Fluidized bed apparatus
US4587744A · kind A · utility
Inventor
Key dates
| Filing date | May 18, 1984 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | May 18, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J8/386
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A plunger pipe (40) connectable to a gas source projects axially from above into a container (10) which is rotationally symmetrical with respect to a vertical container axis (A). A dish (16) is arranged below the plunger pipe (40) to deflect the gas supplied through the plunger pipe (40) in upward direction so as to move the material (C) contained in the container (10). In an upper area of the container (10) a deflector shield (56) is arranged around the plunger pipe to deflect the material (C) entrained upwardly by the gas in outward direction. A gas outlet opening (26) is disposed above the deflector shield (56) which is permeable to gas at least in some areas. The apparatus is suitable for mixing, drying, granulating, pelleting, polishing, and/or coating pulverous or granular material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.