power based sag mill design calculations
GROSS POWER CALCULATOR smctesting
GROSS POWER CALCULATOR General (slurry pool) is predicted from mill design and slurry flow data and its impact on power draw is then predicted. Slurry pooling causes the power draw in AG and SAG mills to be lower than a mill without a power draw of an AG/SAG mill to drop can be gauged by switching the discharge mechanism choice in
Get priceO. I. SKARIN N. O. TIKHONOV CALCULATION OF THE
Decisionmaking on selection of SAG mills increasingly uses the methods of sizing the milling power based on laboratory tests on grindability of minerals. This article considers one of such methods allowing determination of mill characteristics based on the Bond work indexes of
Get priceO. I. SKARIN N. O. TIKHONOV CALCULATION OF THE
Decisionmaking on selection of SAG mills increasingly uses the methods of sizing the milling power based on laboratory tests on grindability of minerals. This article considers one of such methods allowing determination of mill characteristics based on the Bond work indexes of
Get priceA comparative ceecthefuture
The power calculations do not include any additional design factors. The installed power was estimated based on the recommendation by Doll (Doll, 2012) considering the various power losses in the transmission system. The estimated SAG mill power includes a correction for the interstitial mill filling. In the case of the estimated ball
Get priceSag in Overhead Conductor Electrical4U
Apr 17, 2018 · What is Sag?Sag is defined as the different in level between points of supports and the lowest point on the conductor. Here AOB is the transmission line conductor. Two supports are at point A and at point B. AB is the horizontal line and from this horizontal line to point
Get pricepower calculation formula of sag mill rentconsultancy
power calculation formula of sag mill greenrevolution . PDF (1044 K) Journal of Mining and Environment (JME) power index (SPI), and a formula for the SAG mill calculation of liner weight and volume at each stage a Starkey mill was used to measure SAG mill power. Get Price
Get priceTECHNICAL NOTES 8 GRINDING R. P. King
LG A mill power equation for SAG mills. Minerals and Metallurgical Processing. Feb 1990 pp5762. Gross power No load power Net power drawn by the charge (8.13) The net power is calculated from Net power KD2.5L e! c./ Watts (8.14) In equation 8.14, D is the diameter inside the mill liners and Le is the effective length of the mill including the
Get priceThe Selection and Design of Mill Liners milltraj
multistream plants, where mill liner design and selection is only tackled on a cost consumables basis. However, the gains to be had through good liner design and selection are just as great as on the large SAG mills. This paper looks at recognising problems in liner design and selection in
Get priceOptimization of the Design of SAG Mill Internals Using
calculations can be used to predict wear on all wear surfaces as well as breakage of particles on a size by size basis and ball/liner breakage Figure 1. Example of HFS modeling of ball and particle motion in a slice of SAG mill using DEM simulation. The CFD simulations used are based on the appliion of the Navier Stokes equation (with
Get pricepower calculation formula of sag mill rentconsultancy
power calculation formula of sag mill greenrevolution . PDF (1044 K) Journal of Mining and Environment (JME) power index (SPI), and a formula for the SAG mill calculation of liner weight and volume at each stage a Starkey mill was used to measure SAG mill power. Get Price
Get pricePowerbased grinding models for design and geometallurgy
Powerbased grinding models for design and geometallurgy When: 14 15 October Where : for the early design of grinding circuits and for conducting geometallurgy calculations. The course is slanted towards SAG milling, but the methods are also applicable to other types of 11:0012:30 Mill power draw models for ball mills and SAG mills
Get priceSINGLE STAGE SAG/AG MILLING DESIGN Metallurgy
SINGLE STAGE SAG/AG MILLING DESIGN Brian Putland 1, Fred Kock & Leigh Siddall1 OMC generally use power based methods using either the results of an Autogenous The SAG mill model in the JKSimMet software has not been shown to accurately reproduce the performance of a single stage mill for greenfield design. A review of most modern power
Get priceOrway Mineral Consultants Canada Ltd. Mississauga, ON
OMC POWERBASED COMMINUTION CALCULATIONS FOR DESIGN, MODELLING AND CIRCUIT OPTIMIZATION P. Scinto, A. Festa, B. Putland Orway Mineral Consultants Canada Ltd. Mississauga, ON., L4W 5N5, Canada com.au ABSTRACT Orway Mineral Consultants Ltd (OMC)as a consultancy has speciali zed in comminution circuit design for over 30 years.
Get priceSag in Overhead Transmission Line and Its Calculation
Sep 21, 2016 · Sag in Overhead Transmission Line and Its Calculation Sag in overhead Transmission line conductor refers to the difference in level between the point of support and the lowest point on the conductor. As shown in the figure above, a Transmission line is supported at two points A and B of two different Transmission Towers.
Get priceGrinding Circuit Design for Adanac Moly sgs
in terms of SAG power index, SPI (for SAG grinding) and Bond Ball mill work index, BWi (for ball mill grinding). A further measure, the Minnovex crusher index, Ci was also measured for use in the CEET program to determine SAG mill feed size (Kosick and Bennett, 2001). The SPI values varied from 13.5 to 107 minutes with an average of 53 minutes.
Get priceMill (grinding) Wikipedia
SAG is an acronym for SemiAutogenous Grinding. SAG mills are autogenous mills but use grinding balls like a ball mill. A SAG mill is usually a primary or first stage grinder. SAG mills use a ball charge of 8 to 21%. The largest SAG mill is 42'' (12.8m) in diameter, powered by a 28 MW (38,000 HP) motor.
Get priceA Method to Determine the Ball Filling, in Miduk Copper
autogenous (SAG) Mill via an utilized method. Miduk copper concentrator is loed in Kerman ball mill as a function of mill`s power draw or investigation on the ball filling ratio under batch wet conditions, due to load density alters [2, 3]. load percentage calculation that belongs to mill diameter
Get priceTECHNICAL NOTES 8 GRINDING R. P. King
LG A mill power equation for SAG mills. Minerals and Metallurgical Processing. Feb 1990 pp5762. Gross power No load power Net power drawn by the charge (8.13) The net power is calculated from Net power KD2.5L e! c./ Watts (8.14) In equation 8.14, D is the diameter inside the mill liners and Le is the effective length of the mill including the
Get priceDESIGN OF AG/SAG MILL CIRCUITS USING THE SMC TEST
DESIGN OF AG/SAG MILL CIRCUITS USING THE SMC TEST. which makes it valuable for predicting AG/SAG mill feed size as well as conducting MinetoMill projects. The powerbased approach to
Get priceTECHNICAL NOTES 8 GRINDING R. P. King
LG A mill power equation for SAG mills. Minerals and Metallurgical Processing. Feb 1990 pp5762. Gross power No load power Net power drawn by the charge (8.13) The net power is calculated from Net power KD2.5L e! c./ Watts (8.14) In equation 8.14, D is the diameter inside the mill liners and Le is the effective length of the mill including the
Get priceUSING THE SMC TEST® TO PREDICT COMMINUTION
USING THE SMC TEST® TO PREDICT COMMINUTION CIRCUIT PERFORMANCE AG/SAG mill and crusher circuit simulations through the use of JKSimMet. Independent of this it can be used in powerbased calculations, which in conjunction with the Bond ball work index test, enable the prediction of the specific energy of comminution circuits
Get priceBallmill Design Power Draw Edumine Online Tool
An interactive design tool for determination of ballmill power draw. Notes on Ball Mill Design Power Draw Power Draw is steady running power requirement ignoring drivetrain losses and startup loads.
Get priceModelling SAG milling power and specific energy
Modelling SAG milling power and specific energy consumption including the feed percentage of intermediate size particles operating SAG mills (it is not intended for design, but could help ables with the dependent variables SAG mill power and specific energy, to assure models with fixed parameters. The total load it
Get priceAG Autogenous & SAG SemiAutogenous Mill Design Calculations
Table of ContentsSAG Mill ChargeSAG Mill Horsepower — Drive PowerOre Testing for AG & SAG Grinding Mill Design Mill Sizing: After laboratory and pilot plant testing confirm the feasibility of autogenous or semiautogenous grinding, it can be used to establish the exact grinding circuit and mill size. In the pilot plant tests, the tare power of the pilot plant mills should be determined
Get priceDesign of the 40 foot SAG Mill Installed at the Cadia Gold
DESIGN OF THE 40 FOOT DIAMETER SAG MILL INSTALLED AT THE CADIA GOLD COPPER MINE reduced efficiency calculation, based on pilot plant SAG mill discharge size distributions, pilot plant SAG
Get priceGROSS POWER CALCULATOR SMC Testing
GROSS POWER CALCULATOR General Design Data – this covers mill dimensions, speed of rotation, whether the mill has cone ends and type of discharge mechanism. Dimensions can be input in either metric or imperial units by the use of the drop power draw of an AG/SAG mill to drop can be gauged by switching the discharge mechanism choice in
Get priceDesign SAG mill production when you need it most: In day 1
pressure on mill sizing has resulted in nonflexibility in new SAG mill circuit designs. In order to defend the mill size selected, the owner''s engineers need to be able to quantify the loss in productivity that will occur if the SAG mill is downsized. Power based methods allow this calculation to be executed rapidly with good accuracy.
Get priceModelling SAG milling power and specific energy
Modelling SAG milling power and specific energy consumption including the feed percentage of intermediate size particles operating SAG mills (it is not intended for design, but could help ables with the dependent variables SAG mill power and specific energy, to assure models with fixed parameters. The total load it
Get priceModelling SAG milling power and specific energy
Modelling SAG milling power and specific energy consumption including the feed percentage of intermediate size particles operating SAG mills (it is not intended for design, but could help ables with the dependent variables SAG mill power and specific energy, to assure models with fixed parameters. The total load it
Get priceCalculation of Sag & Tension Circuit Globe
Calculation of Sag & Tension Calculation of sag and tension in transmission line depend on the span of the conductor. Span having equal level supports is called level span, whereas when the level of the supports is not at an equal level is known as unequal level span. The calculation of conductor at an equal level shown below.
Get priceSAGMILLING .:. Home
Sagmilling is home to a collection of both free and subscriptionbased calculation tools to aid metallurgical process engineers perform comminution calculations. Grinding circuit design tools, including for SAG millball mill circuits, and geometallurgy energy models are available to subscribers.
Get priceSINGLE STAGE SAG/AG MILLING DESIGN Metallurgy
SINGLE STAGE SAG/AG MILLING DESIGN Brian Putland 1, Fred Kock & Leigh Siddall1 OMC generally use power based methods using either the results of an Autogenous The SAG mill model in the JKSimMet software has not been shown to accurately reproduce the performance of a single stage mill for greenfield design. A review of most modern power
Get priceOutotec Grinding technologies
Outotec Grinding technologies 005 Robust design Outotec mills are designed to produce optimal results, even in harsh environments. Outotec offers both trunnion and shell supported mill design, complemented by a drive solution tailored for optimum performance in any environment. Mill bearings The type of support bearing is selected on the basis of
Get priceSAG mill optimisation using powerbased simulations Ausenco
SAG mill optimisation using powerbased simulations. Author Dr. Rajiv Chandramohan, Robert Braun, Grinding mill trajectory model to determine safe operating speed ranges based on liner/lifter design validating the calculation improvements. Comparisons of actual and predicted data show improved response of the program for variable
Get priceCalculation of Sag & Tension Circuit Globe
Calculation of Sag & Tension Calculation of sag and tension in transmission line depend on the span of the conductor. Span having equal level supports is called level span, whereas when the level of the supports is not at an equal level is known as unequal level span.
Get priceAMIT 135: Lesson 7 Ball Mills & Circuits – Mining Mill
Explain the role of ball mill in mineral industry and why it is extensively used. Describe different types of ball mill design. Describe the components of ball mill. Explain their understanding of ball mill operation. Explain the role of critical speed and power draw in design and process control.
Get priceTECHNICAL NOTES 8 GRINDING R. P. King
LG A mill power equation for SAG mills. Minerals and Metallurgical Processing. Feb 1990 pp5762. Gross power No load power Net power drawn by the charge (8.13) The net power is calculated from Net power KD2.5L e! c./ Watts (8.14) In equation 8.14, D is the diameter inside the mill liners and Le is the effective length of the mill including the
Get priceThe Science of Comminution
SAG Mill Load Control 28 Mill Power Indiion 28 Cyclone Pressure 28 SAG Mill Speed Control 28 introducing important innovations in mill design. Starting from the Late 1970s, Scanmec proved designs large mill units based on the principle of shell mounted supports. In this case, rotating
Get pricesag mill power cost calculations stiftingfoet
Ball Mill Design/Power Calculation. 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 size'', product size as P80 and maximum and
Get priceMODELING THE SPECIFIC GRINDING ENERGY AND BALL
2 MODELLING THE SPECIFIC GRINDING ENERGY AND BALLMILL SCALEUP Ballmill scale up (Bond''s Law)Data: zBond work index w i zFeed D f and product d size (both 80% cumulative passing) Result: The specific grinding energy w Mill power draw P = wT, where T the mill capacity Mill dimensions (from Tables or charts)
Get priceBenchmarking: SAG Mill Power Draw Models SAGMILLING
2 Benchmarking: SAG Mill Power Draw Cadia 3 Benchmarking: SAG Mill Power Draw The calculations below refer to the "Austin Model + Cone" meaning the cone calculations based on Austin''s publiion (see Valery, W. and Hart, S., Design of the 40 foot SAG mill installed at the Cadia Gold Copper Mine, SAG 2001 Conference, pp. I43 to I58
Get priceDesign of the 40 foot SAG Mill Installed at the Cadia Gold
DESIGN OF THE 40 FOOT DIAMETER SAG MILL INSTALLED AT THE CADIA GOLD COPPER MINE reduced efficiency calculation, based on pilot plant SAG mill discharge size distributions, pilot plant SAG
Get priceA Method of C alculating Autogenous/ SemiAutogenous
achieve a certain transfer size, based on the 80 per cent passing value, an ineffi ciency factor must be applied to the SE of single stage ball mills, rod mills or AG/SAG mills when calculating power according to the Bond Third Theory method. Rod mill and AG/SAG mill products are similar and tend to
Get price(PDF) Powerbased comminution calculations using Ausgrind
PDF Ausgrind is Ausenco''s inhouse program used for powerbased comminution calculations. Proprietary calculations have been developed and reconciled
Get pricesag mill power cost calculations stiftingfoet
Ball Mill Design/Power Calculation. 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 size'', product size as P80 and maximum and
Get price
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