熔炼反射炉用纯氧燃烧装置的设计及燃烧方法

Design and Combustion Method of Pure Oxygen Combustion Device for Smelting Reverberatory Furnace

铝熔炼反射炉配备了蓄热式空气助燃烧嘴,烧嘴产生的火焰温度越高,就越节能,炉子的熔化率也就越高,然而同时会生成更多的氮氧化物,导致更多的铝烧损。本设计的目的在于克服现有技术中的不足,提供一种有效降低氮氧化物排放和铝烧损的熔炼反射炉用纯氧燃烧装置及燃烧方法。燃烧过程为低温的纯氧燃烧过程,可有效降低氮氧化物的排放和减少铝烧损。通过该装置燃烧,反射炉内弥散火焰的火焰真实温度为1400~1700℃,氮氧化物降低,铝烧损降低。

The aluminum smelting reverberatory furnace is equipped with a regenerative air-assisted burner.The higher the flame temperature generated by the burner,the more energy-saving and the higher the melting rate of the furnace.However,more nitrogen oxides are generated at the same time,resulting in more aluminum burns.The purpose of this design was to overcome the deficiencies in the prior art and provide a pure oxygen combustion device and combustion method for smelting reverberatory furnaces that can effectively reduce nitrogen oxide emissions and aluminum burning loss.The combustion process was a low-temperature pure oxygen combustion process,which can effectively reduce nitrogen oxide emissions and reduce aluminum burning loss.Through this device,the true flame temperature of the diffuse flame in the reverberatory furnace was 1400~1700℃,nitrogen oxides were reduced,and aluminum burning loss was reduced.