Apparatus for separating spherical from non-spherical particles
US4839033A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 1988 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | May 25, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S209/94
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for separating particles in accordance with the sphericity of the particles is disclosed. The apparatus includes a housing which is supplied with air having a desired humidity, and which accommodates therein a cylindrical rotor with a horizontal shaft. The particles are charged into the housing from a hopper above the rotor, and tend to adhere onto the peripheral surface of the rotor with adhesive force which is dependent on the sphericity of each particle. The rotor is placed into a slow rotation and subjected to vibration whereby non-spherical particles and spherical particles are collected in respective receptacles arranged on both sides of the rotor shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.