Process and a spray drying apparatus for producing an agglomerated powder
US5632100A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 1996 |
| Grant date | May 27, 1997 |
| Priority date | — |
| Expiry date | May 15, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23C2210/05
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a spray drying and agglomerating process carried out in a spray drying chamber (1) having a conical lower section (3), in which chamber the liquid to be spray dried is atomized into a downward central stream of drying gas and the spent drying gas is withdrawn from non-central locations (5, 11) in the upper part of the drying chamber together with entrained fine particles, m the fine particles are recycled to the drying chamber by pneumatic injection thereof from a location in the lower part of the drying chamber and in one or more directions forming an angle of 0.degree.-90.degree. to the upward center axis of the chamber. An apparatus suitable for carrying out the process has the capability of performing the separation and recycling of the fine particles as specified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.