The invention discloses a
flue modification method and a
flue anticorrosive structure. The
flue modification method comprises: removing the original heat
insulation layer and the inner liner layer ofa flue shell, and performing sandblasting,
grinding and partial repairing on the inner wall of the flue shell; and then
coating the inner wall of the flue shell with a primer layer, and after the primer layer is completely cured, adhering a glass
brick to the primer layer with an
adhesive to form a heat-insulating anti-
corrosion layer. The flue anticorrosive structure comprises a flue shell, and is characterized in that the inner wall surface of the flue shell is covered with a heat-insulating anti-
corrosion layer, and the heat-insulating anti-
corrosion layer comprises a primer layer coveringthe inner wall surface of the flue shell and a glass
brick attached to the primer layer with an
adhesive. The invention utilizes the original concrete (
brick) flue shell structure, and uses the superior anti-corrosion characteristics of the primer, the
adhesive and the glass brick, thereby achieving the
dual purpose of anti-corrosion and heat preservation in the wet
flue gas environment, and provides a cost-effective flue modification structure with simple structure and an effective anti-corrosion layer.