A ball mill is a type of grinder used to grind, blend and sometimes for mixing of materials for use . The general idea behind the ball mill is an ancient one, but it was not until the industrial revolution and the invention of steam power that an effective ball milling machine could be built. It is reported to have been used for.
A mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cutting .. In materials processing a grinder is a machine for producing fine particle size . Ball mills normally operate with an approximate ball charge of 30%. .. used is the buhrstone mill, which is similar to old fashioned flour mills.