The test work will entail industry standard tests such as the Bond Rod Mill Work Index, Bond Ball Mill Work Index, JK/DWi tests and then some specific batch mill tests. The results of the test work will then be used to determine the parameters required for Simulation.
Get QuoteThe Bond Ball Mill Grindability Test (Bond, 1952, 1961) gives the Bond Ball Mill Work Index. This Index expresses the resistance of a material to ball milling; the higher the value of the Bond Ball Mill Work Index, the more difficult it is to grind the material using a ball mill. This Index is widely used in the mineral industry for:
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Get Quote* Bond F. C., “Crushing Tests by Pressure and Impact”, Trans AIME, Vol 169, 1947, pp 58-66. Bond Rod Mill Grindability Test. The test determines the Bond Rod Mill Work Index which is used with Bond’s Third Theory of Comminution to calculate net power requirements when sizing ball mills*. Various correction factors may have to be applied.
Get QuoteFeb 01, 2008· Fine particle grinding work index (M ib): From the Bond ball work index test results the following values were obtained: Gbp = 1.3 gms/revf 80 = 2250 μmp 80 = 78 μmP 1 = 106 μmNote that the Bond test was correctly done to produce a final product similar to
Get QuoteWhere, WioACTis the Actual Operating Bond Work Index (kWh/t), W is the specific energy input (kWh/t), P80 is the 80% passing size of product (µm), and F80 is the 80% passing size of circuit feed (µm). 2. Calculate the Standard Circuit Bond Work Index (WiSTD) for the material being processed (equation 3).
Get QuoteLiterature review. The Bond work index Wi is used as a measure of grindability of an ore Deniz, 2003; Gupta and Yan 2006 observed that reasonable values of work indices could jaw crusher followed by a roll crusher, and ground for 10minutes in a ball mill. The size From Figure 1 the equation of the line is,. 7766.7. Get Price
Get QuoteBall Mill High Capacity. FOB Reference Price:Get Latest Price Ball mills are rated by power rather than capacity. Today the largest ball mill in operation is 8.53 m diameter and 13.41 m long with a corresponding motor power of 22 MW Toromocho private communications. .
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Get QuoteDec 08, 2019· In this work sampling was performed, based on specified key geological parameters. The Bond ball mill work test (BWI) was selected as the geometallurgical comminution test (GCT). For the samples which the results were out of norm, the detailed process mineralogical studies were performed.
Get QuoteFeb 01, 2013· The Bond ball mill work index of each sample was measured using the standard equipment and procedure (Bergstrom, 1985) using a constant closing sieve of 300 μm. In all tests, material passing the closing sieve was removed from the feed, in an attempt to limit the influence of variations in feed size distribution in the test.
Get QuoteFeb 01, 2008· Relationships other than Bond’s third law have been proposed in the past and include those provided by Kick, 1885, von Rittinger, 1867, Charles, 1957, Holmes, 1957, Hukki, 1962.In this paper one of the more recent relationships (Morrell, 2004b) will be used to determine the specific energy of a range of comminution circuits and at the same time assess the relative efficiency of each.
Get Quote430 Palladium-catalyzed ortho-halogenations of acetanilides with N-halosuccinimides via direct sp2 C–H bond activation in ball mills Zi€Liu1, Hui€Xu1 and€Guan-Wu€Wang*1,2 Full Research Paper Open Access Address: 1Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
Get QuoteA number of samples were taken from the SAG mill feed belt and subjected to SMC Tests and Bond ball mill work index tests. Note that the Bond tests were conducted using 150 microns as the closing screen size so that the final product size from the tests was similar to
Get QuoteDec 09, 2020· A bond ball mill work index (Wi) of 16.8 kWh/t has been used for design and sizing of the grinding circuit. The material at the correct size fraction (hydrocyclone overflow) will be transported to a rougher conditioner stage prior to being sent to the Cu flotation circuit.
Get QuoteNov 28, 2018· • Conducted series of standard bond ball mill work index tests from copper porphyry mines in BC to build a geometallurgical datasets used for the correction model. • Formulated a power-based correction model to adjust bond ball mill work index from one product size to another that enables practitioners to calibrate and fit the work index data.
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Get QuoteDec 18, 2013· Fine grinding, to P80 sizes as low as 7 μm, is becoming increasingly important as mines treat ores with smaller liberation sizes. This grinding is typically done using stirred mills such as the Isamill or Stirred Media Detritor. While fine grinding consumes less energy than primary grinding, it can still account for a substantial part of a mill’s energy budget.
Get QuoteThe LAARMANN Ball / Rod Mill is designed to meet the industrial and a wide variety of ores related to the Bond Ball Mill and Bond Rod Mill WORK INDEX. Read more Santiago Mineral Services Centre
Get QuoteBond ball mill work index (bwi) there is a strong inverse relationship between and mill bwi.the typical plant throughput rates are in the range of 3,000 tph to 4,500 tph for both grinding lines.pebble crusher limited the overall grinding is circuit constrained by the pebble crushers and the sag mill and ball mill
Get QuoteFeb 09, 2021· The Composites fell in the range of 28.1 to 32.9 A x b values from the SMC tests, considered to be hard to very hard (resistance to impact breakage), and with a Bond Ball Mill Work Index median of 15.1 kilowatt hours per tonne ("kWh/t") which spanned the medium to medium-hard range of hardness.
Get Quote- Experience in various comminution testing, which includes Bond Abrasion Index, Bond Rod Mill Work Index, Bond Ball Mill Work Index, Bond Impact Crushing Work Index, JK Drop-Weight Testwork and SMC Test Analysing samples in accordance with the laboratory’s methods and procedures, ensuring accuracy of results and samples are representative
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