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Method and arrangement for controlling short circulation in a paper machine or the like
   
Document Number
US Patent 7566382
Issued Date
July 28, 2009
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Abstract
A method and arrangement for controlling short circulation in a paper machine, in which the control of at least one property of the diluted fiber-containing pulp conducted to the headbox is based on consistency measurement or determination in high-consistency fiber-containing pulp, diluted pulp and/or white water. The amount of fiber-based fines in high-consistency fiber-based pulp, diluted fiber-based pulp and/or white water is determined, and the result obtained is used for controlling at least one property of the fiber-containing pulp to be conveyed to the headbox.
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Number of Claims:
19
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Owner
Metso Automation OY (Helsinki,FI)
Published
July 28, 2009
Application Number
11/211,760
Filed
August 26, 2005
US Classification
162/198   162/190 162/258 162/263 162/49 700/127 700/128 73/53.04
Int'l Classification
D21F   11/00   (20060101)  
Examiner
Attorney/Law Firm
Parent Case
This is a Continuation of application Ser. No. 10/467,637 filed Aug. 15, 2003, which in turn is a National Stage of PCT/FI02/00147 filed Feb. 22, 2002. The entire disclosures of the prior applications are hereby incorporated by reference herein in their entirety.
Priority Data
Feb 23, 2001 [FI] 20010360
USPTO Field of Search
162/198   162/263   162/190   162/258   162/DIG.10   162/DIG.11   162/49   700/127   700/128   700/129   73/53.04   73/863  
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