Filter

Abstract

The invention relates to the technical field of filtering equipment and provides a filter which can filter particles and has a regeneration function. According to the technical scheme, the filter comprises a shell, a metal fiber mat filtering piece, an electrode connection part and adhesive pieces; the shell is provided with a flow hole penetrating through the two ends of the shell; at least one part of the metal fiber mat filtering piece is arranged in the flow hole and is in sealing fit with the wall of the flow hole in the circumferential direction; the part, in the flow hole, of the metal fiber mat filtering piece serves as the first part, and at least one part of the first part is bent along a trace to be of a layered bent structure; a groove is formed between every two adjacent layers of the layered bent structure, and an opening of each groove is opposite to an opening in one end of the flow hole; the electrode connection part comprises at least one positive pole connection part and at least one negative pole connection part; the positive pole connection parts and the negative pole connection part are electrically connected with the metal fiber mat filtering piece; and the adhesive pieces are arranged between every two adjacent layers of the layered bent structure.

Description

technical field [0001] The invention relates to the technical field of filter equipment, in particular to a filter. Background technique [0002] With the rapid development of the economy and the remarkable improvement of people's living standards, the sales of motor vehicles in our country have increased rapidly, and the pollutants emitted by motor vehicle exhaust have increased significantly, causing serious pollution to the air in cities. Among them, the exhaust gas emitted by motor vehicles contains a large amount of particulate matter. How to effectively filter out these exhaust particulate matter is an important link in the process of vehicle exhaust gas treatment. [0003] Although there are some filters that can filter particulate matter at present, the filter itself has no regeneration function. After the filter is used for a long time, a large amount of filtered particulate matter will adhere to the filter screen of the filter, causing the filter holes on the filte...

AI Technical Summary

Problems solved by technology

[0003] Although there are some filters that can filter particulate matter at present, the filter itself has no regeneration function. After the filter is used for a long time, a large amount of filtered particulate matter will adhere to the filter screen of the filter, causing the filter holes on the filter screen to be blocked. Resulting in reduced engine performance or failure to function properly, other methods must be used for filter regeneration

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