Numerical Simulation For The Process Of Typical Magnetic Separation

Magnetic separation method occupies an important position in the traditionalprocessing industry, which is widely used in the separation of black, non-ferrous andrare metal. Now, the application of magnetic separation technology is getting wider andwider. It is very important for industry application to make clear the effects on particlemovement by magnetic force from the level of the particles using numerical simulationsoftware PFC2D.Viewing the magnetic particle as discrete systems, the dynamical model ofplane-solo pointed teeth magnetic pole and single high gradient magnetic field areestablished at the beginning of this thesis with the consideration of the magnetic forceand gravity, which is the theoretical basis for further calculations and experiments. Then,with the help of the PFC2D software, numerical simulation for process of the particlemagnetic separation in magnetic field of plane-solo pointed teeth magnetic pole is set upregarding magnetic field strength, spikes angle, polar distance and other factors on theefficiency of trajectory path of particle. Finally, the acceptability, reliability andaccuracy of the numerical simulations proposed in this thesis are proved by acomparison between the simulation results and the previous theories. The results showthat: The magnetic field strength and specificsusceptibility of magnetic minerals areproportional to magnetic capture effect. The smaller the polar distances, the morebeneficial to the particle capture with particle in1/2of the polar distance. Magneticforce of particle is maximum while spikes angle is60°. At last, with the help of thePFC2D software, DEM numerical simulation for process of the particle magneticseparation in magnetic field of single high gradient magnetic field is set up. Verifing thesymmetry of magnetic field and repulsion area and gravity area with specific initialconditions to ensure the validity of the model. And a simple discussion on particlemovement with a specific cases starting position, flow speed and magnetic fieldintensity of particle.