总结了哈尔滨工业大学15年来对浓淡煤粉燃烧技术的研究成果，阐述了浓淡煤粉燃烧技术的原理及所具有的风包粉流动特点，并通过工业试验验证了风包粉原理。针对我国电站锅炉燃煤的特点，提出了需要解决的5个问题，指出了浓淡燃烧技术的发展方向。

This paper reviews and analyses the major findings of research during the last 15 years in Harbin Institute of Technology, on bias coal combustion technologies. Five problems in China's coal combustion in boilers of power plant are given. The theory and characteristics of air-surrounding-fuel flow of bias coal combustion technologies are introduced and analysed. Industrial experiments tested the theory of airsurrounding-fuel .To greatly decrease the NO_x emission, the paper points out the development of these technologies in the future.