本文研究了谷物循环干燥机主要技术参数的关系,测出并分析了各参数对平均小时降水率、平均小时失水量、热耗值、烘后谷物品质等指标的影响程度,得出热风温度t_r、通风时间τ_t、风量比V_b为循环干燥的三个重要参数的结论,推荐t_r=56℃左右、τ_t=7～11min、V_b=0.5～0.7m~3·s~(-1)/(100kg)为较佳参数组合方案。 This paper studied the relationship between the main technical parameters of the grain circulation dryer, measured and analyzed the impact of each parameter on the indicators of the average hourly precipitation, the average hourly water loss, the heat consumption, the quality of the grain after baking, and obtained the hot air temperature t_r , Ventilation time τ_t and air volume ratio V_b are three important parameters of circulation drying. It is recommended that t_r = 56 ℃, τ_t = 7 ~ 11min, V_b = 0.5 ~ 0.7m ~ 3 · s -1 / 100kg ) As a better parameter combination scheme.