一种高效、低 NO_x、强稳燃新型煤粉主燃烧器——双通道通用煤粉主燃烧器

A New Type of Pulverized Coal Main Burner Firing Stably with Efficiency and Low NO_x—Universal Pulverized Coal Main Burner with Double Air Conduit

本文介绍了在大速差射流燃烧技术的基础上,开发的一种“双通道通用煤粉主燃烧器”,它既保留了大速差射流燃烧技术的优点,又克服了它易结渣的缺点,具有煤种适应性广、低负荷运行范围大、点火节油率高,适用于四角、对冲、“W”型火焰炉等优异性能.工业应用表明,这种新型燃烧器具有效率高、NO_x排放量低及稳烧能力强的优点,是电力工业中煤粉锅炉燃烧器极有希望的换代产品.

The paper describes a new developed pulverized coalmain burner with double air conduit on the base of jet-com-bustion icchnology with high velocity difference.It keeps theadvantage of the jet-combustion technology with high veloci-ty difference without slagging.It's good behaviour is as fol-low:(1)wide adaptability to coal rank,(2)wide nang to lowload peration,(3)high rate of saving oil as igniting,(4)suita-ble to tangential firing,opposed firing and double arch fur-nace etc.The industrial application has shown that this newtype burner is of high efficiency,low No,emission,firingstably and is a great expectant replacement product of pulver.ized coal-fired boiler burner in utility.