1. Preliminary assessment of the comminution circuit of the Kambove concentrator, Democratic Republic of Congo Francois Mulenga Electrical and Mining Engineering 9 June 2016

2. Overview of Mine Production Chain Ore Body BlastingCrushing Milling Waste ProductSeparation

3. The Comminution Idea! Butcher (2010)

4. Mineral Liberation Data Butcher (2010)

5. The Attainable Region Paradigm!

6. The Attainable Region Method

7. The Attainable Region Profile

8. The Kambove Case

9. Kambove: Geographical location

10. The Comminution Circuit

11. MODSIM © : The Modular Simulator

12. MODSIM © : The Input Forms

13. MODSIM © Simulation Outputs

14. Setting up the attainable region paths Define the three classes based on flotation requirements:  m 1 = +106 microns (feed class)  m 2 = -106 +38 microns (middlings class)  m 3 = -38 microns (fines class) Plot m 2 as a function of m 1 for different crusher settings

15. Secondary crusher: AR path

16. Tertiary crusher: AR path

17. Tertiary crusher: Size distributions

18. “Integrated comminution”

19. Drill Core Samples

20. Mineral Liberation Data

22. Ultimate goal: Ore Body Modelling

23. Where to from here?  Blasting model  Rod-ball milling circuit  Refine crushing models  Developments of Mineral Liberation Models  Comminution economics

24. Thank You