2023年8月第54卷第8期农报业机械学doi:10.6041/j.issn.1000-1298.2023.08.013金银花静电除杂装置设计与试验王凤花1林玉红赖庆辉王永杰1田保宁1苏苏微(1.昆明理工大学现代农业工程学院,昆明650500;2.云南师范大学能源与环境科学学院,昆明650500)摘要:针对金银花除杂过程中编织袋丝去除效果不佳的问题,本文基于静电分离技术,设计了一种金银花静电除杂装置。通过理论分析,推导了静电场中金银花和编织袋丝产生轨迹分离的临界条件,验证了静电分离技术用于金银花除杂具有一定的可行性。基于单因素试验和COMSOL电场仿真,进一步探究了各影响因素对除杂性能的影响,确定了静电极形状为圆弧形、静电极角度α为45°。以高压静电发生器的输出电压U、静电极与辊筒的间距L和辊筒转速N为试验因素,开展Box-Behnken试验,分别建立了除杂率和误除率的二次回归方程。采用响应面分析法探明了各试验因素对试验指标的影响规律。通过参数寻优,确定了该装置的最优工作参数为U=11.9kV、N=28r/min以及L=60mm。台架试验结果显示,除杂率和误除率分别为94.47%和0.89%,满足金银花除杂要求。关键词:金银花;静电除杂;电场;COMSOL中图分类号:S226.5文献标识码:A文章编号:1000-1298(2023)08-0143-12OSID:DesignandExperimentofElectrostaticImpurityRemovalDeviceforHoneysuckleWANGFenghua'LINYuhongLAIQinghui?WANGYongjie'TIANBaoningSUWeil(1.CollegeofModernAgriculturalEngineering,KunmingUniversityofScienceandTechnology,Kunming650500,China2.SchoolofEnergyandEnvironmentScience,YunnanNormalUniversity,Kunming650500,China)Abstract:Basedonelectrostaticseparationtechnology,anelectrostaticremovaldeviceforhoneysucklewasdesignedtosolvetheproblemofpoorremovalofwovenbagfilamentsintheremovalprocess.Throughtheoreticalanalysis,thecriticalconditionsforthetrajectoryseparationofhoneysuckleandwovenbagfilamentsintheelectrostaticfieldwerededuced,andthefeasibilityofelectrostaticseparationtechnologyforhoneysuckleimpurityremovalwasverified.Single-factorexperimentsandCOMSOLsimulationswereusedtoinvestigatetheeffectsofelectrostaticelectrodeshape,outputvoltageUofthehighvoltageelectrostaticgenerator,electrostaticelectrodeangleα,thedistanceLbetweentheelectrodeandtheroller,androllerspeedNontheremovalper...