Quasi-continuous treatment of particulate materials with cleansing nozzle system
US6644847B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 2001 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | May 21, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The multicell apparatus according to the invention is suitable for batchwise and in particular quasi-continuous operation, i.e. for the continuous processing of batches in rapid succession, for example for the preparation of readily free-flowing granules which are suitable for filling in capsules or sachets. The apparatus is in particular a multifunctional system which combines the process steps of batch introduction, metering, mixing/granulation, drying, product cooling and product collection with one another in a very compact design. The individual batches are conveyed inside the apparatus through a product path which is hermetically sealed from the outside and in which an internal pressure lower than the ambient pressure may additionally prevail at least in sections. This, together with the cleaning nozzles connected to a central cleaning system, permits contamination-free operation both with aqueous and with organic starting materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.