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The Bond Rod Mill Work Index is a measure 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.
Get QuoteThe Bond rod mill work index is not as common as the Bond ball mill work index, and there are two different variations on the mill apparatus.The SAGMILLING.COM models expect a mill with a wave liner , and is not compatible with mills using smooth liners .
Get QuoteGenerally, Bond work index is a common method for selecting comminution equipment as well as estimation of grinding efficiency and calculating required power. In the current research, a simple, fast and accurate procedure is introduced to find the rod-mill work index based on the conventional Bond work index.
Get QuoteJan 01, 2013 To calculate Bond rod-mill work indices, 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 the Bond rod-mill in different test-sieves. The slopes of all lines in the figures are equal to the k value of Eq.
Get QuoteFor comparing the standard Bond rod-mill work index and the new modeled Bond work index Rod-mill method, work index Wi and produced fine particles in a cycle Gi for the four samples determined. Grinding kinetics The performed paired Students t-test results indicated that the Standard Deviation for Gi and Wi obtained Shortened method by ...
Get QuoteThe Bond ball mill work index is one of the most commonly used grindability tests in mining, and is often referred to as the Bond work index.. The test is a locked-cycle test where ground product is removed from test cycles and replaced by fresh feed.
Get QuoteRapid determination of Bond rod-mill work index by modeling the ... Nov 7, 2012 ... Generally, Bond work index is a common method for selecting comminution equipment as
Get QuoteCommentary on the apparatus of the Bond rod mill Work Index by Alex Doll December, 2015 alex.dollsagmilling.com The Bond Third Theory of comminution was originally divided into three size classes reflecting the varieties of comminution equipment common during the time period when Bond and his collaborators were gathering the information to calibrate comminution models. The middle
Get QuoteThe Bond rod mill grindability test is a widely used tool to estimate the response of ores to rod milling. However, the mass of ore required to conduct the test , which can typically vary from about 8 to as much as 20 kg, may represent a challenge when sample availability is critical.
Get QuoteThe model was validated for four materials, showing that it can predict the Bond rod mill work index with deviations below 10. Requiring only 1.53kg of sample, the procedure is demonstrated to ...
Get QuoteThe Titan Bond Work Index Rod Mill is one-piece cast construction with integral wave liners of a form described by Bond. This mill is used to perform the necessary metallurgical testing to determine the grinding characteristics of ores and power requirements for operating production-size rod mills.
Get QuoteBond rod mill grindability test the test determines the bond rod mill work index which is used with bonds 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 closedcircuit dry grindability test performed in a standard rod mill.
Get QuoteBond Work Index for Rod Mill. Product Image. Introduction. The Bond Work Index for Ball Mill is a special equipment for testing Bond ball mill work index. Simple lab test can choose ball mill by power method or judge the effects of material properties change to the ball milling process or the operation condition of crusher by using this ...
Get QuoteJun 19, 2015 Rapid Determination of Bond Rod-mill Work Index by Craig Taylor on Scribd by David Michaud March 17, 2017 June 19, 2015 Categories Grinding Post navigation Previous
Get QuoteBond Rod Index Mill, 12 x 24 consisting of a one 1 piece cast shell complete with integral wave, 1 Hp 360220 volt motorgear reducer drive, support frame which allows the mill to tilt - 5 degrees during operation and 45 degrees for discharge manual operation, receiving pan, rod charge and control panel complete with digital revolution counter, startstop buttons and emergency ...
Get QuoteThe grinding jar for the Bond Index Rod Mill is 12 x 24 in size and 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. The Rod Mill Work Index RWI is used for particle size determination in a size range from 25 mm down to 2.1 mm whereas Ball Mill Work ...
Get QuoteA Bond rod mill work index is to be determined in an apparatus with a wave liner. The author is aware of four laboratories that offer a rod mill work index test where the lining of the mill is either smooth, or smooth with a small number of primitive lifters that do not constitute a wave liner one of
Get QuoteRod mill power is dependent on mill capacity and work index. Mill power increases with Increasing rod charge Increasing mill speed Increasing mill length. Rowland and Kjos 1980 provided an expression to quantify power draw at the pinion shaft per unit mass of rods P M
Get Quotework index of attrition ball millCompare and Understand RodBallImpactCrushingAbrasion The three tests are The Bond ball mill work index Wi BM, or BWi conducted from a feed size of approximately 2 mm to a product size on th
Get Quote3.4.7. Bond rod mill standard testStandard conditions for determining the work index of rod mills under laboratory conditions are mill size 305 mm internal diameter 610 mm internal length with wave type lining. material dry mineral. size reduced to 100 13,200 m.
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