基于多目标控制策略的直线振动筛参数优化设计  

Optimization design of parameters for mining linear vibrating screen based on multi-objective control strategy

作　　者：郭昆明 GUO Kunming(State Key Laboratory of Coal Mine Disaster Prevention and Control,Chongqing 400039,China;CCTEG Chongqing Research Institute,Chongqing 400039,China)

机构地区：[1]煤矿灾害防控全国重点实验室,重庆400039 [2]中煤科工集团重庆研究院有限公司,重庆400039

出　　处：《矿山机械》2025年第2期43-48,共6页Mining & Processing Equipment

摘　　要：针对直线振动筛设计因素单一,筛分率提升不佳等问题,提出一种基于多目标控制策略的参数优化设计方法。建立了物料筛分过程的模拟系统,通过数值模拟计算,对直线振动筛面上颗粒群的动态运动及透筛过程进行研究;分析了各振动参数对筛面颗粒群的平均运动速度及透筛率的影响规律。结果表明,振动参数对颗粒的运动状态与筛分效率影响显著,不同的振动幅度和频率组合可改变颗粒在筛面上的分布与运动模式,影响透筛率和筛分效率。在振幅为15 mm,振频为30 Hz,入口速度为1 m/s,振动方向角为25°等多参数耦合下,振动筛筛分效率较佳,优化后固相含量的处理能力提高了62.5%,钻孔液的损耗降幅达到46.6%,筛分效率提升了7.3%。Aiming at the problems of single design factor and poor improvement of the screening rate of the linear vibrating screen,a parameter optimization design method based on multi-objective control strategy was proposed.Then,the simulation system of material screening process was established.Through the numerical simulation,the dynamic motion and the screening process of the particle group on the surface of the linear vibrating screen were studied.In addition,the influence of vibration parameters on the average velocity and the penetration rate of the particle group on the screen surface were analyzed.The results showed that the vibration parameters had a significant effect on the motion state and the screening efficiency of the particle.Different combinations of vibration amplitude and frequency could change the distribution and motion mode of the particles on the screen surface,and affect the screening rate and the screening efficiency.Under the multi-parameter coupling of amplitude of 15 mm,vibration frequency of 30 Hz,inlet velocity of 1 m/s and vibrating direction angle of 25°,the screening efficiency of the vibrating screen was better.After the optimization,the processing capacity of the solid-phase content was increased by 62.5%,the loss of the drilling fluid was reduced by 46.6%,and the screening efficiency was increased by 7.3%.

关 键 词：多目标控制策略 直线振动筛 仿真分析 参数优化 

分 类 号：TD452[矿业工程—矿山机电]