Screening device
US6241102A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2000 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Jun 16, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B1/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Apparatus is disclosed for screening fiber suspensions including a housing, an annular screen disposed within the housing, a rotor disposed within the annular screen for rotating relative to the annular screen, pulsation wings disposed between the outer surface of the rotor and the annular screen for relative rotation with the rotor, an inlet for the fiber suspension to feed the fiber suspension to one end of the screening zone, an accept outlet for a portion of the fiber suspension which passes through the annular screen, a reject outlet for a portion of the fiber suspension which does not pass through the annular screen, and a dilution liquid nozzle for supplying a dilution liquid to the screening zone between the rotor and the annular screen, the dilution liquid nozzle disposed proximate to the reject outlet and directing the dilution liquid into the screening zone along the outer surface of the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.