| 高磷铁矿直接熔融还原动力学研究 |
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| 引用本文： | 范国锋,卿山,王华,徐建新.高磷铁矿直接熔融还原动力学研究[J].昆明理工大学学报(理工版),2012(5):17-23. |
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| 作者姓名： | 范国锋 卿山 王华 徐建新 |
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| 作者单位： | 昆明理工大学 冶金节能减排教育部工程研究中心,云南 昆明650093 |
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| 基金项目： | 国家自然科学基金资助项目（51064015） |
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| 摘 要： | 通过在热重分析仪上对高磷铁矿不同碱度配比的直接熔融还原动力学试验,获取还原过程的热重数据（TG）和差热扫描量热数据（DSC）.首先利用TG-DSC曲线对整个氧化铁的碳直接还原过程进行了动力学机理分析,得到了惠民铁矿中氧化铁的直接还原过程特征;其次采用时间序列分析（Visual Recurrence analysis）中的相重构分析技术提取了高磷铁矿冶炼效果较好的碱度动态图特征,并对其特征进行了热力学阐释.该研究结果对了解高磷铁矿碳热还原规律具有一定的意义.
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| 关 键 词： | 高磷铁矿 直接熔融还原 时间序列 动力学 |
Kinetic Research for Direct Smelting Reduction of High-Phosphorus Iron Ore |
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| FAN Guo-feng,QING Shan,WANG Hua,XU Jian-xin.Kinetic Research for Direct Smelting Reduction of High-Phosphorus Iron Ore[J].Journal of Kunming University of Science and Technology(Natural Science Edition),2012(5):17-23. |
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| Authors: | FAN Guo-feng QING Shan WANG Hua XU Jian-xin |
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| Affiliation: | (Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction,Ministry of Education,Kunming University of Science and Technology,Kunming 650093,China) |
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| Abstract: | A series of direct smelting reduction experiments are carried out with high phosphorous iron ore of the different alkalinity by thermogravimetric analyzer.The thermogravimetric（TG） data and differential scanning calorimetry（DSC） are obtained from the experiments.Firstly the kinetic mechanism for the direct reduction of iron oxide in carbon are analyzed by the TG-DSC curve,and the reduction characteristics of iron oxide in Huimin iron ore are then obtained.Meanwhile the phase reconstruction analysis techniques of time series analysis（Visual Recurrence analysis） is employed to extract the dynamic map features for the alkalinity where reduction effect is better,and the characteristics are explained in thermodynamics.The results are helpful to understand the carbothermal reduction law of high-phosphorus iron ore. |
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| Keywords: | high-phosphorus iron ore direct smelting reduction time series kinetics |
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