The chrysanthemum drying room produced by our company uses cold air to be heated through a heat exchanger, and adopts a scientific and reasonable circulation method to make the hot air flow through the dried material on the bed surface for uniform heat and mass exchange. The hot air flow in each unit of the machine is circulated by the circulating fan, and then the low-temperature and high humidity air is discharged to smoothly complete the entire drying process. An independent temperature control system is used to control the temperature in the product area. At the same time, the temperature controller can scroll and display any temperature in the testing area in real-time. It can also monitor the temperature in the load area to prevent it from being too high, making it convenient for customers to grasp the temperature situation in the drying room. The control system is also equipped with various protection functions, including over temperature alarm protection, fan fault alarm protection, etc. The complete protection functions ensure that the chrysanthemum drying room can operate stably and without faults for a long time, meeting environmental standards.