Mineral Processing and Comminution in Mining Quiz
15 Questions
10 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is another term for mineral processing?

  • Ore extraction
  • Mineral extraction
  • Metal purification
  • Ore dressing (correct)
  • What is the main purpose of concentration in mineral processing?

  • To remove gangue particles from ore (correct)
  • To crush the ore into smaller particles
  • To enhance the percentage of valuable metal in the ore
  • To separate valuable minerals from gangue
  • How is size separation of ore achieved for finer particles in slurry form?

  • Centrifugal classifiers (correct)
  • Magnetic separation
  • Gravity separation
  • Flotation
  • What is the main objective of comminution in mineral processing?

    <p>To liberate valuable minerals from gangue</p> Signup and view all the answers

    What is the initial stage of comminution in mineral processing?

    <p>Crushing</p> Signup and view all the answers

    Which type of crushers operate in open circuit?

    <p>Jaw crushers</p> Signup and view all the answers

    What is the main equipment used for secondary/tertiary crushing in closed circuit?

    <p>Cone crushers</p> Signup and view all the answers

    What is the final stage of comminution in mineral processing?

    <p>Grinding</p> Signup and view all the answers

    Which type of mills use steel rods for primary grinding?

    <p>Rod mills</p> Signup and view all the answers

    In which type of mills are steel balls used for secondary grinding?

    <p>Ball mills</p> Signup and view all the answers

    What type of mills use a combination of ore and steel balls as grinding media?

    <p>Semi-autogenous mills</p> Signup and view all the answers

    What technology is used for size separation of coarse dry ore?

    <p>Vibrating screens</p> Signup and view all the answers

    What technology is used for size separation of finer ore in slurry form?

    <p>Centrifugal classifiers</p> Signup and view all the answers

    What is the aim of size separation in mining?

    <p>To separate ore into undersize and oversize</p> Signup and view all the answers

    Who is the author of the text on mineral processing and comminution in mining?

    <p>Ahlam Maremi</p> Signup and view all the answers

    Study Notes

    Mineral Processing and Comminution in Mining

    • Mineral processing involves separating valuable minerals from gangue using physical and surface properties.
    • Crushing is the initial stage of comminution, typically done in two or three stages of size reduction.
    • Comminution circuits can be open or closed, with primary crushers operating in open circuit.
    • Primary crushers include jaw crushers (with swinging steel jaws) and gyratory crushers (with a conically shaped crushing head).
    • Secondary/tertiary crushing is mainly performed by cone crushers in closed circuit.
    • Grinding is the final stage of comminution, commonly performed in rod mills, ball mills, or semi-autogenous mills.
    • Rod mills use steel rods for primary grinding and operate in open circuit.
    • Ball mills use steel balls for secondary grinding and are operated in closed circuit.
    • Semi-autogenous mills use a combination of ore and steel balls as grinding media.
    • Size separation technologies in mining include vibrating screens for coarse dry ore and centrifugal classifiers for finer ore in slurry form.
    • Size separation aims to separate ore into undersize (smaller than desired) and oversize (requires further size reduction).
    • The text is authored by Ahlam Maremi from the Mining Optimization Laboratory.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Description

    Test your knowledge of mineral processing and comminution in mining with this quiz. Explore topics such as crushing, grinding, and size separation technologies, and learn about the different stages and equipment involved in the process.

    More Like This

    Use Quizgecko on...
    Browser
    Browser