1. The shape, size, thickness, weight, texture, composition and other factors of Chinese herbal medicines affect the drying process.

2. Drying temperature: According to the different Chinese herbal medicines, try to choose a high drying temperature to speed up the drying speed while ensuring the drying quality.

3. Humidity: The moisture content of the materials varies depending on the dried medicinal materials and the picking time.

4. Wind speed of hot air medium: The speed of hot air medium in the Chinese herbal medicine drying equipment is related to the drying speed, material form and material characteristics.

5. Selection of drying speed and drying method: Drying should be carried out under appropriate technical parameters such as temperature, humidity and wind speed. To ensure that the pharmacological components of the material are maintained during the drying process.

6. Material placement method: Stacking thickness and placement method affect the drying speed. The stacking thickness of the Chinese herbal medicine drying equipment should be reasonably controlled to increase the heat exchange area and ventilation volume, thereby speeding up the drying speed.

7. Mixed drying of different varieties: In principle, Chinese herbal medicines are required to be dried with a single variety, and multiple varieties cannot be mixed together for drying.

8. Secondary drying: generally refers to the secondary drying of the dried and stored raw materials before processing of Chinese medicinal materials.

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