System and method for cleaning oily solid material
Abstract
Abstract A SLURRY OF SOLID MATERIAL, OIL AND WATER IS PUMPED FROM THE BOTTOM OF A FLOATATION COMPARTMENT INTO A CYCLONE IN WHICH THE SOLID MATERIAL IS WASHED AND SEPARATED FROM THE OIL AND WATER. THE LIGHTER, AERATED LIQUID PHASE SEPARATED FROM THE SLURRY IN THE CYCLONE IS RECIRCULATED TO THE FLOTATION COMPARTMENT WHERE THE AIR BUBBLES IN THE LIQUID AID IN SEPARATING THE OIL FROM THE WATER. THE SEPARATED, HEAVIER SOLID MATERIAL IS DISCHARGED FROM THE CYCLONE INTO A RINSE COMPARTMENT. AN OVERFLOW OPENING BETWEEN THE RINSE AND FLOATATION COMPARTMENTS PERMITS LIQUID IN THE RINSE COMPARTMENT TO OVERFLOW INTO THE FLOATATION COMPARTMENT. A CLEANSING AGENT IS PREFERABLY ADDED TO THE SLURRY FED TO THE CYCLONE. ADDITIONAL WASHING AND SEPARATING STAGES MAY BE ADDED AS DESIRED.
Inventors
- 👤 J Garcia
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |