CN106215693B - Coal-fired flue-gas processing dry chemical Catalytic processor - Google Patents
Coal-fired flue-gas processing dry chemical Catalytic processor Download PDFInfo
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- CN106215693B CN106215693B CN201610781456.5A CN201610781456A CN106215693B CN 106215693 B CN106215693 B CN 106215693B CN 201610781456 A CN201610781456 A CN 201610781456A CN 106215693 B CN106215693 B CN 106215693B
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- coal
- fired flue
- gas processing
- dry chemical
- hollow housing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8637—Simultaneously removing sulfur oxides and 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/04—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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- 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
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- 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
- B01D2253/10—Inorganic adsorbents
- B01D2253/112—Metals or metal compounds not provided for in B01D2253/104 or B01D2253/106
- B01D2253/1124—Metal oxides
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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
Abstract
The invention discloses coal-fired flue-gas processing dry chemical Catalytic processor, including hollow housing, catalytic treatment box, atomizer；Catalytic treatment box is located inside hollow housing；Atomizer is connected to above catalytic treatment box；It is connected between atomizer and atomizer by mist pipe；Setting adsorbent 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
Technical field
The invention belongs to field of environment protection equipment, and in particular to a kind of coal-fired flue-gas processing dry chemical Catalytic processor,
It can be used for coal burning boiler dedusting of burning.
Background technology
With the development of modern industry, dust is to the influence getting worse caused by the health of 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.It is but existing
Sack cleaner, there is 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
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 it is, 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, very big 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-fired flue-gas processing dry chemical Catalytic processor, for the coal burning boiler that burns
Dedusting 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-fired flue-gas processing dry chemical
Catalytic processor, including hollow housing, catalytic treatment box, atomizer；The catalytic treatment box is located inside hollow housing；It is described
Atomizer is connected to above catalytic treatment box；It is connected between the atomizer and atomizer by mist pipe；The hollow shell
Body sidewall is equipped with blast pipe；On the hollow housing, the side wall opposite with the side wall equipped with blast pipe is equipped with discharge pipe；In described
Empty capsid is equipped with smoke inlet and offgas outlet；Setting adsorbent in the catalytic treatment box；The adsorbent includes quick lime.
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 be solid
Body obtains powder after crushing；Powder is added to the water, is stirred 20 minutes；Then glutinous fluid, bis- (2,3- epoxies basic rings penta are added in
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
Through water atomization catalyst reduction system, by its automatic reduction, lasting use can be extended；Chemically adsorbent into branch and target gas
Body produces molecular link, comprising molecule and intermolecular Van der Waals force and forms simple compound, further reaches complete suction
Attached, object gas can not run away completely, be stuck in sorbent molecule pore structure.
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；Setting air inlet and outlet air respectively, is combined with pipeline and is run for air-flow in the symmetrical two side walls of hollow housing；
Another two side wall generally seals；Air is entered by the air inlet of housing, is gone out from outlet air, and centre is inhaled by catalytic treatment box, chemistry
Attached dose will generate chemical reaction, chemisorbed phenomenon with flue gas, and flue gas is by catalytic treatment, so as to reach the effect of flue gas desulfurization and denitrification
Fruit, tail end discharge exhaust gas nitrogen, sulfide concentration are 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 between atomizer and atomizer by mist pipe, so as to which the steam after being atomized 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
Into solid catalysis product come 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, 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 housing pressure
Power ensures safety, can control the gas pressure of whole process, reach best catalytic treatment effect.Catalytic treatment box is vertical
Installation inside housings, forms flue gas adsorption layer, installation number, arrangement mode can be according to housing size and flue gas streams
Amount is selected, avoids smoke spillage.
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-fired flue-gas processing dry chemical Catalytic processor, it is exclusively used in burning coal pot
Stove dedusting, creatively in chemical catalysis processor, original system is gone back in setting atomization, can not be shut down and be realized going back for chemosorbent
Original, also can shutdown operation；To extend chemically adsorbent usage time, the water atomization catalyst reduction system of design is in coal-burning boiler
In operating, control, which sprays into, is atomized a small amount of aqueous vapor, chemical catalysis is generated, and restore chemosorbent with chemosorbent, to prolong
Long adsorption material saturation replacing construction reaches energy saving more environmentally friendly concept.
2. coal-fired flue-gas processing dry chemical Catalytic processor disclosed by the invention, structure composition is reasonable, and dismounting is held
Easily, a variety of components are applicable in；Flue gas is packed into chemosorbent purification facility, handles nitrogen oxides and sulfide harmful substance, reaches
PM2.5 discharge standards make final purification air-treatment with chemisorbed, and water atomization also original system is installed additional in chemical catalysis processor
To ensure to reach emission regulation demands, and chemisorbed material usage time can be extended to reduce waste, chemosorbent is alkali
Property, which burial mode can be used to handle Litter, will not cause secondary public hazards；It solves existing water curtain sprinkling system and SCR metals touches
Matchmaker sprays the defects of ammonia catalysis system processing emission effect is poor；Service life of equipment is long simultaneously, suitable for high temperature, acid-base property fire coal cigarette
The dust removal process of gas.
Description of the drawings
Fig. 1 is the structure diagram of coal-fired flue-gas processing dry chemical Catalytic processor；
Wherein, 1, dry chemical Catalytic processor；11st, hollow housing；12nd, catalytic treatment box；13rd, blast pipe；14th, mist
Change nozzle；15th, atomizer；16th, discharge pipe；17th, pneumatic indicator；18th, smoke inlet；19th, offgas outlet.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Embodiment one
Referring to attached drawing 1, coal-fired flue-gas processing includes hollow housing 11, catalytic treatment box with dry chemical Catalytic processor 1
12nd, atomizer 15；Catalytic treatment box is located inside hollow housing；Atomizer 14 is connected to above catalytic treatment box；Atomizer
It is connected between atomizer by mist pipe；Hollow housing side wall is equipped with blast pipe 13, opposite with the side wall equipped with blast pipe
Side wall is equipped with discharge pipe 16；Hollow housing side wall is equipped with pneumatic indicator 17；Hollow housing goes out equipped with smoke inlet 18 with tail gas
Mouth 19；Blast pipe is located at the cornerwise both ends of hollow housing with discharge pipe；Setting adsorbent in catalytic treatment box；Identical portions in figure
At part mark one, conventional connector, installing plate do not mark.
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 glutinous fluid, bis- (2,3- epoxies basic rings penta are added in
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.
Coal-fired flue-gas（165-200 degree）After heat exchange, enter dry type Catalytic processor from smoke inlet, in chemisorbed
The lower desulphurization denitration processing of agent effect, tail gas are discharged from offgas outlet；Using atomization go back original system can with catalytic chemistry adsorption reaction,
Increase adsorption effect, indices are all fully met《Emission standard of air pollutants for boilers (GB 13271-2014).
Claims (7)
1. a kind of coal-fired flue-gas processing dry chemical Catalytic processor, including hollow housing, catalytic treatment box, atomizer；Institute
Catalytic treatment box is stated to be located inside hollow housing；Atomizer is connected to above the catalytic treatment box；The atomizer and mist
It is connected between change device by mist pipe；The hollow housing side wall is equipped with blast pipe；On the hollow housing, and equipped with blast pipe
The opposite side wall of side wall be equipped with discharge pipe；The hollow housing is equipped with smoke inlet and offgas outlet；The catalytic treatment box
Interior setting adsorbent；The adsorbent includes quick lime；The adsorbent is prepared as, by nonylphenol polyoxyethylene ether and sial
Sour sodium, disodium hydrogen phosphate, uramit, butyl acrylate mixing, 120 DEG C of processing obtain glutinous fluid for 65 minutes；By five
The different sour alkynes propyl ester of nitric hydrate bismuth, nickel oxide, hexadecyltrimethylammonium chloride, diethyl phosphite, bromo fourth, polyvinyl alcohol
Butyral 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 minutes；Then porous material is obtained after natural cooling；Porous material is immersed in the methanol containing azobisisoheptonitrile 5 points
Clock；Then drying obtains solid；Powder is obtained after solid is crushed；Powder is added to the water, is stirred 20 minutes；Then it adds in glutinous
Fluid, bis- (2,3- epoxy cyclopentyl) ethers and the bromo- beta naphthals of 1-, chitosan, ethyl alcohol, 150 DEG C are reacted 1 hour；Finally do
Dry reaction solution obtains solid, and adsorbent is obtained with addition of dry type pressure ball after quick lime.
2. coal-fired flue-gas processing dry chemical Catalytic processor according to claim 1, it is characterised in that：The nonyl phenol
Polyoxyethylene 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）.
3. coal-fired flue-gas processing dry chemical Catalytic processor according to claim 1, it is characterised in that：Five hydration
The different sour alkynes propyl ester of bismuth nitrate, nickel oxide, hexadecyltrimethylammonium chloride, diethyl phosphite, bromo fourth, polyvinyl alcohol contracting fourth
The mass ratio of aldehyde is（0.5~0.6）∶（0.1~0.12）∶（0.3~0.35）∶（0.5~0.7）∶（0.25~0.27）∶1.
4. coal-fired flue-gas processing dry chemical Catalytic processor according to claim 1, it is characterised in that：The porous material
Expect, the mass ratio of azobisisoheptonitrile is（50~56）∶1.
5. coal-fired flue-gas processing dry chemical Catalytic processor according to claim 1, it is characterised in that：The 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）.
6. coal-fired flue-gas processing dry chemical Catalytic processor according to claim 1, it is characterised in that：The solid,
The mass ratio of quick lime is（0.7~0.8）∶1.
7. coal-fired flue-gas processing dry chemical Catalytic processor according to claim 1, it is characterised in that：The hollow shell
Body sidewall is equipped with pneumatic indicator；The blast pipe is located at the cornerwise both ends of hollow housing with discharge pipe.
Priority Applications (1)
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| CN201610781456.5A CN106215693B (en) | 2016-08-31 | 2016-08-31 | Coal-fired flue-gas processing dry chemical Catalytic processor |
Applications Claiming Priority (1)
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| CN201610781456.5A CN106215693B (en) | 2016-08-31 | 2016-08-31 | Coal-fired flue-gas processing dry chemical Catalytic processor |
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| CN106215693B true CN106215693B (en) | 2018-06-26 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5511020A (en) * | 1978-07-07 | 1980-01-25 | Kobe Steel Ltd | Denitration method of combustion exhaust gas |
| JPS5864117A (en) * | 1981-10-12 | 1983-04-16 | Hitachi Ltd | Dry stack-gas desulfurization process |
| CN202224063U (en) * | 2011-09-21 | 2012-05-23 | 西安交通大学 | Online catalyst cleaning device |
| CN103406006A (en) * | 2013-08-30 | 2013-11-27 | 安徽省元琛环保科技有限公司 | SCR (Selective Catalytic Reduction) denitration device for NOx control of rotary cement kiln |
| CN103877856B (en) * | 2014-03-27 | 2016-01-06 | 中冶焦耐工程技术有限公司 | A kind of method of coke oven flue waste gas heat utilization and purification |
| CN204973589U (en) * | 2015-09-25 | 2016-01-20 | 山东培华环保科技有限公司 | Sack dust removal catalytic oxidation efficient handling of waste gas equipment |
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