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Ball Mill Design/Power Calculation The basic parameters used in ball mill design power calculations rod mill or any tumbling mill sizing are material to be ground characteristics Bond Work Index bulk density specific density desired mill tonnage capacity DTPH operating solids or pulp density feed size as F80 and maximum chunk size product size as P80 and

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Dec 12 2016 Ball Mill Power Calculation Example A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work index of 15 and a size

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means that necks should not experience plastic deformation or fatigue However loads in a mill are not clearly and precisely defined Of course there are rules to calculate the maximum stress in rolls caused by design limits for maximum separation force torque Hertzian pressure etc but these criteria are valid

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For overflow ball mills the charge should not exceed 45 of the mill volume For grate discharge mills the charge should occupy about 50 of the mill volume Bond developed a relationship that can be used to determine the percent charge by volume as a function of the vertical height above the charge He and the radius of the mill R i.e

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4 Calculate the Table Feed V f m/min Use the formula V f = N f n K f K f is the feed rate multiplier coefficient taking into consideration that chip load is less than theoretical value Take the value of K f from Table 5 or Table 6 3 Calculate Spindle Speed Use the formula N = SFM x 3.82 ÷Dw Table 3Working Diameter For Ball

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Since for the ball mill design we are using 80 passing the required value of C2 for the ball mill will be equal to1.20 C3 is the correction factor for mill diameter and is given as 𝐶𝐶3 = 2.44 𝐷𝐷 0.2 3 However it is important to note that C3 =0.914 vessel used in producing the ball mill was got from a

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Jun 19 2015 The basic parameters used in ball mill design power calculations rod mill or any tumbling mill sizing are material to be ground characteristics Bond Work Index bulk density specific density desired mill

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