# how to optimaze the millpower at sag mill

### PAI SAG Mill TrainingYouTube

Click to view on Bing1 20Jan 08 2016 · In this training module we ll cover the workings of a semi-autogenous grinding mill or SAG mill that s designed to be the first stage of a grinding circuit. Ore that s crushed in a primary

Author Performance Associates International Get Price### Overload Detection in Semi-Autogenous Grinding A

Detecting the onset of overloading in a semi-autogenous grinding (SAG) mill is a challenging task for operators to perform due to the complex and nonlinear nature of an overload.

Get Price### sag millsMetso

Gearless mill drive (GMD) technology has further expanded the use of large SAG milling allowing to produce the world s largest SAG mill of 42 in diameter drawing power at 28 MW. Today is the world leading supplier of gearless SAG mills operating globally.

Get Price### PAI SAG Mill TrainingYouTube

Jan 08 2016 · In this training module we ll cover the workings of a semi-autogenous grinding mill or SAG mill that s designed to be the first stage of a grinding circuit. Ore that s crushed in a primary

Get Price### SAG/Ball Mill Optimization KnowledgeScape

The results in SAG-Mill line 2 are even more dramatic. Because of segregation on the coarse feed stockpile SAG-mill 2 receives a higher percentage of coarse material. The KnowledgeScape strategy s ability to maintain smooth and stable operation of the mill was more apparent when contrasted to the DCS control on the "difficult" line.

Get Price### sag mill critical speed calculation

sag mill critical speed calculation. Ball Mill Critical SpeedMineral Processing Metallurgy. A Ball Mill Critical Speed (actually ball rod AG or SAG) is the speed at which the centrifugal forces equal gravitational forces at the mill shell s inside surface and no balls will fall from its position onto the shell.

Get Price### INCREASING SAG MILL CAPACITY AT THE COPPER

INCREASING SAG MILL CAPACITY AT THE COPPER MOUNTAIN MINE THROUGH THE ADDITION OF A PRE-CRUSHING CIRCUIT. optimization of the SAG mill in terms of discharge grates ball size and slurry density and operation of up to three mobile pre-crushing plants resulted in significant increases in Figure 10Ball Mill power draw .

Get Price### Grinding Circuit Intellisense.io

The Grinding Circuit optimization Application is the first technology to accurately predict critical SAG Mill performance variables. It then correlates this data to give an accurate picture of conditions inside the mill. This allows mines to reduce downtime in operations by reducing scheduled liner wear inspections and unnecessary changes.

Get Price### What s the Difference Between SAG Mill and Ball Mill

SAG mill vs Ball mill Crushing ratio. The biggest characteristic of the sag mill is that the crushing ratio is large. The particle size of the materials to be ground is 300 400mm sometimes even larger and the minimum particle size of the materials to be discharged can reach 0.1 mm.

Get Price### How to Calculate Grinding Mill Operating Efficiency

When accurate mill ore feed rate in dry tons per hour mill power draw in kilowatts and mill feed and product size analyses in microns are available the Bond Equation can be used to measure the operation of comminution machines reporting it as operating work index.

Get Price### Modelling SAG milling power and specific energy

Modelling SAG milling power and speciﬁc energy consumption including the feed percentage of intermediate size particles M. Silva A. Casali⇑ Mining Engineering Department Universidad de Chile Beauchef 850 Santiago 8370448 Chile

Get Price### Choosing a SAG Mill to Achieve Design Performance

SAG mill itself and not on the test work program. Stated another way money invested in a large SAG mill is an investment that can produce handsome returns if extra production is needed or simply to give the mine the option to mill the hardest ores at design throughput rates.

Get Price### RESPONSE OF PRIMARY GRINDING MILL PERFORMANCE TO

semi-autogenously grinding (SAG) mill testing evaluation and a program of continued improvement has been undertaken to improve the ruggedness and hence reliability of the system hardware. This paper outlines the key features and hardware improvements of

Get Price### (PDF) Optimisation of the Cadia Hill SAG mill circuit

The discharge grates of the SAG mill were identified as a key component in the SABC circuit and their design is a crucial factor in the mill s performance 17 18 19 20 21 . The initial

Get Price### Optimization and Control of a Primary SAG Mill Using Real

1 Optimization and Control of a Primary SAG Mill Using Real-time Grind Measurement C.W Steyn K Keet W Breytenbach Control Engineer Anglo American Platinum Control and Instrumentation Department Johannesburg

Get Price### Optimization and Control of a Primary SAG Mill Using Real

1 Optimization and Control of a Primary SAG Mill Using Real-time Grind Measurement C.W Steyn K Keet W Breytenbach Control Engineer Anglo American Platinum Control and Instrumentation Department Johannesburg

Get Price### Outotec Grinding MillsOutotec

Optimize grinding mill performance efficiency and availability to ensure you meet your plant s operational targets. Outotec high-performance grinding mills use advanced simulation tools for the best possible process efficiency mechanical reliability and maintainability.

Get Price### Magnetic Separation Technology Can Improve Grinding

There the effect of a trunnion magnet system on the ball mill was significant Total mill feed remained essentially unchanged averaging approximately 1 300 t/h however total mill power consumption dropped 8 from an average of 7 600 kW to 7 000 kW. The mill work index dropped 10 from an average of 5.5 kW-hr/T to 5 kW-hr/T.

Get Price### Choosing a SAG Mill to Achieve Design Performance

SAG mill itself and not on the test work program. Stated another way money invested in a large SAG mill is an investment that can produce handsome returns if extra production is needed or simply to give the mine the option to mill the hardest ores at design throughput rates.

File Size 190KBGet Price### sag millsMetso

Gearless mill drive (GMD) technology has further expanded the use of large SAG milling allowing to produce the world s largest SAG mill of 42 in diameter drawing power at 28 MW. Today is the world leading supplier of gearless SAG mills operating globally.

Get Price### Orway Mineral Consultants Canada Ltd. Mississauga ON

The SAG Power Index (SPI) test (Starkey Dobby 1996) uses a benchscale SAG mill test todetermine the specific energy of an industrial SAG mill. The test is operated in closed circuit and the time required to grind the material to a P 80 of 1.7 mm is used to predict AG/SAG

Get Price### sag mill critical speed calculation

sag mill critical speed calculation. Ball Mill Critical SpeedMineral Processing Metallurgy. A Ball Mill Critical Speed (actually ball rod AG or SAG) is the speed at which the centrifugal forces equal gravitational forces at the mill shell s inside surface and no balls will fall from its position onto the shell.

Get Price### Orway Mineral Consultants Canada Ltd. Mississauga ON

The SAG Power Index (SPI) test (Starkey Dobby 1996) uses a benchscale SAG mill test todetermine the specific energy of an industrial SAG mill. The test is operated in closed circuit and the time required to grind the material to a P 80 of 1.7 mm is used to predict AG/SAG

Get Price### Optimizing Performance of SABC Comminution Circuit of

optimization of the SABC comminution circuit focusing on the primary (SAG mill) and secondary (ball mill) grinding mills and estimating the outcomes of changes to circuit operating parameters (e.g. feed rate mill load ball charge etc.).

Get Price### Autogenous and Semi-Autogenous Mills

AG/SAG mills can accomplish the same size reduction work as two or three stages of crushing and screening a rod mill and some or all of the work of a ball mill. Because of the range of mill sizes available AG/SAG milling can often be accomplished with fewer lines than in a conventional rod mill-ball circuit. All of the above contributes to

Get Price### SAG Mill Grinding Circuit Design

Semi Autogenous Design Factors Get Price### Optimizing your SAG mill operationInternational Mining

• Efficient operation even at higher mill speeds • Operator-friendly smooth mill operation • Significantly improve wear life • Can be precisely designed to handle the given capacity • Can be easily retro-fitted to existing mills. The optimal performance of AG/SAG mills is the key to successful plant operation.

Get Price### Outotec Grinding MillsOutotec

Optimize grinding mill performance efficiency and availability to ensure you meet your plant s operational targets. Outotec high-performance grinding mills use advanced simulation tools for the best possible process efficiency mechanical reliability and maintainability.

Get Price### SAG Mill Operation at Cortez Evolution of Liner Design

The Cortez SAG mill liner design was recently modified to improve the mill operating energy efficiency. In addition to the expected benefits the design change unexpectedly played a significant role of verifying the proposed grinding circuit expansion for the Cortez Hills project as well as illustrating current SAG mill

Get Price### SAG Ball Mill Grinding CircuitYouTube

Click to view on Bing0 43Oct 08 2017 · SAG Ball Mill Grinding Circuit 911 Metallurgy Corp. Mill discharge pumps MD500 SAG mill system animationDuration How to improve your grinding process

Author 911 Metallurgy Corp. Get Price### MILLING CONTROL OPTIMISATIONMintek

MILLING CONTROL OPTIMISATION MillSTAR. Figures 8 and 9 on the right show results from a gold plant s SAG mill achieved with MillStar s Segregated Ore Feed Controller Mill Feed PV Mill Feed SV Mill Load Power. Figure 7 Mill Power Optimisation results for Case Study 1

Get Price### AN UPDATED DATA SET FOR SAG MILL POWER MODEL

AN UPDATED DATA SET FOR SAG MILL POWER MODEL CALIBRATION A. G. Doll SAGMILLING Logan Lake Canada ABSTRACT This paper expands the SAG mill survey database published by the Author at Procemin 2013.

Get Price### Autogenous and Semi-Autogenous Mills FL

Single stage SAG Mills are very beneficial in reducing CAPEX for plants with a staged throughput approach. When future tonnage is to be increased the SAG Mill can feed downstream ball milling to boost capacity. Fuller-Traylor SAG/AG Mills range in size from 4.3m through 12.2m in diameter with powers as high as 28 000 kW.

Get Price### Design SAG mill production when you need it most In day 1

throughput as does crushing of pebbles from the SAG mill (usually minus 60 mm). New mill design should always be done at 150 or 152 mm F80 because it is easier to build and operate this way without pre-crushing. Transfer Size T80 Is the 80 passing size of ore as it passes from the SAG mill to the ball mill

Get Price### Overload Detection in Semi-Autogenous Grinding A

Detecting the onset of overloading in a semi-autogenous grinding (SAG) mill is a challenging task for operators to perform due to the complex and nonlinear nature of an overload.

Get Price### SAG MillOfficial Feed The Beast Wiki

The SAG Mill is a machine added by Ender IO. It uses Micro Infinity (µI) to grind (or mill) items into their crushed variants like Ores into Dusts. The SAG Mill has four output slots recipes can have 1-4 different outputs with different chances of obtaining those outputs.

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