Air classifier to separate solids while eliminating emissions
US7051880B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 2005 |
| Grant date | May 30, 2006 |
| Priority date | — |
| Expiry date | May 16, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B11/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An air classifier to separate solids by air classification while eliminating emissions. The air classifier includes an in-feed delivery mechanism, such as a continuous conveyer belt in order to deliver solids to an input chamber. A hanging curtain is movable in response to solids entering the input chamber. A balanced gate moves in response to solids exiting from the input chamber. An air fan delivers forced air to an air classifier chamber which is in communication with the input chamber. A heavy fraction discharge is in communication with the air classifier chamber to receive a portion of the solids heavier than the force of air delivered to the air classifier chamber. A light fraction discharge in communication with the air classifier chamber removes light solids. A return air duct in communication with the light fraction discharge returns air from the light fraction discharge to the fan. A bleed-off duct delivers a portion of forced air from the fan back into the input chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.