EP1035253B1 - Optimierter Faser- oder Papierherstellungsprozess - Google Patents
Optimierter Faser- oder Papierherstellungsprozess Download PDFInfo
- Publication number
- EP1035253B1 EP1035253B1 EP00100843A EP00100843A EP1035253B1 EP 1035253 B1 EP1035253 B1 EP 1035253B1 EP 00100843 A EP00100843 A EP 00100843A EP 00100843 A EP00100843 A EP 00100843A EP 1035253 B1 EP1035253 B1 EP 1035253B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- values
- line
- characteristic parameters
- accordance
- optimize
- 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.)
- Expired - Lifetime
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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
Definitions
- the invention relates to a method for carrying out a fiber or Papermaking process using a plurality of successive Process stages in which by specifiable chemical and physical processes defined process steps performed and process optimization depending on measured values and formed therefrom Characteristics, possibly using state models made become.
- An important process step in the production of paper is the Bleaching of fibrous materials, wherein the respective substance in which it is For example, wood pulp, refiner fabric and / or recycled paper pulp act may, bleaching is subjected to the desired increase to achieve the degree of whiteness of the substance, without compromising the strength of the material undesirable effects on the respective substance.
- pulp processing or the papermaking usually from several Steps existing bleaching equipment essential in terms of achievable qualities is already in practice trying to optimize the bleaching process, and it is already Known, such optimizations in cooking processes related to use with the production of pulps. It is known in this Context in particular, state models and / or process models to be used, on the basis of detected mechanical, physical and / or chemical properties of the pulp or pulp suspension. Based on such state or process models Sub-processes of an overall process, such as optimized the bleaching stage.
- the object of the invention is to provide overall processes in the production and Preparation of fibrous materials or in papermaking both under technological as well as under economic as well as ecological To optimize aspects.
- Embodiment of the invention In addition to the on-line acquisition of parameters can after a Embodiment of the invention also carried out off-line determinations so that on the basis of the discrete values obtained thereby of calculation models an optimization of on-line values in Frame of an auto-calibration module.
- An essential feature of the method according to the invention is also to see that not only the characteristic determination, but also the control and the regulation or optimization on-line takes place, and Although preferably based on known mathematical or business management Algorithms based on fuzzy logic and the like.
- Another essential aspect of the invention is that at least a part and preferably all target and characteristic quantities are transformed by means of an arithmetic unit to a uniform basis, wherein a uniform basis can be in particular a price determined by means of a cost or value determination per unit of quantity.
- a uniform basis can be in particular a price determined by means of a cost or value determination per unit of quantity.
- the bottleneck problem is part of the production planning process from a business perspective.
- the products are defined by price and quantity.
- a mathematical objective function is defined, which is usually designed for profit or production maximization.
- This actual objective function which may thus be a maximization function, a minimization function, or a combination of both, may be constrained by constraints.
- side conditions z For example, a paragraph condition (eg, sales cap) or a capacity condition (eg, capacity bottleneck) may be formulated that further constrain the objective function.
- both the objective function and the secondary conditions are not rigidly formulated, but are adapted to the respective conditions and requirements arising from the current operation (see Hax, H .: Linear Planning Calculation and simplex method as instrument of operational planning, in: ZfhF 1960, p 576 ff.).
- FIG. 1 showing this basic illustration clarifies the context in connection with FIG input relevant to a fiber-papermaking process. and output variables.
- FIG. 1 showing this basic illustration clarifies the context in connection with FIG input relevant to a fiber-papermaking process. and output variables.
- the already mentioned on-line performance determination for which by means of known methods mechanical, physical and / or chemical properties at selected locations of the overall process.
- the raw materials supplied to the overall process are also recorded in the form the entry quantities, whereby - as for the other characteristics applies - a transformation of these sizes on a consistent basis can, e.g. on the basis price per unit of quantity.
- Characteristic of the invention is also that in addition to the target sizes also the materials to be disposed of during the process, especially rejects, sludge and water as well as emissions and used to control and optimize the overall process become. These characteristics are also on a consistent basis transform, so that the given per unit of quantity price, for example for disposal costs and wastewater charges.
- the target quantities are usually the production quantities, but according to the invention again be transformed on a consistent basis can, so that as a target size and mechanical properties and optical Properties can be considered. This is for example possible because the recoverable price of the finished pulp and paper as a sum parameter of all optical and mechanical properties or selected properties.
- the overall process can be understood both under technological as well as under economic as well as ecological Optimize aspects. This also makes it possible that the amount of raw material, the costs of chemicals, the costs of additives, the energy costs, the amount of waste and the disposal costs are minimized can. It is also possible, the respective semi-finished or finished materials produce such that the fluctuation of the technological Characteristics are significantly reduced.
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- Paper (AREA)
- Feedback Control In General (AREA)
Description
Claims (9)
- Verfahren zur Durchführung eines Faser- oder Papierherstellungsprozesses unter Verwendung einer Mehrzahl aufeinanderfolgender Verfahrensstufen, in denen durch vorgebbare chemische und physikalische Abläufe definierte Prozeßschritte durchgeführt und Prozeßoptimierungen in Abhängigkeit von Meßwerten und daraus gebildeten Kenngrößen, ggf. unter Einsatz von Zustandsmodellen, vorgenommen werden,
dadurch gekennzeichnet, daß zumindest die die Zielgrößen des jeweiligen Endprodukts des Verfahrens relevant beeinflussenden Kenngrößen aller einzelnen Verfahrensstufen on-line erfaßt und direkt oder indirekt on-line zur Steuerung bzw. Optimierung des Gesamtverfahrens verwendet werden, wobei Kenngrößen sowohl in Abhängigkeit von den Ausgangsmaterialien bzw. Rohstoffen als auch von den in den aufeinanderfolgenden Verfahrensstufen zugeführten Chemikalien, Hilfsstoffen und Energien sowie den zu entsorgenden Materialien und Emissionen gebildet werden. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß ergänzend zur On-line-Erfassung von Kenngrößen Off-line-Bestimmungen von Meßwerten und Kenngrößen vorgenommen und anhand der erhaltenen diskreten Werte mittels Berechnungsmodellen Optimierungen der jeweils zugehörigen On-line-Werte vorgenommen werden. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß einzelne Verfahrensstufen oder Teilprozesse zu eigenständig gesteuerten und optimierten Modulen zusammengefaßt werden und eine komprimierte bzw. reduzierte Anzahl von in diesen Modulen gebildeten Kenngrößen zur Steuerung und Optimierung des Gesamtverfahrens verwendet wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß zumindest ein Teil der Ziel- und Kenngrößen mittels eines Rechenwerks auf eine einheitliche Basis transformiert wird. - Verfahren nach Anspruch 4,
dadurch gekennzeichnet, daß als einheitliche Basis der Preis pro Mengeneinheit gewählt wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß zumindest ein Teil der Kenngrößen vor ihrer Verwendung zur Steuerung und Optimierung des Gesamtverfahrens gewichtet wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß unter Verwendung der auf eine einheitliche Basis transformierten Kenngrößen im Gesamtverfahren eine Engpaßoptimierung durchgeführt wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Ermittlung der Kenngrößen aus den On-line-Meßwerten unter Verwendung mathematischer oder betriebswirtschaftlicher Algorithmen erfolgt. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß als Zielgrößen insbesondere Produktionsmengen, mechanische und/oder optische Eigenschaften und/oder der Faserstoff- oder Papierpreis vorgegeben werden.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19910910 | 1999-03-11 | ||
DE19910910A DE19910910A1 (de) | 1999-03-11 | 1999-03-11 | Verfahren zur Durchführung eines optimierten Faser- oder Papierherstellungsprozesses |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1035253A1 EP1035253A1 (de) | 2000-09-13 |
EP1035253B1 true EP1035253B1 (de) | 2005-11-23 |
Family
ID=7900633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00100843A Expired - Lifetime EP1035253B1 (de) | 1999-03-11 | 2000-01-17 | Optimierter Faser- oder Papierherstellungsprozess |
Country Status (8)
Country | Link |
---|---|
US (1) | US6577916B1 (de) |
EP (1) | EP1035253B1 (de) |
KR (1) | KR20000062824A (de) |
AT (1) | ATE310849T1 (de) |
BR (1) | BR0001281A (de) |
CA (1) | CA2298333A1 (de) |
DE (2) | DE19910910A1 (de) |
ES (1) | ES2249202T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104704168A (zh) * | 2012-09-28 | 2015-06-10 | 福伊特专利有限公司 | 控制纤维制造过程或造纸过程的纤维料幅的成型的方法 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10160603A1 (de) | 2001-12-10 | 2003-06-26 | Voith Paper Patent Gmbh | Verfahren zur Regelung von Sortiersystemen sowie zur Durchführung dieses Verfahrens geeignetes Sortiersystem |
WO2003060812A2 (en) * | 2002-01-15 | 2003-07-24 | Suvajit Das | Computer-implemented system and method for measuring and improving manufacturing processes and maximizing product research and development speed and efficiency |
SE522691C3 (sv) * | 2002-06-12 | 2004-04-07 | Abb Ab | Dynamisk on-line-optimering av produktionsprocesser |
US7376472B2 (en) | 2002-09-11 | 2008-05-20 | Fisher-Rosemount Systems, Inc. | Integrated model predictive control and optimization within a process control system |
US7016742B2 (en) * | 2002-11-27 | 2006-03-21 | Bahelle Memorial Institute | Decision support for operations and maintenance (DSOM) system |
US7451004B2 (en) * | 2005-09-30 | 2008-11-11 | Fisher-Rosemount Systems, Inc. | On-line adaptive model predictive control in a process control system |
DE102006003637A1 (de) * | 2006-01-26 | 2007-08-02 | Voith Patent Gmbh | Verfahren zur Herstellung oder Behandlung einer Faserstoffbahn |
FI119063B (fi) * | 2006-04-21 | 2008-07-15 | Metso Automation Oy | Menetelmä ohjata kierrätyskuitulinjaa ja kierrätyskuitulinja |
WO2008134885A1 (en) * | 2007-05-04 | 2008-11-13 | Centre De Recherche Industrielle Du Quebec | System and method for optimizing lignocellulosic granular matter refining |
DE102009011217A1 (de) * | 2009-03-04 | 2010-09-09 | Siemens Aktiengesellschaft | Steuerung der erweiterten Trockenpartie einer Papiermaschine |
CA2714235C (en) | 2010-04-27 | 2014-01-07 | Centre De Recherche Industrielle Du Quebec | Method and system for stabilizing dry-based density of wood chips to be fed to a chip refining process |
CN111967180B (zh) * | 2020-07-02 | 2022-07-26 | 华南理工大学 | 造纸纤维特性对成纸力学性能影响程度的定量分析方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5249120A (en) * | 1991-01-14 | 1993-09-28 | The Charles Stark Draper Laboratory, Inc. | Automated manufacturing costing system and method |
CA2118885C (en) * | 1993-04-29 | 2005-05-24 | Conrad K. Teran | Process control system |
DE19510008C2 (de) * | 1995-03-23 | 1997-01-30 | Siemens Ag | Verfahren und Vorrichtung zur Prozeßführung bei der Zellstoff- und/oder Papierherstellung |
DE19519627C2 (de) * | 1995-05-29 | 1999-04-29 | Siemens Ag | Verfahren zur Optimierung der Prozeßführung von Produktionsvorgängen |
US5812404A (en) * | 1996-04-18 | 1998-09-22 | Valmet Corporation | Method for overall regulation of the headbox of a paper machine or equivalent |
DE19653530C1 (de) * | 1996-12-20 | 1998-07-23 | Siemens Ag | Verfahren und Vorrichtung zur Prozeßführung und zur Prozeßoptimierung bei der Herstellung von Zellstoff |
FI974328A (fi) * | 1997-11-25 | 1999-05-26 | Valmet Automation Inc | Menetelmä ja laitteisto paperin ominaisuuksien säätämiseksi |
FI974327A (fi) * | 1997-11-25 | 1999-05-26 | Valmet Automation Inc | Menetelmä ja laitteisto paperin ominaisuuksien säätämiseksi |
US6128540A (en) * | 1998-02-20 | 2000-10-03 | Hagen Method Pty. Ltd. | Method and computer system for controlling an industrial process using financial analysis |
US6157916A (en) * | 1998-06-17 | 2000-12-05 | The Hoffman Group | Method and apparatus to control the operating speed of a papermaking facility |
-
1999
- 1999-03-11 DE DE19910910A patent/DE19910910A1/de not_active Withdrawn
-
2000
- 2000-01-17 DE DE50011667T patent/DE50011667D1/de not_active Expired - Lifetime
- 2000-01-17 ES ES00100843T patent/ES2249202T3/es not_active Expired - Lifetime
- 2000-01-17 EP EP00100843A patent/EP1035253B1/de not_active Expired - Lifetime
- 2000-01-17 AT AT00100843T patent/ATE310849T1/de active
- 2000-02-09 CA CA002298333A patent/CA2298333A1/en not_active Abandoned
- 2000-03-10 BR BR0001281-5A patent/BR0001281A/pt not_active Application Discontinuation
- 2000-03-10 KR KR1020000012058A patent/KR20000062824A/ko not_active Application Discontinuation
- 2000-03-10 US US09/522,536 patent/US6577916B1/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104704168A (zh) * | 2012-09-28 | 2015-06-10 | 福伊特专利有限公司 | 控制纤维制造过程或造纸过程的纤维料幅的成型的方法 |
CN104704168B (zh) * | 2012-09-28 | 2017-03-08 | 福伊特专利有限公司 | 控制纤维制造过程或造纸过程的纤维料幅的成型的方法 |
Also Published As
Publication number | Publication date |
---|---|
BR0001281A (pt) | 2001-01-16 |
KR20000062824A (ko) | 2000-10-25 |
DE19910910A1 (de) | 2000-09-28 |
CA2298333A1 (en) | 2000-09-11 |
DE50011667D1 (de) | 2005-12-29 |
ES2249202T3 (es) | 2006-04-01 |
EP1035253A1 (de) | 2000-09-13 |
ATE310849T1 (de) | 2005-12-15 |
US6577916B1 (en) | 2003-06-10 |
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