Powder classification system and method
US9889450B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2014 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Dec 4, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03B9/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A powder classification apparatus (10; 110; 210) includes a first chamber (12; 112; 212) that includes a fluidized bed and has an inlet (16; 116; 216A) and an outlet (18; 118; 218), the inlet (16; 116; 216A) configured to receive a gas (G) and distribute the gas (G) in a uniform flow through the first chamber (12; 112; 212), the first chamber (12; 112; 212) configured to receive a powder (P) and the gas (G) and create a fluidization zone, the outlet (18; 118; 218) configured to allow at least a portion of the powder (P) to exit the first chamber (12; 112; 212); and a second chamber (14; 114; 214) having a powder inlet (24; 124; 224) configured to accept at least a portion of the powder (P) from the outlet (18; 118; 218) in the first chamber (12; 112; 212) caused by at least a portion of the powder (P) being ejected from the first chamber (12; 112; 212) by the gas (G).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.