Certain marble grinding machines, like roller mills

Certain marble grinding machines, like roller mills, utilize the shearing principle. In a roller mill, two or more rollers rotate in opposite directions. The marble is fed between these rollers, and as they rotate, a shearing force is applied to the marble. This shearing force causes the marble to be split and crushed. The rollers can be adjusted to control the gap between them,

which in turn determines the particle size of the ground marble. A smaller gap will result in finer - sized particles as the shearing action is more intense, while a larger gap will produce coarser particles. The shearing principle is particularly useful for marble, as it can break the stone along its internal planes of weakness, achieving efficient grinding.

 

Some marble grinding machines, such as centrifugal mills, make use of the centrifugal force principle. In a centrifugal mill, the marble is placed in a rotating chamber. As the chamber rotates at high speeds, centrifugal force is generated. This force presses the marble 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 marble particles, the grinding media, and the inner walls of the chamber result in the grinding of the marble. 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.