Evaporative cooling apparatus and method for a fine fiber production process
US5955011A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1996 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Oct 24, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B37/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Fine fibers are formed and carried in a high energy, high temperature gaseous stream to a primary fine fiber collection surface where fine fibers are collected from the gaseous stream. Gases of the gaseous stream along with fine fibers not removed from the gaseous stream by the primary collection surface are drawn through the primary collection surface and formed into an exhaust gas stream which is passed through a secondary fine fiber collection surface to remove additional fibers from the exhaust gas stream before it is discharged to the atmosphere. To reduce the operating temperatures at and surrounding the primary and secondary collection surfaces, the gas streams are cooled by evaporative cooling. Water is sprayed into the gas streams by nozzles, shielded from the gas streams by scoops, so that fibers do not collect on the nozzles and form fiber wads. The spray droplets are sized so that the droplets evaporate before the gas stream being cooled impacts a collection surface so that the fine fibers remain dry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.