列管式回转窑物料停留时间的分析

摘要

为了能较精确地预测列管式回转窑的物料停留时间,通过理论分析内部构件对物料填充率及停留时间的影响,并通过Φ500mm×8100mm回转窑上对三种物料进行物料停留时间试验,提出在列管式回转窑填充率15%~25%时,动态安息角对物料停留时间的影响,并提出原煤、油砂物料的近似计算值,基本符合原煤、油砂实际生产设备的运行数据.该结果可为列管式回转窑的物料的停留时间提供参考.%In order to accurately predict the tubular rotary kiln residence time,through theoretical analysis of internal components filling rate and residence time of the material,and the phi 500 * 8100 rotary kiln of three kinds of materials,the residence time of the material test,put forward the rotary kiln filling rate of 15% to 25% in the back tube,influence dynamic repose angle on the material retention time,and put forward the approximate calculation of coal,oil sands material,accord with the practical operation data of coal and oil sands production equipment.The analysis results can provide reference to the residence time of the rotary kiln tube material.