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.
Limestone Bond Ball Mill Work bhmhev Bond ball mill work index bond ball mill work index mining metallurgy, the bond ball mill grindability test is used to determine the work index for a specific ore grinding application, small used hammer mills in malaysia project case limestone grinding
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
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 …
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.
Quick 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 ...
ABond 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.
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 ...
XMGQΦ305 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 ...
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.
The ball mill work index laboratory test is conducted by grinding an ore sample prepared to 100% passing 3.36 mm (6 mesh) to product size in the range of45-150 µm(325-100mesh), thus determining the ball mill work index (WiB or BWi).