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Ball mill is a horizontal grinding mill and key equipment for grinding materials, widely used in ore flotation processing plant and powder-making production line. According to different materials and discharging methods, there are dry ball mills and wet ball mills for choice. Dry ball mill is mainly for producing mineral powder used in cement, silicate product, new building material, refractory, fertilizer, black and non-ferrous metals and glass ceramic industry; Wet ball mill is a kind of continuous ball mill used in ore beneficiation plant. ...Learn More
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The bondwork index wi is defined in a bondball millon the samples of standard size 3327 0 mm a procedure for thecalculationof the bondwork indexis suggested for cases when the
Read MoreThe ball mill work index laboratory test is conducted by grinding an ore sample prepared to 100 passing 336 mm 6 mesh to product size in the range of 45150 m 325100 mesh thus determining the ball mill work index wi b or bwi the work index calculations across a narrow size range are conducted using the appropriate laboratory work index determination for the material size of interest or by
Read MoreDec 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 distribution of 80 passing inch 6350
Read MoreBall mill operatng work index calculation ball mill operatng work index calculation bond work index formulaequation basic equationssize distribution and exposure ratioequations for work index variationswork index and crack energy the basic work index equation isw 10 wip 10 wif 1where w is the work input required in kilowatt hours per short ton to grind from 80 passing f
Read MoreBall mill work index calculation xls ball mill designpower calculation 2020625 ball mill power calculation example 1 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 distribution of 80 passing inch 6350 micronsget price
Read MoreThe optimum number of grinding balls is 285 however theballdiameters vary due to wear therefore the totalballnumber should be adjusted from time to time to ensure a total mass of 20125 grams the grinding jar of the bondindex ball millmeasures 12 x 12 and has wellrounded corners module rodmill
Read MoreCalculatethe reduction ratio ofball millcalculationof reduction ratioball millcalculations the reduction ratios of rod andball millswere 6465 and 115 which show high theball millis increased and therefore its reduction ratio is higher get price related postsball millfloat bearing indian giant stone
Read MoreThe ball mill work index laboratory test is conducted by grinding an ore sample prepared to 100 passing 336 mm 6 mesh to product size in the range of 45150 m 325100 mesh thus determining the ball mill work index wi b or bwi the work index calculations across a narrow size range are conducted using the appropriate laboratory work index determination for the material size of interest or by
Read MoreFor overflowball mills the charge should not exceed 45 of themillvolume for grate dischargemills the charge should occupy about 50 of themillvolume 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 themill r ie
Read MoreMilling speed feed calculators our free speed and feed calculators will automatically provide the necessary parameters for yourmillingprogram recommended speed and feed charts are also available in pdf format edge dss
Read MoreJan 01 1989 introduction the energy consumption for grinding according to bond 1961 is deter mined by the formula 10 10 i the work index is determined by grinding experiments carried out in a labo ratory bond ball mill based on the results of grinding experiments numerical values of the work index wi are calculated according to the formula 03017516890350 1989 elsevier science
Read MoreThemillproduct can either be finished size ready for processing or an intermediate size ready for final grinding in a rodmillball millor pebblemill agsagmillscan accomplish the same size reductionworkas two or three stages of crushing and screening a rodmill and some or all of theworkof aball mill
Read MoreNov 18 2008 equations of the design by knowing the capacity quotcquot ton of the feed we can get approximately the length quotlquot mm and diameter quotdquot mm of the batch ball mill form d 1242c 4857 l 8571c 1854 volume of mill 2 the bulk volume of balls charge ratio to the volume of mill is known as filling ratio and its range is 3045 2 note there is not
Read MoreOct 19 2017 past experience of aball mill it is possible tocalculatethe grinding media average diameter formed in themilloperation during grinding media unload frommillthe grinding balls bulk weight in fully unloadedmill other enterprises it is possible to obtain the necessary data on a grinding media granulometric composition from
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