Three-product Course Coal Teeter Bed Separator And Mathematical Model Development

As new equipment for fine coal separation, the application of TBS for coarse coal slime hasbeen more and more extensive. The fluidization statement of the particles in TBS has beenanalyzed using fluidization theory. Separation mechanism of TBS was explained. Based on thesingle factor and orthogonal experiments of traditional TBS, a new three-product TBS wasdeveloped. Single factor experiments of new machine were conducted. It was shown thatperformance of the new machine is better than traditional machine. Higher organic efficiency wasobtained for coal which is easy to process, and lower ash content of clean coal was obtained forcoal which is hard to process. A population balanced model has been developed to represent theseparation in a traditional TBS based on empirical formula for hinded-settling velocity andpopulation balance. Furthermore, a mathematical model of three-product TBS was developed.Validation of model using experimental data was conducted. The foundation for further researchand industrialization of the new equipment was established by mathematical model study.