Following a successful commissioning and start-up, we believe that two grinding lines at Las Bambas, Perú, each consisting of one SAG Mill and one Ball Mill (this mill combination is uniquely specific to Las Bambas ore types), are operating at design throughput of close to 140,000 tpd and within the range predicted by DJB from a managed multi-sample geometallurgical testing program (i.e., no pilot plant tests).
Your Project, whether small or large-scale, preliminary or more advanced, could benefit from our multi-discipline approach. Please contact us with your requirements at firstname.lastname@example.org.
Comminution Consultants: Crushing and Grinding – DJB Consultants Inc.
Comminution Specialists providing Independent Assessment of Grinding Circuit Design based on an Analysis of Different Comminution Test Protocols and Recommendations for:
Planning Dedicated Sample Drill Hole Locations for a “Geo-Metallurgical/Comminution Study” at Conceptual, and/or Pre-Feasibility, and/or Bankable Feasibility Level (Identification of Sample Intervals, the Number of Samples, Flow Charts for Selecting Samples and Identification of Comminution Test Protocols).
Specification of Comminution Test Programs and Scope of Work for Test Laboratories (Third-Party Monitoring of Test Laboratory Procedures and QA/QC protocols and Assessment of Comminution Test Results).
Definition of Specific Energy Requirements and Efficient Design of a Grinding Circuit (Simulation of Mill Sizing and Prediction of Mill Feed Rates by DJB’s “Millpower2000” Bond Work Index-based Methodology, Matching the Mill Drive to the Mill for Effective Operating Capability to the Desired Operating Criteria, Comparison with the Results of Alternative Test Protocols).
Estimation of Operating Cost Parameters (Power and Steel Consumption)
Estimation of Preliminary Capital Cost
Use of the Mine Block Model to Optimize Mining and Processing Rates in a Mine Production Schedule
DJB Consultants Inc. specializes in working collegially with Clients’ field and mine geologists, project miners and metallurgists, and engineering specialists.