目前我国农村粮食干燥机械化的作业程度较低，关键是缺乏经济实用、技术可靠的干燥设备，中小型粮食干燥设备在农村有很大的市场需求。中国农业大学最近开发成功的农用平床式逆流干燥机，是九五国家科技攻关项目“农业机械化实用技术研究”中“农用中小型粮食干燥设备的研制开 At present, the mechanization of grain drying in rural areas in China is relatively low, the key is the lack of economic and practical, reliable drying equipment, small and medium-sized grain drying equipment in rural areas have great market demand. China Agricultural University recently successful development of agricultural bed-type counter-current dryer, ninety-five national scientific and technological project “Agricultural Mechanization Practical Technology Research” in the development of agricultural small and medium-sized grain drying equipment