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Raw Materials Granulometry: Sampling Point Sieve %Retained [mm] 25 12.5 9.5 4.75 2.36 1.18 A Mill Feed Limestone 82.00% 64.4 90.7 94.6 98.1 99.1 99.5 B Clay Mix. 17.37% 12.1 21.6 26.1 38.7 52.6 64.3 C1 Iron Ore 0.43% 0.0 0.9 2.1 8.0 21.1 41.9 C2 Additive 0.20% 7.8 58.5 67.7 75.6 80.7 85.2 C3 Silica Sand 0.0 0.0 0.0 0.3 0.7 6.3 100.0% 54.9 78.2 82.2 87.3 90.7 93.1 Max. Ball Size Calculation: ρ [g/cm3] K Ψ [%] Limestone 40000 1.3 10.18 335 74 4.44 96.9 Mix 15000 1.5 7.1 335 74 4.44 55.2 Iron Ore 2300 2.5 12.13 335 74 4.44 30.6 Mesh: size of the sieveing where 80% of material is Passing ρ [g/cm3]density of material Work Index K Factor (335 for dry grinding (OC or CC), 350 for wet grinding) Ψ [%] % of Critical Speed (mill) Effective Di of the mill Maximum Ball size Ball Charge Distribution: From to Limestone Granulometry Material: EB WB: Energy %Passing WB: Energy Diam ton Limestone 10.18 40 20 6.7 13.8% 45.1% 20 3.01 35.3% 100 - 90 39.6 20 8 13.2 27.4% 17.8% 8 2.35 27.7% 90 - 80 31.0 8 4 14.9 30.9% 12.7% 4 1.89 22.3% 80 - 60 24.9 4 2.5 13.5 27.9% 9.3% 2.5 1.25 14.7% 70 - 50 16.5 48.3 100.0% 100% 112.0 d80 [µm] Wi [kwh/t] Du [m] Ømax [mm] d80 [µm] Wi [kwh/t] Du [m] Ømax [mm] d180: d280: d280:

Ball Charge Design V

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Ball Charge Design V

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[email protected] Materials Granulometry:Sampling PointSieve%Retained[mm]2512.59.54.752.361.18AMill FeedLimestone82.00%64.490.794.698.199.199.5BClay Mix.17.37%12.121.626.138.752.664.3C1Iron Ore0.43%0.00.92.18.021.141.9C2Additive0.20%7.858.567.775.680.785.2C3Silica Sand0.00.00.00.30.76.3100.0%54.978.282.287.390.793.1Max. Ball Size Calculation:d80 [m] [g/cm3]Wi [kwh/t]K [%]Du [m]max [mm]Limestone400001.310.18335744.4496.9Mix150001.57.1335744.4455.2Iron Ore23002.512.13335744.4430.6d80 [m]Mesh: size of the sieveing where 80% of material is Passing [g/cm3]density of materialWi [kwh/t]Work IndexKFactor (335 for dry grinding (OC or CC), 350 for wet grinding) [%]% of Critical Speed (mill)Du [m]Effective Di of the millmax [mm]Maximum Ball sizeBall Charge Distribution:FromtoLimestone GranulometryMaterial:EBd180:d280:WB:Energy%Passingd280:WB:EnergyDiamtonLimestone10.1840206.713.8%45.1%203.0135.3%100 - 9039.620813.227.4%17.8%82.3527.7%90 - 8031.08414.930.9%12.7%41.8922.3%80 - 6024.942.513.527.9%9.3%2.51.2514.7%70 - 5016.548.3100.0%100%112.0EB:Bond s work index,d180:fresh feed particle size for which there is 80 [%] of passing,d280:final product particle size for which there is 80 [%] of passing,WB:specific energy consumption [kWh/t].

80067:Estndar Value, needs to be determined case by [email protected]

SlegtenBall Charge [email protected] On Slegten MethodSteel dens =7843kg/m3(Use 7843 if not known)!st Compt Bulk Density4500kg/m3(Use 4500 if not known)bulk Densitybulk DensityBall Dia,mmVol,mm3vol,m3kg/ballkg/m3Std Sizekg/ballkg/m390381,703.513.82E-042.994,579.603.52.894,58380268,082.572.68E-042.104,608.1131.824,62070179,594.381.80E-041.414,640.422.751.404,64160113,097.341.13E-040.894,677.732.51.054,6645065,449.856.54E-050.514,721.8520.544,7184033,510.323.35E-050.264,775.851.50.234,7883014,137.171.41E-050.114,845.481.250.134,832258,181.238.18E-060.064,889.6010.074,886204,188.794.19E-060.034,943.600.750.034,955162,144.662.14E-060.024,997.610.6250.024,9991st compt length3m1st compt effective dia.3.7mDesired Vol Load33%2nd compt length6m2nd compt effective dia.3.6mDesired Vol. Load33%Partition Length0.31m1st Compt Chg Vol10.64m31st Compt charge vol./m length3.55m3/mBall Dia , InchCum Length1st compt chg wt47,900.61kg47.9mt3.50.62nd Compt Charge Vol.20.15m331.62nd Compt Charge Vol./m Length3.36m3/m2.752.42.53.023.61.53.71.255.717.3Slegten Ball Charge Based on Std Inch Ball Sizes0.759.3The weight % of 3.5 inch balls in the first compartment is normally 20%0.6259.3Bulk DensityBall Dia, inch% by wtno Ballsmtkg/m3Volume, m3length,mxy1st Compartment03.53.520.03,3209.64,5002.130.60.63.5334.18,97916.34,5003.631.00.63.52.7526.28,97912.64,5002.790.80.632.519.78,9799.44,5002.100.60.63Total 1st Compt.100.0030,25647.910.643.01.631.632nd Compartment1.62.75Transition Zone1.62.7524.98,9794.84,7181.020.312.42.751.52.18,9792.04,7880.430.132.42.75Total Transition7.017,9576.91.450.432.42.5Fine Grinding ZoneSlegten Values2.42.51.2533.0246,95832.54,8326.72.0023.02.5126.7390,18526.34,8865.41.601.63.02.50.7533.31,153,92432.84,9556.61.972.83.02.50.6250.00.00.04,9990.00.003.32Total Fine Grinding93.01,791,06791.518.705.573.62Total 2nd Compt.100.01,809,02598.320.156.003.623.61.53.61.53.71.53.71.53.71.253.71.255.71.255.71.255.715.717.317.317.30.757.30.759.30.759.30.759.30.6259.30.6259.30.6250.33.51.132.02.752.72.53.02.39274989273.323.71.54.71.256.518.30.759.30.625

Slegten3.5000000000000000000003.50.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.63.50.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.630.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.630.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.61.621729491.6217294931.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.6217294931.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729492.751.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729492.751.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729491.621729492.40872135992.40872135992.40872135992.40872135992.752.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.752.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.52.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.52.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135992.40872135993333332.53333333333333333333332.5333333333333333333332.533333333333333.313.313.313.313.313.313.313.3123.313.313.313.313.313.313.313.313.313.313.313.313.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.61501390923.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.61501390923.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139091.53.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139091.53.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.6150139093.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039211.53.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039211.53.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039211.253.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039211.253.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039213.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039211.255.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039211.255.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.741820392115.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.74182039215.741820392115.74182039215.74182039215.74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Distance From Feed End, mBall Diameter, InchBall Charge Plot

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MBD0002D862.unknown