Title:
【発明の名称】ペーパウェブ等の装置内被覆乾燥の方法および装置
Document Type and Number:
Japanese Patent JPH07103517
Kind Code:
B2
Abstract:
PCT No. PCT/FI87/00159 Sec. 371 Date Jul. 14, 1989 Sec. 102(e) Date Jul. 14, 1989 PCT Filed Nov. 26, 1987 PCT Pub. No. WO89/04890 PCT Pub. Date Jun. 1, 1989.A method for contact-free drying of a paper or board web or of any other corresponding continuous web. During drying, both infrared radiation and drying air jets are used. The web is carried by the air jets through the dryer free of contact. The moving web is first passed into an infrared drying gap, in which a drying energy pulse of relatively short duration is directed at the web, the power of the energy pulse being substantially higher than the average drying power of the dryer per unit of area. After the infrared drying gap, the web is immediately passed into an airborne web drying gap wherein the web is supported and dried by means of air jets. Air is brought into the infrared unit, which air having been heated in the infrared unit is passed as replacement air and/or drying air for the airborne web drying unit or units placed after the infrared unit. The air flows to be passed into the infrared unit are passed in connection with the inlet gap of the web to both sides of the web so as to form both accompanying and sealing air jet flows.
Inventors:
Repistou, Matty
Ilmannen, Reijo
Carlsson, Marc
Raxo, Sauri
Ilmannen, Reijo
Carlsson, Marc
Raxo, Sauri
Application Number:
JP50005887A
Publication Date:
November 08, 1995
Filing Date:
November 26, 1987
Export Citation:
Assignee:
Valmet Oy
International Classes:
D21F5/00; D21F5/18; D21H25/06; F26B3/28; F26B13/10; F26B13/20; F26B3/30; F26B20/00; (IPC1-7): D21F5/18; D21F5/00; F26B3/30; F26B13/10; F26B20/00
Domestic Patent References:
| JP6076346A | ||||
| JP6264532A | ||||
| JP4710592A |
Attorney, Agent or Firm:
Takao Katori