What are the functions of Vertical roller mill?

With the development of social industrial production, Vertical roller mill is more and more widely used in grinding machinery industry, and gradually replaced the traditional Ball mill. The traditional Ball mill principle is that the material enters the shaft body from the hollow shaft of the Ball mill feed end. When the Ball mill cylinder rotates, the grinding body is taken away by the cylinder attached to the liner plate because of the action of inertia, centrifugal force and friction. When the material is taken to a certain height, the grinding body is taken away because of its cost. The body is thrown down by gravity, and the falling grinding body smashes the material in the cylinder like a projectile.

The working principle of Vertical roller mill, which is now widely used, is quite different from that of the traditional Ball mill. Vertical roller mill drops the material discharging tube into the center of the grinding plate, and the constant speed rotating grinding plate distributes and flattens the material outward evenly by means of centrifugal force to form a certain thickness of the grinder. The slag material is simultaneously crushed and crushed by multiple rollers on the millstone. Under the continuous driving of centrifugal force, the slag material moves towards the outer edge of the mill. When the material leaving the mill meets the hot gas entering the mill through the air ring and then rises, it enters the separator through the middle shell of the mill. In this process, the slag powder material and the hot gas undergo sufficient heat exchange, and the moisture is evaporated rapidly. . The separator controls the fineness of the finished product at the exit of the roller mill, and the particles larger than the prescribed size are separated and returned to the mill tray. Material that meets the fineness requirements enters the finished product warehouse through selective classification. This principle of operation doomed Vertical roller mill to be the final winner in this no-smoke grinding war.