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根据强紫外线辐射空气可产生臭氧的原理,将经紫外辐射后的空气通入热天平与煤粉发生燃烧反应,采用热分析方法研究臭氧对煤粉燃烧的影响.实验表明紫外辐射空气得到的少量臭氧使煤粉燃烧的失重和放热时间提前.对煤粉燃烧的动力学进行分析,结果显示臭氧使煤粉燃烧反应的活化能降低.紫外线激发高温氧气产生氧原子的热力学计算结果表明:温度越高,氧分子越容易被紫外线激发为氧原子.提出了使用强紫外线辐射热风促进高炉喷煤燃烧的设想.
Based on the principle that strong ultraviolet radiation can produce ozone, the air irradiated by ultraviolet radiation is introduced into the thermobalance and the combustion reaction of pulverized coal is carried out, and the influence of ozone on pulverized coal combustion is studied by means of thermal analysis. Ozone causes the weight loss and exothermic time of coal combustion ahead of time.The kinetics of pulverized coal combustion is analyzed.The results show that the activation energy of coal combustion reaction is reduced by ozone.The thermodynamic calculation results of oxygen excited by high temperature oxygen by ultraviolet ray show that the temperature The higher the oxygen molecule is, the easier it is excited by UV light to be an oxygen atom.The idea of using strong UV radiation hot air to promote coal combustion in blast furnace was proposed.