EXHAUST PURIFICATION APPARATUS

摘要

Disclosed is an exhaust purification apparatus which comprises: a first processing unit (10) for removing particulate matter; a second processing unit (20) for mainly reducing nitrogen oxide from the exhaust that has passed through the first processing unit (10); a communication pipe (30) for guiding the exhaust from an exhaust outlet of the first processing unit (10) to an exhaust inlet of the second processing unit (20); and a reducing agent supply unit (40) for supplying a reducing agent to the exhaust. The first processing unit (10) and the second processing unit (20) are arranged in parallel to each other in such a manner that the exhaust outlet of the first processing unit (10) and the exhaust inlet of the second processing unit (20) are on the sides facing each other. The communication pipe (30) is arranged in a space between the first processing unit (10) and second processing unit (20) where the processing units are closest to each other in such a manner that the upstream part of the communication pipe (30) extends from the exhaust outlet of the first processing unit (10) along the outer circumferential surface of the first processing unit (10) and the downstream part of the communication pipe (30) extends along the outer circumferential surface of the second processing unit (20) to the exhaust inlet of the second processing unit (20). The reducing agent supply unit (40) is provided on the communication pipe (30).