CN107376789A - A kind of calciner for preparing three-way catalyst - Google Patents
A kind of calciner for preparing three-way catalyst Download PDFInfo
- Publication number
- CN107376789A CN107376789A CN201710699826.5A CN201710699826A CN107376789A CN 107376789 A CN107376789 A CN 107376789A CN 201710699826 A CN201710699826 A CN 201710699826A CN 107376789 A CN107376789 A CN 107376789A
- Authority
- CN
- China
- Prior art keywords
- combustion flue
- carrier
- calciner
- way catalyst
- calcined
- 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.)
- Withdrawn
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 19
- 238000002485 combustion reaction Methods 0.000 claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 abstract description 6
- 238000000576 coating method Methods 0.000 abstract description 6
- 239000000969 carrier Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 238000001354 calcination Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- RCFVMJKOEJFGTM-UHFFFAOYSA-N cerium zirconium Chemical compound [Zr].[Ce] RCFVMJKOEJFGTM-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
- B01J6/001—Calcining
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
Abstract
The present invention relates to purifying vehicle exhaust field, specifically a kind of calciner for preparing three-way catalyst, including burner hearth, the feed track for conveying several cated carriers of load is provided with the outside of burner hearth, it is calcined on the annular horizontal combustion flue that carrier in the feed track is delivered in burner hearth, it is delivered to tilt from horizontal combustion flue again and is calcined on combustion flue, then by rotating the carrier after tilting combustion flue output roasting.The present invention is calcined first in horizontal combustion flue by heater to the perisporium of carrier, and then carrier both ends are calcined in inclination combustion flue, thus can ensure that the roasting of the coating on whole carrier is more uniformly distributed, so as to improve the performance of catalyst.
Description
Technical field
The present invention relates to purifying vehicle exhaust field, specifically a kind of calciner for preparing three-way catalyst.
Background technology
Existing catalyst is by cellular ceramics or metallic carrier and is attached to supported catalyst coating and forms.Urge
Agent coating is generally by the oxide material with large specific surface area（Such as aluminum oxide）, hydrogen-storing material and be dispersed in oxide or
The noble metal active component on hydrogen-storing material surface（Often it is Pt（Platinum）、Pd（Palladium）、Rh（Rhodium）In one or more）Composition.Its
In hydrogen-storing material be generally the composite oxides containing cerium zirconium, it is by the oxygen in adsorption storage tail gas or discharges oxygen to adjust
The ratio of oxidizing component and reproducibility component in tail gas, while making carbon monoxide and oxidized hydrocarbon oxygen, nitrogen oxygen
Compound is reduced.For current three-way catalyst generally all using double coating structures, coating is due to not enough uniformly, to lead in roasting
Cause the clean-up effect of catalyst unsatisfactory.
The content of the invention
For above-mentioned technical problem, present invention offer is a kind of to make carrier calcination more uniformly prepare three-way catalyst
Calciner.
Technical scheme is used by the present invention solves above-mentioned technical problem：A kind of roasting dress for preparing three-way catalyst
Put, including burner hearth, burner hearth outside, which is provided with, conveys several feed tracks for loading cated carriers, the carrier conveying in the feed track
It is calcined on annular horizontal combustion flue in burner hearth, then is delivered to tilt from horizontal combustion flue and is calcined on combustion flue, then
The carrier after being calcined is exported by tilting combustion flue.
Preferably, the horizontal combustion flue perisporium is evenly equipped with heater.
Preferably, horizontal combustion flue includes baking zone and roast area, carrier is first dried in baking zone, is then sent to roasting
Area carries out heating roasting.
Preferably, the inclination combustion flue lower end is provided with heater.
Preferably, the inclination combustion flue can radial rotary.
Preferably, the uphill furnace pipeline outer wall is fixed with support beam, it is connected with the support beam and is driven by servomotor
The rotating shaft of rotation, the rotating shaft of rotation drive the inclination combustion flue radial rotary by support beam.
As can be known from the above technical solutions, the present invention is carried out first in horizontal combustion flue by heater to the perisporium of carrier
Roasting, then carrier both ends are calcined in inclination combustion flue, thus can ensure that the coating roasting on whole carrier is more equal
It is even, so as to improve the performance of catalyst.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
The present invention is discussed in detail with reference to Fig. 1, illustrative examples of the invention and explanation are used for explaining this herein
Invention, but it is not as a limitation of the invention.
A kind of calciner for preparing three-way catalyst, including burner hearth 61, are provided with the outside of burner hearth to convey and several are loaded with applying
The feed track 62 of the carrier 4 of layer, it is calcined on the annular horizontal combustion flue 63 that the carrier in the feed track is delivered in burner hearth, then
It is delivered to tilt from horizontal combustion flue and is calcined on combustion flue 64, then by rotating the carrier after tilting combustion flue output roasting.
In feed track, several carriers are arranged by end to end mode, by pushing the carrier of feed track one end, make feed track another
The carrier at end enters the horizontal combustion flue, so as to ensure the security of conveying and convenience, is advantageously implemented automated production.
The horizontal combustion flue of the present invention includes baking zone 64 and roast area 65, and carrier is first dried in baking zone, is then sent to roast area and enters
Row heating roasting.Because the temperature difference of baking zone and roast area is larger, on the one hand both, which separate out, is advantageous to improve roasting effect
Rate, on the other hand improve the uniformity of roasting.
The present invention carries out heating roasting in horizontal combustion flue to carrier perisporium；Because horizontal combustion flue uses annular layout, and
Heater 66 is evenly equipped with horizontal combustion flue perisporium, so as to ensure the uniformity of perisporium heating, and then causes the roasting of carrier perisporium
Burning is more uniformly distributed.In implementation process, because adjacent two carrier joins end to end, its end contacted there may be roasting inequality
Phenomenon.Therefore, carrier is delivered to inclination combustion flue by the present invention again, so as to tilt in combustion flue by calciner to carrier both ends
Heating roasting is carried out, to improve the uniformity of whole carrier calcination.
In implementation process, the inclination combustion flue lower end is provided with heater 67, and the carrier through the roasting of horizontal combustion flue is by pushing away
Squeeze and can be glided automatically along combustion flue is tilted, during downslide, tilting the heater of combustion flue lower end can stop that carrier continues to glide,
And pair carry out heating roasting with the carrier ends of the heater contacts；And tilt combustion flue can radial rotary, that is, be calcined carrier one
The carrier other end and heater contacts are made by rotation behind end, so as to carry out heating roasting to the other end, finally by rotation
Tilt the carrier after combustion flue output roasting.
In implementation process, the uphill furnace pipeline outer wall is fixed with support beam 68, and the support is sustainable to tilt combustion flue, typically
Ground, tilt combustion flue use with horizontal combustion flue diameter identical loop configuration, be on the one hand advantageous to rotate, be on the other hand advantageous to close
Envelope；The rotating shaft 69 rotated by servomotor intermittent driving is connected with the support beam, rotating shaft is vertical with the axis for tilting combustion flue,
So that the area occupied for tilting combustion flue is smaller；The rotating shaft of rotation drives the inclination combustion flue radial rotary by support beam, in reality
During applying, tilting 180 ° of combustion flue rotation can be calcined to carrier both ends, and carrier can conveniently be exported by being rotated by 90 °.
Above-mentioned embodiment is used for illustrative purposes only, and is not limitation of the present invention, relevant technical field
Those of ordinary skill, can be so that various changes can be made and modification without departing from the spirit and scope of the present invention, therefore institute
There is equivalent technical scheme also to belong to scope of the invention.
Claims (6)
1. a kind of calciner for preparing three-way catalyst, including burner hearth, it is characterised in that：It is provided with the outside of burner hearth and conveys several bear
The feed track of cated carrier is carried, is calcined on the annular horizontal combustion flue that the carrier in the feed track is delivered in burner hearth,
It is delivered to tilt from horizontal combustion flue again and is calcined on combustion flue, then exports the carrier after being calcined by tilting combustion flue.
2. the calciner of three-way catalyst is prepared according to claim 1, it is characterised in that：The horizontal combustion flue perisporium is equal
It is furnished with heater.
3. the calciner of three-way catalyst is prepared according to claim 1, it is characterised in that：Horizontal combustion flue includes baking zone
And roast area, carrier are first dried in baking zone, are then sent to roast area and carry out heating roasting.
4. the calciner of three-way catalyst is prepared according to claim 1, it is characterised in that：The inclination combustion flue lower end is set
Having heaters.
5. the calciner of three-way catalyst is prepared according to claim 4, it is characterised in that：The inclination combustion flue can be radially
Rotation.
6. the calciner of three-way catalyst is prepared according to claim 5, it is characterised in that：The uphill furnace pipeline outer wall is consolidated
Surely there is support beam, be connected with the support beam and driven by the rotating shaft of servomotor driving rotation, the rotating shaft of rotation by support beam
The inclination combustion flue radial rotary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710699826.5A CN107376789A (en) | 2017-08-16 | 2017-08-16 | A kind of calciner for preparing three-way catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710699826.5A CN107376789A (en) | 2017-08-16 | 2017-08-16 | A kind of calciner for preparing three-way catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107376789A true CN107376789A (en) | 2017-11-24 |
Family
ID=60352535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710699826.5A Withdrawn CN107376789A (en) | 2017-08-16 | 2017-08-16 | A kind of calciner for preparing three-way catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107376789A (en) |
-
2017
- 2017-08-16 CN CN201710699826.5A patent/CN107376789A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171124 |
|
| WW01 | Invention patent application withdrawn after publication |