Modelling of the Flow of Streams of Cohesionless and Cohesive Bulk Materials in a Conveyor Discharge Point of a Descending Belt Conveyor

Modelling of the Flow of Streams of Cohesionless and Cohesive Bulk Materials in a Conveyor Discharge Point with a Flat Conveyor Belt

“…In the case of cohesive materials, the dynamic conditions of the flow of the material in the throwing point, besides the above mentioned forces, also adhesion force dF a (Fig.2) Geometric conditions of the material flowing out from the throwing point include the following parameters (Cyganiuk et al [12]): the angle of conveyor descent α [12]). Kinematic and geometric conditions of the material flowing out of a head pulley with a flat belt for cohesive and cohesionless materials are the same, whereas in the case of dynamic conditions -the difference is the adhesion force that appears in the case of cohesive materials.…”

“…The system differs depending on the type of material, and for a cohesionless material it includes: -equation of continuity (Cyganiuk et al [12])…”

“…For cohesive materials, the system of equations includes: equation of continuity (Cyganiuk et al [12])…”

“…However, the point is not inclined as described in Cyganiuk and Przystupa [10], Cyganiuk [11], Cyganiuk et al [12], Korzeń [13]. This means that the angle of inclination of the conveyor belt is 0° (Korzeń [7,14]).…”

“…Cyganiuk and Przystupa [10], Cyganiuk [11], Cyganiuk et al [12] take into account kinematic, dynamic and material parameters including adhesion, but the equations presented there are designed for inclined conveyors with ascending and/or descending belts.…”