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Questions and Answers
What is this module about?
How we manage crushing within the processing plant.
What will you learn in this module?
Understanding of crushing theory fundamentals, definition of comminution, work index, specific energy input, and identification of jaw and cone crusher components.
What do you have to do to complete this unit?
Complete all training tasks in the workbook, review exercise, and assessment given by your supervisor.
What is comminution?
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What is the purpose of comminution?
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What is the first stage of comminution?
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What two processes comprise comminution in the processing plant?
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How is crushing achieved?
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Study Notes
Introduction to Crushing
- Crushing is the first step in processing ore from the mine.
- Crushing is a part of comminution.
- Comminution is the process of progressively reducing the particle size of an ore stream.
Introduction to Comminution
- Comminution is necessary to liberate valuable minerals from gangue material.
- Comminution increases the surface area of valuable minerals for chemical reactions.
- Blasting in the mine can be viewed as the first stage of comminution.
- Crushing further reduces the size of run-of-mine (ROM) ore.
- Grinding follows crushing and aims to separate valuable minerals from gangue.
- Crushing uses compression against a rigid surface, while grinding involves abrasion and impact.
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Description
This quiz covers the basics of crushing and comminution, essential processes in ore processing. Understand how crushing initiates the separation of valuable minerals from gangue and sets the stage for further size reduction. Learn about the methods used during these processes and their importance in mining operations.