Material crushing is a kind of process engineering that widely used in the fields of metallurgy, mining, building material, chemical industry, electric power, ceramics and construction industries. Every year there are a large number of raw materials and reusing waste need to be disposed, and annually increase with the rapid development of industry. It shows that crushing device occupied an important position in the economic development.
According to the requirement of crushing granularity, the crushing machine can be divided into coarse crusher, medium crusher and fine crusher. Coarse crusher can crush the materials with size of 1500-500mm into the size of 350-100mm, medium crusher can crush the size of 350-100mm into the size of 100-40mm, and fine crusher crushes the size of 100-40mm into 30-10mm.
According to the structure and working principle, the crushing machine can be divided into jaw crusher, gyratory crusher, cone crusher, roller crusher, hammer crusher, and impact crusher.
There are various type of grinders to be used in industry department, according to the structure and working principle, it can be divided into mill, ball mill, autogenous mill, vibrating mill, tower-type mill, centrifuge mill, and airflow flour mill.
According to the products granularity, grinder is divided into coarse grinding, fine grinding and ultra-fine grinding. Coarse grinding will grind the materials to 0.1mm, fine grinding to 0.06-0.1mm, ultra-fine grinding grinds materials to 0.004-0.02mm or less.