在氧化铝生产中,设备上产生结疤的现象十分严重,致使设备的产能下降,能耗增加。为了保持生产的正常进行,需要定期地采用各种物理的或化学的方法,对结疤进行清理,每年耗费在这方面的人力和财力是很可观的。设备器壁上结疤的形成是一个很复杂的物理化学过程。它主要取决于铝酸钠溶液中杂质的过饱和程度以及设备器壁与溶液的温 In the production of alumina, the phenomenon of scarring on the equipment is very serious, resulting in a decrease in equipment capacity and an increase in energy consumption. In order to keep production running properly, various physical or chemical methods need to be regularly used to clean scarring. It takes a lot of manpower and financial resources to spend on this aspect annually. The formation of scars on the wall of a device is a complex physical-chemical process. It mainly depends on the degree of supersaturation of the impurities in the sodium aluminate solution as well as the temperature of the wall of the device and the temperature of the solution