CA2269360A1 - Duct configuration for a through-air drying apparatus in a papermaking machine - Google Patents

Duct configuration for a through-air drying apparatus in a papermaking machine Download PDF

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Publication number
CA2269360A1
CA2269360A1 CA002269360A CA2269360A CA2269360A1 CA 2269360 A1 CA2269360 A1 CA 2269360A1 CA 002269360 A CA002269360 A CA 002269360A CA 2269360 A CA2269360 A CA 2269360A CA 2269360 A1 CA2269360 A1 CA 2269360A1
Authority
CA
Canada
Prior art keywords
roll
ducts
fabric
web
drying apparatus
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
CA002269360A
Other languages
French (fr)
Other versions
CA2269360C (en
Inventor
Dennis Edward Jewitt
Sven Soren Eriksson
Richard Alan Parker
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.)
Valmet Technologies Oy
Original Assignee
Valmet Karlstad AB
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 Valmet Karlstad AB filed Critical Valmet Karlstad AB
Publication of CA2269360A1 publication Critical patent/CA2269360A1/en
Application granted granted Critical
Publication of CA2269360C publication Critical patent/CA2269360C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D21F5/18—Drying webs by hot air
    • D21F5/182—Drying webs by hot air through perforated cylinders

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  • Paper (AREA)

Abstract

A through-air drying apparatus for drying a traveling wet paper web supported on a continuous fabric comprises a dryer roll about which the fabric and web are partially wrapped and which has a foraminous roll face, a supply hood which surrounds the portion of the roll about which the fabric and web are wrapped and which supplies heated air through the fabric and web and through the roll face into the interior of the roll, and an exhaust system for exhausting air from the roll. An axial exhaust passage is formed through at least one head of the roll. An exhaust manifold is connected to the exhaust passage and defines two outlets on opposite sides of the manifold. A pair of movable ducts are sealingly and releasably engaged with the outlets in the opposite sides of the manifold, the ducts being spaced apart on opposite sides of the roll so that an access space is defined between the two ducts for access to the roll and supply hood. The movable ducts are pivotally connected to fixed ducts by bendable bellows sections of the movable ducts and by hinges, and are actuated to move between open and closed positions by motors and jack screws. The movable ducts pivot about axes parallel to the rotation axis of the dryer roll such that the ducts extend axially beyond the roll by about the same axial extent in both the open and closed positions. The duct system is also suitable for supplying air to the interior of a roll in an outward-flow type of through-air drying apparatus.
CA002269360A 1998-11-06 1999-04-19 Duct configuration for a through-air drying apparatus in a papermaking machine Expired - Lifetime CA2269360C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/187,954 1998-11-06
US09/187,954 US6079116A (en) 1998-11-06 1998-11-06 Duct configuration for a through-air drying apparatus in a papermaking machine

Publications (2)

Publication Number Publication Date
CA2269360A1 true CA2269360A1 (en) 2000-05-06
CA2269360C CA2269360C (en) 2007-01-23

Family

ID=22691179

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002269360A Expired - Lifetime CA2269360C (en) 1998-11-06 1999-04-19 Duct configuration for a through-air drying apparatus in a papermaking machine

Country Status (3)

Country Link
US (1) US6079116A (en)
CA (1) CA2269360C (en)
DE (1) DE29919488U1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060213079A1 (en) * 2001-09-17 2006-09-28 Helio Ribeiro Flow-through dryer
US6904700B2 (en) * 2003-09-12 2005-06-14 Kimberly-Clark Worldwide, Inc. Apparatus for drying a tissue web
US6877246B1 (en) * 2003-12-30 2005-04-12 Kimberly-Clark Worldwide, Inc. Through-air dryer assembly
US7225558B2 (en) * 2004-07-30 2007-06-05 Metso Paper Usa, Inc. Cross-machine flow and profile control for through-air devices treating permeable webs
DE102005000794A1 (en) * 2005-01-05 2006-07-13 Voith Paper Patent Gmbh Apparatus and method for producing and / or refining a fibrous web
US8176650B2 (en) * 2005-12-13 2012-05-15 Kimberly-Clark Worldwide, Inc. Method for warming up or cooling down a through-air dryer
US8127462B2 (en) 2006-04-21 2012-03-06 Osvaldo Ricardo Haurie Cylindrical dryer having conduits provided within a plurality of holding plates
US7614161B2 (en) * 2006-04-21 2009-11-10 Osvaldo Ricardo Haurie Cylindrical dryer having conduits for heating medium
DE102006062235A1 (en) * 2006-12-22 2008-06-26 Voith Patent Gmbh Method and device for drying a fibrous web
CN103774486B (en) * 2014-01-10 2017-02-22 广州华工环源绿色包装技术股份有限公司 Normal-pressure superheated steam pulp-molding drying machine
US10533283B2 (en) * 2017-07-18 2020-01-14 Valmet, Inc. Reduced diameter foraminous exhaust cylinder
US11168442B1 (en) * 2020-07-08 2021-11-09 Valmet, Inc. Through-air apparatus with tension cam mechanism
CN113026424A (en) * 2021-02-26 2021-06-25 上海紫江喷铝环保材料有限公司 Anti-efficient manufacture equipment that passes through type light source reappearance anti-fake aluminium-sprayed paper

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US3432936A (en) * 1967-05-31 1969-03-18 Scott Paper Co Transpiration drying and embossing of wet paper webs
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US4103434A (en) * 1972-05-30 1978-08-01 Richard Turner Walker Drying apparatus
CA1066498A (en) * 1976-01-21 1979-11-20 Dominion Engineering Works Limited Paper web streak drying system
GB1589072A (en) * 1977-04-05 1981-05-07 Greenbank Cast Basalt Eng Co Drying apparatus for paper making machines and other cylinder drying machines
AT363320B (en) * 1978-02-03 1981-07-27 Walli Papier Zellstoffwatte FLOW-DRYER FOR DRYING A FIBER FABRIC OR A PAPER SHEET
GB2099970B (en) * 1981-04-27 1985-12-11 Kimberly Clark Ltd Drying paper webs
FI63980C (en) * 1982-03-18 1983-09-12 Valmet Oy FOERFARANDE FOER EFFEKTIVERING AV LUFTKONDITIONERINGEN I MED SLUTEN HUV FOERSEDDA TORKPARTIER I PAPPERSMASKINER
US4523390A (en) * 1982-12-13 1985-06-18 Aer-Overly Corporation Peripheral exhaust system for high velocity dryer
US4758310A (en) * 1986-04-08 1988-07-19 Miller Ray R Belt and drum-type pressing apparatus
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FI83680C (en) * 1988-03-09 1991-08-12 Valmet Paper Machinery Inc FOERFARANDE OCH ANORDNING VID DRAGNINGEN AV BANAN I EN PAPPERSMASKIN SAMT CYLINDER FOER ANVAENDNING VID DRAGNINGEN AV BANAN.
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FI100013B (en) * 1993-03-22 1997-08-15 Valmet Paper Machinery Inc Drying procedure and drying module and drying portions where applied, especially for a fast-moving paper machine
US5515619A (en) * 1993-08-06 1996-05-14 J.M. Voith Gmbh Flexibly mounted sealing strips of a vacuum roll for a web dryer
US5553392A (en) * 1993-11-15 1996-09-10 Tokushu Paper Mfg. Co., Ltd. Process and apparatus for drying sheet materials
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US5416979A (en) * 1994-04-11 1995-05-23 James River Paper Company, Inc. Paper web dryer and paper moisture profiling system
FI102624B1 (en) * 1994-06-23 1999-01-15 Valmet Corp Method and apparatus for drying or cooling a paper web or the like
FI96329C (en) * 1995-04-27 1996-06-10 Valmet Corp Wire and press section hood
US5678321A (en) * 1995-09-12 1997-10-21 Beloit Technologies, Inc. Air caps for two tier double felted dryer
SE504708C2 (en) * 1995-09-13 1997-04-07 Valmet Karlstad Ab Method and apparatus for transferring a fast-running ready-dried fiber web, in particular a tissue web, from a device and along a predetermined path to a subsequent device
FI98944C (en) * 1995-10-25 1997-09-10 Valmet Corp Method and apparatus for drying the coating of a paper web or equivalent
US5784804A (en) * 1996-03-25 1998-07-28 Asea Brown Boveri, Inc. Yankee hood with integral air heating system
US5915813A (en) * 1996-05-21 1999-06-29 Fort James Corporation Apparatus and method for drying a wet web and modifying the moisture profile thereof
US5937538A (en) * 1996-05-21 1999-08-17 Fort James Corporation Through air dryer apparatus for drying webs
AT404605B (en) * 1997-03-14 1999-01-25 Andritz Patentverwaltung METHOD AND DEVICE FOR REDUCING DUST DEPOSITION ON A PAPER MACHINE DRYING HOOD
FI103999B1 (en) * 1997-04-22 1999-10-29 Valmet Corp Drying unit and drying unit applying them
US6003245A (en) * 1997-04-22 1999-12-21 Valmet Corporation Method for optimizing of evaporation drying of paper, runnability, and of paper quality as well as dryer section that makes use of the method in a paper machine
US5992040A (en) * 1998-02-11 1999-11-30 Beloit Technologies, Inc. Drying section apparatus

Also Published As

Publication number Publication date
CA2269360C (en) 2007-01-23
US6079116A (en) 2000-06-27
DE29919488U1 (en) 2000-03-02

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20190423