US3586294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for creating a suspension of fine particles in a liquid
Assignee: JAMES J STRONG
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Filing: 1969-02-20
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Granted: 1971-06-22
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Expires: 1989-02-20
Abstract
Abstract A novel arrangement of fluid nozzles or spargers is positioned in a critical manner above a bed of sludge in the bottom of a settling tank or phase separator, such as that employed in a powdered ion exchange process of water treatment. Operation of the spargers causes a complete 100 percent suspension of the fine particles comprising the sludge thereby making complete removal of the particles by pumping out the suspension possible without the use of any mechanical agitators. Especially adapted in connection with nuclear processes where radioactivity of the sludge creates a problem, not only of suspension but also the necessity for complete 100 percent removal.
Inventors
- 👤 James J Strong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:50
CPC Classifications
G; G21; G21F; G21F9/00; G21F9/04; G21F9/06; G21F9/12; B; B01; B01D; B01D21/00; B01D21/0018; B01D21/0021; B01D21/02; B01D21/24; B01D21/245; B01D21/2472; B01F; B01F25/00; B01F25/20; B01F25/21; B01J; B01J47/00; B01J47/10; B01J8/00; B01J8/18; B01J8/20; B08; B08B; B08B9/00; B08B9/08; B08B9/093; B08B9/0933; C; C02; C02F; C02F1/00; C02F1/52; C02F1/5281; B01F23/00; B01F23/50
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
168 words
A method of suspending in a liquid a mass of fine particles collected at the bottom of a vessel comprising the steps: introducing a liquid into said vessel to a level substantially above said mass of particles thereby creating an iNterface between said mass of particles and said liquid; directing a first set of fluid jets into said vessel above said interface; said first jets being so directed as to be tangent to a first imaginary circle located inside said vessel and concentric therewith; directing a second set of fluid jets into said vessel above said interface; said second jets being so directed as to be tangent to a second imaginary circle located inside said vessel and concentric therewith and having a diameter substantially less than that of said first imaginary circle; said second jets being further positioned in a direction opposite to that of said first jets; said first jets and said second jets being further directed towards said interface at a predetermined angle to the horizontal.
Claim 2
Dependent Claim
21 words
The method of claim 2 including the steps of varying the intensity of said first jets and said second jets independently.
Claim 3
Independent Claim
242 words
An apparatus for creating a liquid suspension of a mass of fine particles which have settled to the bottom of a vessel comprising: means for introducing a liquid into said vessel and creating an interface between said mass of particles and said liquid; a manifold comprising a pipe header and a plurality of laterals connected to said header positioned horizontally above said interface; a first set of nozzles connecting to said laterals and forming a generally circular configuration within said vessel; said first nozzles being directed so as to be tangent to a first imaginary circle located inside said vessel and concentric therewith; said first nozzles being further directed in the same rotative direction with respect to the central axis of said vessel; a second set of nozzles connecting to said laterals and forming a generally circular configuration within said vessel; said second nozzles being directed so as to be tangent to a second imaginary circle inside said vessel and concentric therewith and having a diameter substantially less than that of said first imaginary circle; said second nozzles being further directed in the same rotative direction with respect to the central axis of said vessel but in a rotative direction opposite to that of said first nozzles; said first nozzles and said second nozzles being further directed towards said interface at a predetermined angle to the horizontal; means for introducing a fluid under pressure to said manifold and thence through said nozzles.
Claim 4
Dependent Claim
30 words
The apparatus of claim 4 in which each of said first nozzles is so directed as to form an angle with a radial line to said nozzle of approximately 60*.
Claim 5
Dependent Claim
30 words
The apparatus of claim 4 in which each of said second nozzles is so directed as to form an angle with a radial line to said nozzle of approximately 15*.
Claim 6
Dependent Claim
24 words
The apparatus of claim 4 in which said predetermined angle to the horizontal of said first nozzles and said second nozzles is approximately 15*.
Claim 7
Dependent Claim
18 words
The apparatus of claim 4 including means for independently varying the pressure of said fluid to said nozzles.
Claim 8
Dependent Claim
31 words
The apparatus of claim 4 in which said nozzles are of fluid eductor type having an inlet at one end, suction parts communicating therewith and a discharge at the opposite end.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |