Dolomite process

Dolomite mining process

The mining process at dolomite mine is based on conventional drilling and blasting followed by loading and trasportation of ore and waste by shovel and truck. Two types of ore are selectively mined. "On-grade" ore is of such good grade that it needs no further treatment than crushing,washing and screening before being shipped. The second type of ore can be described as "off-grade" or low-grade ore, and this material is upgraded in a jig plant, The run-of-mine ore is processed through a crushing,washing and screening plant. Crushing consists of three different stages, namely primary, secondary and tertiary crushing. Washing and Screening take place between each crushing step. Washing facilitates sorting and is often performed after first crushing to remove slimes from the ore particles. Screening consists of the selection of particular sore fractions suitable to enter the next crushing stage.

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