基于优良操作的打叶复烤过程含水率稳定管控研究

Study on Stable Control Method of Moisture Content in the Process of Threshing and Redrying Based on Excellent Operation

新形势下,卷烟企业对打叶复烤的加工要求越来越高,为了进一步提高打叶复烤过程物料含水率的稳定性,选择热风润叶和叶片复烤两大工序关键参数指标3 a的历史数据,按照卷烟企业成品片烟含水率评价标准筛选过程优良操作数据,统计分析参数指标的历史运行区间范围,参照相关标准要求,确定了热风润叶和叶片复烤过程参数指标的管控范围。生产应用表明,打叶复烤过程和成品片烟含水率的稳定性得到明显提高,含水率平均值与标准要求的偏离较小,而且复烤后含水率的标准偏差均低于0.33%。

In view of the extensive management and control in the process of tobacco leaves threshing and redrying,cigarette enterprises have higher and higher requirements for process stability.In order to further improve the stability of moisture content of tobacco in the process of threshing and redrying,the three-year historical data of tobacco moistening and redrying were selected,and the excellent operation data of the process were screened according to the evaluation standard of moisture content of finished cigarettes for cigarette enterprises.With reference to the requirements of relevant standards,statistical analysis of the historical operation range of the parameters was made to determine the control range of the parameters in the process of leaves hot air moistening and leaves redrying.The production application shows that the stability of moisture content in the process of threshing and redrying is improved obviously,the deviation between the average moisture content and the standard requirement is small,and the standard deviation of moisture content after redrying is less than 0.33%.