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 protected]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.
Get PriceTheBond 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 …
Get PriceQuick method forbond work index approximate value determination. 331. ... TheBondworkindex, Wi, is defined in aBond ball millon the samples of standard size − 3.327 + 0 mm. In practice, it ...
Get PriceThe 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 ...
Get PriceTheBond 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.
Get PriceABond 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.
Get PriceABond Ball MillWorkIndexmay also be used in the simulation and optimisation of existingmill(s) and the associated grinding circuit(s). Sample Requirements: A minimum of 8 kg of material crushed to nominally minus 10 mm is preferred. JKTech would stage crush the sample to minus 3.35 mm, as required for theBond Ball MillWorkIndextest feed.
Get PriceTheBond ball mill work indexis one of the most commonly used grindability tests in mining, and is often referred to as theBondworkindex.. The test is a 'locked-cycle' test where ground product is removed from test cycles and replaced by fresh feed.
Get PriceXMGQΦ305 Grinding WorkIndex Ball(Rod)Mill. Description; XMGQΦ305 GrindingBond Ball(Rod)Millis mainly applied for testing the grinding workindexof 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 ...
Get Price3Index Bond Ball MillGruppo Interforce Area Jonica . Labtech 3index bond ball mill bondfor 50 mm d 005 mm w is the workindexmeasured in a laboratoryball millkilowatthours per metric or short ton p 80 is themillcircuit product size in micrometers f 80 is themilllabtech 3index bond ball mill. More Details
Get PriceThis Table ofBall Mill BondWorkIndexof Minerals is a summary as tested on ‘around the world sample’. You can find the SG of each mineral samples on the other table.
Get PriceBondRodMillGrindability 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
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