1, the iron ore after selecting job processing, its main component is enriched in the ore concentrate, some after comprehensive treatment, secondary composition of the ore or other metal can also be recovered. So the material for the remainder of the products contain ingredients is very low, this part of the product is called tailings. It should be noted in the tailings still contains a lot of useful material of iron.

2, design of a scale of 6 million tons a year (6 million T/a) of the concentrator, the original ore grade is 30%, with the grade of concentrate was 66%, the annual production of 2.2 million tons of iron ore concentrate, tailings quantity is 3.8 million tons, the iron content is about 380000 tons. To make full use of national resources are more useful in developing recycling tailings iron disc magnetic separator, recycling TieXing items can reach 35%, because it is the period of tailings, the grain size in coarse grinding, after fine grinding in weak magnetic separation, the least qualified iron concentrate can be obtained about 80000 tons, calculated at the lowest price 150 yuan/ton, but production value 12 million yuan, a reasonably rate can reach 40%, the profit of 4.8 million yuan.

3, the equipment has high recovery efficiency, small volume, easy to decorate, large quantity, the characteristics of the economic benefit is remarkable. The equipment is specially set for abandoned tailings reelection, waste, extraction concentration, reduce the pollution of the environment. The device can be used for the direct recovery of iron concentrate from tailings of magnetic separation plants; From steel mill wastewater recycling iron powder, choose iron concentrate from tailings for many years the accumulation of; Separation from the inland river or beach placer iron ore; For separating iron oxide and other weak magnetic iron ore.