EP1006327A2 - Séchage de bandes fibreuses - Google Patents

Séchage de bandes fibreuses Download PDF

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Publication number
EP1006327A2
EP1006327A2 EP99121524A EP99121524A EP1006327A2 EP 1006327 A2 EP1006327 A2 EP 1006327A2 EP 99121524 A EP99121524 A EP 99121524A EP 99121524 A EP99121524 A EP 99121524A EP 1006327 A2 EP1006327 A2 EP 1006327A2
Authority
EP
European Patent Office
Prior art keywords
fibrous web
laser radiation
lasers
web
drying
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Withdrawn
Application number
EP99121524A
Other languages
German (de)
English (en)
Other versions
EP1006327A3 (fr
Inventor
Markus Oechsle
Frank Wegehaupt
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
Voith Sulzer Papiertechnik 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 Paper Patent GmbH, Voith Sulzer Papiertechnik Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1006327A2 publication Critical patent/EP1006327A2/fr
Publication of EP1006327A3 publication Critical patent/EP1006327A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/16—Drying webs by electrical heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/008—Controlling the moisture profile across the width of the material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun

Definitions

  • the invention relates to a method and the associated device for drying a fibrous web, in particular a paper, tissue or cardboard web.
  • the fibrous webs are currently used for drying over heated cylinders guided. With this very expensive in terms of space and energy consumption Process often results in an uneven distribution of moisture across the fibrous web. Certain zones are additionally moistened to correct this cross moisture profile or heated, the heating generally inductive, by means of infrared emitters or done with steam. However, these corrective measures are due to the relatively large size Zone widths, the blurred zone boundaries and the low transferable Unsatisfactory energy density. There is also the risk of fire with infrared emitters as well as the energetic disadvantage when moistening.
  • the object of the invention is therefore a method and the associated To create a device for drying a fibrous web, which is not only space-saving is and has a good efficiency, but also a high transferable Enables energy density and an influence on the moisture cross profile.
  • the object was achieved in that the fibrous web Laser radiation is exposed, the frequency is preferably set so that the laser radiation from water better than from the other components of the Fibrous web is absorbed.
  • Laser radiation not only enables a high transferable energy density but also also the formation of small, sharply defined zones, which makes them special suitable for homogenizing the moisture cross profile of the fibrous web, however the entire drying process using laser radiation is also possible.
  • the intensity of the laser radiation should be transverse considered to be controllable in zones separately from the fibrous web. It is also for this advantageous if the extent of the area affected by the laser radiation is controllable at least in the longitudinal direction of the fibrous web. The latter allows the Increase or change in the power to be transmitted with constant Energy density / area.
  • the Lasers are switched off when the fibrous web is torn off.
  • a high energy density and a relatively even effect on the Fibrous web can be achieved when there are free trains when lasers are on are arranged on both sides of the fibrous web.
  • a plurality of lasers 2 are located on both sides, opposite one another with respect to the fibrous web 1 arranged transversely to the fibrous web 1 next to each other. They each form one contiguous row extending over the width of the fibrous web 1, several lasers 2 being combined into a separately controllable zone 4 are. Each zone 4 is connected to a corresponding control and power lines Controller 6 connected.
  • this area has a shield 5. It also has here, for example, the lower row a visible light source 3 for displaying the function and direction of action of the laser 2.
  • the arrangement is at the end of the dry part of a machine Production or refinement of a fibrous web 1 and is used for homogenization the moisture cross profile of the fibrous web 1.
  • the intensity of the laser frame across the fibrous web 1 is considered as well the extension of the area influenced by the laser radiation in the longitudinal direction of the Fibrous web 1 controlled separately in zones. This happens depending on the measured moisture cross profile of the fibrous web 1, with some zones 4 can be switched off if, for example, only the edges are affected should. In addition, all lasers 2 are switched off in the event of a web break.
  • the Lasers 2 have a very short response time and offer the possibility of Transmission of large amounts of energy to a clearly defined area of the Fibrous web 1, since the frequency of the laser radiation is set so that the Laser radiation is predominantly absorbed by the water of the fibrous web 1. If no free move is available or suitable, d. H. the fibrous web 1 of one The roller 2 and / or a belt is supported, so the lasers 2 are on the free side the fibrous web 1 arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Textile Engineering (AREA)
  • Paper (AREA)
  • Drying Of Solid Materials (AREA)
EP99121524A 1998-12-04 1999-10-29 Séchage de bandes fibreuses Withdrawn EP1006327A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19855940A DE19855940A1 (de) 1998-12-04 1998-12-04 Faserstoffbahntrocknung
DE19855940 1998-12-04

Publications (2)

Publication Number Publication Date
EP1006327A2 true EP1006327A2 (fr) 2000-06-07
EP1006327A3 EP1006327A3 (fr) 2001-12-05

Family

ID=7889939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99121524A Withdrawn EP1006327A3 (fr) 1998-12-04 1999-10-29 Séchage de bandes fibreuses

Country Status (3)

Country Link
US (1) US6675494B1 (fr)
EP (1) EP1006327A3 (fr)
DE (1) DE19855940A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003002922A1 (fr) * 2001-06-29 2003-01-09 Adphos Advanced Photonics Technologies Ag Procede et dispositif de sechage et/ou de reticulation ou de chauffage par rayonnement electromagnetique

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10316471A1 (de) * 2003-04-09 2004-10-28 Heidelberger Druckmaschinen Ag Verfahren zum Trocknen einer Druckfarbe auf einem Bedruckstoff und Druckwerk, geeignet zur Durchführung des Verfahrens
DE102004046750A1 (de) * 2003-10-14 2005-06-09 Houben, Alexander, Dipl.-Ing. Verfahren und Vorrichtung zum Trocknen einer Oberfläche
US20090074976A1 (en) * 2007-09-14 2009-03-19 Freking Anthony J Method of reducing mottle and streak defects in coatings
DE102008010201B4 (de) * 2008-02-20 2013-10-24 Manroland Web Systems Gmbh Druckmaschine und Verfahren zum Betreiben einer Druckmaschine
DE102008010200A1 (de) * 2008-02-20 2009-09-03 Manroland Ag Druckmaschine
EP2268417A1 (fr) * 2008-03-26 2011-01-05 3M Innovative Properties Company Procédés de revêtement par glissement de deux ou plusieurs fluides
BRPI0910877A2 (pt) * 2008-03-26 2015-10-06 3M Innovative Proferties Company método para aplicar dois ou mais fluidos como um revestimento de deslizamento
US20110027493A1 (en) * 2008-03-26 2011-02-03 Yapel Robert A Methods of slide coating fluids containing multi unit polymeric precursors
US8240841B2 (en) * 2009-01-03 2012-08-14 David M Caracciolo Pulse drying system
DE102010046758A1 (de) * 2010-09-28 2012-03-29 Eltosch Torsten Schmidt Gmbh Bestrahlungseinheit für Trockner für Druckmaschinen
US9481777B2 (en) 2012-03-30 2016-11-01 The Procter & Gamble Company Method of dewatering in a continuous high internal phase emulsion foam forming process
CN117019579B (zh) * 2023-06-30 2025-10-17 深圳市新嘉拓自动化技术有限公司 一种激光烘干方法及设备

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
US3731520A (en) * 1967-10-05 1973-05-08 Industrial Nucleonics Corp Dryer performance indicator
GB1209335A (en) * 1968-05-02 1970-10-21 Tools Ltd Nv Drying apparatus
CS198481B1 (en) * 1977-05-20 1980-06-30 Cestmir Balcar Multilayer felt,method of and apparatus for manufacturing same
US4271347A (en) * 1978-10-18 1981-06-02 The United States Of America As Represented By The Secretary Of The Treasury Method and apparatus for accelerating chemical reactions using a spread beam deflector with single or multiple reflectors
CH639800A5 (en) * 1980-11-27 1983-11-30 Sicpa Sa Device for treating the free surface of the material making up an object by laser irradiation
US4738752A (en) * 1986-08-12 1988-04-19 Beloit Corporation Heated extended nip press apparatus
US5277761A (en) * 1991-06-28 1994-01-11 The Procter & Gamble Company Cellulosic fibrous structures having at least three regions distinguished by intensive properties
DE3828753C2 (de) * 1988-08-25 1994-05-19 Heidelberger Druckmasch Ag Vorrichtung zum Trocknen von Druckprodukten in einer Druckmaschine
DE3939190A1 (de) * 1989-01-25 1990-08-09 Baldwin Gegenheimer Gmbh Durchlauftrockner von rollenrotationsdruckmaschinen und betrieb eines derartigen durchlauftrockners bei fortdruck und beim zylinderwaschen mit laufender bahn
US5177877A (en) * 1989-12-28 1993-01-12 Am International, Inc. Dryer-fuser apparatus and method for high speed electrophotographic printing device
CA2155223C (fr) * 1990-06-29 1997-11-11 Paul Dennis Trokhan Toile pour fabrication de papier
FI91900C (fi) * 1990-12-17 1994-08-25 Valmet Paper Machinery Inc Menetelmä paperikoneen kuivatusosalla paperin käyristymistaipumuksen vähentämiseksi ja menetelmän toteuttamiseen tarkoitettu kuivatusosa
US5921002A (en) 1993-09-24 1999-07-13 Optimum Air Corporation Radiation curing system
DE19533673A1 (de) * 1995-09-13 1997-03-20 Tech Uni Chemnitz Zwickau I Fu Verfahren zur Trocknung und Wiederbefeuchtung von bedruckten Bogen- und/oder Bahnmaterialien
WO1998031474A1 (fr) * 1997-01-15 1998-07-23 Optimum Air Corporation Systeme et procede permettant de secher et de solidifier des revetements a base d'eau
US6170427B1 (en) 1997-01-15 2001-01-09 Optimum Air Corporation Radiation curing system
US5851352A (en) * 1997-05-12 1998-12-22 The Procter & Gamble Company Soft multi-ply tissue paper having a surface deposited strengthening agent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003002922A1 (fr) * 2001-06-29 2003-01-09 Adphos Advanced Photonics Technologies Ag Procede et dispositif de sechage et/ou de reticulation ou de chauffage par rayonnement electromagnetique

Also Published As

Publication number Publication date
DE19855940A1 (de) 2000-06-08
EP1006327A3 (fr) 2001-12-05
US6675494B1 (en) 2004-01-13

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