Cylindrical tail gas filter

Abstract

The invention relates to a cylindrical tail gas filter. The cylindrical tail gas filter comprises a filter box (1); a filter net (2), a first ceramic honeycomb carrier (3) and a second ceramic honeycomb carrier (7) are arranged in the filter box (1); and a spraying head (9) is arranged at the front end of the filter box (1). The cylindrical tail gas filter firstly uses sodium carbonate water mist for eliminating acid components in tail gas, then reacts the tail gas with main components of CO, HC and NOx as CO2, H2O, N2 and O2 under two grades of filtration by the filter net, the first ceramic honeycomb carrier and the second ceramic honeycomb carrier, can effectively filter black smoke particles in waste gas through micro holes in separation walls, can burn the black smoke particles under the effect of catalyst coating layers, and further improves the tail gas purifying effect.

Description

technical field [0001] The invention relates to a cylindrical tail gas filter, which is used for purifying automobile tail gas. It belongs to the technical field of automobile equipment. Background technique [0002] At present, ordinary automobile exhaust filters use catalysts to interact with NO and NO in automobile exhaust. 2 react with CO to form CO 2 and N 2 These two kinds of non-polluting gases, but the cars equipped with diesel engines, because the exhaust gas of diesel engines contains black smoke particles, the existing exhaust filter can not effectively filter the black smoke particles, which will cause environmental pollution; the acidity of the existing exhaust gas The further elimination of components is the new demand of people for exhaust gas treatment and urban environmental protection. Contents of the invention [0003] The object of the present invention is to overcome above-mentioned deficiency, provides a kind of cylindrical tail gas filter, this t...

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Problems solved by technology

[0002] At present, ordinary automobile exhaust filters use catalysts to interact with NO and NO in automobile exhaust. 2 react with CO to form CO 2 and N 2 These two kinds of non-polluting gases, but the cars equipped with diesel engines, because the exhaust gas of diesel engines contains black smoke particles, the existing exhaust filter can not effectively filter the black smoke particles, which will cause environmental pollution; the acidity of the existing exhaust gas The further elimination of components is a new demand for exhaust gas treatment and urban environmental protection

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