大速差射流型双通道通用煤粉主燃烧器利用两股一次风的强烈引射，使该燃烧器具有较强的稳燃作用。本文介绍了在实际锅炉上作的冷热态试验结果，证实了腰部风和蒸汽射流对燃烧时的温度、回流量、着火位置的调节作用。 Large velocity differential flow dual-channel common pulverized coal main burner using two strands of strong primary air injection, the burner has a strong role in stabilizing combustion. In this paper, the results of hot and cold tests on actual boilers are introduced. The results show that the waist and steam jets regulate the combustion temperature, return flow and ignition position.