摘要
从磁流体Bernoulli方程、应力张量方程和牛顿定律出发,应用楔形磁极建立竖直向上的磁浮力,构建出非磁性矿粒在磁流体静力分选中动力学模型。从理论上探讨影响磁流体静力分选效果的因素和相关参量条件,当磁场强度足够,梯度和磁流体特性较好的情况下,任何密度的非磁性矿粒均可悬浮在磁流体中,最后建立非磁性矿粒在磁流体中的沉降高度计算式,为磁流体静力分选应用提供相关理论依据。
Starting from the Bernoulli equation of magnetic fluid,the stress tensor equation and Newton＇s laws,and applying the wedge-shaped magnetic poles to set up the magnetic buoyancy of which direction is straight up,based on these tasks the mechanical model for the nonmagnetic mineral particles in magneto hydrostatic static separation（MHSS） is established.The factors that affecting separation results of magneto hydrostatic static separation and relative parameter requirements were also discussed and analyzed from theoretically in this paper.When it could meet the requirements of the magnetic field intensity being enough and the magnetic field gradient and magnetic fluid characteristics being in good condition,any nonmagnetic substances could be kept suspension state in magnetic fluid.Finally,the deposition’s height formula of non-magnetic mineral particles in the magnetic fluid was presented.These tasks may provide theoretical support for the application of MHSS.
出处
《有色金属（选矿部分）》
CAS
北大核心
2013年第4期49-51,共3页
Nonferrous Metals（Mineral Processing Section）
基金
国家自然科学基金资助项目(51165012)
关键词
磁流体
磁场梯度
力学模型
分选
magnetic fluids
magnetic field gradient
mechanical model
separation
