River pebble sand making machine
River pebble is a kind of pure natural stone material, which is taken from the sand and stone mountain produced by the ancient riverbed uplift after experiencing the crustal movement thousands of years ago, experiencing the constant extrusion and friction in the process of mountain flood impact and water transport. In the course of tens of thousands of years of vicissitudes, they have suffered the movement of waves and water, gravel collision friction lost irregular edges and corners, and sand was buried deep underground silent for millions of years. The main chemical composition of river pebbles is silica, the quality is hard, the color is bright and simple, with the natural stone characteristics of compression, wear resistance and corrosion resistance, is an ideal green building material.
Introduction To Materials
Material Handling Process
The sand making process of river pebble / cobble can be divided into three stages: coarse crushing and fine crushing, sand preparation screening and sand washing recovery.
The first stage: coarse and fine
The materials are evenly fed by the vibrating feeder through the silo and transported to the jaw crusher for coarse crushing. After screening by the vibrating screen, the coarse crushed materials are transported to the cone crusher for medium and fine crushing by the belt conveyor.
The second stage: sand screening
The crushed materials are transported by belt conveyor to the sand making machine for fine crushing, and the finely crushed materials are screened by circular vibrating screen for coarse sand, medium sand and fine sand.
Stage 3: sand washing recovery
For sand with strict powder content requirements, a sand washing machine can be added behind the fine sand, and the sewage discharged by the sand washing machine can be recycled by the fine sand recovery device. On the one hand, the environmental pollution can be reduced, and on the other hand, the sand production can be increased.