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Get Price ### (PDF) Spreadsheet-based simulation of closed ball milling ,

Hence, simulation of industrial tumbling ball mills requires a lot of effort for calibration of general mathematical model of ball mills to a specific plant Briefly, these efforts consists of plant sampling campaigns, laboratory tests to determine breakage function parameter and mill feed and discharge particle size analysis, selection ,

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Ball Mill Sizing Calculations Spreadsheet Ball mill sizing calculation mill size calculations bond ball mill index jktech a bond ball mill index test bbmwi is a standard test for determining the ball mill work index of a sample of ore the closing screen size is selected so that the product p80 from the crushing and grinding calculations

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Ball Mill Sizing Calculation Spredsheet Bond ball mill calculations spreadsheet 1 About the BondMill Sizing Spreadsheet 2 Scope The BondMill Sizing spreadsheet was designed to determine the most appropriate mill dimensions and Undoubtedly the extensive work of Fred C Bond quotThe Third Theory of of the operational response of conventional ball mills in

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Get Price ### Regrind Ball Mill Sizing Calculations

Ball Mill Calculations Excel Ball mill calculations excel ball mill designpower 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 ,

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In Grinding, selecting (calculate) the correct or optimum ball size that allows for the best and optimum/ideal or target grind size to be achieved by your ball mill is an important thing for a Mineral Processing Engineer AKA Metallurgist to do Often, the ball used in ball mills is oversize “just in case” Well, this safety factor can cost you much in recovery and/or mill liner wear and ,

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Ball Mill Calculations - Free download as Excel Spreadsheet (xls), PDF File (pdf), Text File (txt) or view presentation slides online ball mill calculations

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Dec 12, 2016· 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 ,

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Number, size and mass of each ball size depends on mill load and whether or not the media is being added as the initial charge For the initial chargin of a mill, Coghill and DeVaney (1937) defined the ball size as a function of the top size of the feed, ie, dâ†“V = 040 KâˆšF dB = ball size (cm) F = feed size ,

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Ss – Ball size factor To determine the power that a dry grinding needs, full grate discharge mill Equation 1 is multiplied by the factor of 108 A multi-compartment ball mill consists of two or more grate discharge ball mills in seri The same equation is used to calculate the power that each ball mill compartment should draw The total ,

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Apr 07, 2013· wet ball mill design xls – Grinding Mill China 21 Mar 2013 , ball mill sizing calculations spreadsheet – Crusher South Africa Rotary Dryer – long cylindrical equipment used to dry a wet solid Rotary Dryer , »More detailed

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Mar 09, 2016· Production of paints, construction materials, dry construction mixes, and fertilizers cannot do without ball mills It is a fundamental tool Strommashina Samara plant is a recognized leader in terms of production of ball mills throughout Russia Our vast experience in the field of grinding solutions has enabled us to create a calculator to ,

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The physical constants used in these calculations are given in Table 1 In a discrete element method simulation of the inside of a ball mill, the coefficient of friction of the balls is the most important factor, and it has been reported that the spring coefficient and damping coef-ficient calculated from Young’s modulus and Pois-

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where d bmax is the maximum size of feed (mm); σ is compression strength (MPa); E is modulus of elasticity (MPa); ρb is density of material of balls (kg/m 3); D is inner diameter of the mill body (m) Generally, a maximum allowed ball size is situated in the range from D /18 to D/24 The degree of filling the mill with balls also influences productivity of the mill and milling efficiency

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Ball Mill Sizing Calculation Spredsheet Ball Mill Sizing Calculations Spreadsheet The difficulty in calculation of the above mentioned equation is due to the fact that the the start of milling the first size class is continually diminished curve a fig 3 first faster and ball mills are the most important group of such machines different plot the q3 and q0distribution in a lognormsheet and ,

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Ball Mills Ball Mills accept feed that ranges in size from 80% passing 15 mm to fine feeds in regrind applicationsShell Supported Mill Trunnion Supported Mill 4 Mill Sizing and Power Draw Calculations When selecting a grinding mill it is necessary to first calculate the amount of power (kW),

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methodology of ball mill spreadsheet Design method of ball mill by discrete element method collected the diameter of the gibbsite powder was measured using a master sizer sysmex corporation details of the experimental conditions are given in table results and discussion effects of fins on ball motion in the mill to predict ball mill grinding behavior using the dis

Get Price ### THE OPTIMAL BALL DIAMETER IN A MILL

Investigations were carried out in a laboratory ball mill having the size of DxL = 160x200 mm with a ribbed inside surface of the drum The mill ball loading was 40% by volume, the rotation rate was equal to 85% of the critical speed Balls were made from steel: S4146, extra high quality, having hardness 62 ± 2 HRC according to Rockwell

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Bond_Mill_Sizingxls 1, About the Bond_Mill Sizing Spreadsheet , 2, Scope : The Bond_Mill Sizing spreadsheet was designed to determine the most appropriate mill dimensions and , Undoubtedly, the extensive work of Fred C Bond ("The Third Theory of , of the operational response of conventional ball mills in various grinding circuits Read ,

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165 ft ball mills with an efﬁ ciency of 088 A study carried out by the author in 2004 on the Worsley Alumina Rod/Ball Circuit Line No 1, showed efﬁ ciencies of 127 for the rod mill and 067 for the ball mill The particle size distributions reported are shown in Figure 1 It follows that the

Get Price Jan 02, 2017· The inspiration came from Pump Sizing Calculation from CheCalc But I made it better I think you should download this spreadsheet because it offers better features that online calculation fro CheCalc The spreadsheet is simple You just input the data in dark yellow highlight; Pump sizing is calculated based on rated flow rate

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Sep 01, 2013· Fig 6 shows one set of results, where the circuit capacities are shown in three-ball-size ternary diagrams for various feed sizes with a circulation ratio of 25 at a size reduction ratio of 45:1 using a 1 m diameter ball mill It can be seen that maximum contour lines stay in the bottom of the diagrams for all cases, indicating that ,

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Corrected Ball Mill Feed, and 3 T2’: the particle size distribution of the Corrected Ball Mill Feed With two equations and three unknowns, there are several solutions to equations  and , depending on the value attributed to the Fines Factor (Q1), each yielding different Corrected Ball Mill Feed Size Distributions (T’2) This is

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The geometry of a mill with conical ends is shown in Figure 86 The total volume inside the mill is given by Vm 4 D2 mL 1 2(Lc L) L 1 (Dt/Dm) 3 1 Dt/Dm (816) The density of the charge must account for all of the material in the mill including the media which may be steel balls in a ball mill,

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The laboratory ball mill was designed for grinding limestone, meaning that the work index required for the specific power calculation was assumed to be the work index of limestone, which is 116 KWh/t, with a specific gravity of 26 g/cm 3 or 2600 kg/m 3 The feed size (F 80) of the ball mill was assumed to be 2 mm (2000 microns)

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