Spray drying device
US5615493A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1996 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Mar 29, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B3/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a spray drying device with a drying chamber and at the bottom thereof a fluidized bed, which is maintained on a perforated plated, the fluidized layer is divided by means of separation means into two zones, of which only one is supplied with particles from the spray drying chamber, whereas the second zone is substantially supplied with particles only from the first zone and is designed for treatment of the particles while they pass through the zone in a flow without substantial back mixing. The device makes it possible to manufacture a product which without after-treatment, is substantially dustless and has the desired particle size distribution, degree of dampness and surface treatment. Furthermore, an improved exploitation of energy is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.