Length/diameter ratio of a ball mill is
A. 1.5
B. 1
C. < 1
D. > 1
Answer: Option C
Solution (By Examveda Team)
A ball mill is a type of grinder used in mechanical operations to grind and blend materials for use in mineral dressing, paints, pyrotechnics, ceramics, and selective laser sintering.The design of a ball mill is typically cylindrical with a horizontal axis, partially filled with the material to be ground plus the grinding medium (like steel balls).
The length to diameter (L/D) ratio of a ball mill is an important design factor as it affects the grinding efficiency and operational stability.
For ball mills, the L/D ratio is usually less than 1, meaning the diameter of the mill is greater than its length.
This configuration helps in achieving a better cascading action of the grinding media and efficient grinding performance.
Therefore, the correct answer is: < 1 (Option C).
This Question Belongs to Chemical Engineering >> Mechanical Operations
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The length-to-diameter (L/D) ratio of a ball mill is typically taken as 1.5.