Abstract
A pressing apparatus for a paper- or board-making machine for removing fluids from a web (W) by pressing comprises at least one belt which guides the web. The belt (20) is impervious to fluids and forms an endless loop. At least one nip is formed between a press roll (2) and a pressure means (1) of the pressing apparatus. The guided web is arranged to pass through the nip. The pressure means comprises at least one pressure chamber containing a pressure medium and extending along the length of the nip in the web moving direction such that the pressure medium directly contacts the belt. The pressure chamber has a pressure-operated sealing member (40) which cooperates with the belt, and the sealing operating pressure is adjusted in accordance with the pressure acting in the pressure chamber.
Patent family as of 3.1.2024
AT528442 E 20111015 AT20070802756T 20070821
CN101778975 A 20100714 CN200780100258 20070821
CN101778975 B 20130918 CN200780100258 20070821
DE602007017843 D1 20120112 DE200760017843T 20070821
EP2179087 A1 20100428 EP20070802756 20070821
EP2179087 B1 20111012 EP20070802756 20070821
WO09024186 A1 20090226 WO2007EP58673 20070821
| Original language | English |
|---|---|
| Patent number | CN101778975 B |
| IPC | D21F 3/ 02 A I |
| Priority date | 21/08/07 |
| Publication status | Published - 14 Jul 2010 |
| MoE publication type | Not Eligible |