The ESP has been successfully used to clean gas coming out from the preheater kiln.
The gas is often taken through the raw mill for material drying before cleaning in ESP.
The design and operation of a cement kiln has undergone substantial improvement over
past 30 years. The fuel crisis made the old wet process change to semi-wet/dry to long
dry and finally to multistage (4–6) preheater precalciner kiln. These improvements resulted
in many changes in operating parameters of the ESP which are summarised in
Table 3.