Centrifugal separator with presedimentation means
US4193537A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1978 |
| Grant date | Mar 18, 1980 |
| Priority date | — |
| Expiry date | Oct 23, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B1/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The centrifugal rotor contains a distributor forming a conical wall having openings through which the central inlet chamber is connected to the separating space, the inlet chamber also being connected through a presedimentation space to a peripheral sludge space by way of an annular slot located radially outward from said openings. An annular flexible valve for the slot has one side directed toward the presedimentation space and an opposite side directed toward the peripheral sludge space, the valve being operable to close said slot when subjected to substantially equal liquid pressures on said sides thereof and to open the slot upon creation of a substantial pressure difference on said sides in response to opening of outlets from the peripheral sludge space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.