FI925162A - Paper machine headbox - Google Patents

Paper machine headbox Download PDF

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Publication number
FI925162A
FI925162A FI925162A FI925162A FI925162A FI 925162 A FI925162 A FI 925162A FI 925162 A FI925162 A FI 925162A FI 925162 A FI925162 A FI 925162A FI 925162 A FI925162 A FI 925162A
Authority
FI
Finland
Prior art keywords
flow
distribution
inlet box
disks
overlap
Prior art date
Application number
FI925162A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI925162A0 (en
FI93874B (en
FI93874C (en
Inventor
Ari Linsuri
Jyrki Huovila
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 FI925162A priority Critical patent/FI93874C/en
Publication of FI925162A0 publication Critical patent/FI925162A0/en
Publication of FI925162A publication Critical patent/FI925162A/en
Publication of FI93874B publication Critical patent/FI93874B/en
Application granted granted Critical
Publication of FI93874C publication Critical patent/FI93874C/en

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Abstract

Inlet box for a papermaking machine, comprising the following parts arranged in the presented order in the direction of flow of the pulp suspension: a distribution shaft 15 for the inlet box; a perforated disk 17 with flow hole 18 in the plane of the front wall of the distribution shaft 14, which perforated disk acts as a first flow resistance to the flow of the inlet box; an equalising chamber 25; a turbulence generator 26 which functions as a second flow resistance; an overlap channel 29 which tapers in the flow direction F; an overlap opening 20 at the exit end of the overlap channel, in which overlap opening the flow of pulp suspension J flows out across the shaping wire gauze or to the gap K between the shaping wire gauzes 10, 12. The inlet box includes an individual distribution disk or distribution disks 20 with mutually parallel distribution disks 21. These distribution disks extend L subscript 1 in the flow direction F of the pulp suspension for a considerable portion across the length L subscript 2 of the equalising chamber 25. The distribution disks of said system of distribution disks 21 are of uniform surface structure without significant discontinuous places from both opposite surfaces in the transverse direction across the entire width L of the inlet box. <IMAGE>
FI925162A 1992-11-13 1992-11-13 Paper machine headbox FI93874C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI925162A FI93874C (en) 1992-11-13 1992-11-13 Paper machine headbox

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI925162 1992-11-13
FI925162A FI93874C (en) 1992-11-13 1992-11-13 Paper machine headbox

Publications (4)

Publication Number Publication Date
FI925162A0 FI925162A0 (en) 1992-11-13
FI925162A true FI925162A (en) 1994-05-14
FI93874B FI93874B (en) 1995-02-28
FI93874C FI93874C (en) 1995-06-12

Family

ID=8536211

Family Applications (1)

Application Number Title Priority Date Filing Date
FI925162A FI93874C (en) 1992-11-13 1992-11-13 Paper machine headbox

Country Status (1)

Country Link
FI (1) FI93874C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7504003B2 (en) 2004-12-08 2009-03-17 Vaahto Oy Arrangement in a headbox

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7504003B2 (en) 2004-12-08 2009-03-17 Vaahto Oy Arrangement in a headbox

Also Published As

Publication number Publication date
FI925162A0 (en) 1992-11-13
FI93874B (en) 1995-02-28
FI93874C (en) 1995-06-12

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