CA2173140A1 - Impulse Dryer Roll with Shell of High Thermal Diffusivity - Google Patents

Impulse Dryer Roll with Shell of High Thermal Diffusivity

Info

Publication number
CA2173140A1
CA2173140A1 CA2173140A CA2173140A CA2173140A1 CA 2173140 A1 CA2173140 A1 CA 2173140A1 CA 2173140 A CA2173140 A CA 2173140A CA 2173140 A CA2173140 A CA 2173140A CA 2173140 A1 CA2173140 A1 CA 2173140A1
Authority
CA
Canada
Prior art keywords
shell
high thermal
thermal diffusivity
roll
steel alloy
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
CA2173140A
Other languages
French (fr)
Other versions
CA2173140C (en
Inventor
Gregory L. Wedel
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
Mitsubishi Heavy Industries Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2173140A1 publication Critical patent/CA2173140A1/en
Application granted granted Critical
Publication of CA2173140C publication Critical patent/CA2173140C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0281—Wet presses in combination with a dryer roll
    • 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
    • D21F5/02—Drying on cylinders
    • D21F5/022—Heating the cylinders
    • D21F5/024—Heating the cylinders using electrical means
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0253—Heating or cooling the rolls; Regulating the temperature
    • D21G1/028—Heating or cooling the rolls; Regulating the temperature using electrical means

Landscapes

  • Paper (AREA)

Abstract

In a paper-making machine a roll (22) is composed of two parts: a metallic base shell (38), which is constructed of conventional spun-cast steel alloy, and a thin outer shell (40) constructed of a material of high thermal diffusivity.
The outer shell (40) is one to a few tenths of an inch thick and is in intimate contact with the surface of the steel alloy base shell (38). Typical materials of high thermal diffusivity for uses in the outer shell (40) are copper and aluminum. The roll (22) may be formed by flame spraying a layer of copper approximately two-tenths of an inch thick on the surface of a steel alloy base shell (38). The roll (22) is employed where improved heat transfer to a paper web is desired for example in an impulse paper dryer, or in a calendar.
CA002173140A 1993-10-13 1994-08-29 Impulse dryer roll with shell of high thermal diffusivity Expired - Fee Related CA2173140C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13581693A 1993-10-13 1993-10-13
US08/135,816 1993-10-13
PCT/US1994/009566 WO1995010659A1 (en) 1993-10-13 1994-08-29 Impulse dryer roll with shell of high thermal diffusivity

Publications (2)

Publication Number Publication Date
CA2173140A1 true CA2173140A1 (en) 1995-04-20
CA2173140C CA2173140C (en) 2000-10-31

Family

ID=22469826

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002173140A Expired - Fee Related CA2173140C (en) 1993-10-13 1994-08-29 Impulse dryer roll with shell of high thermal diffusivity

Country Status (10)

Country Link
EP (1) EP0723612B1 (en)
JP (1) JP2727135B2 (en)
KR (1) KR960705107A (en)
CN (1) CN1039929C (en)
BR (1) BR9407784A (en)
CA (1) CA2173140C (en)
DE (1) DE69412113T2 (en)
FI (1) FI961626A (en)
PL (1) PL175270B1 (en)
WO (1) WO1995010659A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997016593A1 (en) * 1995-11-02 1997-05-09 Beloit Technologies, Inc. Tissue impulse dryer
FI104100B1 (en) 1998-06-10 1999-11-15 Valmet Corp Integrated paper machine
SE512799C2 (en) * 1998-09-22 2000-05-15 Valmet Karlstad Ab Press section and shoe press therefore and counter roll for the shoe press
US6309512B1 (en) 1998-09-22 2001-10-30 Valmet Karlstad Ab Device for impulse-pressing a web
FI115730B (en) * 2000-05-03 2005-06-30 Metso Paper Inc Band calender and method for calendering a web of material in a band calender
AU2001288175A1 (en) 2000-09-20 2002-04-02 Akzo Nobel N.V. A process for the production of paper
DE10206027C2 (en) * 2002-02-14 2003-12-11 Voith Paper Patent Gmbh Calender and method for smoothing a fibrous web
DE10260509A1 (en) * 2002-12-21 2004-07-01 Voith Paper Patent Gmbh Heated cylinder
US20060276317A1 (en) * 2003-09-01 2006-12-07 Reijo Pietikainen Thermo roll
WO2007031235A1 (en) * 2005-09-15 2007-03-22 Andritz Küsters Gmbh Heatable calender roller
US20080230001A1 (en) 2006-02-23 2008-09-25 Meadwestvaco Corporation Method for treating a substrate
DE102006017460B4 (en) * 2006-04-13 2012-10-25 Andritz Küsters Gmbh Heatable calender roll
CA2999563C (en) * 2009-11-19 2019-03-12 Hydro-Quebec System and method for treating an amorphous alloy ribbon
CN102704311B (en) * 2012-04-28 2015-05-20 程健光 Novel dryer
SE538098C2 (en) * 2013-11-14 2016-03-01 Valmet Aktiebolag A long nip roller with a support member for treating a fiber web
JP6649101B2 (en) * 2016-02-04 2020-02-19 株式会社トライフ Touch roller, paper drying device and paper manufacturing method
AR115182A3 (en) * 2018-10-30 2020-12-09 R Neto S A VERTICAL GEOTHERMAL AIR EXCHANGER
CN110342039B (en) * 2019-08-06 2024-04-05 东莞市五鑫自动化科技有限公司 Full-automatic buzzer vision and audio detection equipment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4621794A (en) * 1981-04-04 1986-11-11 Nippon Steel Corporation Apparatus for producing a grain-oriented electromagnetic steel strip or sheet
US4738752A (en) * 1986-08-12 1988-04-19 Beloit Corporation Heated extended nip press apparatus
US5082533A (en) * 1990-04-10 1992-01-21 Beloit Corporation Heated extended nip press with porous roll layers
DE9100762U1 (en) * 1991-01-24 1991-04-11 J.M. Voith Gmbh, 7920 Heidenheim Dry section
DE9110134U1 (en) * 1991-08-16 1991-09-26 J.M. Voith Gmbh, 7920 Heidenheim Arrangement for transferring a running web

Also Published As

Publication number Publication date
KR960705107A (en) 1996-10-09
EP0723612A1 (en) 1996-07-31
CN1133076A (en) 1996-10-09
BR9407784A (en) 1997-03-18
EP0723612B1 (en) 1998-07-29
CA2173140C (en) 2000-10-31
WO1995010659A1 (en) 1995-04-20
CN1039929C (en) 1998-09-23
FI961626A (en) 1996-06-07
FI961626A0 (en) 1996-04-12
PL175270B1 (en) 1998-12-31
PL313914A1 (en) 1996-08-05
DE69412113T2 (en) 1999-03-25
JPH08510803A (en) 1996-11-12
DE69412113D1 (en) 1998-09-03
JP2727135B2 (en) 1998-03-11

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed