the article presents the classification of the improved drying and enrichment device for increasing the calorific value of Angren B2 coal, the behavior of heat carriers, physical model, operation process, hydrodynamics of the abstract fluidized bed. Experiments were carried out on this device, preliminary results were obtained, and examples of analyzes that determine the reliability of the research are presented. The empirical equation of the results of the research is defined in term 6 in the polynomial linear equation and shown using a graph. In addition, the reliability of the research results was analyzed by regression and the reliability was 96%.