基于耦合仿真技术的摆式磨机进气风道优化设计  

Optimal Design of Intake Air Duct in Pendulum Mill Based on Coupled Simulation Technology

作　　者：孟声龙 姚嘉 石港威 卢伟 卿树跃 MENG Shenglong;YAO Jia;SHI Gangwei;LU Wei;QING Shuyue(College of Mechanical and Electrical Engineering,Guilin University of Electronic Technology,Guilin,Guangxi 541004,China;Guangxi Key Laboratory of Manufacturing System and Advanced Manufacturing Technology,Guilin,Guangxi 541004,China;Guilin Zhuojie Machinery Technology Co.,Ltd.,Guilin,Guangxi 541004,China)

机构地区：[1]桂林电子科技大学机电工程学院,广西桂林市541004 [2]广西制造系统与先进制造技术重点实验室,广西桂林市541004 [3]桂林卓杰机械科技有限公司,广西桂林市541004

出　　处：《矿业研究与开发》2025年第4期212-219,共8页Mining Research and Development

基　　金：广西重点研发计划项目(桂科AB23075080);广西制造系统与先进制造技术重点实验室(主任基金)项目(22-35-4-S007);2021年广西研究生联合培养基地项目(桂学位[2021]6号)。

摘　　要：为了解决摆式磨机存在的能耗高、风道积料和局部磨损等问题,对现有进气风道(蜗壳和风道叶片)结构进行了分析。基于流体动力学与多相流及离散元耦合仿真技术,对摆式磨机的内部风场与颗粒场进行了数值模拟。开展了蜗壳线型、风道叶片角度和叶片数量的响应面仿真试验。结果表明,优化蜗壳线型有利于降低压损和设备能耗,合理选择叶片角度和叶片数量有利于降低风道中的速度风流不均匀系数,进而调控流场。基于压损和不均匀系数的多目标优化,确定了风道结构的最优方案为:采用蜗壳2,叶片数量18片,叶片角度55°。优化方案的成品颗粒收集效率高达95.3%,比企业原方案提高13.5%。仿真结果与现场试验数据较一致,可以为摆式磨机的结构优化设计提供指导。In order to solve the problems of high energy consumption,material accumulation in the air duct,and local wear in the swing mill,an analysis was conducted on the existing structures of the intake air duct,including volute and air duct blades.Based on fluid dynamics,multiphase flow,and discrete element coupling simulation technology,numerical simulations were conducted on the internal wind and particle fields of a pendulum mill.Response surface simulation tests were conducted on the volute shape,the blades angle of air duct,and the blades number of air duct.The results show that optimizing the volute shape is beneficial for reducing pressure loss and equipment energy consumption.Reasonable selection of blade angle and number is beneficial for reducing the uneven coefficient of air flow velocity in the air duct and regulating the flow field.Based on multi-objective optimization of pressure loss and non-uniformity coefficient,the optimal solution for the air duct structure was determined as volute shape of 2,blades numbers of 18,and blade angle of 55°.The collection efficiency of finished particles in the optimized scheme is as high as 95.3%,which is 13.5%higher than that of the original scheme.The simulation results are consistent with the field test data,which can provide a guidance for the structural optimization design of the pendulum mill.

关 键 词：摆式磨机 进气风道 耦合仿真 响应面试验 

分 类 号：TD453[矿业工程—矿山机电]