The basic parameters used in ball mill design , rod mill or any tumbling mill sizing are; material to be ground, characteristics, Bond Work Index, bulk density, specific density, desired mill tonnage capacity DTPH, operating % solids or pulp density, feed size as F80 and maximum chunk size, product size as P80 and maximum and finally the type of circuit open/closed ...
torque mill test as in the example that follows. Torque mill solids load during test: 11.25 kg of ball mill feed sample from plant survey. Sample is reconstituted with water to be the same percent solids as the plant ball mill discharge. Mill speed: 35.2 rpm Length of time of test: 363 seconds
How to Calculate Power From Torque eHow. Torque is the rotational force applied on an object, often measured in pound feet, or lbf ft. However, in order to calculate the power from torque, you also need to know the speed at which the motor is rotating, which is usually measured in rotations per minute, or RPMs.
Time domain records of torque in the shaft of an electric motor rated 2.2 kW driving a constant torque load and a ball mill . The issues exposed above contribute to smearing T f , which, in practice, appears as a combination of related and non related grinding components.