Received 22.11.2023, Revised 06.03.2024, Accepted 17.04.2024
Methodology: Analytical review of literature sources. Analytical and experimental studies of the dependence of the angle of inclination on the distribution of bulk material in the feeder tube, studying the structural and technological parameters of the feeder taking into account the physical properties of the bulk material. Research results: The critical angle of inclination of the tube has been determined, at which the bulk material falls out of the tube without its rotation. A mathematical model of material transportation has been developed taking into account the parameters of the feeder. Effective angles of inclination have been determined depending on the physical and mechanical properties of the bulk material. Dependencies of the feeder's inclination angle on the distribution of bulk material in the tube have been obtained. An analysis of the spreading of bulk material in the tube considering the structural parameters and properties of the bulk material has been conducted. The results of analytical calculations have been experimentally confirmed. Scientific novelty: A mathematical model has been developed that takes into account the physical properties of the material, the geometry of the feeder, and the operating parameters. It allows describing the process of spreading bulk material in the feeder tube and determining the critical angle of inclination that ensures the efficient operation of the tubular-crest feeder. Practical significance: The obtained results can be used to enhance the functionality of tubular-crest feeders in industrial processes where bulk materials are used. The research results are presented in the form of graphs showing the dependence of the feeder's inclination angle on the distribution of bulk material in the tube. This allows for more accurate prediction of the dimensions of the transportation element depending on the technical process
Analytical study, tubular-crest feeder, angle of inclination, bulk materials, transportation, outflow, spreading, efficiency, industrial processes, system design, system improvement