Although the impact crusher appeared late, but the development is very fast. At present, it has been widely used in China’s cement, building materials, coal and chemical industry and mineral processing and other industrial sectors for a variety of ore, fine crushing operations, can also be used as ore crushing equipment. The reason why the impact crusher has developed so rapidly is mainly because it has the following important characteristics:
1, the crushing ratio is very large. The maximum crushing ratio of the general crusher is not more than 10, while the crushing ratio of the impact crusher is generally 30-40, and the maximum can reach 150. Therefore, the current three-stage crushing process can be completed with one or two stage impact crusher, which greatly simplifies the production process and saves investment costs.
2, high crushing efficiency, low power consumption. Because the impact strength of the general ore is much smaller than the compressive strength, at the same time, because the ore is affected by the high-speed action of the hitting plate and after multiple impacts, the ore is first cracked along the joint interface and the place where the organization is weak, therefore, the crushing efficiency of this kind of crusher is high, and the power consumption is low.
3, the product particle size is uniform, too little crushing phenomenon. This crusher uses kinetic energy to break up the ore, and the kinetic energy of each ore is proportional to the mass of the block of ore. Therefore, in the crushing process, the large ore is broken to a greater extent, but the smaller particle of ore is not broken under certain conditions, so the particle size of the broken product is uniform, and the phenomenon of over-crushing is less.
4, can be selectively broken. In the impact crushing process, useful minerals and gangue are first broken along the joint to use useful minerals to produce monomer separation, especially for coarse-grained embedded useful minerals.
5. Great adaptability. Impact crusher can break brittle, fibrous and medium hardness below the ore, especially suitable for limestone and other brittle ore crushing, so the cement and chemical industry using impact crusher is very suitable.
6, the equipment is small in size, light in weight, simple in structure, easy to manufacture and convenient in maintenance.
Based on the above obvious advantages of the impact crusher, the current countries in various fields are widely used and vigorously developed. However, the main disadvantage of the impact crusher is that when crushing hard ore, the wear of the plate hammer (hitting plate) and the impact plate is larger, in addition, the impact crusher is a high-speed rotation and impact to crush the ore machine, the precision of parts processing is high, and to carry out static balance and dynamic balance, in order to extend the service time.
Post time: Jan-01-2025