In respect of rotating speed control, the high-efficiency production is very
limited. Meanwhile, only if you control the rotating speed well can you control
the consumption of steel ball.
When the rotating speed of ball mill is high, the height the ball raised is
high. The ball will get away from the barrel when the ball rises to certain
height, and falls along the parabolic path. There is comparatively large impact
force on drop point. When the ore is crushed by the impact force, the grinding
effect is highest.
On the other hand in high speed, the ball will be lifted highly. After the
ball is lifted to a certain height, it will separate from the barrel and falls
along a parabolic trajectory in throwing working state. The ball will gain a
great impact at the drop point. The ore is mainly ground by the impact, and the
grinding efficiency is high.
When the rotating speed of ball mill exceeds a certain speed (with much
higher speed), the steel ball will rotate with the barrel and won't fall down,
in a condition of centrifugal movement. There is no impact force, so the
grinding function is much less, and the ball mill stop grinding. The ball mill
rotating speed is called critical speed when the outmost layer balls just rotate
with the barrel and don't fall.
So in the production of used ball mill, to control the critical rotating
speed reasonably can realize the effective control on the steel ball
consumption. Meanwhile the lower on ball consumption will decrease the ore
grinding production cost. Comprehensively considering, control the ball mill
rotating speed perfectly will greatly improve the ball mill production
efficiency and decrease the energy consumption of ball mill specific
yield.Henan Hongxing Mining Machinery Co., Ltd is the professional
manufacturer of complete sets of mining machinery, for example, mobile crusher Welcome all of you
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