# how to convert a sag mill to a ball mill

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SAG milling extends itself to many appliions due to the range of mill sizes available. They 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 done by a ball mill. SAG mills are also an optimum solution for wet grinding since crushing and screening in these

Get price### Difference Between Sag Mill vs Ball Mill mech4study

Oct 12, 2017 · 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.

Get price### What''s the difference of Ball mill, SAG mill, AG mill?

Attrition mill is a type of grinding mill by kinds of media to crush lump to powderlike substances. The impact can be rock on rock such as in an Autogenous Grinding (AG) mill, rock and a small ball charge (~10%), used in Semi Autogenous Grinding (SAG) mills, balls of various sizes in Ball Mills and less commonly these days, steel rods in Rod Mills.

Get price### how to convert a sag mill to a ball mill

Dec 30, 2012· BBD mill Ball screening machine. Ball Mill and Rod Mill.Ball mills and rod mills are most commonly used for If the converted SAG mill is to be the only ball mill, »More detailed. 4.6/5(4K)how to convert a sag mill to a ball millhow to convert sag mill to ball mill dlfmullanpur.

Get price### sag mill discharge screen Bewust Outdoor

A SAG Mill trommel screen lets you control the true discharge size of your SAG mill or the transfer size to the downstream Ball Mill circuit. A well sized trommel should not let rocks pass to the Ball Mill if they are to be more than say 5/8″ or 16mm In the image case below, strangely enough, is the mill shell liner and discharge grate

Get price### paragominas ball mills sag mills Solution for ore mining

SAG Mill Success—Start with the Basics – WOMP – World of Mining • FFE Minerals Brazil was awarded a contract to supply a 26 x 16ft, 6,500hp SAG mill—as well as a 21 x 32.5ft, 9,600–hp ball mill—for CVRD''s Paragominas How to Convert a SAG Mill to a Ball Mill eHow.com

Get price### Optimization of mill performance by using

Optimization of mill performance by using online ball and pulp measurements by B. Clermont* and B. de Haas* Synopsis Ball mills are usually the largest consumers of energy within a mineral concentrator. Comminution is responsible for 50% of the total mineral processing cost. In today''s global markets, expanding mining groups are trying

Get price### SAGMILLING.COM .:. Home

Sagmilling.com 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 price### Ball Mill Critical Speed Mineral 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. The imagery below helps explain what goes on inside a mill as speed varies.

Get price### Evolution of SAG Mill Process Control at the Xstrata

with finer grind requirements, that finally pushed the decision to convert the primary mill to semi autogenous grinding (SAG) in October 2005. The circuit delivered by the conversion project is shown in Figure 1, and included the SAG mill itself, a new oversize recycle Crusher, a double

Get price### Optimization of mill performance by using

Optimization of mill performance by using online ball and pulp measurements by B. Clermont* and B. de Haas* Synopsis Ball mills are usually the largest consumers of energy within a mineral concentrator. Comminution is responsible for 50% of the total mineral processing cost. In today''s global markets, expanding mining groups are trying

Get price### SAG & Ball Mill Grinding Circuit YouTube

Oct 08, 2017 · SAG & Ball Mill Grinding Circuit 911 Metallurgy Corp. Ball Mill Critical Speed & Working MBMMLLC.com: Ball Mills for Gold Mining Duration: 2:55. mbmmllc 9,997 views. 2:55. SAG Mill

Get price### Optimizing your SAG mill operation International Mining

Optimizing your SAG mill operation. Posted by Matrix on 21st March 2007 Sanjeev Latchireddi, Chief Process Engineer – Grinding Americas, Outokumpu Technology, looks at the shift from ball mills to SAG mills. Nowadays, the more successful plants are those that have adopted effective and efficient strategies to optimize their plant operation.

Get price### Autogenous and SemiAutogenous Mills ScienceDirect

The SAG mill had a 6–8% ball charge and the power consumption was 8 kWh/t, which agreed well with the expected value. 9.6. Problems. 9.1. In an SAG mill the dimensions of the mill were 9.75 m × 3.5 m and the specific gravities of the mineral and that of the balls charged were 4.1 and 7.9, respectively.

Get price### SAG Mill Feed The Beast Wiki

The SAG Mill is a block added by the EnderIO mod. A machine similar to a Pulverizer or a Macerator. It is used to process resources to produce dust. It accepts energy in the form of Redstone Flux or Minecraft Joule, with an internal buffer of 100,000 RF and consumption of 20 RF per tick.

Get price### Converting Sag Mill Henan Dream Mining Co., Ltd.

How To Convert A Sag Mill To A Ball Mill 3 Steps Ehow. A ball mill is a type of grinder used to grind and blend materials for use in Industrial ball mills can operate continuously fed at one end and discharged at the READ MORE How to Convert a SAG Mill to a Ball Mill 3 Steps eHow Read more.

Get price### Autogenous and SemiAutogenous Mills

intermediate size ready for final grinding in a ball mill, pebble mill, or VERTIMILLTM. Wet grinding is accomplished in a slurry of 50 to 80 percent solids. 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.

Get price### Appliion of Operating Work Indices in Autogenous

ball mill can be reorganised as [7] and [8], where B''Wio and A''Wio are the corrected operating work indices and WAG/SAG, WBM are the respective power draw of AG/SAG and ball mills. Note that the ball mill operating work index is applied only on the portion that needs the additional grinding (Q2), which renders to the AG/SAG mill the

Get price### How to Make a Ball Mill: 12 Steps (with Pictures) wikiHow

Mar 29, 2019 · How to Make a Ball Mill. Ball mills are a special instrument used to break up hard solids into a fine powder. They are similar to rock tumblers in that the instrument is a rotating container filled with heavy balls to grind the substance

Get price### Grinding mills for mining and minerals processing

Every mining operation has a unique grinding process. has experience of over 8,000 grinding mills globally, including manufacturing and delivering the largest SAG/AG mills in the world. Our experts welcome the opportunity to assist you with circuit and circuit control design as well as startup, operation, and optimization of your mill.

Get price### Autogenous and SemiAutogenous 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. FullerTraylor SAG/AG Mills range in size from 4.3m through 12.2m in diameter with powers as high as 28,000 kW.

Get price### Converting AG to SAG mills: The GolEGohar Iron Ore

3.5. Converting AG to SAG milling and grinding performance. An important prerequisite to convert AG to SAG mills was to assure that the mill fillings was above 20%. On two occasions the mill was crash stopped and the fillings were found to be 22 and 26%. To provide 5% (v/v) balls, 21 t balls with sizes and amounts shown in Table 2 were added

Get price### Optimizing your SAG mill operation International Mining

Optimizing your SAG mill operation. Posted by Matrix on 21st March 2007 Sanjeev Latchireddi, Chief Process Engineer – Grinding Americas, Outokumpu Technology, looks at the shift from ball mills to SAG mills. Nowadays, the more successful plants are those that have adopted effective and efficient strategies to optimize their plant operation.

Get price### rod mill converted to ball mill BINQ Mining

Dec 30, 2012 · BBD mill Ball screening machine. Ball Mill and Rod Mill.Ball mills and rod mills are most commonly used for If the converted SAG mill is to be the only ball mill, »More detailed

Get price### Ring gear drives huge grinding mill Machine Design

Following the SAG mill will be two 9,000hp ball mills, each one 20ft in diam. and 331/2ft long, that do the finish grinding. Electronics convert incoming power from 50 or 60 Hz to about 1

Get price### OUTOTEC GRINDING TECHNOLOGIES

singlestage SAG mills to the largest mill in the world – with a 40foot diameter and 28 MW of motor power. Ball mills Ball milling is the most common appliion for horizontal tumbling mills. Outotec offers a full range of ball mills to suit a wide variety of duties, from a few hundred kW all the way up to 20 MW and beyond. Rod mills

Get price### RoM BALL MILLS A COMPARISON WITH AG/SAG MILLING

II314 RoM Ball mills – a comparison with AG/SAG Milling Aubrey N. Mainza1 and Malcolm S. Powell 1 1Mineral Processing Research Unit, University of Cape Town, Rondebosch, 7700, South Africa

Get price### Autogenous and SemiAutogenous Mills

intermediate size ready for final grinding in a ball mill, pebble mill, or VERTIMILLTM. Wet grinding is accomplished in a slurry of 50 to 80 percent solids. 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.

Get price### What''s the Difference Between SAG Mill and Ball Mill

Difference Between SAG Mill and Ball Mill, from the working principle, appliion, structure, etc. Grind and blend solid or hard materials into smaller pieces by means of shear, impact and compression.

Get price### Sentinel: Siemens Gearless Mill Drives YouTube

Jan 19, 2016 · The mills at Sentinel in Zambia are amongst the world''s biggest, with 2 off 40 ft SAG mills complete with 28 MW drives, and 2 off 28 football mills with 22 MW drives. For mines of this size

Get price### difference between a sag mill and ball mill

How to Convert a SAG Mill to a Ball Mill eHow. A ball mill and a semiautogenous grinding (SAG) mill are similar in that both are Most of the grinding is accomplished between product and balls

Get price### A Method of C alculating Autogenous/ SemiAutogenous

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 be not as steep as a 0.5 slope when plotted on loglog paper. This is because the particle size distribution (PSD), these mills

Get price### sag mill gmd how does it work BINQ Mining

Mill (grinding) – Wikipedia, the free encyclopedia. Wi is the work index measured in a laboratory ball mill It is similar in operation to a SAG mill as described below but does not use steel balls in the mill

Get price### GRINDING MILLS – BALL Mills, SAG Mills, AG Harcliff

We can refurbish your mill or convert a previouslyowned unit to meet your specific needs. For example, a ball mill may be converted into a SAG mill or a rod mill into a ball mill. Refurbishment is treated as a turnkey project – starting with the removal of your mill and redesign work (when required) and moving on to manufacturing replacement

Get price### MEASURING THE EFFICIENCY OF THE TUMBLING MILL AS A

iii ABSTRACT Grinding mills used in the mining industries are the most energyintensive operation and also require a large number of wear resistant materials, which are utilized for mill liners and

Get price### Grinding Circuit an overview ScienceDirect Topics

The crushed pebbles fall directly onto the SAG mill feed belt and return to the SAG mill. SAG mill product feeds two parallel ball mills of 6.6 m吇.1 m (internal diameter×length), each with a 9.7 MW twin pinion drive. The ball mills are operated at a ball charge volume of 30–32% and 78.5% critical speed.

Get price### THE EYES HAVE IT: IMPROVING MILL AVAILABILITY THROUGH

bit as tantalizing to consider as gaining vision inside a running SAG mill. Being able to combine both of these technologies to access real time and historical information about the conditions of the liners, grinding ball percentage, and overall charge level inside the SAG mill without the

Get price### (PDF) A comparison of wear rates of ball mill grinding media

A comparison of wear rates of ball mill grinding media.pdf. A comparison of wear rates of ball mill grinding media.pdf. (SAG), rodmilling, and conventional ball milling. Each of these

Get price### rod mill converted to ball mill Pochiraju Industries Ltd

Mill Circuit Pump Manual Weir Minerals power over conventional milling. A typical SAG mill with a smaller conventional ball mill shown in the . ball and rod mills often associated with these types of plants. .. this is also usually converted to equivalent head and, likewise, must be

Get price### Mill power draw models SAGMILLING.COM

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.

Get price### Evolution of SAG Mill Process Control at the Xstrata

with finer grind requirements, that finally pushed the decision to convert the primary mill to semi autogenous grinding (SAG) in October 2005. The circuit delivered by the conversion project is shown in Figure 1, and included the SAG mill itself, a new oversize recycle Crusher, a double

Get price### SINGLE STAGE SAG/AG MILLING DESIGN

4 High ball charge SAG mill or ROM Ball mill (15 to 25% ball charge) Low competency ore Hidden Valley, Nzema, Sepon, UG2 ores (South Africa), Yanacocha 5 Low ball charge, high speed SAG mill (4% ball charge, 90% Nc) A cross between AG and SAG for average competency, abrasive ores. Typically operated in RSA on Witwatersrand Gold Ore Driefontein

Get price### Dealing With S in Mill Processing PumpEng Submersible

Dealing With S in Mill Processing. Have you ever wondered where the mining term "s" comes from? It comes from the term for animal droppings which in science are known as animal s. In a mining plant or processing mill, they have a big grinding circuit for crushing raw material, these are usually Ball or SAG mills. Inside these Sag/Ball

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Ball Mill Critical Speed Mineral 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### What''s the difference of Ball mill, SAG mill, AG mill?

Attrition mill is a type of grinding mill by kinds of media to crush lump to powderlike substances. The impact can be rock on rock such as in an Autogenous Grinding (AG) mill, rock and a small ball charge (~10%), used in Semi Autogenous Grinding (SAG) mills, balls of various sizes in Ball Mills and less commonly these days, steel rods in Rod Mills.

Get price### SAG Mill Grinding Circuit Design

By combining with SAG discharge and screening on the SAG discharge screens, top size control to the ballmill circuit feed is maintained while still unloading the SAG circuit (Mosher et al, 2006). A variant of this method is to direct pebblecrushing circuit product to the ballmill sump for secondary milling: while convenient, this has the

Get price### (PDF) A comparison of wear rates of ball mill grinding media

A comparison of wear rates of ball mill grinding media.pdf. A comparison of wear rates of ball mill grinding media.pdf. (SAG), rodmilling, and conventional ball milling. Each of these

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