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Mining Methods

Mining Methods. What determines the type of mining?. Depth of overburden Size of the ore body Shape of the ore body Grade. What are the types of mining?. Open Pit Underground Solution. Open Pit Mining. Another type of open pit mining. Strip Mining E.g. coal, placer.

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Mining Methods

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  1. Mining Methods

  2. What determines the type of mining? • Depth of overburden • Size of the ore body • Shape of the ore body • Grade

  3. What are the types of mining? • Open Pit • Underground • Solution

  4. Open Pit Mining

  5. Another type of open pit mining • Strip Mining • E.g. coal, placer

  6. Some photos and machinery used in open-pit mining

  7. ?Dinky Toy?

  8. Drilling in pit

  9. Crushing in pit

  10. Loading ore in pit

  11. Some types of underground mining • Room and Pillar • Cut and Fill • Long wall (coal)

  12. Room and Pillar

  13. Cut and Fill

  14. Long Wall

  15. Solution Mining

  16. Beneficiation 1.Concentration of ore minerals removes the ore mineral from the waste 2. Smelting removes the metal from the ore mineral by a variety of ways 3. Heap Leaching removes metal from the ore by solution

  17. Methods of concentrating • Grinding of ore to allow separation of the ore minerals by: • Floatation • Magnets

  18. Types of smelting • Roasting • Hydrometallurgy • Electrotwinning

  19. Smelting

  20. Result at Kidd Creek

  21. Heap Leaching • In this process, typically done for Au, the ore is not ground, but rather, crushed and piled on the surface. • Weak solutions percolate through the material leaching out the desired metals. • The solutions are collected and the metals are precipitated

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