Method and apparatus for pumping fibre suspensions
US4854819A · kind A · utility
8Cited by
9References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1987 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Dec 10, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05B2210/132
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and a device for pumping fibre suspensions of high consistency are described. Shear forces disrupting fibre flocs are induced in the front of the impeller in a centrifugal pump which fluidize the fibre suspension thus converting it into an easily pumpable state. This is effected by an inlet part of the pump having recesses and/or lobes in its inner surface in front of the impeller which cooperate with a rotor having an outer surface in which there are lobes. The rotor is disposed into the outlet part of the vessel during operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.