Solids handling in an oil/grease separator
US5360555A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1993 |
| Grant date | Nov 1, 1994 |
| Priority date | — |
| Expiry date | Sep 24, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D21/0006
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An oil/grease separation apparatus includes a chamber for receiving a liquid flow containing water, oil/grease and gross solids. An inlet section is separated from a downstream section by a weir, so that a higher static water level is maintained in the inlet section than the downstream section, to facilitate one-way passage of oil/grease from the inlet section to the downstream section. A grinder/pump has an input port in a lower portion of the inlet section. The inlet section has an inlet port, a strainer separating the inlet port and the top of the weir to inhibit passage by solids to the downstream section, and a bottom which slopes downwardly toward the input port of the grinder/pump. An oil/grease separator located in the downstream section removes oil/grease from water held in the downstream section. The gross solids entering the chamber settle in the inlet section for periodic removal with some water by the grinder/pump, oil/grease and water entering the chamber pass to the downstream section where the oil/grease is removed from the water, and the residual water exits the chamber through the outlet section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.