JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Print ISSN : 0021-9592
EXPERIMENTAL STUDY OF SELECTION FUNCTION AND DISTRIBUTION FUNCTION
YOSHITAKA KUWAHARA
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1971 Volume 4 Issue 4 Pages 359-363

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Abstract

To explain the phenomena of the transition in particle size distribution in a grinding process, the selection function and the distribution function were determined.
The equation of distribution function obtained experimentally was as follows;
B(y, ymax)={1-e-a(y/ymax)}/(1-e-a)
where α is the distribution factor.
The experiment was carried out by the "single-size fraction" method using a Hardgrove machine, a vibration mill and a ball mill. Five kinds of materials were used.
The selection function was found to be proportional to the distribution factor, and the distribution function was a function of ymax and(y/ymax).

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