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Get PriceMill grinding 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 particl
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Get PriceMill grinding 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 particl
Get Price12/12/2016· 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 Calculation of Top Grinding Media Size Ball Sizing The majority of grinding balls are forged carbon or alloy steels Generally they are spherical but other shapes have been used
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Get PriceThe Bond Abrasion Test determines the Abrasion Index which is used to determine steel media and liner wear in crushers rod mills and ball mills Bond developed the following correlations based on the wear rate in pounds of metal wear/kWh of energy used in the comminution process
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Get Pricedistinguish crushing from grinding rather than mechanism of size reduction [4] There are primary and secondary crushers A primary crusher reduces large particles into smaller sizes for further crushing by the secondary crusher Examples of crushers include jaw crusher gyratory crusher and roll crusher
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Get PriceBond Impact Crushing Work Index Sizing a crusher can be done reliably calculated thanks to the impactcrushing work index and the testwork research done by fred chester bond and his 1952 paper according to bond s third theory of comminution the workenergy input is proportional to the new crack tip length created during particle breakage and equivalent to the work represented by the product
Get PriceThese work indexes can be used for the determination of tu by 1989N in Types >Research grinding and mineral processing Bond work index tables wi BOND WORK INDEX ENGR 3116 Assignment Due Sep View Homework Help BOND WORK INDEX ENGR 3116 Assignment Due Sep 16 2016 from ENGR 3116 at Laurentian ENGR 3116 Mineral Processing 1 BOND WORK
Get PriceBond Ball Mill Work Index BWi kWh/t Bond Rod Mill Work Index RWi kWh/t Table 1 Example of AG/SAG Ball Mill Circuit Wio Calculations 1 2 ABstrAct Optimum use of power in grinding both in terms of grinding efficiency and use of installed capital can have a large effect on profitability
Get Pricedesign and optimization of crushing and grinding circuits [6] There was no heretofore an adequate practical method of sizing ore pretreatment equipment based on its power According to Bond s theory the energy consumed by crushing and grinding of mixture of ore particles is given by E = 10·WI· 1/√P 80 1/√F 80 1 where P 80 and F
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Get PriceProcess Ball Charge Clinker Cement Clinker Cement the most commonly employed formula was developed by bond and is as follows max where example max biggest ball diameter mm sieve dimension where 20% is retained 15 000 specific mass of material grams Wi bond work index kwh short ton Du useful inside mill diameter In this regard calculation of work index of
Get PriceBall Mill Calculation Pdf Grinding To Nano Size Ball Mill Calculation Pdf Grinding To Nano Size 2019 04 05 Apr 03 2013018332Function diagram of planetary ball mill The grinding result is influenced by a number of parameters especially by the rotational speed of the mill the grinding time the ball size the ratio of the sample quantity to the ball filling as well as the material of the
Get PriceOct 10 2014· Jaw Crushers 18 • Feed is admitted between two jaws set to form V open at the top • One jaw is fixed and is nearly vertical and does not move • While the other jaw is moveable and reciprocates in a horizontal plane making an angle 20 30 degree with the fixed jaw • The jaws faces are flat or they may contain grooves
Get PriceBond Impact Crushing Work Index Sizing a crusher can be done reliably calculated thanks to the impactcrushing work index and the testwork research done by fred chester bond and his 1952 paper according to bond s third theory of comminution the workenergy input is proportional to the new crack tip length created during particle breakage and equivalent to the work represented by the product
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