The wet grinding plant for gold ore consists of an SAG mill and a ball mill. The SAG mill is 9.7 m in diameter and 4.8 m long. It is equipped with two 4,500 KW COMBIFLEX drives and has a rated throughput of 930 t of ore per hour. The 7.9 m x 12.4 m ball mill is powered by a 17 MW ring motor and has a rated throughput of
Get PriceSteel aluminum mills; Pulp paper mills; Power plants; Cement mills; Mines / material handling; Water sewage plants compressors, blowers, mixers, and conveyors. powerdrive's Jaw Type couplings are available in 24 sizes from a minimum torque rating of 3.5 in–lbs to a maximum torque rating of 170,004 in–lbs and
Get Priceof-the-art shell supported cement finish mill. The torque and time requirements of the mill with the ball charge will set the magnitude and time of the inrush current during mill starting. The inertia for this mill reflected to the motor shaft is calculated to be 24,300 ft-lbs2. The time to accelerate the mill to the design speed is given
Get PriceThe Ring Motor is wrapped around the mill and its rotor poles installed at an extension of the mill head. The air gap between the rotor poles and the laminated core results of FE-calculations which such a model, the design goals for a Ring Motor and the evalua- tion of the FE-model by measurements at operating motors .
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Get Price1 Grinding work index according to Bond; 2 TO DOWNLOAD THE MOST IMPORTANT CEMENT BOOKS PLEASE CLICK HERE. 2.1 Hardgrove grindability ratings; 2.2 The Starke-formula; 2.3 Ball mill power demand; 2.4 Specific surface and particle size {to Bond's equation); 2.5 Conversion to open- circuit grinding; 2.6 Ball
Get Price44 OPB 118 Formula tph 2 New Specific power cons. power Vs.Ambuja Cement Rajasthan Limited Ball Mill Performance Efficiency S. tph NB OB Old blaine.5 E Old specific power S1 5000 S1 New Blaine S 4000 S Old Blaine n 1. Blaine) Formula NPR E1 E (S1 / S)n kWh/TC 1 New production rate (Mill output Vs. (sp.
Get Priceof-the-art shell supported cement finish mill. The torque and time requirements of the mill with the ball charge will set the magnitude and time of the inrush current during mill starting. The inertia for this mill reflected to the motor shaft is calculated to be 24,300 ft-lbs2. The time to accelerate the mill to the design speed is given
Get PriceApr 8, 2018 The 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
Get Priceproduction by up to 5%. Replace ball mills with high efficiency roller mills. Calculated from energy savings. 9-11 kWh/ton cement. $7.6/ton cement capacity. NA . Kiln drive efficiency improvements. Calculated from energy savings. 0.5 kWh/ton cement. Increased by about 6%. Reduced power cost for kiln drive by 2- 8%.
Get Pricemands of high torque - direct drive systems and drive systems using standard torque motors with Airflex clutches which replaced them. Because of the large thermal loads associated with mill start-up, the use of VC clutches are recommended. Clutch Selection. The required clutch torque is calculated from the power rating of
Get PriceSack filling. Grinder. Cement mill. Cement silos. Additives silos. Clinker silos. Bag house. Separator. Bag house. Clinker cooler. Oil tank. Cement kiln. ID fan. Bag house on our motor product line to higher AGMA ratings that exceed those of our gearing competition, and bearings with improved seal design that pull on and
Get PriceJul 31, 2017 for the ball mills, while the power draw determined by DEM simulation show a good approximation for the measured power draw. Ball mill are used in the mining, cement, chemical and . and different height rows of rectangle lifters; (ii) A 3.7-kW three-phase motor with a rated speed of. 1480 rpm; (iii) An
Get PriceJan 1, 2018 Time domain records of torque in the shaft of an electric motor rated 2.2 kW driving a constant torque load (a) and a ball mill (b). The eventual appliion of a filtering stage and the calculation of torque energy spectra will lead to conclusions about the behaviour of torque as a function of the mill filling
Get Pricemands of high torque - direct drive systems and drive systems using standard torque motors with Airflex clutches which replaced them. Because of the large thermal loads associated with mill start-up, the use of VC clutches are recommended. Clutch Selection. The required clutch torque is calculated from the power rating of
Get PriceMar 17, 2017 A) Total Apparent Volumetric Charge Filling – including balls and excess slurry on top of the ball charge, plus the interstitial voids in between the balls – expressed as a percentage of the net internal mill volume (inside liners). B) Overflow Discharge Mills operating at low ball fillings – slurry may accumulate
Get Price1 Grinding work index according to Bond; 2 TO DOWNLOAD THE MOST IMPORTANT CEMENT BOOKS PLEASE CLICK HERE. 2.1 Hardgrove grindability ratings; 2.2 The Starke-formula; 2.3 Ball mill power demand; 2.4 Specific surface and particle size {to Bond's equation); 2.5 Conversion to open- circuit grinding; 2.6 Ball
Get PriceSep 15, 2005 Keywords: ceramic ball milling media, mass wear rate model, theory developing, alumina ceramic ball, experiment testing. 1. Introduction. Since ball mill was discovered, it has become a most common and non-fungible grinding methods in many industries such as steel, ceramic, cement, glass and
Get PriceApr 8, 2018 The 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
Get Price10. 2. Types of cement mills. Comparison of specific energy consumption. Basis: 3200 g/cm² OPC. Ball Mill. BM + RP. (combined grinding). VRM. Mill machinery. Ø4.6x14.25 m. Ø4.0x8.75 m. +RP 16/10. Type 46. Main power absorbed. [kW]. 4,350. 3,400. 2,900. Output. [t/h]. 150. 150. 150. Spec. Mill Power absorbed. [kWh /t].
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