鼠笼式搅拌磨机性能研究及参数优化  

Performance Analysis and Parameter Optimization for Stirred Media Mills With a Rotational Rat Cage

作　　者：郝静如[1] 米洁[1] 黄小龙[1] 

机构地区：[1]北京机械工业学院机械工程系,北京100085

出　　处：《机械设计与研究》2004年第6期67-70,共4页Machine Design And Research

摘　　要：对新型鼠笼式搅拌磨机磨腔内的流体场建立了数学模型 ,用有限元流体动力分析软件对磨腔圆截面内的流体场进行计算分析 ,得到磨腔内浆液具有高速度梯度值的两个环形区域 ,该区域内磨机的功效最为显著。建立了磨介在磨腔内随浆液运动的数学模型 ,用龙格 库塔法迭代求解得到磨介的运动轨迹。通过对不同工况条件下磨介轨迹的计算分析 ,得到使磨介能在高速度梯度区保持较稳定运动的工况参数优化值。分析结果与实验结果一致。Mathematic model is established for the flow field in the grinding chamber of new stirred media mills with a rotational rat cage, and the flow field on radial section of grinding chamber is analyzed and calculated by the finite element software. The calculation result shows that two zones characterized by a high velocity gradient exist,in which the effect of comminution is the best. Mathematic model is also established for the grinding beads following with the flow of media-product-fluid imxture in the grinding chamber,and the flow trajectory of grinding beads is calculated by using the method of Runge-Kutta procedure. By calculating the trajectory of grinding beads in different working condition,the optimized parameters of working condition are obtained, with which grinding beads could move stably in the high velocity gradient zones. The results of analysis and experiment are consistent.

关 键 词：搅拌磨机 流场 参数优化 

分 类 号：TH6[机械工程—机械制造及自动化]