Abstract: The irrational design of system structure in the process of material transportation of transshipment system is the main cause of wear and tear, and the design of reasonable system structure is the main solution to the wear and tear of transshipment system. This study takes dry coal material as the experimental object, and establishes the deflector hood and drop pipe with different structural parameters to solve the problems of pipe wear and material blockage that are easy to occur in the bulk material transportation process of transshipment system. Orthogonal experiments were conducted to study the effects of the structure of the deflector and the drop tube on the wear of the drop tube, the exit velocity of the material, and the impact strength of the material conveyor belt. The results show that the comprehensive performance of the material transfer system is better when the angle of the drop tube is 50-55° and the closing width of the deflector is 100-150mm.

Transfer System; Flow Behavior; Discrete Element Method; Hood; Transfer Pipe