Controlled intensity high speed double disc refiner
US5167373A · kind A · utility
39Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1991 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | Jan 8, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21D1/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A double disc refiner apparatus (10) and associated method, in which two counter-rotating refiner discs (26,28) which define a refining zone (58) therebetween, are counter-rotated at different steady-state speeds, such as 1800 rpm and 1200 rpm. For energy-efficiency, the feed end disc (26) is rotated at a faster speed than the control end disc (28), but in some instances, desired refiner output quality can be achieved by rotating the control end disc faster than the feed end disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.