Actual production, according to media movement theory to determine the appropriate operating speed milling machines are the critical speed of 76% and 88% while our current manufacturing mill transfer rate between the majority of 75% to 80%. Also suitable mill speed is determined by the temporary production compared. When comparing, do not just look at the level of the production capacity of the mill, but also the power consumption, steel consumption and economic benefits how. The results of a concentrator States on a series of 3200mm 3100mm ten temporary industrial scale ball mill speed comparison test was filling rate remained under 44% ~ 48% condition, ball speed by 18r / min speed was increased to 74.3% 19.8r / min speed was 81.72%, the whole plant in processing ore increased by 45,800 t but due to the increase in electricity consumption of 6.574 million kw h liners make more consumption 388.48t cost per ton of concentrate to improve the 0.38 yuan,Winnowing pulverizer Mill resulting in the whole plant all year speed is increased due to mill and less profit 567,900 yuan. That is, increasing output without increasing the conclusion is negative.
Grinding media in a state of motion depends on the cylinder body mill speed. Motion state of the medium is different, when other conditions remain unchanged. Grinding effect is not the same. At low speed milling machines, medium spilled off the movement-based, High Pressure Grinding Mill small impact effect, mainly for grinding action grinding mill production capacity is low, suitable for fine grinding; at high speed, medium Paola sports increase the proportion of the way, the impact of the role of strong grinding effect to the impact of the main grinding stripping followed conducive coarse crushed material, milling machine high production capacity. Mill filling rate is different, the maximum useful power reaches the desired speed is not the same. Filling rate is higher, in order to ensure the innermost layer can be in the falling ball movement, requiring higher mill speed, ability to make useful power reaches the maximum, so that the mill has the greatest productivity.
