The metallic oxide solid particles have been applied to the desiliconization preheating exchanger to solve the silica sediment problem, and the on line cleaning has been investigated.

• 将无机非金属材质的球形惰性固体颗粒引入铝土矿溶出粗液预热脱硅系统中,研究液固循环流化床在线清垢方法,解决脱硅预热器硅渣结垢严重、清洗费用高、劳动强度大等问题。