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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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浙混煤燃烧及no释放特性试验研究
, PP. 44-48
Keywords: 混煤,燃烧特性,no,释放特性,热重？红外,沉降炉,过量空气系数
Abstract:
某电厂对420t/h锅炉进行了低nox燃烧器改造，为此对改造用浙混煤的燃烧和no释放特性进行了机理性研究。结果表明：不同升温速率下，污染物气体的释放特性基本相同，提高升温速率有利于提高煤样的反应活性，燃烧特性有所改善，但会造成燃烧过程滞后，no2的析出提前；随着沉降炉过量空气系数α的增大，浙混煤的no排放浓度显著增加，α在0.8～1.2时其影响最为显著；随着燃烧温度的增加，无论在氧化性气氛还是还原性气氛下浙混煤no排放浓度均增大，而且在氧化性气氛下增长幅度更大。
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