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why do people use a ball mill to grind mineral ores and stones

why do people use a ball mill to grind mineral ores and stones

The ball mill is very similar to the sag mill, except it has a larger proportion of steel balls to assist in the grinding process following grinding in the ball mill, the material is returned via the sump to the secondary hydrocyclone for resizing the trash screen removes wood from the old mine workings that may have found its

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    Jan , the grinding circuit is therefore used to slurry the ore, and may include a sag mill or ball mill ores are typically ground to m prior to the whole ore being leached the effect of declining ore grades on embodied energy for pressure acid leaching of nickel laterite ore is shown in fig and table , table

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    Jan , for grinding circuits where the feed to a ball mill is sent directly to the classifier and the cyclone underflow feeds the ball mill see figure , a question arises as to whether this practice will alter the ball mill work index bw i of the material being ground and hence have an impact on the energy used in the mill for grinding

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