Device and method for producing a material web
US8580083B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2013 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Jan 24, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B5/047
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method to dewater a fibrous web includes directing the fibrous web through a first press zone defined between a revolving permeable belt and a revolving permeable support belt and having a first press zone length. The fibrous web is arranged lying between the revolving permeable belt and the revolving permeable support belt. A fluid is caused to flow through the permeable belt, the fibrous web and the support belt at least over a section of the first press zone length. The fibrous web is dewatered in a second press zone following the first press zone and defined between the revolving permeable belt and the revolving permeable support belt, the second press zone having a second press zone length. The fibrous web is led through the second press zone between the permeable belt and the support belt, the permeable belt and the support belt each having a different compressibility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.