EXHAUST GAS TREATMENT SYSTEM AND OPERATION METHOD THEREOF

PROBLEM TO BE SOLVED: To fully use the treatment capacity of a treatment agent of an exhaust gas treatment apparatus as much as possible, using a centralized piping connecting structure. SOLUTION: An exhaust gas treatment system includes: a plurality of exhaust gas treatment units 14a-14d including treatment tanks 40; a common inlet duct 30 into which an exhaust gas supplied to the plurality of exhaust gas treatment units flows; an outlet duct 32 for exhausting the gas treated in the exhaust gas treatment units; and a central control section 56 for controlling the operation conditions of the exhaust gas treatment units. The exhaust gas treatment system has: sections 42 installed on the downstream sides of the exhaust gas treatment units, and detecting the exhaust gas treatment capacities of the exhaust gas treatment units; outlet valves 44 installed in treated gas outflow lines 24 extending from the exhaust gas treatment units and connected to the outlet duct 32; and treated gas returning lines 46 diverged on the upstream side of the outlet valves from the treated gas outflow lines, and converged to the common inlet duct. COPYRIGHT: (C)2010,JPO&INPIT