path (j₂) the shaft (10b₂) from the roll can be passed out, whereby the inner tube (11) holding devices (13a₁, 13a₂, 13a₃) the inner tube (11) against the inner surface (10a₁) of the roll jacket (10a)..