一些铝厂采用两种方法制造氟化盐团块:一种是将粉状氟化铝预先润湿,一种不润湿,即用干燥法制团。按现有实验和工业数据分析,该措施能保证极大地降低稀缺的氟耗量。根据以前所做研究得知,提高氟化盐粉的湿度(15～30％),会直接影响团块的强度,特别是在使用氟化铝粉时更是如此。但,团块干燥的持续时间过长,温度太高(按工厂实践数据在温度350～380℃下持续16～17小时), Some aluminum mills use two methods to make fluorinated clumps: one is to pre-wet powdered aluminum fluoride, one that is not wetted, that is, dried by a dry process. Based on available laboratory and industrial data, this measure ensures that the scarce fluorine consumption is greatly reduced. According to previous studies, increasing the moisture (15-30%) of the fluoride salt directly affects the strength of the pellets, especially when using aluminum fluoride powders. However, the duration of the lump drying is too long, the temperature is too high (according to factory practice data at a temperature of 350 ~ 380 ℃ for 16 to 17 hours)