The bond abrasion index devised by fc bond in the 1940s quantifies the abrasivity of an ore the index can be used to calculate metal wear rates in crushers and ball consumption rates in ball mills
Read MoreBond abrasion index tester 911metallurgistbond abrasion index tester 911metallurgistThe bond abrasion index devised by fc bond in the 1940s quantifies the abrasivity of an ore the index can be used to calculate metal wear rates in crushers and ball consumption rates in ball mills, ball mill bond index for silver ore in bangladesh
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READ MOREThe bond abrasion index devised by fc bond in the 1940s quantifies the abrasivity of an ore the index can be used to calculate metal wear rates in crushers and ball consumption rates in ball mills
Read MoreThe bond abrasion test determines the abrasion index which is used to determine steel media and liner wear in crushers rod mills and ball mills bond developed the following correlations based on the wear rate in pounds of metal wearkwh of energy used in the comminution process
Read MoreThe leeb hardness measurements show remarkably strong correlations with bond ball work index bbwi and the a x b parameter derived from smc tests the bbwi provides an estimate of specific energy consumption in a ball mill and the a x b parameter which has no formal units is a rock breakage parameter that is valuable for semiautogenous
Read MoreThis grindability test or bond ball mill work index procedure is used to determine the bond work index of minus six mesh or finer feed ore samples these equation application methods are used to process 12 ore samples in a ball mill using a standard ball charge
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Read MoreFor ore a a bond ball mill work index value of 17 kwht was reported for ore b a bond ball mill work index value of 15 kwht was used further comminution tests will be required in the future to confirm this is representative of the ores to be processed the bond index values generally indicate that grinding is moderate power consumer
Read MoreThe suckling mill is located in the blewett mining district of chelan county wa the mill dates to 1934 and was used in ore processing up to the 1950s the mill was constructed as development work for the pole pick mine by wg suckling the claims was acquired by the gold bond mining co in 1936
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Read MoreSimilar to a comparative work index this test is an open circuit dry batch grindability test run in the standard bond ball mill for a set time it can be used at mesh sizes from 65 to 200 mesh normally 100 mesh the test requires calibration against the standard bond ball mill work index test to estimate the work index
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Read MoreJun 01 2020 use the mean g pr of the last three cycles as the ball mill g pr and use this mean g pr in the following calculation to determine the bond ball mill index wi bm in kwht 14 wi bm 4905 p 100 023 g pr 082 10 p 80 10 f 80 where p 100 is the closing screen aperture size which separates net product from recycled coarse oversize material
Read MoreCumo ore the average head grade of this composite which constitutes a major part of the resource was 013 cu and 004 mo the ore was amenable to sag grinding with a spi index of 73 minutes and had a bond ball mill work index of 157 kwhtonne again qemscan showed
Read MoreBond s work index ball mill wwprojekteu bond work index formulaequation see this useful summary table of bond work index by minerals for any circuit whether a crushing circuit a rod mill or a closed ball mill circuit the work index always means the equivalent amount of energy to reduce one ton of the ore from a very large size to 100 um
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Read MoreAt the early stages of implementation the models are being utilised for ore blending decisions to provide guidance and support for budgeting longterm mine planning blast design for mill feed and providing the mill with an expectation of performance 1 mausimm geometallurgical lead jktech pty ltd 40 isles road indooroopilly qld 4068
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Read MoreThe sag mill was designed to treat 2065 t h 1 of ore at a ball charge of 8 volume total filling of 25 volume and an operating mill speed of 74 of critical the mill is fitted with 80 mm grates with total grate open area of 766 m 2 hart et al 2001
Read MoreOre grade averaged 033 cu s with a copper recovery of approximately 82 copper concentrate production in 2013 was 662 million pounds containing over 21000 oz gold and 320000 oz of silver 2014 production was 81 million pounds of copper 22600 oz gold and 443700 oz silver from 111 million tons of ore at an average feed grade of 040 cu
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Read MoreThe bond abrasion index devised by fc bond in the 1940s quantifies the abrasivity of an ore the index can be used to calculate metal wear rates in crushers and ball consumption rates in ball mills
Read MoreBond ball mill work index for the ore samples collected from surveys 3 and 4 was 172 and 187 kwht respectively table 6 shows that the overall circuit operation index was close to work
Read MoreSimilar to a comparative work index this test is an open circuit dry batch grindability test run in the standard bond ball mill for a set time it can be used at mesh sizes from 65 to 200 mesh normally 100 mesh the test requires calibration against the standard bond ball mill work index test to estimate the work index
Read MoreA 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
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Read MoreLabtech essa laboratory mill that was 200mm in diameter and 250mm long the mill was operated at 75rpm with an ore mass of 1kg the ball charge in the mill comprised of three ball sizes and the mass distribution of the size fractions are detailed in table 1 table 1 ball charge mass distribution mm mass grams 40 3 973 3614
Read MoreWe have gold ore manufacturers of ball mill for copper ore in indiaflotation machineis widely used in gold processing and commonly used in the treatment of highfloatability sulfide mineral gold ore 80 rock gold is processed by ionprocess maximizes the enrichment of gold intosulfide minerals
Read MoreBond rod mill work index binq mining jan 02 2013 bond rod mill work index bond ball mill work index and bond abrasion index are carried out on sub samples cut from the main tumbling test sample ball mill bond work index for limestone basalt crusher live chat mining ore
Read MoreFor ore a a bond ball mill work index value of 17 kwht was reported for ore b a bond ball mill work index value of 15 kwht was used further comminution tests will be required in the future to confirm this is representative of the ores to be processed the bond index values generally indicate that grinding is moderate power consumer
Read MoreAnd suggests grinding will tend to be more ball mill circuit limited at lower head grades the limiting changeover point coincides with a ball mill work index of about 12 kwht to 13 kwht figure 2 batu hijau ore hardness copper grade and throughput correlation from 2002 to 2015
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