| 小麦秸秆流态化燃烧粘结特性实验研究 |
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| 引用本文： | 滕海鹏,李诗媛,吕清刚.小麦秸秆流态化燃烧粘结特性实验研究[J].工程热物理学报,2010(3). |
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| 作者姓名： | 滕海鹏 李诗媛 吕清刚 |
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| 作者单位： | 中国科学院工程热物理研究所;中国科学院研究生院; |
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| 基金项目： | 国家自然科学基金资助项目(No.50706055) |
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| 摘 要： | 在5 kW鼓泡流化床实验装置上,利用床层压差和温度的变化作为判断床层粘结失流的依据,以小麦秸秆成型颗粒作为研究对象,进行了燃烧温度、床料粒径和流化风速对失流时间影响的实验研究。实验结果表明:失流时间随着燃烧温度上升而缩短;流化风速增大,失流时间增长;床料粒径对失流时间影响不明显。对粘结物进行了SEM/EDX和XRF分析,分析结果表明,Si和K元素形成的熔融物对床料的粘结起重要的作用。
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| 关 键 词： | 秸秆 流态化 粘结 失流 |
EXPERIMENTAL STUDIES ON AGGLOMERATION CHARACTERISTICS OF WHEAT STALK COMBUSTION IN FLUIDIZED BED |
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| TENG Hai-Peng LI Shi-Yuan LU Qing-Gang.EXPERIMENTAL STUDIES ON AGGLOMERATION CHARACTERISTICS OF WHEAT STALK COMBUSTION IN FLUIDIZED BED[J].Journal of Engineering Thermophysics,2010(3). |
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| Authors: | TENG Hai-Peng LI Shi-Yuan LU Qing-Gang |
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| Institution: | 1;2;1.Institute of Engineering Thermophysics;Chinese Academy of Sciences;Beijing 100190;China;2.Graduate University of Chinese Academy of Sciences;Beijing 100049;China |
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| Abstract: | Wheat stalk was combusted in a 5 kW fluidized bed combustor to investigate the formation of bed agglomeration.Bed defluidization was determined by on-line measured bed temperatures and pressures.Tests under different combustion conditions were made to study the influence of temperature,gas velocity and bed particle size on agglomeration.Scanning electron microscopy/energy-dispersive X-ray spectrometry(SEM/EDX) and X-ray fluorescence(XRF) were applied to identify agglomerates.The temperature is the most impo... |
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| Keywords: | straw fluidization agglomeration defluidization |
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