Abstract:

Select Wuhai fat coal as research object. Screen test and float and sink test were used as sorting method. The sulfur content of each sorting product was determined. According to the results of determination of sulfur distribution of coal in different size and density components, distribution curves of sulfur were drawn. On the basis of studies of these curves, the conclusion of sulfur distributing characteristics was drawn: the content of sulfur changes in different size of coal; the content of sulfur of high-sulfur size fraction changes comply with exponential function; the content of sulfur of low-sulfur size fraction changes comply with one-element quadratic function. It provides evidence for desulphurization.