# Bond Rod Mill Work Index

**Processing capacity:**152-443t/h

**Feeding size:**≤25mm

**Appliable Materials: **cement,fertilizer,non-ferrous metal,glass ceramics,copper mine,ore etc. All grindable materials, various metal ores, non-metallic ores, non-flammable and explosive materials

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## ball mill Brief Introduction

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## Testwork Bond Rod Mill Work Index

Testwork Bond Rod Mill Work Index The bond rod mill work index is not as common as the bond ball mill work index and there are two different variations on the mill models expect a mill with a wave liner and is not compatible with mills using smooth liners Bond Work Index Tests Grinding Solutions Ltd Bond rod mill grindability test grinding solutions can carry out bond rod mill work index tests to determine the energy requirements for milling ore in a rod mill the test requires a minimum of 20kg of 125mm material closing screen sizes typically range from 475mm to 212m abrasion index test Bond Index Ball Mill Rod Mill Bt 100 Xl Retsch The grinding jar for the bond index rod mill is 12 x 24 in size and has a waveshaped design at least 15 to 20 kg sample material is required to simulate a closed grinding circuit in a ball or rod mill the rod mill work index rwi is used for particle size determination in a size range from 25 mm down to 21 mm whereas ball mill work Bond Tests Sgs Bond rod mill grindability test the test determines the bond rod mill work index which is used with bonds 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 closedcircuit dry grindability test performed in a standard rod mill

Sag Mill And Ratio Of Bond Ball And Rod Work Index The standard bond rod mill work index test procedure is firstly to stage crush the feed to pass 127 mm and size a representative sample the test then involves a series of batch grinds in a standard bond rod mill a bond rod mill is 0305m by 0610m with wave liners of a form described by bond which runs at 40rpm and tilts as described below jaw Rapid Determination Of Bond Rodmill Work Index By Jan 01 2013 to calculate bond rodmill work indices the four samples were screened and the particle size distributions plotted in fig plot was used to find f 80 of the samples for calculations fig 3 fig 4 show the grinding kinetics of pb cu fe and mn ores in the bond rodmill in different testsieves the slopes of all lines in the figures are equal to the k value of eq Comminution Testing Jktech University Of Queensland Jul 30 2020 measuring ore grindability in rod mills the bond rod mill work index is a measure of the resistance of the material to grinding in a rod mill it can be used to determine the grinding power required for a given throughput of material under rod mill grinding conditions

### Bond Work Index Tests Grinding Solutions Ltd

## Comparison Of Ore Hardness Measurements For Grinding

Gmsg Guideline Determining The Bond Bond test wis kwht rod mill ball mill 95 kwht8 9 kwht bond standard circuit work index assume the rod mill work index of 95 applies from the actual rod mill feed sizeof 19300 m although some of this work might ideally be done by crushers to achieve a rod mill f80 of 16000 m to a rod Bonds Rod Mill For Work Index Mc Bond work index formulaequationthe basic work index equation isw 10 wip 10 wifsize distribution and exposure ratioequations for work index variations largescale crushing screening milling plants bonds rod mill for work index Amit 135 Lesson 8 Rod Mills Mining Mill Operator Training Rod mill power is dependent on mill capacity and work index mill power increases with increasing rod charge increasing mill speed increasing mill length rowland and kjos 1980 provided an expression to quantify power draw at the pinion shaft per unit mass of rods pm Comparison Of Ore Hardness Measurements For Grinding Standard bond crushing and rod mill work indices abrasion indices and by dawson for bond ball mill work index tests using crushed feed and standard autogenous grinding design sagdesign tests patented by outokumpu see reference 8 below the comparison of these results gives context to how the various measurements relate to each

Bond Work Index Rod Mill Titan Process Equipment Ltd The titan bond work index rod mill is onepiece cast construction with integral wave liners of a form described by bond this mill is used to perform the necessary metallurgical testing to determine the grinding characteristics of ores and power requirements for operating productionsize rod mills Pdf Rapid Determination Of Bond Rodmill Work Index By Generally bond work index is a common method for selecting comminution equipment as well as estimation of grinding efficiency and calculating required power in the current research a simple fast and accurate procedure is introduced to find the Testwork Bond Rod Mill Work Index Panola Mining Testwork bond rod mill work index bond rod mill index test measuring ore grindability in rod mills the bond rod mill work index is a measure of the resistance of the material to grinding in a rod mill it can be used to determine the grinding power required for a given throughput of materi chat online

## Operating Work Index Is Not The Specific Energy Consumption

Commentary On The Apparatus Of The Bond Rod Mill A bond rod mill work index is to be determined in an apparatus with a wave liner the author is aware of four laboratories that offer a rod mill work index test where the lining of the mill is either smooth or smooth with a small number of primitive lifters that do not constitute a wave liner one of Pdf Rapid Determination Of Bond Rodmill Work Index By Generally bond work index is a common method for selecting comminution equipment as well as estimation of grinding efficiency and calculating required power in the current research a simple fast and accurate procedure is introduced to find the Operating Work Index Is Not The Specific Energy Consumption Oct 24 2018 the work index is a fitted coefficient to bonds equation given in the picture above the bond ball mill work index determination is a common example rod mill wi april 26 2020 Anthracite Coal Indonesia Bond S Rod Mill For Work Index Bond tests mining sgs bond f c crushing tests by pressure and impact trans aime vol 169 1947 pp 5866 bond rod mill grindability test the test determines the bond rod mill work index which is used with bonds third theory of comminution to calculate net power requirements when sizing ball mills

Simulating The Bond Rod Mill Grindability Test Request Pdf The model was validated for four materials showing that it can predict the bond rod mill work index with deviations below 10 requiring only 153kg of sample the procedure is demonstrated to Geolabsglobal South Africa Comminution The bond rod work index test determines the resistance of ore to grinding in a rod mill expressed as a work index kilo watthour per ton kwht the work index is then used to calculate the specific energy requirements for sizing rod mills or determining their throughput for a target grind sample requirements 15kg 125mm Bond Ball Mill Work Index Test Standard Pdf Simulating Bond rod mill grindability test the test determines the bond rod mill work index which is used with bonds 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 closedcircuit dry grindability test performed in a standard rod mill

### Commentary On The Apparatus Of The Bond Rod Mill

## A Comparison Of Test Procedures For Estimating The

Ball Mill Designpower Calculation Dec 12 2016 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 Bond S Law For Crushing Mills bond f c crushing tests by pressure and impact trans aime vol 169 1947 pp 5866 bond rod mill grindability test the test determines the bond rod mill work index which is used with bonds third theory of comminution to calculate net power requirements when sizing ball mills various correction factors may have to be applied Rod Mill Work Index Classification 20180220018332closed circuit 8 dia ball mill to p80 um the ore test work index circuit operating work index 9 the standard bond circuit coarse ore bins fine ore bins screen crushing screen classification rod mill ball mill this is the Comminution Amml The crushed feed sample is subject to a grinding by a standard ball mill the bbwi is calculated after achieving a consistent ipp of 28 bond rod work index brwi

Milling Rod Ball Mills Including Bond Ball Work Milling rod ball mills including bond ball work grindability index marc manufactures a wide range of ball and rod mills to suit most metallurgical laboratory applications our range extends from small 6l jartype mills that are manually positioned on rollers to large 30l size mills A Comparison Of Test Procedures For Estimating The Particle size are calculated and the bond ball work index is then calculated using the standard bond ball work index formula Roxgold Delivers Robust Pea For The Sgula Gold Project Apr 14 2020 samples tested for antenna were reasonably competent with bond rod and ball mill work indices of 227kwht and 197 kwht respectively

### Ball Mill Designpower Calculation

## Testwork Bond Ball Mill Work Index

Pdf Rapid Determination Of Bond Rodmill Work Index By Generally bond work index is a common method for selecting comminution equipment as well as estimation of grinding efficiency and calculating required power in the current research a simple fast and accurate procedure is introduced to find the Testwork Bond Ball Mill Work Index The bond ball mill work index is one of the most commonly used grindability tests in mining and is often referred to as the bond work index the test is a lockedcycle test where ground product is removed from test cycles and replaced by fresh feed Rapid Determination Of Bond Rodmill Work Index By Generally bond work index is a common method for selecting comminution equipment as well as estimation of grinding efficiency and calculating required power in the current research a simple fas China Bond Work Index For Rod Mill Manufacturers And Bond work index for rod mill product image introduction the bond work index for ball mill is a special equipment for testing bond ball mill work index simple lab test can choose ball mill by power method or judge the effects of material properties change to the ball milling process or the operation condition of crusher by using this

Bond S Rod Mill For Work Index Mc World Bond work index an overview sciencedirect topics the rod mill work index laboratory test is conducted by grinding an ore sample prepared to 80 passing 127 mm inch the original test being developed in imperial units to a product size of approximately 1 mm in the original and still the standard 14 mesh see chapter 4 for definition of mesh thus determining the rod mill work index Bond 26 2339 3 S Rod Mill For Work Index A study of simulating the calculation method of the bond jan 01 1992 3 simulating the calculation of the bond rodmill work index afterthe parameterskln 1 k and n are obtainedthe mathematical models of simulating the calculation of the bond rodmill work index can be written as the firstcycle where c is the ratio of the circulating the ith cycle i a 2 Correlation Between Bond Work Index And The bonds standard ball mill is used to determine the work index value of differ ent samples the bond work index is defined as the kilowatthours per short ton required to break from infinite size to a product size of 80 passing 100 m if the breakage characteristics of a material remain constant over all size ranges the calcul ated work

## Procedure For Determination Of Ball Bond Work Index In The

A Comparison Of Test Procedures For Estimating The Particle size are calculated and the bond ball work index is then calculated using the standard bond ball work index formula C O N S U L T I N G L T D Technical Memorandum Ef5bm p80103 1145p80 3 the ef4 formula requires both the rod mill and ball mill work index rod mill wi is used to calculate the optimal feed size and because this is a singlestage ball mill calculation the f80 is actually the rod mill feed size 10000 m from table 1 and the p80 is the ball mill circuit product the ef5 factor only applies below 75 m to ball Procedure For Determination Of Ball Bond Work Index In The The bond ball mill grindability test is run in a laboratory until a circulating load of 250 is developed it provides the bond ball mill work index which expresses the resistance of material to What Can Go Wrong In Comminution Circuit Design the bond ball mill work indices determinations gave reasonably reproducible results significant variation was observed in the measurement of the bond rod mill work index on at least one sample tested and large variations in abrasion index and crushing work index were due to variations in the test method across the laboratories

Bigstone Foran Mining Corporation Bond ball mill work index determinations for the composites ranged from 111 kwhtonne to 135 kwhtonne with an average of 124 kwhtonne based on these results the mineralization would be considered to have a moderate hardness from a rod and ball milling perspective A New Approach To The Calculation Of Work Index And The mill power is 225 watts calculated by 6 fi p nally the product is wet screened to find the size d80 24 rod mill semi continuous process the same mill is used for the semi continuous grinding tests which is similar to the bond test but with the exist ing mill of known power after time the mill Orway Mineral Consultants Canada Ltd Mississauga On Bonds approach consists of determining the ore hardness characteristics or work index wi via standardized laboratory testwork the full suite of bond comminution tests provide the ball mill work index bwi the rod mill work index rwi the crusher work index cwi and the abrasion index

### Procedure For Determination Of Ball Bond Work Index In The