桨叶结构参数对双行星搅拌混合过程的模拟影响  

Simulated influence of paddle structure parameters on mixing process of double planetary stirring

作　　者：姚雪亮 陆怡[1] 汤德利 YAO Xueliang;LU Yi;TANG Deli(School of Mechanical and Rail Transit,Changzhou University,Changzhou 213164,Jiangsu Province,China)

机构地区：[1]常州大学机械与轨道交通学院,江苏常州213164

出　　处：《化学工程》2024年第7期57-63,共7页Chemical Engineering(China)

基　　金：江苏省研究生科研实践项目(KYCX23_3205)。

摘　　要：为探究双行星搅拌机桨叶结构参数对锂电池浆料混合过程的影响,以3 L锂离子电池浆料双行星搅拌机为研究对象,采用standard k-ε模型,通过动网格法开展结构参数对搅拌过程中混合特性影响的数值模拟。结果表明:桨叶的结构参数对循环性能、剪切性能和功率特性均有影响,随着桨叶螺旋角的增大,双行星搅拌机的轴向循环能力提高,径向循环能力降低,且增大螺旋角与减小间隙会增强搅拌机的剪切性能同时增大功耗;在3个混合性能评价指标中,剪切性能受影响最显著,结构参数对剪切特性影响的主次顺序为桨叶螺旋角>桨叶间隙。通过正交试验分析,最优组合为桨叶螺旋角50°、桨叶间隙6 mm。A 3 L dual planetary mixer for lithium-ion battery slurry was investigated,focusing on how blade structural parameters like helical angle and gap size impact mixing performance.The k-εmodel and dynamic mesh simulations were employed.It finds that these parameters significantly influence the mixer′s cyclic,shearing,and power characteristics.An increase in the helical angle improves axial circulation but decreases radial circulation,while a smaller gap boosts shearing performance and power consumption.Among the three mixing performance evaluation indicators,shearing performance is the most significantly affected,with the influence of the structural parameters on shearing characteristics in the order of blade helical angle>blade gap.Through orthogonal test analysis,the optimal combination is a blade helical angle of 50°and a blade gap of 6 mm.

关 键 词：双行星搅拌机 混合过程 数值模拟 螺旋角 桨叶间隙 

分 类 号：TH128[机械工程—机械设计及理论]