CN106110870B - 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 PDF

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Publication number
CN106110870B
CN106110870B CN201610785437.XA CN201610785437A CN106110870B CN 106110870 B CN106110870 B CN 106110870B CN 201610785437 A CN201610785437 A CN 201610785437A CN 106110870 B CN106110870 B CN 106110870B
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coal
desulfuration
ash bucket
dust removal
burning boiler
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CN106110870A (en
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方昱迪
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Suzhou Badger Co Ltd
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Suzhou Badger Co Ltd
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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
    • 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
    • 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
    • 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 pass through the sequentially connected waste heat recovery apparatus of pipeline, pulsed precipitron, dry chemical Catalytic processor, air-introduced machine and exhaust apparatus；The ash bucket that pulsed precipitron includes square casing, is installed below square casing is equipped with below ash bucket and receives grey vehicle；Square casing bottom opening, side wall are equipped with system controller and pneumatic indicator；Hopper bottom is equipped with dust outlet, and lateral wall is equipped with vibrating device, is internally provided with high charge level detection device；Dry chemical Catalytic processor includes hollow housing, catalytic treatment box, atomizer；Catalytic treatment box is located inside hollow housing；It is connected to atomizer above catalytic treatment box；It is connected to by mist pipe between atomizer and atomizer；Adsorbent is set in catalytic treatment box；Adsorbent includes quick lime.After the present invention is handled, indices are all fully met coal-fired flue-gas《Emission standard of air pollutants for boilers (GB 13,271 2014).

Description

Coal-burning boiler dry dust removal and system for desulfuration and denitration
Technical field
The invention belongs to field of environment protection equipment, and in particular to a kind of coal-burning boiler dry dust removal and system for desulfuration and denitration, it can For coal burning boiler dedusting of burning.
Background technology
With the development of modern industry, the influence getting worse caused by health of the dust to environment and the mankind, effectively Dust pollution is administered, 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 flourishes, and purifies the living environment of the mankind, it has also become proprietary common recognition.In order to safeguard production environment cleaning, It must clear up in time by the place of dust pollution.Deduster, especially sack cleaner are widely used in metallurgy, building materials, machine In the dust separation of various industrial and mining enterprises' non-fiber industrial dust such as tool, chemical industry, mine and the recycling of material.But it is existing Sack cleaner, the drawbacks such as that there is ash-removal effects is undesirable, purification efficiency is low, life-span of the filter bag is short, maintenance load is big, seriously Normal, the effective use of filter are affected, so, there is an urgent need for the structures to existing filter to be improved so that deashing side Just, efficient, it needs using blowning installation to filter deashing, to improve dust removing effects.
Burn coal burning boiler, is designed as burning coal, foundation《Emission standard of air pollutants for boilers (GB 13271-2014), To meet 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 process system.China handles the economic strength and technology of the three wastes presently, there are there are many enterprise of small scale It is horizontal relatively low, prodigious harm is caused to environment；The world today faces asks financial crisis and the severe challenge of climate change entirely, must Scientific and technical innovation development low-carbon economy must be continued to rely upon, realizes that environmental economy is advanced altogether.
Invention content
The object of the present invention is to provide a kind of coal-burning boiler dry dust removal and system for desulfuration and denitration, and for burning, coal burning boiler removes Dirt is good for the environment development.
To achieve the above object of the invention, the technical solution adopted by 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； The waste heat recovery apparatus, pulsed precipitron, dry chemical Catalytic processor, air-introduced machine and exhaust apparatus by pipeline according to Secondary connection；The exhaust apparatus is equipped with inspection socket；The pulsed precipitron includes square casing, ash bucket；The ash bucket installation Below square casing；The square casing bottom opening；The ash bucket top surface opening；The square casing is connected to ash bucket； Filter is installed inside the square casing；The hopper bottom is equipped with dust outlet；The dry chemical Catalytic processor packet Include hollow housing, catalytic treatment box, atomizer；The catalytic treatment box is located inside hollow housing；On the catalytic treatment box Side is connected to atomizer；It is connected to by mist pipe between the atomizer and atomizer；The hollow housing side wall be equipped with into Air hose；On the hollow housing, the side wall opposite with the side wall equipped with blast pipe is equipped with discharge pipe；The air-introduced machine is filled with exhaust Pipeline between setting is equipped with non-return air door；Adsorbent is set in the catalytic treatment box；The adsorbent includes quick lime.
In the present invention, filter is generally filter bag, including supporter and the bag ontology for wrapping up supporter, can be existing Non-woven fabrics filter bag, fabric filter bag, it is generally circular；Supporter generally uses elastic piston ring, can form tight type contact, keep away Exempt from smoke spillage；Filter bag upper end is mounted on filter support seat, and lower end is mounted on filter lower wall, can connect filter Upper lower burrs.There are six side walls for square casing tool, and bottom wall is hatch frame, is connected to ash bucket, in four side walls, at symmetrical two Air inlet and outlet air are respectively set on side wall, is combined with pipeline and is run for air-flow；Another two side wall generally seals；Air is by shell Air inlet enter, go out from outlet air, centre pass through filter, dust by filter obstruct adsorb, to reach flue gas ash removal Effect；Using the shell of square structure, be on the one hand conducive to the installation of the components such as filter, mainly avoid gas leakage, that is, prevent Partial fume is directly gone out from air outlet without filter.Since coal-fired flue-gas is awfully hot, flue-gas temperature is excessively high in order to prevent And damage filter, the present invention be equipped on the pipeline between waste heat recovery apparatus and pulsed precipitron it is pneumatic mend wind air door with And temperature sensor, temperature probe are located in pipeline, are specifically installed on which surface side wall does not limit then, determines according to actual place It is fixed, inside smoke temperature can be monitored, temperature sensor is commercial products.
Adsorbent of the present invention is prepared as, and by nonylphenol polyoxyethylene ether and sodium silicoaluminate, disodium hydrogen phosphate, is gathered Ureaformaldehyde, butyl acrylate mixing, 120 DEG C of processing obtain glutinous fluid for 65 minutes；By five nitric hydrate bismuths, nickel oxide, hexadecane The different sour alkynes propyl ester of base trimethyl ammonium chloride, diethyl phosphite, bromo fourth, polyvinyl butyral mixing；Ball mill ball milling 4h Afterwards be placed in Muffle furnace in, 700~800 DEG C sintering 45 minutes after 1100~1200 DEG C be sintered 15 minutes；Then after natural cooling To porous material；Porous material is immersed in the methanol containing azobisisoheptonitrile 5 minutes；Then drying obtains solid；It will consolidate Body obtains powder after crushing；Powder is added to the water, is stirred 20 minutes；Then it is added and sticks fluid, bis- (2,3- epoxies basic rings penta Base) ether and the bromo- beta naphthals of 1-, chitosan, ethyl alcohol, 150 DEG C are reacted 1 hour；Last dry reaction liquid obtains solid, with addition of life Dry type pressure ball obtains adsorbent after lime.Nonylphenol polyoxyethylene ether, sodium silicoaluminate, 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 The different sour alkynes propyl ester of sour bismuth, nickel oxide, hexadecyltrimethylammonium chloride, diethyl phosphite, bromo fourth, polyvinyl butyral 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 Expect, the mass ratio of azobisisoheptonitrile is（50~56）∶1；Powder, glutinous fluid, bis- (2,3- epoxies cyclopentyl) ethers, 1- are bromo- Beta naphthal, chitosan mass ratio be（0.2~0.22）∶1∶（0.3~0.35）∶（0.2~0.21）∶（0.1~0.11）.Gu Body, quick lime mass ratio be（0.7~0.8）∶1.There is good absorption and reactivity, cigarette to each component of smoke mixture After aspiration enters catalytic treatment box, chemosorbent will generate chemical adsorption phenomena with it, and make tail end discharge exhaust gas nitrogen, sulphur Compound concentration is less than national standard, to meet rules and regulations.The chemosorbent of adsorption saturation under system not shutdown status, then Its automatic reduction can be extended into lasting use through water atomization catalyst reduction system；Chemically adsorbent at branch and target gas Body produces molecular link, including molecule and intermolecular Van der Waals force, and simple compound is formed, further reach complete suction Attached, object gas can not run away completely, be stuck in sorbent molecule pore structure.
In the present invention, position relationship is all virtual condition；Shell, ash bucket are all hollow-core construction, according to actual installation position, ash Bucket is installed below shell, and ash bucket top surface size and housing bottom surface are in the same size, are all hatch frame, to enclosure interior and ash The internal connection of bucket；The dust that the filter bag of enclosure interior installation is shaken off as a result, all can directly fall to ash bucket, and there is no fall Grey dead angle is collected using the dust outlet below ash bucket and is excluded, and can be equipped with below ash bucket and receive grey vehicle, be conducive to transport.Side Shape housing sidewall is equipped with system controller and pneumatic indicator, and system controller is existing product, can be run with control device, Pneumatic indicator can be pressure gauge, monitor housing pressure, ensure safety, and combined with pneumatic wind air door of mending, can control The gas pressure of whole process reaches best filtration treatment effect.
In the present invention, filter is vertically-mounted inside housings, forms smoke filtration layer, the installation number of filter, row Row mode can be selected according to shell size, filter size and flue gas flow, avoids smoke spillage.
In the present invention, catalytic treatment box is the storage place of dry chemical adsorbent, forms side wall by porous material and is used for Flue gas circulates；Air inlet and outlet air is respectively set in the symmetrical two side walls of hollow housing, is combined with pipeline and is run for air-flow； Another two side wall generally seals；Air is entered by the air inlet of shell, is gone out from outlet air, and catalytic treatment box is passed through in centre, and chemistry is inhaled Attached dose will generate chemical reaction, chemisorption phenomenon with flue gas, and flue gas is by catalytic treatment, to reach the effect of flue gas desulfurization and denitrification Fruit, exhaust gas nitrogen is discharged in tail end, sulfide concentration is less than national standard, to meet rules and regulations.The chemosorbent of adsorption saturation Under system not shutdown status, then through water atomization catalyst reduction system automatic reduction, and lasting use can be extended.
It in the present invention, is connected to by mist pipe between atomizer and atomizer, to which 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 gives birth on its surface At solid catalysis product fall off, leak out new interface so that it can recycle；In the case that it is non-stop-machine can interval into Row atomization reduction, atomization air flow, which can provide catalytic effect, improves desulfurization off sulfide effect, and thermal current can take away the seldom water mist of surplus； Restoring operation can also be carried out under shutdown status, is entered the wind from blast pipe, and discharge pipe goes out, and achievees the effect that remove water mist, preferably Blast pipe is located at the cornerwise both ends of hollow housing with discharge pipe, and diagonal positions can reach best defogging effect；Air inlet Pipe, discharge pipe are equipped with valve, controllable switch；Hollow housing side wall is equipped with pneumatic indicator, such as pressure gauge, monitors shell pressure Power ensures safety, and is combined with pneumatic wind air door of mending, and can control the gas pressure of whole process, reach best catalysis Treatment effect.Catalytic treatment box is vertically-mounted inside housings, forms flue gas adsorption layer, and installation number, arrangement mode can be with It is selected according to shell size and flue gas flow, avoid smoke spillage.
The present invention is equipped with vibrating device in ash bucket lateral wall, can tap or rapping ash bucket, de- to be conducive to dust It falls, is more easy to be discharged from dust outlet；Ash bucket is internally provided with high charge level detection device, avoids dust accumulation.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 installation condition, ash The upper bottom surface of bucket is consistent with shell bottom surface；In order to fall grey smooth, no backup, the incline of truncated rectangular pyramids and the angle of upper bottom surface are 65 ~85 degree.Exhaust apparatus is chimney, and tail-gas quality detection can be carried out by inspection socket.
Since above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
1. present invention firstly discloses a kind of coal-burning boiler dry dust removal and system for desulfuration and denitration, it is exclusively used in burning coal burning boiler Dedusting, creatively in chemical catalysis processor, original system is gone back in setting atomization, can not shut down the reduction for realizing chemosorbent, It also can shutdown operation；To extend chemically adsorbent usage time, the water atomization catalyst reduction system of design is transported in coal-burning boiler In turning, control, which sprays into, is atomized a small amount of aqueous vapor, generates chemical catalysis with chemosorbent, and chemosorbent is made to restore, to extend Adsorbent saturation replacing construction reaches energy saving more environmentally friendly concept.
2. coal-burning boiler dry dust removal disclosed by the invention and system for desulfuration and denitration, structure composition is reasonable, and dismounting is easy, It is applicable in a variety of components；Increase waste heat recovery apparatus economizer at boiler rear to reduce heat energy loss, fills chemistry after deduster and inhale Attached dose of purification facility handles nitrogen oxides and sulfide harmful substance；Recycling is dusted to flue gas using bag filter, is reached PM2.5 discharge standards finally make final purification air-treatment with chemosorbent, and water atomization is installed additional also in chemical catalysis processor Original system can extend chemosorbent usage time to reduce waste, chemisorption to ensure to reach emission regulation demands Agent handles Litter for the usable burial mode of alkalinity will not cause secondary public hazards；Solve existing water curtain sprinkling system and SCR Metal solvent sprays the defect of ammonia catalysis system processing emission effect difference；Service life of equipment is long simultaneously, is suitable for high temperature, acid-base property The dust removal process of coal-fired flue-gas.
Description of the drawings
Fig. 1 is the structural schematic diagram 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, mist Change nozzle；15, atomizer；16, discharge pipe；17, pneumatic indicator；2, pulsed precipitron；21, square casing；22, ash bucket； 221, dust outlet；222, vibrating device；23, grey vehicle is received；24, system controller；25, pneumatic indicator；26, filter；3、 Air-introduced 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 sensing Device.
Specific implementation mode
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Embodiment one
Referring to attached drawing 1, coal-burning boiler dry dust removal and system for desulfuration and denitration include dry chemical Catalytic processor 1, pulse Formula precipitron 2, air-introduced machine 3, waste heat recovery apparatus 4 and exhaust apparatus 5；Waste heat recovery apparatus, pulsed precipitron, dry type Catalytic processor, air-introduced machine and exhaust apparatus is learned to be sequentially connected by pipeline；Waste heat recovery apparatus is connected on fire coal boiler fume Outlet；Exhaust apparatus is chimney, is equipped with inspection socket 51；Pulsed precipitron includes square casing 21, is installed under square casing The ash bucket 22 of side, ash bucket lower section, which is equipped with, receives grey vehicle 23；Ash bucket top surface is open, and square casing bottom opening is connected to ash bucket；It is rectangular Housing sidewall is equipped with system controller 24 and pneumatic indicator 25, inside installation filter 26；Ash bucket is truncated rectangular pyramids structure, side The angle of rib and upper bottom surface is 85 degree；Hopper bottom is equipped with dust outlet 221, and lateral wall is equipped with vibrating device 222, is internally provided with High charge level detection device；Dry chemical Catalytic processor includes hollow housing 11, catalytic treatment box 12, atomizer 15；At catalysis Reason box is located inside hollow housing；It is connected to atomizer 14 above catalytic treatment box；Pass through mist between atomizer and atomizer Change pipe connection；Hollow housing side wall is equipped with blast pipe 13, and the side wall opposite with the side wall equipped with blast pipe is equipped with discharge pipe 16；In Ghost body sidewall is equipped with pneumatic indicator 17, and blast pipe is located at the cornerwise both ends of hollow housing with discharge pipe；Air-introduced machine and row Pipeline between device of air is equipped with non-return air door 6；Pipeline between waste heat recovery apparatus and pulsed precipitron is equipped with gas It is dynamic to mend wind air door 7 and temperature sensor 8；Adsorbent is set in the catalytic treatment box；In figure at same parts mark one, often Rule connector, mounting plate do not mark, and arrow is flow of flue gas direction.
The present embodiment adsorbent is prepared as, by nonylphenol polyoxyethylene ether and sodium silicoaluminate, disodium hydrogen phosphate, Uramit, butyl acrylate mixing, 120 DEG C of processing obtain glutinous fluid for 65 minutes；By five nitric hydrate bismuths, nickel oxide, 16 The different sour alkynes propyl ester of alkyl trimethyl ammonium chloride, diethyl phosphite, bromo fourth, polyvinyl butyral mixing；Ball mill ball milling After 4h be placed in Muffle furnace in, 700~800 DEG C sintering 45 minutes after 1100~1200 DEG C be sintered 15 minutes；Then after natural cooling Obtain porous material；Porous material is immersed in the methanol containing azobisisoheptonitrile 5 minutes；Then drying obtains solid；It will Solid obtains powder after crushing；Powder is added to the water, is stirred 20 minutes；Then it is added and sticks fluid, bis- (2,3- epoxies basic rings penta Base) ether and the bromo- beta naphthals of 1-, chitosan, ethyl alcohol, 150 DEG C are reacted 1 hour；Last dry reaction liquid obtains solid, with addition of life Dry type pressure ball obtains adsorbent after lime.Nonylphenol polyoxyethylene ether, sodium silicoaluminate, 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 The different sour alkynes propyl ester of sour bismuth, nickel oxide, hexadecyltrimethylammonium chloride, diethyl phosphite, bromo fourth, polyvinyl butyral 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 Expect, the mass ratio of azobisisoheptonitrile is（50~56）∶1；Powder, glutinous fluid, bis- (2,3- epoxies cyclopentyl) ethers, 1- are bromo- Beta naphthal, chitosan mass ratio be（0.2~0.22）∶1∶（0.3~0.35）∶（0.2~0.21）∶（0.1~0.11）；Gu Body, quick lime mass ratio be（0.7~0.8）∶1.
Embodiment two
Coal-burning boiler dry dust removal and system for desulfuration and denitration include by the sequentially connected waste heat recovery apparatus of pipeline, pulse Formula precipitron, dry chemical Catalytic processor, air-introduced machine and exhaust apparatus, pipeline lateral wall are equipped with insulating layer, save the same of heat When avoid heat injury；Waste heat recovery apparatus is connected on fire coal boiler fume outlet；Exhaust apparatus is chimney, is equipped with and checks Mouthful；The ash bucket that pulsed precipitron includes square casing, is installed below square casing is equipped with below ash bucket and receives grey vehicle；It is rectangular Housing bottom surface is open, and side wall is equipped with system controller and pneumatic indicator；Ash bucket top surface is open, and is connected to ash bucket；Rectangular shell Internal portion is installed by filter；Ash bucket is truncated rectangular pyramids structure, and the angle of incline and upper bottom surface is 65 degree；Hopper bottom goes out equipped with dust Mouthful, lateral wall is equipped with vibrating device, is internally provided with high charge level detection device；Dry chemical Catalytic processor include hollow housing, Catalytic treatment box, atomizer；Catalytic treatment box is located inside hollow housing；It is connected to atomizer above catalytic treatment box；Atomization It is connected to by mist pipe between nozzle and atomizer；Hollow housing side wall is equipped with blast pipe, opposite with the side wall equipped with blast pipe Side wall be equipped with discharge pipe；Hollow housing side wall is equipped with pneumatic indicator, and blast pipe is located at hollow housing diagonal line with discharge pipe Both ends；Pipeline between air-introduced machine and exhaust apparatus is equipped with non-return air door；Waste heat recovery apparatus and pulsed precipitron it Between pipeline be equipped with and pneumatic mend wind air door and temperature sensor；Adsorbent is set in the catalytic treatment box；The absorption Agent is the adsorbent of embodiment one.
Coal-fired flue-gas（165-200 degree）After heat exchange, enter enclosure interior from square casing air intake, by 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 are discharged from air-introduced machine by chimney；Flue-gas temperature can be prevented excessively high according to temperature sensor and damage filter, root According to the prompting of high charge level detection device, the vibrating device of ash bucket lateral wall is opened, acceleration falls ash；Going back original system using atomization can be with Catalytic chemistry adsorption reaction, increases adsorption effect, and indices are all fully met《Emission standard of air pollutants for boilers (GB 13271-2014)。

Claims (9)

1. a kind of coal-burning boiler dry dust removal and system for desulfuration and denitration, including waste heat recovery apparatus, pulsed precipitron, dry type Learn Catalytic processor, air-introduced machine and exhaust apparatus；The waste heat recovery apparatus, pulsed precipitron, at dry chemical catalysis Reason device, air-introduced machine and exhaust apparatus are sequentially connected by pipeline；The exhaust apparatus is equipped with inspection socket；The pulsed dust Machine includes square casing, ash bucket；The ash bucket is installed below square casing；The square casing bottom opening；The ash bucket Top surface is open；The square casing is connected to ash bucket；Filter is installed inside the square casing；The hopper bottom is equipped with powder Dirt exports；The dry chemical Catalytic processor includes hollow housing, catalytic treatment box, atomizer；Catalytic treatment box position Inside hollow housing；It is connected to atomizer above the catalytic treatment box；Pass through mist between the atomizer and atomizer Change pipe connection；The hollow housing side wall is equipped with blast pipe；On the hollow housing, the side opposite with the side wall equipped with blast pipe Wall is equipped with discharge pipe；Pipeline between the air-introduced machine and exhaust apparatus is equipped with non-return air door；It is set in the catalytic treatment box Set adsorbent；The adsorbent includes quick lime；The adsorbent is prepared as, by nonylphenol polyoxyethylene ether and aluminosilicate Sodium, disodium hydrogen phosphate, uramit, butyl acrylate mixing, 120 DEG C of processing obtain glutinous fluid for 65 minutes；By five water Close the different sour alkynes propyl ester of bismuth nitrate, nickel oxide, hexadecyltrimethylammonium chloride, diethyl phosphite, bromo fourth, polyvinyl alcohol contracting Butyraldehyde mixes；After ball mill ball milling 4h be placed in Muffle furnace in, 700~800 DEG C sintering 45 minutes after 1100~1200 DEG C sintering 15 Minute；Then porous material is obtained after natural cooling；Porous material is immersed in the methanol containing azobisisoheptonitrile 5 minutes； Then drying obtains solid；Powder is obtained after solid is crushed；Powder is added to the water, is stirred 20 minutes；Then glutinous stream is added Body, bis- (2,3- epoxy cyclopentyl) ethers and the bromo- beta naphthals of 1-, chitosan, ethyl alcohol, 150 DEG C are reacted 1 hour；Finally dry Reaction solution obtains solid, and adsorbent is obtained with addition of dry type pressure ball after quick lime.
2. coal-burning boiler dry dust removal and system for desulfuration and denitration according to claim 1, it is characterised in that：The exhaust apparatus For chimney.
3. coal-burning boiler dry dust removal and system for desulfuration and denitration according to claim 1, it is characterised in that：Below the ash bucket Equipped with the grey vehicle of receipts；The ash bucket lateral wall is equipped with vibrating device；The ash bucket is internally provided with high charge level detection device.
4. coal-burning boiler dry dust removal and system for desulfuration and denitration according to claim 1, it is characterised in that：The square casing Side wall is equipped with system controller and pneumatic indicator.
5. coal-burning boiler dry dust removal and system for desulfuration and denitration according to claim 1, it is characterised in that：The hollow housing Side wall is equipped with pneumatic indicator；The blast pipe is located at the cornerwise both ends of hollow housing with discharge pipe.
6. coal-burning boiler dry dust removal and system for desulfuration and denitration according to claim 1, it is characterised in that：The waste heat recovery Pipeline between equipment and pulsed precipitron is equipped with pneumatic benefit wind air door and temperature sensor.
7. coal-burning boiler dry dust removal and system for desulfuration and denitration according to claim 1, it is characterised in that：The ash bucket is four Terrace with edge structure；The incline of the truncated rectangular pyramids and the angle of upper bottom surface are 65~85 degree.
8. coal-burning boiler dry dust removal and system for desulfuration and denitration according to claim 1, it is characterised in that：The nonyl phenol is poly- Ethylene oxide ether, sodium silicoaluminate, disodium hydrogen phosphate, uramit, butyl acrylate mass ratio be 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, The different sour alkynes propyl ester of diethyl phosphite, bromo fourth, polyvinyl butyral 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, azobisisoheptonitrile mass ratio be（50~56） ∶1；Powder, glutinous fluid, bis- (2,3- epoxies cyclopentyl) ethers, the bromo- beta naphthals of 1-, chitosan mass ratio be（0.2~0.22） ∶1∶（0.3~0.35）∶（0.2~0.21）∶（0.1~0.11）.
9. coal-burning boiler dry dust removal and system for desulfuration and denitration according to claim 1, it is characterised in that：Solid, quick lime Mass ratio be（0.7~0.8）∶1.
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