Multiport cylinder dryer with low thermal resistance and high heat transfer

Title: Multiport cylinder dryer with low thermal resistance and high heat transfer

Abstract

A multiport cylinder dryer for use with drying a web of pulp, paper, or similar material, and a method for drying a moving web of pulp, paper, or similar material are provided. The multiport cylinder dryer includes an outer cylinder dryer surface for transferring heat to a moving web to be dried. A plurality of multiport flow passages are positioned close to the outer cylinder dryer surface. The multiport flow passages are arranged for channeling steam flow for heating the cylinder dryer surface. The multiport cylinder dryer achieves significantly higher drying rates than conventional dryers by minimizing the condensate layer and maximizing the heat transfer surface area. The dominant heat transfer mode in the multiport cylinder dryer is convection, which is significantly more effective than conduction, the dominant heat transfer mode in conventional dryers.

Inventors:: Choi, Stephen U.

Issue Date:: 2002-06-04

Research Org.:: Univ. of Chicago, IL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1531444

Patent Number(s):: 6,397,489

Application Number:: 09/648,693

Assignee:: The University of Chicago (Chicago, IL)

DOE Contract Number:: W-31-109-ENG-38

Resource Type:: Patent

Resource Relation:: Patent File Date: 2000-08-25

Country of Publication:: United States

Language:: English

Citation Formats


                    Choi, Stephen U. Multiport cylinder dryer with low thermal resistance and high heat transfer.  United States: N. p., 2002. 
        Web.

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                    Choi, Stephen U. Multiport cylinder dryer with low thermal resistance and high heat transfer.  United States.

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                    Choi, Stephen U. Tue .  
        "Multiport cylinder dryer with low thermal resistance and high heat transfer".  United States.  https://www.osti.gov/servlets/purl/1531444.

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@article{osti_1531444,

  title        = {Multiport cylinder dryer with low thermal resistance and high heat transfer},

  author       = {Choi, Stephen U.},

  abstractNote = {A multiport cylinder dryer for use with drying a web of pulp, paper, or similar material, and a method for drying a moving web of pulp, paper, or similar material are provided. The multiport cylinder dryer includes an outer cylinder dryer surface for transferring heat to a moving web to be dried. A plurality of multiport flow passages are positioned close to the outer cylinder dryer surface. The multiport flow passages are arranged for channeling steam flow for heating the cylinder dryer surface. The multiport cylinder dryer achieves significantly higher drying rates than conventional dryers by minimizing the condensate layer and maximizing the heat transfer surface area. The dominant heat transfer mode in the multiport cylinder dryer is convection, which is significantly more effective than conduction, the dominant heat transfer mode in conventional dryers.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2002},

  month        = {6}

}

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Works referenced in this record:

Condensate control for dryer drum
patent, May 1979

Justus, Edgar J.
US Patent Document 4,155,177
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Stuchberry, Frederick C.
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Koike, Masaru; Hasegawa, Yasumasa; Shimosaka, Satoru
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Photosensitive material drying apparatus
patent, January 1992

Kurokawa, Toshio
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Paper web dryer and paper moisture profiling system
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Joiner, John R.
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Dryer apparatus for fiber webs
patent, December 2000

Rantala, Pekka
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Gas-fired drying apparatus
patent, December 1998

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Steam-heated roller with cooling system
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Zaoralek, Heinz-Michael
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Water-removing apparatus for papermaking process
patent, July 2000

Stipp, Gordon K.
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Similar Records

Title: Multiport cylinder dryer with low thermal resistance and high heat transfer

Abstract

Citation Formats

Condensate control for dryer drum patent, May 1979

Paper web drying apparatus having a hood with two sections patent, July 1984

Conditioning drum for use in hot water separation of bitumen from mined tar sands patent, July 1976

Method for improved rush transfer to produce high bulk without macrofolds patent, November 1998

Condensate discharging device patent, March 1980

Apparatus containing a work surface heated with a heat carrier medium patent, September 1990

Apparatus for drying veneer sheet patent, April 1984

Photosensitive material drying apparatus patent, January 1992

Paper web dryer and paper moisture profiling system patent, May 1995

Dryer apparatus for fiber webs patent, December 2000

Gas-fired drying apparatus patent, December 1998

Steam-heated roller with cooling system patent, February 2001

Water-removing apparatus for papermaking process patent, July 2000

Condensate control for dryer drum
patent, May 1979

Paper web drying apparatus having a hood with two sections
patent, July 1984

Conditioning drum for use in hot water separation of bitumen from mined tar sands
patent, July 1976

Method for improved rush transfer to produce high bulk without macrofolds
patent, November 1998

Condensate discharging device
patent, March 1980

Apparatus containing a work surface heated with a heat carrier medium
patent, September 1990

Apparatus for drying veneer sheet
patent, April 1984

Photosensitive material drying apparatus
patent, January 1992

Paper web dryer and paper moisture profiling system
patent, May 1995

Dryer apparatus for fiber webs
patent, December 2000

Gas-fired drying apparatus
patent, December 1998

Steam-heated roller with cooling system
patent, February 2001

Water-removing apparatus for papermaking process
patent, July 2000