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In relation to this article, we declare that there is no conflict of interest.
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Received February 17, 2003
Accepted September 5, 2003
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Physical, Chemical and Electrical Analysis of Dust Generated from Cement Plants for Dust Removal with an Electrostatic Precipitator

Department of Mechanical Engineering, Pusan National University, San 30, Jangjeon-Dong, Keumjeong-Ku, Busan 609-735, Korea 1Clean Air Technology Research Center, Korea Institute of Energy Research, 71-2 Jang-Dong, Yusung-Ku, Daejeon 305-343, Korea 2Department of Project Management, Korea Institute of Environmental Science and Technology, 613-2, Bulgwang-Dong, Eunpyeong-Gu, Seoul 122-706, Korea
dduddi07@chollian.net
Korean Journal of Chemical Engineering, January 2004, 21(1), 182-186(5), 10.1007/BF02705396
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Abstract

The physical, chemical and electrical characteristics of cement dust generated from a cement plant have been investigated by using a dust analyzer and a high voltage conductivity cell based on JIS B 9915. Major constituents of raw material cement dust generated from the first grinding process are CaO (41.77%), SiO2 (11.72%), Al2O3 (3.45%), and Fe2O3 (1.47%), while the cement clinker dust generated from the second grinding process consists of mainly CaO (48.09-65.50%), SiO2 (14.02-21.56%), Al2O3 (2.86-3.76%), and Fe2O3 (1.77-2.66%). Size distribution of the raw material cement dust is bi-modal in shape and the mass median diameter (MMD) is 3.68 μm, whereas the cement clinker dust also displays bi-modal distribution and the MMD of the cement clinker dust is in the range of 7.89-58.78 μm. The resistivity of raw material cement dust is so high as 1014 ohm·cm at 300 ℃, that cement dust would not precipitate well by the electrostatic precipitator.

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