The riser duct recycles heated air from lower cyclone stages and within the kiln itself, thus improving the thermal efficiency and reducing fuel costs. Dalmia’s SiC based anti-coating castables are highly resistant to abrasion and provide a maximum service temperature of 1600℃.
A Tertiary Air Duct is a part of the Preheater that bypasses the kiln and is used to divert the combustion air required for the calciner from the kiln hood. Here, tertiary airflow is controlled using various gates. Dalmia’s anti-coating high alumina bricks provide excellent resistance to abrasion along with coating repellence.
Bricks HG 40-20AR (High Alumina Bricks) LF 30-20HS (Fire Clay Bricks) Bricks for critical areas DALCR-60 (Anti-Coating High Alumina Bricks) Castables QUICKPACK LC 80, QUICKPACK LC 90 (Low Cement Castables) Castables for critical areas DALRESISTAL 80 (Special Anti-Coating Castables) Special Features Excellent resistance to abrasion and alkali attack. Anti-coating properties.