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981494 
Journal Article 
Analysis of Exhaust Gas Visibility in Iron Ore Sintering Plant 
Kasama, S; Kitaguchi, H; Yamamura, Y; Watanabe, K; Umezu, A 
2009 
Yes 
Journal of Iron and Steel Research International
ISSN: 1006-706X 
16 
505-509 
English 
WOS:000273086300100 
Visible smoke of exhaust gas from iron ore sintering plants spoil the scenery around the works. In this paper, the mechanism of formation of visible smoke is discussed by detailed analysis of the exhaust gas components and dust in the Oita No. 1 sintering plant. The main substance of visible smoke was mist condensing in the air during the cooling of exhaust gas that contained sulfuric acid. Sulfuric acid is considered to facilitate mist condensation, and to lower the vaporization of visible mist. Dust in the exhaust gas is also considered to act as nucleation sites for mist condensation. This proposed mechanism was confirmed by a test in the Nagoya No.3 sintering plant. Long trails of visible smoke were observed by remixing SO(X)-rich gas with exhaust gas. In conclusion, desulfurization equipment is necessary to make exhaust gas invisible. 
iron ore sintering; sulfur oxide: KCl; dust; plant measurement; exhaust gas 
5th International Conference on Science and Technology of Ironmaking 
OCT 20-22, 2009