Investigation of the effects of radial clearance on the screw conveyor performances for different inclinations  

作　　者：Berna Bolat Birgül Aşçıoğlu Temiztaş Enes Sezer 

机构地区：[1]Department of Mechanical Engineering,Yıldız Technical University,34349,Beşiktaş,İstanbul,Turkey

出　　处：《Particuology》2024年第9期72-80,共9页颗粒学报（英文版）

摘　　要：Screw conveyors are widely used for bulk material transportation.This study investigates the critical role of radial clearance,the gap between the screw and the conveyor body,on performance across various inclination angles.The Discrete Element Method(DEM)is employed to analyze the effects of different radial clearances on conveyor performance for concrete aggregate and sand as bulk materials.Volumetric efficiencies and capacity losses serve as key performance indicators,quantitatively assessed for each radial clearance and inclination combination.Experimental validation is conducted to corroborate the findings.In the study,the optimal radial clearance was identified as 1.5 to 3 times of the particle size.This optimal clearance minimizes the material jamming and increases the performance for screw conveyors with different inclinations and bulk material types as a result.

关 键 词：Screw conveyors Radial clearance Discrete element method(DEM) Volumetric efficiency Conveyor performance 

分 类 号：TH224[机械工程—机械制造及自动化]