Industrial use of crusher
In industry, crushers are machines which use a metal surface to break or compress materials. Mining operations use crushers, commonly classified by the degree to which they fragment the starting material, with primary and secondary crushers handling coarse materials, and tertiary and quaternary crushers reducing ore particles to finer gradations. Each crusher is designed to work with a certain maximum size of raw material, and often delivers its output to a screening machine which sorts and directs the product for further processing. Typically, crushing stages are followed by milling stages if the materials need to be further reduced. Crushers are used to reduce particle size enough so that the material can be processed into finer particles in a grinder. A typical circuit at a mine might consist of a crusher followed by a SAG mill followed by a ball mill. In this context, the SAG mill and ball mill are considered grinders rather than crushers.
In operation, the raw material (of various sizes) is usually delivered to the primary crusher's hopper by dump trucks, excavators or wheeled front-end loaders. A feeder device such as a conveyor or vibrating grid controls the rate at which this material enters the crusher, and often contains a preliminary screening device which allows smaller material to bypass the crusher itself, thus improving efficiency. Primary crushing reduces the large pieces to a size which can be handled by the downstream machinery.
Some crushers are mobile and can crush rocks (as large as 16 inches), concrete and asphalt into material as it is driven over material on road surface, thus removing the method of hauling oversized material to a stationary crusher and back to road surface. They are used, for example in road constructions.
Down page:Description of various kilns
- Introduction of gold trommel machine
- Mill balls and water influence the effic
- Fault handling of jaw crusher
- process of Stone Aggregates produced by
- How to maintain ball mill with the lubri
- China mining machinery need technology i
- How to choose jaw crusher--let me help y
- Domestic Mining Machinery Trends brief a
- The future development trends and prospe
- The development of ball miller feeding
- Songling advise for the purchase skills
- Mining mechanization hot ascension of Mi
- The property of Flotation Machine
- The Most Important Factor in the Process
- Obvious advantages of ball mill
- Environmental Protection Idea must be st
- The Benefits of central bank cutting int
- Stone production industry promote the c
- The future of the drying equipment in Ch
- Rock Crusher Maintenance