Mineral Crushing machinery and crushing operation
Sinonine know that as the ore crushing is performed in stages, crushing may be divided into primary, secondary, tertiary and quaternary stages based on the particle size. Correspondingly, the crushers can be classified into five groups according to the size of the product they produce. ---- Primary Crushers: Jaw crusher , Gyratory crusher. ----Secondary Crushers: Reduction gyratory, Cone crusher , Rolls crusher. ---- Tertiary Crushers: Short-head cone crusher. ----Fine Crushers: Impact crushers. ----Special Crushers: Bradford Breaker, Toothed Roll crusher. Lumps of run-of-mine ore usually of 1 m size is reduced to 100–200 mm size in heavy duty primary crushers. The usual size of feed to secondary crushers is 600 mm and the product is usually 10–100 mm size. In tertiary crushers, particles of 250 mm size are reduced to 3–25 mm size. Fine crushers reduce the coarse particle to fine, even to 200 mesh in some cases. Special crushers are designed for specific ores, for exampl...