Relation of Bond rod mill work index and crushing work index Similar to the ball mill work index the rod mill work index is a tumbling test that includes both attrition and abrasion breakage mechanisms Unlike the ball mill work index the size of the feed to a rod mill test 10 mm12 mm is closer to the size of the crushing test Get More
Get a quote Send MessageQuick method for bond work the aim of this study was to develop a new method for assessing the bond work index in a ball mill bbwi which is based on a first order kinetics present in the bond ball mill for grinding mineral raw materials austin et al 1981 ahmadi and shahsavari 2009 theoretical basis of quick procedure online chat
This study aims to develop a new approach toward estimating the bond ball mill work index bbwi by applying a series of kinetic grinding tests with bond standard mill the bond work index wi
A bond ball mill work index test is a standard test for determining the ball mill work index of a sample of ore it was developed by fred bond in 1952 and modified in 1961 jkmrc co 2006this index is widely used in the mineral industry for comparing the resistance of different materials to ball milling for estimating the energy required
In this regard calculation of work index of limestone made by standard bond grindability test ball mill was employed to conduct the grinding test of seven different samples among all seven samples collected from the different faces of quarry bond work index of limestone face4a results less than 20kwht remaining 6 samples are marked as hard
Dec 12 2016nbsp018332the 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 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 m181 although some of this work might ideally be done by crushers to achieve a rod mill f80 of 16000 m to a rod 181
Submitted to the bond ball mill work index test the number of sag mill revolutions required to grind the material to a p 80 of 17 mm is used to predict agsag specific energy using quation 4 correction e factors for feed size and pebble ing are applied to the agsag specific energy as well as specific crush
A bond ball mill work index test is a standard test for determining the ball mill work index of a sample of ore it was developed by fred bond in 1952 and modified in 1961 jkmrc co 2006 this index is widely used in the mineral industry for comparing the resistance of different materials to ball milling for estimating the energy required for
Xmgq305 grinding work index ball rod mill description xmgq305 grinding bond ball rod mill is mainly applied for testing the grinding work index of the material of every kinds of ores slag etc under the specific rotation speed for dry grinding then screening the products weighing repeat operation several times getting the
The bond ball mill work index provides a measure of how much energy is required to grind a sample of ore in a ball mill the following table indicates some typical figures and a relative measure of what they mean property soft medium hard very hard bond wi kwht 7 9 9 14 14 20 gt 20
It provides the bond ball mill work index which expresses the resistance of material to ball milling this happens after 710 grinding cycles which shows that the procedure is a lengthy and
Oct 24 2018nbsp018332the work index can either be measured in the laboratory the bond ball mill work index determination is a common example or it can be calculated from the operating performance of a milling
Jan 21 2015nbsp018332work index crushing 26 may 2013 bond ball mill work index test standard pdf grinding mill gulin least news construction waste crushing plant for sale in australia bonds crushing law and work index what is bonds law of crushing answers where kb is a constant that depends on the type of machine and on the material being crushed
Bond method for ball mill work index test a bond ball mill work index test is a standard test for determining the ball mill work index of a sample of ore it was developed by fred bond in 1952 and modified in 1961 jkmrc co 2006this index is widely used in the mineral industry for comparing the resistance of different materials to ball milling for estimating the energy required
Figure 6 bond ball mill work index v unconfined compressive strength 0 100 200 300 400 ucs mpa 5 10 15 20 25 30 wibm metric figure 6 displays the plot of ball mill work index wi bm versus ucs still no relationship is observed
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 the test much achieve a
Bond ball mill work index for pure quart we are a largescale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment milling equipment mineral processing equipment and building materials equipment and they are mainly used to crush coarse minerals like gold and copper ore
Bond method for ball mill work index test vetura quick method for bond work the aim of this study was to develop a new method for assessing the bond work index in a ball mill bbwi which is based on a first order kinetics present in the bond ball mill for grinding mineral raw materials austin et al 1981 ahmadi and shahsavari 2009 theoretical basis of quick procedure online chat
Oct 15 2015nbsp018332bond work index bwi amp hardgrove grindability index hgi tests for biomass amp coal bwi can predict the potential for mill choking of biomass in a tube and ball mill hgi is a poor method of predicting grindability of biomass in vertical spindle mills pellets should be composed of predensified particles close to the target size
Bond ball mill work index test freekkustersnl the bond ball mill grindability test is a lockedcycle laboratory grinding test it provides the bond ball mill work index which expresses the resistance of a material to ball milling this index is widely used in the mineral industry for comparing the resistance of different materials to ball milling for estimating the energy required for