Difference between cement mill and beneficiation mill on speed

Difference between cement mill and beneficiation Mill on speed

In recent years, many industrial departments in the Ball Mill for fine grinding made significant progress.The results show a wide variety of ball mill.Its appearance will lead a new industry chain development, the rapid occupation of the domestic and foreign markets.
Cement quality, from the grinding process, grinding and crushing and choose powder efficiency has no direct relationship.China’s cement quality inspection index in general there are two: Cement sieve residual value and specific surface area.But in recent years the international cement quality inspection indicator is the cement particle gradation, and, this one index than cement sieve residual value and the specific surface area can reflect the real situation of cement quality.To this point, have caused our cement workers commensurate with face.In general, cement particles, the particles smaller than 3 μm hydration faster, not conducive to the long-term strength of cement, recommended that no more than 10%; more than 65 μm particles essentially no activity, preferably without; 1624 m particles the highest activity.Some cement plant in the production of limestone.Limestone is not active, purely as a filler, but can improve the finished cement particle size gradation.
Ore dressing mill speed directly affects the movement of the ball mill and iron ore and iron ore grinding process.In different speed, cylinder body steel and iron ore movement conditions are different, when low speed, grinding ball and iron ore with the inner wall of the cylinder is increased, when the grinding balls and iron ore angle equal to or greater than the natural inclination, slide down along the bevel, cannot form adequate gap, ball mill on the iron ore grinding effects is very small, the efficiency is very low for ball mill.When the cylinder is in the two rotational speed between a given speed, ball was brought to a certain height along a parabola falls, on the cylinder bottom impact action of the largest iron ore, grinding efficiency is highest, the speed is called the optimum operating speed.If the cylinder speed is very high, due to the effect of centrifugal force, so that the iron ore and the grinding ball is no longer separated from the cylinder wall, and with its rotating together, when the ball mill for iron ore has no impact, the grinding efficiency is very low.Wet ball mill level directly influences the speed, grinding ball and iron ore movement status and titanium iron ore grinding process.So should maintain the optimal speed of ball mill, the mill in grinding ball has a maximum lift height, when the ball has the greatest impact, ball mill can play the best results.The actual working speed of ball mill, the gear ratio and other conditions, not just to achieve the best speed, but are relatively close.
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The principle and characteristics of the Overflow Type Ball Mill The mass fraction of the ball mill processing operations.