[특허]Method and apparatus for cleaning waste flue gases

[미국특허] Method and apparatus for cleaning waste flue gases 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-053/34
출원번호	US-0801328 (1977-05-27)
우선권정보	JP-0107811 (1970-12-04)
발명자 / 주소	Isahaya Fumio (Hitachi JPX) Yukitake Tugihiro (Ibaraki JPX)
출원인 / 주소	Hitachi, Ltd. (JPX 03)
인용정보	피인용 횟수 : 17 인용 특허 : 0

초록 ▼

A waste flue gas cleaning method and an apparatus for practicing said method, in which a reactant solution is sprayed into a waste flue gas introduced into a spray tower, whereby a toxic component in the flue gas is caused to be absorbed in and react with the droplets of the sprayed reactant solution, and the water contained in the droplets is vaporized and the reaction products are dried into solid particles by the sensible heat of said flue gas. A series of the above operation is accomplished within the spray tower while maintaining the outlet gas temperature always above the dew point of the flue gas, and the solid particles of the reaction products are removed from the flue gas by an after dust collector.

대표청구항 ▼

A method of cleaning waste flue gas, which comprises the steps of: (a) spraying an aqueous reactant solution into a waste flue gas introduced into a tower, said waste flue gas containing a water content of about 10% by volume, (b) absorbing and reacting toxic gas in the flue gas in and with droplets of the sprayed reactant solution, (c) vaporizing water from the droplets and drying the reaction products by the sensible heat of the waste flue gas, all of the above steps of operation being completed within the tower. (d) separating and collecting the reaction products in the form of solid particles, (e) controlling the temperature of the waste flue gas discharged from the tower into the atmosphere above the dew point, such that atmospheric pollution by the discharged flue gas is prevented, by controlling the amount of water in said aqueous reactant solution and the amount of said reactant solution; said step (e) being carried out by the steps of: (f) detecting the concentration of toxic gas in said waste flue gas and generating a first electrical signal, (g) detecting the flow rate of said waste flue gas and generating a second electrical signal, (h) regulating the flow rate of said reactant solution as a function of said first and second electrical signals to supply said reactant solution in an amount at least equivalent to the amount of said toxic gas, (i) detecting the temperature of the discharged waste flue gas and generating a third electrical signal, (j) regulating the flow rate of water mixed with said reactant solution as a function of said third electrical signal, and (k) supplying said reactant solution to which the flow rate of water has been regulated to said waste flue gas in said tower.

이 특허를 인용한 특허 (17) 인용/피인용 타임라인 분석

Givargis John, Air cleaning system.
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Luo, Jing; Wang, Jingyong; Zhang, Jun, Ammonia-adding system for ammonia-based desulfurization device.
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Luo, Jing; Wang, Jinyong, Ammonia-adding system for ammonia-based desulfurization device.
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Luo, Jing; Wang, Jinyong; Zhang, Jun, Ammonia-adding system for ammonia-based desulfurization device.
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Marnet Crysanth (Dsseldorf DEX) Kassebohm Borchert (Dsseldorf DEX), Apparatus for neutralization of acidic pollutants in flue gases.
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Hawks, Ronald L.; Schwab, James J., Chloride/sulfate removal system.
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Schuetzenduebel Wolfram G. (Pike Road AL) Honan James T. (Montgomery AL), Controlling pollutants from boilers.
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Shiraishi Yoshihiro (Hiroshima JPX) Ukawa Naohiko (Hiroshima JPX), Controlling the injection of ammonia in a dry type exhaust gas denitration process.
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Schwab James J. ; Hawks Ronald L., Detached plume abatement method.
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Givargis, John, Filtering system for removing combustion gases from an airflow.
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Odenmo Peter,SEX, Method for cleaning process gases.
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Karger Robert (Dortmund DEX) Dungs Horst (Herne DEX), Method for cooling and separating chlorides and fluorides from ammoniacal gas.
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Lin, Wen-Hao; Hsiao, Pi-Chung, Method for purifying exhaust of waste gas using atomized fluid droplets combined with turbulent flow.
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Krodel,Gunter; Fabian,Lutz; Hopfe,Volkmar, Method for purifying process waste gases.
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Hottovy John D., Process for treating fluid streams.
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James J. Schwab, Sulfur dioxide abatement method.
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Malki Khaldoun W. (Birmingham AL) Angelini Edward J. (Birmingham AL), Temperature control for dry SO₂ scrubbing system.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Method and apparatus for cleaning waste flue gases 원문보기