US3713277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fog impingement scrubbing system
Assignee: AJ Sackett and Sons Co
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Filing: 1971-01-15
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Granted: 1973-01-30
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Expires: 1991-01-15
Abstract
Abstract A fog impingement scrubber system is provided for removing from an air stream particulate matter, such as product dust and combustion dust products, as well as fumes, and water soluble or water reactant vapors generated during a manufacturing process. The polluted air stream from the manufacturing process is fed to a fog impingement scrubber system. The polluted air stream is first sprayed by a series of high pressure water sprays to create a fog or mist to dampen or wet particulate matter in the air stream, particularly any fine or microscopic sized particles. A second set of water nozzles or sprays is then utilized further downstream of the fogging area to moisten the larger particles of particulate matter in the air stream. The sprayed polluted air stream is then impinged upon a whirlpool provided in the scrubbing system, where the moistened particles are removed from the air stream, and where the water soluble or water reactant vapors are treated. Any moisture in the air is then removed by a demisting system, and the clean air then discharged back to the atmosphere.
Inventors
- 👤 W Sackett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:23
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D47/00; B01D47/06; Y; Y02; Y02A; Y02A50/00; Y02A50/20; Y02A50/2351
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
322 words
A fog impingement scrubbing system, comprising, structure defining a cylindrical shaped housing having a conical shaped bottom and a conical shaped top connected to an exhaust stack, a conduit connected to said exhaust stack for introducing into said housing an air stream from said exhaust stack to be treated for pollutants including particulate matter and water soluble and/or water reactant vapors contained therein, said conduit having a downstream end arranged concentrically of said housing and extending along the longitudinal axis of said housing, said conduit terminating above said conical shaped bottom, means for diverting said air stream from said exhaust stack to said conduit, means including a series of high pressure spray nozzles located upstream in said conduit and outside said housing for creating a fog area in said conduit through which said air stream passes for first water moistening of fine particulate matter contained therein; means including a series of low pressure nozzles positioned in said conduit downstream end downstream of said series of high pressure nozzles for water moistening of large particulate matter contained in said air stream, means including a series of spaced water jets tangentially arranged around the interior periphery of said conical shapEd bottom of said housing for creating a whirlpool in said conical bottom of said housing for impingement of said air stream from said conduit thereon to remove the particulate matter from said air stream as well as treat any water soluble or water reactant vapors in said air stream from said conduit, adjustable extension conduit means positioned on the terminating end of said conduit for adjusting the distance from said whirlpool, means for removing said slurry generated in said whirlpool by the treatment of said air stream having said pollutants contained therein, and demisting means consisting of several parallel layers of fine mesh steel fabric positioned at the top of said housing for demisting the treated air stream from said conduit and said whirlpool.
Claim 2
Dependent Claim
322 words
A fog impingement scrubbing system, comprising, structure defining a cylindrical shaped housing having a conical shaped bottom and a conical shaped top connected to an exhaust stack, a conduit connected to said exhaust stack for introducing into said housing an air stream from said exhaust stack to be treated for pollutants including particulate matter and water soluble and/or water reactant vapors contained therein, said conduit having a downstream end arranged concentrically of said housing and extending along the longitudinal axis of said housing, said conduit terminating above said conical shaped bottom, means for diverting said air stream from said exhaust stack to said conduit, means including a series of high pressure spray nozzles located upstream in said conduit and outside said housing for creating a fog area in said conduit through which said air stream passes for first water moistening of fine particulate matter contained therein; means including a series of low pressure nozzles positioned in said conduit downstream end downstream of said series of high pressure nozzles for water moistening of large particulate matter contained in said air stream, means including a series of spaced water jets tangentially arranged around the interior periphery of said conical shapEd bottom of said housing for creating a whirlpool in said conical bottom of said housing for impingement of said air stream from said conduit thereon to remove the particulate matter from said air stream as well as treat any water soluble or water reactant vapors in said air stream from said conduit, adjustable extension conduit means positioned on the terminating end of said conduit for adjusting the distance from said whirlpool, means for removing said slurry generated in said whirlpool by the treatment of said air stream having said pollutants contained therein, and demisting means consisting of several parallel layers of fine mesh steel fabric positioned at the top of said housing for demisting the treated air stream from said conduit and said whirlpool.
Claim 3
Dependent Claim
322 words
A fog impingement scrubbing system, comprising, structure defining a cylindrical shaped housing having a conical shaped bottom and a conical shaped top connected to an exhaust stack, a conduit connected to said exhaust stack for introducing into said housing an air stream from said exhaust stack to be treated for pollutants including particulate matter and water soluble and/or water reactant vapors contained therein, said conduit having a downstream end arranged concentrically of said housing and extending along the longitudinal axis of said housing, said conduit terminating above said conical shaped bottom, means for diverting said air stream from said exhaust stack to said conduit, means including a series of high pressure spray nozzles located upstream in said conduit and outside said housing for creating a fog area in said conduit through which said air stream passes for first water moistening of fine particulate matter contained therein; means including a series of low pressure nozzles positioned in said conduit downstream end downstream of said series of high pressure nozzles for water moistening of large particulate matter contained in said air stream, means including a series of spaced water jets tangentially arranged around the interior periphery of said conical shapEd bottom of said housing for creating a whirlpool in said conical bottom of said housing for impingement of said air stream from said conduit thereon to remove the particulate matter from said air stream as well as treat any water soluble or water reactant vapors in said air stream from said conduit, adjustable extension conduit means positioned on the terminating end of said conduit for adjusting the distance from said whirlpool, means for removing said slurry generated in said whirlpool by the treatment of said air stream having said pollutants contained therein, and demisting means consisting of several parallel layers of fine mesh steel fabric positioned at the top of said housing for demisting the treated air stream from said conduit and said whirlpool.
Claim 4
Dependent Claim
322 words
A fog impingement scrubbing system, comprising, structure defining a cylindrical shaped housing having a conical shaped bottom and a conical shaped top connected to an exhaust stack, a conduit connected to said exhaust stack for introducing into said housing an air stream from said exhaust stack to be treated for pollutants including particulate matter and water soluble and/or water reactant vapors contained therein, said conduit having a downstream end arranged concentrically of said housing and extending along the longitudinal axis of said housing, said conduit terminating above said conical shaped bottom, means for diverting said air stream from said exhaust stack to said conduit, means including a series of high pressure spray nozzles located upstream in said conduit and outside said housing for creating a fog area in said conduit through which said air stream passes for first water moistening of fine particulate matter contained therein; means including a series of low pressure nozzles positioned in said conduit downstream end downstream of said series of high pressure nozzles for water moistening of large particulate matter contained in said air stream, means including a series of spaced water jets tangentially arranged around the interior periphery of said conical shapEd bottom of said housing for creating a whirlpool in said conical bottom of said housing for impingement of said air stream from said conduit thereon to remove the particulate matter from said air stream as well as treat any water soluble or water reactant vapors in said air stream from said conduit, adjustable extension conduit means positioned on the terminating end of said conduit for adjusting the distance from said whirlpool, means for removing said slurry generated in said whirlpool by the treatment of said air stream having said pollutants contained therein, and demisting means consisting of several parallel layers of fine mesh steel fabric positioned at the top of said housing for demisting the treated air stream from said conduit and said whirlpool.
Claim 5
Dependent Claim
28 words
A fog impingement scrubbing system as recited in claim 1, wherein the means including a series of high pressure spray nozzles consists of a high pressure pumping system.
Claim 6
Dependent Claim
37 words
A fog impingement scrubbing system as recited in claim 1, wherein said high pressure nozzles are positioned around the periphery of said conduit and are directed in the same direction as the flow of said air stream.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |