-
公开(公告)号：US5344235A
公开(公告)日：1994-09-06
申请号：US6552
申请日：1993-01-21
CPC分类号： B01F7/00016 , B01F7/00033 , B01F7/00341 , B01F7/00358
摘要： In order to extend the life of mixing impellers which circulate materials, and particularly which suspend solids, in the form of particles which erode the blades of the impellers and place a practical limit on impeller speed and/or angle of attack due to increased erosion at high flow velocity (erosion being a function of the cube of the velocity), the blades are constructed from blades into an airfoil configuration which does not limit the thickness of the plates and thereby allows the use of thick plates having extended life. An erosion resistant layer is located at least over the leading edge region of the blade and the shape of the blade reduces velocity of flow over the leading edge; the camber of the blade being maximized midway between the leading and trailing edge. The suction surface of the blade in the region subject to erosion is continuous thereby avoiding discontinuities which form vortices which enhance erosion. Fins, which may be at the tip on the suction side of the blade from midway between the leading and trailing edges to the trailing edge reduces tip vortices thereby further extending blade life in erosion-producing environments.
摘要翻译： 为了延长混合叶轮的使用寿命，叶轮将材料循环，特别是悬浮固体，以颗粒的形式侵蚀叶轮的叶片，并对叶轮速度和/或由于增加的 高流速（侵蚀是速度立方体的函数），叶片由叶片构成为翼型构造，其不限制板的厚度，从而允许使用具有延长寿命的厚板。 防侵蚀层至少位于叶片的前缘区域的上方，并且叶片的形状减小了前缘上的流动速度; 叶片的外倾角在前缘和后缘之间的中间最大化。 在受到侵蚀的区域中的叶片的吸力表面是连续的，从而避免形成涡流的不连续性，这增加侵蚀。 可以在叶片的吸入侧的尖端处的叶片从前缘和后缘之间的中间到后缘减小尖端涡流，从而在侵蚀产生环境中进一步延长叶片寿命。
-
公开(公告)号：US5152606A
公开(公告)日：1992-10-06
申请号：US559107
申请日：1990-07-27
CPC分类号： B01F7/001 , Y10T403/581 , Y10T403/585
摘要： A mixer impeller, which is adapted to mix and blend liquids and liquid suspensions in industrial and commmercial applications and is subject to forces which tend to work the impeller loose from attachment with its driving shaft, is secured to the shaft by collars (locking rings) which are threaded on the ends of hubs from which the blades of the impeller extend. In order to secure the attachment of the collars to the hub, a locking key is inserted between the collar and the shaft. The inner periphery of the collars are tapered outwardly away from the shaft. The neck of the locking key has portions which are deflected against these tapered inner peripheries when a pin is inserted through the neck of the locking key. A ramp on the collar mates with a ramp on the key to prevent reverse rotation (working loose) of the collar. The impeller is restrained against axial movement by the collar and against rotational movement by being keyed to the shaft and restricted by the ramp on the collar. Removal of the key for impeller replacement and maintenance is readily accomplished using the ramps on the surfaces of the collars and shoulder of the key which bear against each other. Upon removal of the locking pin, the inside of the neck deflects inwardly and the key is urged out of the collar, when the collar is unscrewed from the hub.
-
公开(公告)号：US4468129A
公开(公告)日：1984-08-28
申请号：US496778
申请日：1983-05-20
CPC分类号： B01F9/0018
摘要： Apparatus for mixing particulate material carried in separable containers or process modules rotated with the longitudinal axis thereof at an angle other than 90.degree. to the axis of rotation thereof so that the container rotates asymmetrically with respect to the longitudinal axis thereof. The containers have mixing or process bars rotatably mounted therein and extending also at an angle other than 90.degree. so as to be horizontal when the container is in position for asymmetrical rotation during mixing operations. A docking station of the apparatus has a column connected to the drive shaft at the angle other than 90.degree., an upper arm and a lower arm which is connected to the column and to actuators which tilt the lower arm from a horizontal, container receiving position to a position essentially parallel to the upper arm for clamping the container therebetween. A coupling, between the mixing bar and a shaft which rotates the bar, has a detent which provides for automatic engagement and alignment without manual intervention.
摘要翻译： 用于将携带在可分离容器中的颗粒材料或与其纵向轴线旋转的颗粒物质以与其旋转轴线成90°以外的角度混合的装置，使得容器相对于其纵向轴线不对称地旋转。 容器具有可旋转地安装在其中的混合或处理棒，并且在90度以外的角度也延伸，以便当在混合操作期间容器处于不对称旋转的位置时水平。 该设备的对接站具有以90度以外的角度连接到驱动轴的列，连接到该列的上臂和下臂以及使下臂从水平容器接收位置倾斜的致动器 到基本上平行于上臂的位置，以将容器夹紧在其间。 在混合杆和旋转杆的轴之间的联接件具有制动器，其能够在没有手动干预的情况下提供自动接合和对准。
-
-
搜索结果
3 条记录 (耗时 0.009 秒)