River pebble production line

Equipment configuration

Dmc1000 two cone crushers

Four dvsi75 sand making machines

Six 2yk-1230 vibrating screens

Four xsd3016 sand washing machines
technological process

The raw materials of river pebbles are sent to the raw material warehouse of the site by the sand dredger through the belt conveyor, and then they are transferred to dhp200 multi cylinder hydraulic cone crusher for front-end crushing. After crushing and screening, the materials less than 40mm are sent to dvsi75 for sand making, and the materials over 40mm are returned to the cone for further crushing. The materials from the sand making machine are screened by xsd3016 vibrating screen, and the machine-made sand less than 5mm is sent to xsd3016 sand washer for cleaning Finished product area. The sand making machine with more than 5 mm unqualified material will continue to return.

Sand making technology of river pebble
The reasonable sand making technology of river pebble can not ignore the production cost of production line while considering the investment cost of crushing project. Considering that the high hardness of river pebble will inevitably cause high loss of wear-resistant parts such as jaw plate, plate hammer and impact plate, we recommend to select crushing equipment with lamination principle in process design to reduce wear-resistant parts loss. The typical laminating equipment configuration is two-stage jaw fracture or jawbone plus conic fracture. If the customer has higher requirements for the final stone grain shape, we suggest to configure a sand making machine for shaping and crushing, thus forming a three-stage crushing process configuration. The third stage crushing will inevitably lead to the increase of investment cost of the project, but for the long-term operation of the sand making plant, the three-stage crushing can reduce the production cost significantly.

For stone materials that are difficult to be broken, such as river pebbles, the two-stage crushing process of jaw breaking and impact breaking can also be adopted. However, this will inevitably lead to the problems of high consumption of hammer, short service life and high proportion of reverse materials, which in fact increases the production cost.


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