Hello everybody We have a ball mill in our plant with 2m diameter and 7 m length I think that It is not a standard ball mill Now I want to calculate the power draw of this ball mill and know how much must be the loaded ball in this ball mill Can I use the usaul formulas to calculate? Thankyou

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Get Priceoperation is essential to guarantee mineral processing plant profitability [1] To achieve improvements in the production capacity and energy efficiency of an industrial tubular ball mill, some researches were done such as monitoring level of coal powder filling in an industrial ball mill as a function of mill`s power ,

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Get PriceMineral Processing Plant Design General Procedure for plant design o Process Design , Secondary data calculations based on mass balance around the equipment must then be shown , • Rising energy costs are causing owners to increase the integration of mine and mill design, so that they can identify ways of reducing overall electrical power ,

Get PriceModelling mineral size reduction in the closed-circuit ball mill at the Pine Point Mines concentrator International Journal of Mineral Processing 1981 , 8 (1) , 61-78

Get Priceapproach to modeling of mill power draw Trans Instn Mining Metall (Sect C:Mineral Processing Extr Metall) 105, January-April 1996 ppC54-C62 Austin LG A mill power equation for SAG mills Minerals and Metallurgical Processing Feb 1990 pp57-62 Gross power No load power Net power drawn by the charge (813) The net power is calculated from ,

Get PriceThe applications of ball mills are ubiquitous in mineral processing and mining industry, metallurgy, cement production, chemical industry, pharmaceutics and cosmetics, ceramics, different kinds of laboratory studies and tests Besides particle size reduction, ball mills are also widely used for mixing, , the mill shaft power and the specific ,

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Get PriceEnter the width of a mill shell liner Note this is not the width of a lifter! You may use the Mill Liner Effective Width calculation to determine this value The mill critical speed will be calculated based on the diameter (above) less twice this shell liner width Mill Actual RPM: Enter the measured mill rotation in revolutions per minute

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Get PriceThe Bond work index, W i, 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 productTherefore, in practice we can expect some difficulties and errors when the energy consumption is determined according to this formula in the case when, for a given size of grinding product, the value of the work index W i ,

Get PriceDec 20, 2013· An analysis of energy usage in the production of refined cathode copper was made from mining ore to cathode copper In mining copper ore the greatest energy consumers are ore hauling and blasting Another important factor is the “recovery efficiency” of the metallurgical processes used to extract the copper The mining and mineral concentrating energies are directly proportional to the ,

Get PriceAt mineral processing plants, comminution circuits have the most , constructed in order to determine the SAG mill power index (SPI), and a formula for the SAG mill consumed power prediction was introduced [2] The , relation to calculation of consumed power of the industrial SAG mill, using information from four plants in Canada [5] This ,

Get PriceJul 31, 2014· Table 1 Bond method power calculation for two-compartment mill Mill feed F80 (mm) EF4 Power required (kW) Difference (%) 155 106 3564 00 45 101 3251 88 30 1 3133 121 18 1 3018 153 It can be seen that a reduction in two-compartment mill power in the order of 9–15% is calculated for different crushed clinker feed F80 siz

Get Price•-Power(energy) •-Capacity •-Percentage of degree of charge fillings •-Mill speed •-Residence time •Feed properties •-Input energy •-Particle size distribution •-Mineral composition •Micro-structure (texture and grain size) •-Mineral liberation distribution •-Association index •-Modal mineralogy Geological model ,

Get PriceThe 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 size’, product size as P80 and maximum and finally the type of circuit open/closed ,

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Get Pricespecification of the Bond mill are given in Table 1 Table 1 Bond's mill specification and grinding conditions Mill diameter, D m, cm 3048 Mill Length, L m, cm 3048 Number of mill rotations in minutes, n, min-1 70 Mill balls weight, M b, kg 21125 Geometry of mill liner smooth Grinding type dry V ore, cm 3 ,

Get Pricein designing of grinding system in mineral processing [6], for a newly discovered ore it is very important to determine its hardness and grinding characteristics so that suitable power can be selected for its communition [5] Communition in mineral processing plant or mill takes place as a sequence of crushing and grinding process

Get PriceDec 18, 2013· Fine grinding, to P80 sizes as low as 7 μm, is becoming increasingly important as mines treat ores with smaller liberation siz This grinding is typically done using stirred mills such as the Isamill or Stirred Media Detritor While fine grinding consumes less energy than primary grinding, it can still account for a substantial part of a mill’s energy budget

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Get PriceWhere operating work index (kwh/t) isWiop, mill power draw (kw) isW, Q is mill throughput (t/h) andP80,F80 are respectively mill product and feed size distributions Operating Bond index is not comparable to laboratory standard Bond index; therefore a few correction factors should be multiplied to obtain of corrected operating Bond index[13, 17]

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Get Pricemilling circuit consists of a rod mill followed by a ball mill in seri Crusher product (-9 mm) is fed to the rod mill, and the water is fed in ratio to the ore feed mass The rod mill discharge is pumped, without any further water addition, to the first ball mill The ball mill discharges to a sump where water is

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