Tail gas purifier and honeycomb carrier coating process

A tail gas purifier and coating process technology, applied in chemical instruments and methods, exhaust devices, molecular sieve catalysts, etc., can solve problems such as poor filtering effect, environmental pollution, incomplete tail gas purification, etc., and achieve uniform slurry coating , good filtering effect
CN107304697AInactive Publication Date: 2017-10-31ๅŽ็Ž‰ๅจฃ
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ๅŽ็Ž‰ๅจฃ
Publication Date
2017-10-31
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to an exhaust gas purifier. It includes a filter box (1), which is equipped with a filter screen (2), a ceramic honeycomb carrier (3) and a low-temperature catalytic zone. The left end of the filter box (1) is equipped with an air supply device (8), and the right end There are drainage holes (9), and the coating process of the honeycomb carrier includes step 1, batching; step 2, taking slurry; step 3, coating; and step 4, firing. The coating process of the exhaust gas purifier and the honeycomb carrier of the present invention, the exhaust gas is reacted into CO2 and H2O under the three-stage filtration of the filter screen, the ceramic honeycomb carrier and the low-temperature catalytic zone, and the micropores on the next wall can filter the soot in the exhaust gas Particles, and the soot particles will be burned under the action of the catalyst coating; the coating process is not only uniform, but also the coated slurry can be fully combined with the ceramic support, so that the filtering effect of the ceramic support is good.
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Description

technical field

[0001] The invention relates to a coating process of an exhaust gas purifier and a honeycomb carrier, which is used for automobile exhaust purification. It belongs to the technical field of automobile equipment. Background technique

[0002] At present, ordinary automobile exhaust purifiers use catalysts to interact with NO, NO in automobile exhaust. 2 react with CO to form CO 2 and N 2 These two kinds of non-polluting gases, but cars equipped with diesel engines, because the exhaust gas of diesel engines contains soot particles, the existing exhaust gas purifiers cannot effectively filter the soot particles, which will cause environmental pollution; while the existing purifiers The catalytic efficiency is low and the exhaust gas purification is not complete.

[0003] The existing honeycomb carrier coating process is to spray the slurry upward on the bottom of the ceramic carrier. The defect of this process is that the slurry is watery, which is not only ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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