干燥是农产品加工中的重要单元,也是其中耗能最大的单元。因而,研究节能干燥技术,对农产品加工具有重大的意义。节能主要体现在煤耗低、电耗低以及设备的一次性投资低等诸多方面。结合作者自身的实践,对近年来国内农产品加工中涌现出的一些节能干燥的新方法、新工艺、新结构以及干燥机热源的改进等方面进行总结,旨在全面推广节能干燥技术。 Drying is an important unit of agricultural products processing, but also the largest unit of energy consumption. Therefore, the study of energy-saving drying technology is of great significance to the processing of agricultural products. Energy-saving is mainly reflected in many aspects such as low coal consumption, low power consumption and low one-time investment of equipment. Based on the author’s own practice, this paper summarizes some new energy-saving drying methods, new techniques, new structures and improvement of heat sources of dryers that emerged in the processing of agricultural products in China in recent years, aiming to comprehensively promote energy-saving drying technology.