Domestic beneficiation equipment has good industrial application in recent years, the main hematite process has three, the most common is continuous grinding, thickness separation, gravity separation-magnetic separation-anionic reverse flotation process, its application and process characteristics are:

1, the use of stage grinding process. Because the process process adopts the stage grinding, stage separation process, so that the process process has a relatively economical cost of beneficiation.

2. The selection is highly targeted. The mineral dissociation is random in the grinding process, and this process makes the mineral particles with different grinding sizes have relay conditions, which is one of the important bases for the strong vitality of the thickness and fine separation process.

3. Narrow grade selection is realized. In the process of mineral separation, the degree of mineral selection is related to the characteristics of the mineral itself and the specific surface area size of mineral particles, which is more prominent in the process of flotation.

4. The effect of fine grade sorting has been unprecedentedly advanced. Before the application of stage grinding, thickness separation, gravity separation-magnetic separation-anionic reverse flotation process, the magnetic separation-acid positive flotation process was used in the stage grinding process of hematite beneficiation, which had very low dressing efficiency and affected the improvement of the technical index of stage grinding process.