EP1069236A3 - Regulating the pressure in a headbox - Google Patents
Regulating the pressure in a headbox Download PDFInfo
- 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- Withdrawn
Links
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
Landscapes
- 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. 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.
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)
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH619777A5 (en) * | 1977-10-20 | 1980-10-15 | Escher Wyss Gmbh |
-
1999
- 1999-07-14 DE DE1999132745 patent/DE19932745A1/en not_active Withdrawn
-
2000
- 2000-05-15 EP EP00110345A patent/EP1069236A3/en not_active Withdrawn
Patent Citations (5)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
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AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
17P | Request for examination filed |
Effective date: 20040109 |
|
AKX | Designation fees paid |
Designated state(s): AT DE FI SE |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VOITH PATENT GMBH |
|
17Q | First examination report despatched |
Effective date: 20071025 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20080305 |