CN107542551A - Irregular shape acid-proof ceramics honeycomb substrate - Google Patents
Irregular shape acid-proof ceramics honeycomb substrate Download PDFInfo
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- CN107542551A CN107542551A CN201610469697.6A CN201610469697A CN107542551A CN 107542551 A CN107542551 A CN 107542551A CN 201610469697 A CN201610469697 A CN 201610469697A CN 107542551 A CN107542551 A CN 107542551A
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- acid
- irregular shape
- next door
- stomata
- honeycomb substrate
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The present invention relates to a kind of irregular shape acid-proof ceramics honeycomb substrate.It includes the first end to end side（1）, the second side（2）, the 3rd side（3）With the 4th side（11）The cylindrical body of the irregular shape of composition, cylindrical body are densely covered with stomata in the axial direction（4）, stomata（4）One end be opening（9）, the other end is provided with closure face（5）, the closure face（5）And opening（9）Arranged for interval, two neighboring stomata（4）Between be provided with next door（6）, next door（6）On be provided with micropore in cellular arrangement（7）, next door（6）It is upper to be coated with catalyst coat（10）, ceramic honey comb surface is coated with acid-proof coating.A kind of irregular shape acid-proof ceramics honeycomb substrate of the present invention, acid resistance is good, and 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 irregular shape acid-proof ceramics honeycomb substrate, for purifying vehicle exhaust.Belong to Ceramic manufacturing
Equipment technical field.
Background technology
At present, the automobile exhaust purifier of unobstructed application both at home and abroad, its catalyst carrier are typically all carried using ceramic honeycomb
Body, this carrier are to add adhesive with synthesis of dichroite raw material, burn and lose agent, blended spice, pugging, extrusion, drying, sintering,
Then impregnated catalyst re-dry is made.In use, it is put into exhaust purifier metal shell stage casing.
Conventional ceramic honeycomb carrier is generally square cylinder, and it is net that the ceramic honeycomb carrier of such a shape is loaded into tail gas
When changing in the metal shell of device, often cause the space between ceramic honeycomb carrier and metal shell big so that tail gas clean-up
Device can not effectively utilize the space of automobile chassis, and some producers can add the pottery of small dimension to plug the gap in gap
Porcelain honeycomb substrate, this can cause the globality poor of the ceramic honeycomb carrier in metal-back, increase the resistance during vent gas treatment,
Tail gas clean-up effect is reduced, and honeycomb substrate is when mounted, complex operation, and efficiency is low；The gas of such a honeycomb substrate simultaneously
Hole is clear opening, poor to the waste gas purification effect containing black smoke particle.
Existing honeycomb substrate can not be effectively acidproof, 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 irregular shape acid-proof ceramics honeycomb substrate, this pottery
It is porcelain honeycomb substrate good integrity, good purification, easy for installation, can be effectively acidproof.
The object of the present invention is achieved like this：
A kind of irregular shape acid-proof ceramics honeycomb substrate, including cylindrical body, are characterized in：The section of the cylindrical body is not
Regular shape, including end to end first while, second while, the 3rd while and when the 4th, described first while, second while, the 3rd side and
The junction on the 4th side uses round-corner transition, described first while, second while and the both sides extended line on the 4th side be crossed to form one
Right angled triangle, the cylindrical body are 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, the closure face and open space arrangement, are provided with next door between the two neighboring stomata 4, are provided with next door and are in
The micropore of cellular arrangement, catalyst coat is coated with next door, the honeycomb substrate surface is coated with acid-proof coating, and this is acidproof
Coating is mainly made up of following raw materials by weight portion proportioning：13 parts of quartz sand, 12 parts of petroleum coke, 9 parts of wood chip, 8 parts of sodium chloride,
1 part of titanium dioxide, 13 parts of ethanol, 30 parts of water；
The preparation method of the acid-proof coating, is comprised the steps of：
（1）Quartz sand, petroleum coke and wood chip are pulverized, powder diameter is 400 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 DEG C, 0.5 hour；
（3）Through step（2）Powder after pyrolytic semlting is with titania powder by weight 3:It is added to the water after 1 mixing, while stirring
Mix side and add ethanol thereto, microelectronics surface acid-proof coating can be obtained to all dissolvings.
A kind of irregular shape acid-proof ceramics honeycomb substrate of the present invention, the hole count of its stomata is 600 holes/square inch.
A kind of irregular shape acid-proof ceramics honeycomb substrate of the present 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 irregular shape acid-proof ceramics honeycomb substrate of the present invention, good integrity, increased to greatest extent in the confined space
Filtering surface accumulates, and easy for installation, good purification；Micropore on next door can effectively filter the black smoke particle in waste gas, and urge
Black smoke particle can be burned off in the presence of agent coating, further increase tail gas clean-up effect；The present invention is by by raw material
The method of aqua spraying is processed into, one kind, which is prepared, can be sprayed directly on ceramic honey comb surface, form one layer of densification, consolidation
Protective layer.
Brief description of the drawings
Fig. 1 is a kind of structural representation of irregular shape acid-proof ceramics honeycomb substrate of the present invention.
Fig. 2 is a kind of partial axial section figure of irregular shape acid-proof ceramics honeycomb substrate of the present invention.
Fig. 3 is the structural representation in the next door of the present invention.
In figure：
First side 1,
Second side 2,
3rd side 3,
Stomata 4,
Closure face 5,
Next door 6,
Micropore 7,
Tail gas 8,
Opening 9,
Catalyst coat 10,
4th side 11.
Embodiment
Referring to Fig. 1-3, the present invention relates to a kind of irregular shape acid-proof ceramics honeycomb substrate, and it includes cylindrical body, described
The section of cylindrical body is irregular shape, including end to end first at 1, second the 2, the 3rd in 3 and the 4th while 11, it is described
First at 1, second the 2, the 3rd in 3 and the 4th while 11 junction use round-corner transition, described first at 1, second 2 and
The both sides extended line on four sides 11 is crossed to form a right angled triangle, and the cylindrical body is densely covered with stomata 4, institute in the axial direction
The one end for stating stomata 4 is opening 9, and the other end is provided with closure face 5, the closure face 5 and the arranged for interval of opening 9, described adjacent
Next door 6 is provided between two stomatas 4, the micropore 7 in cellular arrangement is provided with next door 6, is applied on next door 6 coated with catalyst
Layer 10.
Wherein, the hole count of stomata 4 is 600 holes/square inch, and the thickness in next door 6 is 0.13 ~ 0.14mm.
The ceramic honey comb surface is coated with acid-proof coating, and this acid-proof coating is mainly matched by following raw materials by weight portion
It is made：13 parts of quartz sand, 12 parts of petroleum coke, 9 parts of wood chip, 8 parts of sodium chloride, 1 part of titanium dioxide, 13 parts of ethanol, 30 parts of water.
The preparation method of the acid-proof coating, is comprised the steps of：
（1）Quartz sand, petroleum coke and wood chip are pulverized, powder diameter is 400 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 DEG C, 0.5 hour；
（3）Through step（2）Powder after pyrolytic semlting is with titania powder by weight 3:It is added to the water after 1 mixing, while stirring
Mix side and add ethanol thereto, microelectronics surface acid-proof coating can be obtained to all dissolvings.
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 with black smoke particle of diesel engine discharge enters from the opening 9 of stomata 4, because stomata 4 is opened at one end
Mouthfuls 9, and be then closure face 5 in the other end, therefore waste gas can be by the next door 6 with micropore 7, then opening from adjacent air holes 4
Mouth 9 is discharged, and because the diameter of black smoke particle is big compared with micropore 7, therefore the black smoke particle in waste gas will catch next door 6 by filtering
On, air-flow then passes through from micropore 7.
Active rare earth of the catalyst coat 10 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 7, coat on next door 6
Catalyst coat 10 will strengthen CO, HC, NOxThe activity of three kinds of gas, it is promoted to carry out certain oxidationreduction chemistry anti-
Should, wherein CO is oxidized to colourless nontoxic carbon dioxide at high temperature, and HC compounds resolve into water at high temperature（H2O）With
Carbon dioxide, NOxIt is reduced into nitrogen and oxygen.
When diesel exhaust gas temperature reaches 375 degrees Celsius, in the presence of catalyst coat 10, the black smoke on next door 6
Particle can progressively burn and aoxidize, and the purifying rate of black smoke particle about reaches more than 85%, when reaction temperature reaches 500 degrees Celsius
When catalyst and black smoke particle reaction fall so as to completely burned（Catalysis burning）, now the purifying rate of black smoke particle up to 90% with
On.
Claims (3)
1. a kind of irregular shape acid-proof ceramics honeycomb substrate, including cylindrical body, it is characterised in that：The section of the cylindrical body
For irregular shape, including the first end to end side（1）, the second side（2）, the 3rd side（3）With the 4th side（11）, first side
（1）, the second side（2）, the 3rd side（3）With the 4th side（11）Junction use round-corner transition, first side（1）, the second side
（2）With the 4th side（11）Both sides extended line be crossed to form a right angled triangle, the cylindrical body is gathered in the axial direction
There is stomata（4）, the stomata（4）One end be opening（9）, the other end is provided with closure face（5）, the closure face（5）With open
Mouthful（9）Arranged for interval, the two neighboring stomata（4）Between be provided with next door（6）, next door（6）On be provided with cellular arrangement
Micropore（7）, next door（6）It is upper to be coated with catalyst coat（10）, the ceramic honey comb surface is coated with acid-proof coating, and this is acidproof
Coating is mainly made up of following raw materials by weight portion proportioning：13 parts of quartz sand, 12 parts of petroleum coke, 9 parts of wood chip, 8 parts of sodium chloride,
1 part of titanium dioxide, 13 parts of ethanol, 30 parts of water；
The preparation method of the acid-proof coating, is comprised the steps of：
（1）Quartz sand, petroleum coke and wood chip are pulverized, powder diameter is 400 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 DEG C, 0.5 hour；
（3）Through step（2）Powder after pyrolytic semlting is with titania powder by weight 3:It is added to the water after 1 mixing, while stirring
Mix side and add ethanol thereto, microelectronics surface acid-proof coating can be obtained to all dissolvings.
A kind of 2. irregular shape acid-proof ceramics honeycomb substrate according to claim 1, it is characterised in that：The stomata（4）
Hole count be 600 holes/square inch.
A kind of 3. irregular shape acid-proof ceramics honeycomb substrate according to claim 1 or 2, it is characterised in that：The next door
（6）Thickness be 0.13 ~ 0.14mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610469697.6A CN107542551A (en) | 2016-06-26 | 2016-06-26 | Irregular shape acid-proof ceramics honeycomb substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610469697.6A CN107542551A (en) | 2016-06-26 | 2016-06-26 | Irregular shape acid-proof ceramics honeycomb substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107542551A true CN107542551A (en) | 2018-01-05 |
Family
ID=60959927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610469697.6A Pending CN107542551A (en) | 2016-06-26 | 2016-06-26 | Irregular shape acid-proof ceramics honeycomb substrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107542551A (en) |
-
2016
- 2016-06-26 CN CN201610469697.6A patent/CN107542551A/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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180105 |