Investigation on the Dioxin Emission from a Commercial Sintering Plant
スポンサーリンク
概要
- 論文の詳細を見る
Recent studies concerning the dioxin emission from the iron ore sintering process have clarified a dominant mechanism of dioxin formation and the substances to promote or to inhibit the reaction. In this paper, a detailed analysis of the exhaust gas at the Oita No. 1 sintering plant has specified the strand positions where dioxins were released into the exhaust gas. The release of dioxins was detected at two different positions. The first release position was located at the point where the drying zone reached the hearth layer, showing a broad peak containing a large amount of furans. The second release position was located at the point where the melting zone reached the heath layer, showing a sharp peak. Differences in dioxin congeners at the release positions imply a different mechanism of dioxin formation. The dioxins of the second release are considered to be formed in wind boxes at temperatures of 300°C or more. Controlling the burn through point to the discharge end is supposed to be effective for decreasing the dioxin emission in the second step.
- 社団法人 日本鉄鋼協会の論文
- 2006-07-15
著者
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Kasama Shunji
Ironmaking R & D Div. Environmental & Process Technol. Center Nippon Steel Corp.
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Yamamura Yuichi
Oita Works Nippon Steel Corp.
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Kasama Shunji
Environment & Process Technol. Center Nippon Steel Corp.
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WATANABE Kazuomi
Oita Works, Nippon Steel Corp.
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Watanabe Kazuomi
Oita Works Nippon Steel Corp.
関連論文
- Analysis of Exhaust Gas Visibility in Iron Ore Sintering Plant
- Investigation on the Dioxin Emission from a Commercial Sintering Plant
- Theoretical Characterization of Steady-state Heat Wave Propagating in Iron Ore Sintering Bed
- Quantitative Effect of Micro-particles in Iron Ore on the Optimum Granulation Moisture