Taking a φ2.3 m×55 m carbon rotary kiln for example, numerical simulations were conducted on the gas and solid spaces of the kiln using the Fluent and Matlab softwares. The influences of parameters such as the secondary and tertiary air inlet positions and air flow, turn-down rigs on the kiln lining, filling ratio of solids, rotation speed of the kiln on the kiln temperature were predicted. The results indicate that,if the secondary and tertiary air inlet positions and air flow, or the size and the number of the turn-down rigs are reasonably designed, the kiln temperature will be increased, resulting in the improvement for the quality of the calcined cokes. In addition, properly increasing the filling ratio of solids or rotation speed can increase the kiln output and ensure the quality of the calcined cokes at the same time.%以某炭素厂φ2.3 m×55 m的回转窑作为研究对象,运用流体模拟软件Fluent 和Matlab 分别对回转窑内气体空间和物料料层内的传热过程进行了模拟,预测了回转窑参数如二、三次供风量和位置、翻料装置、物料填充率、窑转速等对窑内温度场的影响.结果表明合理布置二、三次风供风量和位置、设定翻料装置的尺寸和个数能够有效提高窑内温度,进而提高煅后焦质量;合理增加物料填充率和提高窑转速既能够提高回转窑产能,又能够保证煅后焦质量.
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