易虹宇 黄治 曾天一

摘要[目的]研究KLD-2烘丝机不同干燥方式对烘后叶丝物理特性及内在质量的影响。[方法]分别对KLD-2烘丝机前后筒壁温度的不同组合方式进行了对比试验，并对烘后叶丝的物理指标及感官质量进行了检测。[结果]前后段不同温度设置对干燥后叶丝的结构指标影响不明显。分段筒壁温度前高后低的情况下，试验温度范围内随着前段温度的升高，供试样品香气量及香气的透发性呈上升趋势。但前后端温差越大，刺激性及余味则受到不同程度的负面影响。分段筒壁温度前低后高的情况下，试验温度范围内供试样品随着后段筒壁温度的增加香气的透发性呈下降趋势，刺激性有所改善。[结论]试验范围内不同筒壁温度控制模式，对于干燥后卷烟叶丝的结构指标及填充值影响不明显。

关键词 分段式烘丝机；干燥方式；筒壁温度；质量

中图分类号 TS452+.3 文献标识码 A 文章编号 0517-6611（2017）02-0121-01

Abstract[Objective] To study the effect of different drying methods of KLD2 drying machine on the physical properties and inherent quality of dried tobacco.[Method] Two different combinations of the wall temperature of the KLD2 drying machine were compared with each other， and the physical indicators and sensory quality of the dried tobacco were tested.[Result] The results showed that the influence of different temperature settings on the structure of dried tobacco was not obvious；in the case of segmented tube wall temperature is former high to low， with temperature increasing at front end，the aroma content and aroma permeability of the test samples were increased. But the greater the temperature difference between the front and rear， irritation and aftertaste were negatively affected in varying degrees；In the case of segmented tube wall temperature is former low to high，with temperature increasing at back end， the aroma permeability decreased and irritation improved.[Conclusion] Different temperature control modes of tube wall have no obvious influence on structure index and filling value of dried tobacco.

Key words Segmented drying machine；Drying method；Temperature of tube wall；Quality

煙叶制丝过程中，原料经过加温、加湿、干燥等工序，温度和湿度不断地变化，叶丝内部的化学成分也随之变化[1]。每个工序工艺参数的变化都会对卷烟的化学成分和感官质量产生一定的影响[2]。KLD-2烘丝机作为一种新型的叶丝干燥设备，与传统薄板烘丝机相比，KLD-2型烘丝机的薄板从水平方向平均分为独立的2段，可设置不同的干燥温度，参数配置更加灵活，KLD-2外形结构见图1。笔者对KLD-2烘丝机不同筒壁温度设定模式下烘后叶丝质量指标进行分析对比，为该烘丝机的进一步优化和根据不同产品特点选取不同的筒壁温度控制方式提供技术支撑。……