A crusher is a machine designed to reduce large rocks to small stones, gravel, or rock dust. Crushers can be used to reduce the size or change the shape of materials so; that they can be more easily disposed or processed. Crushing is an operation to reduce something to small pieces.
In mineral processing or metallurgy, the first stage of comminution is crushing. Depending of the type of rock (geometallurgy) to be crushed, there are 2 largely different techniques at your disposition for crushing rocks. In principle, compression crushing is used on hard and abrasive rocks by placing them between a high wear-resistant plate/surface. Less abrasive and softer rocks or stones .
Mineral Rocks & Ore Crushing Machines Stedman impact crushers, mills, and grinders are used in nearly every mineral, ore, and mining application. Whether you are processing iron ore, coal, rock, salt, wood chips, or clay – to name a few – we have your solution to size reduction.
Nonmetallic mineral processing plants are commonly referred to as rock crushers. These plants use equipment to crush or grind any nonmetallic minerals wherever located, including lime plants, power plants, steel mills, asphalt concrete plants, Portland cement plants or any other facility processing nonmetallic minerals.
A working cone crusher in a mineral process plant operation, performing both secondary and tertiary crushing functions. The roll crusher consists of a pair of horizontal cylindrical manganese steel spring rolls (Fig. 13.14), which rotate in opposite directions. The falling feed material is squeezed and crushed between the rollers.
Introduction to Mineral Processing 7 Roll Crushers Rolls crushers consists of a pair of horizontal cylindrical rollers through which material is passed. The two rollers rotate in opposite directions nipping and crushing material between them. These types of crushers are used in secondary or tertiary crushing applications.