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Experimental Study on the Measurement of Ultra-Fine Coal Size

Jie Chen

Abstract

The method for measurement of granularity of ultra-fine coal powder by laser granulometry is experimentally studied.The effects of concentration of powder sample,measurement temperature,dispersant type and its concentration,dispersing time on the measurements are discussed in details.Based on the results of the study the optimum experimental condition is put forward.

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Key concepts: Granularity, Coal, Dispersant, Granulometry, Materials science, Sample (material), Laser, Mineralogy