Applied the Rosin-Rammler Distribution Function to Study on the Law of Coal Dust Particle-Size Distribution

Rosin-Rammler distribution function was applied to analyse the particle-size distribution(PSD) of Bofang mine 3# coal seam's coal sample.It comes to the conclusion: in the double-logarithmic coordinate system,the regression curve of the particle size distribution is a line,and R~2=0.9672,it proved the linear regression is perfect.Finally get the function expression of the PSD.It made us get the quantificational recognizability on the law of coal dust's particle size distribution,and provided theoretic evidence to direct the work and get rid of the coal-dust.