Ball Mill Working Principle

Material from the feed device into the mill warehouse, there are ladder liner or corrugated liner in the warehouse, built with different specifications grinding balls, to make the positions of the materials and grinding ball mill evenly distributed, to avoid starting difficulties due emphasis cause mill, it required start auxiliaries when feeding, the process is also known as swing mill. Subject to material evenly distributed in the warehouse after rotating cylinder produces centrifugal force grinding balls taken to a certain height After the fall, have severe impact on the material and abrasive. Powder is discharged through the discharge device, complete the milling operation.

For more clarity of explanation ball mill work principle, look at the right side of two chart

Size determines the speed of the ball mill barrel effect state of motion of grinding media and grinding operations. When a small number of revolutions , all the raising of the ball charge is small, only the upward deflection angle , wherein each of the media are about their axis. When the tilt angle of the ball charge over the media ( balls or balls , etc. ) when the surface charge on the ball natural angle of repose , the medium that is rolling down along the slopes, this movement is called spilled off the state media . In the ball spilled off the Status of work , the material between the media mainly by grinding stripping effect , the impact effect is small. If the ball 's speed is high enough, the media while rotating circular curve to do with the movement of the cylinder wall rises to a certain height , and then have to do the parabola whereabouts of this state of motion is called Paola style . In the falling ball -type state work , the role of the media material by grinding stripping sports area in the circular curve , falling in the medium where the material impact of the media and a strong rolling mill stripping role of the media , so this movement state supreme ore grinding efficiency . When the number of revolutions of the mill exceeds a certain limit , the media is not attached to the tube wall in the fall , this state is called centrifugal operation , centrifugal operation occurs when the material is also running along with the cylinder, neither impact the role of the media , grinding peel effect is weak

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