| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a grinding/rubbing apparatus which is made compact and in which the quality of an aggregate to be withdrawn from the waste of concrete is improved while reducing power consumption. <P>SOLUTION: The grinding/rubbing apparatus 1, in which the aggregate is withdrawn from the waste of concrete by grinding/rubbing treatment, includes: a housing 13; a chute 28 for throwing the waste of concrete in the housing; a grinding/rubbing part 29 which is arranged fixedly on the bottom end of the chute and has a grinding/rubbing pin 33 projected downward; a drive shaft 16 arranged concentrically under the chute; a grinding/rubbing table 17 arranged on the upper end of the drive shaft to be opposed to the grinding/rubbing part; and driving devices 14, 15 for rotary driving the grinding/rubbing table via the drive shaft. First grinding/rubbing treatment is performed on the waste of concrete thrown from the chute by using the grinding/rubbing pin and the grinding/rubbing table to be rotated relatively to the grinding/rubbing pin. <P>COPYRIGHT: (C)2013,JPO&INPIT |
