Bond Rod Mill Index Test (BRMWI) A Bond Rod Mill Index Test (BRMWI) is a standard test for determining the Rod Mill Work Index of a sample of ore. The BRMWI is a measure of the resistance of the material to crushing and grinding. It can be used to determine the grinding power required for a given throughput of material under rod mill grinding consitions. JKTech Pty Ltd
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Get Pricestandard Bond crushing, and rod mill work indices, abrasion indices and by Dawson for Bond Ball Mill Work Index tests using crushed feed, and Standard Autogenous Grinding Design (SAGDesign) Tests, patented by Outokumpu.
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Get Pricelaboratory ball mill. if the mill diameter is greater than The cylindrical . Feed Characteristics . The laboratory ball mill was designed for grinding limestone, meaning that the work index required for the specific power calculation was assumed to be the work index of limestone, which is KWh/t, with a specific gravity of g/cm. 3
Get Price2 MODELLING THE SPECIFIC GRINDING ENERGY AND BALLMILL SCALEUP Ballmill scale up (Bond's Law)Data: zBond work index w i zFeed D f and product d size (both 80% cumulative passing) Result: The specific grinding energy w Mill power draw P = wT, where T the mill capacity Mill dimensions (from Tables or charts)
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Get PriceTHE BOND WORK INDEX OF LIMESTONE AND ANDESITE MIXTURES** Abstract This paper investigates grinding of mineral mixtures with different grindabilities in the Bond ball mill. Understanding the ore mixture grinding is of great importance in mineral processing. The energy
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Get Pricemills with the rod mill and ball mill laboratory work indices. Note, in Figure. 1, that the rod mill product slope is less than due to an extra amount of nes present being ﬁ ﬁ ner than 650 μm. These ﬁ nes proceed to the ball mill improving the ball mill efﬁ ciency. Also, the plotted rod mill P80 value, as shown in Figure 1, is 2900 μm.
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Get Pricesize, with the media competency (6" rocks) being at the top of the scale. The work index series (ball mill, rod mill, and MacPherson autogenous) and pilot plant tests require relatively more samples (for a given top size) because they are run until a steadystate is achieved, which involves the mill charge to be replaced several times.
Get Price1) The ore fed to a rod mill has a Bond Work Index of 18 kWht1. The p80 of feed to the mill is 22 mm (f) and the p80 of the product from the mill is mm (p). Calculate the work (in kW/tonne) required to grind the ore to the product size. 2)A ball mill with an internal diameter of 2,600 mm is operated at 75% of the critical speed.
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