EP1530103A1 - Verfahren zur Herstellung einer Faserstoffbahn - Google Patents
Verfahren zur Herstellung einer Faserstoffbahn Download PDFInfo
- Publication number
- EP1530103A1 EP1530103A1 EP04104803A EP04104803A EP1530103A1 EP 1530103 A1 EP1530103 A1 EP 1530103A1 EP 04104803 A EP04104803 A EP 04104803A EP 04104803 A EP04104803 A EP 04104803A EP 1530103 A1 EP1530103 A1 EP 1530103A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- model
- retention
- ash
- retention agent
- dependence
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 5
- 230000014759 maintenance of location Effects 0.000 claims abstract description 43
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 239000000945 filler Substances 0.000 claims abstract description 22
- 238000003908 quality control method Methods 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 230000033228 biological regulation Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000013178 mathematical model Methods 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000001629 suppression Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 239000011111 cardboard Substances 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000011087 paperboard Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0009—Paper-making control systems
- D21G9/0018—Paper-making control systems controlling the stock preparation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S162/00—Paper making and fiber liberation
- Y10S162/09—Uses for paper making sludge
- Y10S162/10—Computer control of paper making variables
- Y10S162/11—Wet end paper making variables
Definitions
- the invention relates to a method for producing a fibrous web, in particular paper and / or board web, as well as one for implementation the method suitable computerized quality control system.
- the invention is based on the object, the method of the beginning as well as the computerized quality control system Avoiding the aforementioned disadvantages further to optimize.
- this object is achieved by a method for Production of a fibrous web, in particular paper and / or board web, in which an automatic ash control and automatic Retention scheme to reduce or suppress a mutual Boosting the two regulations on a model for dependency between the filler addition and the retention agent consumption be linked together accordingly.
- Procedure will be at a respective increase or decrease the amount of filler according to the model for the dependence between the filler addition and the retention agent consumption also the Amount of retention agent increased or decreased.
- the retention agent consumption can be a mutual rocking the ash control and the retention scheme in particular predictive be counteracted.
- a further preferred embodiment is characterized that is a concentration measurement in the white water and / or an ash content measurement or a measure of ash addition amount at least At times, the model is used to any new situations adapt. So it is especially a self-learning system conceivable. This also means that optional signal lines of corresponding Sensors can be connected to the model computer.
- the aforementioned object is also achieved by a Computer-aided quality control system of a paper machine with a automatic ash control and automatic retention control, which has a model for the dependence between the filler addition and the retention agent consumption are linked together to to reduce reciprocal swaying of these two arrangements or to suppress.
- Quality control system is at a respective increase or decrease the amount of filler according to the model for the dependence between the filler addition and the retention agent consumption too the amount of retention agent can be increased or reduced.
- the quality control system may for example be designed so that over the model for the dependence between the filler addition and the Retention agent consumption a reciprocal swelling of the ash control and the retention system is counteracted predictively.
- At the Model calculator for an at least temporary adaptation of the model any new situations at least one sensor connected or is connectable over the or preferably a concentration measurement in the white water and / or an ash content measurement or a measurement the ash addition amount is feasible.
- the corresponding link between the automatic ash control and the automatic retention control can thus in particular by a corresponding programming of the computer-aided quality control system or model computer and, for example, the provision stored linkage tables and / or the like realized be.
- an automatic adaptation of the the link underlying the model to the respective operating situation conceivable.
- the weight per unit area (FG) on the scooter is already within the desired range after about 20 minutes after the start of the grade change, while the size "ash in the paper" is not reached until about 15 further minutes, ie about 35 minutes the beginning of the grade change, is within the target range.
- the consistency of the white water (SW consistency ) shows significant fluctuations.
- the size "ash in the paper” in accordance with the invention coupled ash and retention control (see Figure 2) also after about 20 minutes after the start of the variety change in the desired range.
- the sizes "FG on roller” and “ash in the paper” reach the target range at about the same time, in this case, for example, about 20 minutes after the beginning of the grade change. It can also be seen from FIG. 2 that as a result of the combination according to the invention of the ash and retention control or because of the simultaneous increase in the amount of retention agent, virtually no fluctuations in the size "SW substance density " or no headbox fluctuations occur any more.
Landscapes
- Paper (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
- Figur 1
- ein schematisches Diagramm zur Darstellung eines Sortenwechsels ohne die erfindungsgemäße Kombination der Ascheregelung und Retentionsregelung und
- Figur 2
- ein schematisches Diagramm zur Darstellung eines Sortenwechsels mit erfindungsgemäß kombinierter Asche- und Retentionsregelung.
Claims (10)
- Verfahren zur Herstellung einer Faserstoffbahn, insbesondere Papier- und/oder Kartonbahn, bei dem eine automatische Ascheregelung und eine automatische Retentionsregelung zur Verringerung bzw. Unterdrückung eines gegenseitigen Aufschaukelns der beiden Regelungen über ein Modell für die Abhängigkeit zwischen der Füllstoffzugabe und dem Retentionsmittelverbrauch entsprechend miteinander verknüpft werden.
- Verfahren nach Anspruch 1,
dadurch gekennzeichnet, dass bei einer jeweiligen Erhöhung oder Verringerung der Füllstoffmenge entsprechend dem Modell für die Abhängigkeit zwischen der Füllstoffzugabe und dem Retentionsmittelverbrauch auch die Menge des Retentionsmittels erhöht bzw. verringert wird. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass ein mathematisches Modell für die Abhängigkeit zwischen der Füllstoffzugabe und dem Retentionsmittelverbrauch verwendet wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass über das Modell für die Abhängigkeit zwischen der Füllstoffzugabe und dem Retentionsmittelverbrauch einem gegenseitigen Aufschaukeln der Ascheregelung und der Retentionsregelung prediktiv entgegengewirkt wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass eine Konzentrationsmessung im Siebwasser und/oder eine Aschegehaltsmessung oder eine Messung der Aschezugabemenge zumindest zeitweise dazu verwendet wird, das Modell an eventuell neue Situationen anzupassen. - Computergestütztes Qualitätsregelsystem einer Papiermaschine, insbesondere zur Durchführung des Verfahrens nach einem der vorhergehenden Ansprüche, mit einer automatischen Ascheregelung und eine automatischen Retentionsregelung, die über ein Modell für die Abhängigkeit zwischen der Füllstoffzugabe und dem Retentionsmittelverbrauch miteinander verknüpft sind, um ein gegenseitiges Aufschaukeln dieser beiden Regelungen zu verringern bzw. zu unterdrücken.
- Qualitätsregelsystem nach Anspruch 6,
dadurch gekennzeichnet, dass bei einer jeweiligen Erhöhung oder Verringerung der Füllstoffmenge entsprechend dem Modell für die Abhängigkeit zwischen der Füllstoffzugabe und dem Retentionsmittelverbrauch auch die Menge des Retentionsmittels erhöhbar bzw. verringerbar ist. - Qualitätsregelsystem nach Anspruch 6 oder 7,
dadurch gekennzeichnet, dass als Modell für die Abhängigkeit zwischen der Füllstoffzugabe und dem Retentionsmittelverbrauch ein mathematisches Modell vorgesehen ist. - Qualitätsregelsystem nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass über das Modell für die Abhängigkeit zwischen der Füllstoffzugabe und dem Retentionsmittelverbrauch einem gegenseitigen Aufschaukeln der Ascheregelung und der Retentionsregelung prediktiv entgegengewirkt wird. - Qualitätsregelsystem nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass an den Modellrechner für eine zumindest zeitweise Anpassung des Modells an eventuelle neue Situationen wenigstens ein Sensor angeschlossen bzw. anschließbar ist, über den bzw. die vorzugsweise eine Konzentrationsmessung im Siebwasser und/oder eine Aschegehaltsmessung oder eine Messung der Aschezugabemenge durchführbar ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10351771 | 2003-11-06 | ||
| DE10351771A DE10351771A1 (de) | 2003-11-06 | 2003-11-06 | Verfahren zur Herstellung einer Faserstoffbahn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1530103A1 true EP1530103A1 (de) | 2005-05-11 |
| EP1530103B1 EP1530103B1 (de) | 2008-07-23 |
Family
ID=34428578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04104803A Expired - Lifetime EP1530103B1 (de) | 2003-11-06 | 2004-09-30 | Verfahren zur Herstellung einer Faserstoffbahn |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7435314B2 (de) |
| EP (1) | EP1530103B1 (de) |
| AT (1) | ATE402431T1 (de) |
| DE (2) | DE10351771A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2703062A1 (en) * | 2007-10-29 | 2009-05-07 | Tigenix Limited | Implant delivery device and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6319362B1 (en) * | 1997-11-25 | 2001-11-20 | Metso Paper Automation Oy | Method and equipment for controlling properties of paper |
| WO2004072367A1 (ja) * | 2003-02-13 | 2004-08-26 | Oji Paper Co., Ltd. | 抄紙機の制御方法、制御装置、プログラム及び記憶媒体 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI103678B1 (fi) * | 1998-06-10 | 1999-08-13 | Valmet Corp | Menetelmä paperin tai kartongin neliömassan säätämiseksi paperi- tai k artonkikoneessa |
| DE19906062A1 (de) * | 1999-02-12 | 2000-08-17 | Voith Sulzer Papiertech Patent | Verfahren und Vorrichtung zur Herstellung einer Materialbahn |
| DE10043142A1 (de) * | 2000-08-31 | 2001-03-01 | Voith Paper Patent Gmbh | Verfahren und Vorrichtung zur Regelung eines stoffdichtegeregelten Stoffauflaufs |
-
2003
- 2003-11-06 DE DE10351771A patent/DE10351771A1/de not_active Withdrawn
-
2004
- 2004-09-30 DE DE502004007657T patent/DE502004007657D1/de not_active Expired - Lifetime
- 2004-09-30 AT AT04104803T patent/ATE402431T1/de active
- 2004-09-30 EP EP04104803A patent/EP1530103B1/de not_active Expired - Lifetime
- 2004-11-03 US US10/980,390 patent/US7435314B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6319362B1 (en) * | 1997-11-25 | 2001-11-20 | Metso Paper Automation Oy | Method and equipment for controlling properties of paper |
| WO2004072367A1 (ja) * | 2003-02-13 | 2004-08-26 | Oji Paper Co., Ltd. | 抄紙機の制御方法、制御装置、プログラム及び記憶媒体 |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE402431T1 (de) | 2008-08-15 |
| US20060095154A1 (en) | 2006-05-04 |
| US7435314B2 (en) | 2008-10-14 |
| DE502004007657D1 (de) | 2008-09-04 |
| DE10351771A1 (de) | 2005-06-09 |
| EP1530103B1 (de) | 2008-07-23 |
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