O_2/CO_2气氛下粒径对煤粉燃烧特性的影响  

Effect of Particle Size on Combustion Characteristics of Pulverized Coal under O_2/CO_2 Atmosphere

作　　者：武国红 任静 WU Guo- hong1, REN Jing2(1. China National General Machinery Engineering Corporation 2. State Grid Hebei Electric Power Company Zhuozhou Power Supply Branch, Zhuozhou 072750, Hebei Province, Chin)

机构地区：[1]中国通用机械工程有限公司,北京100050 [2]国网河北省电力公司涿州供电分公司,河北涿州072750

出　　处：《应用能源技术》2018年第3期36-39,共4页Applied Energy Technology

摘　　要：利用热重分析法研究了粒径和氧气浓度对煤粉O_2/CO_2燃烧特性的影响。结果表明,在O_2/CO_2气氛中,减小煤粉粒径能和提高氧浓度均可以改善阳泉无烟煤的燃烧特性。随着氧浓度增加,煤粉的着火温度和燃尽温度均有所下降,燃尽时间缩短,煤粉的反应活性增强。The thermogravimetric experiments were performed to study the effect of particle size and oxygen concentration on＂ the combustion characteristics of pulverized coal in O2/CO2 atmosphere. The result shows that the decrease of particle size and the increase of oxygen concentration can improve the combustion characteristics of Yangquan anthracite in O2/CO2 atmosphere. As the oxygen concentration increases, both of the ignition temperature and the burnout temperature decrease, but the burnout time reduces, and the reactivity of pulverized coal is enhanced.

关 键 词：O2/CO2燃烧 粒径 燃烧特性 热重分析 

分 类 号：TM621.2[电气工程—电力系统及自动化]