By optimizing the stress intensity the energy utilization can be increased and the specific energy required for obtaining certain product fineness can be lowered. The grinding efficiency can be achieved by increasing the mass of the grinding media charge, vibration diameter and the drive speed.
The number of stresses increased by the drive speed which leads to increase in intensity and grinding of very fine particles is promoted by improved dispersion. The stress intensities dependent on the flow properties of the material to be ground, type of grinding need and type of grinding method whether dry or wet.
The number of stresses is determined by the number of impacts of the grinding media and is a function of the following.
- Impact and vibration frequency and the driving speed.
- Average residence time and the throughput.
- Residence time distribution.
To be contd………
