The granite is a kind of material which is hard to be crushed, but it is usually easier to be crushed than the basalt. Although the hardness of the granite is high, it has a certain fragility. Therefore, on the aspect of the design of the crushing process, the process can be relatively flexible designed. If the customers' market price has advantage, you can use two-stage crushing process scheme. However, from the long-term production point of view, the three-stage crushing process is still the most effective method which can reduce production costs.
If the customers' market has no high requirements of the shape of the finished stones, you can use the solution of the two-stage jaw crusher for production. This configuration needs the minimum investment and the repair and maintenance is the most simple. The production cost is the most economical in all programs. However, the disadvantage of this program is the stone's grain type is relatively poor. There is a higher proportion of elongated material. The competitiveness of the stone on the market is not high, because the high-grade buildings need the stone with the excellent grain shape.
In order to improve the grain shape of the stone (multi-edged cube), you can use the jaw crusher and the process configuration of the impact crusher. The investment cost of this configuration is a little higher than that of the above two-stage jaw crusher, but the grain type produced by this kind of configuration is very good. The granite is difficult to be broken, the wear and tear of the wear parts of the impact crusher is relatively high. However, long-term production cost is considerable. Since the granite has a brittle property, such a configuration is also an acceptable solution.
In order to get excellent grain type products and reduce the production costs at the same time, then we need to add a laminated crusher between the jaw crusher and the impact crusher. For example, we can use fine jaw crusher and the cone crusher. This configuration can make the crushing work completed by the primary crushing and the secondary crushing and finally integer crushing by the impact crusher. This configuration process can greatly reduce the reverts formed by screening. Too high ration of the reverts in a production line will make the final crusher increase excessive and repeated crushing work, which will make the wear of the wear parts greatly increase correspondingly.
Specific process configuration should be specifically analysized according to the actual situation of the site. Welcome to visit Hongxing Mining Machinery.