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Sand shale is a mixture of sandstone and shale, a combination of sedimentary and metamorphic rocks. Sandstone contains a large amount of silica, high hardness, and is more difficult to break. Shale is a layered sedimentary rock, which is formed by weathered clastic rock under long-term pressure environment, and is relatively easy to crush.
Sand shale treatments are quite abundant and can be seen in many places. How to choose crushing equipment when building a stone factory with sand and shale as raw material?
Commonly used crushing equipment includes jaw crusher, impact crusher, cone crusher, impact crusher, hammer crusher, roller crusher, compound crusher, heavy hammer crusher, box hammer crusher, fine crusher However, the range of equipment that can be used for sand and shale crushing is actually very narrow, because the sandstone has high hardness. That is to use the cone crusher scheme, that is, the main engine combination of vibrating feeder, jaw crusher, cone crusher and vibrating screen, which can overcome the hardness problem of sand and shale.
But to realize the crushing operation of the sand and shale rock plant is not only the problem of rock hardness, but also the problem of sand and stone grain shape.
For the grain shape of the stone, the optimization that can be done is to increase the equipment that is conducive to forming, including the use of multi-cylinder hydraulic cone crushers and the addition of impact crushers. Of course, if the local material supply requirements are not so strict, the HST single-cylinder hydraulic cone crusher can be used, which has the characteristics of large feeding, large crushing ratio, high production efficiency, automatic iron removal, light weight and convenient maintenance.
Nowadays, environmental protection and energy saving have become a buzzword. Sand and shale crushed stone production lines are also pursuing environmental protection and energy saving. Many large-scale sand and gravel manufacturers have also begun to require the environmental protection performance of crushed stone production lines, including factory production and dust-free production. These ideas are all It’s good and encouraging.