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Calculations involving Bond s work index are generally divided into steps with a different Wi determination for each size class The low energy crushing work index laboratory test is conducted on ore specimens larger than 50 mm determining the crushing work index Wi …

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Feb 05 2013 · Bond 1961 Crushing and Grinding Calculations References are given to articles with a more extensive explanation and examples of calculations by FRED C BOND A charge of grinding balls contains More detailed…

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Bond F C Crushing Grinding Calculations Reprint from British Chemical Engineering Allis Chalmers Publication 07R9235B Bond Low Energy Impact Test The test determines the Bond Impact Work Index which is used with Bond s Third Theory of Comminution to calculate net power requirements when sizing crushers …

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A crushing law proposed by Rittinger in 1867 states that CHE F313 Separation Processes II Bond s Law A somewhat more realistic method of estimating the power required for crushing and grinding was proposed by Bond in 1952 Bond postulated that – the work required to form particles of size D p from very large feed is proportional to the square root of the surface to volume ratio of the…

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The present paper proposes a simple way to calculate the appropriate exponent n using conventional grinding procedures the same calculation can be used to calculate the true value of wi and attribute a potential energy state to a material at any size f c Bond F C Crushing And Grinding Calculations British Chemical Engineering …

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This enables a more objec tive identification of the energy required for grinding in the case when for a certain grinding product size we do not dispose of the appropriate work index value established by experiments 46 REFERENCES Bond F C 1961 Crushing and Grinding Calculations Allis Chalmers Milwaukee Wisc …

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Bond Work Index In the 1930s through early 1950s Bond developed a new theory of comminution that introduced an index called the Bond Work Index which relates power consumption in crushing and grinding to the feed and product size distribution His theory and index were introduced in a widely cited 1952 journal article …

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