DENITRATION TREATMENT OF EXHAUST GAS FROM SINTERING MACHINE

摘要

PURPOSE:To promote the saving of labor by reducing the load of an operator operating a sintering machine in order to monitor the concn. of NOX in exhaust gas and to reduce the treatment cost of exhaust gas by preventing the excessive addition of NH3. CONSTITUTION:In reducing and removing nitrogen oxide contained in exhaust gas by adding ammonia to the exhaust gas of a DL type sintering machine, both of long-term and short-term changes in the flow rate of exhaust gas are estimated and the amount of added ammonia is adjusted with due regard to both changes in the flow rate of exhaust gas to control the concn. of NOX.