In the grinding circuit, possible installation points are in the ball mill discharge and feed (recirculation), (hydro) cyclone feed, overflow and underflow.
The grinding circuit is mostly considered as the first step of a processing plant. Therefore, operators need to have good control over it. One way to follow changes in the circuit is by measuring slurry density, which is manually done in many sites. The manually taken density sample is usable as a parameter to indicate if the grinding process is operating steadily.
However, manual sampling does not allow to have a trend for real-time control. The recommended is to use an in-line measuring device. This allows detecting changes online (real-time) as it happens. As an example, a recommended application to efficiently dose grinding media (balls) and water into the ball mill is measuring density changes in the ball mill discharge.