CN107559072A - The acidproof exhaust gas filter of cylinder - Google Patents
The acidproof exhaust gas filter of cylinder Download PDFInfo
- Publication number
- CN107559072A CN107559072A CN201610499114.4A CN201610499114A CN107559072A CN 107559072 A CN107559072 A CN 107559072A CN 201610499114 A CN201610499114 A CN 201610499114A CN 107559072 A CN107559072 A CN 107559072A
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- CN
- China
- Prior art keywords
- acidproof
- ceramic honeycomb
- honeycomb carrier
- exhaust gas
- parts
- 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.)
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- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The present invention relates to a kind of acidproof exhaust gas filter of cylinder.It includes Rose Box（1）, the Rose Box（1）Inside it is provided with screen pack（2）, the first ceramic honeycomb carrier（3）With the second ceramic honeycomb carrier（7）, ceramic honey comb surface is coated with acid-proof coating.A kind of acidproof exhaust gas filter of cylinder of the invention, can be effectively acidproof, in screen pack, the first ceramic honeycomb carrier and with the second ceramic honeycomb carrier double-filtration, by the tail gas that main component is CO, HC, NOx, reacts into CO2、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 acidproof exhaust gas filter of cylinder, for purifying vehicle exhaust.Belong to automobile equipment technology
Field.
Background technology
At present, common car tail-gas filter, it is using catalyst and NO, NO in vehicle exhaust2Reacted with CO, it is raw
Into CO2And N2Both uncontaminated gases, but the automobile of diesel engine is equipped with, due to containing in the tail gas of diesel engine
Black smoke particle, existing exhaust gas filter can not effectively filter black smoke particle, can so cause environmental pollution, existing cellular set
Body can not be effectively acidproof, therefore is faced with the risk being corroded in use, there is potential safety hazard.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of acidproof exhaust gas filter of cylinder, this tail gas mistake
Filter can also filter black smoke particle, and black smoke at high temperature while CO, HC, NOx pernicious gas in filtering vehicle exhaust
Particle can progressively burn and aoxidize, and honeycomb substrate can be effectively acidproof.
The object of the present invention is achieved like this：
A kind of acidproof exhaust gas filter of cylinder, including Rose Box, are characterized in：The Rose Box is in cylindrical, in Rose Box
It is provided with screen pack, the first ceramic honeycomb carrier and the second ceramic honeycomb carrier, first ceramic honeycomb carrier and the second pottery
Porcelain honeycomb substrate structure is identical, and shape is corresponding with Rose Box, and the first ceramic honeycomb carrier is densely covered with stomata in the axial direction, institute
The one end for stating stomata is opening, and the other end is provided with closure face, the closure face and open space arrangement, the two neighboring gas
Hole is provided with next door, is provided with next door in cellular micropore, and catalyst coat, the table of the ceramic honey comb are coated with next door
Face is coated with acid-proof coating, and acid-proof coating is mainly made up of following raw materials by weight portion proportioning：13 ~ 45 parts of quartz sand, oil
Burnt 12 ~ 40 parts, 9 ~ 25 parts of wood chip, 8 ~ 20 parts of sodium chloride, 1 ~ 9 part of titanium dioxide, 13 ~ 30 parts of ethanol, 30 ~ 55 parts of water.
The preparation method of the present invention comprises the following steps：
Step 1: quartz sand, petroleum coke and wood chip are pulverized, powder diameter is 400 ~ 600 mesh；
Step 2: in powder and sodium chloride powder the input high temperature resistance furnace that step 1 is obtained, radiant heating, temperature is maintained at
1000 ~ 1200 DEG C, 0.5 ~ 1 hour；
Step 3: powder and titania powder by weight 3 ~ 6 after step 2 pyrolytic semlting:Water is added after 1 mixing
In, ethanol is added thereto while stirring, to all dissolving can acid-proof coating.
A kind of acidproof exhaust gas filter of cylinder of the invention, the hole count of its stomata is 600 holes/square inch.
A kind of acidproof exhaust gas filter of cylinder of the invention, the thickness in its next door is 0.13 ~ 0.14mm.
Compared with prior art, the beneficial effects of the invention are as follows：
A kind of acidproof exhaust gas filter of cylinder of the invention, is carried in screen pack, the first ceramic honeycomb carrier and the second ceramic honeycomb
Under body three-stage filtration, by the tail gas that main component is CO, HC, NOx, CO is reacted into2、H2O、N2And O2, while the micropore on next door
The black smoke particle in waste gas can be effectively filtered, and black smoke particle can be burned off in the presence of catalyst coat, further be carried
High tail gas clean-up effect；Ceramic honey comb surface is coated with acid-proof coating, can be effectively acidproof.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the acidproof exhaust gas filter of cylinder 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,
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.
Embodiment
Referring to Fig. 1-5, the present invention relates to a kind of acidproof exhaust gas filter of cylinder, it includes Rose Box 1, screen pack 2, the
One ceramic honeycomb carrier 3 and the second ceramic honeycomb carrier 7, the left end of Rose Box 1 is inlet exhaust gas 4, and right-hand member is offgas outlet 5,
The screen pack 2, the first ceramic honeycomb carrier 3 and the second ceramic honeycomb carrier 7 are arranged in Rose Box 1, and screen pack 2 is close to tail
At gas import 4, 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 is corresponding with crossing filtering case 1, the first ceramic honeycomb carrier 3 is densely covered with stomata 3.1 in the axial direction, the stomata 3.1
One end is opening 3.6, and the other end is provided with closure face 3.2, the closure face 3.2 and the arranged for interval of opening 3.6, described adjacent two
Individual stomata 3.1 is provided with next door 3.3, is provided with next door 3.3 in cellular micropore 3.4, is applied on next door 3.3 coated with catalyst
Layer 3.5.
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.
The surface of the ceramic honey comb is coated with acid-proof coating, and acid-proof coating is mainly matched by following raw materials by weight portion
It is made：13 ~ 45 parts of quartz sand, 12 ~ 40 parts of petroleum coke, 9 ~ 25 parts of wood chip, 8 ~ 20 parts of sodium chloride, 1 ~ 9 part of titanium dioxide, ethanol 13 ~
30 parts, 30 ~ 55 parts of water.
As a preferred embodiment, the acid-proof coating is mainly made up of following raw materials by weight portion proportioning：Quartz sand 40
Part, 32 parts of petroleum coke, 21 parts of wood chip, 13 parts of sodium chloride, 7 parts of titanium dioxide, 26 parts of ethanol, 48 parts of water.
The preparation method of acid-proof coating, is comprised the steps of：
（1）Quartz sand, petroleum coke and wood chip are pulverized, powder diameter is 400 ~ 600 mesh；
（2）By step（1）In powder and sodium chloride powder the input high temperature resistance furnace of acquisition, radiant heating, temperature is maintained at
1000 ~ 1200 DEG C, 0.5 ~ 1 hour；
（3）Through step（2）Powder after pyrolytic semlting is with titania powder by weight 3 ~ 6:It is added to the water after 1 mixing, side
Stirring side adds ethanol thereto, to all dissolving can acid-proof coating.
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 by-pass filtration of screen pack 2, so
Enter the first ceramic honeycomb carrier 3 afterwards and carry out secondary filtration, enter from the opening 3.6 of stomata 3.1, due to stomata 3.1 at one end
It 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 slave phase
The opening 3.6 of adjacent stomata 3.1 is discharged, and because the diameter of black smoke particle is big compared with micropore 3.4, therefore the black smoke particle in waste gas will be by
Filtering is caught on next door 3.3, and air-flow then passes through from micropore 3.4, enters second from the waste gas of the first ceramic honeycomb carrier 3 discharge
Ceramic honeycomb carrier 7, carry out three-stage filtration, the same secondary filtration of work principle of filter.
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 (3)
1. a kind of acidproof exhaust gas filter of cylinder, including Rose Box（1）, it is characterised in that：The Rose Box（1）In cylinder
Shape, Rose Box（1）Inside it is provided with screen pack（2）, the first ceramic honeycomb carrier（3）With the second ceramic honeycomb carrier（7）, described
One 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 ceramics
Honeycomb substrate（3）Stomata is densely covered with the axial direction（3.1）, the stomata（3.1）One end be opening（3.6）, the other end sets
The closure face of being equipped with（3.2）, the closure face（3.2）And opening（3.6）Arranged for interval, the two neighboring stomata（3.1）Set
There is 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 acid-proof coating, and acid-proof coating is mainly matched by following raw materials by weight portion and made
Into：13 ~ 45 parts of quartz sand, 12 ~ 40 parts of petroleum coke, 9 ~ 25 parts of wood chip, 8 ~ 20 parts of sodium chloride, 1 ~ 9 part of titanium dioxide, ethanol 13 ~ 30
Part, 30 ~ 55 parts of water.
A kind of 2. acidproof exhaust gas filter of cylinder according to claim 1, it is characterised in that：The stomata（3.1）'s
Hole count is 600 holes/square inch.
A kind of 3. acidproof exhaust gas filter of cylinder according to claim 1 or 2, it is characterised in that：The next door（3.3）
Thickness be 0.13 ~ 0.14mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610499114.4A CN107559072A (en) | 2016-06-30 | 2016-06-30 | The acidproof exhaust gas filter of cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610499114.4A CN107559072A (en) | 2016-06-30 | 2016-06-30 | The acidproof exhaust gas filter of cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107559072A true CN107559072A (en) | 2018-01-09 |
Family
ID=60969236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610499114.4A Pending CN107559072A (en) | 2016-06-30 | 2016-06-30 | The acidproof exhaust gas filter of cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107559072A (en) |
-
2016
- 2016-06-30 CN CN201610499114.4A patent/CN107559072A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180109 |
|
| WD01 | Invention patent application deemed withdrawn after publication |