颗粒物料进入旋转闪蒸干燥机后，热气流将热量传给其表面，水份蒸发并扩散，此时引起其表面和内部的水份差，水份从颗粒内部扩散到表面，再扩散．如此循环往复．最终达到整个颗粒的干燥。本文探讨了机内颗粒的运动状态、干燥过程，并以高岭土为例，说明了干燥产品的性能。 After the granular material enters the spin-drying dryer, the hot air conveys the heat to its surface, and the water evaporates and diffuses. At this time, the water on the surface and the interior is poor. The water diffuses from the interior of the particle to the surface and then diffuses. This cycle of reciprocation. Finally, the whole grain is dried. In this paper, the motion state and drying process of particles in the machine are discussed. Taking kaolin as an example, the performance of the dried product is illustrated.