A method of laser particle size analysis for evaluating coagulation of coal slime
Abstract：A method of laser particle size analysis was proposed to evaluate the coagulation of coal slime particles. The laser particle size analyzer was used to measure the particle size distri- bution of coal slime at different stirring rates and different concentrations of Ca2＋ or Na＋. The results show that Ca2＋ is more effective than Na＋ to make the coal slime coagulated, and the higher the concentration of Ca2＋ is, the easier the coagulation of coal slime is. The best coagulation performance, which dgois greater than 700μm, occurred at stirring rate of 1000 rpm and Ca2＋ concentration of over 5 mmol/L. The quantitative analysis of coal slime coagulation can be realized by the d10, d50 and d90.
Keywords：coal slimeparticle size distributiondispersioncoagulation
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 624-628 )