| 片状化石燃料的循环流化床燃烧(Ⅰ)--片状颗粒的形貌描述和流态化阻力特征描述 |
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| 引用本文： | 刘柏谦,郭勇,赵禹民,王金鑫,戚峰. 片状化石燃料的循环流化床燃烧(Ⅰ)--片状颗粒的形貌描述和流态化阻力特征描述[J]. 北京科技大学学报, 2005, 27(2): 159-163 |
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| 作者姓名： | 刘柏谦 郭勇 赵禹民 王金鑫 戚峰 |
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| 作者单位： | 1. 北京科技大学机械工程学院,北京,100083
2. 北京昊昱公司电厂,北京,100083 |
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| 摘 要： | 比较了不同球形度概念对片状化石燃料的描述效果,研究了片状化石燃料球形度变化对其流态化特征的影响.分析了Krumbein球形度为0.1～0.4的京西无烟煤在一台50MW循环流化床锅炉上表现出来的特殊现象,如运行床温和炉膛压力大幅度波动、依靠排放冷渣保持稳定运行,揭示了这些现象发生的原因.
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| 关 键 词： | 流化床 燃烧 颗粒形貌 球形度 形状因子 化石燃料 循环流化床燃烧 片状颗粒 特征描述 流态化特征 阻力 boiler circulating fluidized bed particles behaviour Combustion fluidization quality characteristics 发生 特殊现象 稳定运行 排放 依靠 波动 炉膛压力 |
| 修稿时间： | 2004-04-10 |
Combustion behaviour of chip-shaped particles in a circulating fluidized bed boiler(Ⅰ): Discription of particle morphology and characteristics of fluidization quality |
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| LIU Baiqian,GUO Yong,Zhao Yumin,WANG Jinxin,QI Feng. Combustion behaviour of chip-shaped particles in a circulating fluidized bed boiler(Ⅰ): Discription of particle morphology and characteristics of fluidization quality[J]. Journal of University of Science and Technology Beijing, 2005, 27(2): 159-163 |
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| Authors: | LIU Baiqian GUO Yong Zhao Yumin WANG Jinxin QI Feng |
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| Abstract: | The effectiveness of classical sphericity and Krumbein sphericity was compared to discribe chip-shaped fossil fuel, and the influence of sphericity on fiuidization characteristics was studied. Some special pheno-mina in a 50 MW circulating fluidized bed boiler using an anthracit with Krumbein sphericities of 0.2-0.4 were discussed such as obvious fluctuations of dense phase temperature and furnace pressure as well as draining cold ash during operation, which can be explained by particle mophology. |
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| Keywords: | fluidized bed combustion particle morphology sphericity shape index |
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