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CA2530072A1 - High speed infrared/convection dryer - Google Patents

High speed infrared/convection dryer Download PDF

Info

Publication number
CA2530072A1
CA2530072A1 CA002530072A CA2530072A CA2530072A1 CA 2530072 A1 CA2530072 A1 CA 2530072A1 CA 002530072 A CA002530072 A CA 002530072A CA 2530072 A CA2530072 A CA 2530072A CA 2530072 A1 CA2530072 A1 CA 2530072A1
Authority
CA
Canada
Prior art keywords
web
air
infrared
oven
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.)
Granted
Application number
CA002530072A
Other languages
French (fr)
Other versions
CA2530072C (en
Inventor
Allan W. Rogne
Jeffrey D. Quass
Michael G. Tesar
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.)
Durr Megtec LLC
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
Priority claimed from US08/796,009 external-priority patent/US5867920A/en
Application filed by Individual filed Critical Individual
Publication of CA2530072A1 publication Critical patent/CA2530072A1/en
Application granted granted Critical
Publication of CA2530072C publication Critical patent/CA2530072C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Drying Of Solid Materials (AREA)
  • Paper (AREA)

Abstract

A combination infrared/convection dryer or oven (10) for drying traveling webs (W). A shutter assembly (8) is provided between the infrared radiation source (16) and the moving web in order to selectively expose the web to infrared radiation. Drying efficiency is optimized by adding heated impinged air at high velocity on the machine direction ends and between the infrared elements. The air being discharged on the web is heated as it is pulled into the inlet of a close coupled supply fan (28) which then discharges the air to the nozzles. A portion of the air is also exhausted at atmosphere to maintain the oven enclosure in a negative pressure state, thus drawing fresh make-up air into the oven housing through the web inlet (12) and outlet (13) slots. Flotation nozzles (151, 152) can be used where contactless support of the running web is desired. Enhanced drying of the web and/or a coating on the web at high speed is achieved without a concomitant increase in dryer length.
CA002530072A 1997-02-05 1998-01-05 High speed infrared/convection dryer Expired - Fee Related CA2530072C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/796,009 1997-02-05
US08/796,009 US5867920A (en) 1997-02-05 1997-02-05 High speed infrared/convection dryer
CA002277773A CA2277773C (en) 1997-02-05 1998-01-05 High speed infrared/convection dryer

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002277773A Division CA2277773C (en) 1997-02-05 1998-01-05 High speed infrared/convection dryer

Publications (2)

Publication Number Publication Date
CA2530072A1 true CA2530072A1 (en) 1998-08-06
CA2530072C CA2530072C (en) 2007-05-22

Family

ID=35874881

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002530072A Expired - Fee Related CA2530072C (en) 1997-02-05 1998-01-05 High speed infrared/convection dryer

Country Status (1)

Country Link
CA (1) CA2530072C (en)

Also Published As

Publication number Publication date
CA2530072C (en) 2007-05-22

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20180105