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# ball mill work index calculation

Dec 12, 2016· Ball Mill Power Calculation Example A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work index of15and a size distribution of80% passing ¼ inch(6350...

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• Bond Work Index (Energy equation) Grinding

Hello Everyone, I am dealing with thecalculationof BondWork Index. The flowsheet is attached. I have calculated primaryball millbondindexbut for thecalculationof secondball millbondindexI got trouble. In a bond energy equation, where should I select tonnage ? and where should I pick

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• ball mill work index calculation

Ball Mill Work Index Calculation From Canada- JUMBO Mining. Ball Mill Designpower Calculation. Ball mill power calculation example a wet grinding ball mill in closed circuit is to be fed 100 tph of a material with a work index of 15 and a size distribution of 80 passing inch 6350 microns.

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• Testwork Bondball mill work index

WiBM: The calculated work index (SAGMILLING.COM uses only metric units; if the laboratory reported work index in "short ton" units, multiply that value by 1.1023 and enter the result). When entering results into the SAGMILLING.COM database table, the following extra fields are available: ModBWI: is this test modified from the original Bond protocol

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• ball mill workindecalculation

Work IndexKnow More 'Work Index' is to measuring energy in size reduction what the 'meter' is to measuring It starts with Bond'sWork Indexequation: For any circuit, whether a crushing circuit, a rodmill, or a closedball millcircuit, theWork Indexalways means...

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• Kinetic grinding test approach to estimate theball mill

Ball mill work indextest was widely used in the 1960s and still remains in use today (Gharehgheshlagh 2016). Theball mill work indexof the feed samples was determined according to the standard ...

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• An innovative approach for determining the grinding media

(4) The calculation of motor power of ball mill. The media addition was calculated via equality (17) . (17) N = K ωb × G. Where N (kW) represented the power of ball mill pinion shaft; K ωb (kW/t) was the power for per ton ball medium; G (t) represented the weight of media loaded in the ball mill. Usually, the power of the ball mill pinion shaft was directly proportional to the motor power of the ball mill, and the …

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• Testwork Bond crushingwork index

The Bond low-energy impact crushingwork index(more informally, the Bond crushingwork index) is not as common as the Bondball mill work index, and it is a notoriously noisy test.. The test is a 'per-specimen' test where individual specimens of prepared rock are hand-picked by the test operator and placed into the apparatus.

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• Bond Tests Mining SGS

The test determines the Bond Ball Mill Work Index which is used with Bond’s Third Theory of Comminution to calculate net power requirements*. Various correction factors may have to be applied. W = Wi (10/√P – 10/√F) Where W = Net power consumption in kWh/t …

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• Ball Mills Mine

Ball Millsare generally used to grind material 1/4 inch and finer, down to the particle size of 20 to 75 microns. To achieve a reasonable efficiency withball mills, they must be operated in a closed system, with oversize material continuously being recirculated back into themillto be reduced.

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