CN106110870A - Coal-burning boiler dry dust removal and system for desulfuration and denitration - Google Patents
Coal-burning boiler dry dust removal and system for desulfuration and denitration Download PDFInfo
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- CN106110870A CN106110870A CN201610785437.XA CN201610785437A CN106110870A CN 106110870 A CN106110870 A CN 106110870A CN 201610785437 A CN201610785437 A CN 201610785437A CN 106110870 A CN106110870 A CN 106110870A
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- coal
- denitration
- desulfuration
- dust removal
- burning boiler
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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
- B01D53/81—Solid phase processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- 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
- B01D53/8603—Removing sulfur compounds
-
- 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
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/25—Coated, impregnated or composite adsorbents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention discloses coal-burning boiler dry dust removal and system for desulfuration and denitration, including the waste heat recovery apparatus being sequentially connected with by pipeline, pulsed precipitron, dry chemical Catalytic processor, air-introduced machine and exhaust apparatus；Pulsed precipitron includes square casing, is installed on the ash bucket below square casing, is provided with receipts ash car below ash bucket；Square casing bottom surface opening, sidewall is provided with system controller and pneumatic indicator；Hopper bottom is provided with dust outlet, and lateral wall is provided with vibrating device, and inside is provided with high charge level detection device；Dry chemical Catalytic processor includes hollow housing, catalytic treatment box, nebulizer；Catalytic treatment box is positioned at inside hollow housing；It is connected to atomizer above catalytic treatment box；Connected by mist pipe between atomizer with nebulizer；In catalytic treatment box, adsorbent is set；Adsorbent includes quick lime.Coal-fired flue-gas is after the present invention processes, and indices all fully meets " emission standard of air pollutants for boilers (GB 13,271 2014).
Description
Technical field
The invention belongs to field of environment protection equipment, be specifically related to a kind of coal-burning boiler dry dust removal and system for desulfuration and denitration, can
For burning coal burning boiler dedusting.
Background technology
Along with the development of modern industry, the impact that the health of environment and the mankind is caused by dust is day by day serious, effectively
Administering dust pollution, Environmental protection pay attention to day by day and global warming phenomenon are serious in recent years, in order to advocate carbon reduction,
Environmental protection industry is flourish, purifies the living environment of the mankind, it has also become proprietary common recognition.In order to safeguard that production environment is clean,
Must clear up in time by the place of dust pollution.Cleaner unit, especially sack cleaner, be widely used in metallurgy, building materials, machine
In the udst separations of various industrial and mining establishment non-fiber industrial dust such as tool, chemical industry, mine and the recovery of material.But, existing
Sack cleaner, also exists the drawbacks such as ash-removal effect is undesirable, purification efficiency is low, life-span of the filter bag is short, maintenance load is big, seriously
Have impact on normal, the effective use of filter, so, need the structure to existing filter badly and improve so that deashing side
Just, efficiency high, need to use blowning installation to filter deashing, to improve dust removing effects.
Burning coal burning boiler, is designed as burning coal, according to " emission standard of air pollutants for boilers (GB 13271-2014),
For meeting environmental requirement, it is ensured that harmful substance nitrogen oxides and sulfide emission reach regulatory emissions standards, need to design flue gas
Dedusting, denitration and desulfurization processing system.The enterprise that China presently, there are small scale is a lot, processes economic strength and the technology of the three wastes
Level is relatively low, and environment causes the biggest harm；The world today faces the severe challenge entirely asking financial crisis and climate change, must
Scientific and technical innovation development low-carbon economy must be continued to rely upon, it is achieved environmental economy is advanced altogether.
Summary of the invention
It is an object of the invention to provide a kind of coal-burning boiler dry dust removal and system for desulfuration and denitration, the coal burning boiler that is used for burning removes
Dirt, beneficially environmental protection development.
To achieve the above object of the invention, the technical solution used in the present invention is: a kind of coal-burning boiler dry dust removal and desulfurization
Denitrating system, including waste heat recovery apparatus, pulsed precipitron, dry chemical Catalytic processor, air-introduced machine and exhaust apparatus；
Described waste heat recovery apparatus, pulsed precipitron, dry chemical Catalytic processor, air-introduced machine and exhaust apparatus are depended on by pipeline
Secondary connection；Described exhaust apparatus is provided with inspection socket；Described pulsed precipitron includes square casing, ash bucket；Described ash bucket is installed
Below square casing；Described square casing bottom surface opening；Described ash bucket end face opening；Described square casing connects with ash bucket；
The internally installed filter of described square casing；Described hopper bottom is provided with dust outlet；Described dry chemical Catalytic processor bag
Include hollow housing, catalytic treatment box, nebulizer；Described catalytic treatment box is positioned at inside hollow housing；On described catalytic treatment box
Side is connected to atomizer；Connected by mist pipe between described atomizer and nebulizer；Described hollow housing sidewall be provided with into
Airduct；On described hollow housing, the sidewall relative with the sidewall being provided with blast pipe is provided with discharge pipe；Described air-introduced machine fills with aerofluxus
Pipeline between putting is provided with non-return air door；In described catalytic treatment box, adsorbent is set；Described adsorbent includes quick lime.
In the present invention, filter is generally filter bag, including supporter and the bag body of parcel supporter, can be existing
Non-woven fabrics filter bag, fabric filter bag, generally circular；Supporter typically uses elastic piston ring, can form tight type contact, keep away
Exempt from smoke spillage；Filter bag upper end is arranged on filter support seat, and lower end is arranged on filter lower wall, can connect filter
Upper lower burrs.Square casing has six sidewalls, and diapire is hatch frame, connects with ash bucket, in four sidewalls, at symmetrical two
It is respectively provided with air intake and air-out on sidewall, is combined with pipeline and runs for air-flow；Another two sidewall typically seals；Air is by housing
Air intake enter, go out from air-out, middle through filter, dust is intercepted absorption by filter, thus reaches flue gas ash removal
Effect；Use the housing of square structure, be on the one hand conducive to the installation of the parts such as filter, mainly avoid gas leakage, i.e. prevent
Partial fume is directly gone out from air outlet without filter.Owing to coal-fired flue-gas is awfully hot, in order to prevent flue-gas temperature too high
And damage filter, the present invention be provided with on the pipeline between waste heat recovery apparatus and pulsed precipitron pneumatic benefit wind air door with
And temperature sensor, its temperature probe is positioned at pipeline, is specifically installed on which face sidewall and does not limits, according to actual place certainly
Fixed, inside smoke temperature can be monitored, temperature sensor is commercial products.
Being prepared as of adsorbent of the present invention, by NPE and sodium aluminosilicate, disodium hydrogen phosphate, gathers
Ureaformaldehyde, butyl acrylate mix, and 120 DEG C of process obtain glutinous fluid for 65 minutes；By five nitric hydrate bismuths, nickel oxide, hexadecane
Base trimethyl ammonium chloride, diethyl phosphite, the propargyl ester of the different acid of bromo fourth, polyvinyl butyral resin mix；Ball mill ball milling 4h
After insert in Muffle furnace, 700～800 DEG C sintering 45 minutes after 1100～1200 DEG C sinter 15 minutes；Then obtain after natural cooling
To porous material；By in the porous material immersion methanol containing 2,2'-Azobis(2,4-dimethylvaleronitrile) 5 minutes；Then dry and obtain solid；Will be solid
Body obtains powder after pulverizing；Powder is added to the water, stirs 20 minutes；It is subsequently adding glutinous fluid, double (2,3-epoxy basic ring penta
Base) ether and the bromo-beta naphthal of 1-, chitosan, ethanol, 150 DEG C are reacted 1 hour；Last dry reaction liquid obtains solid, with addition of life
After Calx, dry type pressure ball obtains adsorbent.NPE, sodium aluminosilicate, disodium hydrogen phosphate, uramit,
The mass ratio of butyl acrylate is 1: (0.2～0.3): (0.3～0.35): (0.5～0.7): (0.15～0.17)；Five hydration nitre
Acid bismuth, nickel oxide, hexadecyltrimethylammonium chloride, diethyl phosphite, the propargyl ester of the different acid of bromo fourth, polyvinyl butyral resin
Mass ratio be (0.5～0.6): (0.1～0.12): (0.3～0.35): (0.5～0.7): (0.25～0.27): 1；Porous material
Material, the mass ratio of 2,2'-Azobis(2,4-dimethylvaleronitrile) are (50～56): 1；Powder, glutinous fluid, double (2,3-epoxy radicals cyclopenta) ether, 1-are bromo-
Beta naphthal, the mass ratio of chitosan are (0.2～0.22): 1: (0.3～0.35): (0.2～0.21): (0.1～0.11).Gu
Body, the mass ratio of quick lime are (0.7～0.8): 1.Each component of smoke mixture had good absorption and reactivity, cigarette
After aspiration enters catalytic treatment box, chemosorbent will produce chemistry chemistry adsorption phenomena with it, and make tail end discharge waste gas nitrogen, sulfur
Compound concentration is less than national standard, to meet rules and regulations.Adsorb saturated chemosorbent under system not stopped status, then
Through water atomization catalyst reduction system, by its automatic reduction, can extend and persistently use；The one-tenth branch of chemical adsorbent and target gas
Body produces molecular link, comprises molecule and intermolecular Van der Waals force, and forms simple compound, further up to inhaling completely
Attached, object gas can not run away completely, is stuck in sorbent molecule pore structure.
In the present invention, position relationship is all virtual condition；Housing, ash bucket are all hollow-core construction, according to actual installation position, ash
Bucket is installed on below housing, and ash bucket end face size is in the same size with housing bottom surface, is all hatch frame, thus enclosure interior and ash
The internal connection of bucket；Thus, the dust that the filter bag that enclosure interior is installed is shaken off can the most directly fall to ash bucket, does not exists to fall
Ash dead angle, then the dust outlet collection eliminating below ash flue bucket, can be provided with receipts ash car below ash bucket, be beneficial to transport.Side
Shape housing sidewall is provided with system controller and pneumatic indicator, and system controller is existing product, can control equipment and run,
Pneumatic indicator can be Pressure gauge, monitors housing pressure, it is ensured that safety, and is combined with pneumatic benefit wind air door, can control
The gas pressure of whole process, reaches optimal filtration treatment effect.
In the present invention, filter is vertically installed at enclosure interior, forms smoke filtration layer, the installation quantity of filter, row
Row mode can be selected according to housing size, filter size and flue gas flow, it is to avoid smoke spillage.
In the present invention, catalytic treatment box be dry chemical adsorbent deposit place, porous material form sidewall and be used for
Flue gas circulates；Two sidewalls that hollow housing is symmetrical are respectively provided with air intake and air-out, are combined with pipeline and run for air-flow；
Another two sidewall typically seals；Air is entered by the air intake of housing, goes out from air-out, and middle through catalytic treatment box, chemistry is inhaled
Attached dose will produce chemical reaction, chemisorbed phenomenon with flue gas, and flue gas is by catalytic treatment, thus reaches the effect of flue gas desulfurization and denitrification
Really, tail end discharges waste gas nitrogen, sulfide concentration is less than national standard, to meet rules and regulations.Adsorb saturated chemosorbent
Under system not stopped status, then through water atomization catalyst reduction system automatic reduction, and can extend and persistently use.
In the present invention, connected by mist pipe between atomizer with nebulizer, thus the steam after atomization can be from mist
Change device is delivered to atomizer and is sprayed to catalytic treatment box again, reaches the reduction to chemosorbent so that its surface is raw
The solid catalysis product become comes off, and spills new interface so that it is can recycle；Can intermittently enter in the case of non-stop-machine
Row atomization reduction, atomization air flow can provide catalytic effect to improve desulfurization off sulfide effect, and thermal current can take away the water smoke that surplus is little；
Can also carry out restoring operation under stopped status, from blast pipe air intake, discharge pipe goes out, and reaches to remove the effect of water smoke, preferably
Blast pipe and discharge pipe are positioned at the cornerwise two ends of hollow housing, and diagonal positions can reach optimal except fog effect；Air intake
Pipe, discharge pipe are provided with valve, controllable switch；Hollow housing sidewall is provided with pneumatic indicator, such as Pressure gauge, monitors housing pressure
Power, it is ensured that safety, and be combined with pneumatic benefit wind air door, the gas pressure of whole process can be controlled, reach optimal catalysis
Treatment effect.Catalytic treatment box is vertically installed at enclosure interior, forms flue gas adsorption layer, and its installation quantity, arrangement mode are permissible
Select according to housing size and flue gas flow, it is to avoid smoke spillage.
The present invention is provided with vibrating device in ash bucket lateral wall, can tap or rapping ash bucket, thus beneficially dust takes off
Fall, be more easy to discharge from dust outlet；High charge level detection device it is provided with, it is to avoid dust accumulation inside ash bucket.Ash disclosed by the invention
Bucket is truncated rectangular pyramids structure, and upper bottom surface is similar rectangle or square, and side is isosceles trapezoid, according to installment state, ash
The upper bottom surface of bucket is consistent with housing bottom surface；In order to fall, ash is smooth and easy, no backup, and the incline of truncated rectangular pyramids and the angle of upper bottom surface are 65
～85 degree.Exhaust apparatus is chimney, can carry out tail-gas quality detection by inspection socket.
Owing to technique scheme is used, the present invention compared with prior art has the advantage that
1. present invention firstly discloses a kind of coal-burning boiler dry dust removal and system for desulfuration and denitration, be exclusively used in burning coal burning boiler and remove
Dirt, creatively arranges atomization in chemical catalysis processor and goes back original system, can not shut down the reduction realizing chemosorbent, also
Can shutdown operation；Using the time for extending chemical adsorbent, the water atomization catalyst reduction system of design operates at coal-burning boiler
In, control to spray into a small amount of aqueous vapor of atomization, produce chemical catalysis with chemosorbent, and make chemosorbent reduce, to extend suction
Attached dose of saturated replacing construction reaches energy-conservation more environmentally friendly concept.
Coal-burning boiler dry dust removal the most disclosed by the invention and system for desulfuration and denitration, rationally, dismounting is easy for structure composition,
It is suitable for multiple parts；At boiler rear increase waste heat recovery apparatus economizer to reduce heat energy loss, after cleaner unit, dress chemistry is inhaled
Attached dose of purification facility, processes nitrogen oxides and sulfide harmful substance；Application sack cleaner carries out dedusting recovery to flue gas, reaches
PM2.5 discharge standard, finally makees final purification air-treatment with chemosorbent, installs water atomization additional also at chemical catalysis datatron
Original system is to guarantee to reach emission regulation demands, and can extend the chemosorbent use time to reduce garbage, chemisorbed
Agent is that alkalescence can use the mode of burying to process Litter not result in secondary public hazards；Solve existing water curtain sprinkling system and SCR
Metal solvent spray ammonia catalysis system processes the defect of emission effect difference；Service life of equipment is long simultaneously, it is adaptable to high temperature, Acidity of Aikalinity
The dust removal process of coal-fired flue-gas.
Accompanying drawing explanation
Fig. 1 is the structural representation of coal-burning boiler dry dust removal and system for desulfuration and denitration；
Wherein, 1, dry chemical Catalytic processor；11, hollow housing；12, catalytic treatment box；13, blast pipe；14, atomization spray
Head；15, nebulizer；16, discharge pipe；17, pneumatic indicator；2, pulsed precipitron；21, square casing；22, ash bucket；221、
Dust outlet；222, vibrating device；23, ash car is received；24, system controller；25, pneumatic indicator；26, filter；3, air inducing
Machine；4, waste heat recovery apparatus；5, exhaust apparatus；51, inspection socket；6, non-return air door；7, wind air door is mended；8, temperature sensor.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
Embodiment one
Seeing accompanying drawing 1, coal-burning boiler dry dust removal and system for desulfuration and denitration include dry chemical Catalytic processor 1, pulsed collection
Dirt machine 2, air-introduced machine 3, waste heat recovery apparatus 4 and exhaust apparatus 5；Waste heat recovery apparatus, pulsed precipitron, dry chemical are urged
Change processor, air-introduced machine and exhaust apparatus to be sequentially connected with by pipeline；Waste heat recovery apparatus is connected on fire coal boiler fume outlet；
Exhaust apparatus is chimney, is provided with inspection socket 51；Pulsed precipitron includes square casing 21, is installed on the ash below square casing
Bucket 22, is provided with receipts ash car 23 below ash bucket；Ash bucket end face opening, square casing bottom surface opening, connect with ash bucket；Square casing side
Wall is provided with system controller 24 and pneumatic indicator 25, internally installed filter 26；Ash bucket is truncated rectangular pyramids structure, and incline is with upper
The angle of bottom surface is 85 degree；Hopper bottom is provided with dust outlet 221, and lateral wall is provided with vibrating device 222, and inside is provided with high charge level
Detection device；Dry chemical Catalytic processor includes hollow housing 11, catalytic treatment box 12, nebulizer 15；Catalytic treatment box position
Inside hollow housing；Atomizer 14 it is connected to above catalytic treatment box；Between atomizer and nebulizer by mist pipe even
Logical；Hollow housing sidewall is provided with blast pipe 13, and the sidewall relative with the sidewall being provided with blast pipe is provided with discharge pipe 16；Hollow housing
Sidewall is provided with pneumatic indicator 17, and blast pipe and discharge pipe are positioned at the cornerwise two ends of hollow housing；Air-introduced machine and exhaust apparatus
Between pipeline be provided with non-return air door 6；Pipeline between waste heat recovery apparatus and pulsed precipitron is provided with pneumatic benefit wind
Air door 7 and temperature sensor 8；In described catalytic treatment box, adsorbent is set；In figure, same parts marks at one, and routine connects
Head, installing plate mark, and arrow is flow of flue gas direction.
Being prepared as of the present embodiment adsorbent, by NPE and sodium aluminosilicate, disodium hydrogen phosphate,
Uramit, butyl acrylate mix, and 120 DEG C of process obtain glutinous fluid for 65 minutes；By five nitric hydrate bismuths, nickel oxide, 16
Alkyl trimethyl ammonium chloride, diethyl phosphite, the propargyl ester of the different acid of bromo fourth, polyvinyl butyral resin mix；Ball mill ball milling
Insert after 4h in Muffle furnace, 700～800 DEG C sintering 45 minutes after 1100～1200 DEG C sinter 15 minutes；Then after natural cooling
Obtain porous material；By in the porous material immersion methanol containing 2,2'-Azobis(2,4-dimethylvaleronitrile) 5 minutes；Then dry and obtain solid；Will
Solid obtains powder after pulverizing；Powder is added to the water, stirs 20 minutes；It is subsequently adding glutinous fluid, double (2,3-epoxy basic ring penta
Base) ether and the bromo-beta naphthal of 1-, chitosan, ethanol, 150 DEG C are reacted 1 hour；Last dry reaction liquid obtains solid, with addition of life
After Calx, dry type pressure ball obtains adsorbent.NPE, sodium aluminosilicate, disodium hydrogen phosphate, uramit,
The mass ratio of butyl acrylate is 1: (0.2～0.3): (0.3～0.35): (0.5～0.7): (0.15～0.17)；Five hydration nitre
Acid bismuth, nickel oxide, hexadecyltrimethylammonium chloride, diethyl phosphite, the propargyl ester of the different acid of bromo fourth, polyvinyl butyral resin
Mass ratio be (0.5～0.6): (0.1～0.12): (0.3～0.35): (0.5～0.7): (0.25～0.27): 1；Porous material
Material, the mass ratio of 2,2'-Azobis(2,4-dimethylvaleronitrile) are (50～56): 1；Powder, glutinous fluid, double (2,3-epoxy radicals cyclopenta) ether, 1-are bromo-
Beta naphthal, the mass ratio of chitosan are (0.2～0.22): 1: (0.3～0.35): (0.2～0.21): (0.1～0.11)；Gu
Body, the mass ratio of quick lime are (0.7～0.8): 1.
Embodiment two
Coal-burning boiler dry dust removal and system for desulfuration and denitration include waste heat recovery apparatus, the pulsed collection being sequentially connected with by pipeline
Dirt machine, dry chemical Catalytic processor, air-introduced machine and exhaust apparatus, pipeline lateral wall is provided with heat-insulation layer, keeps away while joint heat
Exempt from heat injury；Waste heat recovery apparatus is connected on fire coal boiler fume outlet；Exhaust apparatus is chimney, is provided with inspection socket；Arteries and veins
The formula precipitron of punching includes square casing, is installed on the ash bucket below square casing, is provided with receipts ash car below ash bucket；At the bottom of square casing
Face opening, sidewall is provided with system controller and pneumatic indicator；Ash bucket end face opening, connects with ash bucket；Inside square casing
Filter is installed；Ash bucket is truncated rectangular pyramids structure, and incline is 65 degree with the angle of upper bottom surface；Hopper bottom is provided with dust outlet, outward
Sidewall is provided with vibrating device, and inside is provided with high charge level detection device；Dry chemical Catalytic processor includes at hollow housing, catalysis
Reason box, nebulizer；Catalytic treatment box is positioned at inside hollow housing；It is connected to atomizer above catalytic treatment box；Atomizer with
Connected by mist pipe between nebulizer；Hollow housing sidewall is provided with blast pipe, the sidewall relative with the sidewall being provided with blast pipe
It is provided with discharge pipe；Hollow housing sidewall is provided with pneumatic indicator, and blast pipe and discharge pipe are positioned at the cornerwise two ends of hollow housing；
Pipeline between air-introduced machine and exhaust apparatus is provided with non-return air door；Pipeline between waste heat recovery apparatus and pulsed precipitron
It is provided with pneumatic benefit wind air door and temperature sensor；In described catalytic treatment box, adsorbent is set；Described adsorbent is for implementing
The adsorbent of example one.
Coal-fired flue-gas (165-200 degree), after heat exchange, enters enclosure interior from square casing air intake, through filtering
Device, carries out flue gas ash removal；Flue gas after dedusting enters dry type Catalytic processor, under chemosorbent effect at desulphurization denitration
Reason, tail gas is discharged through chimney from air-introduced machine；It is possible to prevent flue-gas temperature too high according to temperature sensor and damages filter, root
According to the prompting of high charge level detection device, open the vibrating device of ash bucket lateral wall, accelerate the ash that falls；Atomization is utilized to go back original system permissible
Catalytic chemistry adsorption reaction, increases adsorption effect, and indices all fully meets " emission standard of air pollutants for boilers (GB
13271-2014)。
Claims (10)
1. coal-burning boiler dry dust removal and a system for desulfuration and denitration, including waste heat recovery apparatus, pulsed precipitron, dry type
Learn Catalytic processor, air-introduced machine and exhaust apparatus；At described waste heat recovery apparatus, pulsed precipitron, dry chemical catalysis
Reason device, air-introduced machine and exhaust apparatus are sequentially connected with by pipeline；Described exhaust apparatus is provided with inspection socket；Described pulsed dust
Machine includes square casing, ash bucket；Described ash bucket is installed on below square casing；Described square casing bottom surface opening；Described ash bucket
End face opening；Described square casing connects with ash bucket；The internally installed filter of described square casing；Described hopper bottom is provided with powder
Dirt exports；Described dry chemical Catalytic processor includes hollow housing, catalytic treatment box, nebulizer；Described catalytic treatment box position
Inside hollow housing；It is connected to atomizer above described catalytic treatment box；Mist is passed through between described atomizer and nebulizer
Change pipe connection；Described hollow housing sidewall is provided with blast pipe；On described hollow housing, the side relative with the sidewall being provided with blast pipe
Wall is provided with discharge pipe；Pipeline between described air-introduced machine and exhaust apparatus is provided with non-return air door；Set in described catalytic treatment box
Put adsorbent；Described adsorbent includes quick lime.
Coal-burning boiler dry dust removal and system for desulfuration and denitration the most according to claim 1, it is characterised in that: described exhaust apparatus
For chimney.
Coal-burning boiler dry dust removal and system for desulfuration and denitration the most according to claim 1, it is characterised in that: below described ash bucket
It is provided with receipts ash car；Described ash bucket lateral wall is provided with vibrating device；High charge level detection device it is provided with inside described ash bucket.
Coal-burning boiler dry dust removal and system for desulfuration and denitration the most according to claim 1, it is characterised in that: described square casing
Sidewall is provided with system controller and pneumatic indicator.
Coal-burning boiler dry dust removal and system for desulfuration and denitration the most according to claim 1, it is characterised in that: described hollow housing
Sidewall is provided with pneumatic indicator；Described blast pipe and discharge pipe are positioned at the cornerwise two ends of hollow housing.
Coal-burning boiler dry dust removal and system for desulfuration and denitration the most according to claim 1, it is characterised in that: described waste heat recovery
Pipeline between equipment and pulsed precipitron is provided with pneumatic benefit wind air door and temperature sensor.
Coal-burning boiler dry dust removal and system for desulfuration and denitration the most according to claim 1, it is characterised in that: described ash bucket is four
Terrace with edge structure；The incline of described truncated rectangular pyramids and the angle of upper bottom surface are 65～85 degree.
Coal-burning boiler dry dust removal and system for desulfuration and denitration the most according to claim 1, it is characterised in that: described adsorbent
It is prepared as, NPE is mixed with sodium aluminosilicate, disodium hydrogen phosphate, uramit, butyl acrylate,
120 DEG C of process obtain glutinous fluid for 65 minutes；By five nitric hydrate bismuths, nickel oxide, hexadecyltrimethylammonium chloride, phosphorous acid two
Ethyl ester, the propargyl ester of the different acid of bromo fourth, polyvinyl butyral resin mix；Insert in Muffle furnace after ball mill ball milling 4h, 700～800
DEG C sintering 45 minutes after 1100～1200 DEG C sinter 15 minutes；Then porous material is obtained after natural cooling；Porous material is soaked
Enter in the methanol containing 2,2'-Azobis(2,4-dimethylvaleronitrile) 5 minutes；Then dry and obtain solid；Powder is obtained after being pulverized by solid；By powder
It is added to the water, stirs 20 minutes；Be subsequently adding glutinous fluid, double (2,3-epoxy radicals cyclopenta) ether and the bromo-beta naphthal of 1-, shell gathers
Sugar, ethanol, 150 DEG C are reacted 1 hour；Last dry reaction liquid obtains solid, obtains adsorbent with addition of dry type pressure ball after quick lime.
Coal-burning boiler dry dust removal and system for desulfuration and denitration the most according to claim 8, it is characterised in that: described nonyl phenol gathers
Oxygen vinyl Ether, sodium aluminosilicate, disodium hydrogen phosphate, uramit, the mass ratio of butyl acrylate are 1: (0.2～0.3):
(0.3～0.35): (0.5～0.7): (0.15～0.17)；Five nitric hydrate bismuths, nickel oxide, hexadecyltrimethylammonium chloride,
Diethyl phosphite, the propargyl ester of the different acid of bromo fourth, the mass ratio of polyvinyl butyral resin are (0.5～0.6): (0.1～0.12):
(0.3～0.35): (0.5～0.7): (0.25～0.27): 1；Porous material, the mass ratio of 2,2'-Azobis(2,4-dimethylvaleronitrile) are (50～56)
∶1；Powder, glutinous fluid, double (2,3-epoxy radicals cyclopenta) ether, the bromo-beta naphthal of 1-, the mass ratio of chitosan are (0.2～0.22)
: 1: (0.3～0.35): (0.2～0.21): (0.1～0.11).
Coal-burning boiler dry dust removal and system for desulfuration and denitration the most according to claim 8, it is characterised in that: solid, quick lime
Mass ratio be (0.7～0.8): 1.
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Cited By (1)
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| CN107321150A (en) * | 2017-08-25 | 2017-11-07 | 贾新奎 | A kind of solid-state flue gas processing device for Chemical Engineering Laboratory |
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| CN106110870B (en) | 2018-07-13 |
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