Process Modelling Vertical Screw Transport of Bulk Material Flow

Vertical screw conveying bulk and powdered materials are an integral part of many production processes in various industries and agriculture. With a wide range of applications in various industries, vertical screw conveyors, along with such qualities as the ease of construction, the continuity of transportation, integrity, the ability to transport and dusty badly smelling goods, have a significant drawback - the material, in addition to the translational motion in the direction of the axis of the conveyor, makes a rotary movement towards the peripheral speed of the screw, which reduces the productivity and increases the power consumption of the conveyor. The use of a simplified model of the movement of the material leads to the creation of inefficient machines, the structure and parameters of working bodies of which differ significantly from optimal. Adequate mathematical description of this process should allow the designers to significantly improve the efficiency of the vertical screw conveyors by means of calculation and selection of optimum values for the geometrical, kinematic and dynamic parameters of working bodies.