# rod mill power vs ball mill

### Bond Tests Mining SGS

Bond Rod Mill Grindability Test. The test determines the Bond Rod Mill Work Index which is used with Bond s Third Theory of Comminution to calculate net power requirements when sizing ball mills . Various correction factors may have to be applied. The test is a closed-circuit dry grindability test performed in a standard rod mill. It can be

Chat Now### EFFECTS OF GRINDING MEDIA SHAPES ON BALL MILL PERFORMANCE

EFFECTS OF GRINDING MEDIA SHAPES ON BALL MILL PERFORMANCE Niyoshaka Nistlaba Stanley Lameck A dissertation submitted to the Faculty of Engineering and The Built Environment University of the Witwatersrand Johannesburg in fulfilment of the requirements for the degree of Master of Science in Engineering Johannesburg October 2005 . i Declaration I declare that this dissertation

Chat Now### The Selection and Design of Mill LinersMillTraj

The Selection and Design of Mill Liners. In Advances in Comminution Ed. S.K. Kawatra. ISBN-13 Society for Mining metallurgy and exploration Inc. Colorado USA. pp. . The Selection and Design of Mill Liners . Malcolm Powell Ian Smit# Peter Radziszewski§ Paul Cleary† Bruce Rattray Klas-Goran Eriksson‡ and Leon Schaeffer٭ Mineral Processing Research

Chat Now### MODELING THE SPECIFIC GRINDING ENERGY AND BALL-MILL

Ball mill power draw predicted from the Denver slide rule kW 0 200 400 600 Calculated ball-mill power draw from the m odel derived kW Data compared Line y=x Fig. 2. Comparison of the ball mill power draw from the Denver slide rule and the proposed model. Dashed line corresponds to y=x.

Chat Now### Rod Millan overview ScienceDirect Topics

Rod mills have an industrial yield that is less than that of a ball mill which explains the fact that balls have a much larger grinding surface than rods. The power needed to operate a rod mill could exceed 30 of the power used in a ball mill. When they are worn rods must not stretch but break in rather small pieces so that they can exit

Chat Now### MODELING THE SPECIFIC GRINDING ENERGY AND BALL-MILL

Ball mill power draw predicted from the Denver slide rule kW 0 200 400 600 Calculated ball-mill power draw from the m odel derived kW Data compared Line y=x Fig. 2. Comparison of the ball mill power draw from the Denver slide rule and the proposed model. Dashed line corresponds to y=x.

Chat Now### EFFECTS OF GRINDING MEDIA SHAPES ON BALL MILL PERFORMANCE

EFFECTS OF GRINDING MEDIA SHAPES ON BALL MILL PERFORMANCE Niyoshaka Nistlaba Stanley Lameck A dissertation submitted to the Faculty of Engineering and The Built Environment University of the Witwatersrand Johannesburg in fulfilment of the requirements for the degree of Master of Science in Engineering Johannesburg October 2005 . i Declaration I declare that this dissertation

Chat Now### Comparing Used Ball Mills Vs Used Rod Mills

Because of this more energy is needed to power up a ball press as opposed to a rod press. Rod mills can be operated at lower peripheral speeds resulting in reduced energy costs. Though this difference in power can vary depending on the type of ore you are grinding the consensus is that a rod machine requires less speed to perform the same function as a ball device. Another key factor in

Chat Now### Rod Mill Definition of Rod Mill by Merriam-Webster

Rod mill definition isa mill that produces rods of steel or other metal.

Chat Now### Ball millWikipedia

A ball mill a type of grinder is a cylindrical device used in grinding (or mixing) materials like ores chemicals ceramic raw materials and paints.Ball mills rotate around a horizontal axis partially filled with the material to be ground plus the grinding medium. Different materials are used as media including ceramic balls flint pebbles and stainless steel balls.

Chat Now### Ball Millsan overview ScienceDirect Topics

Ball mills are rated by power rather than capacity. Today the largest ball mill in operation is 8.53 m diameter and 13.41 m long with a corresponding motor power of 22 MW (Toromocho private communications).

Chat Now### TECHNICAL NOTES 8 GRINDING R. P. KingMineral Tech

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

Chat Now### Best way to determine the ball-to-powder ratio in ball

The maximum power draw in ball mill is when ball bed is 35-40 by volume in whole empty mill volume. Considering that ball bed has a porosity of 40 the actual ball volume is considered to be

Chat Now### AMIT 135 Lesson 8 Rod MillsMining Mill Operator Training

Introduction Chat Now### Rod Mill Definition of Rod Mill by Merriam-Webster

Rod mill definition isa mill that produces rods of steel or other metal.

Chat Now### Rod Millan overview ScienceDirect Topics

Rod mills have an industrial yield that is less than that of a ball mill which explains the fact that balls have a much larger grinding surface than rods. The power needed to operate a rod mill could exceed 30 of the power used in a ball mill. When they are worn rods must not stretch but break in rather small pieces so that they can exit

Chat Now### Lab Ball Mill 5 KGYouTube

29.01.2013 · Watch the working of laboratory ball mill 5 kg designed and manufactured by Bionics Scientific Technologies (P) Ltd.

Chat Now### Grinding millsfor mining and minerals processingMetso

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 start-up operation and optimization of your mill.

Chat Now### Bond Tests Mining SGS

Bond Rod Mill Grindability Test. The test determines the Bond Rod Mill Work Index which is used with Bond s Third Theory of Comminution to calculate net power requirements when sizing ball mills . Various correction factors may have to be applied. The test is a closed-circuit dry grindability test performed in a standard rod mill. It can be

Chat Now### 3D Animation Demo working site of Ball MillYouTube

13.11.2014 · Offical website http //bailingmachinery/ Alibaba website http //zzbailing.en.alibaba/ Product webpage http //bailingmachinery/produc

Chat Now### Orway Mineral Consultants Canada Ltd. Mississauga ON

Orway Mineral Consultants Canada Ltd. Mississauga ON. L4W 5N5 Canada orway ABSTRACT Orway Mineral Consultants Ltd (OMC)as a consultancy has speciali zed in comminution circuit design for over 30 years. OMC Power Model is OMC sThe in-house software for specific grinding energy power-based circuit calculations. The model uses ore hardness parameters from testwork

Chat Now### Rod Mill Design Power DrawMineral Processing Metallurgy

For rod ball or pebble mills the peak is usually near Vp = .50 while actual observations as low as V= .42 have bean made in some ball mills (Rowland 1973). See Figure 2. Power draw is not significantly affected by the presence of the slurry in the mill. While the presence of the slurry will effect the charge density the charge swelling (moving the centre of gravity of the mass near the

Chat Now### AMIT 135 Lesson 6 Grinding CircuitMining Mill Operator

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 mill circuit. A diagram of types of AG/SAG

Chat Now### Ball Mill Design/Power Calculation

Rod and ball mill grindability test results should only be applied to their respective methods of grinding. If P is less than 80 passing 70 microns power consumption will be. Ball Mill Power Calculation Example #1. A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work index of 15 and a size distribution of 80 passing ¼ inch (6350 microns). The required

Chat Now### Ball millWikipedia

A ball mill a type of grinder is a cylindrical device used in grinding (or mixing) materials like ores chemicals ceramic raw materials and paints.Ball mills rotate around a horizontal axis partially filled with the material to be ground plus the grinding medium. Different materials are used as media including ceramic balls flint pebbles and stainless steel balls.

Chat Now### Rod mills how they functionMine Engineer

Rod mills are very similar to ball mills except they use long rods for grinding media. The rods grind the ore by tumbling within the the mill similar to the grinding balls in a ball mill. To prevent the conditions leading to rod charge tangling the length to diameter ratio is maintained at 1.4 to 1.6. Rod mills accept feed up to about 50 mm (2 in.) and produce a product in the size range of

Chat Now### Ball MillsMineral Processing Metallurgy

Ball Mill Capacity VS Rod Mill Capacity. Until recently many operators have believed that one particular type of grinding mill had greater efficiency and resulting capacity than some other type. However it is now commonly agreed and accepted that the work done by any ball mill depends directly upon the power input the maximum power input into any ball or rod mill depends upon weight of

Chat Now### Difference Between Rod Mill And Ball Mill

Rod mill technical specifications ball millBall Mills vs Rod MillsBecause of this the rod mill can effectively reduce 1 feed size to 10 mesh or finer in open circuit. The voids or interstitial space within a rod. If you want to learn about our products please call or write mail consultation. If you are interested in our products please contact us. Send Inquiry Get Latest Price. Hot Sale

Chat Now### Lab Ball Mill 5 KGYouTube

29.01.2013 · Watch the working of laboratory ball mill 5 kg designed and manufactured by Bionics Scientific Technologies (P) Ltd.

Chat Now### 3D Animation Demo working site of Ball MillYouTube

13.11.2014 · Offical website http //bailingmachinery/ Alibaba website http //zzbailing.en.alibaba/ Product webpage http //bailingmachinery/produc

Chat Now### A Method to Determine the Ball Filling in Miduk Copper

variation is between 1.2– 3.7 which is lower than mill ball filling percentage according to the designed conditions (15 ). In addition acquired load samplings result for mill ball filling was 1.3 . Keywords Miduk Copper oncentrator SAG Mill Ball Filling Percentage Introduction Semi-autogenous (SAG) mills are presently one of the most widely used alternatives in the field of mineral

Chat Now### Difference Between Sag Mill vs Ball Millmech4study

In ancient time the mills were operated with muscle power (by hands) water animals and wind. They were totally based on the mechanical energy by natural resources and living beings.There are many types of mills which are used in the grinding industries. Today we will discuss about two important mill sag mill and ball mill. Sag Mill vs Ball Mill Semi-Autogenous Grinding MillSAG Mill

Chat Now### rod mill vs ball millbramvanmaas

Ball mill vs rod mill Henan Mining Machinery Co. Ltd. Ball mill vs Rod mill Similarities The working principle is basically the same Regardless of the ball mill or the rod mill when the cylinder rotates the grinding media ball or rod installed in the cylinder body are lifted to a certain height and then they are thrown at a certain linear velocity so the grinding media causes some impact

Chat Now### Rod mills how they functionMine Engineer

Rod mills are very similar to ball mills except they use long rods for grinding media. The rods grind the ore by tumbling within the the mill similar to the grinding balls in a ball mill. To prevent the conditions leading to rod charge tangling the length to diameter ratio is maintained at 1.4 to 1.6. Rod mills accept feed up to about 50 mm (2 in.) and produce a product in the size range of

Chat Now### Rod mills how they functionMine Engineer

Rod mills are very similar to ball mills except they use long rods for grinding media. The rods grind the ore by tumbling within the the mill similar to the grinding balls in a ball mill. To prevent the conditions leading to rod charge tangling the length to diameter ratio is maintained at 1.4 to 1.6. Rod mills accept feed up to about 50 mm (2 in.) and produce a product in the size range of

Chat Now### AMIT 135 Lesson 2 Circuit Mass BalancingMining Mill

AMIT 135 Lesson 2 Circuit Mass Balancing AMIT 135 Lesson 3 Particle Size Distribution AMIT 135 Lesson 4 Performance Modeling Assessment AMIT 135 Lesson 5 Crushing AMIT 135 Lesson 6 Grinding Circuit AMIT 135 Lesson 7 Ball Mills Circuits AMIT 135 Lesson 8 Rod Mills

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