CO_2硬化水玻璃旧砂的湿法再生探索  

Conditions of Wet Reclamation for Used Sodium Silicate Sand Hardened by CO_2

作　　者：陈锐[1] 卢鑫[2] 谭捷[1] 谭远友[1] 

机构地区：[1]武汉纺织大学,湖北武汉430200 [2]华中师范大学第一附属中学,湖北武汉430073

出　　处：《广州化工》2014年第5期79-81,共3页GuangZhou Chemical Industry

基　　金：武汉纺织大学校基金重大项目(123005)

摘　　要：现代铸造业发展的一个重要目标是绿色铸造。水玻璃砂是最有可能实现绿色制造的型砂,水玻璃旧砂的再生回用是其关键。本文探讨了不同转速、时间、温度条件下湿法再生CO2硬化水玻璃旧砂的效果。结果表明:适宜的参数为转速800 r/min,时间10 min,温度80℃,用水量1∶1,再生砂残留碱约为3%。Green casting was an important goal in the development of modem foundry industry. Sodium silicate sand （SSS） was most likely molding sand achieve green manufacturing of green sand, and SSS regeneration recycling was the key of the green manufacturing. SSS regeneration CO2 hardening affecting in different speed, time and temperature was discussed. The results showed that optimum reactions according to the volume of acid consumed were rotate speed of 800 r/min, water consumption of 500 mL ： 500 g sodium silicate sand, reaction temperature of 80 ~C and reaction time was 10 min. Residual alkali reclaimed in the sand was about 3%.

关 键 词：CO2水玻璃砂 湿法处理 再生效 果 

分 类 号：X76[环境科学与工程—环境工程]