公开(公告)号：US4571090A

公开(公告)日：1986-02-18

申请号：US769998

申请日：1985-08-26

申请人： Ronald J. Weetman ,  Jerry A. Carpenter ,  Chandler K. Coyle ,  Keith T. McDermott ,  Roger N. Voss

发明人： Ronald J. Weetman ,  Jerry A. Carpenter ,  Chandler K. Coyle ,  Keith T. McDermott ,  Roger N. Voss

IPC分类号： B01F7/00 ,  B01F15/00 ,  B01F5/10

CPC分类号： B01F7/00341 ,  B01F15/00012

摘要： Mixing systems for liquids having fibers suspended therein wherein the fibers tenaciously adhere to and accumulate on the leading edge of the impeller, thereby increasing the drag of the liquid on the impeller as it rotates and the consequent increase in the power required to rotate the impeller. Axial flow of the liquid in a tank is produced by the impeller within a draft tube. The leading edge of the blades of the impeller are inclined with respect to radial lines extending from the axis of rotation of the impeller beyond the angle of repose of the fibers on the leading edge. Also, the coefficient of friction of the portion of the impeller, extending from the leading edge toward the trailing edge thereof, to which the fibers adhere is reduced by providing the surface thereof with a low coefficient of friction material.

摘要翻译： 用于具有悬浮在其中的纤维的液体的混合系统，其中纤维牢固地粘附并积聚在叶轮的前缘上，从而在叶轮旋转时增加液体在叶轮上的阻力，从而增加旋转叶轮所需的功率。 通过在引流管内的叶轮产生罐中液体的轴向流动。 叶轮的叶片的前缘相对于从叶轮的旋转轴线延伸超过纤维在前缘上的休止角延伸的径向线倾斜。 此外，通过提供其具有低摩擦系数的材料，减小了纤维粘附到其上的从其前缘向后缘延伸的叶轮部分的摩擦系数。