Mechanical Operations
Pebble mills are tumbling mills widely used for grinding in the manufacture of paints & pigments and cosmetic industries, where iron contamination in the product is highly objectionable. Pebbles used in pebble mill are made of
States that the work required to form particle of any size from very large feed is proportional to the square root of the volume to surface ratio of the product
States that the work required for the crushing is proportional to the new surface created
Is less realistic in estimating the power requirements of commercial crushers
Calls for relatively less energy for the smaller product particles, than does the Rittinger law
EXAMIANS