# Desain Sag Mill Foundation

### TECHNICAL NOTES 8 GRINDING R. P. King

LG A mill power equation for SAG mills. Minerals and Metallurgical Processing. Feb 1990 pp57-62. 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 conical ends. ! c is the specific gravity of the ...

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

operating SAG mills (it is not intended for design, but could help with it). Even if the mill total load is a key variable and can be indi-rectly measured with bearing pressure measurements, it was decided to discard it as an input variable. The main reason is that this kind of model must be useful to relate independent input vari- ables with the dependent variables SAG mill power and ...

Get Price### SINGLE STAGE SAG/AG MILLING DESIGN - Metallurgy

SINGLE STAGE SAG/AG MILLING DESIGN ABSTRACT Single stage semi-autogenous / autogenous (S/AG) milling has become a common design for a variety of ore types with the advantages of being comparatively low capital cost and flexible for future expansion. The single stage SAG/AG milling option is ideal for starter projects with significant exploration and expansion potential. Currently a number of ...

Get Price### The Selection and Design of Mill Liners - MillTraj

Dramatic shortcomings of mill liner designs, especially of large SAG mills, - such as rapid failure and even mill shell damage arising from impacting of the charge directly on the liner, and unsuitable spacing of lifter bars yielding unfavourable compromises between lifter bar height and liner life - have highlighted the significance of correct mill liner selection. Liners protect the mill ...

Get Price### Mill (grinding) - Wikipedia

SAG mills are autogenous mills that also 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. A SAG mill with a 44' (13.4m) diameter and a power of 35 MW (47,000 HP) has been designed. Attrition between grinding balls and ore ...

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

operating SAG mills (it is not intended for design, but could help with it). Even if the mill total load is a key variable and can be indi-rectly measured with bearing pressure measurements, it was decided to discard it as an input variable. The main reason is that this kind of model must be useful to relate independent input vari- ables with the dependent variables SAG mill power and ...

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Grinding mill process design. Choosing an appropriate grinding circuit configuration depends on your ore characteristics and mine plan. Outotec has extensive knowledge of comminution technologies and processes to ensure we provide the optimal solution for your needs. We offer autogenous (AG), semi-autogenous (SAG), ball, rod, and pebble mills in sizes ranging from kWs up to 30+ MW. Our product ...

Get Price### Mill (grinding) - Wikipedia

SAG mills are autogenous mills that also 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. A SAG mill with a 44' (13.4m) diameter and a power of 35 MW (47,000 HP) has been designed. Attrition between grinding balls and ore ...

Get Price### SAGMILLING.COM .:. Home

Sagmilling.com is home to a collection of both free and subscription-based calculation tools to aid metallurgical process engineers perform comminution calculations. Grinding circuit design tools, including for SAG mill-ball mill circuits, and geometallurgy energy models are available to subscribers.

Get Price### SAG mill optimisation using power-based …

SAG mill optimisation using power-based simulations. Author Dr. Rajiv Chandramohan, Robert Braun, Greg Lane. Paper presented by Dr. Rajiv Chandramohan at Comminution '18, Cape Town, South Africa, April 2018. ABSTRACT. Ausenco's Ausgrind comminution program has been the in-house design tool used on a number of successful projects and technical studies. In recent years, Ausgrind has been …

Get Price### Calculating bearing pressure for foundation with …

11.04.2016· Foundation Design for Shallow Foundations - Example / Tutorial 4 A concentric vertical load of 15 kips/ft and a moment load of 10 kips/ft are applied to a 5.5 ft wide continuous footing.

Get Price### QdX4 Mill Drive system

SAG mill 36 ft. dual drive SAG mill 40 ft. QdX4TM Mill Drive Foundation deformation CMD test bench Condition monitoring Foundation Standard design • Standard gear driven foundation loading. • Seismic loading easily calculated. • No static or dynamic modal analysis required. • No brake pier required. • Lower pier heights, less concrete volume. Lubrication Improved eco-friendly ...

Get Price### FOUNDATIONS FOR INDUSTRIAL MACHINES AND EARTHQUAKE …

aids/methodologies for foundation design. Various issues related to mathematical modeling and interpretations of results are discussed at length. Intricacies of designing vibration isolation system for heavy-duty machines are also discussed. Influences of dynamic characteristics of foundation elements, viz., beams, columns, and pedestals etc. on the response of machine, along with some case ...

Get Price### Difference Between Sag Mill vs Ball Mill - …

SAG mill make use of steel balls included with some large and hard rocks for grinding. These mills utilize the balls in making the large fragments of materials broken into pieces. The ball charge of a SAG mill is about 9% to 20%.This process takes place inside the large rotating drum of SAG mill which is filled with balls partially. Interior of the drum uses the lifting plates. These plates ...

Get Price### Outotec® MH Series Grinding Mills - Outotec

The MH Series includes a range of SAG, ball, and rod mills in standardized sizes with a capacity of up to 3.1 MW installed power, and is based on over 100 years of experience with grinding technologies. Proven and robust technology based on Outotec standard design and experience; Lower CAPEX and shorter delivery lead time; Easy to operate and maintain; Compact mill control system with a lot of ...

Get Price### AN OVERVIEW OF THE DESIGN, CONSTRUCTION, …

The mill selection parameters were also revised as indicated in Table 3. Table 3 – 2006 Revised Grinding Circuit Key Design Parameters. SAG Mill Feed Size, F100 300 mm Feed Size, F80 125 mm Ore SG 2.9 Required Mill Discharge Size, P80 Not defined Ball Charge 10 to 18% Total Charge 26% Design Bond Ball Mill WI (closing 106 microns) Refer Table 2

Get Price### Publications - SMC Testing

Design Of The 40 Foot SAG Mill Installed At The Cadia Gold Copper Mine The Prediction Of Power Draw In Comminution Machines Developments In AG/SAG Mill Modelling Tracking And Quatifying Value From Min To Mill Improvement Grinding Mills - How To Accurately Predict Their Power Draw What Can Go Wrong In Comminution Circuit Design HPGR - The Australian Experience HPGR Model …

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Get Price### Ball Mill Maintenance & Installation Procedure

Metallurgical ContentBall Mill Maintenance ManualOn Mill Installation and MaintenanceBall Mill Concrete FoundationsGrinding Mill FOUNDATIONGROUTINGBall Mill Sole Plate Am sure your Ball Mill is considered the finest possible grinding mill available. As such you will find it is designed and constructed according to heavy duty specifications. It is designed along sound engineering principles ...

Get Price### Optimizing your SAG mill operation - …

Similar to the impeller design affecting pump capacity, the pulp lifter design affects the discharge capacity (or mill throughput) of AG and SAG grinding mills. Generally, the discharge from AG/SAG mills consists of one or both of the following components: slurry (water and …

Get Price### A Method of C alculating Autogenous/ Semi-Autogenous ...

SAG mills mimic the same shortcoming. It follows that in order to obtain the speciﬁ c energy (SE) to 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 ...

Get Price### Used Sag-mills For Sale - A.M. King

UNUSED 22' x 10.25' (6.7m x 3m) SAG Mill with 3,300 HP (2463 kW) ABB LSS Synchronous Motor with ACS 6,000 VFD & Liners & Liner Handler. Manufacturer: . Inventory ID: 6C-HB02. View Details. HP: 3300: KW: 2463: Diameter: 22' 3 Units - HARDINGE 22' x 7' F/F (6.7m x 2.13m F/F) SAG Mills, No Motors. Inventory ID: 6K-03 . 3 Units - HARDINGE 22' x 7' F/F (6.7m x 2.13m F/F) SAG Mills…

Get Price### SINGLE STAGE SAG/AG MILLING DESIGN - Metallurgy

SINGLE STAGE SAG/AG MILLING DESIGN ABSTRACT Single stage semi-autogenous / autogenous (S/AG) milling has become a common design for a variety of ore types with the advantages of being comparatively low capital cost and flexible for future expansion. The single stage SAG/AG milling option is ideal for starter projects with significant exploration and expansion potential. Currently a number of ...

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