Factors Accelerating Dioxin Emission from Iron Ore Sintering Machines
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概要
- 論文の詳細を見る
Causal factors for dioxin (D) emission from iron ore sintering machines has been investigated by means of pot tests designed with the two-level seven-factor orthogonal array (L8(27)) and multiple regression analysis on commercial plant data.EP dust, BF dust and purchased scale were major D-accelerators; quick lime was a D-suppressor. D emission was not a sum but a product event of those factors, and their coefficients were 28, 4, 4 and 0.7 times for 5% EP dust, 5% BF dust, 5% purchased scale and 2% quick lime additions, respectively. As for operational conditions, bed height, coke content, gas velocity and after burning had insignificant effects whereas the increase of hearth layer and the decrease of BTP position increased D emission, which implied the hearth layer and wind boxes could be other synthesis sites.
- 2009-05-15
著者
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NAKANO Masanori
Environment & Process Technology Center, Nippon Steel Corporation
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Sato Takehiko
Production Div. Hokkai Ironmaking Co.
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MORII Kazuyuki
Head Office, Nippon Steel Corporation
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Morii Kazuyuki
Head Office Nippon Steel Corporation
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Sato Takehiko
Production Division Hokkai Ironmaking Company
関連論文
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- Factors Accelerating Dioxin Emission from Iron Ore Sintering Machines
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- Theoretical Characterization of Steady-state Heat Wave Propagating in Iron Ore Sintering Bed
- Observation of Behavior of Dioxins and Some Relating Elements in Iron Ore Sintering Bed by Quenching Pot Test
- Influence of Operational Conditions on Dust Emission from Sintering Bed
- Design of Bed Structure Aiming the Control of Void Structure Formed in the Sinter Cake
- A Differential Analysis for the Cost Minimum Operation of Iron Ore Sintering Machines