Analysis of Ore milling equipment Grinding Principle

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Analysis of Ore milling equipment Grinding Principle

Příspěvekod crushermachine169 » 13 lis 2017 04:29

Ore milling equipment grinding operations are carried out in simplified Ore milling equipment, the barrel is filled with grinding media. Grinding media with the rotation of the Ore milling equipment cylinder was brought to a certain height, due to the weight of the media and falling, installed in the cylinder of the ore by the impact of the media; the other hand, grinding media in the cylinder Along the axis of the cylinder revolution and rotation between the grinding media and its contact with the cylinder and the resulting ore extrusion and grinding force, so that the ore grinding.
Due to the friction between the Ore milling equipment Ore milling equipment and the Ore milling equipment barrel, when the barrel rotates, the ball is brought up and rises to a certain height. Due to the gravity of the ball itself, the ball finally falls along a certain track. Balls in the area (the steel balls are carried) are subject to two kinds of forces: one is the force applied to the steel ball in the direction of the tangential line when the cylinder rotates, and the other is a steel ball that is diametrically opposite to the steel ball Forces of opposite forces, this force is due to the weight of the ball itself and caused by sliding down.
Therefore, the above two forces, for any one ball will form a couple. And because the Ore milling equipment ball is squeezed in the middle of the cylinder and the adjacent ball, so even between the ball will have different sizes of friction between the ball resistance, so each layer of steel ball with the cylinder axis for Orbital movement (of course, the layers of the ball does not have the same rate with the cylinder, while the layers of steel ball revolution speed is not the same). In the area from falling on the fall ball, so in the area of ​​ore within the cylinder strong impact crushing effect. Due to the impact of falling steel ball, resulting in the region of the ball has a very strong and disorderly movement.
These include:
(1) a strong rolling of the ball above the dotted line;
(2) rapid movement of the ball along the point line;
(3) the ball below the dotted line with the mill barrel rapid movement;
(4) Each layer of steel ball impact between each other.
It can be seen that the area is the place where grinding is the most intense. Most of the coarse ore is ground here.
crushermachine169
 
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