EP1069236A3 - Regulating the pressure in a headbox - Google Patents

Regulating the pressure in a headbox Download PDF

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Publication number
EP1069236A3
EP1069236A3 EP00110345A EP00110345A EP1069236A3 EP 1069236 A3 EP1069236 A3 EP 1069236A3 EP 00110345 A EP00110345 A EP 00110345A EP 00110345 A EP00110345 A EP 00110345A EP 1069236 A3 EP1069236 A3 EP 1069236A3
Authority
EP
European Patent Office
Prior art keywords
headbox
pressure
speed
line
sensor
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP00110345A
Other languages
German (de)
French (fr)
Other versions
EP1069236A2 (en
Inventor
Erwin Binder
Hans-Jörg Burbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent GmbH
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 Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1069236A2 publication Critical patent/EP1069236A2/en
Publication of EP1069236A3 publication Critical patent/EP1069236A3/en
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/02—Head boxes of Fourdrinier machines
    • D21F1/024—Details of the feed chamber
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/02—Head boxes of Fourdrinier machines
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/06—Regulating pulp flow

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  • Paper (AREA)

Abstract

Regelvorrichtung zur Regelung, vorzugsweise zur Feinregelung, des Druckes in einem mit einer Stoffauflaufdüse (5) eines Stoffauflaufes (1) einer Papier- oder Kartonmaschine hydraulisch verbundenen Raum, mit mindestens einer Zuleitung (8) für eine Faserstoffsuspension (100), mindestens einer Verteilvorrichtung (2) für die Faserstoffsuspension (100) und mindestens einer Ableitung (6) für die überschüssige Faserstoffsuspension (100) aus der Verteilvorrichtung (Rezirkulationsleitung) (2), wobei mindestens ein Sensor (10) zur Messung des Druckes in dem mit der Stoffauflaufdüse (5) hydraulisch verbundenen Raum vorgesehen ist und sich in der mindestens einen Zuleitung (8) mindestens eine von dem mindestens einen Sensor (10) beaufschlagte und drehzahlgeregelte Pumpe (Stoffauflaufpumpe) (9) befindet, die durch Änderung ihrer Drehzahl den zeitlichen Verlauf des Druckes in der Stoffauflaufdüse (5) regelt, und ein mit der Regelvorrichtung durchführbares Regelverfahren.

Figure 00000001
Control device for controlling, preferably for fine control, the pressure in a space hydraulically connected to a headbox nozzle (5) of a headbox (1) of a paper or board machine, with at least one feed line (8) for a fiber suspension (100), at least one distribution device ( 2) for the fibrous suspension (100) and at least one discharge line (6) for the excess fibrous suspension (100) from the distribution device (recirculation line) (2), at least one sensor (10) for measuring the pressure in the headbox nozzle (5 ) hydraulically connected space is provided and in the at least one supply line (8) there is at least one speed-controlled pump (headbox pump) (9) which is acted upon by the at least one sensor (10) and which changes the speed of the pressure over time by changing its speed Headbox nozzle (5) controls, and a control method that can be carried out with the control device.
Figure 00000001
EP00110345A 1999-07-14 2000-05-15 Regulating the pressure in a headbox Withdrawn EP1069236A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999132745 DE19932745A1 (en) 1999-07-14 1999-07-14 Regulation of the pressure in a headbox nozzle
DE19932745 1999-07-14

Publications (2)

Publication Number Publication Date
EP1069236A2 EP1069236A2 (en) 2001-01-17
EP1069236A3 true EP1069236A3 (en) 2003-07-09

Family

ID=7914638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00110345A Withdrawn EP1069236A3 (en) 1999-07-14 2000-05-15 Regulating the pressure in a headbox

Country Status (2)

Country Link
EP (1) EP1069236A3 (en)
DE (1) DE19932745A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL1987329T3 (en) * 2006-02-01 2011-12-30 Astenjohnson Inc Headbox and stock delivery system for a papermaking machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598852A (en) * 1946-07-24 1952-06-03 Black Clawson Co Feed regulator for paper machinery
US4086130A (en) * 1976-07-16 1978-04-25 Beloit Corporation Control system and method for a multi-channel paper machine distributor
US4225386A (en) * 1978-03-23 1980-09-30 Aktiebolaget Karlstads Mekaniska Werkstad Headbox for a paper machine
DE3102543A1 (en) * 1980-12-19 1982-07-08 Escher Wyss Gmbh, 7980 Ravensburg PLANT FOR LOADING A MULTI-LAYER FUEL OUTLET FOR PAPER MACHINES
US4574033A (en) * 1982-07-06 1986-03-04 Kmw Aktiebolag Method and apparatus for delivering a multilayer jet of stock to a forming surface in a papermaking machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH619777A5 (en) * 1977-10-20 1980-10-15 Escher Wyss Gmbh

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598852A (en) * 1946-07-24 1952-06-03 Black Clawson Co Feed regulator for paper machinery
US4086130A (en) * 1976-07-16 1978-04-25 Beloit Corporation Control system and method for a multi-channel paper machine distributor
US4225386A (en) * 1978-03-23 1980-09-30 Aktiebolaget Karlstads Mekaniska Werkstad Headbox for a paper machine
DE3102543A1 (en) * 1980-12-19 1982-07-08 Escher Wyss Gmbh, 7980 Ravensburg PLANT FOR LOADING A MULTI-LAYER FUEL OUTLET FOR PAPER MACHINES
US4574033A (en) * 1982-07-06 1986-03-04 Kmw Aktiebolag Method and apparatus for delivering a multilayer jet of stock to a forming surface in a papermaking machine

Also Published As

Publication number Publication date
EP1069236A2 (en) 2001-01-17
DE19932745A1 (en) 2001-03-22

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