On the basis of structural analysis of the ordinary spiral drums,a new kind of structural form for the spiral drums has been provided,and its theoretical value of axial slop angle has been also given.

• 在分析普通螺旋滚筒结构的基础上,针对一种螺旋叶片向排煤口侧轴向倾斜一个角度的新型滚筒,给出螺旋叶片轴向倾斜角度的理论值。