Counter reflector and method of drying a web with the aid of same
US4915154A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1987 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Dec 23, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B3/283
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A counter reflector for use in drying webs, e.g. in a paper making machine, receives heat radiation, which has passed through the paper and returns the energy to the web by reflection. The counter reflector consists of a frame, glass ceramic shields (5) facing the paper web and having a chamber (14) to be pressurized with a drying gas, which issues through openings (10, 11, 12, 13) in and between the glass ceramic shields (5) and thus, the said of the paper web facing the counter reflector is dried by reflected heat radiation as well as warm gas flow in a continuous and steady way, resulting in easily controlled drying/curing conditions in the paper web. The issuing gas flow also serves to pressurize and thus stabilize the space between the counter reflector and the adjacent web and to keep away the latter from the former when saturated with heat. The counter reflector is provided to entrap all further heat which is generated in the drying/curing zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.