Device for extraction of liquid from suspensions in movement
US4396509A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 31, 1980 |
| Grant date | Aug 2, 1983 |
| Priority date | — |
| Expiry date | Dec 31, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D35/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A screen assembly is provided for the dewatering of flowing suspensions. A screen body having a perforated wall has a first slide bearing mounted at a first end thereof, and a second slide bearing mounted to a second end thereof. The screen body is mounted in a generally cylindrical container through which suspension to be dewatered flows in a first direction, and the screen slide bearings engage first and second bearing surfaces mounted interiorly of the container. The bearing surfaces have different effective cross-sectional areas. The screen between the first and second ends thereof and the bearing surfaces define a screen cavity volume, and a rod attached to a linear actuator moves the screen in the first direction, and in a second direction opposite the first direction, so that the cavity volume changes during movement of the screen. The screen and bearings may have any desired configuration or cross-sectional area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.