Apparatus for treatment of contaminated liquids
US7122118B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 2001 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Nov 9, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D21/26
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A treatment vessel for separating contaminants from a base liquid is provided. The vessel comprises a first cylindrical portion, a frusto-conical portion, a second cylindrical portion and a conical portion, the conical portion having a bottom outlet arranged to discharge heavy contaminants from the vessel. Over time, the heavy contaminants settle on the sides of the conical and frusto-conical portions. In order to remove the settled contaminants, the vessel is provided with at least one clarified liquid inlet disposed at or proximate to the frusto-conical portion. The clarified liquid is sourced from either the treatment vessel itself, or another treatment vessel in the same system. The clarified liquid is reintroduced into the vessel in a manner so as to cause a downward circular flow to scour out the frusto-conical portion and the conical portion so as to assist in removal of heavy contaminants that settle on the sides thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.