Magnetic separator is the amount of processing for recycling tailings

For iron ore tailings , the first step is to use a slow pulsating high-gradient magnetic separator to check the rough concentrates. The slurry is pumped through the demagnetizer to the high-frequency fine screen, and the concentrated magnetic separation is applied to the energy-saving ball mill. The ball mill discharges the minerals. The buffer tank is sieved and then subjected to magnetic separation and then fed into the secondary fine grinding screen. The sieve is concentrated and fed to the secondary-stage mill. The magnetic separation under the screen enters the reverse flotation operation to remove silicon, and the iron grade of 67.2% can be obtained. Fine powder.  

Through practice, it has been proved that the annual treatment of 2 million tons of tailings by the magnetic separator recycling tailings can extract 66.7% of iron fine powder and nearly 200,000 tons per year, resulting in the inability to select another 1.8 million tons of tailings , most of which are tails. After deep processing, the mine is used to fill underground mining areas, replace 2 million cubic meters of river sand, and save 50 million yuan of sand and river resources . The tailings water is used for production after deep processing.

The use of magnetic separators to recover iron ore tailings for iron tailings with a grade of more than 10% can reduce the iron grade in the tailings to about 5% . Reducing the waste of iron resources in tailings, saving ore resources, and reducing tailings deposits have obvious economic benefits. Taking an annual treatment of 2 million tons of tailings as an example, a direct economic benefit of 46 million yuan will be generated each year , which has strong promotion value.