Machine for micro-filtering solid particles suspended in a liquid stream
US6500331B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 13, 2001 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Feb 13, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D33/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a machine for micro-filtering solid particles suspended in a liquid stream comprising: a couple of coaxial filtering discs each rotating round its own axis arranged horizontal and normal to direction of the flow to be treated and at least a partially cylindrical wall defining together with the rims of said couple of discs a hydraulic sealing coupling so as to enclose the liquid treating space comprising at least the rotation axis. Each disc of said couples of discs is provided with one or more washing ramps arranged outside said treating chambers and provided with nozzles throwing water against said discs at the portions emerging from the treating chamber. The washing water is collected by at least one liquid conveyance channel feeding the liquid back to the purification plant arranged upstream said machines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.