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提出喷吹煤粉有效热的概念,推导出其计算公式,并选用3种典型的唐钢喷吹煤粉进行计算.计算结果表明:3种煤粉的有效热与煤比呈非线性关系,其有效热值都比通常汁算煤粉在回旋区燃烧放出的热量要大.因此,对过去的理论燃烧温度计算公式中煤粉项热量进行了修正.修正结果表明:当煤比小于120kg/t时,修正前后的理论燃烧温度值几乎一致,但当煤比继续升高,修正后的理论燃烧温度大于修正前,并且其差值越来越大.这可能意味着煤粉大喷吹时,过去理论燃烧温度计算值偏低.

参考文献

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