CN110354912A - Catalytic type ceramic fibre chimney filter production line and production technology - Google Patents
Catalytic type ceramic fibre chimney filter production line and production technology Download PDFInfo
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- CN110354912A CN110354912A CN201910730815.8A CN201910730815A CN110354912A CN 110354912 A CN110354912 A CN 110354912A CN 201910730815 A CN201910730815 A CN 201910730815A CN 110354912 A CN110354912 A CN 110354912A
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- 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
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- B01D—SEPARATION
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- B01D53/34—Chemical or biological purification of waste gases
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- B01D53/8625—Nitrogen oxides
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- 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
- B01D53/8637—Simultaneously removing sulfur oxides and nitrogen oxides
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- B01D53/34—Chemical or biological purification of waste gases
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0217—Pretreatment of the substrate before coating
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
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- B01J37/0234—Impregnation and coating simultaneously
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Abstract
This application discloses a kind of catalytic type ceramic fibre chimney filter production line and production technologies, production line includes pretreating zone, coating area, dry section and heat-treatment zone, pretreating zone, coating area, dry section and heat-treatment zone sequential, in pretreating zone, ceramic fibre chimney filter is pre-processed, and transmits pretreated ceramic fibre chimney filter to coating area；In coating area, coating catalyst slurry transmits the ceramic fibre chimney filter after coating to dry section on ceramic fibre chimney filter；In dry section, the laitance on ceramic fibre chimney filter and fixed catalyst slurries are removed on ceramic fibre chimney filter, to obtain wet catalysis type ceramic fibre chimney filter, wet catalysis type ceramic fibre chimney filter is sent to heat-treatment zone；In heat-treatment zone, thermal activation is carried out to wet catalysis type ceramic fibre chimney filter, to obtain catalytic type ceramic fibre chimney filter.There is good the degree of automation and integration degree by the catalytic type ceramic fibre chimney filter production line of the application.
Description
Technical field
The technical field manufactured this application involves ceramic fibre chimney filter more particularly to a kind of filter of catalytic type ceramic fibre
Pipe production line and production technology.
Background technique
Under national environmental protection regulation is increasingly stringent and the guidance of energy saving policy, the innovation of atmosphere pollution Treatment process is sent out
It is imperative to open up.However, it is de- for high temperature to administer the technology relied primarily on to flue dust, SOx and tri- great tradition atmosphere pollution of NOx
Nitre-desulfurization-low temperature dedusting is deposited although the technology is able to achieve country's limit row's standard of current most stringent of flue dust, SOx and NOx
Technological design it is complicated, take up a large area, energy loss is big and by chemical attack it is serious the problems such as.
Last decade, more and more attention has been paid to due to ceramic fine for application of the import ceramic fibre chimney filter in high-temperature dust removal field
Tieing up chimney filter has that efficiency of dust collection is good, intensity is high, high temperature resistant and impact, corrosion resistance is strong, regeneration effect is good and long service life
The features such as, cloth bag can be replaced to realize high-temperature dust removal completely.However existing ceramic fiber tube is applicable only to dedusting, for place
Reason atmosphere pollution still lacks denitration, desulfurization, the ability except VOCs.
Summary of the invention
The embodiment of the present application provides the production line and production technology of a kind of catalytic type ceramic fibre chimney filter, solves ceramics at present
Fiber chimney filter lacks denitration, desulfurization, removes the problem of VOCs ability.
In order to solve the above-mentioned technical problem, the application is achieved in that
In a first aspect, providing a kind of catalytic type ceramic fibre chimney filter production line comprising pretreating zone, is done at coating area
Dry area and heat-treatment zone, pretreating zone, coating area, dry section and heat-treatment zone sequential, in pretreating zone, to ceramic fine
Dimension chimney filter is pre-processed, and transmits pretreated ceramic fibre chimney filter to coating area；In coating area, catalyst is coated
Slurries transmit the ceramic fibre chimney filter after coating to dry section on ceramic fibre chimney filter；In dry section, removal ceramics
Laitance and fixed catalyst slurries on fiber chimney filter is on ceramic fibre chimney filter, to obtain the filter of wet catalysis type ceramic fibre
Pipe, wet catalysis type ceramic fibre chimney filter are sent to heat-treatment zone；In heat-treatment zone, wet catalysis type ceramic fibre chimney filter is carried out
Thermal activation, to obtain catalytic type ceramic fibre chimney filter.
In one embodiment of the application, catalytic type ceramic fibre chimney filter production line further includes inspection area and discharge zone, is urged
Change type ceramic fibre chimney filter is sent to inspection area from heat-treatment zone, in inspection area, examines to catalytic type ceramic fibre chimney filter
It tests, the catalytic type ceramic fibre chimney filter after inspection separates qualified catalytic type ceramic fibre chimney filter according to inspection result, qualified
Catalytic type ceramic fibre chimney filter is sent to discharge zone from inspection area, in discharge zone, to qualified catalytic type ceramic fibre chimney filter
It is packed.
In one embodiment of the application, it is provided with transmitting device, verifying attachment and Weighing apparatus in inspection area, transmits
Device transports catalytic type ceramic fibre chimney filter, and verifying attachment measures the physical property of catalytic type ceramic fibre chimney filter, Weighing apparatus
Measure the weight of catalytic type ceramic fibre chimney filter.
In one embodiment of the application, it is provided with transmitting device, dust-extraction unit and Weighing apparatus in pretreating zone, passes
Defeated device transports ceramic fibre chimney filter, and dust-extraction unit removes the floating dust on ceramic fibre chimney filter, after Weighing apparatus measures dedusting
The initial weight of ceramic fibre chimney filter.
In one embodiment of the application, dust-extraction unit is provided in compressed gas to ceramic fibre chimney filter, to blow down ceramics
Floating dust on fiber chimney filter.The pressure of compressed gas is between 0.5MPa and 2MPa.
In one embodiment of the application, transmitting device, catalyst preparation device and coating dress are provided in coating area
It sets, transmitting device transports ceramic fibre chimney filter, and catalyst preparation device prepares catalyst slurry, and coating unit coats catalyst slurry
Liquid is in ceramic fibre chimney filter.
In one embodiment of the application, catalyst preparation device includes reaction kettle and acid and alkali-resistance liquid delivery pump, reaction
Kettle accommodates catalyst slurry, and acid and alkali-resistance liquid delivery pump is connect with reaction kettle, and acid and alkali-resistance liquid delivery pump conveys catalyst slurry
To coating unit.
In one embodiment of the application, transmitting device and blowning installation are provided in dry section, transmitting device transports
Ceramic fibre chimney filter after coating, blowning installation remove the laitance on ceramic fibre chimney filter by hot compressed air, and fixed
Catalyst slurry is on ceramic fibre chimney filter, to obtain wet catalysis type ceramic fibre chimney filter.The pressure of compressed gas is 0.5MPa
Between 2MPa.
In one embodiment of the application, it is provided with transmitting device, drying device and calciner plant in heat-treatment zone, passes
Defeated device transports wet catalysis type ceramic fibre chimney filter, and drying device dehydrates wet catalysis type ceramic fibre chimney filter, forges
Device is burnt to calcine the catalytic type ceramic fibre chimney filter after dehydrating.
Second aspect provides a kind of production technology of catalytic type ceramic fibre chimney filter, uses the catalysis such as first aspect
Type ceramic fibre chimney filter production line is produced comprising:
Pre-process ceramic fibre chimney filter；
Catalyst slurry is coated on ceramic fibre chimney filter；
The laitance of ceramic fibre chimney filter and fixed catalyst slurries are removed on ceramic fibre chimney filter, to obtain
Wet catalysis type ceramic fibre chimney filter；
Thermal activation wet catalysis type ceramic fibre chimney filter, to obtain catalytic type ceramic fiber tube.
In one embodiment of the application, pre-process ceramic fibre chimney filter the step of include: removal ceramic fibre chimney filter on
Floating dust；The initial weight of ceramic fibre chimney filter after measuring dedusting.
In one embodiment of the application, catalyst slurry is coated before the step on ceramic fibre chimney filter, preparation is urged
Agent slurries.
In one embodiment of the application, the step of preparing catalyst slurry includes: mixed catalyst and template, to obtain
Obtain mixed serum；Soda acid regulator is added in mixed serum, adjusts the pH value of mixed serum；Mixed catalyst, template and acid
Alkali regulator, to obtain catalyst slurry.
In one embodiment of the application, catalyst is in vanadium base, manganese base, iron-based, noble metal or rare earth catalyst
It is at least one.
In one embodiment of the application, template is selected from sodium carboxymethylcellulose (CMC), cetyl trimethyl bromination
At least one of ammonium (CTAB), polyethylene glycol oxide (PEO) and polyethylene glycol (P-123).
In one embodiment of the application, soda acid regulator is acid regulator or alkaline regulator.
In one embodiment of the application, acid regulator is selected from least one of dust technology, oxalic acid and acetic acid.
In one embodiment of the application, alkaline regulator is selected from ammonium hydroxide, monoethanolamine, diethylamine, triethylamine and morphine
At least one of quinoline.
In one embodiment of the application, catalyst solid content is between 5wt% and 40wt%.
In one embodiment of the application, the viscosity of catalyst slurry is between 50-1000mpas.
In one embodiment of the application, the granularity of catalyst slurry is less than or equal to 5 μm.
In one embodiment of the application, the step of mixed catalyst, template and soda acid regulator, is stirred by machinery
Mix or be stirred by ultrasonic mixed catalyst, template and soda acid regulator.
In one embodiment of the application, mixing time is between 10 minutes and 60 minutes.
In one embodiment of the application, coating catalyst slurry is applied in the step on ceramic fibre chimney filter by dipping
It covers, positive pressurisation coating or reversed negative pressure are coated.
In one embodiment of the application, coating time is between 1 minute and 60 minutes.
In one embodiment of the application, pressure is coated between 0MPa and 8MPa.
In one embodiment of the application, removes the laitance of ceramic fibre chimney filter and fixed catalyst slurries are in ceramic fine
The step tieed up on chimney filter is carried out by hot compressed air.
In one embodiment of the application, the temperature of hot compressed air is between 60 degrees Celsius and 80 degrees Celsius.
In one embodiment of the application, the pressure of hot compressed air is between 0.5MPa and 2MPa.
In one embodiment of the application, the step of thermal activation wet catalysis type ceramic fibre chimney filter includes: to wet catalysis type
Ceramic fibre chimney filter is dehydrated；Catalytic type ceramic fibre chimney filter after dehydration and drying is calcined.
In one embodiment of the application, drying temperature is between 120 degrees Celsius and 200 degrees Celsius.
In one embodiment of the application, drying time is between 8 hours and 24 hours.
In one embodiment of the application, calcination temperature is between 300 degrees Celsius and 450 degrees Celsius.
In one embodiment of the application, calcination time is between 4 hours and 16 hours.
In the embodiment of the present application, it can be criticized by the catalytic type ceramic fibre chimney filter production line and production technology of the application
Amount production has denitration, desulfurization, the ceramic fibre chimney filter except VOCs ability, solves current ceramic fibre chimney filter and lacks denitration desulfurization
Or do not have the problem of except removal VOCs ability.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the schematic diagram of the catalytic type ceramic fibre rate pipe production line of the application；
Fig. 2 is the flow sheet of the catalytic type ceramic fibre rate pipe of the application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiment is some embodiments of the present application, instead of all the embodiments.Based on this Shen
Please in embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall in the protection scope of this application.
Referring to Fig. 1, it is the schematic diagram of the catalytic type ceramic fibre chimney filter production line of the application；As shown, this reality
The catalytic type ceramic fibre chimney filter production line 1 for applying example includes six regions, and six regions are sequentially pretreating zone 10, coating area
11, dry section 12, heat-treatment zone 13, inspection area 14 and discharge zone 15.In this present embodiment, pretreating zone 10, coating area 11, dry
Dry area 12, heat-treatment zone 13, inspection area 14 and discharge zone 15 line up annular, to reduce the production line of catalytic type ceramic fibre chimney filter
1 length, certain pretreating zone 10, coating area 11, dry section 12, heat-treatment zone 13, inspection area 14 and discharge zone 15 can be lined up
Linear or other shapes, repeat no more in this.Pretreating zone 10, coating area 11, dry section 12, heat-treatment zone 13, inspection area 14
Be provided with transmitting device in discharge zone 15, transmitting device to grab, the transmission ceramic fibre filter of suspending way and/or conveyer belt
Pipe, so that ceramic fibre chimney filter carries out various processing, transmitting device can move for electric block, bridge crane, manipulator, track
Dynamic formula cantilever and/or conveyer belt.
Pretreating zone 10 pre-processes ceramic fibre chimney filter, pretreatment include ceramic fibre chimney filter is dusted and
Weight measurement is carried out to the ceramic fibre chimney filter after dedusting, so it is provided with dust-extraction unit and Weighing apparatus in pretreating zone 10,
Dust-extraction unit is dusted ceramic fibre chimney filter, and dedusting method can be to the air blowing of ceramic fibre chimney filter or air-breathing to blow down or inhale
Except the floating dust being located on ceramic fibre chimney filter, or is wiped by dust removal paper and floating on ceramic fibre chimney filter is located at Electrostatic Absorption
Dirt, or the floating dust by hairbrush cleaning on ceramic fibre chimney filter.Weighing apparatus to the ceramic fibre chimney filter after dedusting into
Row weight measurement, to obtain the initial weight of ceramic fibre chimney filter.Above-mentioned dust-extraction unit is located at ceramics using blowing method removal
Floating dust on fiber chimney filter, dust-extraction unit are to provide in compressed gas to ceramic fibre chimney filter, are located at ceramic fibre with removal and filter
Floating dust on pipe, wherein compressed gas has the function of the oil removing that dehumidifies, and the pressure of compressed gas is between 0.5MPa and 2MPa.Scale
Refitting is set using the steelyard hung on transmitting device or the balance for being attached to transmitting device, and range is 1 kilogram and 10000
Between kilogram, precision is between -1 kilogram and 1 kilogram.
Catalyst slurry is coated on ceramic fibre chimney filter by coating area 11, and catalyst preparation dress is provided in coating area 11
It sets and coating unit, catalyst preparation device is filled to prepare the catalyst slurry on ceramic fibre chimney filter to be coated on, coating
It sets catalyst to be coated on ceramic fibre chimney filter, is carried on catalyst on ceramic fibre chimney filter.Catalyst preparation dress
Set reaction kettle and acid and alkali-resistance liquid delivery pump including having heating, mechanical stirring and/or ultrasonic agitation function, reaction kettle accommodating
Catalyst slurry, acid and alkali-resistance liquid delivery pump are connect with reaction kettle, and convey catalyst slurry to coating unit.Wherein react
The material of kettle is glass or stainless steel.The coating method of coating unit is that immersion coating, positive pressurisation coating or reversed negative pressure apply
It covers.
Dry section 12 is used to remove catalyst and fixed catalyst extra on the ceramic fibre chimney filter after coating in ceramics
On fiber chimney filter.Dry section 12 is provided with blowning installation, and blowning installation blowing load has more on the ceramic fibre chimney filter of catalyst
Remaining catalyst, while keeping catalyst dry to solidify on ceramic fibre chimney filter, and then obtain the filter of wet catalysis type ceramic fibre
Pipe.Gas provided by above-mentioned blowning installation is the compressed gas of dehumidifying oil removing, and the pressure of compressed gas is 0.5MPa and 2MPa
Between.Blowning installation has heater, and heater heats compressed gas provided by blowning installation.
Heat-treatment zone 13 carries out thermal activation to wet catalysis type ceramic fibre chimney filter, and heat-treatment zone 13 is provided with, drying device
First wet catalysis type ceramic fibre chimney filter is dehydrated, calciner plant is to the catalytic type ceramic fibre chimney filter after dehydration and drying
It is calcined, to carry out thermal activation to catalytic type ceramic fibre chimney filter.Drying device and calciner plant can be separate type or one
Formula, heating method are at least one of electric heating, microwave heating, electromagnetic induction heating and infrared heating.
Inspection area 14 is used to carry out weighing and quality inspection, inspection area 14 to the catalytic type ceramic fibre chimney filter after thermal activation
It is inside provided with Weighing apparatus and verifying attachment, Weighing apparatus measures the weight of the catalytic type ceramic fibre chimney filter after thermal activation, with
Obtain the finished weight of ceramic fibre chimney filter.Verifying attachment carries out quality inspection to the catalytic type ceramic fibre chimney filter after thermal activation
Test, quality inspection include detect catalytic type ceramic fibre chimney filter appearance and physical property, and compare ceramic fibre chimney filter at
The difference of product weight and initial weight.Whether the catalytic type ceramic fibre chimney filter after judging thermal activation according to testing result is qualified
Catalytic type ceramic fibre chimney filter.Weighing apparatus uses the steelyard hung on transmitting device or the balance for being attached to transmitting device
Scale, range is between 1 kilogram and 10000 kilograms, and precision is between -1 kilogram and 1 kilogram.Verifying attachment may include tape measure
Or the measuring tools such as vernier caliper, to physical properties such as the size, the thickness that measure catalytic type ceramic fibre chimney filter.
Discharge zone 15 by qualified catalytic type ceramic fibre chimney filter from production line removal, and it is fine to qualified catalytic type ceramics
Dimension chimney filter inspection by sampling simultaneously packs delivery.Discharge zone 15 is provided with auxiliary transmission device, and auxiliary transmission device assists transmitting device
By catalytic type ceramic fibre chimney filter from production line removal.Above-mentioned inspection by sampling is carried out to qualified catalytic type ceramic fibre chimney filter
The analysis of physical and chemical performance.
A kind of catalytic type ceramic fibre chimney filter production line provided by the present application, the dust-extraction unit based on pretreating zone can be with
The floating dust on ceramic fibre chimney filter is blown down by compressed gas before coating catalyst slurry, it can be with to facilitate catalyst slurry
It is more completely coated on ceramic fibre chimney filter, effectively promotes the production yield of catalytic type ceramic fibre chimney filter.
In addition, the production line of the application obtains ceramics by the Weighing apparatus of pretreating zone and the Weighing apparatus of inspection area
Fiber chimney filter before processing after initial weight and finished weight, the knot coated based on the difference of weight come catalyst testing slurries
The drying of fruit and slurries is as a result, effectively promote the production yield of catalytic type ceramic fibre chimney filter.
In addition, the production line of the application is living to catalyst slurry heat by the drying device and calciner plant of heat-treatment zone
Change, enable catalyst stability is coated in ceramic fibre chimney filter, and with ceramic fibre chimney filter stable bond, effectively allow ceramics
Fiber chimney filter promotes the production yield of catalytic type ceramic fibre chimney filter and has the ability that denitration desulfurization removes VOCs.
Referring to Figure 2 together, be the application catalytic type ceramic fibre chimney filter flow sheet；As shown, logical
The production line 1 for crossing the catalytic type ceramic fibre chimney filter of the application produces the technique of catalytic type ceramic fibre chimney filter, first carries out step
S10, pretreatment are located at the ceramic fibre chimney filter of pretreating zone 10, wherein first sling ceramic fibre chimney filter using transmitting device,
Again with dust-extraction unit remove ceramic fibre chimney filter on floating dust, finally by Weighing apparatus to the ceramic fibre chimney filter after dedusting into
Row measurement, to obtain the initial weight of ceramic fibre chimney filter.Pretreated ceramic fibre chimney filter is sent to coating area 11.
Then step S11 is executed, on ceramic fibre chimney filter, the ceramic fibre chimney filter after coating passes coating catalyst slurry
It send to dry section 12.Before coating catalyst slurry, catalyst slurry is first prepared, catalyst slurry is in catalyst preparation device
Production first makes catalyst slurry in a kettle, and catalyst slurry includes catalyst, template and soda acid regulator,
Middle catalyst uses ammonium metavanadate, and template uses sodium carboxymethylcellulose (CMC), cetyl trimethylammonium bromide
(CTAB), at least one of polyethylene glycol oxide (PEO) and polyethylene glycol (P-123), soda acid regulator be according to catalyst and
The pH value of the slurries of template mixing selects acid regulator or alkaline regulator to adjust to the default pH value of catalyst slurry, acid
Property regulator at least one of using dust technology, oxalic acid or acetic acid, alkaline regulator using ammonium hydroxide, monoethanolamine, diethylamine,
At least one of triethylamine and morpholine.Catalyst solid content in catalyst slurry is between 5wt% and 40wt%, catalysis
Agent solid content can be 5wt%, 10wt%, 15wt%, 20wt%, 25wt%, 30wt% or 35wt%, and catalyst solid content is then
It is associated with the viscosity of catalyst slurry.The viscosity of catalyst is 50-1000mpas, and the viscosity of catalyst can also be
100mpa·s、250mpa·s、350mpa·s、400mpa·s、500mpa·s、600mpa·s、700mpa·s、
800mpas or 900mpas, viscosity and the time correlation required for stirring catalyst of catalyst join.Of its catalyst
Granularity is less than or equal to 5 μm, and the granularity of catalyst can also be 4 μm, 2 μm, 1 μm, 0.5 μm or 0.1 μm, catalyst granules
It spends then associated with the viscosity of catalyst slurry.
Preparing catalyst slurry is first mixed catalyst and template, to obtain mixed serum.It is subsequently added into soda acid adjustment
Agent adjusts the pH value of mixed serum in mixed serum.Last mixed catalyst, template and soda acid regulator, to be catalyzed
Agent slurries, wherein mixed catalyst, template and soda acid regulator are by mechanical stirring or ultrasonic agitation mixing, wherein stirring
Time, mixing time can be 20 minutes, 30 minutes, 40 minutes or 50 minutes, mixing time between 10 minutes and 60 minutes
It is associated with the solid content of catalyst, viscosity, granularity.It is transmitted in coating unit, is applied by acid and alkali-resistance liquid delivery pump again
Coating device is coated catalyst slurry to ceramic fibre chimney filter by immersion coating, positive coating or the reversed pressure coating method that covers
On.Wherein, dip time or coating time be between 1 minute and 60 minutes, dip time or coating time can be 10 minutes,
20 minutes, 30 minutes, 40 minutes or 50 minutes.Coat pressure for 0MPa and 8MPa between, coat pressure can be 1MPa,
2MPa, 3MPa, 4MPa, 5MPa, 6MPa or 7MPa, coating pressure are related to the solid content of catalyst slurry, viscosity, granularity
Connection.Final load has the ceramic fibre chimney filter of catalyst slurry to be sent to dry section 12.
Then step S12 is executed, laitance and fixed catalyst on ceramic fibre chimney filter are blown down using hot compressed air
Slurries form wet catalysis type ceramic fibre chimney filter on ceramic fibre chimney filter.Wherein, the temperature of hot compressed air is 60 degrees Celsius
Between 80 degrees Celsius, the temperature of hot compressed air can also be 65 degrees Celsius, 70 degrees Celsius or 75 degrees Celsius, hot compressed air
Temperature it is associated with the ingredient of catalyst slurry or type.The pressure of hot compressed gas is between 0.5MPa and 2MPa, hot pressing
The pressure of contracting gas can also be 1MPa, 1.5MPa, 3MPa, 4MPa or 5MPa, if hot compressed gas blowoff pressure too Qiang Huiying
The integrality for ringing just coating catalyst slurry, can not blow down extra laitance if hot compressed gas blowoff pressure is too weak.Hot pressing
For the supply time of contracting air between 1 hour and 8 hours, the supply time of hot compressed air can also be 2 hours, 3 hours, 4
Hour, 5 hours, 6 hours or 7 hours, the supply time of hot compressed air is associated with the ingredient of catalyst slurry or type, heat
If compressed gas supply will affect the integrality of just coating catalyst slurry too long, if hot compressed gas supply time deficiency nothing
Method blows down extra laitance.In this application, it can also be surveyed by ceramic fibre chimney filter of the Weighing apparatus to wet catalysis type
Amount, to obtain the intermediate weight of ceramic fibre chimney filter.Wet catalysis type ceramic fibre chimney filter is sent to heat-treatment zone 13.
Then step S13 is executed, thermal activation is carried out to wet catalysis type ceramic fibre chimney filter, wherein calciner plant is first urged wet
Change type ceramic fibre chimney filter is dehydrated.Drying temperature between 120 degrees Celsius and 200 degrees Celsius, may be used also by drying temperature
To be 130 degrees Celsius, 150 degrees Celsius, 170 degrees Celsius or 180 degrees Celsius, the ingredient or type of drying temperature and catalyst slurry
It is associated.Drying time between 8 hours and 24 hours, drying time can also be 10 hours, 12 hours, 14 hours, it is 18 small
When or 20 hours, drying time and hot compressed gas blow down the time or pressure is associated, drying time also with catalyst slurry
Ingredient or type are associated.Then the catalytic type ceramic fibre chimney filter after dehydration and drying is calcined, to catalytic type ceramics
Fiber chimney filter carries out thermal activation, to obtain catalytic type ceramic fibre chimney filter.Calcination temperature be 300 degrees Celsius with 450 degrees Celsius it
Between, calcination temperature can also be 330 degrees Celsius, 350 degrees Celsius, 370 degrees Celsius, 400 degrees Celsius or 430 degrees Celsius, calcining temperature
It spends associated with the ingredient of catalyst slurry or type.Between 4 hours and 16 hours, calcination time can also be calcination time
6 hours, 8 hours, 10 hours, 12 hours or 14 hours, calcination time was associated with the ingredient of catalyst slurry or type.Calcining
Catalytic type ceramic fibre chimney filter afterwards is sent to inspection area 14.
Then step S14 is executed, is tested to catalytic type ceramic fibre chimney filter, the catalytic type ceramic fibre filter after detection
The pipe person of complying with standard is qualified catalytic type ceramic fibre chimney filter.Wherein detection content is detection catalytic type ceramic fibre chimney filter
Appearance and physical property (apparent size and weight), detect by visual observation catalytic type ceramic fibre chimney filter appearance it is whether damaged and
Damaged degree is measured the apparent size (length, width or thickness) of catalytic type ceramic fibre chimney filter by detection device, passes through scale
The weight of measurement catalytic type ceramic fibre chimney filter is set in refitting, to obtain the finished weight of ceramic fibre chimney filter.Then by qualification
Catalytic type ceramic fibre chimney filter is sent to discharge zone 15.Finally execute step S15, to qualified catalytic type ceramic fibre chimney filter into
Row packaging delivery.
Produce catalytic type ceramic fibre chimney filter by the production line and production technology of the application, reach it is highly integrated and it is high oneself
Dynamicization degree, while reaching the various types of catalytic type ceramic fibre chimney filters of batch production.
The production line of following catalytic type ceramic fibre chimney filters for providing practical application the application produces various types of catalysis
The embodiment of type ceramic fibre chimney filter is only that the application one implements example, should not be as limit.
Embodiment 1
The present embodiment produces supported V by the production line of catalytic type ceramic fibre chimney filter2O5-WO3-TiO2Denitrating catalyst
Catalytic type ceramic fibre chimney filter, production technology is to first carry out step S10, pretreatment be located at pretreating zone 10 ceramic fibre
Chimney filter, in this present embodiment, the length of ceramic fibre chimney filter are 3 meters, are sling ceramic fibre chimney filter by transmitting device, then
The floating dust on ceramic fibre chimney filter is removed by dust-extraction unit, finally the ceramic fibre after removal floating dust is filtered using weighing device
Pipe measures, to obtain the initial weight of ceramic fibre chimney filter.Pretreated ceramic fibre chimney filter is sent to coating area 11.
Then step S11 is executed, coats catalyst slurry on ceramic fibre chimney filter.Before coating catalyst slurry, first
Catalyst slurry, catalysis used in the catalyst slurry of the present embodiment are deployed in reaction kettle by catalyst preparation device
Agent is V2O5And WO3, V2O5And WO3Mass fraction be respectively 3%-4% and 8%-10%, catalyst solid content is 25wt%,
The viscosity of catalyst is 200mpas, and granularity is 3 μm.
Template in catalyst slurry uses sodium carboxymethylcellulose (CMC) and polyethylene glycol oxide (PEO), catalyst slurry
For soda acid regulator in liquid using alkaline regulator, the alkaline regulator of the present embodiment is monoethanolamine, adjusts catalyst slurry
The pH value of liquid is to 13, and catalyst, template and soda acid regulator are by mechanical stirring and/or ultrasonic agitation mixing, wherein stirring
Time is 30 minutes.After the completion of catalyst slurry preparation, catalyst slurry is transmitted to coating by acid and alkali-resistance liquid delivery pump
In device, coating unit is coated catalyst slurry to ceramic fibre chimney filter by immersion coating, and dip time is 30 points
Clock.Ceramic fibre chimney filter after finally coating is sent to dry section 12.
Then step S12 is executed, laitance and fixed catalyst on ceramic fibre chimney filter are blown down using hot compressed air
Slurries form wet catalysis type ceramic fibre chimney filter on ceramic fibre chimney filter.Wherein the temperature of hot compressed air is 80 degrees Celsius,
The pressure of hot compressed air is 1MPa, and the supply time of hot compressed air is 4 hours.There are the wet ceramics of catalyst slurry to load
Fiber chimney filter carries out weight measurement, to obtain the weight that load has the wet ceramic fibre chimney filter of catalyst slurry.Transmit wet ceramics
Fiber chimney filter is to heat-treatment zone 13.
Then step S13 is executed, wet catalysis type ceramic fibre chimney filter is calcined, first to wet catalysis type before calcining
Ceramic fibre chimney filter is dehydrated, and drying temperature is 120 degrees Celsius, and drying time is 16 hours.Then to dry to dehydration
Catalytic type ceramic fibre chimney filter after dry is calcined, to carry out high-temperature activation, calcination temperature to catalytic type ceramic fibre chimney filter
It is 400 degrees Celsius, calcination time is 4 hours.Calcined catalytic type ceramic fibre chimney filter is sent to inspection area 14.
Then step S14 is executed, is tested to catalytic type ceramic fibre chimney filter, after inspection result judgement detection
Whether catalytic type ceramic fibre chimney filter complies with standard, and the person of complying with standard is qualified catalytic type ceramic fibre chimney filter.Wherein detect
Content is to detect the appearance and physical property (apparent size and weight) of catalytic type ceramic fibre chimney filter, by visual observation detection catalysis
Whether the appearance of type ceramic fibre chimney filter damaged and damaged degree, passes through detection device and measures the outer of catalytic type ceramic fibre chimney filter
It sees size (length, width or thickness), the weight of catalytic type ceramic fibre chimney filter is measured by Weighing apparatus.Then by qualification
Catalytic type ceramic fibre chimney filter is sent to discharge zone 15.Finally execute step S15, to qualified catalytic type ceramic fibre chimney filter into
Row packaging delivery.
Embodiment 2
The present embodiment produces load C eO by the production line of catalytic type ceramic fibre chimney filter2-WO3-TiO2Denitrating catalyst
Catalytic type ceramic fibre chimney filter, production technology is to first carry out step S10, pretreatment be located at pretreating zone 10 ceramic fibre
Chimney filter, in this present embodiment, the length of ceramic fibre chimney filter are 3 meters, are sling ceramic fibre chimney filter by transmitting device, then
The floating dust on ceramic fibre chimney filter is removed by dust-extraction unit, finally the ceramic fibre after removal floating dust is filtered using weighing device
Pipe measures, to obtain the initial weight of ceramic fibre chimney filter.Pretreated ceramic fibre chimney filter is sent to coating area 11.
Then step S11 is executed, coats catalyst slurry on ceramic fibre chimney filter.Before coating catalyst slurry, first
Catalyst slurry, catalysis used in the catalyst slurry of the present embodiment are deployed in reaction kettle by catalyst preparation device
Agent is CeO2And WO3, CeO2And WO3Mass fraction be respectively 0.5%-2% and 8%-10%, catalyst solid content is
23wt%, the viscosity of catalyst are 210mpas, and granularity is 3 μm.
Template in catalyst slurry uses sodium carboxymethylcellulose (CMC) and polyethylene glycol (P-123), catalyst slurry
For soda acid regulator in liquid using acid regulator, the acid regulator of the present embodiment is dust technology, adjusts catalyst slurry
PH value to 1, catalyst, template and soda acid regulator are stirred by stirring and ultrasonic wave, and wherein mixing time is 30
Minute.After the completion of catalyst slurry preparation, catalyst slurry is transmitted in coating unit by acid and alkali-resistance liquid delivery pump, is applied
Coating device is coated catalyst slurry to ceramic fibre chimney filter by positive pressurisation, and coating time is 20 minutes, coating pressure
Power is 3Mpa.Ceramic fibre chimney filter after finally coating is sent to dry section 12.
Then step S12 is executed, laitance and fixed catalyst on ceramic fibre chimney filter are blown down using hot compressed air
Slurries form wet catalysis type ceramic fibre chimney filter on ceramic fibre chimney filter.Wherein the temperature of hot compressed air is 60 degrees Celsius,
The pressure of hot compressed air is 4MPa, and the supply time of hot compressed air is 2 hours.There are the wet ceramics of catalyst slurry to load
Fiber chimney filter carries out weight measurement, to obtain the weight that load has the wet ceramic fibre chimney filter of catalyst slurry.Transmit wet ceramics
Fiber chimney filter is to heat-treatment zone 13.
Then step S13 is executed, wet catalysis type ceramic fibre chimney filter is calcined, first to wet catalysis type before calcining
Ceramic fibre chimney filter is dehydrated, and drying temperature is 150 degrees Celsius, and drying time is 10 hours.Then to dehydration and drying
Catalytic type ceramic fibre chimney filter afterwards is calcined, and to carry out high-temperature activation to catalytic type ceramic fibre chimney filter, calcination temperature is
450 degrees Celsius, calcination time is 3 hours.Calcined catalytic type ceramic fibre chimney filter is sent to inspection area 14.
Then step S14 is executed, is tested to catalytic type ceramic fibre chimney filter, after inspection result judgement detection
Whether catalytic type ceramic fibre chimney filter complies with standard, and the person of complying with standard is qualified catalytic type ceramic fibre chimney filter.Wherein detect
Content is to detect the appearance and physical property (apparent size and weight) of catalytic type ceramic fibre chimney filter, by visual observation detection catalysis
Whether the appearance of type ceramic fibre chimney filter damaged and damaged degree, passes through detection device and measures the outer of catalytic type ceramic fibre chimney filter
It sees size (length, width or thickness), the weight of catalytic type ceramic fibre chimney filter is measured by Weighing apparatus.Then by qualification
Catalytic type ceramic fibre chimney filter is sent to discharge zone 15.Finally execute step S15, to qualified catalytic type ceramic fibre chimney filter into
Row packaging delivery.
Embodiment 3
The production line production load PdO that the present embodiment passes through catalytic type ceramic fibre chimney filterx/CeOx-ZrO2-Al2O3Yi Hui
The catalytic type ceramic fibre chimney filter of hair property organic matter (VOCs) oxidation catalyst, production technology is to first carry out step S10, pre- to locate
Reason is located at the ceramic fibre chimney filter of pretreating zone 10, and in this present embodiment, the length of ceramic fibre chimney filter is 3 meters, passes through biography
Defeated device slings ceramic fibre chimney filter, then removes the floating dust on ceramic fibre chimney filter by dust-extraction unit, finally using weighing
Device measures the ceramic fibre chimney filter after removal floating dust, to obtain the initial weight of ceramic fibre chimney filter.After pretreatment
Ceramic fibre chimney filter be sent to coating area 11.
Then step S11 is executed, coats catalyst slurry on ceramic fibre chimney filter.Before coating catalyst slurry, first
Catalyst slurry, catalysis used in the catalyst slurry of the present embodiment are deployed in reaction kettle by catalyst preparation device
Agent includes PdOxAnd CeOx-ZrO2, PdOxAnd CeOx-ZrO2Mass fraction be respectively 0.5%-2% and 45%-55%, catalysis
Agent solid content is 38wt%, and the viscosity of catalyst is 300mpas, and granularity is 5 μm.
Template in catalyst slurry uses CTAB, and the soda acid regulator in catalyst slurry uses alkaline regulator,
The acid regulator of the present embodiment is diethylamine, adjusts the pH value of catalyst slurry to 13, the catalyst slurry of the present embodiment
It further include binder, binder uses silica gel.Catalyst, template, soda acid regulator and binder by mechanical stirring and/or
Ultrasonic agitation mixing, wherein mixing time is 60 minutes.After the completion of catalyst slurry preparation, catalyst slurry passes through acid and alkali-resistance
Liquid delivery pump is transmitted in coating unit, and coating unit is coated catalyst slurry to ceramic fibre chimney filter by reversed negative pressure
On, coating time is 20 minutes, and coating pressure is 4Mpa.Ceramic fibre chimney filter after finally coating is sent to dry section 12.
Then step S12 is executed, laitance and fixed catalyst on ceramic fibre chimney filter are blown down using hot compressed air
Slurries form wet catalysis type ceramic fibre chimney filter on ceramic fibre chimney filter.Wherein the temperature of hot compressed air is 70 degrees Celsius,
The pressure of hot compressed air is 5MPa, and the supply time of hot compressed air is 1 hour.There are the wet ceramics of catalyst slurry to load
Fiber chimney filter carries out weight measurement, to obtain the weight that load has the wet ceramic fibre chimney filter of catalyst slurry.Transmit wet ceramics
Fiber chimney filter is to heat-treatment zone 13.
Then step S13 is executed, wet catalysis type ceramic fibre chimney filter is calcined, first to wet catalysis type before calcining
Ceramic fibre chimney filter is dehydrated, and drying temperature is 180 degrees Celsius, and drying time is 8 hours.Then to dehydration and drying after
Catalytic type ceramic fibre chimney filter calcined, to carry out thermal activation to catalytic type ceramic fibre chimney filter, calcination temperature is 450 to take the photograph
Family name's degree, calcination time are 2 hours.Calcined catalytic type ceramic fibre chimney filter is sent to inspection area 14.
Then step S14 is executed, is tested to catalytic type ceramic fibre chimney filter, after inspection result judgement detection
Whether catalytic type ceramic fibre chimney filter complies with standard, and the person of complying with standard is qualified catalytic type ceramic fibre chimney filter.Wherein detect
Content is to detect the appearance and physical property (apparent size and weight) of catalytic type ceramic fibre chimney filter, by visual observation detection catalysis
Whether the appearance of type ceramic fibre chimney filter damaged and damaged degree, passes through detection device and measures the outer of catalytic type ceramic fibre chimney filter
It sees size (length, width or thickness), the weight of catalytic type ceramic fibre chimney filter is measured by Weighing apparatus.Then by qualification
Catalytic type ceramic fibre chimney filter is sent to discharge zone 15.Finally execute step S15, to qualified catalytic type ceramic fibre chimney filter into
Row packaging delivery.
In conclusion a kind of production technology of catalytic type ceramic fibre chimney filter provided by the present application, is based on pretreated step
Suddenly, the floating dust on ceramic fibre chimney filter can be blown down by compressed gas before coating catalyst slurry, to facilitate catalyst
Slurries can be more completely coated on ceramic fibre chimney filter, effectively promote the production yield of catalytic type ceramic fibre chimney filter.
In addition, weighing is carried out to ceramic fiber tube in the step of production technology of the application is by before, during and after production, and
The drying of the result and slurries that are coated based on the difference of weight come catalyst testing slurries is as a result, effectively promote catalytic type pottery
The production yield of porcelain fiber chimney filter.
In addition, the production technology of the application is by catalyst slurry thermal activation, enabling being coated in of catalyst stability
Ceramic fibre chimney filter, and with ceramic fibre chimney filter stable bond, effectively allow ceramic fibre chimney filter promoted catalytic type ceramic fibre
The production yield of chimney filter simultaneously has the ability that denitration desulfurization removes volatile organic compounds (VOCs).
It, can batch by the catalytic type ceramic fibre chimney filter production line and production technology of the application in the embodiment of the present application
The ceramic fibre chimney filter that there is denitration desulfurization to remove volatile organic compounds (VOCs) ability is produced, current ceramic fibre filter is solved
Pipe lacks the problem of denitration desulfurization removes volatile organic compounds (VOCs) ability.
In addition, the catalytic type ceramic fibre chimney filter production line by the application meets reality and connection and reasonable arrangement, make it have
Good the degree of automation and integration degree, and the catalytic type ceramic fibre filter for loading various catalyst can be produced in batches
Pipe.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Embodiments herein is described above in conjunction with attached drawing, but the application be not limited to it is above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the enlightenment of the application, when not departing from the application objective and scope of the claimed protection, can also it make very much
Form belongs within the protection of the application.
Claims (10)
1. a kind of catalytic type ceramic fibre chimney filter production line, which is characterized in that including coating area, dry section and heat-treatment zone, institute
Coating area, the dry section and the heat-treatment zone sequential are stated, in the coating area, coats catalyst slurry in described
On ceramic fibre chimney filter, and the ceramic fibre chimney filter after coating is transmitted to the dry section；In the dry section, go
Except the laitance on the ceramic fibre chimney filter and the fixed catalyst slurry is on the ceramic fibre chimney filter, wet to obtain
Catalytic type ceramic fibre chimney filter, the wet catalysis type ceramic fibre chimney filter are sent to the heat-treatment zone；In the heat-treatment zone
In, thermal activation is carried out to the wet catalysis type ceramic fibre chimney filter, to obtain catalytic type ceramic fibre chimney filter.
2. catalytic type ceramic fibre chimney filter production line as described in claim 1, which is characterized in that be arranged in the coating area
There are catalyst preparation device and coating unit, the catalyst preparation device prepares the catalyst slurry, the coating unit
The catalyst slurry is coated in the ceramic fibre chimney filter.
3. catalytic type ceramic fibre chimney filter production line as described in claim 1, which is characterized in that be arranged in the dry section
There is blowning installation, the blowning installation removes the laitance on the ceramic fibre chimney filter by hot compressed air, and solid
The fixed catalyst slurry is on the ceramic fibre chimney filter, to obtain the wet catalysis type ceramic fibre chimney filter.
4. catalytic type ceramic fibre chimney filter production line as described in claim 1, which is characterized in that set in the heat-treatment zone
It is equipped with drying device and calciner plant, the drying device dehydrates the wet catalysis type ceramic fibre chimney filter, institute
Calciner plant is stated to calcine the catalytic type ceramic fibre chimney filter after dehydrating.
5. a kind of production technology of catalytic type ceramic fibre chimney filter, which is characterized in that it uses catalysis as described in claim 1
Type ceramic fibre chimney filter production line is produced comprising:
Pre-process the ceramic fibre chimney filter；
The catalyst slurry is coated on the ceramic fibre chimney filter；
It removes the laitance of the ceramic fibre chimney filter and the fixed catalyst slurry is on the ceramic fibre chimney filter, to obtain
Obtain the wet catalysis type ceramic fibre chimney filter；
Wet catalysis type ceramic fibre chimney filter described in thermal activation, to obtain the catalytic type ceramic fiber tube.
6. production technology as claimed in claim 5, which is characterized in that the step of pre-processing the ceramic fibre chimney filter include:
Remove the floating dust on the ceramic fibre chimney filter；
The initial weight of the ceramic fibre chimney filter after measuring dedusting.
7. production technology as claimed in claim 5, which is characterized in that coat the catalyst slurry and filtered in the ceramic fibre
Before step on pipe, the catalyst slurry is prepared；
Wherein, described the step of preparing the catalyst slurry, includes:
Mixed catalyst and template, to obtain mixed serum；
Soda acid regulator is added in the mixed serum, adjusts the pH value of the mixed serum；
The catalyst, the template and the soda acid regulator are mixed, to obtain the catalyst slurry.
8. production technology as claimed in claim 7, which is characterized in that mix the catalyst, the template and the acid
The step of alkali regulator is to mix the catalyst, the template and the soda acid by mechanical stirring and/or ultrasonic agitation
Regulator.
9. production technology as claimed in claim 7, which is characterized in that coat the catalyst slurry and filtered in the ceramic fibre
Step on pipe is coated by immersion coating, positive pressurisation coating or reversed negative pressure.
10. production technology as claimed in claim 7, which is characterized in that wet catalysis type ceramic fibre chimney filter described in thermal activation
Step includes:
The wet catalysis type ceramic fibre chimney filter is dehydrated；
The catalytic type ceramic fibre chimney filter after dehydration and drying is calcined.
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| CN113577916A (en) * | 2021-07-12 | 2021-11-02 | 浙江致远环境科技有限公司 | Preparation process of ceramic composite fiber catalytic filter tube |
| CN114602454A (en) * | 2022-03-09 | 2022-06-10 | 青岛华世洁环保科技有限公司 | Integrated ceramic fiber tube SCR denitration catalyst and preparation method and application thereof |
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