Starting from a typical cement process flow chart, we have selected some process points in which the nuisance filters are necessary in order to allow a proper material handling. A comprehensive study and the deepl knowledge of the upstream equipment allow an efficient dedusting action and emission control by the filtering unit.
Data and configurations of these equipment are only for study purposes, real cases need may differ from the data showed.
Finish mills can be vertical (roller) or horizontal (ball).
The circuits are like raw mill type, according to the mill type.
From bag filter point of view, consideration are the same:
- Horizontal mill= low dust load (e.g. 200 g/Nm3) and low operating negative pressure (-10 mbar)
- Vertical mill= high dust load (e.g. 600 g/Nm3) and high operating negative pressure (- 60 mbar)