Title:
高速赤外/対流ドライヤ
Document Type and Number:
Japanese Patent JP3621708
Kind Code:
B2
Abstract:
A combination infrared/convection dryer or oven for drying travelling webs. A shutter assembly is provided between the infrared radiation source 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 across the elements to a centralized return air duct. The return air is pulled into the inlet of a close coupled supply fan which then discharges the air to the nozzles. A portion of the air is also exhausted to 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 and outlet slots. Flotation nozzles 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.
Inventors:
Rhone, Alain W
Quath, Jeffrey Dee
Thesa, Michael Gee
Quath, Jeffrey Dee
Thesa, Michael Gee
Application Number:
JP53294798A
Publication Date:
February 16, 2005
Filing Date:
January 05, 1998
Export Citation:
Assignee:
Megtec Systems Incorporated
International Classes:
D21F5/16; D21F5/18; F26B3/28; F26B13/10; F26B13/20; F26B3/30; F26B23/04; (IPC1-7): F26B3/30; D21F5/16; D21F5/18; F26B13/10; F26B23/04
Domestic Patent References:
| JP61213593A | ||||
| JP7081042A | ||||
| JP10509792A | ||||
| JP50034677B1 |
Foreign References:
| US3284922 | ||||
| US4658512 | ||||
| US5638611 |
Attorney, Agent or Firm:
Kazuo Shamoto
Shosuke Imai
Tadashi Masui
Tadahiko Kurita
Yasushi Kobayashi
Shosuke Imai
Tadashi Masui
Tadahiko Kurita
Yasushi Kobayashi