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Dec 26 2015· The Bond Crushing Work Index is common to calculate the power needed to crush rocks from a given F80 size to a resulted P80 product size Bond s impact method comes from a double mirrored pendulum impact crusher test on <76mm but >51mm 3″ and 2″ square rock pieces
Get Price· The jaw crusher is primarily a compression crusher while the others operate primarily by the application of impact Design of Jaw Probability of Crushing Particles in a Jaw Crusher from Equation The models for determining the power required for operating jaw crushers have mostly been derived using Bond s work index
Get PriceBond s Law For Crushing Mills bonds law equation in crushers MTM Crusher in It starts with Bond s Work Index equation So with the same mill power we can increase the tonnage to bonds law for crushing mills Power Mining
Get PriceCrusher giratory crusher bond index the test determines the bond impact work index which is used with bond s third theory of comminution to calculate net power requirements when sizing crushers it is also used to determine the required open side settings jaw crushers and gyratory crushers or closed side settings cone crushers for a given product size p80 25400 x oss
Get PriceWork index crusher studiareacrema it bond work index equation for jaw crusher the bond work index is regarded as one of the crushing resistance it can therefore be presumed that the bond work index is correlated to the mechanical properties of materials 4 energy
Get PriceBond impact work index and abrasive Products As a leading global manufacturer of crushing grinding and mining equipments we offer advanced reasonable solutions for any size reduction requirements including Bond impact work index and abrasive quarry aggregate and different kinds of minerals
Get PriceJun 16 2015· P80 = 25400 x Oss x P80 = 25400 x Css x 7Ecc x / 7Ecc 2Css Where Oss = Open side setting in inches Css = Closed side settings in inches Ecc = Eccentric throw in inches P80 = Aperture through which 80% of the
Get Price= Coarse ore work index and is provided directly by SMC Test For fine particle grinding equation 1 is written as f x f x 3 2 b ib 4 3 W M x x 2 5 where x 2 = 750 microns x 3 = P 80 of final grind in microns M ib = Provided by data from the standard Bond ball work index test using the following equation Morrell 2006 M 80 80 1 80 80 18 18
Get PriceJan 01 2017· A quick procedure with two grinding cycles for the determination of the Bond work index approximate value is exactly the same as in the first two grinding cycles of the standard Bond test and
Get Pricedetermination of crusher work index using a laboratory jaw crusher The Bond Crushing Work Index CWI describes the competency of the ore at larger particle sizes It is used for the calculation of the actual crusher power requirements Pendulum mounted Whatever your requirements you ll find the perfect service oriented solution to match your
Get PriceBond Work Index Formula Equation 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 Wi is the work index or the grinding resistance
Get PriceBonds index based on mechanical properties of bond crushing work index Crusher Screen Plate Bond s law 14 May 2010 Where Kb is a constant that depends on the type of machine and on the
Get Pricegrinding cycles The Bond Work Index is calculated using the formula 𝑖=1 1 44 5 𝑃𝑐 0 23𝐺 82 10 √𝑃80 −10 √𝐹80 1 where W i Bond work index kWh/t P c test sieve mesh size µm G weight of the test sieve fresh undersize per mill revolution g/rev F 80 sieve mesh size passing 80% of the feed before grinding µm P 80
Get PriceBond Work Indexfor Crushing Coal Delumper75 Lpcrusher Bond work index for crushing coal delumper75 lp crusher a bond ball mill work index test is a standard test for determining the ball mill index of a sample of ore it was developed by fred bond in 1952 and modified in 1961 jkmrc co 2006 this index is widely used in the mineral industry for comparing the resistance of different materials to
Get Pricefor the Bond work index approximate value determination which is based on the first order grinding between grinding parameters and the Bond equation parameters He stated that the Andesite and limestone samples were prepared by crushing in a laboratory jaw crusher and roll crusher in a closed cycle with screening to size 100% mm
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Get Pricedetermination of crusher work index using a laboratory jaw crusher The Bond Crushing Work Index CWI describes the competency of the ore at larger particle sizes It is used for the calculation of the actual crusher power requirements Pendulum mounted Whatever your requirements you ll find the perfect service oriented solution to match your
Get Pricebond s law for crushing mills Bewust Outdoor 2019/01/20· bond crushing law and and work index educationcare What is bond s law of crushing Answers Where Kb is a constant that depends on the type of machine and on the material being crushed To use this equation a work index Get Price
Get Pricefor the Bond work index approximate value determination which is based on the first order grinding between grinding parameters and the Bond equation parameters Andesite and limestone samples were prepared by crushing in a laboratory jaw crusher and roll crusher in a closed cycle with screening to size 100% mm
Get Price= Coarse ore work index and is provided directly by SMC Test For fine particle grinding equation 1 is written as f x f x 3 2 b ib 4 3 W M x x 2 5 where x 2 = 750 microns x 3 = P 80 of final grind in microns M ib = Provided by data from the standard Bond ball work index test using the following equation Morrell 2006 M 80
Get PriceMay 24 2019· The test determines the Bond Impact Work Index which is used with Bond s Third Theory of Comminution to calculate net power requirements when sizing crushers It is also used to determine the required open side settings jaw crushers and gyratory crushers or closed side settings cone crushers for a given product = 25400 x Oss x
Get Pricetrial jaw crushers was analyzed using the proposed equation in combination with that of Bond 1961 for calculating the energy requirement in size reduction The equation for capacity The volumeof material V that passes through the crusher bottom opening per stroke is given by If the machine is run at low speeds the movement of the
Get PriceWhat is the Bond Work Index Formula whether a crushing circuit a rod mill or a closed ball mill circuit the Work Index always means the equivalent amount of bond equation for mining Crusher Equipment bond ball mill work equation in wills Mining World Factorial Experimental Modelling of Ball Milling
Get PriceOct 10 2014 · • Bond has suggested a law intermediate between Rittinger s and Kick s laws by putting p = −3/2 in the general equation • Writing C = 5Ei then • Bond terms Ei the work index and expresses it as the amount of energy required to reduce unit mass of material from an infinite particle size to a size L2 of 100 μm that is q =∞
Get PriceQuick 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
Get PriceBond Equation E = kWh/tonne for a metric work index value Power draw nominal kW Design margin needed to Design margin on motor size start the motor under load Raw motor size and to handle spikes of hard ore Consult with the crusher vendor Method volumetric flow The typical throughput values given on crusher brochures relate
Get PriceThe jaw crusher JC2000 200 130 mm jaw crusher Labtech Essa Pty Ltd Australia the The test of determining the standard Bond rod mill work index standard Bond rod mill Labtech Essa Pty Ltd Australia and ASTM includes a closed grinding cycle with a screen Fig 1
Get PriceJul 19 2019· Bond work index equation for jaw crusher bond work index equation for jaw crusher bonds work index of enyigba nigeria ore was found to be 1437kwhshort ton there are many theories of comminution but paramount importance to this work is the modified bonds equation called laboratory jaw crusher get price abrasion
Get PriceThe bond work index is calculated using the formula andesite and limestone samples were prepared by crushing in a laboratory jaw crusher and roll crusher in a closed cycle with screening to size 100 3327 mm the bond work index determination according to the standard bond
Get PriceJan 01 2016· The factors of importance in designing the size of primary crushers such as a jaw crusher are Vertical height of crusher ≈ 2 × Gape Width of jaw > × Gape < × Gape Throw = Gape where the crusher gape is in metres
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