Chimney type | Flue gas type | ||||||
Dry flue gas | Damp flue gas | Wet flue gas | |||||
Weak corrosiveness | Moderate corrosion | Strong corrosion | |||||
Sleeve or multi pipe chimney | Brick chimney | ○ | □ | × | × | × | |
Single barrel reinforced concrete chimney | ○ | □ | △ | △ | × | ||
Brick inner tube | □ | ○ | ○ | □ | × | ||
Steel chimney | Anticorrosive metal lining | △ | △ | □ | □ | ○ | |
Anticorrosive light brick lining | △ | △ | □ | □ | ○ | ||
Anticorrosive coating lining | □ | □ | □ | □ | □ | ||
Acid resistant concrete lining | □ | □ | □ | △ | × | ||
FRP inner cylinder | △ | △ | □ | □ | ○ |