发明授权
- 专利标题: Hot-pressing and drying device
- 专利标题(中): 热压干燥装置
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申请号: US495484申请日: 1990-03-19
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公开(公告)号: US5092962A公开(公告)日: 1992-03-03
- 发明人: Erkki Koski
- 申请人: Erkki Koski
- 申请人地址: FIX
- 专利权人: Valmet Paper Machinery Inc.
- 当前专利权人: Valmet Paper Machinery Inc.
- 当前专利权人地址: FIX
- 优先权: FIX891531 19890330
- 主分类号: D21F3/02
- IPC分类号: D21F3/02 ; D21F3/04
摘要:
A device is provided for the removal of water from a web by hot-pressing while the web is in direct contact with a heated cylinder face. The web is passed, while being supported by a press fabric, through at least two separate press stages. The web is first passed into direct contact with the heated cylinder face and into an extended-nip press stage. At the beginning of the extended-nip press stage, a press-glide belt is passed into contact with the press fabric. The press-glide belt is pressed by means of a press member in the extended-nip stage against the heated cylinder face. This press-glide belt is separated from the fabric and the web is passed to the next stage where the web is pressed against a cylinder face only by means of the tension of the press fabric. After this latter stage, the web is passed to an intensive roll-nip pressing stage, through a roll-nip which is formed between the hot cylinder and a hollow-faced press roll. In this stage, water is removed from the web into the press fabric and into the hollow face of the press roll. The press fabric is separated from the web, which is then detached from the face of the hot cylinder.
公开/授权文献
- US4489761A Hand weaving loom 公开/授权日:1984-12-25
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