最近胜利油田济南柴油机厂研制成功了一种新型原砂烘干系统。该系统采用改型三滚筒装置,与国内其他烘干方法相比具有高效、低耗、占地面积小等优点。经实测,其生产率可达5.5吨/小时,烘干后的原砂水分小于0.2%(原砂水分为4.2～3.4%),达到了设计要 Recently, Shengli Oilfield Jinan Diesel Engine Factory successfully developed a new type of original sand drying system. The system uses modified three roller device, compared with other domestic drying methods with high efficiency, low consumption, small footprint and so on. The measured, its productivity up to 5.5 tons / hour, after drying the original sand moisture less than 0.2% (original sand water 4.2 ~ 3.4%), reached the design to