Digester screen for a continuous cellulose pulp digester
US8088253B2 · kind B2 · utility
0Cited by
3References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 27, 2008 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Jan 21, 2029 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C7/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The digester screen is for a continuous digester in which cooked cellulose pulp is produced. The digester screen has a number of screen bars arranged vertically in the continuous digester that have withdrawal slots (S) between the fixed screen bars through which withdrawal slots cooking fluid can be withdrawn from the column of pulp (P) of the digester. By having every second screen bar fixedly arranged and recessed a distance (D) relative to the neighboring screen bar an increased withdrawal capacity for the screen is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.