REDUCING AGENT SUPPLY DEVICE AND EXHAUST GAS DENITRIGING SYSTEM USIG THE SAME

摘要

PURPOSE: A reducing agent supplying apparatus and an exhaust gas denitrification system using the same are provided to prevent the clogging phenomenon of a reducing agent transferring path and a spraying part by selectively supplying either a reducing agent or water to the spraying part. CONSTITUTION: A reducing agent supplying part(222) supplies a reducing agent to selective supplying parts(224, 224', 224''). A water supplying part supplies the selective supplying parts. Either the reducing agent or water is selectively supplied to a spraying part(225) by the selective supplying parts. The spraying part sprays the reducing agent or water. The selective supplying parts supply water to the spraying part to prevent the clogging phenomenon of the spraying part. The reducing agent supplying part further includes an air supplying part(221).