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沥青焦回转窑炉内传热特性的数值模拟

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摘要 回转窑内的燃烧和传热情况对回转窑窑壁耐火材料的使用寿命有很大影响。针对某沥青焦回转窑的结构和燃烧特性,考虑了窑内的对流、辐射换热以及挥发分燃烧伴随的吸热和放热过程,利用Fluent和Matlab建立三维模型进行耦合计算。结果表明,回转窑中存在两处高温区,其中窑头附近的高温区是煤气燃烧产生的,但其位于冷却带上,温度不会显著升高;而大量的挥发分气体在煅烧带附近燃烧,该区域内烟气温度可达1500℃,该部分窑衬易被烧坏。
出处 《山东工业技术》 2015年第5期115-115,共1页 Journal of Shandong Industrial Technology
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