Apparatus for screening a suspension of fibrous cellulose pulp
US4913806A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1989 |
| Grant date | Apr 3, 1990 |
| Priority date | — |
| Expiry date | Jun 5, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21D5/026
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for screening a suspension of fibrous cellulose pulp is described which comprises a housing and a rotor shaft, the housing having an inject section, first and second screening sections, each of which comprising rotor members mounted on the rotor shaft and a cylindrical screening plate cooperating therewith and defining an outer accept chamber and an inner screening chamber, and a reject section for the removal of fiber suspension remaining at screening, the inject section communicating with the screening chamber of the first screening section. According to the invention the inject section is disposed between the first screening section and the second screening section, and the screening chamber of the first screening section communicates with the adjacent reject section. The housing includes an inlet section disposed at the end of the second screening section facing away from the inject section, so that an internal space of the inlet section communicates with the screening chamber of the second screening section, whereas the accept chamber of the first screening section communicates with the internal space of the inlet section via a communication extending outside the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.