EP1249532A2 - Procédé et installation pour contrôle de la formation - Google Patents

Procédé et installation pour contrôle de la formation Download PDF

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Publication number
EP1249532A2
EP1249532A2 EP02007538A EP02007538A EP1249532A2 EP 1249532 A2 EP1249532 A2 EP 1249532A2 EP 02007538 A EP02007538 A EP 02007538A EP 02007538 A EP02007538 A EP 02007538A EP 1249532 A2 EP1249532 A2 EP 1249532A2
Authority
EP
European Patent Office
Prior art keywords
formation
retention
value
different
consistency
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
Application number
EP02007538A
Other languages
German (de)
English (en)
Other versions
EP1249532A3 (fr
EP1249532B1 (fr
Inventor
Michael Dr. Schwarz
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
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Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1249532A2 publication Critical patent/EP1249532A2/fr
Publication of EP1249532A3 publication Critical patent/EP1249532A3/fr
Application granted granted Critical
Publication of EP1249532B1 publication Critical patent/EP1249532B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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 and a plant for producing a Fibrous web, in particular paper or cardboard web.
  • Retention is used in the previously known plants for paper production about the measured material densities in the white water and in the material feed for the headbox determined online and by regulation via the Retention agent amount or amounts kept constant.
  • An acquaintance Paper system with such a retention scheme is shown schematically in the Figure 1 shown.
  • This method which is based on a regulation of retention, shows, among other things: the disadvantage that the formation increases with increasing retention gets worse. To avoid bad formation the retention must be at a maximum security discount to the maximum possible retention can be set.
  • the structure and the degree of involvement is under formation under formation is generally the structure and degree of uniformity fiber distribution in the fibrous web, e.g. Paper, measured or judges e.g. by means of transmitted light.
  • the Formation is commonly referred to as the "review" of the fibrous web or of the paper. Retention is the percentage of the sieve or the seven retained mass to the total applied to the sieve To understand mass.
  • the aim of the invention is to provide an improved method and an improved To create system of the type mentioned, in which the aforementioned Disadvantages are eliminated.
  • this object is achieved by a method for the production a fibrous web, in particular paper or cardboard, at which the formation of the fibrous web is measured online as a control variable and via an automatic formation control on a predefinable Target level is maintained.
  • the formation can in particular be changed accordingly the addition amount of at least one retention agent on the predeterminable Target level are maintained.
  • the retention process is constantly at the maximum possible value held.
  • the formation control can be carried out in different ways become. The following are just a few examples called.
  • the formation can be adjusted or regulated by changing or increasing or reducing two retention agent mass flows Q R1 , Q R2 at a constant ratio Q R1 / Q R2 .
  • Another possibility is e.g. in that the formation is measured the measured value is compared with a target value, for adjustment the formation to the setpoint, the addition of a first retention agent of a dual system is set accordingly and for adjustment the highest possible level of retention second retention means of the dual system or the relationship between the addition amounts of the two retention aids are adjusted as far as until the formation deteriorates again.
  • the retention scheme can be done in a conventional manner, in particular faster than the formation regulation.
  • the two different retention agents can be, for example, polymers with different charge density (anionic / cationic) and / or different molecular weight. You can the two different retention agents, for example polyethyleneimine (PEI) and polyacrylamide (PAM).
  • PEI polyethyleneimine
  • PAM polyacrylamide
  • the first retention agent comprises a polymer, e.g. polyacrylamide, and the second retention agent, inorganic microparticles, e.g. Bentonite, Hydrocol, etc. It can thus, for example, be a polymer for coarse flocculation and a means for fine flocculation.
  • This substance-dependent relationship between formation and retention can be taken into account in the control algorithm. This can take place, for example, as part of a formation control superimposed on a retention control or by the ratio Q R1 / Q R2 of the mass flows of the retention means of the dual system also being selected depending on the type of fiber (type of raw material).
  • the plant according to the invention for producing a fibrous web in particular Paper or board web, correspondingly includes an automatic Formation control, in which the formation of the fibrous web as The controlled variable is measured online and kept at a predefinable target level becomes.
  • Fig. 2 shows a schematic representation of an exemplary embodiment a system 10 according to the invention for producing a fibrous web 12, which is in particular a paper or cardboard web can act.
  • the system 10 comprises a constant one Part, a paper machine and a formation controller 13 for regulation the formation.
  • the formation controller 13 is used for quality control, where the formation leads the retention.
  • the formation can be changed by changing the Amount of at least one retention agent added to the predeterminable Target level are maintained.
  • the retention agent flow rate is in a line 17 e.g. correspondingly changed via a flow controller 18, to this end receives a corresponding setpoint from the formation controller 13. through of the flow regulator 18 (FIC, flow indicated control) becomes the retention agent flow measured in line 17 and with the relevant the setpoint value supplied by the formation controller 13 is compared.
  • the flow controller 18 On line 17 is also an actuator 19 which can be acted upon by the flow controller 18, in particular a valve is provided through which the retention agent flow then adjusted accordingly, i.e. adjusted to the setpoint becomes.
  • FIG. 2 two such are exemplified by a material density value Input variables formed for the formation controller 13 indicated and designated with "20" or "24".
  • a manipulated variable output by the formation controller 13 can then do this are used, the mass or volume flow of at least one retention agent Set so that the formation value is the desired one Takes on size. In the present case, this can, for example, as already explained done via at least one flow controller 18.
  • the volume flow Q L of low consistency C L is preferably white water I.
  • the measuring point in question is designated a).
  • the white water consistency can also be measured at other points.
  • Another possible measuring point is designated by b) in FIG.
  • the mixing pump 26 is switched off the white water I also fed thick matter.
  • the white water II is fed to the fiber recovery.
  • the retention agent not only increases the retention of the solid particles, but also affects the formation. Because the formation of the finished Fiber web 12 is measured online, the retention can be ongoing are kept at the maximum possible value.
  • retention can always be be kept constant at a high level.
  • the formation e.g. by changing the ratio of the added amounts accordingly of the two retention aids at the predetermined target level being held.
  • the formation can be adjusted or regulated, for example, by changing or increasing or reducing two retention agent mass flows Q R1 , Q R2 at a constant ratio Q R1 / Q R2 .
  • Another possibility is e.g. in that the formation is measured the measured value is compared with a target value, for adjustment the formation to the setpoint, the addition of a first retention agent of a dual system is set accordingly and for adjustment the highest possible level of retention second retention means of the dual system or the relationship between the addition amounts of the two retention aids are adjusted as far as until the formation deteriorates again.
  • Figure 3 shows a schematic representation an exemplary control system of such an embodiment the system according to the invention.
  • the formation control comprising the formation controller 13 can be combined with a conventional retention control comprising a retention controller 28.
  • a control loop for formation control, comprising controller 13, is superimposed on the control loop for retention control comprising controller 28.
  • the retention regulation can be faster than the formation regulation.
  • the formation controller 13 delivers a signal F to the retention controller 28, via which the material density value 24 of low consistency C L and / or the output value 30 of the retention controller 28 can be influenced directly.
  • Figure 4 shows a schematic partial representation of the control system Another embodiment of the plant for manufacturing according to the invention a fibrous web, which differs from that of Figure 2 essentially distinguishes that in the dual system both a first retention agent 1 and a second retention agent 2 is added.
  • the retention regulator is provided 18 from the parent formation controller 13 a setpoint for the mass or volume flow of the first retention agent 1 as Function of the formation.
  • the second retention agent 2 is controlled by a ratio regulator 18 ' readjusted.
  • the ratio controller 18 ' receives a target value for the ratio from the higher-level formation controller 13, this setpoint depends on the retention, and / or the formation and / or at least one substance parameter such as the type of fabric (e.g. short fiber, Long fiber, recycled fiber, mixtures thereof, etc.).
  • this control system can, for example, at least essentially be designed again like that corresponding to each other Parts are assigned the same reference symbols.
  • FIG. 5 shows a schematic partial representation of the control system Another embodiment of the plant for manufacturing according to the invention a fibrous web. This embodiment is compared to that according to Figure 4 through a feed line 32 of part of the white water I directly to Headbox 22 added.
  • This feed line 32 becomes sectional in the case of dilution water headboxes Cross section control of the basis weight is required (see e.g. ModuleJet).
  • this white water partial volume flow flow indicated control (FIC) and flows directly from the white water tank 34 to the headbox 22.
  • the consistency value Q M ie the relevant value after the mixing point, can, but need not, be supplied to the formation controller 13 via the measuring device 20 instead of the consistency measurement value C H before the mixing point of the white water partial flow I and the volume flow Q H.
  • the two different retention agents can be used for example polymers with different charge density (anionic / cationic) and / or different molecular weights include.
  • the two different retention agents include polyethyleneimine (PEI) and polyacrylamide (PAM).
  • a polymer as the first retention agent, e.g. Polyacrylamide, and inorganic as a second retention agent Microparticles, e.g. Bentonite, Hydrocol, etc. to use. So it can for example a polymer for coarse flocculation and an agent for fine flocculation be used.
  • This substance-dependent relationship between formation and retention can be taken into account in the control algorithm. This can be done, for example, as part of a formation control superimposed on a retention control (cf. in particular FIG. 3) or by selecting the ratio Q R1 / Q R2 of the mass flows of the retention agents of the dual system depending on the type of fiber (raw material).

Landscapes

  • Paper (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
EP02007538A 2001-04-12 2002-04-03 Procédé et installation pour contrôle de la formation Expired - Lifetime EP1249532B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10118508A DE10118508A1 (de) 2001-04-12 2001-04-12 Verfahren und Anlage zur Herstellung einer Faserstoffbahn
DE10118508 2001-04-12

Publications (3)

Publication Number Publication Date
EP1249532A2 true EP1249532A2 (fr) 2002-10-16
EP1249532A3 EP1249532A3 (fr) 2004-01-02
EP1249532B1 EP1249532B1 (fr) 2006-12-27

Family

ID=7681523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02007538A Expired - Lifetime EP1249532B1 (fr) 2001-04-12 2002-04-03 Procédé et installation pour contrôle de la formation

Country Status (5)

Country Link
US (1) US6805772B2 (fr)
EP (1) EP1249532B1 (fr)
AT (1) ATE349569T1 (fr)
CA (1) CA2381496C (fr)
DE (2) DE10118508A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1801288A1 (fr) * 2005-12-24 2007-06-27 Voith Patent GmbH Procédé et installation pour la fabrication d'une bande fibreuse
US20150292158A1 (en) * 2012-09-28 2015-10-15 Voith Patent Gmbh Method for controlling the formation of a fiber web of a fiber or paper producing process

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20012175A7 (fi) * 2001-11-09 2003-05-10 Metso Paper Automation Oy Menetelmä ja laitteisto viiraosan toiminnan säätämiseksi
DE10317720A1 (de) * 2003-04-17 2005-02-17 Voith Paper Patent Gmbh Stoffauflauf
DE102004063005A1 (de) 2004-12-22 2006-07-13 Basf Ag Verfahren zur Herstellung von Papier, Pappe und Karton
DE102005010404B4 (de) * 2005-03-07 2009-07-09 Siemens Ag Verfahren zur Regelung eines Dosiersystems bei der Papierherstellung und Vorrichtung hierzu
US20060293763A1 (en) * 2005-06-08 2006-12-28 Rivard James P Process analysis tool
DE102005051656A1 (de) * 2005-10-28 2007-05-03 Voith Patent Gmbh Verfahren und Vorrichtung zur Herstellung einer Faserstoffbahn
US7588663B2 (en) * 2006-10-20 2009-09-15 Kimberly-Clark Worldwide, Inc. Multiple mode headbox
DE102010041052A1 (de) 2010-09-20 2012-03-22 Voith Patent Gmbh Verfahren zum Regeln der Formation einer Faserstoffbahn
US9540770B2 (en) * 2014-09-25 2017-01-10 Honeywell Limited Modular sensing system for web-based applications
WO2021154560A1 (fr) * 2020-01-30 2021-08-05 Kimberly-Clark Worldwide, Inc. Produits de papier sanitaire et domestique comprenant des fibres réticulées

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US89479A (en) * 1869-04-27 Improvement in water-closets
US4648712A (en) * 1985-02-04 1987-03-10 Champion International Corporation Apparatus and method for analyzing parameters of a fibrous substrate
CA1222319A (fr) * 1985-05-16 1987-05-26 Cip Inc. Dispositif d'analyse de la mise en forme d'un tissu de papier
JPH01260091A (ja) * 1988-04-04 1989-10-17 Aikawa Tekko Kk 抄紙機等の運動制御方法
DE3822783A1 (de) * 1988-07-06 1990-01-11 Basf Ag Verfahren zur steuerung der retentionsmittelzugabe bei der papierherstellung
US5622602A (en) * 1989-05-31 1997-04-22 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Apparatus for controlling the degree of paper fiber variation
US5393378A (en) * 1989-05-31 1995-02-28 Ishikawajima-Harima Jukogyo Kabushiki Kaishi Method for measuring and controlling fiber variations in paper sheet
US5314581A (en) * 1991-12-10 1994-05-24 Betz Paperchem, Inc. Apparatus for simulating processing parameters and predicting variables in a papermaking operation including sequential pulsation, gravity and vacuum drainage, fines retention and paper formation
DE19634997C2 (de) * 1996-08-30 1999-08-05 Voith Sulzer Papiermasch Gmbh Regeleinrichtung mit einer Sensoren-Mehrzahl
DE19736048A1 (de) * 1997-08-20 1999-02-25 Voith Sulzer Papiermasch Gmbh Vorrichtung und Verfahren zur Steuerung oder Regelung eines Bahneigenschaftsprofils
US6086716A (en) * 1998-05-11 2000-07-11 Honeywell-Measurex Corporation Wet end control for papermaking machine
FI103822B (fi) * 1998-06-16 1999-09-30 Valmet Corp Menetelmä flokkisuuden optimoimiseksi
DE19835295A1 (de) * 1998-08-05 2000-02-10 Voith Sulzer Papiertech Patent Verfahren zur Einstellung eines gleichmäßigen Eigenschaftsquerprofils einer Papierbahn
US6301373B1 (en) * 1998-10-01 2001-10-09 Mcgill University Paper quality determination and control using scale of formation data
DE19922817A1 (de) * 1999-05-19 2000-11-23 Voith Sulzer Papiertech Patent Vorrichtung und Verfahren zur Steuerung oder Regelung des Flächengewichts einer Papier- oder Kartonbahn
US6290816B1 (en) * 1999-07-21 2001-09-18 Voith Sulzer Paper Technology North America, Inc. Paper machine with closed loop control system
DE10043142A1 (de) * 2000-08-31 2001-03-01 Voith Paper Patent Gmbh Verfahren und Vorrichtung zur Regelung eines stoffdichtegeregelten Stoffauflaufs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1801288A1 (fr) * 2005-12-24 2007-06-27 Voith Patent GmbH Procédé et installation pour la fabrication d'une bande fibreuse
US20150292158A1 (en) * 2012-09-28 2015-10-15 Voith Patent Gmbh Method for controlling the formation of a fiber web of a fiber or paper producing process

Also Published As

Publication number Publication date
ATE349569T1 (de) 2007-01-15
EP1249532A3 (fr) 2004-01-02
US20020179268A1 (en) 2002-12-05
US6805772B2 (en) 2004-10-19
CA2381496C (fr) 2008-09-02
DE50209044D1 (de) 2007-02-08
CA2381496A1 (fr) 2002-10-12
EP1249532B1 (fr) 2006-12-27
DE10118508A1 (de) 2002-10-17

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