析因设计优化叶丝干燥加工参数
Application of factorial design to optimize parameter of cut tobacco drying
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摘要: 采用析因设计方法,探讨了管板式环形烘丝机各工艺参数对烘后烟丝质量指标的影响.研究结果表明,管板式环形烘丝机干燥过程各工艺参数对烘后烟丝主要质量指标的影响程度各不相同:含水率标偏主要受到热风-排潮风门开度的影响,温度标偏主要受到热风温度及热风-排潮风门开度的影响,填充值主要受到筒壁温度的影响,结构主要受到HT蒸汽压力的影响.可以选取筒壁温度、热风温度、HT蒸汽压力作为优化因素,根据不同产品特点设定其范围;正常生产过程中建议将热风-排潮风门开度作为出口烟丝水分的控制参数,用以提高烟丝水分的稳定性.Abstract: Using factorial design,the effect of annular cylinder dryer process parameter on the quality inde-xes of cut tobacco was investigated.The results showed that process parameters of cut tobacco drying have different effects on quality indexes of cut tobacco.Standard deviation of moisture mainly affected by hot-moisture exhaust opening;standard deviation of temperature mainly affected by hot air temperature and hot air moisture exhaust opening;fill value mainly affected by cylinder wall temperature;structure mainly affected by HT steam pressure.Cylinder wall temperature,hot air temperature,HT steam pressure can be selected optimization factors according to different product features to set range.The hot air moisture exhaust opening is suggested as cut tobacco moisture control parameters to be used to control the stability of cut tobacco moisture in the normal production process.
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