Destination Throughput/Recovery

To access this screen:

In the Scheduling Setup screen, select any of the items in the Destinations menu group, including existing destinations. Select the Throughput/Recovery tab.
In the Update Schedule screen, select the browse button next to Destinations (restricted menus system, limited functionality will be available). Select the Throughput/Recovery tab.

Situations can occur where something which is fast to process has a low recovery value and something which is slow to process has a high recovery value – this is where the blender is used to then work out how much of the slow high recovery should be sent compared to how much of the slow low recovery. The Throughput and Recovery columns within the reserves should be set to ‘Weighted by Tonnes’.

The Throughput/Recovery tab is used to define optional material throughput and recovery settings for a Normal destination.

These parameters are only available for Normal destinations i.e. destinations where mined material is processed e.g. crushers, plants, leach pads. All of these destinations will appear under the Processes item in the menu system on the left.

These settings are not available for Stockpiles and Dumps.

These settings are used by the blender and the Recovery Settings are used by the blender and partially by targets.

Example: Throughput and Recovery Settings

If there are two categories going to the plant, for example HGO (high grade ore) and HGS (high grade ore with sulfur) and HGO throughput is set to 800tph while HGS is set to 500tph, even if the plants processing capacity is 1000tph, it will be restricted to processing only 500tph of HGS.

If a mix is sent to the plant it could process, for instance, 400 HGO and 250 HGS to meet its hourly quota. In addition, if the AU within HGO had a recovery rate of 60% and the AU within HGS had a recovery rate of 40%, by processing HGO, the plant would recover 60% of the gold within that ore category e.g. if the material has an AU grade of 10 (grams per ton) then the plant would recover 6 grams per ton instead of 10 with the recovery value set.

Activity steps:

Enable Throughput Settings to define optional throughput behavior for the selected normal destination.
Set By Column and select a throughput data column from the drop-down list.

This is typically a numeric, user-defined attribute that must exist in Block Reserves (Results). For example, column TPH (tonnes per hour values for each evaluation category in each mining block) can be used to control throughput.
Define Rate for throughput:
- Select Tonnes to define rate by material mass.
- Select Volumes to define rate by material volume.
- Enter Number of Rate Units.
- Select Rate Time Unit from the drop-down list.
Tick Recovery Settings to define optional processing recovery settings used by targets and the blender. Recovery is set from reserves-table columns and defines the percentage of material recovered.
For recovery, set By Column and select a data column for each controlling element using the drop-down lists.

This is typically a numeric, user-defined column that must exist in Block Reserves (Results). For example, AUREC (0-100 recovery values) can be associated with element field AU.
Define Rate for throughput and recovery:
- Select Tonnes to define rate by material mass.
- Select Volumes to define rate by material volume.
- Enter Number of Rate Units.
- Select Rate Time Unit from the drop-down list.