Minimizing dilution is essential for maximizing ore recovery, improving processing efficiency, and ensuring the economic viability of a mining operation. Here are key strategies to effectively reduce dilution throughout the mining cycle.
- Accurate Geological and Mine Planning
- Develop detailed geological models to clearly define ore–waste boundaries.
- Use sub-block modelling and adjust bench heights based on orebody geometry.
- Design optimized mine layouts that minimize dilution.
- Precision Drilling and Blasting
- Create separate drill and blast plans for ore and waste zones.
- Use precision drilling (e.g. HP GPS) to reduce overbreak.
- Clean ore contact zones before blasting and regularly assess fragmentation.
- Effective Grade Control
- Use blast hole sampling to update block models in real-time.
- Implement grade control plans aligned with quality and tonnage targets.
- Ensure selective mining and prevent mixing of high- and low-grade ore.
- Controlled Material Handling and Equipment Use
- Use suitable equipment for selective mining.
- Apply real-time ore control technologies and haulage alerts.
- Manage stockpiles by grade and maintain proper blending practices.
- Training, Monitoring, and Continuous Improvement
- Train personnel to minimize dilution through proper techniques.
- Monitor dilution levels, reconcile with plans, and take corrective actions.
- Encourage a culture of continuous improvement and geotechnical stability.
Text rights:(2 New Messages, 2024)
Text source:2 new messages. (2024, October 23). https://groundhogapps.com/ore-dilution-and-quality-control/
