Comparison of vertical mill and ball mill in ore grinding

The traditional ball mill mainly relies on the impact of the medium to crush the ore. The point contact between the media is mainly based on point contact. When the impact force of the medium on the ore is too large, the crushing behavior of the ore is often dominated by penetrating crushing. dispersion. However, the purpose of grinding is not simply to improve the fineness of the product, but more importantly to dissociate the useful minerals from the associated gangue minerals to the greatest extent.

In the comparison between the vertical mill and the ball mill, the vertical mill is mainly characterized by the friction and wear between the medium and the ore, and the particles in the mill mainly present periodic movements. These movement differences produce medium-medium, medium-liner, material Relative movement with the material, through these severe frictions, the toughness of the surface of the material is lost and peeled off, making the particle surface smooth and rich in cracks. Friction and wear are more conducive to the dissociation of mineral monomers. At the same time, under the action of violent friction of the medium on the ore, the gangue wrapped in the outer layer of useful minerals will be gradually peeled off, and the fracture of minerals along the interface will be enhanced to facilitate the exposure of minerals, further strengthening the adhesion of flotation agents on the surface of minerals, and then It can improve the recovery rate and grade of concentrate.

After comparing the vertical mill and the ball mill, the grinding effect of the vertical mill is better than that of the ball mill, so choosing a high-quality vertical mill will make the ore grinding production more effective. In addition, according to different materials, fineness requirements, output and other requirements, vertical mills with different configurations can be selected, and we can help you choose the most suitable grinding equipment.

Compared with the ball mill, the vertical mill has 40-50% lower energy consumption and occupies only 50% of the floor area of the ball mill. It has the advantages of high efficiency, energy saving and environmental protection, convenient equipment maintenance, and low operating costs. It can grind cement raw meal, clinker, lime powder for power plant desulfurization, slag, steel slag, manganese ore, gypsum, coal and other materials. It is widely used and the finished product is reliable.