Fluidized bed apparatus for treating particulate materials
US5282321A · kind A · utility
Inventor
Key dates
| Filing date | Dec 22, 1992 |
| Grant date | Feb 1, 1994 |
| Priority date | — |
| Expiry date | Dec 22, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27B15/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A ring of baffle plates (36) with intermediate spaces (38) in which a rising gas stream is given a twist is arranged in a vessel (10) between an entrance space (30, 50) and a fluidized bed space (60) located above the same. Nozzles (40) are disposed in individual intermediate spaces (38) between a pair of baffle plates (36) each for spraying fluidizable substances into the gas stream. The entrance space comprises a first inlet chamber (30) with which only intermediate spaces (38) without nozzles (40) between baffle plates (36) communicate. The intermediate spaces (38) with nozzles (40) are shielded from the first inlet chamber (30) and connected to a second inlet chamber (50) which is adapted to be fed separately from the first inlet chamber with process gas. This provides novel possibilities of influencing a fluidized bed, especially of rendering it more uniform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.