发明授权
- 专利标题: Wet press for dewatering a web of material
- 专利标题(中): 湿压机用于对材料网进行脱水
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申请号: US695853申请日: 1985-01-28
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公开(公告)号: US4556454A公开(公告)日: 1985-12-03
- 发明人: Hans Dahl , Herbert Holik , Rudiger Kurtz , Wolf-Gunter Stotz
- 申请人: Hans Dahl , Herbert Holik , Rudiger Kurtz , Wolf-Gunter Stotz
- 申请人地址: DEX Ravensburg
- 专利权人: Sulzer-Escher Wyss GmbH
- 当前专利权人: Sulzer-Escher Wyss GmbH
- 当前专利权人地址: DEX Ravensburg
- 优先权: CHX533/84 19840206
- 主分类号: D21F3/02
- IPC分类号: D21F3/02
摘要:
In a wet press for dewatering a web of material, for instance a web of paper, a contact pressure device presses against a rotating roll and exerts a pressure which increases in the travel direction of the web of paper. For this purpose, several rows of contact pressure elements are arranged sequentially in the travel direction of the web of paper. In each row the contact pressure elements are arranged side by side transversely to the travel direction of the web of paper. In order to circumvent a differential dewatering at the location of the contact pressure elements and at the gaps between the contact pressure elements of a row, the contact pressure elements of successive rows are shifted or staggered in relation to one another transversely to the web of material such that they mutually overlap. This prevents the arisal of strips in the paper being processed.