【作者】 王志鹏；

【导师】 余泳昌； 赵群；

【作者基本信息】 河南农业大学 ， 工业工程（专业学位）， 2015， 硕士

【摘要】 干燥是玉米收获后加工储藏的一个重要环节,干燥过程对玉米品质有很大的影响。干燥过程中参数的合理配置是提高玉米烘干后质量的重要手段。本文采用理论分析和试验研究相结合的方法,对收获后玉米干燥过程中重要参数进行验证和研究。其意义在于提高干燥效率,减少能耗,保证品质。通过正交试验,对刚收获玉米进行三因素四水平的干燥试验,研究分析各种实验因素对干燥特性的影响。选择不同湿度条件下(55%、60%、65%、70%)玉米籽粒干燥试验数据作为实测值样本,基于SPSS软件,利用回归分析法,对传统干燥模型进行数据拟合求解,确定干燥系数。最后通过决定系数R2、残差平方值和显著值F等评价指标对各种干燥模型的拟合优度进行评判分析,并再次通过实验数据进行结果验证。实验结果表明,page模型是最优模型,该模型可较好地预测整个过程的干燥速率和新鲜玉米籽粒各干燥阶段的水分变化状况,为研究玉米干燥提供理论基础。更多还原

【Abstract】 Drying is an important part of corn processing and storage after harvest, having a great influence of corn quality. Reasonable drying technology and parameters are important methods of improving the quality of dry corn. This article adopts the method of combining theoretical analysis with experimental research, to validate and research the important parameters in the process of corn drying. The significance is to improve the drying efficiency, reduce energy consumption and ensure the quality. This article adopts the method of orthogonal experiment, carrying out three factors, four levels of the corn drying experiments, to analyze the effects of experimental factors on the corn drying characteristics. Under condition of different humidity(55%, 60%, 65%, 70%), Choosing corn drying experiment data as the measured sample, based on SPSS software, using regression analysis method, make use of the data to solve the traditional drying models, obtaining the dry coefficients. Through the evaluation indexes of determination coefficient R2 and F to evaluate all kinds of drying models, finally use the experimental data for validation. The results show that the Page model is the optimal model. This model can accurately predict the corn moisture content and drying rate of each drying stage, applied to determine reasonable drying parameters, to achieve the goal of regulating dry environment and improving efficiency.更多还原