IKN said, "Among several features will be a tertiary air
duct damper which has proven successful operation for more than three years with outstanding reliability and performance.
These temperature variations were caused by the location and configuration of the tertiary air system and by the operation of the six-on-six interlaced secondary air system.
The tertiary air ports were moved to a higher elevation.
The main combustion air side of the dual air zone burner is divided into secondary and tertiary air
The range of the masonry works included: the rotary kiln, grate cooler, hot kiln hood, tertiary air
duct, hot-blast stove and the other equipment of the two production lines, casting of wear-resistant ceramic materials for the raw mill, cement grinding mill and the pipelines on the top of the slag mill.