Particulate filter carrier of diesel engine

A particulate filter and filter technology, which is applied to machines/engines, mechanical equipment, engine components, etc., can solve problems such as inability to reach diesel engine exhaust emissions, and achieve reasonable distribution of micropore pore size, good capture effect, and increased adsorption time. Effect

Inactive Publication Date: 2013-10-16
JIANGXI BAOAN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the problem that the existing honeycomb ceramic filter in the prior art cannot meet the Euro V standard for diesel engine exhaust emissions, the present invention provides a filter

Method used

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  • Particulate filter carrier of diesel engine
  • Particulate filter carrier of diesel engine

Examples

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Effect test

Embodiment 1

[0024] In Example 1, the diesel particulate filter carrier includes a filter body 1, the filter body is a cylinder, the filter body has honeycomb holes 2 inside, and the surface of the pore walls 3 of the peaks and holes is coated with an active catalyst, The plugs 4 (the shape of the plugs match the honeycomb holes) are alternately pressed into the two ends of the spaced honeycomb holes, and the filter body is made of 87wt% cordierite, 4wt% andalusite, 3wt% silicon carbide and 6wt% The fiber carbon ball mill is mixed, and then 3% of the binder by weight of the above mixture, 2% lubricant and appropriate amount of water are added and prepared according to the following method:

[0025] 1. First process cordierite, andalusite and silicon carbide into powder and sieving.

[0026] 2. According to the above ratio, the processed powders and fiber carbon are dry blended into a dry blend.

[0027] 3. Add bonding agent, lubricant and water to the dry mix to mix and knead to make mud.

[0028...

Embodiment 2

[0033] In Embodiment 2, the diesel particulate filter carrier includes a filter body 1, the filter body is a cylinder, the filter body has honeycomb pores, and the surface of the pore walls 3 of the pits are coated with an active catalyst. The two ends of the spaced honeycomb holes are alternately pressed into plugs 4 (the plug shape matches the honeycomb holes). The filter body is made of 90wt% cordierite, 3wt% andalusite, 3wt% silicon carbide and 4wt% Fibrous carbon ball milling and mixing, adding 3% binder, 2% lubricant and appropriate amount of water from the above mixture, and preparing it as follows:

[0034] 1. First process cordierite, andalusite and silicon carbide into powder and sieving.

[0035] 2. According to the above ratio, the processed powders and fiber carbon are dry blended into a dry blend.

[0036] 3. Add bonding agent, lubricant and water to the dry mix to mix and knead to make mud.

[0037] 4. The stale mud is filtered and extruded into a wet billet.

[0038] 5...

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Abstract

The invention discloses a particulate filter carrier of a diesel engine. The particulate filter carrier of the diesel engine comprises a filter body (1), the filter body is a cylinder, and honeycomb holes (2) are formed in the filter body. 84-90wt% of cordierite, 3-5wt% of andalusite, 2-5wt% of silicon carbide and 5-6wt% of fiber carbon are mixed in a ball-milling mode, then, adhesive, lubricant and water are added to the mixture, aging is performed after mixing is performed in a ball-milling mode, and the mixture undergoes extrusion forming, surface drying forming and high-pressure firing to form the filter body. The surfaces of the hole walls (3) of the honeycomb holes are coated with an active catalyst layer, end caps (4) are arranged at the two ends of each honeycomb hole respectively in a staggered mode, and the filter carrier is formed after the drying process. The particulate filter carrier of the diesel engine is extra large in size, thus, the specific surface area of the carrier can be greatly promoted, the filter carrier is made to have a good capture effect, comprehensive performance balance between the high porosity and the high compressive strength is achieved, the filtering effect is good, and the exhaust emission of the diesel engine can reach the EURO V standards.

Description

Technical field [0001] The invention relates to a filter carrier, in particular to a filter carrier used for filtering particulates in diesel engine exhaust. Background technique [0002] As we all know, diesel engines are widely used as the power of automobiles and construction machinery because of their low fuel consumption, high thermal efficiency and low emissions, as well as good economy, power and reliability. But the exhaust from diesel engines contains a large number of harmful particles (about 30-80 times that of gasoline vehicles), and these micro-particles are small, light in weight, and harmful. They can be suspended in the atmosphere for a long time, pollute the environment, and are easily affected by the human body. It is inhaled and deposited in the alveoli, causing great harm to human health. Particle capture technology is currently recognized as the most effective particle purification technology. In order to effectively solve the problem of environmental and h...

Claims

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Application Information

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IPC IPC(8): F01N3/022F01N3/035
Inventor 王建忠贾奇边义军韩昭
Owner JIANGXI BAOAN NEW MATERIAL TECH
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