2010年10月13日星期三

Proper use of ball mill

Proper use of ball mill: ball diameter, according to the size of the ore hardness, size of ore into the mill, ball hardness (quality), ball speed and other factors to determine.
Model determined when the ball mill, ball mill will be the speed.
Typically, the mill installed a new one by running the process, the process in the run-in, first add the amount of ball, accounting for the largest ball mill for 80%, the ratio of steel ball can add a ball size (Φ120 mm, Φ100 mm, Φ80 mm, Φ60 mm, Φ40 mm) size added.
Proper use of ball mill: ball mill switched to normal, the addition of steel balls each class by 3:4:3 (¢ 120 mm for the 3, ¢ 100 mm for the 4, ¢ 80 mm 3) added. Note: the addition of a small steel ball plus the ball with only the first use. Because steel ball mill with steel balls during normal operation, ball and ores, steel ball and the ball mill liner wear between the reasonable observation, increased wear will make a large ball of small (as in the ball mill), the milling small ball. Therefore, under normal circumstances usually do not need to add a small ball. Add a small ball size is not useful minerals in the monomer dissociation, when the grinding fineness of less than a flotation machine requirements, can add a small amount of the ball.
Ball size ratio: the ratio of different ball types are different. 2500 mm in diameter, the following ball, add the ball size is ¢ 100 mm, ¢ 80 mm, ¢ 60 mm. More than 2,500 mm diameter ball mill, add ¢ 120 mm ball size, ¢ 100 mm, ¢ 80 mm. Ball mill must operate in the correct method to use.

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