KILN EXHAUST GAS PROCESSING METHOD BY CHLORINE BYPASS AND APPARATUS THEREFOR

摘要

A kiln exhaust gas processing method comprising the steps of extracting part of the exhaust gas (G) from a kiln (1), instantaneously cooling the extracted exhaust gas (G) to a temperature of 600 to 700 DEG C, classifying dust (W) in the cooled exhaust gas to coarse dust and fine dust by a classifier, returning the coarse dust to the kiln (1) and discharging the fine dust to a cement system, wherein the extracted part of the exhaust gas is below 5 % and the cut size of classification is 5 to 7 mu m.