Limestone, namely bluestone, is a medium hard limestone with low silicon content and low abrasiveness, which is easy to be broken, so the production cost is low. Generally, as long as simple process configuration and equipment selection are adopted, the processing mode of jaw crusher+impact crusher can well crush the stone. Limestone is rich in resources, which can meet the requirements of various industrial departments by simple ore washing.
The processing process of limestone mainly includes limestone crushing and grading, followed by the production of quicklime and hydrated lime, and the final precipitation of calcium carbonate and carbon dioxide. Limestone is generally processed by dry crushing. Limestone used for metallurgy and roads can be crushed and screened. If fine powder products are produced, the ore can be directly grinded after being crushed by jaw crusher, impact crusher or cone crusher.
The use of impact crusher for limestone crushing will produce more powder. Therefore, if the customer does not have high requirements on the particle size of the stone, the two-stage jaw crusher can be used to reduce the proportion of powder output and reduce the investment cost. If sand making is required, vertical shaft impact type sand making machine is required due to the high requirements of users for grain size. For the limestone sand production line with small capacity, the VSI sand machine can be directly used for sand production.
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