Trapezoidal ceramic honeycomb carrier

Abstract

The invention relates to a trapezoidal ceramic honeycomb carrier. The carrier comprises a cylindrical body with a trapezoidal cross section. Multiple unit channels (1.2), which are formed by enclosing first partition walls (1.1), and have a regular hexagon shaped cross section, are tightly arranged in the cylindrical body. Second partition walls (1.3) that are connected to the opposite angles of the regular hexagons are arranged in the first partition wall (1.1). The cross section of second partition walls (1.3) is in a Z shape. The second partition walls (1.3) cut each unit channel into six tunnels (1.4) with a pentagonal cross section. The provided trapezoidal ceramic honeycomb carrier has the advantages of good overall performance, convenient installation, and good purification effect. The filter area is maximally increased in limited space. The micro pores in the partition walls can effective filter black smoke particles in exhaust gas.

Description

technical field [0001] The invention relates to a trapezoidal ceramic honeycomb carrier, which is used for purifying automobile tail gas. It belongs to the technical field of ceramic processing equipment. Background technique [0002] At present, the catalyst carrier of automobile exhaust purifiers widely used at home and abroad generally adopts ceramic honeycomb carrier. Drying, sintering, and then impregnated with catalyst and then dried. When in use, put it into the middle section of the metal casing of the exhaust gas purifier. [0003] The conventional ceramic honeycomb carrier is generally a square cylinder, and when the ceramic honeycomb carrier of this shape is put into the metal shell of the exhaust gas purifier, the gap between the ceramic honeycomb carrier and the metal shell will often be large, making the exhaust gas purifier The space of the car chassis cannot be effectively used, and some manufacturers will add small-sized ceramic honeycomb carriers to the ...

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Problems solved by technology

[0003] The conventional ceramic honeycomb carrier is generally a square cylinder, and when the ceramic honeycomb carrier of this shape is put into the metal shell of the exhaust gas purifier, the gap between the ceramic honeycomb carrier and the metal shell will often be large, making the exhaust gas purifier The space of the car chassis cannot be effectively used, and some manufacturers will add small-sized ceramic honeycomb carriers to the gaps in order to fill the gaps, which will result in poor integrity of the ceramic honeycomb carriers in the metal shell and increase the resistance during the exhaust gas treatment process. The exhaust gas purification effect is reduced, and when the honeycomb carrier is installed, the operation is complicated and the efficiency is low; at the same time, the specific surface area of ​​the existing honeycomb carrier is limited, and it is difficult to improve the purification activity of the catalyst or adsorbent coating

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