Ultrafine Grinding Mill

Structure of Ultrafine Grinding Mill:

The Ultrafine Grinding Mill has the folllowing components: crusher, elevator, hopper, feeder, classifier, mill, collector, blower and electric control cabinet. And delivery and installation of the whole micro powder grinding mill system is simple and easy to be completed. As the Ultrafine Grinding Mill has been tested in the factory, so the micro powder grinding mill can run as soon as the installation is completely.

The motor drives the mill shaft and roller table go around by the V-belt. The roller will rotate and revolve against the ring, which will make the material into powder from the top level to the bottom level. Classifier includes motor, coupling, shaft, vane wheel and housing. The motor controls the classifier wheel rotation speed. The faster the rotation speed, the finer the powder and vice versa.

Working Principle of Ultrafine Grinding Mill:

Elevator conveys the crushed material (usually less than 10mm) to the feeding hopper, which will be feed into the grinding house by the belt conveyor or screw conveyor. In the grinding house, there are three or four layers of roller and rings to grinding the material step by step. The grinding rollers on the rotary table rotate with the help of central shaft. And there is a flexible gap between roller and ring. When the ultrafine grinding mill works, the rollers will move towards the ring because of centrifugal force. The rollers also rotate around the pin by themselves. The material will be ground between the roller and ring. The grinding and crushing comes from the centrifugal force of the grinding roller. And the ring hardness, precision and wear-resistance ability are also important to the grinding force. So the material goes through the gap between the rings and rollers in 3 or 4 layers one by one. The material can be ground into ultrafine powder with higher sieving rate.

The ultrafine powder with required fineness go through the classifier into the pulse-jet collector, and the coarse powder will be fallen down into the grinding chamber to be reground. And the temperature in the grinding house can also be controlled by our special system to improve the whiteness of the powder in the ultrafine grinding mill.

Special Features of Ultrafine Grinding Mill:

1. Perfect contact between rollers and ring: The arc or curved surface increases their effective working surface and improves the crushing efficiency. The rollers and rings contact surface and shapes should be consistent and tightly fit, which is good to the production of fine powder.

2. Improved hardness of rollers and rings: this not only guarantees longer working life, but also the powder is not easy to be contaminated.

3. Rotation speed of central shaft can be adjusted according to customer’s requirement.

4. Pulse-jet Collector: 99.99% of the ultrafine powder can be collected, which is also environment-friendly.

5.  Constant temperature control system is adopted and the whole design is also improved, so various additives can be put into the mill to improved the application range of powder.
6. High quality casting technology to prolonger the working life of roller and ring.

  Technical Data of Ultrafine Grinding Mill: