Method and device for drying or cooling a paper web
US5575084A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F5/182
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method and device for drying and/or cooling a paper web or equivalent in which the web is passed over the circumference of a revolving roll on support of a face of a support wire that faces the roll. The web is dried and/or cooled by means of a gas blown through openings in the mantle of the roll into a space between the outer face of the roll and the web supported by the support wire, whereby a support zone formed by pressurized gas is formed between the outer face of the roll and the web. Humidified gas is passed out of the support zone into the interior of the roll through other openings in the mantle of the roll into a system of exhaust ducts placed inside the roll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.