Mechanical Operations
Tabling process used for separating two materials of different densities by passing the dilute pulp over a table/deck, which is inclined from the horizontal surface at an angle of about

5 to 10°
2 to 5°
10 to 15°
1 to 2°

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Mechanical Operations
For a non-spherical particle, the sphericity

Has the dimension of length
Is always less than 1
Is defined as the ratio of surface area of a sphere having the same volume as the particle to the actual surface area of the particle
Is the ratio of volume of a sphere having the same surface area as the particle to the actual volume of the particle

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Mechanical Operations
Bond crushing law

States that the work required for the crushing is proportional to the new surface created
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
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

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