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 product size distribution is to be 80 passing 100 mesh 149 microns
No BWi Bond Work Index required here BUT be aware it is only a crude approximation for “most soft ores” from F80 1 cm to P80 700um Ball mill design power example calculation Calculate Ball Mill Grinding Capacity
Get A QuoteThe grinding mill output will vary considerably with the Work Index If the feed size was 13000 micrometers for the same grind production size theoretical output from Fig 21 would change from about 90000 tons per day on the 13 Work Index down to 65000 tons per day on the 16 Work Index
Get A QuoteThe 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 bulk density specific density desired mill tonnage capacity DTPH operating solids or pulp density feed size as F80 and maximum ‘chunk size’ product size as P80 and maximum and finally the type of circuit openclosed
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Get A QuoteThe 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 bulk density specific density desired mill tonnage capacity DTPH operating solids or pulp density feed size as F80 and maximum ‘chunk size’ product size as P80 and
Get A QuoteBall Mill DesignPower Calculation 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 bulk density specific density desired mill tonnage capacity DTPH operating solids or pulp density feed size as F80 and maximum ‘chunk size’ product size as P80 and maximum and
Get A Quote2 MODELLING THE SPECIFIC GRINDING ENERGY AND BALLMILL SCALEUP Ballmill scale up Bond’s LawData zBond work index w i zFeed D f and product d size both 80 cumulative passing Result The specific grinding energy w Mill power draw P wT where T the mill capacity Mill dimensions from Tables or charts
Get A QuoteBond Ball Mill Index JKTech A Bond Ball Mill Index Test BBMWI is a standard test for determining the Ball Mill Work Index of a sample of ore The BBMWI is a “Crushing and Grinding Calculations Part I and II” British Chemical produce a 250 circulating load Get Quote
Get A QuoteBall Mill DesignPower Calculation 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 bulk density specific density desired mill tonnage capacity DTPH operating solids or pulp density feed size as F80 and maximum chunk size product size as P80 and maximum and
Get A Quotemill 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 Power drawn by ball semiautogenous and autogenous mills A simplified picture of the mill load is shown in Figure Ad this can be used to establish the essential
Get A QuoteFirst a Jar Mill grindability test requires a 5 lb 2 kg sample and produces a direct measured specific energy net Hphrt to grind from the design feed size to the required product size The second test a Bond Work Index determination results in a specific energy value
Get A QuoteIt is important to note that the Bond Ball Mill Work Index on SAG ground ore is similar to but not the same as a crushed Bond Ball Mill Work Index It is 7 higher because the SAG mill grinds the softest components quickly and leaves the harder material to be ground in the ball mill Figure 3 presents the graph of SAG pinion energy vs BWi
Get A Quotedetermines the Bond Ball Mill Work Index used to determine net power requirements when sizing ball mills The test is a closedcircuit dry grindability test It is run in a standard ball mill and can be performed at mesh sizes ranging from 48 mesh to 400 mesh Bond Ball Mill Work Index and modified Bond Work Index data
Get A Quoterod mill Work Index test for these purposes Chose a o closing screen for the ball mill test one standard square root of 2 series mesh size coarser than the plant ball mill circuit P80 If between standard mesh sizes the finer of the chose two Results of Bond ball mill tests conducted with closing
Get A Quoteball mills are filled up to 40 with steel balls with 3080 mm diameter which very large tonnages can be ground with these ball mills because they are very mill throughput capacity cfdia if the ball mill diameter is greater than 8 ft the mill diameter factor as 11 transfer size t80 microns 17000 ball mill grindability kwhton 1800
Get A QuoteThe SAG mill trommel undersize is combined with the ball mills’ discharge and pumped to two parallel packs clusters of twelve 660 mm diameter cyclones The cyclone underflow from each line reports to a ball mill while the cyclone overflow is directed to the flotation circuit The designed ball milling circuit product is 80 passing 150 µm
Get A Quote6 cement ball mill design calculation Ball Mill DesignPower Calculation Deze pagina vertalen Ball Mill PowerDesign Calculation Example 2 In Exampleit was determined that a 1400 HP wet grinding ball mill was required to grind 100 TPH of material with a Bond Work Index of 15 guess what mineral type it is from 80 passing inch to 80
Get A QuoteApr 11 2019 · Ball Mill DesignPower Calculation 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 bulk density specific density desired mill tonnage capacity DTPH operating solids or pulp density feed size as F80 and maximum chunk size product size as P80 and maximum and finally the
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