| 顾宗幸， 李浙昆， 蔡培良， 王胜枝， 郑新虎.梗签悬浮分离腔体内颗粒相运动的数值模拟研究[J].轻工机械,2019,37(3):91-95 |
| 梗签悬浮分离腔体内颗粒相运动的数值模拟研究 |
| Numerical Simulation of Particle Phase Movement in Suspension Separation Cavity |
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| DOI：10.3969/j.issn.1005 2895.2019.03.019 |
| 中文关键词: 卷烟机械 悬浮分离腔 颗粒 离散相模型 Euler Lagrange多相流法 分离效率 FLUENT软件 |
| 英文关键词:cigarette machinery suspension separation chamber granule discrete phase model Euler Lagrange multiphase flow method separation
efficiency FLUENT software |
| 基金项目:云南中烟工业有限责任公司科技项目：真空、悬浮、螺旋和风分系统的研究与开发（2017GY05）。 |
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| 中文摘要: |
| 为了进一步降低烟梗中的含丝率，课题组根据烟丝和烟梗的密度不同，设计了悬浮分离腔体结构。首先利用流体力学中的
相关公式求解出通入悬浮分离腔体内的气压范围；再利用FLUENT软件对腔体内部的气流速度及轨迹进行模拟仿真，对比得到0.22 MPa下的负压可以达到相对理想
的分离效果；最后采用离散相模型和Euler Lagrange多相流求解的方法，在FLUENT软件中对悬浮分离腔体内烟梗的颗粒相运动进行数值模拟仿真，得到烟丝颗粒
与烟梗颗粒在腔体中的捕捉率。分离后的烟梗中的含丝率由原先的10%~20%降低到3.85%~8.53%，进一步提高了烟丝利用率。 |
| 英文摘要: |
| In order to further reduce the silk content in tobacco stem，the suspension separation chamber structure was designed according to the different
density of tobacco and tobacco stem. Firstly，relevant formulas in fluid mechanics were used to solve the air pressure range into the suspension separation cavity，then FLUENT software
was used to simulate the air flow velocity and trajectory in the cavity，and the relative ideal separation effect was obtained when the negative pressure of air pressure was at 0.22 MPa after
comparison; finally，the discrete phase model and the Euler Lagrange multiphase flow method were used to simulate the particle phase motion of the stem suspension chamber in
FLUENT software，and the capture rate of tobacco particles and stem particles in the cavity were obtained. The silk content of separated tobacco stems decreases from 10%~20% to
3.85%~8.53%，which further improves the utilization of tobacco. |
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