Which of the following crushing laws is most accurately applicable to the fine grinding of materials ?

Mechanical Operations
Which of the following crushing laws is most accurately applicable to the fine grinding of materials ?

Bond's crushing law

None of these

Rittinger's law

Kick's law

Bond's crushing law

None of these

Rittinger's law

Kick's law

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Mechanical Operations
Bond crushing law

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

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

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

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Mechanical Operations
What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls?

2.76

0.66

1

0.5

2.76

0.66

1

0.5

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Mechanical Operations
Which is the most suitable conveyor for transportation of sticky material?

Apron conveyor

Screw conveyor

Belt conveyor

Pneumatic conveyor

Apron conveyor

Screw conveyor

Belt conveyor

Pneumatic conveyor

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Mechanical Operations
Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the

Heavy tonnages of rocks or gravel

Light metal powder down upto 4 meshsize

Dry chemicals

Powdered food & granular materials

Heavy tonnages of rocks or gravel

Light metal powder down upto 4 meshsize

Dry chemicals

Powdered food & granular materials

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Mechanical Operations
To get a fine talc powder from its granules, the equipment used is

Roller crusher

Jaw crusher

Ball mill

Gyratory crusher

Roller crusher

Jaw crusher

Ball mill

Gyratory crusher

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Mechanical Operations

Mechanical Operations Which of the following crushing laws is most accurately applicable to the fine grinding of materials ?

Mechanical Operations Bond crushing law

Mechanical Operations What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls?

Mechanical Operations Which is the most suitable conveyor for transportation of sticky material?

Mechanical Operations Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the

Mechanical Operations To get a fine talc powder from its granules, the equipment used is

Mechanical Operations
Which of the following crushing laws is most accurately applicable to the fine grinding of materials ?

Mechanical Operations
Bond crushing law

Mechanical Operations
What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls?

Mechanical Operations
Which is the most suitable conveyor for transportation of sticky material?

Mechanical Operations
Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the

Mechanical Operations
To get a fine talc powder from its granules, the equipment used is