Feb 17, 2009· Specific gravity 23 gm/cm3 Porosity 0 % Hardness moh’s 6 Hardness reckwell 45N 50-60 R45N Compressive strength 9000 kg/cm2 Bending strength >1000 kg/cm2 Elastic modulus 09-10×106 kg/cm2 Impact strength 4 kg/cm2

Get PriceBall Mill Specific Area Cm Kg evert-bioenergiede Ball Mill Specific Area Cm Kg Wet Ball Mill kg kWh 016A i0015 033 Dry Ball Mill kg kWh 0023A i 05 Replacement Ball Size Rowland and Kjos proposed the use of their equation for the determination of the initial and replacement media size Azzaroni 1981 and Dunn 1989 recommended the use of the following expression for the size of the ,

Get Pricetorque mill test is the mill energy input divided by the solids load The energy specific cumulative grinding rate at each screen size is calculated from a torque-mill test as in the example that follows Torque mill solids load during test: 1125 kg (248 lb) of ball mill feed sample from plant survey Sample is reconstituted with water to be

Get PriceSince for the ball mill design we are using 80% passing, the required value of C2 for the ball mill will be equal to120 C3 is the correction factor for mill diameter and is given as; 𝐶𝐶3 = 244 𝐷𝐷 02 (3) However, it is important to note that C3 =0914 vessel used in producing the ball mill was got from a

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Get PriceDec 17, 2018· G = ( HGI – 13 ) / 693 (14) where, G = grindability of the mill, g/rev Mill Power: Bond’s theory enables estimation of specific power consumption ( kwh / Ton ) from the work index, Wi of the material being ground which conforms to mill motor output power of an 8 ft diameter wet grinding overflow ball mill in closed circuit

Get PriceJan 01, 2016· According to Bond, the average mass losses for wet and dry mills are (718) Wet Ball Mill kg / kWh = 016 (A i − 0015) 033 (719) Dry Ball Mill kg / kWh = 0023 A i 05 where A i = abrasion index Rowland and Kjos used a constant of 0175 in Equation instead of 016 The abrasion index of selected minerals is given in the Appendix (Table A-2)

Get PriceThe specific rates of breakage of particles in a tumbling ball mill are described by the equation Si = axαi(Q(z), where Q(z) is the probability function which ranges from 1 to 0 as particle size ,

Get PriceBall charge should be 45% of their volume of the mill However, higher the density better is the grinding Quantity of the material : Theoretically the most efficient use of grinding ball is made when all the voids are filled with the material and the balls are just covered with it Consistency of Material :

Get PriceJan 07, 2015· Specific power consumption for clinker/gypsum grinding in a ball mill should be approximately: 3000 cm2 /g 244 kWh/t 3200 cm2 /g 268 kWh/t 3400 cm2 /g 294 kWh/t 3600 cm2 /g 320 kWh/t 3800 cm2 /g 347 kWh/t 4000 cm2 /g 375 kWh/t Note: The specific power demand of large grinding units is 10-15% better than that of small mills 81 ,

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Get PriceWet Ball Mill = kg kWh = 016(A i-0015) 033; Dry Ball Mill = kg / kWh = 0023A i 05; Replacement Ball Size Rowland and Kjos proposed the use of their equation for the determination of the initial and replacement media size Azzaroni (1981) and Dunn (1989) recommended the use of the following expression for the size of the makeup media:

Get PriceSep 04, 2014· PROBLEM 32 Calculate the terminal velocity of a steel ball, 2 mm diameter and of density 7870 kg/m3 in an oil of density 900 kg/m3 and viscosity 50 mN s/m2 , 02 kg/m2 s, the specific heat in ,

Get PriceUnion Process is the source for the most up-to-date information on grinding balls and other media Click the link above to view a detailed sheet, outlining factors to consider when selecting grinding media, along with specifications on the most common types of media

Get PriceBall mill steel ball , Improve the specific surface area of cement and concentrate recovery rate, while increasing the mill production capacity, extend the service life of mill liners, and greatly reduce the company's production costs 2 Production Process , （J/cm2） metallographic ,

Get PriceJan 30, 2018· You can ask your vendor who made this machine It’s difficulty to calculate capacity of a machine or maximum capacity It’s depend on a lot of parameters But you ,

Get PriceThe ball mill was filled by 6948 kg a steel ball The milling process was carried out at 50 rpm rotation of mill, with the duration of 40-55 minut In the step of preparing the mixture for milling which is used clinker and gypsum, a grinding additive has been added in the amount of 0, 0017, 0032 and 0048% by weight of cement mass

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Get PriceDetermining Energy Cost for Milling Solid Matter in a Ball MillKnow More process by means of ball mills remains their low coefficient of efficiency ( and Craig, 2008) value, Pa; s is specific surface of the material fed into the mill, m2 kg-1; sk is ground material specific showing this specific surface area,

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Get PriceThe fractional filling of voids between the balls (U) can be calculated by U = fc / 04J; fc is the formal fractional mill volume filled by 6000 4000 Clinker [1 - 071 mm] Blaine specific surface, cm2/g 2000 Ball diameter, mm dB = 10 dB = 20 Experimental Fitted 0 0 20 40 60 80 Specific energy, kWh/t Fig 1

Get PriceThe specific surface area referring to volume Sv and the specific surface area , Ball mills normally operate with an approximate ball charge of 30% , = ball weight, kg; after t hours of being charged into the mill , 19, Balls Density, ton/m3, 775, Volume,, Ball, Slurry, Density Read more Locked charge starts and your grinding mill ,

Get PriceA mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cutting Such comminution is an important unit operation in many processThere are many different types of mills and many types of materials processed in them Historically mills were powered by hand (eg, via a hand crank), working animal (eg, horse mill), wind or water ()

Get Pricehow to measure ball mill area | ball mill specific area cm2 kg CachedPapers – Comminution – Determination of Ball-mill Size from Grindability , The specific surface area referring to volume S v and ,Cachedhow to measure ball mill area Mill load volume can be also calculated with using , The ball mill ball calculation formula The ,

Get PriceThe material is ground at a specific speed by using a specific quantity of grinding media (steel balls) for a specific period The equipment is used for making the ground cement samples in the laboratory , Laboratory Ball Mill 5 Kg capacity (AIM 441) Laboratory Ball Mill 10 Kg capacity (AIM 441-10) Laboratory Ball Mill 20 Kg capacity (AIM ,

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Get PriceCompared with internationally stipulated ball mill with same specifications, under the other situation of the same parameters, our cement ball mill output has increased by 20% per hour, and the power consumption has decreased by 10-15% per unit product For open-circuit grinding, the specific surface area of cement can reach above 320㎡/kg

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