The design of a stone crushing production lines are usually decided by a few factors:
1) recycleables to be crushed
2) The hardness, number of Si, moisture number of the recycleables
3) The average size the recycleables before getting into the crushing system
4)Requested product sizes, percentage of the sizes, as well as their usage
5) hour capacity of the crushing line
For your River stone crushing production lines: 30-50tph, 50-80tph, 80-120tph, 120-200tph, 200-300tph, 300-400tph, 400-500tph, we here recommend three proposals:
Proposal 1: vibrating feeder +primary jaw crusher +impact crusher +vibrating screen +belt conveying system +control system
Proposal 2: vibrating feeder +primary jaw crusher +fineness jaw crusher +impact crusher(optional)+vibrating screen +belt conveying system +control system
Proposal 3: vibrating feeder +primary jaw crusher +Compound cone crusher +impact crusher(optional)+vibrating screen +belt conveying system +control system
Within the above proposals, the main difference may be the secondary crusher: using impact crusher (hammer crushing principle), or using fineness jaw crusher(plate pressing principle), or Compound cone crusher(plate pressing principle).
If the local market hasn’t request of the stone shape, users choose to use fineness jaw crusher, or Compound cone crusher because the secondary crusher. Because for high hardness stones, the short wear parts price of fineness crusher/cone crusher is leaner compared to impact crusher.
For jaw crusher and compound cone crusher, the running principle is plate pressing, and so the percentage of stones with flaky shape, internal cracks is high.
For impact crusher, it’s the functions of crushing and shaping, could make very good cubic shape; the stone materials are generally useful for highway, water conservancy, airport, civil construction etc. Industry prices of stones made by impact crusher is greater than that by fineness jaw crusher or compound cone crusher; the fast wear parts expense of impact crusher is also high for high hardness stones.
If the market has request for the stone shape, and also the users want to reduce the quick wear parts cost. Ideas recommend firstly use primary jaw crusher + fineness jaw crusher/compound cone crusher because the primary and secondary crushers, consider the impact crusher as the tertiary crusher to shaping the stones. This proposal may be adopted by many users, and became workable.
