Liberation spectra around the Hydrocyclone

Now select the Hydrocyclone streams. Click on view graph.

The underflow contains mostly particles in the 30 to 50% Magnetite grade range. However, it also contains significant amounts of liberated and high grade Magnetite particles, even though most of these particles are in the smaller size ranges. This is a good indication of the concentrating action in the Hydrocyclone. These small high grade particles are redirected to the mill. Surely, we would rather regrind only the unliberated particles, but this inherent Hydrocyclone concentrating action is difficult to avoid.