Abstract:In order to explore the influence of wind power on the flow field characteristics of the separation chamber and the separation performance of the magnetic separator, this paper studied the flow field characteristics of the separation chamber of the new dry permanent magnet drum magnetic separator with the help of the computational fluid dynamics software ANSYS fluent, and studied the influence of wind power on the separation performance through the whole machine test.The results show that: the wind can change the characteristics of the flow field in the separation chamber, and the pressure in the separation chamber increases from 1.22×10_⁴Pa to 2.622×10_⁴Pa with the increase of the wind speed.With the increase of wind speed, the fluid velocity in the separation chamber increased from 5.146×10_¹m/s to 1.421×10_²m/s.The radial concentration distribution in the separation chamber varied from 9.837kg/m_³ ~7.253kg/m_³ to 1.225kg/m_³~ 9.837kg/m_³.The turbulent kinetic energy in the separation chamber increased from 3.324×10_²J/kg to 8.111×10_²J/kg.With the increase of wind speed, the concentrate grade increased from 17.78% to 19.63%, the magnetic iron grade of tailings decreased from 1.09% to 0.77%, the concentrate capacity increased from 2719.41kg/h to 2869.42kg/h, and the iron ore treatment capacity increased from 28525.66kg/h to 30793.93kg/h.Therefore, the wind factor can improve the characteristics of the flow field and improve the separation performance of the magnetic separator.