打叶复烤工序评价过程样品抽样次数的研究

On Sampling Times in Procedure of Threshing and Redrying

[目的]制定科学、合理、可操作性强的打叶复烤工序评价过程样品抽样方法。[方法]对安徽宣城地区出产的C2F烟叶进行原料、热风润叶、叶片复烤3个重点工序不同抽样次数的对比分析。[结果]研究表明,为保证抽样样品的代表性,在抽样范围一致的前提下,随着混合均匀度的提高,工序抽样次数呈现减少趋势,原料样品抽样次数不少于20次,润叶样品抽样次数不少于10次,复烤样品抽样次数不少于5次。[结论]研究可为打叶复烤工序评价、工艺参数优化、均质性评价等工作开展提供技术依据。

[ Objective ] To make scientific, reasonable and operable sampling method in threshing and redrying process. [ Method ] Different sampling times of raw material, hot wind threshing leaf and redrying of C2F from Xuancheng in Anhui Province were comparatively analyzed. [ Result ] The results showed that in order to guarantee leaf representative, sampling times indicate decreasing trend with the increasing of mixture homogeneity, raw material sampling times are less 20 times, threshing leaf sampling times are less 10, and redrying sampling times are less 5 times. [ Conclusion] The study can provide technical basis for evaluation of threshing and redrying procedure, technique parameters optimization, heterogeneity evaluation.