exhaust gas reduction apparatus which is provided at one end portion of the exhaust pipe whereby the other end portion is connected to a motor mounted on a heavy equipment mainframe

摘要

exhaust gas reduction apparatus which is provided at one end part of the exhaust pipe whereby the other end part is connected to a motor mounted on a main frame of the heavy equipment exhaust gas reduction apparatus for equipment that can meet diesel engine exhaust gas standards by providing a selective catalytic reduction device (rcs), plus a diesel particulate filter (fpd), and minimize the influence of vibration due to the driving by mounting the diesel particulate filter (fpd) and the selective catalytic reduction device (drc) on a bonnet structure. the exhaust gas reduction apparatus includes a bonnet structure mounted on one side of the main structure, which is adjacent to the engine to reduce an influence due to engine vibration; a diesel particulate filter (fpd) having an end portion communicating with the other end portion of the exhaust pipe, and is mounted on an upper end portion of the bonnet structure provided with the diesel oxidation catalyst ( doc), and the capture of particulate matter; a mixing tube, with one end portion communicating with the other end portion of the diesel particulate filter, one side communicating with an injection device injecting a reducing agent; and a selective catalytic reduction device (rcs) mounted at one end of the bonnet structure to communicate with the other end of the mixing tube to accelerate the reduction reaction between the injected reducing agent and nitrogen oxides ( nox) in the exhaust gas.