An Experimental Study on the Particle Size and Shape Distribution of Coal Drill Cuttings by Dynamic Image Analysis

Autor:	Qingming Long, Guangcai Wen, Xuelin Yang, Zhigang Zhang, Xiangyun Lan
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	Logarithmic scale QE1-996.5 Aspect ratio Article Subject Mathematical analysis Form factor (quantum field theory) Geology Ellipse Normal distribution Particle-size distribution Log-normal distribution General Earth and Planetary Sciences Particle size Mathematics
Zdroj:	Geofluids, Vol 2021 (2021)
ISSN:	1468-8115
DOI:	10.1155/2021/5588248
Popis:	Particle size and shape distribution can be measured in great detail by dynamic image analysis (DIA). The narrow dispersion of repeated experiment results indicates that the particle size distribution can be obtained with high reliability. Particle size distribution can be better fitted to Rosin-Rammler equation than Gaudin-Schuhmann distribution and the lognormal distribution. The spread parameter ( m ) and the location parameters ( d 0 ) of the Rosin-Rammler equation can be calculated precisely. We analyzed the similarities and differences between the different particle shape distributions. The distributions of form factor and circularity are right-skewed distributions, while the distributions of ellipse ratio, irregularity, and aspect ratio obey a normal distribution. By studying the relation between particle size and shape, we find a linear relationship between the ellipse ratio and the Legendre ellipse diameter on the logarithmic scale.
Databáze:	OpenAIRE
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