The size of the ball with the main motor current has a close relationship. Experienced mill miners in the ball mill operation, all the time to observe the ball mill the current changes.
No change to the amount of ore in the mill, and in good working order, in general, the current the higher the ball mill ball more volume; the contrary, the less.
The right the Φ3600 4000 wet grid ball mill of the long-term experimental observation that the mill supporting synchronous motor voltage is 6000 V AC frequency of 50 Hz, a power of 1100 kilowatts, rated current is 125A. Motor idling current is 0; motor driven ball mill empty load running current 25A; when the amount of ore milled to 60t / h of ball 60t, synchronous machine current is 85A; when the ball mill to the mine the same amount, the ball increase 5t, the current increases 4A; 5t / h when the amount of ore to increase the ball the same amount, the current increases 5A.
Red Star to the mill to add specific methods:
New installation or overhaul ball mill and ball mill liner: newly installed a running-in process. The first to add a ball accounted for 80% of the total ball of the ball mill. Different types of ball mill the number of ball, the ball not the same size ratio. Such as MQG1500 × 3000 ball mill the maximum amount of ball 9.5 ~ 10t, the first loaded ball 7.5 8t, the remaining steel ball until ball mill equipment car 3 to 4 days plus; ball weight ratio of Φ100 mm accounted for 40% , Φ80 mm accounted for 30%, Φ60 mm accounted for 15% and, Φ40mm accounted for the 15%. MQG3600 × 4000 ball mill maximum amount of ball 70t, the first installed 56t remaining 3 to 4 days plus, the proportion of ball Φ120 mm accounted for 40% of Φ100 mm accounted for 30%, Φ80 mm accounted for 15%, Φ60 mm, accounting for 15%. Generally speaking, the ball mill in more than 2500 mm in diameter, ball size and proportion Φ120 mm accounted for 40% of Φ100 mm accounted for 30% Φ80 mm accounted for 15% of Φ60 mm accounted for 15%. ; For the mill diameter of less than 2,500 mm, the first ball is Φ100 mm accounted for 40%, Φ80 mm accounted for 30% of Φ60 mm accounted for 15%, Φ40mm accounted for the 15%.
??? Normal operation of mineral processing equipment, ball mill, additional ball diameter as follows: ball mill of more than 2500 mm in diameter, additional ball for Φ120 mm; ball mill diameter less than 2500 mm, additional ball Φ100mm.
According to the quality of steel balls, under normal circumstances for every one ton of ore additional 0.8 to 1.8 kg.

Source Red Star mill network http://www.findxk.com/ (please specify source)
http://www.findxk.com/yc.htm dressing shaker
http://www.findxk.com/zlj.htm disc granulator
http://www.findxk.com/jbt.htm mixing drum
http://www.findxk.com/gts.htm drum screen

palabras clave: Ball, ball mill linings, grid ball mill, synchronous motor, synchronous machine,