China Avoid Air Leakage Corrosion of Ash Blocking Air Preheater

When burning high-sulfur fuels, both tubular and rotary preheaters are prone to corrosion and ash blocking. The methods to avoid are: install a heater at the air inlet or use hot air recirculation; use low-oxygen incineration or admixture with additives to reduce the amount of SO2 gas generated in the flue gas; blow soot regularly to maintain the heating surface cleaning; Use corrosion-resistant materials for the heating surface.