为解决我厂铸造车间旧砂回用问题,自制了一套水洗旧砂系统。通过水洗工艺处理的旧砂用于型砂配制,能满足工艺要求。系统的组成如图所示。滚筒筛将旧砂中的铁块等杂物筛除后,旧砂由提升机送入漏斗,并进入滚筒中;水泵将水由管道送入滚筒中。砂在滚筒内与水混合, In order to solve the problem of reuse of used sand in foundry workshop of our factory, a set of washed old sand system was made. The old sand treated by the washing process is used for molding the sand to meet the technical requirements. System composition as shown. Drum sieve The old sand in the iron and other debris screening, the old sand by the elevator into the funnel, and into the drum; pump water from the pipe into the drum. Sand mixed with water in the drum,