| 大颗粒煤流化床燃烧的微观过程 |
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| 引用本文： | 刘柏谦,田宝宝,李启博.大颗粒煤流化床燃烧的微观过程[J].北京科技大学学报,2008,30(3):299-301. |
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| 作者姓名： | 刘柏谦 田宝宝 李启博 |
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| 作者单位： | 北京科技大学机械工程学院,北京,100083 |
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| 基金项目： | 国家自然科学基金资助课题(No50476082) |
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| 摘 要： | 采用电镜扫描和图像处理技术、物理吸附等手段研究了大颗粒煤在流化床燃烧过程中的微观结构变化.结果发现:所研究的烟煤在流化床燃烧过程中,小于400像素的微观孔隙随燃烧过程大量增加,而大于400像素的孔隙数量则没有变化;同时伴随着煤颗粒的比表面积随燃烧时间的增加而明显增加.
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| 关 键 词： | 煤 流化床燃烧 孔隙 微观结构 |
| 修稿时间： | 2006年11月29 |
Micro-structure evolution of coarse particles in fluidized bed combustion process |
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| LIU Baiqian,TIAN Baobao,LI Qibo.Micro-structure evolution of coarse particles in fluidized bed combustion process[J].Journal of University of Science and Technology Beijing,2008,30(3):299-301. |
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| Authors: | LIU Baiqian TIAN Baobao LI Qibo |
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| Abstract: | Microstructure evolution of coarse particles in fluidized bed combustion (FBC) was investigated by SEM technology, diagram processing technology and physical absorption method. It was found that the quantity of micro-pores increased when their sizes were less than 400 pixels in diagram for bituminous coal, but never changed when their sizes were larger than 400 pixels. The specific surface area of coarse particles obviously increased with increasing combustion time during fluidized bed combustion. |
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| Keywords: | coal fluidized bed combustion pore microstructure |
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