Desulphurization and deashing of oxidized fine coal by ...
Sep 01, 2012· Schematic representation of Knelson concentrator and photo of batch type (KCMD3) Knelson concentrator used in this study are illustrated in Fig. 2a,b. The coal samples were fed to the Knelson concentrator as slurries with a coal content of 10% at a rate of l/min. Overflow (clean coal slurry) was collected in a bucket (Fig. 2c) while underflow (tailings) remained in the bowl (Fig. 2d).