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Limestone materials are easily broken, one is the hardness is low (4 to 5), the other is very low silicon content. Therefore, limestone as raw materials stone quarry production costs are relatively much lower.
Limestone is the important industry and construction raw material, in which it is usually in small size. Limestone is the raw materials of lime, concrete, glass, calcium carbide and can be widely used in steel metallurgy, paper making, rubber, plastic, fodder, tooth paste and make up industry, etc.Yifan design the high performance limestone crushing plant for limestone crushing solution.
As crushing industry developed, there are several kinds of limestone crushing plants like jaw limestone crusher, cone crusher, impact crusher, hammer crusher and limestone mobile crusher (like limestone mobile jaw crusher).
Limestone crushing process
For the Limestone 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 +cone crusher +impact crusher(optional)+vibrating screen +belt conveying system +control system
In the above proposals, the main difference is 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 has not request of the stone shape, users prefer to use fineness jaw crusher, or cone crusher as the secondary crusher. Because for high hardness stones, the quick wear parts cost of fineness crusher/cone crusher is lower than that of impact crusher.
For jaw crusher and cone crusher, the working principle is plate pressing, so the percentage of stones with flaky shape, internal cracks is high.
For impact crusher, it has the functions of crushing and shaping, can make very good cubic shape; the stone materials are mainly used for highway, water conservancy, airport, civil construction etc. The market prices of stones made by impact crusher is higher than that by fineness jaw crusher or compound cone crusher; the quick wear parts cost of impact crusher is also high for high hardness stones.
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