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Cleaning and Storing of Ball Mill Charge after the Bond Work Index Procedure is done: The sample was crushed to 100% passing 6 mesh (3.35mm), from this a 700 cc volume was measured and weighed to be used as feed for the Bond Mill. A feed particle size analysis was performed to determine feed P80 and %.
Get PriceRod Mill Batch Process . The mill dimensions, (D 脳 L), are 0.204 脳 0.3 m and it is loaded with 8.55 kg steel rods 14 to 20 mm diameter. The mill rotates on rolls and its frequency is set to 70 RPM corresponding to 85% of the critical frequency. The mill power is = 22.5 Watts, calculated by (6). Fi- P.
Get PriceSimilar to a Comparative Work Index, this test is an open circuit dry batch grindability test run in the standard Bond Ball Mill for a set time. It can be used at mesh sizes from 65 to 200 mesh.
Get PriceThe test work index of the feed to a rod mill was 10.1 kWh/t. Eighty percent of the feed passed 2 mm and 80% of the product from the mill passed 40 渭m. The mill diameter was 3.9 m and the L/D ratio was 1.4. The formal loading factor initially was 0.35 but later altered to 0.45. Estimate the change in grinding capacity of the mill. 8.8.
Get PriceBond Rod Mill Index Test JKTech. 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. Bond Work Index Tests Grinding Solutions Ltd.
Get PriceDec 12, 2016 路 The basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material to be ground, characteristics, Bond Work Index, bulk density, specific.
Get PriceFormula work index rod mill Bond Work Index Formula-EquationWhat is the Bond Work Index Formula-Equation In case you had forgotten here is a classic For any circuit whether a crushing circuit a rod mill -formula work index rod mill-,Processing of Magnetite Iron Ores Comparing Processing of Magnetite Iron Ores Bond rod mill work index.
Get PriceA Bond Ball Mill Work Index may also be used in the simulation and optimisation of existing mill(s) and the associated grinding circuit(s). Sample Requirements: A minimum of 10 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 the Bond Ball Mill Work Index test feed.
Get PriceBond鈥檚 approach consists of determining the ore hardness characteristics, or Work Index (Wi) via standardized laboratory testwork. The full suite of Bond comminution tests provide the Ball Mill Work Index (BWi), the Rod Mill Work Index (RWi), the Crusher Work Index (CWi) and the Abrasion Index (Ai).
Get PriceThe rod mill work index laboratory test is conducted by grinding an ore sample prepared to 80% passing 12.7 mm (? inch, the original test being developed in imperial units) to a product size of approximately 1 mm (in the original and still the standard, 14 mesh; see Chapter 4 for definition of mesh), thus determining the rod mill work index (Wi R or RWi).
Get PriceFormula work index rod mill Bond Work Index Formula-EquationWhat is the Bond Work Index Formula-Equation In case you had forgotten here is a classic For any circuit whether a crushing circuit a rod mill -formula work index rod mill-,Processing of Magnetite Iron Ores Comparing Processing of Magnetite Iron Ores Bond rod mill work index.
Get PriceA Bond Ball Mill Work Index may also be used in the simulation and optimisation of existing mill(s) and the associated grinding circuit(s). Sample Requirements: A minimum of 10 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 the Bond Ball Mill Work Index test feed.
Get PriceBond鈥檚 approach consists of determining the ore hardness characteristics, or Work Index (Wi) via standardized laboratory testwork. The full suite of Bond comminution tests provide the Ball Mill Work Index (BWi), the Rod Mill Work Index (RWi), the Crusher Work Index (CWi) and the Abrasion Index (Ai).
Get PriceBond 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 closed-circuit dry grindability test performed in a standard rod mill.
Get PriceAG/SAG mills can accomplish the same size reduction work as two or three stages of crushing and screening, a rod mill, and some or all of the work of a ball mill. Because of the range of mill sizes available, AG/SAG milling can often be accomplished with fewer lines than in a conventional rod mill/ball mill circuit. A diagram of types of AG/SAG mills.
Get PriceJK Drop Weight Test. JKTech can prepare a sample to the specified size range from a larger amount if required. For diamond drill core samples, the core must be un-split and have a diameter of at least 50 mm. Slightly more material is preferred if Bond Rod Mill.
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