Vortex pneumatic classifier
US5533629A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1994 |
| Grant date | Jul 9, 1996 |
| Priority date | — |
| Expiry date | Sep 3, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B7/083
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Precise classifying of granular or powdered raw material at the desired classifying point by means of a vortex pneumatic classifier comprising: a rotor, a plurality of vortex flow adjusting vanes provided on the said rotor, a classifying chamber defined around the said vortex flow adjusting vanes, and guide vanes radially opposing the said vortex flow adjusting vanes across the said classifying chamber, wherein the mounting pitch P of the said vortex flow adjusting vanes is determined in relation to the classifying particle diameter Dp(th) so as to meet the condition of the following relation expression EQU P.ltoreq.1.04.times.Dp(th).sup.0.365.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.