Patent US3862907A successfully refreshed from Google Patents.
US3862907A
Expired / Lapsed
US
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Method for rapidly mixing different kinds of gas
Assignee: JFE Engineering Corp
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Filing: 1972-12-18
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Granted: 1975-01-28
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Expires: 1992-12-18
Abstract
Abstract A method for rapidly mixing two kinds of gas which comprises introducing one kind of gas having a higher density than the other kind of gas into the upper part of a cyclone-type gas mixing chamber through an upper gas inlet pipe communicating with a hole bored in the mixing chamber in a tangential direction, and simultaneously introducing the other kind of gas into the lower part of said gas mixing chamber through another gas inlet pipe communicating with a hole formed in the mixing chamber and disposed in the opposite tangential direction to that in which said upper gas is swirled in the gas mixing chamber, wherein the vertical distance between the two gas inlet pipes is 1.5 to 3.0 times the diameter of the upper gas inlet pipe, the lower gas enters the mixing chamber at a linear velocity 1.15 to 20.0 times that of the upper gas, and the upper gas has a vortical flow at a swirling linear velocity 1.0 to 3.5 times the vertical velocity at which said gas is gradually brought downward while spirally flowing.
Inventors
- 👤 Teruo Shimotsuma
- 👤 Kazuo Sano
- 👤 Yutaka Fukuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:15
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/10; B01J; B01J12/00; B01J19/00; B01J19/24; B01J19/2405; Y; Y10; Y10S; Y10S423/00; Y10S423/07
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
217 words
A METHOD FOR RAPIDLY MIXING AT LEAST TWO DIFFERENT KINDS OF GASES WHICH COMPRISES INTRODUCING A FIRST GAS INTO THE UPPER PART OF A CYCLONE-TYPE GAS MIXING CHAMBER HAVING A LONGITUDINAL AXIS THROUGH AN UPPER GAS INLET PIPE DISPOSED IN A TANGENTIAL DIRECTION TO THE PERIPHERY OF SAID CHAMBER; AND SIMULTANEOUSLY INTRODUCING A SECOND GAS HAVING A LOWER DENSITY THAN SAID FIRST GAS INTO THE LOWER PART OF SAID MIXING CHAMBER THROUGH A LOWER GAS INLET PIPE DISPOSED IN A TANGENTIAL DIRECTION TO SAID PERIPHERY AND IN AN OPPOSITE GAS SWIRLING DIRECTION TO THAT OF SAID FIRST GAS, BOTH GASES SWIRLING VORTICALLY ABOUT SAID LONGITUDINAL AXIS, THE VERTICAL DISTANCE BETWEEN SAID GAS INLETS BEING FROM 1.5 TO 3.0 TIMES THE DIAMETER OF SAID UPPER GAS INLET PIPE; SAID SECOND GAS ENTERING SAID MIXING CHAMBER AT A LINEAR VELOCITY 1.15 TO 20.0 TIMES THAT AT WHICH SAID FIRST GAS ENTERS SAID MIXING CHAMBER; SAID FIRST GAS SUPPLIED TO THE MIXING CHAMBER THROUGH THE UPPER GAS INLET PIPE HAVING A VORTICAL FLOW AT A SWIRLING LINEAR VELOCITY 1.0 TO 3.5 TIMES THE VERTICAL VELOCITY AT WHICH SAID GAS IS GRADUALLY BROUGHT DOWNWARD WHILE SPIRALLY FLOWING; WHEREBY SAID GASES ARE MIXED, AND WITHDRAWING SAID MIXED GAS THROUGH AN OUTLET POSITIONED IN SAID MIXING CHAMBER BELOW SAID LOWER GAS INLET PIPE.
Claim 2
Independent Claim
217 words
A METHOD FOR RAPIDLY MIXING AT LEAST TWO DIFFERENT KINDS OF GASES WHICH COMPRISES INTRODUCING A FIRST GAS INTO THE UPPER PART OF A CYCLONE-TYPE GAS MIXING CHAMBER HAVING A LONGITUDINAL AXIS THROUGH AN UPPER GAS INLET PIPE DISPOSED IN A TANGENTIAL DIRECTION TO THE PERIPHERY OF SAID CHAMBER; AND SIMULTANEOUSLY INTRODUCING A SECOND GAS HAVING A LOWER DENSITY THAN SAID FIRST GAS INTO THE LOWER PART OF SAID MIXING CHAMBER THROUGH A LOWER GAS INLET PIPE DISPOSED IN A TANGENTIAL DIRECTION TO SAID PERIPHERY AND IN AN OPPOSITE GAS SWIRLING DIRECTION TO THAT OF SAID FIRST GAS, BOTH GASES SWIRLING VORTICALLY ABOUT SAID LONGITUDINAL AXIS, THE VERTICAL DISTANCE BETWEEN SAID GAS INLETS BEING FROM 1.5 TO 3.0 TIMES THE DIAMETER OF SAID UPPER GAS INLET PIPE; SAID SECOND GAS ENTERING SAID MIXING CHAMBER AT A LINEAR VELOCITY 1.15 TO 20.0 TIMES THAT AT WHICH SAID FIRST GAS ENTERS SAID MIXING CHAMBER; SAID FIRST GAS SUPPLIED TO THE MIXING CHAMBER THROUGH THE UPPER GAS INLET PIPE HAVING A VORTICAL FLOW AT A SWIRLING LINEAR VELOCITY 1.0 TO 3.5 TIMES THE VERTICAL VELOCITY AT WHICH SAID GAS IS GRADUALLY BROUGHT DOWNWARD WHILE SPIRALLY FLOWING; WHEREBY SAID GASES ARE MIXED, AND WITHDRAWING SAID MIXED GAS THROUGH AN OUTLET POSITIONED IN SAID MIXING CHAMBER BELOW SAID LOWER GAS INLET PIPE.
Claim 3
Independent Claim
208 words
A method for rapidly mixing and reacting blast furnace gas with coke oven gas which comprises introducing blast furnace gas into the upper part of a cyclone-type gas mixing chamber having a longitudinal axis through an upper gas inlet pipe in a tangential direction to the periphery of said chamber; and simultaneously introducing coke oven gas into the lower part of said mixing chamber through a lower gas inlet pipe disposed in a tangential direction to said periphery and in an opposite gas swirling direction to that of said blast furnace gas; both gases swirling vortically about said longitudinal axis; the vertical distance between both gas inlet pipes being from 1.5 to 3.0 times the diameter of said upper gas inlet pipe; the coke oven gas entering said mixing chamber at a linear veloctiy 1.15 to 20.0 times that at which said blast furnace gas enters said mixing chamber; said blast furnace gas entering said mixing chamber to cause vortical flow at a swirling linear velocity 1.0 to 3.5 times the vertical velocity at which said gas is gradually brought downward while spirally flowing, whereby said gases are mixed, and withdrawing said mixed gas through an outlet positioned in said mixing chamber below said lower gas inlet pipe.
Claim 4
Independent Claim
208 words
A method for rapidly mixing and reacting blast furnace gas with coke oven gas which comprises introducing blast furnace gas into the upper part of a cyclone-type gas mixing chamber having a longitudinal axis through an upper gas inlet pipe in a tangential direction to the periphery of said chamber; and simultaneously introducing coke oven gas into the lower part of said mixing chamber through a lower gas inlet pipe disposed in a tangential direction to said periphery and in an opposite gas swirling direction to that of said blast furnace gas; both gases swirling vortically about said longitudinal axis; the vertical distance between both gas inlet pipes being from 1.5 to 3.0 times the diameter of said upper gas inlet pipe; the coke oven gas entering said mixing chamber at a linear veloctiy 1.15 to 20.0 times that at which said blast furnace gas enters said mixing chamber; said blast furnace gas entering said mixing chamber to cause vortical flow at a swirling linear velocity 1.0 to 3.5 times the vertical velocity at which said gas is gradually brought downward while spirally flowing, whereby said gases are mixed, and withdrawing said mixed gas through an outlet positioned in said mixing chamber below said lower gas inlet pipe.
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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) | 1978-01-27 | 1978-07-29 | 1979-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-27 | 1982-07-29 | 1983-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-27 | 1986-07-29 | 1987-01-28 | $7700.00 | Window Closed / Lapsed |