【正文】
能經(jīng)歷的過(guò)程或出現(xiàn)的結(jié)果。 Drying monly describes the process of thermally removing volatile substances(moistu re) to yield a solid product. During drying two processes occur simultan eously: (1) Transfer of energy(mostly as heat) from the surrounding environment to evaporate the surface moisture. (2) Transfer of internal moisture to the surface of the solid and its subsequent evaporation due to process (1). 干燥 : ①不同于蒸發(fā) 蒸發(fā):溶液 濃縮液 干燥:濃縮液 固體產(chǎn)品 是蒸發(fā)的后序操作。 ⑤功能性粉體制備 第一次 干燥器 冷空氣 加熱器 風(fēng)機(jī) 濕物料 干物料 干物料 冷凝水 水蒸氣 排空 。 ( Purpose of drying) ①便于運(yùn)輸,減少運(yùn)費(fèi): 如:木材含水: 70~20