Method of and apparatus for separating heavy impurities from fiber suspensions in connection with pumping
US5323914A · kind A · utility
1Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1992 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Feb 6, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05B2210/132
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and an apparatus for separating heavy impurities from a fiber suspension include a centrifugal pump capable of separating heavy impurities towards the periphery of the interior chamber of the pump. The fiber suspension is caused to rotate in the interior chamber so as to urge the suspension downstream as well as separate the impurities towards the periphery of the chamber where they can be collected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.