US3699748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wet scrubber dust collector
Assignee: AMERICAN DAVIDSON Inc A CORP OF MICH
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Filing: 1969-10-24
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Granted: 1972-10-24
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Expires: 1989-10-24
Abstract
Abstract A wet dust collector or scrubber having an inertial separator section for removing a substantial percentage of the dust particles from the treated gas stream, a porous packing subjected to flushing liquid for producing a concentrated fog and assimilating the remaining dust particles into said fog, and a second separator section for removing the wet dust particles from the gas stream. The first inertial section preferably comprises spaced baffles which are subjected to liquid spray for collection of dust particles and for prevention of clog-up of the baffle spaces.
Inventors
- 👤 William E Barkovitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:19
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
251 words
A dust collector comprising a gas flow casing having an inlet for receiving dusty gas and an outlet for exhausting clean gas; a porous packing arranged between the inlet and outlet to intercept the flowing gas; means applying flush liquid to the packing, whereby said liquid is intermixed with the flowing stream and subjected to shearing action by the packing surface, thus producing a fog which mixes with the dust particles then in the stream; a final separator arranged between the packing and clean gas outlet to remove fog-coated particles from the stream after said stream has passed through the packing; and a preliminary separator arranged between the gas inlet and porous packing; said preliminary separator comprising overlapped closely spaced baffles having frontal faces thereof exposed to the oncoming gas stream and having rear faces thereof exposed to the entering face of the porous packing; said baffles being elevated above a dust receiver that communicates with the baffle frontal faces, whereby dust particles enjoy a gravitational path from said frontal faces into the receiver; said baffles being angled to the oncoming stream and being arranged in parallel flow relation tone another, whereby the oncoming stream is sepaRated into multiple component gas streams that are individually forced to turn in tight radii to pass from the baffles frontal faces to the baffle rear faces; the entering face of the packing communicating with each of the baffles rear faces so that the partially cleaned component streams recombine and then pass through the packing.
Claim 2
Dependent Claim
251 words
A dust collector comprising a gas flow casing having an inlet for receiving dusty gas and an outlet for exhausting clean gas; a porous packing arranged between the inlet and outlet to intercept the flowing gas; means applying flush liquid to the packing, whereby said liquid is intermixed with the flowing stream and subjected to shearing action by the packing surface, thus producing a fog which mixes with the dust particles then in the stream; a final separator arranged between the packing and clean gas outlet to remove fog-coated particles from the stream after said stream has passed through the packing; and a preliminary separator arranged between the gas inlet and porous packing; said preliminary separator comprising overlapped closely spaced baffles having frontal faces thereof exposed to the oncoming gas stream and having rear faces thereof exposed to the entering face of the porous packing; said baffles being elevated above a dust receiver that communicates with the baffle frontal faces, whereby dust particles enjoy a gravitational path from said frontal faces into the receiver; said baffles being angled to the oncoming stream and being arranged in parallel flow relation tone another, whereby the oncoming stream is sepaRated into multiple component gas streams that are individually forced to turn in tight radii to pass from the baffles frontal faces to the baffle rear faces; the entering face of the packing communicating with each of the baffles rear faces so that the partially cleaned component streams recombine and then pass through the packing.
Claim 3
Dependent Claim
53 words
The dust collector of claim wherein the gas flow casing is downflow casing having a top inlet and a bottom outlet; the aforementioned baffles being located within the upper portion of the casing; and the packing being located below the baffles so that gas flows downwardly from the baffle spaces through the packing.
Claim 4
Dependent Claim
39 words
The dust collector of claim 1 and further comprising means for spraying flush liquid against the frontal faces of the baffles to wet the oncoming dust particles and promote gravitational movement of the particles out of the gas stream.
Claim 5
Dependent Claim
91 words
The dust collector of claim 1 wherein the gas flow casing is a downflow casing having a top inlet and a bottom outlet; the aforementioned baffles taking the form of vertically spaced funnels arranged in axial alignment with one another within the upper portion of the casing; the upper ends of the funnels being larger than the lower ends; the packing being located below the space occupied by the funnels; the casing space surrounding the funnels being in open communication with the funnel spaces and the upper face of the packing.
Claim 6
Dependent Claim
22 words
The dust collector of claim 4 and further comprising a dust drainage duct extending downwardly from the lowermost funnel through the packing.
Claim 7
Dependent Claim
29 words
The dust collector of claim 4 wherein the aforementioned means for applying flush liquid to the packing comprises downspray nozzle means arranged in the casing space surrounding the funnels.
Claim 8
Dependent Claim
70 words
The dust collector of claim 1 wherein the gas flow casing is a downflow casing having a top inlet and a bottom outlet; the aforementioned baffles being located within the upper portion of the casing; the packing being located below the baffles so that gas flows through the spaces between the baffles into a casing space above the packing, and thence downwardly through the packing toward the aforementioned final separator.
Claim 9
Dependent Claim
80 words
The dust collector of claim 1 wherein the packing consists of a multiplicity of cellular egg crate sections laid on one another in layers; successive layers being staggered in direction normal to the cell axes, whereby the frontal edges of the cell walls produce shearing action on the flush liquid; said packing being arranged for downflow movement of the gas therethrough; the means for applying fluid liquid comprising liquid nozzles located above the packing to wet the packing upper face.
References Cited (Backward Citations)
US1176747A
Cited
US1460490A
Cited
US1823269A
Cited
US1986736A
Cited
US2054315A
Cited
US2702699A
Cited
US3502596A
Cited
US3505788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |