EP1516954A2 - Dispositif et méthode pour déterminer l'état d'au moins une bande sans fin - Google Patents

Dispositif et méthode pour déterminer l'état d'au moins une bande sans fin Download PDF

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Publication number
EP1516954A2
EP1516954A2 EP04104210A EP04104210A EP1516954A2 EP 1516954 A2 EP1516954 A2 EP 1516954A2 EP 04104210 A EP04104210 A EP 04104210A EP 04104210 A EP04104210 A EP 04104210A EP 1516954 A2 EP1516954 A2 EP 1516954A2
Authority
EP
European Patent Office
Prior art keywords
measuring
belt
moisture
web
permeability
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
EP04104210A
Other languages
German (de)
English (en)
Other versions
EP1516954A3 (fr
EP1516954B1 (fr
Inventor
Wolfgang Ulfert
Ralf Pfifferling
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 Patent GmbH
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 Patent GmbH, Voith Paper Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1516954A2 publication Critical patent/EP1516954A2/fr
Publication of EP1516954A3 publication Critical patent/EP1516954A3/fr
Application granted granted Critical
Publication of EP1516954B1 publication Critical patent/EP1516954B1/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
    • D21G9/0036—Paper-making control systems controlling the press or drying section
    • 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
    • D21F1/32—Washing wire-cloths or felts

Definitions

  • the invention relates to a device for assessing the nature of at least one circulating band, in particular of a water-absorbing Dewatering belt and / or a transfer belt in a paper machine, with a device for measuring the permeability of at least a circulating band.
  • the invention has the object that the reliability and accuracy in the Assessment of the nature of the at least one rotating belt by the device of the type mentioned is improved.
  • the invention solves the problem by a device of the aforementioned Kind, the invention, a device for measuring the in at least having a band contained moisture.
  • the invention provides Device further information about the state of at least a circulating band. So if at a hole, at a crack or something like that A high permeability is measured at the hole at the crack or the like, a very low moisture detected. From the simultaneous There is a high permeability and a very low humidity can then be closed to the hole, the crack or the like. Because the Device according to the invention, the measurement of the permeability and the humidity During operation, it can provide permanent accurate information about the current state of the at least one circulating band ranem. As a constant monitoring of the nature of at least one circulating band is possible in this way can be a high quality one be ensured to be produced fibrous web.
  • the time interval between the Permeability measurement and moisture measurement no more than five hours be, since the at least one rotating band changes over time.
  • the time interval between the permeability measurement and the humidity measurement is too large, soiling on the at least one circumferential Band or wear on the at least one circumferential band to distort the information obtained.
  • the moisture measurement and the measurement of permeability at the same Location of at least one revolving band can be performed very accurate information regarding the nature of the at least one to be won.
  • the measuring points are located for this purpose for the permeability and moisture measurement in the strip running direction seen one behind the other. It makes sense that the distances between the two measuring points are relatively short, so that considering the high tape speeds a nearly simultaneous measurement of the two measured values.
  • the two measuring points across the Be arranged strip running direction in which case the distances of Both measuring points should be relatively short in order to obtain reliable information about the nature of the at least one circulating belt receive.
  • the humidity and the permeability at different points of the be measured at least one circumferential band and the distances of the two measuring points are relatively short, one can mathematically the one measuring point, For example, the measuring point where the humidity is measured, the other Measuring point, for example the measuring point at which the permeability is measured will assign.
  • the device according to the invention can also be a device to measure the strip temperature.
  • the temperature of the at least one circulating belt are measured.
  • the determined belt temperature also provides information about the condition of the at least one circulating band. This is how the belt temperature differs at dirty places, holes, cracks and the like of the Belt temperature at clean or faultless belt locations.
  • the measured strip temperature for tempering one for the permeability measurement necessary measuring fluids.
  • the device is connected to a winding machine a device for moisture measurement of a material web, in particular a fibrous web, on. It is also possible that the device according to the invention after a press section a device for moisture measurement of the material web, in particular the fibrous web, has. If that's at least one circulating band is a drainage tape, affects its texture directly the moisture of the material web to be produced. Thus, the measured Moisture of the material web on the winding machine and / or in the press section an explanation of the nature of the at least one circulating Band.
  • the device may be provided with means for determining the Basis weight of the material web, in particular the fibrous web, provided be. If the at least one circulating belt is a drainage belt, its quality also directly influences the basis weight of the product to be produced Web. Thus, the basis weight of the web gives a Information about the nature of the at least one circulating belt.
  • the apparatus may also include means for measuring a hall temperature, along the width of the at least one circumferential band prevails.
  • the hall temperature especially in the nourishing environment of the at least one circulating Tape measured.
  • Heat to the hall environment gives the distribution of the hall temperature along its width information about its nature.
  • the heat radiation varies.
  • you can with the device for measuring the temperature of the hall and the device for Measuring the belt temperature the difference between the two temperatures along the width of the at least one circulating belt are determined, which statements about its nature can also be made.
  • the device for measuring the hall temperature a cleaning unit for cleaning the at least one circulating Bandes be arranged.
  • the device can be a device for measuring the thickness of the at least one circumferential band. deposits increase its thickness, whereas belt abrasions reduce its thickness.
  • the nature of the at least one circulating band also depends directly with the tension prevailing in him together. That's why it is makes sense the device with a device for measuring in at least to equip a circulating band of prevailing tension.
  • a strong one Bandabrieb, dirt on the at least one rotating belt and other influences can increase the tension.
  • the device with a device for Measurement of the filler content of the material web to be equipped may be the pores of at least one circulating Tape clog.
  • the at least one circulating band are closed.
  • the device has a device for Measuring a pressure that prevails in a nip between two rolls, and / or a device for measuring the thickness of the material web. Since that At least one revolving band as a drainage tape, also the thickness of the influenced material web is also of its nature The amount of pressure that prevails in the nip between two rolls depends. Consequently The pressure in the nip between two rollers provides information about the condition of the at least one circulating band. Measuring the thickness of the Material web can advantageously by measuring the web tension, in the web prevails done.
  • the device has a device for Measurement of at least one surface property of the material web, in particular roughness, soiling (pigments, cloth) and the like.
  • the device has a steam blower box and / or a humidifier.
  • the amount of steam leaving and / or amount of moisture depends on the nature of the at least one circulating Bandes along the material web width adjustable.
  • the steam box and / or the humidifier the quality of the material to be produced be compensated if this is due to a deterioration of the state of the at least one band was impaired.
  • the steam box and / or the humidifier the nature of at least to influence a band.
  • the mixing ratio of a fiber and filler suspension and a dilution stream on a headbox along the width of an exit port a nozzle from which the mixture emerges depending on the nature the at least one circumferential band along the web width be managed.
  • Fibers and fillers pollute the at least one circulating belt can, by increasing the dilution flow the Mixing ratio can be changed in such a way that the pollution of the at least one circulating band is reduced.
  • the invention relates to a method for assessing the nature the at least one circulating belt, in particular of the water-absorbing Dewatering belt and / or transfer belt in the paper machine, wherein the permeability of the at least one circulating belt is measured, and in accordance with the invention also in the at least one circulating band contained moisture is measured.
  • the strip temperature to eat.
  • the mixing ratio of the fiber and filler suspension and the dilution flow at the headbox along the width of the outlet opening of Nozzle from which the mixture exits, depending on the nature of the at least a band along the material web width are regulated.
  • Fig. 1 shows a side view of a paper machine 10, with a web of material 11 is produced.
  • the web 11 may be a paper, board or tissue or be other fibrous web.
  • the paper machine 10 has various circumferential bands 12, 13, 14 and 15 on.
  • the band 12 takes over in the illustrated Example, the function of a material web 11 receiving first Oberfilzes, the band 13 the function of a first Unterfilzes, the band 14 the Function of a second upper felt and the band 15, the function of a second Bottom felt.
  • the band 15 is a transfer band.
  • the bands 12, 13, 14 and 15 are provided with measuring devices 20, 21, 22 and 23 (see Fig. 2).
  • the measuring devices 20, 21, 22 and 23 are not with here shown in more detail devices for measuring the permeability and / or Humidity of bands 12, 13, 14 and 15 equipped. This way can be reliable Information about the nature of bands 12, 13, 14 and 15 be won. If a high permeability is measured then it can point to clean bands 12, 13, 14 or 15. But it can also be that the bands 12, 13, 14 or 15 have a hole, a crack or the like, so that even in this case a high permeability is measured. To misinterpret, which can result from the permeability measurement, exclude In addition, the humidity measurement is carried out.
  • the measurement result reliable information, it is useful to moisture measurement and the permeability measurement at the same measuring point or close to each other lying measuring points on the circulating belts 12, 13, 14 or 15 perform.
  • a high permeability is measured, and in the humidity measurement, a very low humidity then leave those measurements on a hole, or on a crack or the like in the bands 12, 13, 14 or 15 close.
  • the moisture measurement a useful supplement to the permeability measurement, the nature the bands 12, 13, 14 or 15 to judge. Except holes, cracks and The same can also be done by the combined permeability and moisture measurement Pollution of the bands 12, 13, 14 or 15 are detected. Then by means of conditioning devices 25, 26, 27 and 28, the soiled Bands 12, 13, 14 or 15 are cleaned.
  • the measuring devices 20, 21, 22 and 23 via measuring signal lines 19 with a Evaluation unit 16 which, if necessary for cleaning the belts 12, 13, 14 or 15 activates the conditioning devices 25, 26, 27 or 28. If that Band 15 is a transfer belt, eliminates the conditioning 28.
  • a device for Measurement of the temperature of the bands 12, 13, 14 and 15 may be provided.
  • the paper machine 10 has a device 18 at the end of a press section 17 for measuring the moisture of the material web 11 and on a winding machine 100 a measuring device 101 for measuring the moisture of the material web 11.
  • the Moisture measured by means 18 and 101 provides information the nature of the bands 12, 13, 14 and 15. Of the devices 18 and 101 measured humidity value is via measuring signal lines 19 to the evaluation unit 16 transmitted.
  • the mixing ratio of a fiber and Filler suspension and a dilution stream along the headbox 103 along the width of an outlet not shown here a nozzle from which the Blend exits, depending on the nature of the bands 12, 13, 14 and 15 regulated along the width of the material web 11.
  • a pollution of the Bands 12, 13, 14 and 15 to avoid by the fiber and fillers is at this control process increases the dilution flow.
  • the steam outlet quantity is dependent governed by the nature of the bands 12, 13, 14 and 15.
  • the quality of the material to be produced be compensated, if this by a deterioration of the condition the bands 12, 13, 14 and 15 was impaired.
  • the belts 12, 13, 14 and 15 are kept in a state that ensures the production of a qualitatively flawless material web.

Landscapes

  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
EP04104210A 2003-09-19 2004-09-02 Dispositif pour déterminer l'état d'au moins une bande sans fin Expired - Lifetime EP1516954B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10343418A DE10343418A1 (de) 2003-09-19 2003-09-19 Vorrichtung und Verfahren zur Beurteilung der Beschaffenheit mindestens eines umlaufenden Bandes
DE10343418 2003-09-19

Publications (3)

Publication Number Publication Date
EP1516954A2 true EP1516954A2 (fr) 2005-03-23
EP1516954A3 EP1516954A3 (fr) 2006-03-29
EP1516954B1 EP1516954B1 (fr) 2008-03-19

Family

ID=34177837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04104210A Expired - Lifetime EP1516954B1 (fr) 2003-09-19 2004-09-02 Dispositif pour déterminer l'état d'au moins une bande sans fin

Country Status (4)

Country Link
US (2) US20050103095A1 (fr)
EP (1) EP1516954B1 (fr)
AT (1) ATE389744T1 (fr)
DE (2) DE10343418A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20101698A1 (it) * 2010-09-17 2012-03-18 Giuseppe Cristini S P A Sa Apparecchio portatile di controllo delle condizioni di un nastro circolante in una macchina di fabbricazione della carta
ITMI20101699A1 (it) * 2010-09-17 2012-03-18 Giuseppe Cristini S P A Sa Apparecchiatura e metodo di controllo delle condizioni di un nastro circolante in una macchina di fabbricazione della carta
WO2013171195A1 (fr) * 2012-05-16 2013-11-21 Voith Patent Gmbh Procédé de détection de l'encrassement d'un habillage de machine à papier et habillage de machine à papier
ITMI20132213A1 (it) * 2013-12-27 2015-06-28 Giuseppe Cristini S P A Sa Apparecchiatura e metodo per controllare le condizioni di almeno un nastro circolante in una macchina di fabbricazione della carta e macchina di fabbricazione della carta comprendente detta apparecchiatura
IT201900018350A1 (it) * 2019-10-09 2021-04-09 Binet Sul Liri Eng Fabrics S P A Sistema e metodo di rilevamento di una zona di criticità in un feltro

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Publication number Priority date Publication date Assignee Title
US7938935B2 (en) * 2007-10-11 2011-05-10 Honeywell Asca Inc. Infrared measurement of paper machine clothing condition
US9540769B2 (en) 2013-03-11 2017-01-10 International Paper Company Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press
FI125811B (en) * 2013-05-29 2016-02-29 Valmet Automation Oy Track measurement
US9797788B2 (en) 2014-05-02 2017-10-24 International Paper Company Method and system associated with a sensing roll including pluralities of sensors and a mating roll for collecting roll data
US10378980B2 (en) 2014-05-02 2019-08-13 International Paper Company Method and system associated with a sensing roll and a mating roll for collecting roll data
US9804044B2 (en) 2014-05-02 2017-10-31 International Paper Company Method and system associated with a sensing roll and a mating roll for collecting data including first and second sensor arrays
US10370795B2 (en) 2015-06-10 2019-08-06 International Paper Company Monitoring applicator rods and applicator rod nips
US9816232B2 (en) 2015-06-10 2017-11-14 International Paper Company Monitoring upstream machine wires and felts
US9863827B2 (en) 2015-06-10 2018-01-09 International Paper Company Monitoring machine wires and felts
US9677225B2 (en) 2015-06-10 2017-06-13 International Paper Company Monitoring applicator rods
US9696226B2 (en) 2015-06-10 2017-07-04 International Paper Company Count-based monitoring machine wires and felts
US9534970B1 (en) 2015-06-10 2017-01-03 International Paper Company Monitoring oscillating components
CN106442232B (zh) * 2016-09-18 2018-12-14 上海理工大学 基于动态称重的颗粒物料分类装置和方法

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US5349845A (en) * 1992-04-07 1994-09-27 Tamfelt Oy Ab Apparatus for measuring the condition of a felt in a paper machine
DE19860567A1 (de) * 1997-06-25 2000-06-29 Voith Sulzer Papiermasch Gmbh Verfahren und Vorrichtung zum Reinigen eines Transportbandes
EP1225270A2 (fr) * 2001-01-18 2002-07-24 Voith Paper Patent GmbH Procédé pour le conditionnement d' une bande en mouvement

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FI77119C (fi) * 1987-09-23 1989-01-10 Valmet Paper Machinery Inc Foerfarande och anordning foer maetning av luftgenomslaeppningsfoermaogan hos luftgenomslaeppliga vaevnader i synnerhet en vira eller en filt i en pappersmaskin.
FI100099B (fi) * 1988-11-17 1997-09-30 Valmet Paper Machinery Inc Menetelmä ja laite paperirainan rullauksessa
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US6284100B1 (en) * 1997-01-24 2001-09-04 Valmet Corporation Method and apparatus for controlling a headbox in a paper machine
FI111283B (fi) * 1997-10-20 2003-06-30 Metso Paper Inc Paperikoneen tai paperin jälkikäsittelykoneen nipin läpi kulkevan pinnan likaantumisen ja/tai vaurioitumisen havaitsemismenetelmä
DE19911395A1 (de) * 1999-03-15 2000-09-21 Voith Sulzer Papiertech Patent Vorrichtung zum Bestimmen von Eigenschaften einer laufenden Materialbahn und/oder einer Maschine zu deren Herstellung und/oder Veredelung
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US5349845A (en) * 1992-04-07 1994-09-27 Tamfelt Oy Ab Apparatus for measuring the condition of a felt in a paper machine
DE19860567A1 (de) * 1997-06-25 2000-06-29 Voith Sulzer Papiermasch Gmbh Verfahren und Vorrichtung zum Reinigen eines Transportbandes
EP1225270A2 (fr) * 2001-01-18 2002-07-24 Voith Paper Patent GmbH Procédé pour le conditionnement d' une bande en mouvement

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20101698A1 (it) * 2010-09-17 2012-03-18 Giuseppe Cristini S P A Sa Apparecchio portatile di controllo delle condizioni di un nastro circolante in una macchina di fabbricazione della carta
ITMI20101699A1 (it) * 2010-09-17 2012-03-18 Giuseppe Cristini S P A Sa Apparecchiatura e metodo di controllo delle condizioni di un nastro circolante in una macchina di fabbricazione della carta
WO2012035521A1 (fr) * 2010-09-17 2012-03-22 S.A. Giuseppe Cristini S.P.A. Appareil portatif permettant de contrôler la condition d'une bande en circulation dans une machine à papier
CN103328721A (zh) * 2010-09-17 2013-09-25 S.A.朱塞佩克里斯蒂尼有限公司 用于控制造纸机中的循环带的状况的手持设备
US8778141B2 (en) 2010-09-17 2014-07-15 S.A. Giuseppe Cristini S.P.A. Hand-held apparatus for controlling the condition of a circulating band in a papermaking machine
CN103328721B (zh) * 2010-09-17 2015-11-25 S.A.朱塞佩克里斯蒂尼有限公司 用于控制造纸机中的循环带的状况的手持设备
WO2013171195A1 (fr) * 2012-05-16 2013-11-21 Voith Patent Gmbh Procédé de détection de l'encrassement d'un habillage de machine à papier et habillage de machine à papier
CN104302833A (zh) * 2012-05-16 2015-01-21 福伊特专利公司 用于检测造纸机绷网的污染的方法和造纸机绷网
ITMI20132213A1 (it) * 2013-12-27 2015-06-28 Giuseppe Cristini S P A Sa Apparecchiatura e metodo per controllare le condizioni di almeno un nastro circolante in una macchina di fabbricazione della carta e macchina di fabbricazione della carta comprendente detta apparecchiatura
WO2015097682A1 (fr) * 2013-12-27 2015-07-02 S.A. Giuseppe Cristini S.P.A. Appareil et procédé de contrôle des conditions d'au moins une bande circulant dans une machine de fabrication du papier et machine de fabrication du papier comprenant ledit appareil
US10132035B2 (en) 2013-12-27 2018-11-20 S.A. Giuseppe Cristini S.P.A. Method for controlling the conditions of at least one band circulating in a paper making machine
IT201900018350A1 (it) * 2019-10-09 2021-04-09 Binet Sul Liri Eng Fabrics S P A Sistema e metodo di rilevamento di una zona di criticità in un feltro

Also Published As

Publication number Publication date
US7506550B2 (en) 2009-03-24
US20050103095A1 (en) 2005-05-19
DE502004006557D1 (de) 2008-04-30
ATE389744T1 (de) 2008-04-15
EP1516954A3 (fr) 2006-03-29
EP1516954B1 (fr) 2008-03-19
DE10343418A1 (de) 2005-04-21
US20080087073A1 (en) 2008-04-17

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