We should understand the properties which are useful to find the size reduction method of solids. these properties tell about what type of reduction mechanism and equipment is suitable and how much power is required.
1. Hardness: resistance to identation or scratching. the hardest mineral is diamond. hardness is usually expressed in terms of Moh's scale. Minerals with a Moh's hardness of 4 or less are classed as soft; others are considered hard. for hard materials, crushers are used like jaw, gyratory or disk, while for soft material like coal, hammer mills or toothed rolls are used.
2. Brittleness: ease with which a substance may be broken by impact.
1. Hardness: resistance to identation or scratching. the hardest mineral is diamond. hardness is usually expressed in terms of Moh's scale. Minerals with a Moh's hardness of 4 or less are classed as soft; others are considered hard. for hard materials, crushers are used like jaw, gyratory or disk, while for soft material like coal, hammer mills or toothed rolls are used.
2. Brittleness: ease with which a substance may be broken by impact.
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