Mostyka Y. Development of scientific bases of kinetics of wet high-gradient magnetic separation of weakmagnetic ores

The analysis of main factors, determining objective laws of movement, catching and accumulation of weakmagnetic particles, in the working areas of wet high-gradient magnetic separators is carried out. System of differential equations describing motion of weakmagnetic particle in neighbouring of cylindrical ferromagnetic element taking into account gravitations and inertia component of forces is obtained. The equations of movement earlier published in literature are the special case of the given system of equations. On the basis of these equations mathematical model of particle movement in the working area of high-gradient magnetic separator, taking into account gravitation and inertia components of forces influence on the particle and change of hydrodynamic resistance in different points of trajectory of its movement, is developed. The model of kinetics of the VGMS process, allowing to calculate the main technological parameters of separation process and estimate their change depending on duration of separator work cycle, is developed with cyclic and continuous modes of operations. The results of theoretical and experimental investigation allowed to create a complex model allowing to analyze the process of wet high-gradient magnetic separation.