River stones are mainly river red stones or materials, These river mixed aggregates are mined, and then transported for the stone quarry for crushing. River stone crushing plant is the major crushing unit to process river stones like cobble rocks, pebble, sand & gravel, silica etc. It calls for crushing, screening and washing process.
In coarse crushing unit, Jaw Crusher is mainly used for primary crushing. It's crushing ratio is big, and can make big river stones into small dust. In medium crushing process, Impact Crusher or cone crusher are used. Cone crusher is mainly used in fine crushing unit. Vibrating screen is the screening machine in stone crushing plant. If you want to get artifical sand, you must add VSI series Vertical Shaft Crusher after medium crushing process.