Apparatus for the purification of paper pulp
US4200537A · kind A · utility
26Cited by
3References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 6, 1978 |
| Grant date | Apr 29, 1980 |
| Priority date | — |
| Expiry date | Nov 6, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D29/908
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for purifying paper pulp in the liquid state by screening. The apparatus comprising a cylindrical fixed screen disposed coaxially with a rotor within a housing. The rotor has longitudinal blades which, in section transverse to the rotor axis, have the general shape of an angle one side of the angle being substantially radial to the rotor and a second side inclined thereto. This apparatus is capable of both centripetal and centrifugal operation, and at concentrations of from 3 to 4%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.