Arrangement for liquid treatment of pulp
US4900400A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1988 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Sep 14, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D33/70
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Apparatus for treating a pulp suspension with a treatment liquid is disclosed, comprising a continuous pervious belt for receiving the pulp suspension and moving it through a treatment zone in a predetermined direction. A treatment liquid supply is located above the continuous belt for supplying the treatment liquid onto the pulp suspension as it travels through the treatment zone, and a collector is located below the continuous belt for receiving liquid passing through the pulp suspension. The treatment liquid supply includes a treatment liquid feed pipe for supplying a flow of the treatment liquid, a distributor for dividing the flow of treatment liquid from the treatment liquid supply into first and second flow components, the first flow component being in the direction of the moving belt and the second flow component being counter to that direction, a deflector for deflecting the second flow component into that direction, and first and second plates for applying first and second flow components onto the pulp suspension, whereby the amount of the treatment liquid supplied to the pulp suspension is controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.