金银花颗粒在旋风分离器中的流场数值模拟分析  

Numerical simulation of Lonicerae Japonicae Flos particles in cyclone separator

作　　者：苗坤宏 崔彭帝 薛启隆 于洋 李正 MIAO Kun-hong;CUI Peng-di;XUE Qi-long;YU Yang;LI Zheng(College of Pharmaceutical Engineering of Traditional Chinese Medicine,Tianjin University of Traditional Chinese Medicine,Tianjin 301617,China;State Key Laboratory of Component traditional Chinese Medicine,Tianjin 301617,China;Haihe Laboratory of Modern Chinese Medicine,Tianjin 301617,China)

机构地区：[1]天津中医药大学中药制药工程学院,天津301617 [2]省部共建组分中药国家重点实验室,天津301617 [3]现代中医药海河实验室,天津301617

出　　处：《中草药》2023年第4期1087-1097,共11页Chinese Traditional and Herbal Drugs

基　　金：国家自然科学基金面上项目(82074276);国家中医药管理局创新团队与人才培养计划(ZYYCXTD-D-202002);国家“重大新药创制”科技重大专项(2018ZX09201011);天津中医药大学研究生科研创新项目(YJSKC-20201025)。

摘　　要：目的 针对金银花颗粒在旋风分离器中的运动行为过程进行研究,考察不同设计参数和操作工艺条件下,颗粒在设备内部的运动过程变化规律。方法 基于仿真模拟技术,考察受不同设备长径比、入口进气雷诺数、颗粒质量流量3个因素影响的金银花颗粒在分离器内的运动规律,并以金银花颗粒得粉率为验证指标参数,对模型可靠性进行了分析。结果 通过仿真模拟得到了各个不同工艺条件下的金银花颗粒运动轨迹分布,计算出了对应设备的颗粒得粉率。提出金银花颗粒分离的最佳工艺建议为设备长径比5∶1,入口进气雷诺数3.23×10^(4),颗粒质量流量80.1 mg/s,得到的金银花颗粒得粉率为96.30%。结论 为旋风分离器内金银花颗粒的有关研究提供指导,同时改善旋风分离器在控制和设计上的不足。Objective To investigate the movement behavior of Lonicerae Japonicae Flos particles(LJFP) in the cyclone separator and the changing laws of the movement process of particles in the equipment under different design parameters and operating conditions. Methods Based on the simulation technology, the movement laws of LJFP in the separator affected by the lengthdiameter ratio of different equipments, the Reynolds number of inlet air and the particle mass flow rate were investigated. The reliability of the model was analyzed with the powder yield of LJFP as the validation index parameter. Results The particle trajectory distribution under different process conditions through simulation was obtained, and the corresponding powder yield of particles wascalculated. The optimal process recommendations for the separation of LJFP were as follows: The length-diameter ratio of the equipment was 5:1, the Reynolds number of the inlet air was 3.23 × 10^(4), and the mass flow rate of the particles was 80.1 mg/s.The powder yield of particles was 96.30%. Conclusion This study can provide guidance for the research on LJFP in cyclones separators and improve the deficiencies in the control and design of cyclones separators.

关 键 词：旋风分离器 金银花颗粒 仿真模拟技术 运动规律 颗粒得粉率 

分 类 号：R283.6[医药卫生—中药学]