This shearing force causes the limestone to be split and crushed.

This shearing force causes the limestone to be split and crushed. The gap between the rollers can be adjusted to control the particle size of the ground limestone. A smaller gap will result in a more intense shearing action, producing finer - sized particles, while a larger gap will yield coarser particles. The shearing principle is effective for limestone as it can break the rock along its internal planes of weakness, facilitating efficient grinding.

Centrifugal Force PrincipleSome limestone grinding machines, such as centrifugal mills, make use of the centrifugal force principle. In a centrifugal mill, the limestone is placed in a rotating chamber. As the chamber rotates at high speeds, centrifugal force is generated. This force presses the limestone particles against the inner walls of the chamber or against grinding media, which can be balls or other hard particles.

The continuous impact and abrasion between the limestone particles, the grinding media, and the inner walls of the chamber result in the grinding of the limestone. The speed of rotation of the chamber can be adjusted to control the intensity of the grinding process. Higher speeds will generate greater centrifugal force, leading to more aggressive grinding and potentially smaller particle sizes.

Fluid - Energy - Assisted GrindingIn modern limestone grinding technology, fluid - energy - assisted grinding techniques, such as those used in jet mills, are becoming increasingly popular.