Device for treating a pulp web in an extended nip pressing unit
US8349138B2 · kind B2 · utility
1Cited by
18References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 2010 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Aug 30, 2030 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F11/006
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process and apparatus for treating a pulp web (9) in a paper or board machine in a pressing unit (29) with one press roll (24) that has a rotating press shell (25) and one opposing roll (23), where the pulp web (9) is dewatered in an extended press nip (26) between the opposing roll (23) and the pressing shell (25) of the press roll (24). The pulp web (9) is carried on the rotating pressing shell (25) of the press roll (24) to a transfer zone (30), where the pulp web (9) is passed from the pressing shell (25) onto a transfer element (31, 27) after leaving the extended press nip (26).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.