Certain grinding machines, like some types of roller mills, make use of the shearing principle.

In some types of quartz stone grinding machines, such as impact crushers and certain high - speed grinding mills, the impact principle is utilized. In an impact crusher, large quartz stones are fed into the machine. The stones are then struck by high - speed rotating hammers or plates. The force of these impacts fractures the quartz stones into smaller pieces. This principle is especially effective for reducing the size of large - sized quartz feedstock quickly.

The impact energy can be adjusted by changing the speed of the rotating components or the design of the impact elements. In high - speed grinding mills, the impact principle is combined with abrasion. The quartz particles are thrown against the inner walls of the grinding chamber or against other grinding media at high speeds, causing them to break and be ground further. This combination of impact and abrasion allows for efficient grinding and can be used to produce a wide range of particle sizes.

 

Certain grinding machines, like some types of roller mills, make use of the shearing principle. In a roller mill, two or more rollers rotate in opposite directions. The quartz stone is fed between these rollers. As the rollers rotate, they exert a shearing force on the quartz. This shearing force causes the quartz to be split and crushed into smaller particles. The distance between the rollers can be adjusted to control the particle size of the ground quartz.

A smaller gap between the rollers will result in finer - sized particles, while a larger gap will produce coarser particles. The shearing principle is particularly useful for materials like quartz that have a certain degree of brittleness. The shearing action can break the quartz along its internal weaknesses, resulting in a more efficient grinding process.