When a grinding product has a particle size of 0.5 to 3 mm, a rod grinding process should be adopted. When the particle size of the grinding product is less than 0.074mm and the content is less than or equal to 70%, a ball milling process should be used. When the particle size of the grinding product is less than 0.074mm and the content is more than 70%, a two-stage grinding process should be adopted. Small beneficiation plant, grinding the mineral particle size less than 0.074mm, when the content is less than 75%, should be used for some grinding process.
Note: The lower limit of the particle size of the grinding product can be reduced to 0.3mm during re-election.
2 useful minerals with uneven grain size and easy to over-grind ore, rod mill or stage grinding process should be used.
3 ores contain more mud, water or clay and plastic clay , and it is difficult to use conventional grinding and washing methods, or when the ore is affected by the presence of iron ions in the pulp, self-grinding and semi-milling should be used. Process.
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