Rotating pulp bleaching reactor having inner and outer shells and lifting means on the interior surface of the inner shell
US5087326A · kind A · utility
9Cited by
1References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 20, 1991 |
| Grant date | Feb 11, 1992 |
| Priority date | — |
| Expiry date | Feb 20, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F29/4033
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for bleaching pulp particles comprising an inner tubular shaped shell member with lifter blades mounted on its internal wall surface. The shell member is rotatably mounted within an outer shell member with seals between the shell members providing an isolated space. This space is pressurized with a gas to prevent pulp particles and gases from escaping from the inner shell member by way of the seals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.