| 钛铁矿和高磷铁矿混合矿氧气顶吹熔融还原炼铁的工艺条件 |
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| 引用本文： | 郈亚丽,王华,卿山.钛铁矿和高磷铁矿混合矿氧气顶吹熔融还原炼铁的工艺条件[J].过程工程学报,2011,11(6):1024-1029. |
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| 作者姓名： | 郈亚丽 王华 卿山 |
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| 作者单位： | 昆明理工大学冶金与能源工程学院 昆明理工大学冶金与能源工程学院 昆明理工大学材料与冶金工程学院 |
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| 基金项目： | 国家自然科学基金，云南省教育厅重点资助项目 |
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| 摘 要： | 采用氧气顶吹熔融还原法进行了高磷铁矿和钛铁矿混合矿炼铁的实验研究，考察了熔渣四元碱度、反应温度、碳氧摩尔比、通氧时间、保温时间和氧流量对炼铁效果的影响. 结果表明，提高反应温度、在一定范围内增加CaO加入量、提高碳氧摩尔比、延长通氧时间和保温时间、增加氧流量都能不同程度地提高铁还原率. 确定的合理工艺条件为：温度1500℃，碱度1.3，碳氧摩尔比1.0，保温时间30 min，通氧时间10 min，氧流量350 L/h，在此条件下渣铁分离较好，铁还原率达96.17%.
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| 关 键 词： | 高磷铁矿 钛铁矿 熔融还原 炼铁 |
| 收稿时间： | 2011-9-7 |
| 修稿时间： | 2011-11-1 |
Smelting Conditions of Reduction Ironmaking from Ilmenite Mixed with High Phosphorus Iron Ore by Top-blown Oxygen |
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| HOU Ya-li,WANG Hua,QING Shan.Smelting Conditions of Reduction Ironmaking from Ilmenite Mixed with High Phosphorus Iron Ore by Top-blown Oxygen[J].Chinese Journal of Process Engineering,2011,11(6):1024-1029. |
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| Authors: | HOU Ya-li WANG Hua QING Shan |
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| Affiliation: | Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology College of Material and Metallurgy Engineering, Kunming University of Science and Technology |
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| Abstract: | The ironmaking process of oxygen top-blown smelting reduction from high phosphorus iron ore mixed with ilmenite was studied. The experiments were conducted to investigate the effects of slag basicity, temperature, molar ratio of carbon to oxygen, oxygen-blowing time, holding time and oxygen flow rate on iron recovery rate. The experimental results showed that the iron recovery rate increased with increasing of smelting temperature, content of CaO added, molar ratio of carbon to oxygen, oxygen-blowing time, holding time and oxygen flow rate within a certain range. The slag and iron were well separated and iron recovery rate was up to 96.17% under the conditions of holding time of 30 min at 1500℃, slag basicity of 1.3, molar ratio of carbon to oxygen of 1.0, oxygen-blowing time of 10 min and oxygen flow rate of 350 L/h. |
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| Keywords: | high phosphorus iron ore ilmenite smelting reduction ironmaking |
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