Metal Ore Concentration (Leaving Cert Engineering): Flashcards
📚Flashcards
Practise the cards
14 cards from this deck
ShowHide
Practise the cards
14 cards from this deck
What is magnetic separation?
What is magnetic separation?
Physical method to separate magnetic ore from non-magnetic waste
Primary application of magnetic separation
Primary application of magnetic separation
Iron ore concentration
Why use magnetic separation after mining?
Why use magnetic separation after mining?
Reduces transport costs & weight by removing waste
Key principle behind magnetic separation
Key principle behind magnetic separation
Difference in magnetic properties between ore and waste
Iron's magnetic property
Iron's magnetic property
Strongly attracted to magnetic fields
Non-magnetic waste materials in iron ore
Non-magnetic waste materials in iron ore
Clay and rock
First step in magnetic separation
First step in magnetic separation
Crushing ore into small uniform particles
Purpose of magnetised roller
Purpose of magnetised roller
Creates strong magnetic field for separation
What happens to magnetic particles at roller?
What happens to magnetic particles at roller?
Attracted to roller and pulled to one side
What happens to non-magnetic materials?
What happens to non-magnetic materials?
Fall away into separate collection area
Function of hopper
Function of hopper
Feeds powdered ore into the system
Outcome of magnetic separation
Outcome of magnetic separation
Ore and waste collected in different containers
When is magnetic separation most effective?
When is magnetic separation most effective?
When there's clear difference in magnetic properties
3 benefits of magnetic separation
3 benefits of magnetic separation
Reduced costs, reduced weight, improved ore quality