Light ceramic fillers are widely used as scrubbing tower fillers in coking plant, gas plant chemical purification tower and melamine plant (such as desulfurization tower, benzene wash tower, ammonia wash tower, final cooling tower, water wash tower). Their application effect is very good. They are characterized by high temperature sweep resistance, low specific gravity, small resistance, high mass transfer coefficient, good absorption effect and aging resistance. It has strong corrosion resistance and long service life. Normally it does not need to be repaired.