XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 535
lines. This crossover frequency marks the point where par-
ticles are equally inclined to move forward or backward.
At lower frequencies, a significant majority of parti-
cles demonstrate forward motion. However, as frequency
escalates, there is a noticeable increase in the proportion
of particles moving backward. Consequently, the research
suggests the feasibility of segregating particles based on size
and transport direction by selecting appropriate frequencies.
In the separation experiments, two groups of particles
were selected: 30 to 50 µm and 75 to 110 µm. The mass
of each group was 0.5 g. In each experiment, 0.5 g of each
group were mixed and dropped from the petri dish into the
board. The mass of the particles collected in the forward
Figure 9. The relationship between average velocity and frequency based on single ballotini
particle experiment
Figure 10. Relationship between the transport (average recovery) and frequency for four
different size group of particles
lines. This crossover frequency marks the point where par-
ticles are equally inclined to move forward or backward.
At lower frequencies, a significant majority of parti-
cles demonstrate forward motion. However, as frequency
escalates, there is a noticeable increase in the proportion
of particles moving backward. Consequently, the research
suggests the feasibility of segregating particles based on size
and transport direction by selecting appropriate frequencies.
In the separation experiments, two groups of particles
were selected: 30 to 50 µm and 75 to 110 µm. The mass
of each group was 0.5 g. In each experiment, 0.5 g of each
group were mixed and dropped from the petri dish into the
board. The mass of the particles collected in the forward
Figure 9. The relationship between average velocity and frequency based on single ballotini
particle experiment
Figure 10. Relationship between the transport (average recovery) and frequency for four
different size group of particles