# power split between sag and ball mills

### What is the difference between a SAG mill and ball mill

A SAG mill with a 44′ (13.4m) diameter and a power of 35 MW (47 000 HP) has been designed. 9 Attrition between grinding balls and ore particles causes grinding of finer particles. SAG mills are characterized by their large diameter and short length as compared to ball mills.

### SAGDesign Case Studies

Because there is no difference in energy consumption in the SAG mill and the Ball mill in the above noted adjustment size range the T80 can be adjusted to give a desired power split between the SAG mill and the Ball mill. As a result the calculation of mill

### MONSAG A new monitoring system for measuring the load

Nov 01 2004 · Fig. 2 shows a typical grinding circuit with a SAG mill and two ball mills. Grinding power is split into the SAG and ball mills. Commonly when the SAG mill stops its operation the other two ball mills should also halt Fig. 3 outlines the charge motion in the mill. The lifters lift the load and produce cascade and cataracting.

### SME 2009 Impact on Grinding Mill Design and Recent New

to Bond BM Wi is a key parameter in a SAG mill grinding circuit design because this ratio controls the power split between SAG and ball mills at the design T80 (transfer size). INTRODUCTION Three recent major projects involving a review and testing by Starkey Associates have shown that consulting

### SAG Mill Grinding Circuit Design911metallurgist

Semi Autogenous Design Factors### Difference Between Ag Sag Ball Mill Rod Mill

Sme 2009 Impact On Grinding Mill Design And Recent . breakage tests do not include ball mill grinding dataased on the 2009 cim paper starkey and s 2009 the ratio of sag to ball mill grindability is an important factor in achieving a reliable sag mill circuit design because that ratio reveals the best and most practical split for sag and ball mill energy for the ore being tested.

### MONSAG A new monitoring system for measuring the load

Nov 01 2004 · Grinding power is split into the SAG and ball mills. Commonly when the SAG mill stops its operation the other two ball mills should also halt Fig. 3 outlines the charge motion in the mill. The lifters lift the load and produce cascade and cataracting.

### SAG MILLS OPTIMIZATION IMPLEMENTATION AND

SAG Power Ball mill Mill ball Power Line D x L foot HP number D x L foot HP 1 32 x 15 11.000 1 22 x 36 5 13.000 2 32 x 15 11.000 1 22 x 36 5 13.000 1011 40 x 24 28.000 2 26 x 38 20.000 . SemiautogenousMill Optimization Trommel • classification efficiency • laundry water SAG 1011 Charge baffle in trunnion

### SAG 2011 paper #144slideshare

Mar 16 2015 · This is not uncommon with 50/50 power split SAG/Ball mill circuits. The need to achieve a fine transition size between the SAG and Ball mills means that the SAG mill charge will contain a higher proportion of fine particles which leads to increased slip in the charge and therefore reduced power draw.

### SAGDesign Case Studies

Because there is no difference in energy consumption in the SAG mill and the Ball mill in the above noted adjustment size range the T80 can be adjusted to give a desired power split between the SAG mill and the Ball mill. As a result the calculation of mill

### Mill (grinding)Wikipedia

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 particles causes grinding of finer particles. SAG mills are characterized by their large diameter and short length as compared to ball mills.

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

mill is the energy consumption. The power supplied to the mill is used primarily to lift the load (medium and charge). Additional power is required to keep the mill rotating. 8.1.3 Power drawn by ball semi-autogenous and autogenous mills A simplified picture of the mill load is shown in Figure 8.3 Ad this can be used to establish the essential

### difference between ball mill and sag mill

difference between ball mill and sag mill . Second Hand Concrete Batching Plants For Sale In Malaysia. Market of Second Hand Concrete Batching Plants For Sale In MalaysiaDevelopment of Second Hand Concrete Batching Plants are to large-scale automated

### Model Bond/Barratt SABC ModelsSAGMILLING

Barratt 1989 As with most models the power split between the SAG and ball mills is evaluated and the transfer size (T80) necessary to balance the power draw between the two stages is estimated. If that transfer size is within the specified limits then the calculation proceeds to calculate the ESAGand Ebmusing that transfer size.

### SAGMILLING . . Articles

An updated data set for sag mill power model calibration This paper expands the SAG mill survey database published by the Author at Procemin 2013. The new database includes 49 published SAG/AG mill surveys and includes mills from all over the world.

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

mill is the energy consumption. The power supplied to the mill is used primarily to lift the load (medium and charge). Additional power is required to keep the mill rotating. 8.1.3 Power drawn by ball semi-autogenous and autogenous mills A simplified picture of the mill load is shown in Figure 8.3 Ad this can be used to establish the essential

### power split between sag and ball millsMediterranea Olive

As with most models the power split between the SAG and ball mills is evaluated and the transfer size (T 80) necessary to balance the power draw between the two stages is estimated. If that transfer size is within the specified limits then the calculation proceeds to calculate the E SAG and E ball

### Sag And Ball Mills Crusher Mills Cone Crusher Jaw Crushers

TechnoMine Services LLC. SAG Mill section and Ball Mill section calculated power draw of approximately 8 595 kW (11 521 HP). Assuming 95 efficiency for the motor/transmission system of

### Sag Mill Vs Ball Mill-ball Mill

Power Split Between Sag And Ball Mills. Whats the difference of ball mill sag mill ag mill today we will learn about difference between sag mill vs ball mill a mill is a machine by which solid or hard get price and support online power split between sag and ball mills canei difference between a sag mill and ball are often used in the total power between the sag circuit and ballmill circuit

### Sag Mill Vs Ball Mill-ball Mill

Power Split Between Sag And Ball Mills. Whats the difference of ball mill sag mill ag mill today we will learn about difference between sag mill vs ball mill a mill is a machine by which solid or hard get price and support online power split between sag and ball mills canei difference between a sag mill and ball are often used in the total power between the sag circuit and ballmill circuit

### Power-based modelling of single-stage AG and SAG mill circuits

other methods. The ball mill correction factor (CFnet) is empirical and one way of estimating it was presented by Amelunxen at the Procemin 2013 Short Course by Doll Amelunxen. The SGI equation uses a transfer size between a SAG and ball mill it is proposed that a synthetic transfer size of 2100 µm be used to model single-stage SAG mills. 5.9ˇ

### AMIT 135 Lesson 6 Grinding CircuitMining Mill Operator

The mill product can either be finished size ready for processing or an intermediate size ready for final grinding in a rod mill ball mill or pebble mill. 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.

### Ball millStarkey Associates Grinding Design and

It will be possible to evaluate alternate flow-sheet configurations with a view to finding the most economical combination of mill dimensions (aspect ratio) and power split ratio between a ball mill and a SAG mill. This could include the ability of a mill to change the grinding chamber length.

### Increasing availability through advanced Gearless Drive

Mill speed can be adapted to upstream and downstream processesavoids overgrinding and optimizes load distribution between SAG and ball mill (Mular Halbe Barratt 2002). Power consumption is influenced by load respectively torque and mill speed. This means that further energy can be saved if a mill speed below the rate speed is re-

### Grinding Mills — Types Working Principle Applications

Aug 17 2018 · Semi-Autogenous Mills/ SAG Mills (primary grinding mill) — these mills use grinding balls with forces of attrition impact and abrasion between grinding balls and ore particles that result in

### AMIT 135 Lesson 6 Grinding CircuitMining Mill Operator

The mill product can either be finished size ready for processing or an intermediate size ready for final grinding in a rod mill ball mill or pebble mill. 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.

### SAG-ball Mill Circuit Crusher Mills Cone Crusher Jaw

SME 2009 Impact on Grinding Mill Design and Recent New We recommend that this ratio be included in the required data for any new SAG/ball mill circuit design and used as a guide in deciding what power split will be chosen.

### 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.

### Modelling SAG milling power and specific energy

ﬁrstly predicted using the SAG mill feed F80 and the ball mill cyclone overﬂow P80. Morrell s model (Morrell 2011) relates the feed mill geometry and operating conditions to the speciﬁc energy of the circuit. However the F80 is not enough to represent properly different size distributions because different size distributions can

### 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 finally the type of circuit open/closed

### ball mill diaphragm sag mill difference

What is the difference between a SAG mill and ball mill A SAG mill is usually a primary or first stage grinder. SAG mills use a ball charge of 8 to 21 . 6 7 The largest SAG mill is 42′ (12.8m) in diameter powered by a 28 MW (38 000 HP) motor. 8 A SAG mill with a 44′ (13.4m) diameter and a power of 35 MW (47 000 HP) has been designed.

### Sag Mill Ball Mill Operationsogrody-artgarden

· Fig. 2 shows a typical grinding circuit with a SAG mill and two ball mills. Grinding power is split into the SAG and ball mills. Commonly when the SAG mill stops its operation the other two ball mills should also halt Fig. 3 outlines the charge motion in the mill. The lifters lift the load and produce cascade and cataracting

### SAGMILLING . . Articles

An updated data set for sag mill power model calibration This paper expands the SAG mill survey database published by the Author at Procemin 2013. The new database includes 49 published SAG/AG mill surveys and includes mills from all over the world.

### Model Raw Bond/Barratt SAB SABC ModelSAGMILLING

As with most models the power split between the SAG and ball mills is evaluated and the transfer size (T 80) necessary to balance the power draw between the two stages is estimated. If that transfer size is within the specified limits then the calculation proceeds to calculate the E SAG and E ball

### An electrical impact study between variable speed dual

Conventional mining process circuits use both Semi-Autogenous Grinding (SAG) and Ball mills. It is very common that the SAG mills are operated with adjusta An electrical impact study between variable speed dual pinion mills and gearless mill drivesIEEE Conference Publication

### sag mill wrap around motor grinding mill china

Sag Mill Wrap Around Motor sistersact-johannesberg . In the past grinding mills operating between 18 mw and 28 mw required a large electrical wrap-around motor known as a gearless mill drive (gmd).the TON qdx4 (tm) mill drive system is an alternative option to the gmd.until now the gear-driven solution for large sag and ball mills was limited to 18 mw.responding to the needs of industry