Invention Grant
- Patent Title: Method and device for drying a fibrous web
- Patent Title (中): 用于干燥纤维网的方法和装置
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Application No.: US13206802Application Date: 2011-08-10
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Publication No.: US09328460B2Publication Date: 2016-05-03
- Inventor: Thomas Scherb , Joao V. Boechat
- Applicant: Thomas Scherb , Joao V. Boechat
- Applicant Address: DE Heidenheim
- Assignee: Voith Patent GmbH
- Current Assignee: Voith Patent GmbH
- Current Assignee Address: DE Heidenheim
- Agency: Taylor IP, P.C.
- Priority: DE102009000753 20090211
- Main IPC: F26B3/00
- IPC: F26B3/00 ; D21F5/20 ; D21F3/02 ; D21F5/18

Abstract:
The invention relates to a method and to a device for drying a fibrous web wherein the traveling fibrous web is acted upon by steam and hot, moist air in the region of a preceding drying zone and is then fed to the preceding drying zone of a downstream drying zone comprising a drying cylinder and a hood allocated thereto. Hot air is taken out of the hood allocated to the drying cylinder of the downstream drying zone. To create at least a portion of the steam for the preceding drying zone, condensate and/or fresh water occurring in the drying cylinder of the downstream drying zone is heated by the hot air taken out of the hood by means of a first heat exchanger. Alternatively or additionally for creating at least a portion of the hot, moist air for the preceding drying zone, the hot air taken out of the hood guided through the first heat exchanger is fed to the preceding drying zone.
Public/Granted literature
- US20120000089A1 METHOD AND DEVICE FOR DRYING A FIBROUS WEB Public/Granted day:2012-01-05
Information query
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