Sag Mill Power Draw

calculate sag mill power draw

calculate sag mill power draw Continuous Monitoring of Mineral Processes with DiVA A strain gauge sensor that measure the deflection of a lifter bar when it hits the charge the only grinding control is to maximize the power drawn by the mill Get price

Calculating Power Draw when sizing Ball Mills

On the other hand for SAG mills with grate discharge the charge level is a bit more variable so you do sometimes see higher SAG mill power or mill load levels at higher circulating loads This why the cyclone feed pump or cyclone cluster is often the bottleneck in capacity constrained ball mill circuits but mill load or power draw is often the bottleneck in capacity constrained SAG mill

Modelling SAG milling power and specific energy

SAG milling Power modelling Especific energy modelling SAG mills operation data abstract Comminution particularly milling is on average the largest consumer of energy in mining Actual com minution circuits consist in most of the cases in coarse crushing SAG milling pebble crushing and sec ondary ball milling

sag mill power draw

Ag Mill Power Draw Calculation Grinding Mill Power Calculation Choosing a sag mill to achieve design performancePower draw in the mill chosen be provided at optimum conditions as wellBased on actual 3ft diameter pilot plant results we can now show that the grinding efficiency and throughput drop when the [24/7 Online] KnowledgeScape Kinross

Calculate Sag Mill Power Draw

Power Draw Ore SG Throughput ton/hr ton/day Capacity Installed Conditions MILL POWER DRAW AND THROUGHPUT CAPACITY Circuit ton/hr Ore Hardness SAG mill specific pinion energy to grind ore from 80% passing 152 mm to 80% passing mm W SDT herein referred to as macro ore hardness The SAG mill product is then crushed to 100% passing 3

Optimizing your SAG mill operation

21 03 2007· It is imperative to ensure the efficient removal of both slurry and coarse pebbles critical size in order to ensure the efficient operation of AG/SAG mills Elimination of the above mentioned material transport problems will allow the mill to respond truly in terms of power draw for changes in mill load which depends on feed ore characteristics

Publications SMC Testing

Power Draw Of Wet Tumbling Mills And Its Relationship To Charge Dynamics Part 1 A Continuum Approach To Mathematical Modelling Of Mill Power Draw Power Modelling Of Stirred Mills Predicting The Overall Specifcie Energy Requirements Of AG SAG Ball Mill And HPGR Circuits On The Basis Of Small Scale Laboratory Ore Characterisation Tests A

calculate sag mill power draw

calculate sag mill power draw Continuous Monitoring of Mineral Processes with DiVA A strain gauge sensor that measure the deflection of a lifter bar when it hits the charge the only grinding control is to maximize the power drawn by the mill Get price

Evolution of SAG Mill Process Control at the Xstrata

Evolution of SAG Mill Process Control at the Xstrata Nickel Raglan Operation Erik Bartsch1 Chief Engineer Mill power and bearing pressure indication Flotation Feed assays Cu Ni Fe Mill motor current draw and winding temperatures

calculate sag mill power draw

SAG Milling At The Fimiston Plant Endress Hauser A description of the SAG mill control system is detailed in this paper including further The ANI Ruwolt ball mills measure x diameter x length high increases or unusually low decreases in the mill power draw and mill

Model types mill power draw Austin SAG model hybrid phenomenological and empirical model Morrell C model for SAG ball mills phenomenological model with empirical fitting Sub divided into a simplified model with typical defaults and a full model with all parameters editable

sag mill power draw

The SAG mill power draw model of Austin using the cali bration by Doll 2013 is used to predict the process power Get Price Predicting Liner Wear in a SAG Mill using Rocky DEM Dec 06 2018Likewise changes to the mill lifter design and/or its operation can result in reduced power draw and therefore energy costs

Calculate Sag Mill Power Draw

Power Draw Ore SG Throughput ton/hr ton/day Capacity Installed Conditions MILL POWER DRAW AND THROUGHPUT CAPACITY Circuit ton/hr Ore Hardness SAG mill specific pinion energy to grind ore from 80% passing 152 mm to 80% passing mm W SDT herein referred to as macro ore hardness The SAG mill product is then crushed to 100% passing 3

calculating sag mill power

predicted Slurry pooling causes the power draw in AG and SAG mills to be lower than a mill without a slurry pool This phenomenon results in overflow mills usually drawing less power than grate discharge mills that are operating without a slurry pool This is because by definition overflow mills operate all of the time with a slurry pool Chat

calculate sag mill power draw

SAG mill power draw models are used in mill design and grinding circuit Grinding Mill Types Construction and Usage Grinding Mills The calculated power requirement is adjusted by utilizing efficiency factors dependent on the size of mill size and type of media type of grinding circuit etc

sag mill power draw

Mill Operators Conference 2018 PanAust maximum power draw well below the installed power Typically at startup post SAG mill reline the maximum operable speed ranges are reduced to minimise direct shell impacts due to the steeper face angle of the lifters

Development of models relating charge shape

01 03 2018· Generic SAG mill geometry and operating conditions SAG mills can have diameters up to m A three dimensional slice of a generic intermediate size m diameter SAG mill is used here Mill power draw for the mill speed variation required for Strategy 3

sag mill power draw

sag mill power draw Mill Power Draw Models The mill power draw models are used to predict how much power will be consumed by a particular type of mill mill geometry and set of mill operating conditions This power is transferred to the ore and used to predict the throughput when combined with the specific energy consumption models

sag mill power consumption

18 01 2021· sag mill power consumption sag mill power consumption Description Energy Use of Fine Grinding in Mineral Processing · compared to the power used by a semi autogenous mill and a ball mill in a primary grinding circuit a ball mill can have an installed power of up to 15 MW while installed power for a SAG mill

calculating sag mill power

predicted Slurry pooling causes the power draw in AG and SAG mills to be lower than a mill without a slurry pool This phenomenon results in overflow mills usually drawing less power than grate discharge mills that are operating without a slurry pool This is because by definition overflow mills operate all of the time with a slurry pool Chat

MILLING CONTROL OPTIMISATION

For the most productive milling operation it is often best to operate close to the maximum mill power draw The power load relationship is highly non linear and shifts around as the ore and steel load/liner changes Traditional control and modeling techniques can therefore not be used Mintek has developed a Power Optimiser that • Continuously

Articles

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

Sag Mill Power Consumption

Calculate Sag Mill Power Draw 2020 5 15 183 sag mill water flow rate sag mill power geometry maximizing kw hr/ton amp tons/hour in combination sag mill liner change out life/cycle /kg mill liner efficiency based on liner geometry and its influence on kw hours/ton total tons/life cycle and p80 transfer to cyclones