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介绍了循环流化床锅炉(CFBB)飞灰再循环对燃烧效率的影响,分析了内江100 MW CFBB飞灰再循环与燃烧效率的关系。飞灰再循环份额的增加可提高锅炉燃烧效率,但也造成旋风分离器出口飞灰量的增加。对如何提高CFBB燃烧效率进行了简单分析,提出了一些其它方法。
The effect of CFBB fly ash recirculation on combustion efficiency is introduced. The relationship between NEB 100 MW CFBB fly ash recirculation and combustion efficiency is analyzed. Increased fly ash recycling share can increase the boiler combustion efficiency, but it also results in an increase in fly ash output at the cyclone outlet. A simple analysis on how to improve the combustion efficiency of CFBB has been made and some other methods have been put forward.