包装与食品机械2024，Vol.42Issue(6)：25-33,9.DOI:10.3969/j.issn.1005-1295.2024.06.004
烟草加料中喷嘴工艺参数对料液雾化效果的影响
The effects of nozzle process parameters on liquid atomization in the tobacco leaf casing process
摘要
Abstract
To improve the issue of leaf adhesion in the tobacco blending process,the spray effect was optimized through CFD numerical simulation to enhance the absorption of the liquid by the tobacco leaves and reduce adhesion.The effects of initial droplet velocity,incident horizontal angle,nozzle half-angle,and other factors on the atomization performance of a liquid nozzle were investigated through orthogonal experiments.The results indicate that the initial droplet velocity has the most significant impact on atomization performance,followed by the incident horizontal angle.Single-factor experiments were conducted on these two factors and the viscosity of the liquid,and it was found that when the initial droplet velocity increases from 100 m/s to 400 m/s,the Sauter Mean Diameter(SMD)of the droplets in the atomization field decreases from 82.75 μm to 14.37 μm,with a noticeable improvement in atomization directionality and uniformity.Adjusting the incident horizontal angle from 20° to 35° shows that at a horizontal angle of 25°,the atomization area is larger and the SMD is finer.The response surface analysis indicates that the interaction between the initial velocity of the droplet and the horizontal angle of the nozzle is not significant.Under high-speed airflow,liquid viscosity has a greater influence on smaller droplets than larger ones in the atomization field.Finally,experimental validation shows that the improved nozzle design significantly reduces the weight of adhered tobacco leaves in the roller,bringing it down to less than 0.31 kg per batch.The research findings can effectively reduce the amount of adhesive used in the tobacco blending process and provide theoretical support for optimizing the atomization effect.关键词
滚筒加料机/雾化/数值模拟/粘料Key words
roller feeder/atomization/numerical simulation/material adhesion分类
轻工纺织引用本文复制引用
黄炎伊,李跃贵,黄津焕,魏海锋,李明林..烟草加料中喷嘴工艺参数对料液雾化效果的影响[J].包装与食品机械,2024,42(6):25-33,9.基金项目
国家自然科学基金面上项目(522750995) （522750995）
福建中烟工业有限责任公司技改项目(FJZYKJJH2022YB016) （FJZYKJJH2022YB016）
