斗式提升机
 斗式提升机用于在竖直方向或在很大倾角时运送物料的输送设备，其特点是占地面积小，尤其适用于结构紧凑立式布局生产线。
      Ir is applied to convey materials direction. The required floor area is little, so it is especially applicable to vertical layout product line.