CN105498616B - A kind of motor vehicle vent gas purification catalysis device noble metal component high dispersive adding set - Google Patents
A kind of motor vehicle vent gas purification catalysis device noble metal component high dispersive adding set Download PDFInfo
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- CN105498616B CN105498616B CN201510817231.6A CN201510817231A CN105498616B CN 105498616 B CN105498616 B CN 105498616B CN 201510817231 A CN201510817231 A CN 201510817231A CN 105498616 B CN105498616 B CN 105498616B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
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- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/01—Engine exhaust gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/2204—Mixing chemical components in generals in order to improve chemical treatment or reactions, independently from the specific application
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- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Combustion & Propulsion (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a kind of motor vehicle vent gas purification catalysis device noble metal component high dispersive adding set, including platen, described platen is provided with two pairs of foot stools for being used for supporting platen, described foot stool includes two foot levers, described platen is provided with some funnel positioning holes through platen plate face, separatory funnel is provided with described funnel positioning hole, separatory funnel is provided with liquid separatnig valve, scattered revolving sleeve is provided with below described platen, described scattered revolving sleeve includes stack shell, bucket bottom, top cover, described top cover is provided with charging aperture, the dropping liquid direction of separatory funnel is towards charging aperture, bucket bottom is provided with drainage conduit, drainage conduit is provided with baiting valve.The beneficial effects of the invention are as follows：It is rational in infrastructure, merging for exhaust purification catalytic device coating slurry and noble metal component can be fast and effeciently realized, dispersion effect is good in the slurry for noble metal, can ensure that the uniform component distribution such as noble metal, stability are good in the slurry of acquisition.
Description
Technical field
The invention belongs to exhaust purification catalytic device coating slurry noble metal adding technique field, more particularly to a kind of motor vehicle
Exhaust purification catalytic device noble metal component high dispersive adding set.
Background technology
With the getting worse of automobile exhaust pollution, in order to suppress the generation of harmful substance in tail gas, national governments are to vapour
The discharge of tail gas proposes strict control.Wherein European standard is the Main Auto discharge standard that current China uses for reference.I
Pollutant emission limit is substantially equal to European emission standard in state's motor vehicle emission standard, and similar title is also continued to use in native land
Exhale, but both still have certain technological disparity.What China formulated《Light-duty vehicle pollutant emission limit and measuring method (I)》Deng
Imitate in " the standard of Europe I "；《Light-duty vehicle pollutant emission limit and measuring method (II)》It is equivalent to " the standard of Europe II ".National environmental protection
General bureau disclosed the motor vehicle emission Chinese Industrial Standards (CIS) equivalent to Europe III and Europe IV on April 28th, 2007.At present, State Environmental Protection Administration
Regulation implements in full the discharge standard of state V on January 1st, 2018.In a word, it is increasingly strict with Abgasgesetz, it is dirty to vehicle exhaust
The preventing and controlling of dye are very urgent.
At present, exhaust gas catalytic converter is installed into the effective way of Preventing Automobile Exhaust.Therefore, catalysis
Workers are made that long-term and unremitting effort, and successfully have developed can practical application three-way catalyst, in this kind of catalysis
In the presence of agent, tri- kinds of pollutants of HC, CO and NOx can reach while eliminate.But in production application process aspect, also deposit
Many the problem of.The active component of three-way catalyst is the noble metal such as Pt, Pd, Rh, uniformity (your gold of active component load
Belong to the uniformity and adequacy combined with catalyst converter) directly affect catalytic performance.Coating paste uniformity (is mixed with noble metal component
The uniformity of conjunction) it is a big problem, slurry is uneven, layering, precipitation easily occurs, causes the endless congruence of precious metal adsorption to be asked
Topic.How noble metal active component is uniformly effectively loaded on carrier material, it is mesh to make active component obtain efficiently utilizing
The part updated is needed in preceding production technology.
The content of the invention
It is an object of the invention to overcome the defect of prior art, and provide a kind of rational in infrastructure, tail gas can be effectively realized
The addition mixing of noble metal component in catalyst for purifying coating slurry, it can ensure that the distribution of the component such as noble metal is equal in the slurry of acquisition
Adding set even, stability is good.
To achieve these goals, the present invention uses following technical scheme：
A kind of motor vehicle vent gas purification catalysis device noble metal component high dispersive adding set, including platen, described platen
Two pairs of foot stools for being used for supporting platen are provided with, described foot stool includes two foot levers, and described platen is provided with some run through
The funnel positioning hole of platen plate face, described funnel positioning hole is interior to be provided with separatory funnel, and separatory funnel is provided with liquid separatnig valve, described
Platen below be provided with scattered revolving sleeve, described scattered revolving sleeve includes stack shell, bucket bottom, top cover, and described top cover is provided with
Charging aperture, towards charging aperture, bucket bottom is provided with drainage conduit in the dropping liquid direction of separatory funnel, and drainage conduit is provided with baiting valve.
When adding noble metal in the slurry, each separatory funnel is put into each funnel positioning hole on platen, by required for
The precious metal solution of addition is added in separatory funnel, and separatory funnel valve is beaten to half-open position, carries out solution addition, and side is added dropwise,
Side is stirred in charging basket.After precious metal solution drips in separatory funnel, the water of 1/3 volume is added into funnel, cleans hopper walls
On precious metal solution, then open valve, by cleaning fluid drop to stirring charging basket in.Cleaning process repeats 2-3 times.Whole process
In, adding speed is more gentle, and adds while stir, thus can realize and preferably merge, and is entered using each separatory funnel
The addition of the different precious metal solutions of row, carries out " titration " together, and for common unified addition, dispersion effect good will obtain
It is more.
Preferably, described foot lever bottom is provided with wheel group, described wheel group includes wheel carrier, universal on wheel carrier
Wheel.Platen can move, convenient regulation and displacement.
Preferably, described scattered revolving sleeve is a cylinder, described scattered revolving sleeve is provided with stirring body, described
Stirring body includes vertical agitating shaft, some stirring plate leafs being located on agitating shaft, and described stirring plate leaf is in stack shell, stirred
Mix axle axis to overlap with stack shell axis, described agitating shaft is driven by a stirring motor.Motor driven agitating shaft (can also pass through
The structures such as reductor drive) rotate, agitating shaft drives stirring plate leaf to rotate, quick continuous so as to be carried out to the raw material in batching kettle
Agitation, compared to manual agitation, the uniformity of composition in pulping efficiency and slurry can be lifted.
Preferably, also including a fixed frame, stack shell is rotatablely connected with fixed frame, and the center of rotation of stack shell is stack shell
Axis, described stack shell lower section are provided with one and are used to drive the main motor that stack shell rotates around stack shell axis, and main motor passes through reductor
A bottom is connected to, is provided with least four blocks of arc plates in described stack shell, arc plate outer surface can be bonded with stack shell interior sidewall surface, each arc
Plate uniform annular distribution centered on stack shell axis, the space between adjacent arcs plate are side material passing passage, on described arc plate
Provided with some sideslip bars, sideslip bar is connected through stack shell side wall and with stack shell side walls, and described sideslip bar outer end is in cylinder
Outside body, sideslip bar outer end is provided with pressing plate, and pressing plate is provided with balancing weight, and some arm-tie springs, arm-tie are provided between pressing plate and stack shell
Spring one end connects pressing plate, arm-tie spring other end connection stack shell outer side surface.Stack shell can rotate, and agitating shaft can also turn
It is dynamic, certainly, in practical operation, preferably allow stack shell and agitating shaft to reversely rotate, if rotating Vortex, velocity of rotation otherwise it is same,
Otherwise just into " geo-stationary ".It is known that this kind of cylindrical container of scattered revolving sleeve, is carrying out the mistake of slurry mixing
Cheng Zhong, adherent slurry be not easy to be stirred (first in practice stirring structure be difficult accomplish it is adherent because have scrape wall,
The negative effects such as aggravation vibrations, and the accuracy of manufacture requires too high；There is centrifugal action when second stirring, quality is larger in slurry
Solid, particle are easily adherent, so it is difficult to ensure that being thoroughly mixed into slurry).Furthermore easily there is upper lower leaf and precipitation etc. to ask
Topic, also it is unfavorable for ensureing that slurry uniformly mixes.And in this programme, there is arc harden structure, arc plate outer surface can with stack shell
Side wall is bonded, and under off working state, has surplus between arc plate and stack shell interior sidewall surface, now arm-tie spring is not also stretched.
When operating (during stirring), as stack shell rotating speed is lifted, under the influence of centrifugal force, balancing weight is displaced outwardly distance and becomes big (this
When arm-tie spring elongation), drive arc plate close and be gradually labelled to stack shell interior sidewall surface, so as to by the slurry at adherent place to arc plate
Upper and lower, both sides extrusion, comes back to stack shell center.And to the interior movement again of arc plate, it is only necessary to main motor is stopped, or
Frequency control (reduction of speed), then under the return action of arm-tie spring, arc plate will move in case.And in actual whipping process
In, stirring body stirs always, and in the presence of stirring body, internal slurry is displaced outwardly (towards stack shell side wall), and main motor can
Repeatedly to accelerate, slow down, or repeatedly start, stop, when under acceleration, arc plate promote the slurry at adherent place to arc plate it is upper and lower, two
Side is extruded, and the slurry extruded upwards moves equivalent to from the bottom to top, it is achieved thereby that the effect that will be turned on the slurry of bottom, can be solved
The certainly upper lower leaf of slurry and components precipitate problem, the slurry extruded to both sides, impacting remaining adherent slurry, (such as arc plate pastes
During wall, the adherent slurry in the material passing passage of space Nei Ji sides between adjacent arcs plate, adherent slurry is allowed to be mixed into again in stack shell
The heart, stirring is re-started, therefore can ensure that slurry (and noble metal component) has high uniformity.
Preferably, described stirring motor is in above stack shell, cylinder bottom is provided with inside groove, is provided with inside groove same with stack shell
The base bearing of axle, base bearing are connected with agitating shaft.
Preferably, described stack shell is provided with some airtight and watertight padding blocks, described airtight and watertight padding block and sideslip bar are one by one
It is corresponding, it is slidingly sealed cooperation between described airtight and watertight padding block and corresponding sideslip bar.
Preferably, described cylinder bottom is horizontal, it is slidably matched between described arc plate lower surface and cylinder bottom inner surface, it is described
Arc plate be provided with some lower charging holes through arc plate plate face, be provided with feed check valve in described lower charging hole, enter material list
To valve can by direction be close to agitating shaft to away from stirring direction of principal axis, lower charging hole axis horizontal, it is lower charging axially bored line with
The distance at cylinder bottom is less than 1/10th of arc plate height.The height of described arc plate is less than 2/3rds of stack shell height, arc plate
Height be more than stack shell height half.It is slidably matched between arc plate lower surface and bottom inner surface, it is meant that arc plate lower surface
Between the inner surface of bottom will not (or being not easy) punishment in advance, and the distance of axis and bottom be less than arc plate height 1/10th charging
Hole, then it ensure that the slurry at stack shell center can enter from below and (pass through feed check valve) between arc plate and stack shell.So when
During arc plate internal pressure, the slurry of stack shell bottom enters between arc plate and stack shell, the slurry at stack shell center also some from side mistake
Expect that passage, arc plate top enter between arc plate and stack shell, and during moving and (being moved towards stack shell side wall) outside arc plate, under arc plate
Fang Buhui discharges, and slurry can only be extruded from arc plate side and top, has both impacted the adherent slurry of side, and by the advance of a part
The bottom slurry entered is extruded upwards, is returned to above stack shell, center, is then stirred body again and is stirred, and mixing effect is excellent,
Can also effectively solve the layering of slurry, precipitation, it is adherent irregular the problems such as.
The beneficial effects of the invention are as follows：It is rational in infrastructure, can fast and effeciently realize exhaust purification catalytic device coating slurry with
The fusion of noble metal component, dispersion effect is good in the slurry for noble metal, can ensure that the component such as noble metal is distributed in the slurry of acquisition
Uniformly, stability is good.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is platen of the present invention, the structural representation at foot stool；
Fig. 3 is platen of the present invention, the side view at foot stool；
Fig. 4 is the top view of platen of the present invention；
Fig. 5 is the internal structure schematic diagram of the scattered revolving sleeve of the present invention；
Fig. 6 is pressing plate of the present invention, the structural representation at balancing weight；
Fig. 7 is the structural representation at feed check valve of the present invention.
In figure：Platen 1, foot stool 2, foot lever 3, funnel positioning hole 4, separatory funnel 5, scattered revolving sleeve 6, stack shell 7, bucket bottom 8,
Top cover 9, drainage conduit 10, baiting valve 11, wheel group 12, wheel carrier 13, universal wheel 14, agitating shaft 15, stirring plate leaf 16, stirring motor
17th, main motor 18, reductor 19, arc plate 20, sideslip bar 21, pressing plate 22, balancing weight 23, arm-tie spring 24, base bearing 25, sealing
Filling block 26, feed check valve 27.
Embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
In embodiment as shown in Figures 1 to 7, a kind of motor vehicle vent gas purification catalysis device noble metal component high dispersive addition
Device, including platen 1, described platen are provided with two pairs of foot stools 2 for being used for supporting platen, and described foot stool includes two foot levers
3, described platen is provided with some funnel positioning holes 4 through platen plate face, and being provided with liquid separation in described funnel positioning hole leaks
Bucket 5, separatory funnel are provided with liquid separatnig valve, scattered revolving sleeve 6 are provided with below described platen, and described scattered revolving sleeve includes cylinder
Body 7, bucket bottom 8, top cover 9, described top cover are provided with charging aperture, and the dropping liquid direction of separatory funnel is provided with towards charging aperture, bucket bottom
Drainage conduit 10, drainage conduit are provided with baiting valve 11.
When adding noble metal in the slurry, each separatory funnel is put into each funnel positioning hole on platen, by required for
The precious metal solution of addition is added in separatory funnel, and separatory funnel valve is beaten to half-open position, carries out solution addition, and side is added dropwise,
Side is stirred in charging basket.After precious metal solution drips in separatory funnel, the water of 1/3 volume is added into funnel, cleans hopper walls
On precious metal solution, then open valve, by cleaning fluid drop to stirring charging basket in.Cleaning process repeats 2-3 times.Whole process
In, adding speed is more gentle, and adds while stir, thus can realize and preferably merge, and is entered using each separatory funnel
The addition of the different precious metal solutions of row, carries out " titration " together, and for common unified addition, dispersion effect good will obtain
It is more.
Preferably, described foot lever bottom is provided with wheel group 12, described wheel group includes wheel carrier 13, ten thousand on wheel carrier
To wheel 14.Platen can move, convenient regulation and displacement.
Preferably, described scattered revolving sleeve is a cylinder, described scattered revolving sleeve is provided with stirring body, described
Stirring body includes vertical agitating shaft 15, some stirring plate leafs 16 being located on agitating shaft, and described stirring plate leaf is in stack shell
Interior, agitating shaft axis is overlapped with stack shell axis, and described agitating shaft is driven by a stirring motor 17.Motor driven agitating shaft (
Can be driven by structures such as reductors) rotate, agitating shaft drives stirring plate leaf to rotate, so as to be carried out to the raw material in batching kettle
Quick continuous agitation, compared to manual agitation, the uniformity of composition in pulping efficiency and slurry can be lifted.
Preferably, also including a fixed frame, stack shell is rotatablely connected with fixed frame, and the center of rotation of stack shell is stack shell
Axis, described stack shell lower section are provided with one and are used to drive the main motor 18 that stack shell rotates around stack shell axis, and main motor passes through deceleration
Machine 19 is connected to a bottom, is provided with least four blocks of arc plates 20 in described stack shell, arc plate outer surface can paste with stack shell interior sidewall surface
Close, each arc plate uniform annular distribution centered on stack shell axis, the space between adjacent arcs plate is side material passing passage, described
Arc plate is provided with some sideslip bars 21, and sideslip bar is connected through stack shell side wall and with stack shell side walls, outside described sideslip bar
End is in outside stack shell, and sideslip bar outer end is provided with pressing plate 22, and pressing plate is provided with balancing weight 23, if being provided with dry drawing between pressing plate and stack shell
Flat spring 24, arm-tie spring one end connection pressing plate, arm-tie spring other end connection stack shell outer side surface.Stack shell can rotate, and stir
Mixing axle can also rotate, and certainly, in practical operation, preferably allow stack shell and agitating shaft to reversely rotate, if rotating Vortex, rotate
Speed however it is same, otherwise just into " geo-stationary ".It is known that this kind of cylindrical container of scattered revolving sleeve, is being carried out
During slurry mixes, adherent slurry be not easy to be stirred (first in practice stirring structure be difficult accomplish it is adherent, because
The negative effects such as wall, aggravation vibrations are scraped to have, and the accuracy of manufacture requires too high；There is centrifugal action, slurry when second stirring
The larger solid of middle quality, particle are easily adherent, so it is difficult to ensure that being thoroughly mixed into slurry).Furthermore easily there is upper lower leaf
And the problems such as precipitation, also it is unfavorable for ensureing that slurry uniformly mixes.And in this programme, there is arc harden structure, arc plate outer surface
It can be bonded with stack shell interior sidewall surface, under off working state, have surplus between arc plate and stack shell interior sidewall surface, now arm-tie spring
It is not stretched.When operating (during stirring), with stack shell rotating speed lifted, under the influence of centrifugal force, balancing weight be displaced outwardly away from
From big (now arm-tie spring elongation) is become, drive arc plate close and be gradually labelled to stack shell interior sidewall surface, so as to by adherent place
Slurry comes back to stack shell center to arc plate is upper and lower, both sides are extruded.And to the interior movement again of arc plate, it is only necessary to by main motor
Stop, or frequency control (reduction of speed), then under the return action of arm-tie spring, arc plate will move in case.And in reality
In whipping process, stirring body is stirred always, and in the presence of stirring body, internal slurry is displaced outwardly (towards stack shell side wall), and
Main motor can repeatedly accelerate, slow down, or repeatedly starts, stops, and when under acceleration, arc plate promotes the slurry at adherent place to arc plate
Upper and lower, both sides extrusion, the slurry extruded upwards moves equivalent to from the bottom to top, it is achieved thereby that the effect that will be turned on the slurry of bottom
Fruit, can solve the problems, such as the upper lower leaf of slurry and components precipitate, the slurry extruded to both sides, remaining adherent slurry can be impacted
(when such as arc plate is adherent, the adherent slurry in the material passing passage of space Nei Ji sides between adjacent arcs plate, adherent slurry is allowed to mix again
Enter stack shell center, re-start stirring, therefore can ensure that slurry (and noble metal component) has high uniformity.
Preferably, described stirring motor is in above stack shell, cylinder bottom is provided with inside groove, is provided with inside groove same with stack shell
The base bearing 25 of axle, base bearing are connected with agitating shaft.
Preferably, described stack shell is provided with some airtight and watertight padding blocks 26, described airtight and watertight padding block and sideslip bar one
One correspondence, cooperation is slidingly sealed between described airtight and watertight padding block and corresponding sideslip bar.
Preferably, described cylinder bottom is horizontal, it is slidably matched between described arc plate lower surface and cylinder bottom inner surface, it is described
Arc plate be provided with some lower charging holes through arc plate plate face, be provided with feed check valve 27 in described lower charging hole, feed
Check valve can be to away from stirring direction of principal axis, lower charging hole axis horizontal, lower charging axially bored line by direction close to agitating shaft
It is less than 1/10th of arc plate height with the distance at cylinder bottom.The height of described arc plate is less than 2/3rds of stack shell height, arc
The height of plate is more than the half of stack shell height.It is slidably matched between arc plate lower surface and bottom inner surface, it is meant that arc plate following table
Between face and bottom inner surface will not (or being not easy) punishment in advance, and the distance of axis and bottom is less than arc plate height 1/10th and entered
Expect hole, then ensure that the slurry at stack shell center can enter from below and (pass through feed check valve) between arc plate and stack shell.So
When arc plate internal pressure, the slurry of stack shell bottom enters between arc plate and stack shell, the slurry at stack shell center also some from side
Enter above material passing passage, arc plate between arc plate and stack shell, and during moving and (being moved towards stack shell side wall) outside arc plate, arc plate
Lower section will not discharge, and slurry can only be extruded from arc plate side and top, both impact the adherent slurry of side, and by before a part
The bottom slurry of entrance is extruded upwards, is returned to above stack shell, center, is then stirred body again and is stirred, on mixing effect
It is good, moreover it is possible to effectively solve the layering of slurry, precipitation, it is adherent irregular the problems such as.
During work, it can follow the steps below：
Deionized water is added in certain density precious metal solution, dilutes 1~50 times, regulation pH value ＜ 1.0；It is described
Precious metal solution is one or both of palladium nitrate, rhodium nitrate.The mass concentration of the precious metal solution is 13%~18%.
Deionized water is added to complex rare-earth oxidate containing valuable metal with binding agent, being ground after stirring with sand mill.Coating
The granularity of slurries is 5~15 μm.Stirring.Cerium, the mol ratio of zirconium are 1 in described complex rare-earth oxidate containing valuable metal:5~1:1, La adds
Dosage is calculated as 3%~5% in the form of an oxide, and one or both of Pr, Nd addition is calculated as 3% in the form of an oxide~
5%.Described binding agent is the mixture of one or both of boehmite, aluminum nitrate.
Noble metal dispersion device car is pushed into 1.2 before the barrel of slurry, regulation limiting lock fix support frame height and
Position.The precious metal solution diluted in 1.1 is added in separatory funnel, separatory funnel valve is beaten to half-open position, carried out molten
Drop adds, and side is added dropwise, and side is stirred in charging basket.
After precious metal solution drips in separatory funnel, the water of 1/3 volume is added into funnel, is cleaned expensive on hopper walls
Metallic solution, valve is then opened, cleaning fluid is dropped in stirring charging basket.Cleaning process repeats 2-3 times.
After precious metal solution drips, continue 8~10h of stirring.The addition of noble metal is 0.5~2.0g/L.
Can also be according to following the steps below：
Deionized water is added in certain density precious metal solution, dilutes 1~50 times, regulation pH value ＜ 1.0；It is described
Precious metal solution is one or both of palladium nitrate, rhodium nitrate.The mass concentration of the precious metal solution is 13%~18%.
Deionized water is added in complex rare-earth oxidate containing valuable metal, modified aluminas and binding agent, with sand milling after stirring
Machine is ground.The granularity of coating slurry is 5~15 μm.Stirring.Cerium, the mol ratio of zirconium are 1 in described complex rare-earth oxidate containing valuable metal:5
~1:1, La addition is calculated as 3%~5% in the form of an oxide, and one or both of Pr, Nd addition are with oxide
Form is calculated as 3%~5%.Described modified aluminas is the γ-Al that La is modified2O3, using lanthana and modified aluminas ball milling
Method mechanical mixture is made, and La addition is calculated as 2%~8% in the form of an oxide.Described binding agent is boehmite, nitre
The mixture of one or both of sour aluminium.
Noble metal dispersion device car is pushed into 2.2 before the barrel of slurry, regulation limiting lock fix support frame height and
Position.The precious metal solution diluted in 2.1 is added in separatory funnel, separatory funnel valve is beaten to half-open position, carried out molten
Drop adds, and side is added dropwise, and side is stirred in charging basket.
After precious metal solution drips in separatory funnel, the water of 1/3 volume is added into funnel, is cleaned expensive on hopper walls
Metallic solution, valve is then opened, cleaning fluid is dropped in stirring charging basket.Cleaning process repeats 2-3 times.
After precious metal solution drips, continue 8~10h of stirring.The addition of noble metal is 0.5~3.0g/L.
Claims (5)
1. a kind of motor vehicle vent gas purification catalysis device noble metal component high dispersive adding set, it is characterized in that, including platen, it is described
Platen be provided with two pairs of foot stools for being used for supporting platen, described foot stool includes two foot levers, if described platen provided with
The dry funnel positioning hole through platen plate face, described funnel positioning hole is interior to be provided with separatory funnel, and separatory funnel is provided with liquid separation
Valve, described platen lower section are provided with scattered revolving sleeve, and described scattered revolving sleeve includes stack shell, bucket bottom, top cover, described top cover
Charging aperture is provided with, towards charging aperture, bucket bottom is provided with drainage conduit in the dropping liquid direction of separatory funnel, and drainage conduit is provided with baiting valve；
Described scattered revolving sleeve is a cylinder, and described scattered revolving sleeve is provided with stirring body, and described stirring body includes vertical
Agitating shaft, some stirring plate leafs being located on agitating shaft, described stirring plate leaf are in stack shell, agitating shaft axis and stack shell axle
Line is overlapped, and described agitating shaft is driven by a stirring motor；Also including a fixed frame, stack shell is rotatablely connected with fixed frame,
The center of rotation of stack shell is stack shell axis, and one is provided with below described stack shell and is used to drive the main electricity that stack shell rotates around stack shell axis
Machine, main motor are connected to a bottom by reductor, are provided with least four blocks of arc plates in described stack shell, arc plate outer surface can be with cylinder
Body interior sidewall surface is bonded, each arc plate uniform annular distribution centered on stack shell axis, and the space between adjacent arcs plate is side mistake
Expect passage, described arc plate is provided with some sideslip bars, and sideslip bar is connected through stack shell side wall and with stack shell side walls, described
Sideslip bar outer end be in outside stack shell, sideslip bar outer end is provided with pressing plate, and pressing plate is provided with balancing weight, is provided between pressing plate and stack shell
Some arm-tie springs, arm-tie spring one end connection pressing plate, arm-tie spring other end connection stack shell outer side surface；Described foot lever bottom
End is provided with wheel group, and described wheel group includes wheel carrier, the universal wheel on wheel carrier.
2. a kind of motor vehicle vent gas purification catalysis device noble metal component high dispersive adding set according to claim 1, its
It is characterized in, described stirring motor is in above stack shell, and cylinder bottom is provided with inside groove, the lower shaft coaxial with stack shell is provided with inside groove
Hold, base bearing is connected with agitating shaft.
3. a kind of motor vehicle vent gas purification catalysis device noble metal component high dispersive adding set according to claim 1, its
It is characterized in, described stack shell is provided with some airtight and watertight padding blocks, and described airtight and watertight padding block corresponds with sideslip bar, described
Cooperation is slidingly sealed between airtight and watertight padding block and corresponding sideslip bar.
4. a kind of motor vehicle vent gas purification catalysis device noble metal component high dispersive adding set according to claim 1 or 2,
It is characterized in that described cylinder bottom is horizontal, it is slidably matched between described arc plate lower surface and cylinder bottom inner surface, on described arc plate
Provided with some lower charging holes through arc plate plate face, be provided with feed check valve in described lower charging hole, feed check valve can
Be the lower charging hole axis horizontal to away from stirring direction of principal axis close to agitating shaft by direction, lower charging axially bored line and cylinder bottom away from
From 1/10th less than arc plate height.
5. a kind of motor vehicle vent gas purification catalysis device noble metal component high dispersive adding set according to claim 4, its
It is characterized in, the height of described arc plate is less than 2/3rds of stack shell height, and the height of arc plate is more than the half of stack shell height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510817231.6A CN105498616B (en) | 2015-11-23 | 2015-11-23 | A kind of motor vehicle vent gas purification catalysis device noble metal component high dispersive adding set |
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| CN104511251A (en) * | 2013-09-30 | 2015-04-15 | 何光辉 | Stainless steel charging locomotive |
| CN104923109A (en) * | 2015-07-03 | 2015-09-23 | 无锡市稼宝药业有限公司 | Reinforcing electric normal stirrer |
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| CN204735150U (en) * | 2015-05-22 | 2015-11-04 | 田丽华 | Chemical material agitator |
| CN205182745U (en) * | 2015-11-23 | 2016-04-27 | 浙江达峰汽车技术有限公司 | Tail -gas clean -up catalyst converter thick liquids active component adds device |
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| JP2654909B2 (en) * | 1993-09-28 | 1997-09-17 | 東レ・ダウコーニング・シリコーン株式会社 | Method and apparatus for discharging high viscosity liquid material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511251A (en) * | 2013-09-30 | 2015-04-15 | 何光辉 | Stainless steel charging locomotive |
| CN204685025U (en) * | 2015-04-24 | 2015-10-07 | 高化富 | A kind of novel liquid pharmaceutical mixing arrangement |
| CN204735150U (en) * | 2015-05-22 | 2015-11-04 | 田丽华 | Chemical material agitator |
| CN104923109A (en) * | 2015-07-03 | 2015-09-23 | 无锡市稼宝药业有限公司 | Reinforcing electric normal stirrer |
| CN205182745U (en) * | 2015-11-23 | 2016-04-27 | 浙江达峰汽车技术有限公司 | Tail -gas clean -up catalyst converter thick liquids active component adds device |
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