Abstract
The effects of vibration amplitude and frequancy on the grinding efficiency of a vibration mill is studied by using test equipment.
Although the impact force (the product of vibration amplitude and the square of frequency) must be increased to improve the grinding efficiency of the mill, the power requirements are to be kept low.
In this paper, the behavior of the particle-size distribution, the mean particle diameter, and the power consumption is studied under conditions of, (i) increasing the vibration amplitude at a constant frequency, (ii) increasing the frequency at a constant vibration amplitude, and (iii) varying the vibration amplitude and the frequency at a constant impact force.
From the results obtained, it is concluded that the increase in the vibration amplitude rather than the frequency results in effective particle-size reduction with low power consumption.
