分析了电厂不同炉型因燃烧煤种与设计煤种差异而引起的燃烧问题 ,如锅炉出力下降、不完全燃烧损失加大、燃烧不稳甚至熄火等。提出采取相应配煤原则和比例以提高稳燃性能的措施 ,主要有理清煤的燃烧特性 ,理清灰质特性、减少 SOX 排放、确定多种煤混合燃烧的最佳配比等。 The combustion problems caused by the difference of coal types and design coal types in different furnace types of power plant are analyzed, such as the decrease of boiler output, the increase of incomplete combustion loss, the instability of combustion and even the flameout. Proposed to take the appropriate principles and the proportion of coal blending to improve the stability of the performance of the measures, mainly to sort out the combustion characteristics of coal, clarify the characteristics of gray matter, reduce SOX emissions, determine the best mix of multiple coal combustion and so on.