METHOD FOR DEWATERING AND A DEWATERING APPARATUS
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United States of America Patent
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Issued Date -
Aug 13, 2009
app pub date -
Feb 3, 2009
filing date -
Feb 11, 2008
priority date (Note) -
Abandoned
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Abstract
This invention relates to a dewatering apparatus, in particular a paper machine or a paperboard machine, for the adjustable, and controllable dewatering of a fibrous material, which is conveyed as a fibrous web that can be divided into at least two zones arranged side by side in a cross direction (CD). The dewatering apparatus is characterized in that the dewatering of the fibrous material is adaptable to a dewatering curve defined in a machine direction on the basis of measurements of the water weight of the fibrous material taken by at least two water weight sensors, in particular a one-dimensional or multi-dimensional sensor arrangement of water weight sensors, which are assigned to a zone and arranged preferably in pairs in mutually offset position in the CD direction.
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