| 摘要: |
| 【目的】解决箱式烘烤在回潮环节回潮难、均匀性差等问题。【方法】设计了一种适用于烤后烟叶快速回潮的高温蒸汽回潮装置；然后以回潮装置的参数蒸汽温度、装烟密度和运转时间为试验因素，以烟叶含水率和有效吸水率为试验指标进行Box Behnken三因素三水平试验，建立多元回归方程并进行响应面分析，优化高温蒸汽回潮工艺。【结果】Box-Behnken三因素三水平试验结果表明，烟叶含水率和有效吸水率回归模型的拟合系数R2分别为0.982 5和0.995 7，回潮机的蒸汽温度、装烟密度和回潮机运转时间对烟叶含水率和有效吸水率的影响均达到极显著水平（P<0.01）；交互作用分析结果表明，回潮机蒸汽温度与回潮机运转时间对烟叶含水率有显著影响（P<0.05），回潮机蒸汽温度与装烟密度、装烟密度与回潮机运转时间均对有效吸水率有显著影响（P<0.05）。箱式烘烤高温蒸汽回潮烟叶的优化工艺参数为：蒸汽温度115.00 ℃，装烟密度90.85 kg/m3，运转时间3.47 h，在该工艺条件下烟叶含水率为17.71%，有效吸水率为89.75%，各响应指标试验值与模型优化值的相对误差均小于2%。【结论】采用高温蒸汽回潮可有效提高箱式烘烤的回潮效率。 |
| 关键词: 烟草 箱式烤房 高温蒸汽设备 回潮工艺优化 响应面分析 |
| DOI：10.13207/j.cnki.jnwafu.2025.03.014 |
| 分类号: |
| 基金项目:中国烟草总公司河南省公司资助项目“箱式烟叶烘烤技术体系优化研究”（2023410000240027）；河南中烟工业有限责任公司资助项目“河南烟叶提质增香烘烤技术的优化与推广”（2022410000340099） |
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| Design and process optimization of high-temperature steam moisture regain device for box-type curing |
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GE Weiyi1, ZHU Zhizhong2, JIANG Chenguang3, ZHAO Haobin4, WANG Yafei2, LU Xiaochong1, TI Jinsong1, YIN Guangting1,2
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1.College of Tobacco，Henan Agricultural University，Zhengzhou,Henan 450002，China;2.China Tobacco Henan Industry Co.，Ltd.，Zhengzhou,Henan 450016，China;3.Zhengzhou Branch of Henan Tobacco Company,Zhengzhou,Henan 450000,China;4.Henan Branch of China National Tobacco Corporation,Zhengzhou,Henan 450018,China
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| Abstract: |
| 【Objective】The study aimed to solve the problem of moisture regain and poor uniformity in the moisture regain process of box-type curing.【Method】A high-temperature steam moisture regain device was designed,which was suitable for fast moisture regain of cured tobacco leaf.The Box-Behnken three-factor,three level test was conducted with the steam temperature,loading density and running time of the moisture regain device as the test factors,and the moisture content and effective water absorption of the tobacco leaf as the test indexes,and a multiple regression equation was established to optimize the high-temperature steam regain technology with response surface analysis.【Result】Box-Behnken three-factor and three level test showed that the fitting coefficients of the regression models of tobacco moisture content and effective water absorption (R2) were 0.982 5 and 0.995 7 respectively,and the effects of steam temperature,loading density,and running time of the moisture regain device on moisture content and effective water absorption of the tobacco leaf reached highly significant levels （P<0.01);the interaction analysis showed that the effects of steam temperature and running time of the moisture regain device on moisture content of tobacco leaf were significant (P<0.05),and the effects of steam temperature and loading density and loading density and running time of the moisture regain device on effective water absorption were significant (P<0.05).The optimization technological parameters of box-type curing high-temperature steam moisture regain tobacco leaf were:steam temperature 115.00 ℃,loading density 90.85 kg/m3,and running time 3.47 h.Under this technology,the moisture content of tobacco leaf was 17.71%,the effective water absorption was 89.75%,and the relative error between the test value and the model optimization value of each response index was less than 2%.【Conclusion】The moisture regain efficiency of box-type curing can be effectively improved by using high-temperature steam. |
| Key words: tobacco box-type barn high-temperature steam device optimization of the moisture regain technology response surface analysis |
