Oval ceramic honeycomb carrier

Abstract

The invention relates to an oval ceramic honeycomb carrier. The oval ceramic honeycomb carrier comprises an oval cylindrical body, several orthohexagonal unit channels (1.2) with an orthohexagonal cross section shape and enclosed by several first partition walls (1.1) are tightly arranged in the cylindrical body, a second partition wall (1.3) connected to an orthohexagonal opposite angle is arranged in the first partition walls (1.1), the cross section of the second partition walls (1.3) is in a Z shape, the unit channel is separated to six tunnels (1.4) with the pentagon cross section by the second partition walls (1.3). and the honeycomb micropores (2) are opened on the first partition walls (1.1) and the second partition walls (1.3). The oval ceramic honeycomb carrier has good integrality, increases the filtering area in the confined space at maximum degree, the installation is convenient, and the purifying effect is good; and the black smoke particles in the exhaust gas can be effectively filtered by the micropores on the partition walls.

Description

technical field [0001] The invention relates to an elliptical 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 ...

AI Technical Summary

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

Images