The article presents the results of an experimental study of the dependence of the hydraulic resistance of a fixed dense and fluidized bed of a material on the particle size in a dispersed system. It has been found that the hydraulic resistance of the dense layer increases with increasing particle size and is practically independent of it in the fluidized state. An increase in the mass of the material in the working chamber leads to an increase in the hydraulic resistance of the layer. In the fluidized state, the hydraulic resistance of the layer also increases slowly with increasing air velocity.
dispersed system, dispersed material, fluidized bed, hydraulic resistance, particle size
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