水玻璃砂的再生

Reclamation of Used Waterglass Sand

介绍了水玻璃旧砂湿法、干法和热法的再生原理,并简要说明了其应用情况。通过阐述人们对水玻璃硬化机理的认识,说明了水玻璃旧砂化学再生的基本原理,并对近年来水玻璃旧砂化学再生方面的研究及应用情况进行了总结概括。

The principle and method of physical reclamation of sodium silicate sand, which include dry reclamation, wet reclamation and thermal reclamation, are introduced summarily, and the application of these methods is introduced. The principle of chemical reclamation of sodium silicate sand through recognition of harden mechanism is presented. The research and present application condition about chemical reclamation is also related.