The aggregate crushing process is divided into four stages: coarse crushing, medium fine crushing, sand making and screening.

• 1

  The first stage: coarse crushing

  The stone blasted from the mountain is fed uniformly by the vibrating feeder through the silo and transported to the jaw crusher for coarse crushing.

• 2

  The second stage: medium fine crushing

  The coarsely crushed materials are screened by vibrating screen and then conveyed by belt conveyor to impact crusher or cone crusher for medium crushing. The crushed stones are conveyed to the vibrating screen through a belt conveyor to sieve out different specifications of stones. The stones that meet the requirements of the customer's particle size are conveyed to the finished product pile through the belt conveyor. The impact crusher or cone crusher crushes again, forming a closed circuit cycle.

• 3

  The third stage: sand making

  The crushed material is larger than the size of the two-layer screen, and the stone is conveyed to the sand maker through the belt conveyor for fine crushing and shaping.

• 4

  The fourth stage: screening

  The finely crushed and reshaped materials are screened by circular vibrating screen for coarse sand, medium sand and fine sand.

Note: For the sand powder with strict requirements, a sand washing machine can be added behind the fine sand. The waste water discharged from the sand washing machine can be recovered by the fine sand recycling device. On the one hand, it can reduce environmental pollution, and on the other hand, it can increase sand production.

FEATURES OF AGGREGATE PRODUCTION PLANT

Stone production line has the features of high automation, high production efficiency, low operation cost, high output, and high yield; particle size of discharging material can be adjusted, crushing rate is high, and energy saving can be achieved; product grain is uniform with excellent shape, meeting the national standard of aggregate for highway.