Screw conveyors are widely employed in industrial fields for conveying bulk materials. The shearer drum which uses the screw conveying principle is responsible for excavation and conveying coal particles onto the chain conveyor. Screw conveyor performance is affected by potential factors, such as the blade axial tilt angle and style, core shaft form and diameter. The effect of blade axial tilt angle on the conveying performance was investigated with the help of DEM. In the case of the screw conveyor, the mass flow rate, and particle axial velocity increased with increasing positive axial tilt angle, and declined with increasing negative axial tilt angle. In the case of the drum, the mass flow rate, particle axial velocity, and loading rate first increased and then decreased with increasing positive axial tilt angle, and decreased with increasing negative axial tilt angle. These results can be considered as a benchmark for screw conveyor and drum structural designs with axial tilt screw blades.

螺旋输送机广泛应用于工业领域，用于输送散装物料。采用螺旋输送原理的采煤机滚筒负责挖掘煤粒并将其输送到链式输送机上。螺旋输送机性能受潜在因素影响，例如叶片轴向倾斜角度和样式、芯轴形式和直径。借助 DEM 研究了叶片轴向倾斜角对输送性能的影响。在螺旋输送机的情况下，质量流量和颗粒轴向速度随着正轴向倾角的增加而增加，随着负轴向倾角的增加而下降。在转鼓的情况下，质量流量、颗粒轴向速度和加载速率随着轴向正倾角的增加先增加后减小，并且随着负轴向倾斜角的增加而减小。这些结果可被视为具有轴向倾斜螺旋叶片的螺旋输送机和滚筒结构设计的基准。