本文对这样一种灰铸铁车间的砂处理技术改造,提出一种设计方案,车间的生产能力为2500～3000吨/年,其中70%由简单机械化湿型生产,30%由手工干型生产,生产品种为中小批量铸件。积累资料表明:表干型用大件砂,每吨合格铸件耗用面砂3.6米~3/吨;湿型用砂,每吨合格铸件耗用总砂3.2米~3/吨。据此换算实际日耗用型砂40吨(其中日不平衡系数取1.2)。一、混砂工部的设计原则 In this paper, a gray cast iron workshop sand treatment technology, put forward a design program, the workshop production capacity of 2500 to 3000 tons / year, 70% of which are produced by a simple mechanized wet type, 30% by hand dry production, Production varieties for the small batch of castings. Accumulation of data shows that: table dry type with large sand, surface coating per ton of qualified consumption of sand 3.6 m ~ 3 / ton; wet sand, per ton of qualified castings consumption of sand 3.2 m ~ 3 / t. According to the conversion of the actual consumption of sand 40 tons (of which the Japanese imbalance coefficient of 1.2). First, the Department of sand design principles