| 钒钛烧结料床竖向不均匀烧结 |
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| 引用本文： | 白永强,程树森.钒钛烧结料床竖向不均匀烧结[J].北京科技大学学报,2011,33(6):694-701. |
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| 作者姓名： | 白永强 程树森 |
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| 作者单位： | 北京科技大学冶金与生态工程学院,北京,100083 |
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| 基金项目： | “十一五”国家科技支撑计划资助项目(No.2006BAE03A01); 国家自然科学基金资助项目(No.60872147) |
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| 摘 要： | 通过对钒钛烧结料床的不同料层进行测温,研究了不同深度烧结料成矿过程的温度变化曲线,利用火焰前锋速度和成矿前锋速度两个参数评价了台车竖向烧结的不均匀程度.结果表明:随着料层深度的增加,火焰前锋和成矿前锋迁移速度下降,说明台车下部料床的结构变化大,烧结透气性恶化;加强偏析布料效果,增大台车下部料粒的平均粒度和热态强度,对提高钒钛矿烧结利用系数至关重要.同时,对不同深度处的烧结矿进行矿相分析表明,钒钛烧结矿由磁铁矿、赤铁矿、铁酸钙、硅酸钙、钙钛矿和玻璃相六种主要矿物组成,随着料层深度的增加,磁铁矿、硅酸钙和钙钛矿含量增多,铁酸钙和赤铁矿含量下降.
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| 关 键 词： | 钒钛磁铁矿 烧结 成矿 透气性 矿相分析 |
Inhomogeneous vertical sintering of a sintering feed bed for vanadium-titanium magnetite |
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| BAI Yong-qiang,CHENG Shu-sen.Inhomogeneous vertical sintering of a sintering feed bed for vanadium-titanium magnetite[J].Journal of University of Science and Technology Beijing,2011,33(6):694-701. |
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| Authors: | BAI Yong-qiang CHENG Shu-sen |
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| Institution: | BAI Yong-qiang,CHENG Shu-sen Wingdingsj School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China |
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| Abstract: | Changes in temperature of vanadium-titanium magnetite sintering feed at different depths during mineralization processes were studied by measuring the temperature values of different sintering layers.Two quantitative parameters,flame front speed and mineralization front speed,were defined to evaluate the inhomogeneous degree of vertical sintering.The results show that the flame front speed and mineralization front speed decrease with increasing layer depth,indicating that there is a serious structural chang... |
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| Keywords: | vanadium-titanium magnetite sintering mineralization permeability mineralogical analysis |
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