粉煤灰空心微珠的研究、分选和应用,我国是在70年代末开始的。株洲电厂,长沙冶金研究所、济南电厂、锦州市公安局等单位,首先开展了这项工作,至今己扩大到有13个省市的70多个单位。现在已经明显地看到了粉煤灰空心微珠有广阔的应用范围和可喜的经济效益。在对粉煤灰的研究中发现,粉煤灰中含有一种微小、质轻、空心而呈圆珠形的颗粒,在光学显微镜下观察,好象一颗颗晶莹 The research, sorting, and application of fly ash hollow microspheres began in the late 1970s in China. Zhuzhou Power Plant, Changsha Metallurgical Research Institute, Jinan Power Plant, Jinzhou Public Security Bureau and other units have carried out this work first, and have so far expanded to more than 70 units in 13 provinces and cities. It has now been clearly seen that fly ash hollow microspheres have a wide range of applications and enjoyable economic benefits. In the study of fly ash, it was found that fly ash contains a tiny, light, hollow and round bead-shaped particles that are observed under an optical microscope as if they were one crystal.