Extended-nip roll press for dewatering a fibrous web
AssigneeEduard Kusters Maschinefabrik GmbH & Co. KG
InventorBernhard Brendel
Life of this patent
Estimating the term…
Abstract
Extended-nip roll press for dewatering a material web comprises a rotating mating roll and an extended-nip press roll. The extended-nip press roll has a stationary support and a flexible roll cover which rotates about the support. A press shoe is arranged on the support, and the roll cover has end sections which are clamped firmly on rotatable end walls on the support. End wall clamping rings respond to a first actuating device and clamp a resilient spreader ring radially against an outer ring that can be connected firmly to the end walls. A sealing ring is arranged on each end wall adjacent the clamping ring and can be deformed radially against the outer ring by means of a second actuating device.
Claims10
An extended-nip press roll for an extended-nip roll press for dewatering a material web in a press nip comprising a rotating mating roll on one side and an extended-nip press roll on the other side, wherein the extended-nip press roll includes:
- (a) a tubular flexible roll cover which rotates about its center, the roll cover having end sections at each end of the roll cover which are clamped firmly in a sealing manner on end walls, each end wall located on opposing sides of the roll cover and coupled to the end sections of the roll cover to close out an interior region of the roll cover;
- (b) clamping rings which are axially displaceably guided on each end wall, wherein each clamping ring responds to a first actuating device and clamps a spreader ring with a cylindrical outer surface radially against an outer ring connected firmly to the end wall to clamp in each end section of the roll cover;
- and
- (c) a sealing rings arranged on each end wall adjacent to the clamping ring, said sealing ring being deformable radially against the outer ring by means of a second actuating device that acts separately from the actuation of the clamping ring in order to press an axial portion of the respective end section of the roll cover against the outer ring, wherein the sealing ring may be deformed radially by means of a clamping piece that can be moved by the second actuating device.
An extended-nip press roll for an extended-nip roll press for dewatering a material web in a press nip comprising a rotating mating roll on one side and an extended-nip press roll on the other side, wherein the extended-nip press roll includes:
- (a) a tubular flexible roll cover which rotates about its center, the roll cover having end sections at each end of the roll cover which are clamped firmly in a sealing manner on end walls, each end wall located on opposing sides of the roll cover and coupled to the end sections of the roll cover to close out an interior region of the roll cover;
- (b) clamping rings which are axially displaceably guided on each end wall, wherein each clamping ring responds to a first actuating device and clamps a spreader ring with a cylindrical outer surface radially against an outer ring connected firmly to the end wall to clamp in each end section of the roll cover;
- and
- (c) a sealing rings arranged on each end wall adjacent to the clamping ring, said sealing ring being deformable radially against the outer ring by means of a second actuating device that acts separately from the actuation of the clamping ring in order to press an axial portion of the respective end section of the roll cover against the outer ring, wherein the first and second actuating devices are formed as first and second screws, each screw passing through a through opening to engage a threaded hole, the first screw engaging a threaded hole arranged in the clamping ring and the second screw engaging a threaded hole arranged in the end wall.
Dependencies are inferred from the claim text.