The Bond Rod Mill Work Index is ameasure of the resistance of the material to grinding in a rod mill. It can be used to determine the grinding power required for a given throughput of material under rod mill grinding conditions. It is a 'locked cycle' test conducted in closed circuit with a laboratory screen.
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Rod mill work index is used in the SAGMILLING.COM Bond/Barratt specific energy consumption model. The work index is used to calculate the energy requirement to grind rocks in the medium size range, from10 mm - 20 mm down to about 2 mm.
Oct 03 2015· The TitanBond Work Index Rod Millis one piece cast construction with integral wave liners of a form described byBondThismillis used to perform the necessary metallurgical testing to determine the grinding characteristics of ores and power requirements for operating production sizerod mills
Bond Rod Mill IndexTest. Measuring ore grindability inrod mills. TheBond Rod Mill Work Indexis a measure of the resistance of the material to grinding in arod mill. It can be used to determine the grinding power required for a given throughput of material underrod millgrinding conditions. It is a 'locked cycle' test conducted in closed ...
rod millv ballmill work indexWhen theBond Rod Mill Work Indexis used instead of the SAGDesign measurement theRod MillWi variability graph will look more like Figure 2 (McKen et al. 2006) than Figure 1 because theRod MillWi test is done in an even
ABondBallMill Work Indexmay 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 theBondBallMill Work Indextest feed.
Bond Rod Mill Grindability Test. Grinding Solutions can carry out Bond Rod Mill Work Index tests to determine the energy requirements for milling ore in a rod mill. The test requires a minimum of20kg of -12.5mmmaterial. Closing screen sizes typically range from4.75mm to 212µm. Abrasion Index Test
This Grindability Test orBondBallMill Work IndexProcedure is used to determine theBond Work Indexof minus six mesh or finer feed ore samples. These equation application methods are used to process <1/2″ ore samples in a BallMillusing a standard ball charge. Below describes in general terms theBond Work IndexProcedure used by a Professional Metallurgical Testing Laboratory. If you ...
Jan 01, 2013· To calculateBond rod-mill workindices, the four samples were screened and the particle size distributions plotted in Fig. 2.The plot was used to find F 80 of the samples for calculations. Fig. 3, Fig. 4 show the grinding kinetics of Pb, Cu, Fe, and Mn ores in theBond rod-millin different test-sieves. The slopes of all lines in the figures are equal to the k value of Eq.
The Bond Index conforming rod charge consists of:6 rods of 1.25“ diameter and 21“ length; 2 rods of 1.75“ diameter and 21“ length; The grinding jar for the Bond Index RodMill is 12″ x 24″ in sizeand has a wave-shaped design. At least 15 to 20 kg sample material is required to simulate a closed grinding circuit in a ball or rod mill.
bondballmill index. Testwork:Bond rod mill work index. TheBond rod mill work indexis not as common as theBondballmill work index, and there are two different variations on themillmodels expect amillwith a "wave liner", and is not compatible withmillsusing "smooth liners".
Oct 03, 2015· The TitanBond Work Index Rod Millis one-piece cast construction with integral wave liners of a form described byBond. Thismillis used to perform the necessary metallurgical testing to determine the grinding characteristics of ores and power requirements for operating production-sizerod mills.
Bond Rod Mill Grindability Test The testdetermines theBond Rod Mill WorkIndex which isused with Bond’s Third Theory of Comminution to calculate net power requirements when sizing ball mills*. Various correction factors may have to be applied. The test is a closed-circuit dry grindability test performed in a standard rod mill.
Bond Work IndexTests Grinding Solutions Ltd.Bond rod millgrindability test grinding solutions can carry outbond rod mill work indextests to determine the energy requirements formillingore in arod millthe test requires a minimum of 20kg of 125mm material closing screen sizes typically range from 475mm to 212m abrasionindextest
The low energy crushing work index laboratory test is conducted on ore specimens larger than 50 mm, determining the crushing work index (Wi C, CWi or IWi (impact work index)). The rod mill work index laboratory test is conducted by grinding an ore sample prepared to80% passing 12.7mm (½ inch, the original test being developed in imperial units) to a product size of approximately 1 mm (in the original …
TheBond Rod Mill Work Indexis a measure of the resistance of the material to grinding in arod millIt can be used to determine the grinding power required for a given throughput of material underrod millgrinding conditions It is a locked cycle test conducted in closed circuit with a laboratory screen.
FIGURE 5:BOND ROD MILL WORK INDEXv. UNCONFINED COMPRESSIVE STRENGTH 0 100 200 300 400 UCS (MPa) 5 10 15 20 25 30 35 WiRM (metric) The lack of fit observed relating the crushingWork Indexwas expected to carry over to the otherBond WorkIndices. Figure 5 displays the plot ofrod mill Work Index(Wi RM) versus UCS. These