选矿数值试验研究发展现状及趋势

目前，选矿试验研究仍停留在实验室试验的层面上，完成一项研究需要耗费大量的人力、物力和时间，而计算机数值模拟具有不需实验设备、不需重复试验、可避免干扰因素对试验的影响等突出优点，如今已逐渐成为科学研究不可或缺的有效手段。在矿物加工研究领域，计算流体力学（CFD）方法、离散元法（DEM）、CFD-DEM耦合等数值模拟方法被越来越多地应用于分选空间中单相流和多相流的数值模拟之中。为给选矿工作者进行选矿数值试验研究提供参考，综述了选矿试验研究及其数值模拟研究的发展现状，分析了探索选矿数值试验研究的必要性，并分别对分选空间中的流场特征数值模拟、磁场特征数值模拟、颗粒在分选空间的运动行为数值模拟等关键问题的研究现状进行了详述，在此基础上提出了选矿数值试验的重点研究内容和发展方向。

The Development Situation and Trend of Numerical Experimental Research on Beneficiation

Presently the experimental research of beneficiation is still carried out in laboratory,which will always cost many labors,materials and time.The computational numerical simulation is carried out without experimental equipment and repeated trials and can avoid the disturbance influence,so as to becomes gradually an effect approach to scientific research by its advantage above mentioned.In the field of mineral processing,many numerical simulation methods including Computational Fluid Dynamics,Discrete Element Method and the coupled method of CFD-DEM,are utilized broadly in the simulation of single phase flow and multiphase flow in separation field.Based on the development situation of experimental and numerical simulation of beneficiation research,the necessity of exploring numerical experimental research on beneficiation was analyzed in order to provide references for researchers working on numerical expeniment,furthermore the significant problems were discussed in details,including numerical simulations of flow field characteristics,magnetic field characteristics and particles motion behaviors in separation field.Finally the emphases and directions of numerical research of beneficiation experiment were brought forward.