EXHAUST GAS TREATMENT DEVICE

In this exhaust gas treatment device (1), a catalyst unit (40) for treating exhaust gas is held inside a container main body (10) that forms a gas flow channel (R) through which the exhaust gas flows.The exhaust gas treatment device (1) is provided with a downstream-side grid (30) provided further downstream in the gas flow channel (R) than is the catalyst unit (40), an upstream-side grid (70) provided on the side of the catalyst unit (40) opposite the downstream-side grid (30), a pressing member (80) that keeps the catalyst unit (40) pressed down between the downstream-side grid (30) and theupstream-side grid (70), and an elastic seal member (32) interposed between the downstream-side grid (30) and the catalyst unit (40). The elastic seal member (32) is configured so as to elastically deform due to the pressing member (80) pressing down the catalyst unit (40), and to seal the gap between the downstream-side grid (30) and the catalyst unit (40). 本发明的排气处理装置(1)在形成供排气流动的气体流路(R)的容器主体(10)的内部保持用于处理排气的催化剂单元(40)。排气处理