干燥机几乎是各产业生产过程的主要设备之一,干燥技术是伴随干燥机而发展起来的重要技术。文章介绍干燥机的原理、分类、适用范围、应用,简述了中国干燥技术的现状及发展方向。 Dryer is almost one of the main equipment in the industrial production process. Drying technology is an important technology developed along with the dryer. This article introduces the principle, classification, application scope and application of dryer, and briefly introduces the current situation and development direction of drying technology in China.