The crushing processing of basalt and granite materials generally selects two-stage crushing of jaw crusher and impact crusher. However, with the improvement of national requirements for stone particle size in recent years, three-stage crushing is selected as much as possible, that is, a hydraulic cone crusher is added to reduce needle flakes. On the surface, adding one more equipment increases the production cost, but for the long-term operation of the quarry, the production cost reduced by crushing the stone with high hardness and high silicon content through three-stage crushing is very considerable.

Sand stone materials are generally produced by ore, such as granite, basalt, limestone, pebbles, pebbles, calcite, etc., where granite, basalt is highway railway and other large projects commonly used materials. Basalt belongs to extrusive rock, which is more related to volcanic eruption. In the process of magma flow, it is formed by cooling and solidification. The main features are pores, flow patterns, etc., hard and tough. Granite belongs to intrusive rock. Because it does not eject from the surface and approaches the surface underground, the movement speed is slow and the temperature decreases slowly, so the crystallization is obvious, hard and brittle. However, what they have in common is that granite and basalt belong to materials with high hardness and high silicon content, which are difficult to break or have high crushing cost in actual crushing operations.

The following is a typical granite, basalt processing crushing scheme :

1.Vibrating feeder + jaw crusher + impact crusher + vibrating screen + conveyor

2.Vibrating feeder + jaw crusher + fine jaw crusher + vibrating screen + conveyor

3.Vibrating feeder + jaw crusher + fine jaw crusher + impact crusher + vibrating screen + conveyor

4.Vibrating feeder + jaw crusher + impact crusher + hydraulic cone crusher + vibrating screen + conveyor