黏土旧砂完全再生成套设备.pdfVIP

学兔兔 2015年第2期 铸 造 设 备 与 工 艺 2015年 4月 FOUNDRY EQUIPMENT AND TECHNOLOGY · 铸造设备· 黏土旧砂完全再生成套设备 孙清洲，张普庆，许荣福 (山东建筑大学材料科学与工程学院，山东济南 250101) 摘 要：介绍了黏土旧砂高温脆化装置、脆化旧砂冷却装置、多排磨轮再生机及黏土再生砂微粉分离装置等 黏土旧砂完全再生成套设备的工作原理及确定各种设备方案的依据。研究发现，逆流转子再生、磨轮再生及气流 再生可用于黏土旧砂的完全再生，振动再生不能用于黏土旧砂的完全再生。流化床可用于黏土完全再生砂的微 粉分离，而流幕式风选不宜用于黏土完全再生砂的微粉分离。自然冷却、强迫对流冷却以及强迫对流加冷却水管 热传导冷却对砂子的粒度和粒形没有明显的影响。 关键词：黏土旧砂；再生技术；再生设备 中图分类号：TG2321 文献标识码：A 文章编号：1674—6694(2015)02—0004—04 Complete Equipment for Used Green Sand Total Reclamation SUN Qing ou,ZHANG Pu-qing,XU Rong (School ofM~edals Science and Engineering,Shandong Jianzhu Unwe~ity, nnn Shandong 250101，China) Abstract：This paper introduces the working principle and design basis of complete equipment for used green sand total reclamation，such as the high-temperature embrittlement device，sand cooling device，muhiple rOWS of grinding wheel reclaimer and powder separation devices and SO on．It is found that the counter current rotor reclaimer，the grinding wheel reclaimer and the air reclaimer can be used to the total reclamtion of used green sand；the vibration reclaimer cannot be used to the total reclamtion of used clay sand．The fluidized bed is used to the seperation of micropowder of the reclaimed sand．However,the flow of the episodic winnowing can not be used for micropowder of the reclaimed sand．Th ere is no obvious effect on the sand grain size and grain shape of reclaimed sand which is processed by natural cooling forced convection cooling，forced convection and heat conduction cooling． Key words：used clay sand，sand reclamation technology，sand reclamation equipment 我国是铸件生产大国，2013年铸件年产量达到 生+微粉分离的黏土旧砂完全再生工艺是适合我