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SAG MILL POWER ESTIMATION. Hogg Fuerstenau Model. Objetivo General. Obtener requerimiento potencial y características de la carga del molino, a través de sus dimensiones y condiciones de operación. Objetivos Específicos. Informar volumen de carga del molino. Informar peso de carga del molino. Informar densidad aparente de la carga del molino.

Get PriceThe Net Power Demand of a conventional tumbling mill may be well estimated by the simple Hogg and Fuerstenau Model (“Power Relations for Tumbling Mills”, Trans. SME-AIME, Vol. 252, pp. 418-432, 1972), here expanded from its original formulation to represent the independent contribution of each component of the mill charge (balls and slurry) to the total net power draw of the mill :

Get PriceThe Hogg and Fuerstenau Power model for AG/SAG mills: Recalibration with an expanded database, Proc. PROCEMIN 2017, October 4-6. 2017. (3) Menacho, J.M. and P.A. Chávez, Mass transfer in SAG milling, Proc. PROCEMIN 2008. •Particle Breakage : Austin approach, with energy-based equations (1) •Power Consumption : Modified Hogg/Fuerstenau equation (2) •Mass Transport : Flow through

Get PricePrediction of correct sag mill power consumption with a change in ore hardness, solid percent (density) to the sag feed, rpm of sag and PSD has always been very tricky. So far, I have used Austin-Morrell model and Hogg- Fuerstenau power model, but these models seem to work well only under certain boundary conditions.

Get Price2009-01-01 The relation between Mill Power and Hold Up develop by Hogg and Fuerstenau (1972) can be written as follow: Pt 1 2 where A(z), B(z), C(z), D(z) and E(z) are polynomial of 1st, 10th, 6th, 4th and 2nd order. The last two terms of eq (5) are associated to pebbles flow returning to the Mill. These terms compensate the system delay and improve the prediction performance. Sump level model Lk z

Get Price(A77) The Hogg Fuerstenau Power Model for AG/SAG Mills: Recalibration with an Expanded Empirical Database Jaime Sepúlveda, J-Consultants, Chile Comminution: Crushing, Grinding, SAG, HPGR (7) (A19) Energy Optimization of Mine-Plant Processes in Low Grade Copper Mines

Get PriceThe Net Power Demand of a SAG mill may be well estimated by the simple Hogg and Fuerstenau Model (“Power Relations for Tumbling Mills”, Trans. SME-AIME, Vol. 252, pp. 418-432, 1972), here expanded from its original formulation to represent the independent contribution of each component of the mill charge (balls, rocks and slurry) to the total net power draw of the mill :

Get PriceSUBJECT: SAG MILL + BALL MILL CIRCUIT SIZING Summary: ... The desired outcome of all of these methods is an estimate of the grinding specific energy required to reduce a rock from a “F80” size to a “P80” size. This energy is expressed as kWh/tonne, where kW is the grinding energy re- quired “at the mill shell” multiplied by the inverse of throughput (h/tonne). This energy ...

Get Price2015-11-25 SAG power draw survey tabulation. This LibreOffice spreadsheet contains the raw data used to create Table 1 and Table 2 of the paper "An updated data set for SAG mill power model calibration", presented at IMPC 2016 in Quebec City, Canada in September, 2016. Refer to the paper for the definitions and meanings of the different columns.

Get Price2016-01-01 The SAG mill had a 6–8% ball charge and the power consumption was 8 kWh/t, which agreed well with the expected value. 9.6. Problems. 9.1. In an SAG mill the dimensions of the mill were 9.75 m × 3.5 m and the specific gravities of the mineral and that of the balls charged were 4.1 and 7.9, respectively. The mill was rotated at 75% of its ...

Get PriceSAG MILL POWER ESTIMATION. Hogg Fuerstenau Model. Objetivo General. Obtener requerimiento potencial y características de la carga del molino, a través de sus dimensiones y condiciones de operación. Objetivos Específicos. Informar volumen de carga del molino. Informar peso de carga del molino. Informar densidad aparente de la carga del molino.

Get Price2009-01-01 The relation between Mill Power and Hold Up develop by Hogg and Fuerstenau (1972) can be written as follow: Pt 1 2 where A(z), B(z), C(z), D(z) and E(z) are polynomial of 1st, 10th, 6th, 4th and 2nd order. The last two terms of eq (5) are associated to pebbles flow returning to the Mill. These terms compensate the system delay and improve the prediction performance. Sump level model Lk z

Get PriceThe Hogg and Fuerstenau Power model for AG/SAG mills: Recalibration with an expanded database, Proc. PROCEMIN 2017, October 4-6. 2017. (3) Menacho, J.M. and P.A. Chávez, Mass transfer in SAG milling, Proc. PROCEMIN 2008. •Particle Breakage : Austin approach, with energy-based equations (1) •Power Consumption : Modified Hogg/Fuerstenau equation (2) •Mass Transport : Flow through

Get PricePrediction of correct sag mill power consumption with a change in ore hardness, solid percent (density) to the sag feed, rpm of sag and PSD has always been very tricky. So far, I have used Austin-Morrell model and Hogg- Fuerstenau power model, but these models seem to work well only under certain boundary conditions.

Get PriceSUBJECT: SAG MILL + BALL MILL CIRCUIT SIZING Summary: ... The desired outcome of all of these methods is an estimate of the grinding specific energy required to reduce a rock from a “F80” size to a “P80” size. This energy is expressed as kWh/tonne, where kW is the grinding energy re- quired “at the mill shell” multiplied by the inverse of throughput (h/tonne). This energy ...

Get Price1994-05-01 The model used by Fuerstenau et al. [3] is a modification of the Hogg-Fuerstenau treatment to include the potential energy of lift of a portion carried up by the lifters to the cataracting position. Kapur et al. [5] use the model shown in Figure 14 which at first sight seems to be the same. However the power is calculated from the torque assuming that the cascading stream lies within the ...

Get Price2016-01-01 The SAG mill had a 6–8% ball charge and the power consumption was 8 kWh/t, which agreed well with the expected value. 9.6. Problems. 9.1. In an SAG mill the dimensions of the mill were 9.75 m × 3.5 m and the specific gravities of the mineral and that of the balls charged were 4.1 and 7.9, respectively. The mill was rotated at 75% of its ...

Get PriceThe simple Hogg and Fuerstenau model serves such purpose well (see Spreadsheet Mill Power_SAG Mills). In the above theoretical framework, a MBWT consists of weighing and tagging a limited number of balls – of the type (or types) under consideration – charging them into the selected industrial test mill and recovering them after a predetermined number of operating hours (ttest).

Get Price2015-11-25 SAG power draw survey tabulation. This LibreOffice spreadsheet contains the raw data used to create Table 1 and Table 2 of the paper "An updated data set for SAG mill power model calibration", presented at IMPC 2016 in Quebec City, Canada in September, 2016. Refer to the paper for the definitions and meanings of the different columns.

Get Price2020-12-01 But if the minimum resolved DEM size needs to be larger, say 10–20 mm (which could be necessary for full size industrial SAG mills), then the SPH + PBM slurry component may be required to also represent particle size fractions that do not fully satisfy one or both of the rheology or first order grinding requirements (one condition for the SPH part of the model and one for the PBM part). The ...

Get PriceSAG MILL POWER ESTIMATION Hogg Fuerstenau Model Remarks Example : 36'f x 17' SAG Mill. Mill Dimensions and Operating Conditions Diameter Length Mill Speed Charge ft ft % Critical Filling,% 35.00 17.00 76.00 28.00 rpm 9.84. Balls Interstitial Filling,% Slurry Filling,% 10.00 60.00. Mill Power, kW 5142 Lift 3344 Angle, 1491 45.00 9977 3.00 10286 . Balls Rocks Slurry Net Total % Losses Gross ...

Get PriceSUBJECT: SAG MILL + BALL MILL CIRCUIT SIZING Summary: ... The desired outcome of all of these methods is an estimate of the grinding specific energy required to reduce a rock from a “F80” size to a “P80” size. This energy is expressed as kWh/tonne, where kW is the grinding energy re- quired “at the mill shell” multiplied by the inverse of throughput (h/tonne). This energy ...

Get PricePrediction of correct sag mill power consumption with a change in ore hardness, solid percent (density) to the sag feed, rpm of sag and PSD has always been very tricky. So far, I have used Austin-Morrell model and Hogg- Fuerstenau power model, but these models seem to work well only under certain boundary conditions.

Get Price2016-01-01 The SAG mill had a 6–8% ball charge and the power consumption was 8 kWh/t, which agreed well with the expected value. 9.6. Problems. 9.1. In an SAG mill the dimensions of the mill were 9.75 m × 3.5 m and the specific gravities of the mineral and that of the balls charged were 4.1 and 7.9, respectively. The mill was rotated at 75% of its ...

Get Price1994-05-01 The model used by Fuerstenau et al. [3] is a modification of the Hogg-Fuerstenau treatment to include the potential energy of lift of a portion carried up by the lifters to the cataracting position. Kapur et al. [5] use the model shown in Figure 14 which at first sight seems to be the same. However the power is calculated from the torque assuming that the cascading stream lies within the ...

Get PriceThe simple Hogg and Fuerstenau model serves such purpose well (see Spreadsheet Mill Power_SAG Mills). In the above theoretical framework, a MBWT consists of weighing and tagging a limited number of balls – of the type (or types) under consideration – charging them into the selected industrial test mill and recovering them after a predetermined number of operating hours (ttest).

Get PriceAn updated data set for sag mill power model calibration This paper expands the SAG mill survey database published by the Author at Procemin 2013. The new database includes 49 published SAG/AG mill surveys and includes mills from all over the world.

Get PriceUse of this formula allows the estimation of full mill capacity potential based on HES... Read more. Bond Work Index Formula-Equation - 911 Metallurgist. Jul 15, 2013 ... What is the Bond Work Index Formula-Equation? ... You can read all the details of this now “Biblical” grinding power requirement calculation formula in ... to generate good testing data for SAG and ball mill circuit grind ...

Get Price2020-12-01 But if the minimum resolved DEM size needs to be larger, say 10–20 mm (which could be necessary for full size industrial SAG mills), then the SPH + PBM slurry component may be required to also represent particle size fractions that do not fully satisfy one or both of the rheology or first order grinding requirements (one condition for the SPH part of the model and one for the PBM part). The ...

Get PriceSAG SAGMILL MILLPOWER POWERESTIMATION ESTIMATION Hogg Fuerstenau Hogg FuerstenauModel Model Molino MolinoSAG SAGAntamina Antamina: : 38' 38'xx19'. 19'. Mill MillDimensions Dimensionsand andOperating OperatingConditions Conditions Diameter Length Mill Charge Diameter Length MillSpeed Speed Charge ftft ftft %%Critical Filling,% Critical Filling,% 37.40

Get PriceThe simple Hogg and Fuerstenau model serves such purpose well (see Spreadsheet Mill Power_SAG Mills). In the above theoretical framework, a MBWT consists of weighing and tagging a limited number of balls – of the type (or types) under consideration – charging them into the selected industrial test mill and recovering them after a predetermined number of operating hours (ttest).

Get Price1994-05-01 The model used by Fuerstenau et al. [3] is a modification of the Hogg-Fuerstenau treatment to include the potential energy of lift of a portion carried up by the lifters to the cataracting position. Kapur et al. [5] use the model shown in Figure 14 which at first sight seems to be the same. However the power is calculated from the torque assuming that the cascading stream lies within the ...

Get PriceSAG SAGMILL MILLPOWER POWERESTIMATION ESTIMATION Hogg Fuerstenau Hogg FuerstenauModel Model Molino MolinoSAG SAGAntamina Antamina: : 38' 38'xx19'. 19'. Mill MillDimensions Dimensionsand andOperating OperatingConditions Conditions Diameter Length Mill Charge Diameter Length MillSpeed Speed Charge ftft ftft %%Critical Filling,% Critical Filling,% 37.40

Get Price2020-12-01 But if the minimum resolved DEM size needs to be larger, say 10–20 mm (which could be necessary for full size industrial SAG mills), then the SPH + PBM slurry component may be required to also represent particle size fractions that do not fully satisfy one or both of the rheology or first order grinding requirements (one condition for the SPH part of the model and one for the PBM part). The ...

Get PriceSAG MILL POWER ESTIMATION Hogg Fuerstenau Model Remarks Example : 36'f x 17' SAG Mill. Mill Dimensions and Operating Conditions Diameter Length Mill Speed Charge ft ft % Critical Filling,% 35.00 17.00 76.00 28.00 rpm 9.84. Balls Interstitial Filling,% Slurry Filling,% 10.00 60.00. Mill Power, kW 5142 Lift 3344 Angle, 1491 45.00 9977 3.00 10286 . Balls Rocks Slurry Net Total % Losses Gross ...

Get PriceOne of the weak points in the production plan estimation using the block model is the limited ... (ii) Power consumption submodel based on the torque approach (R. Hogg and D. Fuerstenau, 1984, Sepúlveda, 2017), (iii) Mass transport submodel using the porous media transport theory (Menacho et al., 2008), and (iv) Slurry evacuation system described as arrangement of classifiers (L. Magne et al ...

Get PriceDocumentos similares a Ecuaciones MillPower SAG Mills - SAG Mill Power Estimation - Hogg Fuerstenau Model Carrusel anterior Carrusel siguiente mejoramiento de molino sag

Get PriceSAG SAGMILL MILLPOWER POWERESTIMATION ESTIMATION Hogg Fuerstenau Hogg FuerstenauModel Model Molino MolinoSAG SAGAntamina Antamina: : 38' 38'xx19'. 19'. Mill MillDimensions Dimensionsand andOperating OperatingConditions Conditions Diameter Length Mill Charge Diameter Length MillSpeed Speed Charge ftft ftft %%Critical Filling,% Critical Filling,% 37.40

Get Price