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1).
The crude ore first proceed the preliminary broken
through jaw crusher, generally divide into coarse
crushing and fine crushing two stages; 2) the
appropriate stone size(10-20 mm) will be get from
the last process, then will be evenly feed into
the ball mill through the elevator and mining
feeder, the ball mill break and grind the ore
into the fine ore; then feed into the spiral classifier,
3) due to the gravity differences of the solid
particles, their deposition rate will be different
too, using this theory, the spiral classifier
will wash and classify the fine ore particles,
4) the washed and classified fine ore particles
will be sent to the magnetic separator, making
use of minerals susceptibility differences, magnetic
separator will separate the magnetic minerals
from the fine ore particles mixers by the magnetic
force and mechanical force, and get 65% iron ore
concentrate.
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