Electrostatic precipitator with means for the enhanced charging and collection of fine particles
US4778493A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1986 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Apr 28, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C3/38
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrical precipitator which uses a combination of field charging, diffusion charging, and electron charging for the enhancement of fine particle charging and collection. A precipitator is described for the collection of fine particles of less than 1.0 micron in diameter from an effluent by enhancing the charge thereon by electrons of high kinetic energy. Another feature of the invention describes a precharging stage which can be added to the electron charging stage, or other conventional precipitator stage, that operates the basis of ion bombardment or diffusion of thermally active ions. The precharging stage charges the fine particles and they can later be increased in charge and precipitated by the electron charging stage. Another feature of the invention describes disposing a conventional stage for coarse particulates over 1.0 micron in diameter between the diffusion charging stage and the electron charging stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.