一、前言 近年来,我国在煤粉燃烧技术发展方面取得了丰硕的成果,陆续开发成功了多项煤粉稳定燃烧装置如钝体煤粉燃烧器、大速差同向射流直流式煤粉预燃室和火焰稳定船式直流煤粉燃烧器以及夹心风浓缩燃烧器等。这些新型燃烧器的应用,大大改善了劣质煤的燃烧过程,煤粉燃烧着火提前,火焰稳定性加强,使劣质煤的燃烧利用达到了一个新的水平。 I. Introduction In recent years, China has achieved fruitful results in the development of pulverized coal combustion technology. Successfully developed a number of pulverized coal stabilized combustion plants such as blunt body pulverized coal burners, large velocity differential jet pulverized coal pulverizers Combustion chamber and flame stabilized ship-type DC pulverized coal burner and wind-concentrated burner. The application of these new burners has greatly improved the combustion process of poor quality coal. The combustion of pulverized coal is advanced and the stability of the flame is strengthened, so that the combustion and utilization of low quality coal has reached a new level.