Disk Crusher Is Outstanding In Superfine Crushing

A crusher is a machine designed to reduce large rocks into smaller rocks

, gravel, or rock dust. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.

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. Additionally rock breakers are typically located next to a crusher to reduce oversize material too large for a crusher. Crushers are used to reduce particle size enough so that the material can be processed into finer particles in a grinder. A typical processing line 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 domestic, rotating disk crusher has successfully applied to superfine gold crushing and gold addressing factories. It remains to be seen for iron ore application. At present, the biggest medium and fine crushing cone crushers in the world are only two types, which are symons cone crusher and 3000 series produced in former Soviet Union. These crushers are developed by increasing size on the basis of traditional crushers. There are no much changes in the work principle and main structure. But the tapered broken pop eccentric parts changed a little. In addition, crusher precession angle reduced from the original 2 degrees to 1.6 and 1.5 degrees. Swing times are also correspondingly increased of the fixed cone. So, it increases the crushing force and reduces eccentric parts clearance. Crushing machines modified as follows: It forms crushing cavity between movable cone liner and fixed cone liner. Fixed cone is installed in the upper rack, and movable cone bearing is supported by spherical bearings. Under the spherical bearing seat is a set of circular spring, which installed inside the spindle. The lower part of spindle is fixed on the bottom of rack, the upper part is matched with eccentric sleeve.

The gap between movable cone and a rack is full of grease, which uses labyrinth seal. We use hand wheel to adjust spherical bearing movements through the lower bevel gear. We read discharge opening width and vertical position of the cone with pointers and dials.

Stone crusher plant : http://www.hxjq-crushers.com/26.htm

Ball mill : http://www.hxjq-crushers.com/4.htm

by: libby

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