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根据电磁流体力学 (MHD)的基本理论 ,建立了在采用矩形电磁线圈和工频电源的条件下电磁分离铝熔体中夹杂颗粒的体积力、颗粒运动速度等数学模型·模拟计算结果表明 ,电磁体积力越大 ,分离力越大 ,夹杂颗粒运动速度越快 ;夹杂颗粒的粒径越大 ,颗粒运动速度越快 ;粒径大于 30 μm的夹杂颗粒运动速度较快 ,容易用电磁方法分离 ,粒径小于 10 μm的夹杂颗粒运动速度较慢 ,难分离·
According to the basic theory of Electromagnetic Hydrodynamics (MHD), the mathematical model of the volume force and particle velocity of the inclusion particles in the electromagnetic separation of aluminum melt under the conditions of rectangular electromagnetic coil and commercial power supply is established. The simulation results show that the electromagnetic The larger the volume force, the greater the separation force, the faster the inclusion particles move; the larger the particle size of the inclusion particles, the faster the particles move; the faster the particles with the particle size greater than 30 μm move, the easier to separate by electromagnetic method, Inclusion of particles less than 10 μm in particle size is slow and difficult to separate