水分含量既是粮食一个主要品质指标,又是影响粮食贮藏稳定性的一个重要因素.粮食水分高而又不及时处理,在存放过程中就容易发热、霉变.稻谷水分高,加工整品率低,品质差.运输或贮藏高水分粮也不经济.因此对高水分的粮食必须进行及时干燥.粮食干燥方法很多,主要是日光曝晒和机械烘干.日光曝晒的优点是有场地和劳力的地方都可以搞,缺点是受自然条件限制,占用劳力多,而用机械烘干可以不受气候条件限制,及时把粮食所含的高水分降下米. 粮食干燥机械种类很多,目前国内广泛应用的主要有滚筒烘干机、流化斜槽烘干机、烘干塔、喷动 Moisture content is not only a major quality index of grain, but also an important factor that affects the stability of grain storage .While the water content is high and not treated in time, it is easy to generate heat and mildew during storage. , Poor quality.Transportation or storage of high-moisture food is not economical.Therefore, high-moisture food must be dried in time.Many food drying methods, mainly sunlight exposure and mechanical drying. The advantages of sunlight exposure is the place and labor All can be done, the disadvantage is limited by natural conditions, labor-intensive, and mechanical drying can be free from climatic conditions, in a timely manner to lower the moisture contained in grain .Many varieties of food drying machinery, the main widely used in China A tumble dryer, fluidized trough dryer, drying tower, spouting