Types of Milling Operations Quiz
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Types of Milling Operations Quiz

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@SpontaneousPrime

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Questions and Answers

What type of comminution occurs mainly in the cascade regime of a mill?

  • Abrasive comminution (correct)
  • Comminution by impact
  • Comminution by compression
  • Attrition comminution

    • At what mill speeds does cataracting regime occur?

  • At higher mill speeds (correct)
  • At ultra-low speeds
  • At critical speed
  • At lower mill speeds

    • What fraction of the mill volume is filled by the grinding medium known as?

  • Ball loading (correct)
  • Rod loading
  • Critical loading
  • Medium filling

    • At what ball loading is the specific grinding energy a minimum?

    <p>15 to 20%</p> Signup and view all the answers

    Why are ball loads less than 25% not used?

    <p>Because low ball-loads give excessive liner wear</p> Signup and view all the answers

    What happens if the mill discharge is not fine enough?

    <p>Increase in circulating load</p> Signup and view all the answers

    What is the main factor influencing liner wear in mills?

    <p>$\text{Ball loading}$</p> Signup and view all the answers

    How does introducing more balls into the mill affect grinding?

    <p>$\text{Improves grinding efficiency}$</p> Signup and view all the answers

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