An experimental study: mixing rate of granular materials under vertical vibration

Abstract

Abstract This research aims to the master development result of learning in mixing ratio and quickly rate of mixing granular material for elementary study apply and development of mixing ratio industry and agriculture. The researcher separate 2 parts of mixing ratio put low dense material on the top and high dense material on the top with frequencies from 6, 7 and 8 Hz, Recording 60 s. of picture frame. Counting the mixing granular material in different high in container. Calculating the percentage of mixing in each different high, mixing rate 0 – 1 different of each experiment. Material used ceramics (1.61 g/cm3), plastic (0.98 g/cm3) and wood (0.72 g/cm3). It was found that more frequency better mixing, the high dense granular material on the top is mixing rate better than the low dense granular material on the top. In the time at 40 – 60 s. were the best of mixing rate, mixing granular material with different time in each frequency. The movement of granular material able to occurs in many form, disperse, clumping and spin and roll. Furthermore, the low dense granular much more quickly movement. Conclude that density, position, frequency and time effect to mixing. Frequency very with quickly but inverse with density of material and the materials were mixed at its best in each period of time different.