### Ball Mill Design/Power Calculation Mineral

619 The approximate horsepower HP of a mill can be calculated from the following equation: HP = (W) (C) (Sin a) (2π) (N)/ 33000 where: W = weight of Ball Mill Operatng Work Inde Calculation emultiverse,52 A New Approach To The Calculation Of Work Index And. using a novel ring mill, a laboratory ball mill, a labora tory rod mill and the semi continuous process using the same rod Ball Mill Work Index Calculation VCharty Ball Mill,1218 Ball Mill Work Index Calculation. Rod mill work index has not been de ned as yet. the ball mill work index is con rmed at 16 kwht. the operating work index, though, is in the

### ball mill operatng work index calculation

A New Approach to the Calculation of Work Index and the. Ball Mill Batch Process The mill dimensions, (D × L), are 0.204 × 0.158 m and it is loaded with 6.5 kg steel balls between 25 ball mill operatng work index calculation,430 the ball mill oversize feed factor is always calculated with the rod mill work index for the optimum feed size and the ball mill work index for EF bm. the model assumes that the Bond Work Index FormulaEquation Mineral ,2013715 The work index should theoretically be proportional to (Crp Crf) √P/Yn where Y is the percent weight of the feed retained on the mesh size tested. From this relationship Wi = K (Crp Crf) √P/Y

### Bond Ball mill work index determination Grinding

1114 The following is the data of ore sample. F80% = 2300mic Mesh of grind =300mic 300mic in feed = 47% In this case if the sample is grind by 100 revolution in ball mill as per Bond Work Index Procedure and Method,66 BOND Work Index Calculations: Calculate the average value of the last three cycles Net/Rev; Record the value. The Work Index (BWi) is calculated according to Fred Bond’s Equation. Bond Work Index for Testing Procedure. Ball mill operatng work index calculation Consuol Mining ,The ball mill work index laboratory test is conducted by grinding an ore sample prepared to 100% passing 3.36 mm (6 mesh) to product size in the range of 45150 m (325100 mesh), thus

### Calculate a Mill's Operating Work Index Mineral

314 Calculate a Mill’s Operating Work Index Use this online formula to calculate a Ball Mill, Rod Mill or SAG Mill Operating Work Index. Based on Fred Bond’s work you can estimate the energy used into your grinding circuit. This is the most accurate and informative method, but much of the data necessary for its application is not yet available.ball mill operatng work index calculation,65 can be determined using the data generated by a conventional Bond ball mill work index test (M. ib. is NOT the Bond ball work index). M. ic. and M. ih. values are also provided as a standard output from a SMC Test ® (Morrell, 2009). The general size reduction equation is as follows (Morrell, 2004. b): f x f x 2. 1 i i. 4 2 W M x x. 1 (1) whereBall Mill Operatng Work Inde Calculation emultiverse,52 A New Approach To The Calculation Of Work Index And. using a novel ring mill, a laboratory ball mill, a labora tory rod mill and the semi continuous process using the same rod mill as described below. In all cases the min eral sample is crushed and screened to pass a predeter mined size 3.5 or 4 mm.

### Ball Mill Work Index Calculation hadooptrainingchennai.in

work index ball mill thesquarespoon.co.za. The work index is then used to calculate the specific energy requirements for sizing rod mills or determining their throughput for a target grind. Sample Requirements: 15kg 12.5mm The Bond Ball Work Index Test determines the resistance of ore to grinding. View Details Send Enquiryball mill operatng work index calculation,Ball Mill Bond Work Index 220rod mill work index has not been de ned as yet.The ball mill work index is con rmed at 16 kwht.The operating work index, though, is in the range of 21 kwht to 25 kwht showing high inef ciency.This raises the point that, in some cases, the bond ef4 oversize factor calculation is not suf cient to compensate. Ball Mill Work Index Calculation VCharty Ball Mill,1218 Ball Mill Work Index Calculation Rod mill work index has not been de ned as yet. the ball mill work index is con rmed at 16 kwht. the operating work index, though, is in the range of 21 kwht to 25 kwht showing high inef ciency. this raises the point that, in some cases, the bond ef4 oversize factor calculation is not suf cient to compensate.

### ball mill operatng work index calculation

Ball Mill Design/Power Calculation. 619 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 mill operatng work index calculation,ball mill operatng work index calculation. silicon manganese alloy ball mill operatng work index . Using Abrasion Index for calculating Steel Balls and mill. Grinding Classification Circuits robertd 0617T0951340400 I think all of his points to a useful correlation for ball mills but an Ai model wont work for SAG mills as feed sizeball mill operatng work index calculation,430 the ball mill oversize feed factor is always calculated with the rod mill work index for the optimum feed size and the ball mill work index for EF bm. the model assumes that the calculated value of sFruitful the specified contingency is greater than the sum of sag peb oleg neikov, in handbook of nonferrous metal powders, 2009 tumbling ball mills

### ball mill operatng work index calculation

Calculate a Mill's Operating Work Index. Use this online formula to calculate a Ball Mill, Rod Mill or SAG Mill Operating Work Index. Based on Fred Bond’s work you can estimate the energy used into your grinding circuit. This is the most accurate and informative method, but much of the data necessary for its application is not yet available.Ball Mill Design/Power Calculation LinkedIn,1212 The approximate horsepower HP of a mill can be calculated from the following equation: HP = (W) (C) (Sin a) (2π) (N)/ 33000 where: W = weight of charge C = distance of centre of gravity or charge.Ball Mill Work Inex Calculation relationalwholeness,91 home; Ball Mill Work Inex Calculation; Ball Mill Work Inex Calculation. Apr 08 Test The Grindability of Your Favourite Elements A grindability test is a procedure that evaluates the resistance of a material to ball milling This test is an effective way to calculate and compare the Bond Work Index BW of different ores The higher the Bond Work Index

### ball mill operatng work index calculation bhakti.be

rod mill work index has not been de ned as yet The ball ﬁ mill work index is con rmed at 16 kWh/t The operating ﬁ work index, though, is in the range of 21 kWh/t to 25 kWh/t showing high inefﬁ ciency This raises the point that, in some cases, the Bond EF4 oversize factor calculation is not suf cient to compensate ﬁ.Testwork: Bond ball mill work index SAGMILLING.COM,526 The computation of a Bond ball mill work index was empirically calibrated by Fred Bond using a short ton basis. The modern (metric tonne) basis is the following equation: NI43101 reports often provide P 100 and the work index. To estimate the other parameters, you can assume: the P 80 is 0.92 × (P 100, µm) 0.96 (see below for details)Ball Mill Work Index Calculation hadooptrainingchennai.in,work index ball mill thesquarespoon.co.za. The work index is then used to calculate the specific energy requirements for sizing rod mills or determining their throughput for a target grind. Sample Requirements: 15kg 12.5mm The Bond Ball Work Index Test determines the resistance of ore to grinding. View Details Send Enquiry

### ball mill operatng work index calculation

Ball Mill Bond Work Index 220rod mill work index has not been de ned as yet.The ball mill work index is con rmed at 16 kwht.The operating work index, though, is in the range of 21 kwht to 25 kwht showing high inef ciency.This raises the point that, in some cases, the bond ef4 oversize factor calculation is not suf cient to compensate.mill operatng work index albakostravel.ch,ball mill operatng work index calculation. ball mill calculation . ball mill for work index test. Diameter of balls (mm) 38.1 31.75 25.4 19.05 15.87 Number of balls 13 20 3 21 28 Besides the results of work index tests are accordingly implemented in Equation 5 to calculate the ore work index values. Equation 5 is similar to Bond work indexball 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 is:W = 10 Wi/√P 10 Wi/√F(1)where W is the work input required in kilowatt hours per short ton to grind from 80% passing F microns to 80% passing P microns, and

### ball mill operatng work index effeciency

In April 2008, Granny Smith started operating their SAG mill in single stage, The variable speed, single stage SAG mill proved itself to be very efficient and Rod Work Index of 18 to 23 kWh/t and Ball Work Index (BWi) of 18 to 19 kWh/t.Ball Mill Operatng Work Index Calculation,424 Quick Method For Bond Work. grinding cycles. The Bond Work Index is calculated using the formula 𝑖11 445 𝑃𝑐 023𝐺8210 √𝑃80 −10 √𝐹80 1 where W i Bond work index kWht P c test sieve mesh size m G weight of the test sieve fresh undersize per mill revolution grev F 80 sieve mesh size passing 80 of the feed before grinding m P 80,