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Bond ball mill work index C Wi Bond crusher work index D HPGR roll diameter m E sp net specific energy consumption kWh t F HPGR hydraulic pressing force kN F 80 particle size at which 80 of particles pass in feed F SP 2HPGR specific pressing force N mm L HPGR roll length m ṁ or mdot HPGR specific throughput constant ts hm3

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Simulating the Bond rod mill grindability test Minerals
available some time from the batch wise original Bond Work Index tests to the new multiparticle test Shi et al 2008 Tests for particle floatability have also recently been developed with the JK Floatability Index enabling prediction of plant performance based on laboratory flotation results Collins et al 2009

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APPENDI X A1 AVERAG E WOR K INDE X OF SELECTE D MINERAL S Source Che m Eng Handbook R O Perr y C H Chilton Int Student s ed McGra w Hill p 811 an d

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Bond Work Index  an overview ScienceDirect Topics
Jul 17 2013· Mineral processing circuits are complex and depend on the interaction of a large number of properties of the ore feed At the Olympic Dam mine in South Australia plant performance variables of interest include the recovery of Cu and U 3 O 8 acid consumption net recovery drop weight index and bond mill work index There are an insufficient

Rod Mill  an overview ScienceDirect Topics
JKTech Laboratory Services Bond Rod Mill Index Test BRMWI A Bond Rod Mill Index Test BRMWI is a standard test for determining the Rod Mill Work Index of a sample of ore The BRMWI is a measure of the resistance of the material to crushing and grinding It can be used to determine

Geometallurgical Modeling at Olympic Dam Mine South
Comparison of UCS to Bond Work Indices Alex Doll Alex G Doll Consulting Ltd Edmonton Canada Derek Barratt DJB Consultants Inc North Vancouver Canada Ken Wood Fluor Mining Minerals Vancouver Canada Abstract Unconfined Compressive Strength UCS is a commonly used rockmass strength measurement used by

APPENDI X A1  Webs
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 It is a locked cycle test conducted in closed circuit with a laboratory

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Characterisation Measurements in Industrial Flotation Cells
Jan 01 2012· Simulating the Bond rod mill grindability test Tavares Luís Marcelo de Carvalho Rodrigo M Guerrero Juan Carlos 20120101 00 00 00 Graphical abstract A procedure based on the simulation of batch grinding allowed predicting the Bond rod mill work index of ores within no more than 10 of deviation in comparison to the measured value

Simulating the Bond rod mill grindability test Minerals
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Bond Rod Mill Index Test JKTech
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Nov 25 2019· In both cases the ore is shown to be very hard with a Bond ball mill work index BWi of 20 to 25 kWhr per tonne and abrasion indices of 1 04 to 1 13 rod mills and ball mills Bond

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To calculate Bond rodmill work indices the four samples were screened and the particle size distributions plotted in Fig 2 The 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

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JeanPaul Duroudier in Size Reduction of Divided Solids 2016 3 7 4 Performance Rod mills are used in an open circuit between crushing and the ball mill They often operate in wet and where the pulp contains up to 50 solid by mass This machine is equally very applicable to dry where it could take a feed that has achieved 6 moisture

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Large Diameter SAG Mills Need large Diameter Ball Mills
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available some time from the batch wise original Bond Work Index tests to the new multiparticle test Shi et al 2008 Tests for particle floatability have also recently been developed with the JK Floatability Index enabling prediction of plant performance based on laboratory flotation results Collins et al 2009

Large Diameter SAG Mills Need large Diameter Ball Mills
LARGE DIAMETER SAG MILLS NEED LARGE DIAMETER BALL MILLS WHAT ARE THE ISSUES Bond s equation for the specific power requirement to reduce a feed with when the rod mill work index …

Comparison of UCS to Bond Work Indices  …
Rod mill A rotating drum causes friction and attrition between steel rods and ore particles citation needed But note that the term rod mill is also used as a synonym for a slitting mill which makes rods of iron or other metal Rod mills are less common than ball mills for grinding minerals

Geometallurgical Modeling at Olympic Dam Mine South
Grinding Solutions offer both rod and ball mill Bond work index tests as part of the companies detailed range of comminution testing services 1 MODELING THE SPECIFIC GRINDING ENERGY AND BALLMILL Ballmill scale up Bond s Law Data Bond work index wi Feed D f and product d size both 80 cumulative passing Apr 26 2016

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labtech index bond ball mill labtech 3 index bond ball mill the Labtech Essa BOND INDEX BALL MILL and BOND INDEX ROD MILL are supplied standard with a price of index bond ball mill bond ball mill work index for pure quartz quartz Bond Work Index FormulaEquation 2018426 See this useful summary Table of Bond Work Index by Minerals

Characterisation Measurements in Industrial Flotation Cells
The ability to simulate the Bond work index test also allows examination of truncated ball mill feed size distributions on the work index For grinding circuits where the feed to a ball mill is sent directly to the classifier and the cyclone underflow feeds the ball mill see Figure 3 10 a question arises as to whether this practice will alter the ball mill work index BW i of the material

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Jul 09 2019· Detailed comminution testing characterized ore hardness by Bond Low Energy Impact Crushing Work Index CWI SMC Test and Bond Rod Mill Work Index RWI Bond Ball Mill Work Index BWI and Bond Abrasion Index AI

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Jul 17 2013· Mineral processing circuits are complex and depend on the interaction of a large number of properties of the ore feed At the Olympic Dam mine in South Australia plant performance variables of interest include the recovery of Cu and U 3 O 8 acid consumption net recovery drop weight index and bond mill work index There are an insufficient

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This Cited by count includes citations to the following articles in Scholar The ones marked may be different from the article in the profile

Rapid determination of Bond rodmill work index by
The mill power is = 22 5 Watts calculated by 6 Fi P nally the product is wet screened to find the size d80 2 4 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 …

Bond Work Index Procedure and Method
LARGE DIAMETER SAG MILLS NEED LARGE DIAMETER BALL MILLS WHAT ARE THE ISSUES Bond s equation for the specific power requirement to reduce a feed with when the rod mill work index …