Wi, is then calculated from the following equation. [7] where P is the closing sieve size ( m), Gbp is the grindability (net g/rev.), F80 and P80 are the 80% passing size of the feed and the product ( m), respectively. Recently the Bond equation was revised to improve energy predictions for SAG/ball mill circuits (Morrell 2004b).
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Get PriceThe Bond Equation 3 The equivalent energy needed to go from very large rock to 100 um, ... closed circuit ball milling to final P80 • m inside diameter mills 8. 2/20/2014 5 The Standard Bond Circuit ... Example SAGBall Mill Circuit WI Efficiency Calculation • SAGball circuit F80 = 165,000 um P80 = 125 um W = kWh/t Wlo = / ...
Get Price· Several types of ball mills exist. They differ to an extent in their operating principle. They also differ in their maximum capacity of the milling vessel, ranging from liters for planetary ball mills, mixer mills, or vibration ball mills to .
Get Price· Calculation of energy required for grinding in a ball mill. Int. J. Miner. Process., 25: 4146. The Bond work index, Wi, as an indior of the grindability of raw materials is not a material constant but rather it changes with change of size of the grinding product.
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Get Price· energy calculation formula principle for ball mill. ball mill an overview ScienceDirect Topics. The ball mill is a tumbling mill that uses steel balls as the grinding media. Ball mills are rated by power rather than capacity. .. 8000, but the same approach can, in principle, be used for other ball mills. .
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Get PriceThe grindingproduct size, P, in a Bond ball mill, which is given by the aperture size which passes 80% of the grinding product as a function of the aperture size of the test screen Pk, can be expressed by the formula P= P k K 2. These functions for G and P enable us to calculate the value of Wi for any other size of grinding product if we know ...
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Get Priceball mill feed and EF5 for final milling size; these factors are ... Distribution of energy between WAM and CDBM mills In 1989, within the framework of the conference on SAG milling, Barratt presented another formula for SEC required for WAM .
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Get PriceCalculation of energy required for grinding in a ball mill The grindingproduct size P in a Bond ball mill which is given by the aperture size which passes 80 of the grinding product as a function of the aperture size of the test screen P k can be expressed by the formula P= P k K 2.
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