Although there are many types of crushers, depending on the method of applying force, there are methods of impact crushing and grinding materials. Faced with various crushers on the market, in order to solve these problems and improve the efficiency of crushing equipment, it is necessary to carefully understand the characteristics of crushed materials, the method of crushing materials, and the classification of crushing equipment. When selecting equipment, attention should be paid to the type, hardness, particle size, output and construction location of the crushed material.
1. Material hardness
Material hardness indicates the hardness of the material and is directly related to the brittleness of the material. It is usually expressed in Mohs hardness and is divided into 10 grades. The higher the grade, the harder the material, the greater the difficulty of crushing, and the higher the requirements for crushing equipment. Brittleness indicates the physical property of whether a material is easily broken. The main factors affecting brittleness are the strength, hardness, density, structure, water content, viscosity, cracks, surface condition and shape of the material.
2. The water content of the material
The water content of the material will also affect the choice of crusher. When the water content is too high, the fine material will agglomerate or stick to the coarse material due to the increase in humidity, thereby increasing the viscosity of the material, reducing the ore speed and reducing the productivity. In severe cases, the ore outlet may even be blocked, affecting normal production.
3. The degree of cleavage development of the ore
The degree of cleavage development of the ore also directly affects the productivity of the crusher. When the ore is crushed, it is easy to be broken along the cleavage surface, so the productivity of the crusher is much higher than that of the compact ore.
