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LIBERATION, SEPARATION, EXTRACTION

LIBERATION, SEPARATION, EXTRACTION. STAGE 1 - Blasting STAGE 2 - Primary Crushing STAGE 3 - Secondary Crushing STAGE 4 - Grinding STAGE 5 - Separation by size STAGE 6 - Separation by values STAGE 7 - Extraction of values. What is an Ore?. Mineralized rock that can be mined/processed

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LIBERATION, SEPARATION, EXTRACTION

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  1. LIBERATION, SEPARATION, EXTRACTION STAGE 1 - Blasting STAGE 2 - Primary Crushing STAGE 3 - Secondary Crushing STAGE 4 - Grinding STAGE 5 - Separation by size STAGE 6 - Separation by values STAGE 7 - Extraction of values

  2. What is an Ore? • Mineralized rock that can be mined/processed • At a time (temporal) • At a place (spatial) • At a profit (economic) • Waste rock can become an ore • Tailings can become an ore

  3. Drilling and Blasting • Create a top size suitable for transportation • Begin the process of Liberation • Factors • Drill hole diameter • Drill hole spacing and pattern • Explosive type • Delay system

  4. Drilling and Blasting

  5. Influence of Blasting Practices S. Morrell and W. Valery, 2001. “Influence of Feed Size on AG/SAG Mill Performance”. SAG 2001, Vancouver, Canada, pp203-214 Morrell, S., 2003. “The Influence of Feed Size on Autogenous and Semiautogenous Grinding and the Role of Blasting in its Manipulation”, Proc. 22nd International Mineral Processing Congress, Eds.: L.Lorenzen and D.J. Bradshaw, p.526-533.

  6. Influence of Blasting Practices S. Morrell and W. Valery, 2001. “Influence of Feed Size on AG/SAG Mill Performance”. SAG 2001, Vancouver, Canada, pp203-214 Morrell, S., 2003. “The Influence of Feed Size on Autogenous and Semiautogenous Grinding and the Role of Blasting in its Manipulation”, Proc. 22nd International Mineral Processing Congress, Eds.: L.Lorenzen and D.J. Bradshaw, p.526-533.

  7. Order of Processing Blasting Primary Crushing Secondary Crushing Grinding Regrinding

  8. Crushing Machines

  9. Crushing Machines

  10. HPGR – high-pressure grinding rolls

  11. High-Pressure Grinding Rolls

  12. Jaw Crusher

  13. Gyratory Crusher

  14. Symons Cone Crusher

  15. Cone Crusher Liners

  16. Vibrating Screen

  17. Secondary Crushing Plant

  18. Alternate Secondary Crushing Plant Design

  19. Open Circuit Crushing

  20. Grinding Mills

  21. Grinding Mills Rod Mill – opened up for maintenance Ball Mill – overflow type

  22. Conical Ball-Mill

  23. Grinding Mills Bingham Canyon Grinding Mills

  24. Tube Mill

  25. Rod-Mill Central Peripheral Discharge

  26. Rod-Mill End Peripheral Discharge

  27. Rod-Mill Overflow Discharge

  28. Grinding and Cyanide Leaching Musslewhite Mine, Ontario

  29. Cyclo-Paks

  30. Spiral and Rake Classifiers

  31. Rake Classifier

  32. Rake Classifier

  33. Spiral Classifiers

  34. Cyclone and Particle Recovery

  35. Size Distribution of Soils

  36. Size Distribution Curves

  37. Bimodal Size Distribution

  38. Hydrocyclone

  39. Separator Partition Curves

  40. Stoke’s Law

  41. ABC Grinding Circuit

  42. Bond Work Index Formula

  43. Size Ranges in Separators

  44. Electronic Sorting

  45. Electrostatic Separation

  46. Cross-Belt Magnetic Separator

  47. Drum Magnetic Separator

  48. 2-stage Drum Magnetic Separator

  49. Pinched Sluice

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