Patent US3823530A successfully refreshed from Google Patents.
US3823530A
Expired / Lapsed
US
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Method and apparatus for separating and collecting fine particles in gas with stream of falling molten metal drops
Assignee: JFE Engineering Corp
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Filing: 1972-12-18
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Granted: 1974-07-16
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Expires: 1992-12-18
Abstract
Abstract A method and apparatus for separating fine particles such as soot contained in hot gases, in which the gas is passed upward countercurrently to contact with the descending molten metal drops, whereby fine particles contained in the gas are attached to the falling molten metal drops and are thus separated from the gas.
Inventors
- 👤 T Miyashita
- 👤 L Chaussy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:33
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/06; B01D51/00; B01D51/02; C; C10; C10K; C10K1/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
33 words
A method according to claim 1, wherein said molten metal in said static bath is transferred and dropped again to contact with a countercurrent of hot gas, and said process iS continued repeatedly.
Claim 2
Dependent Claim
40 words
A method according to claim 2, wherein said contact between streams of the molten metal drops and counter-currents of said hot gas is effected while collecting the soot separated on the surface of said static bath by a suitable means.
Claim 3
Dependent Claim
43 words
A method according to claim 3, wherein an inert gas is injected to apply pressure and to raise the level of the surface of said static bath, whereby the soot floated and separated on the surface of said static bath is easily collected.
Claim 4
Dependent Claim
24 words
A method according to claim 3, wherein the molten metal of said static bath is heated by a burner to adjust the temperature thereof.
Claim 5
Independent Claim
135 words
An apparatus for separating and collecting fine particles contained in a gas with a stream of falling molten metal drops comprising: tower means for contacting a stream of falling molten metal drops with a hot gas countercurrently; a static bath chamber connected to said tower means, having a discharge outlet and being adapted to receive and arrest said molten metal drops falling in said tower and having attached thereto fine particles such as soot contained in said hot gas; a soot collecting container having an inert gas hermetically filled therein coupled to said discharge outlet with a valve means; and means for interconnecting said tower means and said static bath chamber whereby the molten metal in said static bath chamber is transferred to the upper part of said tower means and dropped in said tower.
Claim 6
Dependent Claim
91 words
An apparatus according to claim 6, wherein said means for interconnecting said tower means and said static bath chamber and transferring the molten metal to the upper part of said tower means to thereby drop said molten metal in said tower, comprises an annular tube provided in the upper part of said tower, said annular tube including an inner tube portion having a plurality of nozzle openings and an outer tube portion connected to said inner tube portion, and an electromagnetic pump interconnecting said annular tube and said static bath chamber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |