XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 411
with secondary cone crusher, shown in Figure 4. This
tower contains transfer chutes which could be modified
and upgraded with a customised diverter to enable bulk
ore sorting with minimal impact on production. Sufficient
clear area to the Northwest of the transfer tower was able
to easily accommodate both a reject handling conveyor belt
and stockpile. Satellite imagery in Figure 5 shows the area
before and after BOS installation.
Magnetic Resonance Analyser
Limited placement on CV-1201 forced installing the MRA
46 meters from the feed end, leaving 67 meters to the dis-
charge point (Figure 6). This measurement is crucial for any
BOS system as the sensor-to-diverter time must be at least
the measurement pod duration +processing time +half the
diverter actuation time. The short measurement interval
achievable using magnetic resonance adds to the flexibility
Figure 3. Process flow diagram of existing KMP primary sulphide crushing and grinding circuit with retrofitted BOS
equipment shown in revision clouds and the sampling point for the dynamic validation test indicated (top right)
Figure 4. Kansanshi S2 primary gyratory crusher (far right), discharging to CV-1201, transfer tower
and cone crusher (centre) discharging to coarse ore grinding feed stockpile (left). Photo taken prior to
analyser and bulk sorting retrofit
with secondary cone crusher, shown in Figure 4. This
tower contains transfer chutes which could be modified
and upgraded with a customised diverter to enable bulk
ore sorting with minimal impact on production. Sufficient
clear area to the Northwest of the transfer tower was able
to easily accommodate both a reject handling conveyor belt
and stockpile. Satellite imagery in Figure 5 shows the area
before and after BOS installation.
Magnetic Resonance Analyser
Limited placement on CV-1201 forced installing the MRA
46 meters from the feed end, leaving 67 meters to the dis-
charge point (Figure 6). This measurement is crucial for any
BOS system as the sensor-to-diverter time must be at least
the measurement pod duration +processing time +half the
diverter actuation time. The short measurement interval
achievable using magnetic resonance adds to the flexibility
Figure 3. Process flow diagram of existing KMP primary sulphide crushing and grinding circuit with retrofitted BOS
equipment shown in revision clouds and the sampling point for the dynamic validation test indicated (top right)
Figure 4. Kansanshi S2 primary gyratory crusher (far right), discharging to CV-1201, transfer tower
and cone crusher (centre) discharging to coarse ore grinding feed stockpile (left). Photo taken prior to
analyser and bulk sorting retrofit