FI874256A - FOERFARANDE OCH ANORDNING I INLOPPSLAODAN AV EN PAPPERSMASKIN. - Google Patents

FOERFARANDE OCH ANORDNING I INLOPPSLAODAN AV EN PAPPERSMASKIN. Download PDF

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Publication number
FI874256A
FI874256A FI874256A FI874256A FI874256A FI 874256 A FI874256 A FI 874256A FI 874256 A FI874256 A FI 874256A FI 874256 A FI874256 A FI 874256A FI 874256 A FI874256 A FI 874256A
Authority
FI
Finland
Prior art keywords
head box
flow
pulp suspension
turbulence generator
flow passages
Prior art date
Application number
FI874256A
Other languages
Finnish (fi)
Other versions
FI874256A0 (en
FI82729B (en
FI82729C (en
Inventor
Erkki Mesiaeinen
Original Assignee
Valmet Paper Machinery Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valmet Paper Machinery Inc filed Critical Valmet Paper Machinery Inc
Priority to FI874256A priority Critical patent/FI82729C/en
Publication of FI874256A0 publication Critical patent/FI874256A0/en
Publication of FI874256A publication Critical patent/FI874256A/en
Publication of FI82729B publication Critical patent/FI82729B/en
Application granted granted Critical
Publication of FI82729C publication Critical patent/FI82729C/en

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Abstract

Method in the head box of a paper machine, the head box comprising a discharge channel 13, from which a jet J of pulp suspension flows out on the wire 1. In the turbulence generator 22 and/or distribution pipework of the head box a group of superimposed parallel flow passages 23 is used, in which a pulp suspension flow is divided up into secondary flows F1, which are combined into a discharge channel flow F. With the method the speed profile and/or corresponding grams per square metre profile of the jet J of pulp suspension flowing out via the discharge opening are controlled by regulating the flow cross-sectional areas of the flow passages 23 of the distribution pipework and/or the turbulence generator 22. Regulation of the cross-sectional area of the flow passages 23 of the distribution pipework and/or the turbulence generator 22 has been extended to encompass the entire transverse width of the head box. <IMAGE>
FI874256A 1987-09-28 1987-09-28 Method and apparatus in the inlet box of a paper machine FI82729C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI874256A FI82729C (en) 1987-09-28 1987-09-28 Method and apparatus in the inlet box of a paper machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI874256 1987-09-28
FI874256A FI82729C (en) 1987-09-28 1987-09-28 Method and apparatus in the inlet box of a paper machine

Publications (4)

Publication Number Publication Date
FI874256A0 FI874256A0 (en) 1987-09-28
FI874256A true FI874256A (en) 1989-03-29
FI82729B FI82729B (en) 1990-12-31
FI82729C FI82729C (en) 1991-04-10

Family

ID=8525140

Family Applications (1)

Application Number Title Priority Date Filing Date
FI874256A FI82729C (en) 1987-09-28 1987-09-28 Method and apparatus in the inlet box of a paper machine

Country Status (1)

Country Link
FI (1) FI82729C (en)

Also Published As

Publication number Publication date
FI874256A0 (en) 1987-09-28
FI82729B (en) 1990-12-31
FI82729C (en) 1991-04-10

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Legal Events

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Owner name: VALMET PAPER MACHINERY INC