| 瓶装物料的冻干规律研究 |
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| 引用本文： | 陈孟林 涂伟萍. 瓶装物料的冻干规律研究[J]. 化学工业与工程, 1998, 15(4): 1-5,10 |
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| 作者姓名： | 陈孟林 涂伟萍 |
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| 作者单位： | 华南理工大学化工学院 |
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| 摘 要： | 以脱脂牛奶为物料，进行了瓶装物料的冷冻干燥试验，探索了加热温度，辐射温度与冻干室压强对冻干过程的影响规律，分析了所得冻干曲线的特征，并对冻干机理和物料温度的监测井行阐述，得到在加热温度与辐射温度相同时恒温恒压操作的最佳参数，并提出了一些强经冻干过程的措施。本研究对实验冻干生产有一定的指导作用，也为瓶装物料的二维理论模型研究提供了基础。
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| 关 键 词： | 冷冻 干燥 脱脂牛奶 牛奶 |
Study on Freeze drying Law of Materials in Vials |
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| Chen Menglin Tu Weiping Lan Renhua Yang Zuoru Chen Huanqin. Study on Freeze drying Law of Materials in Vials[J]. Chemical Industry and Engineering, 1998, 15(4): 1-5,10 |
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| Authors: | Chen Menglin Tu Weiping Lan Renhua Yang Zuoru Chen Huanqin |
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| Abstract: | The experiments of freeze drying of skim milk in vials have been carried out.We have investigated the effects of heating temperature,radiating temperature and chamber pressure on freeze drying process and analyzed the freeze drying curves obtained.Further,the mechanisms of freeze drying and the monitoring of material temperatures are expounded.If heating temperature and radiating temperature are the same,the optimal parameters are 323K and 30Pa for the operation of constant temperature and pressure.Some methods for enhancing freeze drying process are presented too.These results are available for realistic production and offer a base for research of two dimensional model of freeze drying of materials in vials. |
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| Keywords: | freeze drying skim milk materials in vials |
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