公开(公告)号：US5765767A

公开(公告)日：1998-06-16

申请号：US667745

申请日：1996-06-21

申请人： Akira Iwata ,  Masao Nakano ,  Akihiro Furuichi

发明人： Akira Iwata ,  Masao Nakano ,  Akihiro Furuichi

IPC分类号： B01J2/20 ,  B02C17/16 ,  B02C17/18 ,  B02C23/16 ,  B07B1/06 ,  B07B1/20

CPC分类号： B07B1/20 ,  B02C18/062 ,  B07B1/06

摘要： A double screen (42) including a cylindrical screen (18) and a conical screen (23) is attached to an upper casing (3) into which a revolution shaft (11) is inserted and is provided with a supply opening (2). A rotary blade 12 is arranged within an annular space (15) having a nearly V-shaped section between the cylindrical screen (18) and the conical screen (23) so as to rotate keeping a desired gap relative to the respective screen surfaces. Since the annular space (15) having the nearly V-shaped section is spaced apart from the revolution shaft (11), the rotary blade (12) rotates at a high circumferential speed even in the bottom portion of the annular space (15).

摘要翻译： 包括圆筒形筛网（18）和锥形筛网（23）的双筛网（42）安装在上壳体（3）上，旋转轴（11）插入该上壳体（3）中并设有供给开口（2）。 旋转叶片12布置在圆柱形筛（18）和锥形筛（23）之间具有大致V形截面的环形空间（15）中，以便相对于各个筛面保持期望的间隙旋转。 由于具有大致V字形部分的环形空间（15）与旋转轴（11）间隔开，旋转叶片（12）即使在环形空间（15）的底部也以高圆周速度旋转。