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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 12    No. 3    June 2002

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Purification technology of flue gas
from remelting process of aluminum
alloy tailings
LI Cai-ting(李彩亭), ZENG Guang-ming(曾光明), WEI Xian-xun(魏先勋),
YUAN Xing-zhong(袁兴中), WANG Li-ping(王丽平)

Department of Environmental Science and Engineering,
Hunan University, Changsha 410082, China

Abstract:Through a practical example of treatment of the flue gas from the remelting process of aluminum alloy tailings, the design an d calculation method of exhaust hood, as well as the principles and the equipment s of dust removal, smoke abatement and harmful gas elimination were studied. Com bination of centrifugal and wet dust removal can purify the dust high efficiently. The carbon black and harmful gases in the flue gas can be removed by adding a small quantity of activator to the absorption solution. The application results are that the dedusting efficiency is 97.43%, Cl2 control efficiency is 88.03%, the exhaustfume blackness is lower than Ringelman number I, and the purification device resistance is 126Pa.

 

Key words: aluminum alloy tailings; flue gas; purification

ISSN 1672-7029
CN 43-1423/U

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