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| FRACTAL MODEL OF PARTICLE-SIZE DISTRIBUTION FORCOAL FRAGMENTATION |
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| DOI： |
| KeyWord:Fragmentation,Particle-size distribution,Fractal geometry,Dimension,Self-similarity |
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| Abstract: |
| Based on the principle of self-similarity fractal geometry,a fractal model of particle-size distribution for coal fragmentation was established,and as a result,the particle-size formulae of continuous distribution for fine coal particles were produced from the model.It is proved that the fractal dimension of particle-size distribution for coal fragmentation depends on the fragmentation probability and similarity ratio of coal particles.The main factors that dominate the particle-size distribution for the coal fragmentation are the fractal dimension of particle-size distribution and the maximum diameter of coal particle.The fractal dimension of particle-size distribution reflects the fineness of particle group of coal fragmentation.This model was proved to be valid and could be put into practical application through comparing the fractal particle-size distribution with practical particle-size distribution. |
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