secondary crushed ore screening
ore is crushed from 10 cm to less than 1 2 cm size for this purpose jaw, cone or roll crushers are used. These secondary crushers consume more power than primary crushers. iii. Tertiary Crushing (fine crushing) By tertiary crushers ore is crushed from 1 2 cm to less than 0.5 cm. Short head cone Some stone crushing plants produce manufactured sand. This is a small-sized rock product with a maximum size of 0.50 centimeters (3/16 th inch). Crushed stone from the tertiary sizing screen is sized in a vibrating inclined screen (fines screen) with relatively small mesh sizes. Figure 11.19.2-1
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