Patent US2520031A successfully refreshed from Google Patents.
US3847571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclone separator with foam supply
Assignee: Individual
•
Filing: 1973-09-11
•
Granted: 1974-11-12
•
Expires: 1993-09-11
Abstract
Abstract The cyclone separator of this invention has nozzles that direct foam into the gas streams flowing into the separator. The foam traps the particulate matter in the gas stream and coats the walls of the separator with a slurry which travels down the wall of the separator chamber to an opening at the bottom of the chamber. The slurry accumulates across this opening and there is a chamber bottom, preferably hinged, that automatically opens to dump the slurry each time that the accumulation reaches sufficient weight to open the hinged bottom.
Inventors
- 👤 H Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:04
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/14; B04C5/18; Y; Y10; Y10S; Y10S261/00; Y10S261/26
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
155 words
A CYCLONE SEPARATOR INCLUDING IN COMBINATION A CHAMBER A GAS OUTLET AT THE UPPER END THEREOF AND IN GENERALLY AXIAL ALIGMENT WITH THE LONGITUDINAL AXIS OF THE CHAMBER, BUT OF SUBSTANTIALLY LESS CROSS SECTION THAN THAT OF THE UPPER END OF THE CHAMBER AN INLET PASSAGE THROUGH WHICH PARTICULATE-LADEN GAS ENTERS THE CHAMBER, SAID INLET PASSAGE BEING LOCATED AT THE UPPER PART OF THE CHAMBER AND DIRECTED GENERALLY TANGENTIAL OF THE CYCLONIC, SEPARATION CHAMBER WITH A DOWNWARDLY COMPONENT, A NOZZLE MEANS IN POSITION TO DIRECT A STREAM OF FOAM INTO THE GAS STREAM OF SAID INLET PASSAGE IN A POSITION FOR THE FOAM TO TRAVEL WITH THE GAS FLOW DOWN THE SIDES OF THE SEPARATION CHAMBER TO COAT SAID SIDES AND RETAIN PARTICULATE MATTER COLLECTED FROM THE GAS STREAM, AND AN OUTLET AT WHICH A SLURRY OF PARTICULATE MATTER AND FOAM COLLECTS AT THE BOTTOM OF THE CHAMBER AND FROM WHICH THE SLURRY IS DISCHARGED.
Claim 2
Dependent Claim
155 words
A CYCLONE SEPARATOR INCLUDING IN COMBINATION A CHAMBER A GAS OUTLET AT THE UPPER END THEREOF AND IN GENERALLY AXIAL ALIGMENT WITH THE LONGITUDINAL AXIS OF THE CHAMBER, BUT OF SUBSTANTIALLY LESS CROSS SECTION THAN THAT OF THE UPPER END OF THE CHAMBER AN INLET PASSAGE THROUGH WHICH PARTICULATE-LADEN GAS ENTERS THE CHAMBER, SAID INLET PASSAGE BEING LOCATED AT THE UPPER PART OF THE CHAMBER AND DIRECTED GENERALLY TANGENTIAL OF THE CYCLONIC, SEPARATION CHAMBER WITH A DOWNWARDLY COMPONENT, A NOZZLE MEANS IN POSITION TO DIRECT A STREAM OF FOAM INTO THE GAS STREAM OF SAID INLET PASSAGE IN A POSITION FOR THE FOAM TO TRAVEL WITH THE GAS FLOW DOWN THE SIDES OF THE SEPARATION CHAMBER TO COAT SAID SIDES AND RETAIN PARTICULATE MATTER COLLECTED FROM THE GAS STREAM, AND AN OUTLET AT WHICH A SLURRY OF PARTICULATE MATTER AND FOAM COLLECTS AT THE BOTTOM OF THE CHAMBER AND FROM WHICH THE SLURRY IS DISCHARGED.
Claim 3
Dependent Claim
50 words
The centrifugal separator described in claim 1 characterized by shut-off means to control the supply of foam to the separator, an actuator that opens and closes the shut-off means to supply and shut off the foam, and a cyclic timer adjustable to periodically operate the actuator for the shut-off means.
Claim 4
Dependent Claim
32 words
The cyclone separator described in claim 1 characterized by the nozzle means being in position to discharge foam into the gas stream before the gas stream is discharged into the separation chamber.
Claim 5
Dependent Claim
37 words
The cyclone separator described in claim 1 characterized by a bottom closing the lower end of the chamber and one which the slurry accumulates, and means for moving the bottom into open position to dump the slurry.
Claim 6
Dependent Claim
51 words
The cyclone separator described in claim 4 characterized by hinge means by which the bottom is supported and on which the bottom swings into open pOsition when the weight of the accumulated slurry reaches a predetermined value, and means for restoring the bottom to its closed position after each dumping operation.
Claim 7
Dependent Claim
34 words
The cyclone separator described in claim 1 characterized by foam making equipment that mixes foaming agent and water upstream of and connected to the nozzle means including means for proportioning the agent and water.
Claim 8
Dependent Claim
21 words
The cyclone separator described in claim 6 characterized by the proportioning means limiting the water supply to produce a strong foam.
Claim 9
Dependent Claim
35 words
The cyclone separator described in claim 7 characterized by the proportioning means being adjustable, and correlated to supply foam having from one to three parts of foaming agent to 100 parts of water, by volume.
Claim 10
Dependent Claim
32 words
The cyclone separator described in claim 7 characterized by a foaming agent supply means for high expansion foaming agent, and the proportioning means producing an expansion ratio of about 30 to 60.
Claim 11
Independent Claim
84 words
The method of separating particulate matter from a gas stream which comprises directing a stream of gas, that contains particulate matter, into a separation chamber of a cyclone separator, discharging foam into the chamber to mix with the gas stream and moves along the sides of the chamber, trapping particulate matter from the gas stream in the foam to form a slurry, draining the slurry down the side wall of the separation chamber, and discharging the slurry from the lower part of the chamber.
Claim 12
Independent Claim
84 words
The method of separating particulate matter from a gas stream which comprises directing a stream of gas, that contains particulate matter, into a separation chamber of a cyclone separator, discharging foam into the chamber to mix with the gas stream and moves along the sides of the chamber, trapping particulate matter from the gas stream in the foam to form a slurry, draining the slurry down the side wall of the separation chamber, and discharging the slurry from the lower part of the chamber.
Claim 13
Dependent Claim
28 words
The method described in claim 10 characterized by accumulating the slurry across a bottom of the chamber, and dumping the slurry when the accumulation exceeds a predetermined limit.
Claim 14
Dependent Claim
73 words
The method described in claim 10 characterized by forming the foam from a synthetic protein material liquid foaming agent mixed with water in one to three parts foaming agent to about one hundred parts of water, by volume, and with an expansion factor of 30 to 60 to obtain a foam strong enough to trap and hold the particulate matter in the slurry while it drains out of the chamber of the separator.
References Cited (Backward Citations)
US1355617A
Cited
US1792590A
Cited
US968456A
Cited
US1130849A
Cited
US3243043A
Cited
US3675396A
Cited
US3667687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |