Tail gas filter with good purifying effect

Abstract

The invention relates to a tail gas filter with the good purifying effect. The tail gas filter comprises a filter tank (1). A first filter screen (2), a first ceramic honeycomb carrier (3), a second ceramic honeycomb carrier (7) and a second filter screen (8) are sequentially arranged inside the filter tank (1) in the airflow direction. The surface of honeycomb ceramics is coated with an acid-resisting coating. The tail gas filter with the good purifying effect is good in acid resistance, and tail gas with the main components being CO, HC and NOx is reacted into CO2, H2O, N2 and O2 under the four-stage filtration action of the first filter screen, the first ceramic honeycomb carrier, the second ceramic honeycomb carrier and the second filter screen. Meanwhile, black smoke particles in waste gas can be effectively filtered out through micro pores in partition walls and further be burnt under the action of catalyst coatings, and the tail gas purifying effect is further improved.

Description

technical field [0001] The invention relates to an exhaust gas filter with good purification effect, which is used for purifying the exhaust gas of automobiles. It belongs to the technical field of automobile equipment. Background technique [0002] At present, many ordinary automobile exhaust filters are directly discharged without filtering, or the filter device is improper, which can easily lead to air pollution and noise pollution; especially, cars equipped with diesel engines, due to the exhaust The existing exhaust gas filter cannot effectively filter the black smoke particles, which will cause environmental pollution. The existing honeycomb carrier cannot effectively resist acid, resulting in a short service life and failing to meet the needs of customers. Contents of the invention [0003] The purpose of the present invention is to overcome above-mentioned deficiency, provides a kind of tail gas filter with good purifying effect, this tail gas filter can also filt...

AI Technical Summary

Problems solved by technology

[0002] At present, many ordinary automobile exhaust filters are directly discharged without filtering, or the filter device is improper, which can easily lead to air pollution and noise pollution; especially, vehicles equipped with diesel engines, due to the exhaust Contains black smoke particles, the existing exhaust filter can not effectively filter black smoke particles, which will cause environmental pollution, the existing honeycomb carrier can not effectively acid, resulting in short service life, can not meet the needs of customers

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