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OALib Journal期刊
ISSN: 2333-9721
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煤粉密度对煤质及其燃烧特性的影响
, PP. 87-91
Keywords: 煤粉密度,沉浮分离,热重分析,燃烧特性,煤质特性
Abstract:
利用重液沉浮分离方法将一种烟煤分成6个不同密度段的煤样。通过对各密度段的煤样进行工业分析、元素分析和热重分析，研究了煤粉密度对煤质及其燃烧特性的影响。结果表明：随着煤粉密度的增加，挥发分和固定碳的含量逐渐减少，灰分含量逐渐增加；煤中元素c和n的含量也随着密度的增加而逐渐减小；随着密度的增加，煤粉的着火温度、固定碳着火温度降低，煤粉最大燃烧速率和反应放热峰值及其对应的温度降低；中等密度煤粉的燃烧反应性要优于高密度和低密度煤粉。
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