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磁流体作为七十年代的一种新技术,并在选矿中得以广泛的应用,主要依靠在能使磁力HgradH按一定规律变化的非均匀场中,磁流体的视密度亦按一定的规律分布,达到使矿粒在磁流体中按比重分层的目的。磁极形状是决定工作间隙中磁场强度和磁场梯度的关键。因此,首先必须根据对磁力性质的不同要求,选择合适的磁极形状。本文并不谋求对各种磁极形状的具体设计和详细探讨,仅从磁势拉普拉斯方程出发,对磁流体静选中常用的几种磁极形状进行定性的分析与比较。尝试引入势函数来讨论矿粒在磁流体中的平衡问题。
As a new technology in the seventies and widely used in mineral processing, the magnetic fluid mainly depends on the non-uniform field that can make the magnetic HgradH change according to a certain rule. The apparent density of the magnetic fluid is also distributed according to a certain rule, To achieve the mineral particles in the magnetic fluid according to the proportion of the purpose of stratification. Pole shape is the key to determining the magnetic field strength and magnetic field gradient in the working gap. Therefore, the first must be based on the magnetic properties of the different requirements, select the appropriate shape of the pole. This paper does not seek specific design and detailed discussion of all kinds of magnetic pole shapes. Based on the Laplace Lagrange equation, several commonly used magnetic pole shapes in magnetic fluid static analysis are qualitatively analyzed and compared. Attempt to introduce the potential function to discuss the mineral particles in the magnetic fluid balance problem.