沈阳第一机床厂精铸车间的悬链式制壳线上安装了砂循环系统,见下图。表面撒砂完毕,砂子落入砂斗8中。打开手柄9,砂子经摆动筛10筛分,合格砂落入贮砂斗11。开动鼓风机1,砂循环系统开始工作。打开闸门12,关闭进砂口14,细砂通过抽砂管 Shenyang First Machine Tool Plant casting workshop catenary system line installed on the sand circulation system, see below. Sprinkle the surface is completed, the sand fell into the sand bucket 8. Open the handle 9, the sand sieved through the swinging sieve 10, the sand fell into the storage bucket 11 qualified. Start the blower 1, sand circulation system began to work. Open the gate 12, close the sand inlet 14, fine sand through the suction pipe