Crusher will wear in the process of the ore processing itself, especially when crusher is not suitable for ore materials to be processed, which will increase the wear. In order to reduce the wear caused by mineral raw material to the crusher itself or its parts, should choose appropriate crusher equipment according to the pressure resistance and abrasive resistance of different ore and mineral characteristics of these factors such as humidity.
Hammer crusher is equipped with comb board, from which the materials are discharged. Seen from the humidity aspect, ore with large humidity is not suitable for hammer crusher, such as clay mixture. Hammer crusher is suitable for crushing all kinds of medium hard and abrasive weak material. The material compressive strength does not exceed 100 mpa, moisture content is less than 15%. Such as coal, salt, chalk, plaster, brick and tile, limestone and so on are easily broken material by hammer crusher.
Impact crusher uses impact force to crush material, which is suitable for crushing some large brittleness, hardness raw materials. Be sure not to use grinding crusher, which will generate more superfine powder.
For smaller Mohs hardness and fragile ore stones, such as shale, gypsum, anthracite, ordinary marl, crushed sandstone, conglomerate, rocky soil and crushed shale, etc. which are not necessary to use jaw crusher, the hammer crusher, roller crusher, impact crusher, cone crusher and complex crusher is the better choice.
For larger Mohs hardness, meticulous and toughness high hardness ores, such as quartzite, basalt, granite, sandstone, limestone, iron ore, magnesium ore, marble, dolomite, pyrite and siliceous shale, etc. the strong crushing capacity of crushers should be selected, such as jaw crusher. If use other forms of crushers, which will be badly worn.
As for the medium hardness ore, such as clay rocks, no solid limestone, sandstone, density marl and so on, this kind of ore can be crushed with jaw crusher and heavy hammer impact crusher, can also with roller crusher, impact crusher, hammer crusher. The optional range is wide.
Therefore, scientifically choose appropriate crusher is the basis of a certain understanding for the relevant characteristics of the processing ore materials, and then analysis and comparison shall be done according to the different working principle of crusher. When many options can be selected, one-time investment and long-time consumption should be considered together, then make the final conclusion.