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 °C, that cement dust would not precipitate well by the electrostatic precipitator.
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Ahn, YC., Cho, JM., Kim, GT. et al. Physical, chemical and electrical analysis of dust generated from cement plants for dust removal with an electrostatic precipitator. Korean J. Chem. Eng. 21, 182–186 (2004). https://doi.org/10.1007/BF02705396
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DOI: https://doi.org/10.1007/BF02705396