Method and apparatus for controlling a fluidized bed
US4198226A · kind A · utility
20Cited by
1References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1978 |
| Grant date | Apr 15, 1980 |
| Priority date | — |
| Expiry date | Sep 21, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B27/052
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A gas-fluidized bed of particulate material is operated by extracting gas from a localized region of the bed to produce an unfluidized static condition of the material in that region. The region may be in the upper part of the fluidized bed, or may be a region adjacent a side opening into the bed where the unfluidized static material obturates the opening. There may be a plurality of unfluidized static regions in the bed. The invention is applicable to the thermal toughening of glass quenched in the fluidized bed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.