公开(公告)号：US5706879A

公开(公告)日：1998-01-13

申请号：US431120

申请日：1995-04-28

申请人： Christian Renner ,  Xaver Naf ,  Jovo Laskovic

发明人： Christian Renner ,  Xaver Naf ,  Jovo Laskovic

IPC分类号： B02C17/08 ,  B22C1/00 ,  B22C5/02 ,  B22C5/18 ,  B22C5/00 ,  B02C19/12

CPC分类号： B22C5/02 ,  B22C5/18 ,  Y10S241/10

摘要： An apparatus for reclaiming used foundry and molding sand comprises a container having a cylinder sidewall and at least one bottom wall or tray is arranged on a sand reclamation device for the mechanical cleaning of grains of sand, particularly organically and inorganically bonded molding sands. A central, hollow drive shaft is arranged in the cylinder and is supported for rotation. The bottom walls are firmly attached to the hollow shaft. A slot is formed between the bottom walls and cylinder. By the rotation of the bottom walls a parting plane is formed between the rotating part and the stationary part of the column of sand, in which plane an intensive rubbing of grain against grain takes place. As a result of the cylindrical force, the sand is brought in the direction towards the wall of the cylinder and through the slot, which additionally leads to an intensive rubbing of grain against grain. The powder produced upon the rubbing, primarily binder particles which have been rubbed off, is drawn off continuously through the hollow shaft by means of the suction via openings which are provided in the hollow shaft.

摘要翻译： 用于回收所使用的铸造和型砂的设备包括具有气缸侧壁的容器，并且至少一个底壁或托盘布置在用于机械清洁砂粒，特别是有机和无机粘结的型砂的砂土回收装置上。 中心的中空驱动轴设置在气缸中并被支撑以便旋转。 底壁牢固地连接到中空轴上。 在底壁和气缸之间形成槽。 通过底壁的旋转，分离平面形成在砂柱的旋转部分和固定部分之间，在该平面中发生颗粒对颗粒的强烈摩擦。 作为圆柱形力的结果，沙子沿着朝向圆柱体壁的方向并且通过狭槽而进入，这另外导致谷物紧密地磨擦谷物。 在摩擦上产生的粉末，主要是被擦去的粘结剂颗粒，通过设置在空心轴中的抽吸通孔，通过中空轴连续地被抽出。