This Grindability Test orBond Ball MillWorkIndex Procedureis used to determine theBondWorkIndexof minus six mesh or finer feed ore samples. These equation application methods are used to process <1/2″ ore samples in aBall Millusing a standardballcharge. Below describes in general terms theBondWorkIndex Procedureused by a Professional Metallurgical Testing Laboratory.Email:[email protected]
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Oct 03, 2012 TheBond Ball MillWorkIndexon SAG ground ore is 10.55 kilowatt hours per tonne of material, a relatively low amount of energy required to grind the material in aball millRead More TheBond ball millgrindability test measures hardness as anindex, regardless of the feed size, so it does not give credit for the additional fines.
TheBond Index Ball Millis supplied standard with a barrel and rotating yoke assembly and the electric motor drive with a standalone bench, funnel and screen. Safety is a prime consideration for all Alsto equipment and theBond Index Ball Millis supplied equipped with acoustic enclosure.
ABond Ball MillWorkIndextest is a standard test for determining theball millworkindexof a sample of ore It was developed by FredBondin 1952 and modified in 1961 (JKMRC CO, 2006) Thisindexis widely used in the mineral industry for comparing the resistance of different materials toball milling, for estimating the energy required.
The standardBond Ball MillWorkIndextest procedure is firstly to stage crush the feed to minus 3 35mm and size a representative sample The test then involves a series of batch grinds in a standardBond millABond millis 0 305m by 0 305m with rounded corners a smooth lining and runs at 70rpm The charge consists of 285 balls weighing a ...
First, a JarMillgrindability test requires a 5 lb. (2 kg) sample and produces a direct measured specific energy (net Hp-hr/t) to grind from the design feed size to the required product size. The second test, aBondWorkIndexdetermination, results in a specific energy value (net Hp-hr/t) from an empirical formula.
TheBond Ball MillWorkIndexis a measure of the resistance of the material to grinding in aball mill. It can be used to determine the grinding power required for a given throughput of material underball millgrinding conditions. It is a 'locked cycle' test conducted in closed circuit with a laboratory screen.
Bond GrindabilityIndex Test Ball MillABond Ball Mill, 12” x 12” of fabricated construction comes with electric motor and gear reducer drive, digital counter, jogging button to provide positioning of drum for loading and unloading, emergency stop button,44 ½ lb ballcharge, stand and receiving pan.
Bond/Rowland Single StageBall MillModel. This is a multi-stage crushing plant feeding aball millmodel that estimates the specific energy consumption (E BM) using the Rowland interpretation of the classicalBondworkindexequation including Rowland efficiency factors.. Testwork Required
BondRodMillGrindability Test. The test determines theBondRodMillWorkIndexwhich is used withBond’s Third Theory of Comminution to calculate net power requirements when sizingball mills*. Various correction factors may have to be applied. The test is a closed-circuit dry grindability test performed in a standard rodmill. Contact Us
The standard Bond Ball Mill Work Index test procedure is firstly to stage crush the feed tominus 3 35mmand size a representative sample The test then involves a series of batch grinds in a standard Bond mill A Bond mill is0 305mby0 305mwith rounded corners a smooth lining and runs at 70rpm The charge consists of 285 balls weighing a
Here is the old Allis-Chalmers Bond Work Index Grindability Test Procedure. The standard feed is prepared by stage crushing to all passing a 6 mesh sieve, but finer feed can be used when necessary. It is screen analyzed and packed by shaking in a 1000-cc graduated cylinder, and the weight of 700 cc is placed in the mill and ground dry at 250 per cent circulating load.
TheBond Indexconformingball chargeconsists of: 43 x 1.45”balls; 67 x 1.17”balls; 10 x 1”balls; 71 x 0.75”balls; 94 x 0.61”balls; The optimum number of grindingballsis 285. However, theballdiameters vary due to wear. Therefore, the totalball numbershould be adjusted from time to time to ensure a total mass of 20.125 grams. The grinding jar of the Bond Index Ball Mill measures 12″ x 12″ and has well …