Modifications to Precalciner Kiln Combustion Systems to Prevent Carbon Monoxide Electrostatic Precipitator Trips

The use of precalcining cement kilns has created a unique problem in both the cement kiln process and in environmental control. The operation of precalciner cement kilns yields a specific pattern of carbon monoxide (CO) generation because of the fuel-combustion process. As a result of this CO generation, automatic explosion protection systems de-energize the electrostatic precipitators (ESP's) used to control particulate matter emissions from the kilns.