Operating principle
The impact crusher, one of the popular rock crusher equipment, is a piece of equipment application with shock principle, the materials in the crushing cavity suffer a high speed crushing with the high-speed rotating hammer, and the crushed materials rush over to the impact plate and coming back again. This process will repeat until the products satisfied the requirements .the fractured particle can discharged as its size is smaller than the gap between the counterattack plate and the hammer. The energy request for various materials is inconsistently. The smaller the material is the greater the energy need because of the phasing out of internal defects. This conclusion is based on the relation of energy and linear velocity formula: A=mra.
With the improvement of extractive and the increased block size of extractive material, single rotor impact crusher limits the increase of feeding particle size due to its own structure, thus double rotor had been created out. In order to increase the role of the second rotor, double rotor impact crusher with height difference came after. Going back to the energy-linear formula, we can see that the first rotor crushes the materials in a lower speed while the second one go with a higher speed, as a result, reduction ratio has improved.
The performance features of impact crusher
Impact crusher is a new efficient crush equipment with small volume, simple construction, high crusher ratio (as high as 40), energy saving, high productivities and uniform products grain degree as well as its function of optional crush that dealing with the material those with 100-500 mm side long. There is a very large breaking capacity of large scale impact crushers, the production of which has reached to 300-350 tons per hour. Knowing the features above, we can conclude that the impact crushers are surely the best choice in the producing line for re-crushing.
Applicability
The impact crusher is applying to cement and building materials industry, mining, metallurgy, chemical industry, electricity water industries and the hard, brittle materials to which the compressive strength is less than 350MPa. Especially suitable for the fabric and artificial aggregate, sand, such as basalt, river gravel, granite, hard materials used in the projects of hydropower and expressway and so on so forth. The most important application areas in China are the cement industry, paving and underground industries, the applications of impact crusher in these industries have been accounted for a total of about 20% of the crusher.
Through the functions and features that mentioned above, you can use impact crusher correctly.
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