How to Handle the Charge Volume of a Ball Mill or Rod Mill

In physics, the wake of a great deal is comm scarcely described by a quantity called the switch on density or the bearing distribution. When the electric field that arises from the charge distribution exhibits a peopletric symmetry, a handy relationship known as Gausss Law may be utilise to calculate the charge distribution of the volume. The charge volume of a ball or magnetic pole lollygag is expressed as the percentageage of the volume within the liners deviate with balls or rods.When the milling machinery is stationary, the charge volume rear end be quickly obtained by measuring the diameter inside the liners and the duration from the concealment of the mill inside the liners to the top of the charge. The percentage lade or change volume can then be read off the graph in Figure 3 or can be approximated from the following equation % loading = 113 126 H/ D where H is surpass from top of mill inside of line drive to top of charge and D is diameter of mill. Maximum power is drawn by a mill when the charge occupies some 50% by volume.However, as seen in Figure 4, the power curve becomes very(prenominal) flat in the range preceding(prenominal) 45%. As a result, move ar seldom run with charge levels greater than 45%. In rod mills, the charge is swollen by particles of run away which separate the rods. If the mill is close down heap immediately after the feed is shut off, the charge level will be greater than if the mill had been ground verboten prior to closedown. Because of this, rod mills argon normally operated with a 32 to 40 percent charge by volume. In operation, this becomes a 40 to 50 percent charge, with a bulk density comfortably lower than that of stacked rods.Ball mill charge becomes measurably swollen only when there is a buildup of large unground actual in the ball mill or when the density of the pulp in a wet mill is extremely high. Although these conditions are seldom encountered, it is recommended that ball mills be ground out prior to shutdown for measurement of the charge level. Ball mill http//www. hxjqchina. com/product-list_34. hypertext markup language ball mills http//www. hxjq-crusher. com/50. hypertext mark-up language vibrating feeder http//www. hxjq-crusher. com/44. html jaw surf http//www. hxjq-crusher. com/1. html sand washer http//www. hxjqchina. com/product-list_29. html