煤粉炉使用预燃室燃烧器点火和低负荷稳燃效益显著。但燃用高灰份低质烟煤,存在积粉和燃烧不稳等问题,影响使用效果。我单位1984年和1985年在两台WGZ—50/39—1型煤粉炉前墙各安装两台容量为1吨/时的预燃室燃烧器燃用发热量Q_D~Y=3500大卡/公斤,灰份A~Y=45％,挥发份V~Y=21％; Pulverized coal burner using pre-combustion chamber ignition and stable combustion at low load significant benefits. However, burning high-ash low-quality bituminous coal, the existence of powder and burning instability and other issues, affecting the use of results. My unit in 1984 and 1985 in the two WGZ-50 / 39-1 type pulverized coal furnace front wall to install two capacity of 1 ton / hour pre-combustion chamber burner calorific value Q_D ~ Y = 3500Kcal / Kg, Ash A ~ Y = 45%, volatile V ~ Y = 21%;