An optional exhaust gas purification device

Abstract

The invention relates to a selective type tail gas purifying device, which comprises a tail gas separating device (C), wherein the tail gas separating device (C) is connected with a gas exhaust opening of a diesel engine (E) of an operation vehicle; an inlet of the tail gas separating device (C) is connected with the gas exhaust opening of the diesel engine (E) of the operation vehicle; the tail gas separating device (C) comprises at least two outlets, namely an outlet I and an outlet II; the outlet I is connected with a silencer (A), and the outlet II is connected with a DPF (diesel particulate filter) particulate trapping device (B); the silencer (A) and the DPF particulate trapping device (B) are arranged above a ceiling (D) of the operation vehicle; the tail gas separating device (C) comprises a box body (6); the box body (6) comprises a bottom plate; the bottom plate is connected with a side plate; an overhauling cover plate is arranged above the side plate; a driving worm gear rod is embedded between a left side plate and a right side plate of the box body through a rotary bearing mounting seat (8) and a bearing (64). The selective type tail gas purifying device has the characteristics that when a filtering core is blocked by accumulated carbon, the detachment and replacement are performed, or the movable type regenerating servicing is performed; the limitation of single configuration on cost, tail gas temperature and a control system is avoided, and more flexibility in servicing or replacement is realized.

Description

technical field [0001] The invention relates to an exhaust gas purification device, in particular to an optional exhaust gas purification device suitable for tamping vehicles, and belongs to the technical field of railway machinery design and manufacture. Background technique [0002] For domestic railway large-scale road maintenance machinery, tamping vehicles are currently the model with the highest market share. Since the 1980s, my country has begun to vigorously develop large-scale railway road maintenance machinery. With the global and domestic emission standards for motor vehicles It has been increasing year by year, and the emissions of older models are far from meeting the standards. Especially for tamping vehicles that were put into use earlier, the emissions of diesel engines at the source of their power systems are often only National I standards. Lengthening, under the action of the performance loss of the diesel engine itself, the pollution level of the emission i...

AI Technical Summary

Problems solved by technology

In addition, due to the high purchase cost of tamping vehicles, it is unrealistic for these models to be scrapped or stored without operation

[0003] The Chinese invention patent with the application number of 01113716.9 discloses an exhaust gas purifier, which includes a purifier base, an air inlet pipe, and an air outlet pipe. Both ends of the purifier base are provided with an inlet pipe interface and an air outlet pipe interface, and are respectively connected to the inlet pipe and the outlet pipe. The trachea is connected, an inner cylinder is installed inside the base of the purifier, an exhaust gas diversion device is installed inside the inner cylinder, and a heat absorbing device is installed between the base of the purifier and the inner cylinder, which can make the exhaust gas burn more completely during the exhaust gas discharge process, and to a greater extent Reduce environmental pollution, but it cannot filter and purify post-combustion emissions

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