Segregation testing apparatus for powders and granular materials
US7347111B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2005 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Apr 26, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N1/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus enables testing of sifting segregation of a particulate solid mixture in a storage bin or hopper. The apparatus makes use of a convergently and divergently angled hopper for collecting the mixture. The apparatus further makes use of a minimally-shearing feeder mechanism supplying a desired flow of mixture, with minimal to no sifting segregation, to the angled hopper. A collection mechanism removes samples of the mixture from the angled hopper for analysis with minimal disruption of the particles of the mixture relative to each other. Thus, samples resulting from the testing apparatus, and corresponding method, are highly representative of mixture conditions within a larger storage hopper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.