- 专利标题： VERFAHREN ZUR HERSTELLUNG EINER FASERSTOFFBAHN
- 专利标题（英）： EP3359733A1 - Method for producing a fibrous material web
-
申请号： EP16766279.0申请日： 2016-09-14
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公开(公告)号： EP3359733A1公开(公告)日： 2018-08-15
- 发明人: ANZEL, Andreas , SCHERB, Thomas , MAUSSER, Wilhelm , GISSING, Klaus
- 申请人： Andritz AG
- 申请人地址： Stattegger Strasse 18 8045 Graz AT
- 专利权人： Andritz AG
- 当前专利权人： Andritz AG
- 当前专利权人地址： Stattegger Strasse 18 8045 Graz AT
- 代理机构： Tschinder, Thomas
- 优先权： AT508432015 20151005
- 国际公布： WO2017060049 20170413
- 主分类号： D21F11/00
- IPC分类号： D21F11/00 ; D21F11/14
摘要：
The invention relates to a method for producing a fibrous material web (9), particularly for producing a tissue or hygienic paper web, in which a fibrous material suspension is dewatered in a twin wire former (18) to obtain a fibrous material web (9), and said fibrous material web (9) is dried with the aid of a TAD dryer (19). After the twin wire former (18) and before the TAD dryer (19), a pre-dewatering device (20) is provided which comprises a hood (17) and a suction roller (16), a hot fluid flow passing through the fibrous material web (9) that is embedded between one covering (3, 4, 5) on each side. The covering (5) between the suction roller (16) and the fibrous material web (9) is a felt (5), and the covering (3, 4) between the fibrous material web (9) and the hood (17) is a screen (3, 4). In said pre-dewatering device (20), a specific volumetric fluid flow greater than 100 m
3 / (m
2. min), particularly greater than 200 m
3 / (m
2. min), and preferably greater than 250m
3 / (m
2. min) is sucked through the fibrous material web (9).
3 / (m
2. min), particularly greater than 200 m
3 / (m
2. min), and preferably greater than 250m
3 / (m
2. min) is sucked through the fibrous material web (9).
公开/授权文献
- EP3359733B1 VERFAHREN ZUR HERSTELLUNG EINER FASERSTOFFBAHN 公开/授权日：2019-05-08
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