Question

which mill is free from wear​

Answer 1

Answer:

Ball mill is free from wear

Explanation:

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Answer 2

The ball mill is free from wear.

Ball mills:

The main working principle of any mill is to crush and grind the ore to subsequent obtain minerals at a desired fineness.

Functioning of ball mills:

• The ball mills are the most preferred since they are not only simple to use but also their operating cost is lesser. But the efficiency of the ball mill work is directly proportional to the amount of power input given.
• In case of small milling plants, simplicity is one of the most important concerns. Here ball mills play an essential part. A screen can be used for coarse products and a classifier is used for fine products.
• If the finished product is not expected to be uniform, the ball mill could be operated in an open circuit but if the finished product is expected  to be uniform the ball mil is operated in a closed circuit.