US4082522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus of cleaning dust-containing gases
Assignee: Kokudo Door Co Ltd
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Filing: 1975-07-30
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Granted: 1978-04-04
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Expires: 1995-07-30
Abstract
Abstract A system wherein a first dust-containing gas current is jetted out through a jetting port. A gas current is jetted out from a direction opposed to the first gas current, and both gas currents are made to collide with each other. The flow velocity of the dust-containing gas current is made to quickly and infinitely approach zero and only the contained dust is made to advance by its inertia force. A washing liquid is sent into the gas collision system, and the dust in the gas current is made to collide with the washing liquid at a high velocity by its inertia force. The dust in the gas is caught with the washing liquid. To make the dust-containing gas current collide with the gas current opposed to it, the dust-containing gas is pressed into a dust collector with means, such as a pump, and is jetted out through jetting ports opposed to each other in the dust collector. As a means of sending the washing liquid into the system wherein the gas current collides, and wherein gas flow velocity is made to quickly and infinitely approach zero and only the contained dust is made to advance by the inertia force, the washing liquid is pre-contained in the gas or sprinkled in the system, or the jetting ports opposed to each other are dipped in the washing liquid. The liquid pressure and jetting pressure are balanced with each other so that a film of the washing liquid may be formed in the gas current collision system.
Inventors
- 👤 Tetsuaki Koga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:11
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/06; B01D47/063
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
116 words
A method of cleaning a gas containing dust, comprising the steps of: directing gas in a dust collector structure into two gas currents, with at least one of said gas currents containing dust; directing said two currents through a washing liquid; colliding said two currents against each other by directing said currents towards each other in a directly opposing manner through two directly opposing spaced apart jetting ports; forming a liquid film between said opposing jetting ports by the jetting gas pressure of said two colliding gas currents; and cleaning said dust from said gas currents by pressing said at least one gas current containing dust against said liquid film formed between said opposing jetting ports.
Claim 2
Independent Claim
116 words
A method of cleaning a gas containing dust, comprising the steps of: directing gas in a dust collector structure into two gas currents, with at least one of said gas currents containing dust; directing said two currents through a washing liquid; colliding said two currents against each other by directing said currents towards each other in a directly opposing manner through two directly opposing spaced apart jetting ports; forming a liquid film between said opposing jetting ports by the jetting gas pressure of said two colliding gas currents; and cleaning said dust from said gas currents by pressing said at least one gas current containing dust against said liquid film formed between said opposing jetting ports.
Claim 3
Dependent Claim
38 words
The method of cleaning a gas containing dust in accordance with claim 1, wherein: each of said two gas currents contains dust; and said two gas currents containing dust are directed from a common gas current generating source.
Claim 4
Dependent Claim
37 words
The method of cleaning gas containing dust in accordance with claim 1, wherein: at least a portion of said washing liquid is applied through a liquid sprinkling tube disposed above the space between said opposing jetting ports.
Claim 5
Dependent Claim
24 words
The method of cleaning gas containing dust in accordance with claim 1, wherein: said two opposing jetting ports are disposed in said washing liquid.
Claim 6
Independent Claim
179 words
An apparatus for cleaning a gas containing dust, comprising: a dust collector structure provided with a gas feeding inlet device; at least one gas current generating source connected to said gas feeding inlet device; said gas feeding inlet device being provided with channels for directing gas supplied by said generating source into two currents, with at least one of said gas currents containing dust; said structure having a washing liquid disposed therein; said inlet device having two directly opposing spaced apart jetting ports provided in each of said channels, said jetting ports being disposed in said washing liquid so as to provide a gas-liquid contact zone; each of said gas currents being directed through said washing liquid and jetted out through a corresponding one of said opposing jetting ports so that said currents will collide with each other in a directly opposing manner; a liquid film formed between said jetting ports by said colliding gas currents for cleaning said gas containing dust; and said structure being provided with a clean gas discharge port communicating with said gas-liquid contact zone.
Claim 7
Independent Claim
179 words
An apparatus for cleaning a gas containing dust, comprising: a dust collector structure provided with a gas feeding inlet device; at least one gas current generating source connected to said gas feeding inlet device; said gas feeding inlet device being provided with channels for directing gas supplied by said generating source into two currents, with at least one of said gas currents containing dust; said structure having a washing liquid disposed therein; said inlet device having two directly opposing spaced apart jetting ports provided in each of said channels, said jetting ports being disposed in said washing liquid so as to provide a gas-liquid contact zone; each of said gas currents being directed through said washing liquid and jetted out through a corresponding one of said opposing jetting ports so that said currents will collide with each other in a directly opposing manner; a liquid film formed between said jetting ports by said colliding gas currents for cleaning said gas containing dust; and said structure being provided with a clean gas discharge port communicating with said gas-liquid contact zone.
Claim 8
Dependent Claim
31 words
An apparatus in accordance with claim 5, wherein: only one gas current generating source is provided connected to said gas feeding inlet device; and each of said gas currents contain dust.
Claim 9
Dependent Claim
84 words
An apparatus in accordance with claim 5, wherein: said dust collector structure includes an outer case with said gas feeding inlet device comprising a case disposed within said outer case; said outer case contains said liquid; said inner case is at least partially disposed in said washing liquid; the portion of said inner case which is disposed in said washing liquid communicates with said outer case and said portion includes said opposing jetting ports; and said discharge port is provided in said outer case.
Claim 10
Dependent Claim
32 words
An apparatus in accordance with claim 7, wherein: said opposing jetting ports are horizontally elongated jetting ports; and each said jetting port is provided with a plurality of wide partition sectioning walls.
Claim 11
Dependent Claim
30 words
An apparatus in accordance with claim 7, wherein: said outer case is provided with liquid volume regulating means for adjusting the volume of said washing liquid in said outer case.
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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) | 1981-04-03 | 1981-10-03 | 1982-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-03 | 1985-10-03 | 1986-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-03 | 1989-10-03 | 1990-04-04 | $7700.00 | Window Closed / Lapsed |