With the development of infrastructure, the crushed stone production line is used more and more widely. Cobbles, river pebbles, limestone, granite and other ores are separated into different particles by crushing and screening in the crushed stone production line, and are used in hydropower, building materials, highways, urban construction and other industries.
In many gravel yards with low requirements on the particle size of crushed stone, users are willing to use jaw crusher and cone crusher to set up production lines. Because the jaw crusher and cone crusher both belong to the lamination principle, the wear of wear-resistant parts is relatively small, and the production cost is relatively low. However, due to the lamination principle, the crushed stone will not have a good particle size, the content of needle shaped and flaky crushed stone is relatively high, and the internal cracks of the crushed stone are relatively serious, which is unacceptable to the building. Therefore, the market price is cheaper than the stone crushed by the impact crusher.
The good feature of the impact crusher is that it can produce fine grained crushed stone, which has the dual performance of crushing and shaping. The fine grained crushed stone can add better stress performance to buildings, and has a higher price in the market. Of course, the wear cost of wearing parts of impact crusher is higher than that of fine jaw crusher and cone crusher with the same output. Therefore, the impact crusher is mainly used in the crushed stone crushing yard for construction to provide good granular crushed stone for highways, railways, airports, docks and high-rise buildings.
If the market has certain requirements for the grain size of finished crushed stone, and users want to reduce the use cost of vulnerable parts, coarse jaw crusher, fine jaw crusher or cone crusher can be considered as the first and second breaking, and the impact crusher is placed at the third crushing position, mainly for the purpose of shaping. This not only reduces the abrasion degree of the impact crusher, but also can obtain the crushed stone with good grain size.
