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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. Jaw Crusher

  12. Gyratory Crusher

  13. Symons Cone Crusher

  14. Cone Crusher Liners

  15. Vibrating Screen

  16. Secondary Crushing Plant

  17. Alternate Secondary Crushing Plant Design

  18. Open Circuit Crushing

  19. Grinding Mills

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

  21. Conical Ball-Mill

  22. Grinding Mills Bingham Canyon Grinding Mills

  23. Tube Mill

  24. Rod-Mill Central Peripheral Discharge

  25. Rod-Mill End Peripheral Discharge

  26. Rod-Mill Overflow Discharge

  27. Grinding and Cyanide Leaching Musslewhite Mine, Ontario

  28. Cyclo-Paks

  29. Spiral and Rake Classifiers

  30. Rake Classifier

  31. Rake Classifier

  32. Spiral Classifiers

  33. Cyclone and Particle Recovery

  34. Size Distribution of Soils

  35. Size Distribution Curves

  36. Bimodal Size Distribution

  37. Hydrocyclone

  38. Separator Partition Curves

  39. Stoke’s Law

  40. ABC Grinding Circuit

  41. Bond Work Index Formula

  42. Size Ranges in Separators

  43. Electronic Sorting

  44. Electrostatic Separation

  45. Cross-Belt Magnetic Separator

  46. Drum Magnetic Separator

  47. 2-stage Drum Magnetic Separator

  48. Pinched Sluice

  49. Riffles in a Sluice

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