Abstract
A new screw conveyor with flexible discrete spiral blades is proposed to solve the problem of particle material gathering between the screw and the tube wall in the traditional screw conveyor. With a theoretical analysis, the power consumption model of the screw conveyor with flexible discrete spiral blades is built. Then, its practicability is verified by simulation and experimental testing. The simulation results show that the increase of the spiral angle will raise the transportation speed of the particles. The diameter of the flexible blades raises with the increase of the power consumption of the screw conveyor. The experimental testing verified the analysis and simulation results.
Highlights
Screw conveyors are widely used in modern production and in the logistics of transporting granular materials [1]
The test and simulation curves are obtained at the same time
A flexible screw blade which is made of flexible fiber bundles is proposed as the spiral conveying shaft of screw conveyor for powder conveying
Summary
Screw conveyors are widely used in modern production and in the logistics of transporting granular materials [1]. When traditional rigid screw conveyors convey sticky bulk materials, the phenomenon of material gathering at the inner wall happens. This will reduce the transmission efficiency of the screw convey. A flexible tube screw conveyor is proposed in this study to expand the self-loading range. The power consumption variation of the conveyor transmission affected by the structure parameters of the screw is analyzed [3]. The filling factor of the screw conveyor is a key point for the transmission efficiency. A flexible, discrete spiral blades screw conveyor is proposed. The power consumption parameters when using a flexible helical blade structure were studied by theoretical analysis and simulation experiments
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