Bottom screen for fluidized bed apparatus
US4320089A · kind A · utility
15Cited by
4References
9Claims
0Family size
Inventor
Key dates
| Filing date | Mar 19, 1980 |
| Grant date | Mar 16, 1982 |
| Priority date | — |
| Expiry date | Mar 19, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S118/05
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluidized bed apparatus comprises a container 18 and a bottom screen 16. The screen 16 comprises a perforated plate 28 having a plurality of large openings therein above each of which is secured a perforated cone 34. Fluid blown through a duct 12 passes through the perforations in the plate 28 and the perforations in the cones 34 into material 10 which is thereby fluidized. Circulation of the material 10 is rendered more uniform and the risk of damage lessened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.