发明公开
EP1123438A1 FORMER-PRESS SECTION IN A PAPER MACHINE AND METHOD FOR TRANSFER OF THE WEB FROM THE FORMER TO THE PRESS SECTION
有权
FORMIERPRESSENPARTIE造纸机和方法对于前者压榨部运转列车
- 专利标题: FORMER-PRESS SECTION IN A PAPER MACHINE AND METHOD FOR TRANSFER OF THE WEB FROM THE FORMER TO THE PRESS SECTION
- 专利标题(中): FORMIERPRESSENPARTIE造纸机和方法对于前者压榨部运转列车
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申请号: EP99931323.2申请日: 1999-06-22
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公开(公告)号: EP1123438A1公开(公告)日: 2001-08-16
- 发明人: HONKALAMPI, Petter , LAAPOTTI, Jorma
- 申请人: VALMET CORPORATION
- 申请人地址: Panuntie 6 00620 Helsinki FI
- 专利权人: VALMET CORPORATION
- 当前专利权人: VALMET CORPORATION
- 当前专利权人地址: Panuntie 6 00620 Helsinki FI
- 代理机构: Leson, Thomas Johannes Alois, Dipl.-Ing.
- 优先权: FI981513 19980701
- 国际公布: WO0001880 20000113
- 主分类号: D21F2/00
- IPC分类号: D21F2/00 ; D21F3/00
摘要:
The invention relates to a former-press section (100, 110) of a paper machine and to a method of transferring a web from a former to a press section. Between the former section (100) and the press section (110) there is a pre-press zone (PP) which removes water from the web (W) and through which the web (W) is passed as a closed draw from the former section (100) to the press section (110). The upper wet wire (10) or the equivalent transfer wire (10A) of the former section (100) is passed through the pre-press zone (PP), the web (W) being passed on the lower face of said wire into and through the pre-press zone (PP). Inside the loop of the upper wet wire (10) or of the equivalent transfer wire (10A) and/or inside the loop of the lower wet wire (20) there are transfer devices (15, 15a, 16, 26) based on the use of a pressure difference. The transfer devices (15, 15a, 16, 26) are arranged to operate in connection with threading or an operational malfunction such that the web (W) is separated from the upper wet wire (10) or the equivalent transfer wire.
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