Device and method in connection with the manufacturing of paper or cardboard
AssigneeStora Kopparbergs Bergslags Aktiebolag (publ)
InventorLennart Westman
Life of this patent
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AssigneeStora Kopparbergs Bergslags Aktiebolag (publ)
InventorLennart Westman
Estimating the term…
Device for a drying section useful in the manufacture of paper or paperboard as a fibrous web. The drying section includes a drying drum rotatable about a first axis of rotation and arranged such that the fibrous web runs in contact with a surface of the drying drum, at least about a part of its circumference, and is dried thereby. The device includes at least one press roller rotatable about a second axis of rotation which is essentially parallel with the first axis of rotation, and is arranged, with a line load, to bear against the fibrous web, whereby the drying drum supports the at least one press roller. The at least one press roller is positioned at a corresponding longitudinal edge of the fibrous web, the least one press roller having a first cross-sectional diameter (D) at outer short ends in the device, and a second cross-sectional diameter (d) at inner short ends of the device, the first cross-sectional diameter (D) being larger than the second cross-sectional diameter (d).
Device for a drying section useful in the manufacture of paper or paperboard as a fibrous web, which drying section comprises a drying drum rotatable about a first axis of rotation and arranged such that said fibrous web runs in contact with a surface of said drying drum, at least about a part of its circumference, and to be dried thereby, said device comprising at least one press roller rotatable about a second axis of rotation which is essentially parallel with said first axis of rotation, and arranged, with a line load, to bear against said fibrous web, whereby said drying drum supports said at least one press roller, said at least one press roller being positioned at a corresponding longitudinal edge of said fibrous web, said at least one press roller having a first cross-sectional diameter (D) at outer short ends in the device, and a second cross-sectional diameter (d) at inner short ends of the device, said first cross-sectional diameter (D) being larger than said second cross-sectional diameter (d).
Device for a drying section useful in the manufacture of paper or paperboard as a fibrous web, which drying section comprises a drying drum rotatable about a first axis of rotation and arranged such that said fibrous web runs in contact with a surface of said drying drum, at least about a part of its circumference, and to be dried thereby, said device comprising at least one press roller rotatable about a second axis of rotation which is arranged, with a line load, to bear against said fibrous web, whereby said first axis of rotation and said second axis of rotation, for a corresponding press roller, slightly converge towards each other in a direction out from the device.
Dependencies are inferred from the claim text.