(1)Background:To address the issues of tobacco flue-cured tobacco particles clogging sieve holes during vibration screening,which affects detection accuracy and causes material mixing,(2)Method:The Computational Fluid...(1)Background:To address the issues of tobacco flue-cured tobacco particles clogging sieve holes during vibration screening,which affects detection accuracy and causes material mixing,(2)Method:The Computational Fluid Dynamics-Discrete Element Method(CFD-DEM)coupling method was employed to simulate the dynamic behavior of flexible tobacco particles during the cleaning process.By introducing a viscoelastic surface energy contact model,the influence of operational parameters on cleaning efficiency was systematically analyzed.(3)Results:Within the inlet velocity range of 12 m/s to 20 m/s,the optimal flow field structure was achieved at 16 m/s.At a vibration frequency of 50 Hz,the system reached optimal energy transfer efficiency with the most uniform particle velocity distribution.Although high-frequency vibration improves cleaning efficiency,it intensifies particle force fluctuations.(4)Conclusion:This study provides a theoretical basis for the intelligent design of tobacco flue-cured tobacco cleaning devices.展开更多
基金supports the development of self-cleaning systems for tobacco particle vibration screening screens at Baoding Cigarette Factory,Hebei Baisha Tobacco Co.,Ltd.(Project ID:HBZY-BY2024A004).
文摘(1)Background:To address the issues of tobacco flue-cured tobacco particles clogging sieve holes during vibration screening,which affects detection accuracy and causes material mixing,(2)Method:The Computational Fluid Dynamics-Discrete Element Method(CFD-DEM)coupling method was employed to simulate the dynamic behavior of flexible tobacco particles during the cleaning process.By introducing a viscoelastic surface energy contact model,the influence of operational parameters on cleaning efficiency was systematically analyzed.(3)Results:Within the inlet velocity range of 12 m/s to 20 m/s,the optimal flow field structure was achieved at 16 m/s.At a vibration frequency of 50 Hz,the system reached optimal energy transfer efficiency with the most uniform particle velocity distribution.Although high-frequency vibration improves cleaning efficiency,it intensifies particle force fluctuations.(4)Conclusion:This study provides a theoretical basis for the intelligent design of tobacco flue-cured tobacco cleaning devices.
