A simple yet practical alternative for the standard bond methodkeywords work index, bond method, kinetic grinding test, grindability, ball mill introduction the standard bond (1952 1961) method is ,

Get PriceChina Bond Work Index for Rod Mill Manufacturers and Introduction the bond work index for ball mill is a special equipment for testing bond ball mill work index simple lab test can choose ball mill by power method or judge the effects of material properties change to the ball milling process or the operation condition of crusher by using this equipment

Get PriceStandard Bond Ball Mill Grindability Test MethodProcedure Standard Bond Ball Mill Grindability Test MethodProcedure Here is the old AllisChalmers Bond Work Index Grindability Test Procedure The standard feed is prepared by stage crushing to all passing a 6 mesh sieve but finer feed can be used when necessary It is screen analyzed and packed by shaking in a 1000cc graduated cylinder

Get PriceBond for 50 mm >d >005 mm , W is the work index measured in a laboratory ball mill (kilowatt-hours per metric or short ton) P 80 is the mill circuit product size in micrometers; F 80 is the mill circuit feed size in micrometers Rod mill A rotating drum causes friction and attrition between steel rods and ore ,

Get PriceBond Work Index Test Ball Mill - 911Metallurgist Bond Work Index Test Ball Mill US$ 13,800 The FC Bond Work Index Test Ball Mill was designed by F C Bond for use in determining the Bond Index, a measure of grindability and power required for grinding applications The FC Bond Mills are used in laboratories throughout the world

Get Pricefor the Bond Work Index, the Sepor machine produced a value higher than that of the BICO mill for the same material The average va lu e for the Sepor machine was 148 kWh/mt more, a

Get PriceJan 01, 2013· To calculate the Bond work index (W i) in a standard laboratory scale rod-mill, Bond derived the following equation: (1) W i = 62 P i 023 G i 0625 10 P-10 F kw h sh t where F is 80% ,

Get PriceThe Bond rod mill work index is not as common as the Bond ball mill work index, and there are two different variations on the mill apparatusThe SAGMILLINGCOM models expect a mill with a "wave liner", and is not compatible with mills using "smooth liners"

Get PriceJan 01, 2013· To calculate the Bond work index (W i) in a standard laboratory scale rod-mill, Bond derived the following equation: (1) W i = 62 P i 023 G i 0625 10 P-10 F kw h sh t where F is 80% passing size of original feed, P is 80% passing size of circuit product and P i is the test-sieve size in μm

Get PriceThis video was put together by Joshua Wright and Aldo Vasquerizo as a supplemental lecture for University of Nevada RenoIf you have any questions, need advi,

Get PriceFrom Bond abrasion index tests, it is possible to determine a wear rate using the following empirical equation (1) , Estimation of the wear rate associated with ball mill of mahd ad dahab gold ,

Get PriceBond Index Ball Mill Rod Mill BT 100 XL RETSCH The grinding jar for the bond index rod mill is x in size and has a waveshaped design at least to kg sample material is required to simulate a closed grinding circuit in a ball or rod mill the rod mill work index rwi is used for particle size determination in a size range from mm down to mm whereas ball mill ,

Get PriceBond Index Ball Mill Rod Mill Bt 100 Xl Retsch The grinding jar for the bond index rod mill is 12 x 24 in size and has a waveshaped design at least 15 to 20 kg sample material is required to simulate a closed grinding circuit in a ball or rod mill the rod mill work index rwi is used for particle size determination in a size range from 25 mm down to 21 mm whereas ball mill work

Get PriceBond Index Ball Mill Rod Mill Bt 100 Xl Retsch The grinding jar for the bond index rod mill is 12 x 24 in size and has a waveshaped design at least 15 to 20 kg sample material is required to simulate a closed grinding circuit in a ball or rod mill the rod mill work index rwi is used for particle size determination in a size range from 25 mm down to 21 mm whereas ball mill ,

Get PriceBond developed a standard laboratory test for the determination of the work index for ball and rod mills in 1952 and modified it in 1961 The standard Bond ball mill grindability test is a closed circuit dry grinding test with a 250% circulating load The standard procedural outline of the test is stated in (Bond) 1961 The work index for a ,

Get PriceBond Work Index Test Ball Mill - 911Metallurgist The FC Bond Work Index Test Ball Mill was designed by F C Bond for use in determining the Bond Index, a measure of grindability and power required for grinding applications The FC Bond ,

Get PriceBond Rod Mill Grindability Test Grinding Solutions can carry out Bond Rod Mill Work Index tests to determine the energy requirements for milling ore in a rod mill The test requires a minimum of 20kg of -125mm material Closing screen sizes typically range from 475mm to 212 181 m Abrasion Index,

Get Pricebond work index determination with a sepor batch ball mill Bond ball mill work index determination grinding dear all have a good day i am trying to determine ball mill work index for a very soft if i follow bonds procedure to do experiment not able to determine the following is the data of ore sample f mic mesh of grind mic mic in feed in this case if the sample is gri get price

Get Pricebond index in vertical roller mill power calculations Bond Work Index FormulaEquation Basic EquationsSize Distribution and Exposure RatioEquations For Work Index VariationsWork Index and Crack EnergyThe basic work index equation is:W 0 Wi/ P 60 0 Wi/ F 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 Wi is ,

Get PriceThe Bond's standard ball mill is used to determine the work index value of differ ent sampl The Bond work index is defined as the kilowatt-hours per short ton required to break from infinite size to a ,

Get PriceThe grinding jar for the bond index rod mill is 12 x 24 in size and has a waveshaped design at least 15 to 20 kg sample material is required to simulate a closed grinding circuit in a ball or rod mill the rod mill work index rwi is used for particle size determination in a size range from 25 mm down to 21 mm whereas ball mill work

Get Pricemilling chamber, and also on the particle breakage , sphere and/or a cube located between two jaws, and the work done , using standard ball and rod mill, respectively, and are , crushability index of lizenithne, 128 kWh/tonne, the Bond

Get PriceJan 01, 1989· Calculation of energy required for grinding in a ball mill Int J Miner Process, 25: 41-46 The Bond work index, Wi, as an indicator of the grindability of raw materials is not a material constant but rather it changes with change of size of the grinding product

Get PriceThe ability to simulate the Bond work index test also allows examination of truncated ball mill feed size distributions on the work index For grinding circuits where the feed to a ball mill is sent directly to the classifier and the cyclone underflow feeds the ball mill (see Figure 310), a question arises as to whether this practice will alter the ball mill work index (BW i) of the material ,

Get PriceBond Index Ball Mill Rod Mill BT 100 XL RETSCH The grinding jar for the bond index rod mill is x in size and has a waveshaped design at least to kg sample material is required to simulate a closed grinding circuit in a ball or rod mill the rod mill work index rwi is used for particle size determination in a size range from mm down to mm whereas ball mill work

Get PriceBall Mill Bond Work Index: WiB = 121 kWh/st Rod Mill Bond Work Index: WiR = 105 kWh/st Impact Bond Impact Index: WiI = 79 kWh/st SAG Power , MEI Online - Bond Work Index An abreviated test that did not reach steady state as a Bond Work Index does would only be , mill sizing etc

Get PriceThe goal of this work is to create an equation to adjust a Bond ball mill work index from one P 80 basis to another The proposed model consists of two components, the variable coefficient that is determined from a specific work index determination and a fixed exponent determined by a calibration procedure

Get PriceThe Bond ball mill work index is one of the most commonly used grindability tests in mining, and is often referred to as the Bond work index The test is a 'locked-cycle' test where ground product is removed from test cycles and replaced by fresh feed The test much achieve a ,

Get PriceA quick method for bond work index approximate value determination 323 This method, by using mathematical algorithms, simulates the Bond test on the basis of the results from the first two milling cycl Magdalinovic (1989) proposed a shortened method for determining the Bond work index, which includes two milling

Get Price