丸粒化玉米种子干燥机理的试验研究

Study on Drying Mechanisation Test of Pelleted Corn Seeds

分析了加快种子中水分蒸发的途径,研究了丸粒化玉米种子干燥过程中水分的交换和转移规律,建立了丸粒化玉米种子薄层干燥的特性曲线。结果表明:丸粒化玉米种子干燥过程中,水分蒸发遵循指数规律下降。在一定温度下,根据实测数据做出相对湿度与平衡水分的关系曲线。用非线性回归分析法确定了丸粒化玉米种子的平衡水模型,并用麦夸特法拟合本研究试验数据,确定公式中参数值大小。

Way of acceleration seed moisture evaporation was confirmed. Character curve of pelleted corn seed thin layer drying was established. Moisture evaporation of pelleted corn seed drying followed index law. Moisture exchange and transfer law in the course of drying were analysed. Under this circumstance of regular temperature, relation curve of relative humidity and equilibrium moisture was known on the basis of actual measure. Equilibrium moisture model of pelleted corn seed was determined with unlinear regression analysis. Experiment data were simulated by marquardt parameter estimated method.