| 煤中矿物质对灰熔融温度影响的三元相图分析 |
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| 引用本文： | 李帆,邱建荣,郑楚光.煤中矿物质对灰熔融温度影响的三元相图分析[J].华中科技大学学报(自然科学版),1996(10). |
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| 作者姓名： | 李帆 邱建荣 郑楚光 |
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| 作者单位： | 煤燃烧国家重点实验室 |
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| 摘 要： | 采用ＣａＯ和Ｆｅ２Ｏ３添加剂按不同比例掺入煤灰中制成混合灰样，对混合灰样的熔融特性及其矿物组成进行试验研究，并利用三元系统相图进行分析．结果表明，在还原性气氛下，混合灰样与ＣａＯ－Ａｌ２Ｏ３－ＳｉＯ２和ＦｅＯ－Ａｌ２Ｏ３－ＳｉＯ２三元系统相图具有相似的熔融特性温度曲线；在高温下混合灰样的矿物组成与三元系统相图的矿物组成基本一致
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| 关 键 词： | 煤灰 灰熔点 矿物质 三元相图 结渣 |
The Effect of Mineral Matter in Coal on the Ash Melting Point with Ternary Phase Diagram |
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| Li Fan Dept. of Power Eng.,HUST,Wuhan ,China. Qiu Jianrong Zheng Chuguang.The Effect of Mineral Matter in Coal on the Ash Melting Point with Ternary Phase Diagram[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1996(10). |
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| Authors: | Li Fan Dept of Power Eng HUST Wuhan China Qiu Jianrong Zheng Chuguang |
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| Institution: | Li Fan Dept. of Power Eng.,HUST,Wuhan 430074,China. Qiu Jianrong Zheng Chuguang |
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| Abstract: | Mixed ash samples are prepared with coal ashes and additives of CaO and Fe 2O 3 in different ratios. The melting characteristics and the mineral composition of the samples have been experimentally investigated and a ternary phase diagram is used in the study. It is shown taht, in reducing atmosphere, the melting point characteristics of the samples are similar to those of the phase diagrams of the ternary systems CaO Al 2O 3 SiO 2 and FeO Al 2O 3 SiO 2. At high temperatures, the mineral composition of the samples is nearly the same as that of the ternary systems. |
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| Keywords: | coal ash melting point of ash mineral matter ternary phase diagram slagging |
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