Abstract: Clogging magnetic medium exists in perpendicular magnetic field high gradient magnetic separator, and that the lower magnetic pole of perpendicular magnetic unit always soaked in slurry, thus easily resulting in corrosion of magnetic pole. Meanwhile, the upper magnetic pole can be worn out by flushing from feed. Therefore, SSS-Ⅱ type horizontal magnetic field high gradient magnetic separator was developed. This magnetic unit will not contact with slurry by using a special design, which solve the difficulty of magnetic unit corrosion and wear from slurry thoroughly, and overcome the problem of magnetic medium clogging by using multi-gradient magnetic medium and discharging with the aid of water-air combination. Its application in fine magnetic workshop of Midi titanium plant indicated that, titanium grade and recovery of the concentrate produced by this new equipment are significantly higher than that of the on-site perpendicular magnetic field high gradient magnetic separator under the same conditions, and keep stable work efficiency in the long run.

Key words: SSS-Ⅱ horizontal magnetic field high gradient magnetic separator, Horizontal magnetic field, Ilmenite