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厦门东孚铸造厂,是以生产装载机配件为主的乡镇企业,月产铸件200多吨,80％的铸件使用粘土干型砂。但因没有旧砂再生设备,旧砂利用率极低,新砂用量每月达100t。为解决这一问题,该厂在现有滚筒筛砂机的基础上,制造了一套组成如图所示的简易旧砂再生装置系统,使用效果良好,能将旧砂中粉尘量的60％～70％除去。旧砂在滚筒筛中撞击破碎,筛除砂团和铁块后落至输送带上,并送至倾斜45°的分离筛。砂流在50/70目筛网上滑滚而下;粉末被分离,
Xiamen Dongfu foundry, is the production of wheel loader accessories mainly township enterprises, more than 200 tons of castings per month, 80% of the castings using clay dry sand. However, because there is no old sand recycling equipment, the utilization of used sand is very low, the amount of new sand reaching 100t per month. To solve this problem, the factory in the existing roller sieve sand machine, based on the manufacture of a set as shown in the simple old sand regeneration device system, the use of good results, the amount of dust in the old sand can be 60% ~ 70% removed. The old sand is crushed and crushed in the tumbler screen, the grit and the iron are screened, dropped on the conveyor belt, and sent to a separating screen inclined at 45 °. The sand flow slides down the 50/70 mesh screen; the powder is separated,