1. Feeding stage: feed raw materials into the cavity of the crusher uniformly and continuously by vibrating feeder, and pretreat stones with more impurities to avoid equipment blockage during crushing.
2. Crushing stage: multiple crushers are used together to realize coarse, medium and fine crushing of crushers. For example, jaw crusher suitable for coarse crushing, responsible for secondary medium-fine cone crushing and anti-crushing, hammer crusher with large crushing ratio, etc. , and can choose equipment according to production requirements.
3. Sand making stage: the process of further processing the stone. Through the sand-making and molding treatment of sand-making machine, the gravel aggregate that meets the standard of building sand is obtained, which has wider application and higher economic value.
4. Screening stage: the processed materials are screened by a vibrating screen to obtain sand and gravel aggregates with different particle sizes, with high screening efficiency and high productivity.