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Improve Ball mill grinding fineness skills

Grinding costs are part of the higher concentration plant, how to effectively and reasonably

control the grinding fineness dressing directly reduce costs, increase economic benefit of

important factors. Because the grinding fineness, is one of the many factors affecting

mineral indicators, size of grinding fineness directly affect the level of concentrate grade

and recovery of the product. Therefore, the Ball Mill technical operation is extremely important.
We must first fully understand the grinding fineness factor. To sum up, grinding fineness

impact factors: ore hardness, crushing grain size, lattice screen mesh, to the ore size,

mill type, number of steel ball, ball size ratio, ball mill liner wear, ball speed,

classifier speed, grading machine spindle lifting height, grading blade wear, the overflow

weir level classification, classifier under the opening height, opening size of the next

classifier, classifier on the opening height, grading machine on the opening size, flow back

to office the size of sand, water ball size, ball row flush the mouth size of mine.
Understanding of all these factors in the production operation, we have to conduct a search

of a find the best adjustment factor.Ore ore hardness: different ores, its hardness is not

the same, this factor is relative to the same ore is fixed and can not be adjusted. But in

production, technical requirements in the beneficiation process under the premise can be

reasonable with mine, even as much as possible so that the size of ore, bulk, powder ore

ratio of stable and reasonable. In addition to the mine office at the mill belt, belt wear

and tear may be missed as time deposits, leave out the majority of cases, powder ore, ore to

be missed this part of the supplement added to the ball as much as possible in a timely

manner, if the long stack, focused add, will result in ore milled to a uniform, causing the

production of instability. Particularly difficult dressing, often the nature of powder

minerals and mineral blocks are differentGrading machine spindle lifting height, also affect

the amount of sand and back to grinding fineness is an important factor. Normal production

requirements, grading machine spindle into place. Some workers in the Concentrator milling

equipment maintenance, due to the sands grading machine does not clean up, set in a long

time under Shen, Shen sludge more real, the delegation of grading machine spindle, because

no careful not to spindle put down completely, resulting in the amount of sand back to less

than normal. Also do not drop spindle axis may also be due to long time to clean oil, so it

should be noted during the operation.Broken grain size, lattice screen sieve adjustment

concerns the construction, milling work on the broken system must be monitored, if the mill

to the mine in production in the grain size changes, must be immediately reflected in the

crushing plant. Eventually require the more detailed the better granularity.

About the Author

The resources come from shanghai zenith company

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