CN107542520A - The anti-oxidant exhaust gas filter of good purification - Google Patents
The anti-oxidant exhaust gas filter of good purification Download PDFInfo
- Publication number
- CN107542520A CN107542520A CN201610489287.8A CN201610489287A CN107542520A CN 107542520 A CN107542520 A CN 107542520A CN 201610489287 A CN201610489287 A CN 201610489287A CN 107542520 A CN107542520 A CN 107542520A
- Authority
- CN
- China
- Prior art keywords
- ceramic honeycomb
- honeycomb carrier
- exhaust gas
- screen pack
- good purification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The present invention relates to a kind of anti-oxidant exhaust gas filter of good purification.It includes Rose Box（1）, the Rose Box（1）Interior edge airflow direction is disposed with the first screen pack（2）, the first ceramic honeycomb carrier（3）, the second ceramic honeycomb carrier（7）With the second screen pack（8）, ceramic honeycomb carrier surface is coated with antioxidant coating.A kind of anti-oxidant exhaust gas filter of good purification of the present invention, ceramic honeycomb carrier can be anti-oxidant, under the filtering of the first screen pack, the first ceramic honeycomb carrier, the second ceramic honeycomb carrier and the second screen pack level Four, by the tail gas that main component is CO, HC, NOx, CO is reacted into2、H2O、N2And O2, while the micropore on next door can effectively filter the black smoke particle in waste gas, and black smoke particle can be burned off in the presence of catalyst coat, further increase tail gas clean-up effect.
Description
Technical field
The present invention relates to a kind of anti-oxidant exhaust gas filter of good purification, for purifying vehicle exhaust.Belong to automobile
Equipment technical field.
Background technology
At present, common car tail-gas filter, it is expelled directly out without filtering, otherwise is exactly filter
It is improper, it is easy to lead and put air pollution and noise pollution；Particularly, the automobile of diesel engine is equipped with, due to diesel engine
Contain black smoke particle in the tail gas of machine, existing exhaust gas filter can not effectively filter black smoke particle, can so cause environment dirty
Dye, existing honeycomb substrate can not be effectively acidproof, causes its service life short, can not meet the needs of client.
Existing honeycomb substrate can not be effectively anti-oxidant, can not meet the needs of client.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of anti-oxidant exhaust gas filter of good purification,
This exhaust gas filter can also filter black smoke particle while CO, HC, NOx pernicious gas in filtering vehicle exhaust, and in height
The lower black smoke particle of temperature can progressively burn and aoxidize, and honeycomb substrate can be effectively anti-oxidant.
The object of the present invention is achieved like this：
A kind of anti-oxidant exhaust gas filter of good purification, including Rose Box, are characterized in：The Rose Box is in cylinder,
Rose Box interior edge airflow direction is disposed with the first screen pack, the first ceramic honeycomb carrier, the second ceramic honeycomb carrier and
Two screen packs, first ceramic honeycomb carrier is identical with the second ceramic honeycomb carrier structure, and shape is corresponding with Rose Box, the
One ceramic honeycomb carrier is densely covered with stomata in the axial direction, and one end of the stomata is opening, and the other end is provided with closure face, institute
The closure face of stating and open space arrangement, the two neighboring stomata are provided with next door, are provided with next door in cellular micropore, every
Catalyst coat is coated with wall, the surface of the ceramic honeycomb carrier is coated with antioxidant coating, the antioxidant coating bag
Include 11-14wt% chromium, 11-14wt% cobalt, 7.5-9.5wt% aluminium, 0.20-0.60wt% yttrium, 0.10-0.50wt%
Hafnium, 0.10-0.30wt% silicon, the nickel of 0.10-0.20wt% zirconium and surplus.
A kind of anti-oxidant exhaust gas filter of good purification of the present invention, the hole count of its stomata is 600 holes/square inch.
A kind of anti-oxidant exhaust gas filter of good purification of the present invention, the thickness in its next door is 0.13 ~ 0.14mm.
A kind of anti-oxidant exhaust gas filter of good purification of the present invention, its first screen pack use copper monoxide material system
Into.
A kind of anti-oxidant exhaust gas filter of good purification of the present invention, its special second screen pack use absorbent charcoal material system
Into.
Compared with prior art, the beneficial effects of the invention are as follows：
A kind of anti-oxidant exhaust gas filter of good purification of the present invention, in the first screen pack, the first ceramic honeycomb carrier, second
Under ceramic honeycomb carrier and the filtering of the second screen pack level Four, by the tail gas that main component is CO, HC, NOx, CO is reacted into2、H2O、
N2And O2, while the micropore on next door can effectively filter the black smoke particle in waste gas, and the black smoke in the presence of catalyst coat
Grain can be burned off, and further increase tail gas clean-up effect；Ceramic honeycomb carrier surface is coated with antioxidant coating, can be effective
Ceramic honey comb surface is prevented to be oxidized.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the anti-oxidant exhaust gas filter of good purification of the present invention.
Fig. 2 is Fig. 1 left view.
Fig. 3 is the schematic cross-section of the first ceramic honeycomb carrier of the present invention.
Fig. 4 is the partial axial section figure of the first ceramic honeycomb carrier of the present invention.
Fig. 5 is the structural representation in the next door of the first ceramic honeycomb carrier of the present invention.
In figure：
Rose Box 1,
First screen pack 2,
First ceramic honeycomb carrier 3,
Stomata 3.1,
Closure face 3.2,
Next door 3.3,
Micropore 3.4,
Catalyst coat 3.5
Opening 3.6,
Inlet exhaust gas 4,
Offgas outlet 5,
Tail gas 6,
Second ceramic honeycomb carrier 7,
Second screen pack 8.
Embodiment
Referring to Fig. 1-5, the present invention relates to a kind of anti-oxidant exhaust gas filter of good purification, it includes Rose Box 1, the
One screen pack 2, the first ceramic honeycomb carrier 3, the second ceramic honeycomb carrier 7 and the second screen pack 8, the left end of Rose Box 1 is tail
Gas import 4, right-hand member are offgas outlet 5, first screen pack 2, the first ceramic honeycomb carrier 3, the and of the second ceramic honeycomb carrier 7
Second screen pack 8 is arranged in Rose Box 1, and the first screen pack 2 is at inlet exhaust gas 4, and the second screen pack 8 is close to offgas outlet
At 5, the Rose Box 1 is in cylinder, and first ceramic honeycomb carrier 3 is identical with the structure of the second honeycomb substrate 7, and shape
Corresponding with crossing filtering case 1, the first ceramic honeycomb carrier 3 is densely covered with stomata 3.1 in the axial direction, and one end of the stomata 3.1 is
Opening 3.6, the other end is provided with closure face 3.2, the closure face 3.2 and the arranged for interval of opening 3.6, the two neighboring stomata
3.1 are provided with next door 3.3, are provided with next door 3.3 in cellular micropore 3.4, and catalyst coat 3.5 is coated with next door 3.3.
Wherein, the hole count of stomata 3.1 is 600 holes/square inch, and the thickness in next door 3.3 is 0.13 ~ 0.14mm.
First screen pack 2 is made of copper monoxide material, and the second screen pack 8 is made of absorbent charcoal material.By
There is very strong oxidisability in copper monoxide, so when the carbon monoxide with reproducibility is run into moment will be carried out to it
Oxidation, produce and do not pollute the carbon dioxide of air, whole process is exactly a redox process, the second screen pack 8
Can be to 7 untreated CO gas of the first screen pack 2 and the second ceramic honeycomb carrier for the screen pack with activated carbon
Adsorbed.
The surface of the ceramic honeycomb carrier is coated with antioxidant coating, and the antioxidant coating includes 11-14wt%'s
Chromium, 11-14wt% cobalt, 7.5-9.5wt% aluminium, 0.20-0.60wt% yttrium, 0.10-0.50wt% hafnium, 0.10-0.30wt%
Silicon, 0.10-0.20wt% zirconium and the nickel of surplus.It can be noted that there is the aluminium reduced to contain for it from above-mentioned composition
Amount, this reduces SRZ formation in the alloy for be easily formed SRZ.
More aluminium may produce reaction zone problem in antioxidant coating, and less aluminium can not provide enough aluminium
Maintain good protection class.Less active element（Y, Hf, Si and Zr）Oxidation kinetics may be improved, and it is more active
Element may result in short-circuit oxidation.More chromium may reduce leading phase, γ phases（gamma prime）, and less chromium
Corrosion and heat resistant may be damaged.Extremely suitable composition for antioxidant coating is located exactly among above range.
Operation principle：The present invention is fabricated to honeycomb ceramic carrier using cordierite, and is built in diesel engine vent gas purification
In device, the waste gas inlet exhaust gas 4 with black smoke particle of diesel engine discharge enters, by the one-level mistake of the first screen pack 2
Filter, secondary filtration is carried out subsequently into the first ceramic honeycomb carrier 3, is entered from the opening 3.6 of stomata 3.1, because stomata 3.1 exists
One end is opening 3.6, and is then closure face 3.2 in the other end, therefore waste gas can be by the next door 3.3 with micropore 3.4, then
Discharged from the opening 3.6 of adjacent air holes 3.1, because the diameter of black smoke particle is big compared with micropore 3.4, therefore the black smoke particle in waste gas
It will be caught by filtering on next door 3.3, air-flow then passes through from micropore 3.4, enters from the waste gas of the first ceramic honeycomb carrier 3 discharge
Second ceramic honeycomb carrier 7, carry out three-stage filtration, the same secondary filtration of work principle of filter, from the useless of the second ceramic honeycomb carrier 7 discharge
Gas enters the second screen pack 8 and carries out level Four filtering, and the carbon monoxide of residual is adsorbed.
Active rare earth of the catalyst coat 3.5 containing noble metal, Main Ingredients and Appearance have Pt, Pd, Rh, Al2O3、Ce、La、
Zr, Cu, Mn, the waste gas of diesel combustion（The predominantly pernicious gas such as CO, HC, NOx）During through micropore 3.4, next door is coated
Catalyst coat 3.5 on 3.3 will strengthen CO, HC, NOxThe activity of three kinds of gas, it is promoted to carry out certain oxidationreduction
Reaction is learned, wherein CO is oxidized to colourless nontoxic carbon dioxide at high temperature, and HC compounds resolve into water at high temperature
（H2O）And carbon dioxide, NOxIt is reduced into nitrogen and oxygen.
When diesel exhaust gas temperature reaches 375 degrees Celsius, in the presence of catalyst coat 3.5, on next door 3.3
Black smoke particle can progressively burn and aoxidize, and the purifying rate of black smoke particle about reaches more than 85%, is taken the photograph when reaction temperature reaches 500
Catalyst and black smoke particle reaction when family name spends are so that completely burned is fallen（Catalysis burning）, now the purifying rate of black smoke particle is reachable
More than 90%.
Claims (5)
1. a kind of anti-oxidant exhaust gas filter of good purification, including Rose Box（1）, it is characterised in that：The Rose Box（1）
In cylinder, Rose Box（1）Interior edge airflow direction is disposed with the first screen pack（2）, the first ceramic honeycomb carrier（3）,
Two ceramic honeycomb carriers（7）With the second screen pack（8）, first ceramic honeycomb carrier（3）With the second ceramic honeycomb carrier（7）
Structure is identical, and shape and Rose Box（1）It is corresponding, the first ceramic honeycomb carrier（3）Stomata is densely covered with the axial direction（3.1）,
The stomata（3.1）One end be opening（3.6）, the other end is provided with closure face（3.2）, the closure face（3.2）And opening
（3.6）Arranged for interval, the two neighboring stomata（3.1）It is provided with next door（3.3）, next door（3.3）On be provided with cellular
Micropore（3.4）, next door（3.3）It is upper to be coated with catalyst coat（3.5）, the ceramic honey comb surface is coated with antioxidant coating,
The antioxidant coating include 11-14wt% chromium, 11-14wt% cobalt, 7.5-9.5wt% aluminium, 0.20-0.60wt% yttrium,
0.10-0.50wt% hafnium, 0.10-0.30wt% silicon, the nickel of 0.10-0.20wt% zirconium and surplus.
A kind of 2. anti-oxidant exhaust gas filter of good purification according to claim 1, it is characterised in that：The stomata
（3.1）Hole count be 600 holes/square inch.
A kind of 3. anti-oxidant exhaust gas filter of good purification according to claim 1 or 2, it is characterised in that：It is described
Next door（3.3）Thickness be 0.13 ~ 0.14mm.
A kind of 4. anti-oxidant exhaust gas filter of good purification according to claim 1, it is characterised in that：Described first
Screen pack（2）It is made of copper monoxide material.
A kind of 5. anti-oxidant exhaust gas filter of good purification according to claim 1, it is characterised in that：Described second
Screen pack（8）It is made of absorbent charcoal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610489287.8A CN107542520A (en) | 2016-06-29 | 2016-06-29 | The anti-oxidant exhaust gas filter of good purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610489287.8A CN107542520A (en) | 2016-06-29 | 2016-06-29 | The anti-oxidant exhaust gas filter of good purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107542520A true CN107542520A (en) | 2018-01-05 |
Family
ID=60962055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610489287.8A Pending CN107542520A (en) | 2016-06-29 | 2016-06-29 | The anti-oxidant exhaust gas filter of good purification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107542520A (en) |
-
2016
- 2016-06-29 CN CN201610489287.8A patent/CN107542520A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107542543A (en) | The anti-oxidant exhaust gas filter of environment-friendly type | |
| CN107288712A (en) | Adjust the exhaust gas filter of the good purification of tail gas resistance | |
| CN107227996A (en) | The exhaust gas filter of the good purification of effective denitrification | |
| CN107542520A (en) | The anti-oxidant exhaust gas filter of good purification | |
| CN107489498A (en) | The exhaust gas filter of good purification and the coating processes of honeycomb substrate | |
| CN107288713A (en) | The coating processes of environment-friendly type exhaust gas filter and honeycomb substrate | |
| CN107297139A (en) | The coating processes of trapezoidal exhaust gas filter and honeycomb substrate | |
| CN107542530A (en) | The exhaust gas filter of good purification | |
| CN107542544A (en) | The anti-oxidant exhaust gas filter of black smoke good filtration effect | |
| CN106481386A (en) | The exhaust gas filter of good purification | |
| CN107542539A (en) | The anti-oxidant exhaust gas filter of cylinder | |
| CN107537583A (en) | Trapezoidal oxidation-resistant ceramic honeycomb substrate | |
| CN107542517A (en) | The trapezoidal exhaust gas filter of anti-oxidative | |
| CN107542519A (en) | Anti-oxidative exhaust gas filter | |
| CN107542523A (en) | The anti-oxidant exhaust gas filter of fire extinguishing type | |
| CN107542529A (en) | Environment-friendly type exhaust gas filter | |
| CN107542525A (en) | Anti-oxidative automobile exhaust purifier | |
| CN107542518A (en) | Anti-oxidative exhaust purifier | |
| CN107542542A (en) | Without the anti-oxidant exhaust gas filter of black smoke | |
| CN107542521A (en) | The anti-oxidant exhaust gas filter of noise reducing type | |
| CN107542537A (en) | Triangle oxidation-resistant ceramic honeycomb substrate | |
| CN107537582A (en) | Square oxidation-resistant ceramic honeycomb substrate | |
| CN107237665A (en) | Adjust the environment-friendly type exhaust gas filter of tail gas resistance | |
| CN107542540A (en) | Irregular shape oxidation-resistant ceramic honeycomb substrate | |
| CN106481389A (en) | The exhaust gas filter of good purification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180105 |