The ball mill working principle

The ball mill working principle

When the ball mill cylinder constant rotation, driven by the grinding barrel moving equipment, so that the material impact and grinding and grinding. Study grinding motion for the simplification of the understanding of the factors that influence the effectiveness of the real master role abrasive material, and to improve the grinding efficiency, reduce the milling time to determine the operating parameters (speed, power, load capacity of the ball mill machine, etc. ), as well as stress analysis and strength calculations and other works of great practical significance.

The ball mill working principle

Experimental observation of a transparent view of a ball mill model, grinders movement is more complex, with increased relative sliding movement of the cylinder wall, grinding and cylinder wall, and the lowering movement. Cylinder at different speeds, moving the grinding body can be simplified into three basic forms: When the speed is low, by grinding up to a certain height and English friction, grinding the surface layer is greater than the natural angle of repose, scroll down mill down diarrhea, mainly in the way of material, grinding, polishing, because the kinetic energy of the body is not, therefore carom force Dan insufficient; high speed when the cylinder is attached to the polishing posted centrifugal force of inertia of the cylinder wall, together with the cylinder rotation, the material no knocking effects, mainly by grinding; tube at an appropriate speed, up to a certain height with the grinding and polishing backward rotating tub, and grinding and polishing material from the impact. In the third movement of the grinding form below actually seek trajectory analysis, and the duty cycle represented by the formula. In his discussion of practical problems due to the cylinder with a material, the problem is a relatively simple process. The following assumptions, practice, when cf.

1. When the ball to the motion under given operating conditions. Grinding interference, circular trajectory almost closed curve layer;

2. Part of this curve is reduced to the center line of the circular arc, the other part of the parabola;

3. The grinding and polishing throw ignored initial speed equivalent to a circle, the circumference of the slide relative to the cylinder wall abrasives which speed;

4. omitted material grinding motion.

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