CN206350990U - One kind calcining flue gas desulfurization dust-removal system - Google Patents
One kind calcining flue gas desulfurization dust-removal system Download PDFInfo
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- CN206350990U CN206350990U CN201621464754.3U CN201621464754U CN206350990U CN 206350990 U CN206350990 U CN 206350990U CN 201621464754 U CN201621464754 U CN 201621464754U CN 206350990 U CN206350990 U CN 206350990U
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- flue gas
- section
- desulfurization
- dust
- removal system
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- 239000003546 flue gas Substances 0.000 title claims abstract description 65
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 45
- 230000023556 desulfurization Effects 0.000 title claims abstract description 45
- 238000001354 calcination Methods 0.000 title claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000003517 fume Substances 0.000 claims abstract description 11
- 239000000428 dust Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 19
- 238000006386 neutralization reaction Methods 0.000 claims description 14
- 238000001556 precipitation Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- 239000002918 waste heat Substances 0.000 claims description 7
- 238000000151 deposition Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000005868 electrolysis reaction Methods 0.000 abstract description 2
- 239000010881 fly ash Substances 0.000 abstract description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
This new one kind that discloses calcines flue gas desulfurization dust-removal system, including denitration section, dedusting section, desulfurization section, absorbing liquid processing section, water tank, filter-pressing device and fume extractor.Originally new beneficial effect is：Set reasonable, it is possible to achieve quick denitration, high-efficiency desulfurization and the demisting dedusting of flue gas, shorten flow, reduce Process configuration.For pollutant concentration it is high the characteristics of, can effectively remove the SO in flue gas2, nitrogen oxides and dust, realize that environment protection standard is discharged.The system had both been suitable for the desulfurization of newly-built flue gas system, also was adapted for existing cleaning system desulfurizing fly ash；Both it had been suitable for the regional desulfurization of moist, high temperature, and arid, cold district electrolysis flue gas desulfurization had been also suitable for, with stronger applicability.
Description
Technical field
This new one kind that is related to calcines flue gas desulfurization dust-removal system, belongs to environmentally friendly protection technique and apparatus field.
Background technology
In carbon industry, because the petroleum coke of high-quality to be obtained is, it is necessary to using calcining furnace or pot type burner high-temperature calcination
Method remove fugitive constituent therein, reduction S contents and other impurity.So in calcining furnace（Or pot type burner）Outlet can be released
Release the flue gas containing higher concentration sulfur dioxide, nitrogen oxides and fugitive constituent dust.According to SO in the general flue gas of calculating2's
Concentration is 2000-6500mg/Nm3, nitrous oxides concentration is typically in 150-400 mg/Nm3。
According to《Aluminum i ndustry pollutant emission standard》（GB25465-2010）And promulgate for 2014《Aluminum i ndustry pollutant is arranged
Put standard》Amendment, it is desirable in key area by SO2Concentration control in 100 mg/Nm3Hereinafter, nitrous oxides concentration control exists
100 mg/Nm3Hereinafter, particulate matter control is in 10 mg/Nm3Below, it is therefore desirable to dirt at desulphurization denitration is carried out to calcining flue gas comprehensive
Conjunction is handled.
Calcining flue gas have exhaust gas volumn it is small, containing the features such as sulphur concentration is high, concentration containing nitre is low, particle size is small, therefore adopt
The various pollutants in flue gas, and desulfurization not only can not be effectively removed with traditional Limestone-gypsum Wet Flue Gas Desulfurization Process composite technology
System footprint area is big, system operation whole efficiency is relatively low, operating cost is high.Therefore the characteristics of needing for calcining flue gas is developed
Go out efficient flue gas desulfurization, denitration, dedusting integrated approach and equipment.
Utility model content
In order to overcome drawbacks described above, this new one kind that provides calcines flue gas desulfurization dust-removal system.
To achieve these goals, this new technical scheme is：One kind calcining flue gas desulfurization dust-removal system, including denitration
Section, dedusting section, desulfurization section, absorbing liquid processing section, water tank, filter-pressing device and fume extractor, the denitration section include denitrfying agent storage
Storehouse, denitrfying agent dosage bunker and denitrfying agent reflux pump, for carrying out denitration to smoke inlet injection denitrfying agent；Dedusting section includes dedusting
Device, for removing chalk dust removing；The desulfurization section includes hypergravity and rotates desulfurizing tower and demister, for carrying out desulfurization to flue gas；Institute
Neutralization precipitation pond, regulating reservoir, clarified filter tank and depositing reservoir that absorbing liquid processing section includes being sequentially connected are stated, for desulfurization section
Medicament used is precipitated, adjusted and recycled；The water tank is supplied denitrfying agent dosage bunker and clarified filter tank by water pump
Water；The filter-pressing device includes filter press, and for carrying out press filtration to the sediment slurry of absorbing liquid processing section, press filtration backwater passes through pipe
Road is delivered in neutralization precipitation pond, and the fume extractor is used for discharging last flue gas.
Further, as the improvement of above-mentioned technical proposal, waste-heat recovery device is provided between the denitration section and dedusting section
Or/and flue gas heat-exchange unit or/and cooling device.
Further, as a preferred embodiment, the waste-heat recovery device is waste heat boiler.
Further, improved as one kind of above-mentioned technical proposal, the high temperature fluid pipeline of the flue gas heat-exchange unit and denitration
Section connection, cryogenic fluid conduit is connected with desulfurization section outlet, and the backwater of the flue gas heat-exchange unit is connected with neutralization precipitation pond, described
The exhaust outlet of the cryogenic fluid conduit of flue gas heat-exchange unit is communicated by air-introduced machine with fume extractor.
Further, improved as one kind of above-mentioned technical proposal, the cooling device is that water drenches cooling tower, and water source comes from
Water tank.
Further, as a preferred embodiment, the deduster is sack cleaner or cyclone dust collectors.
Originally new beneficial effect is：Set reasonable, it is possible to achieve quick denitration, high-efficiency desulfurization and the demisting of flue gas are removed
Dirt, shortens flow, reduces Process configuration.For pollutant concentration it is high the characteristics of, can effectively remove the SO in flue gas2, nitrogen oxidation
Thing and dust, realize that environment protection standard is discharged.The system had both been suitable for the desulfurization of newly-built flue gas system, also was adapted for existing cleaning system
Desulfurizing fly ash；Both it had been suitable for the regional desulfurization of moist, high temperature, and arid, cold district electrolysis flue gas desulfurization had been also suitable for, with stronger
Applicability.
Brief description of the drawings
Fig. 1 is this new structural representation.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
At a kind of calcining flue gas desulfurization dust-removal system, including denitration section, dedusting section, desulfurization section, absorbing liquid as shown in Figure 1
Section, water tank 20, filter-pressing device and fume extractor 19 are managed, the denitration section includes denitrfying agent bunker 16, the and of denitrfying agent dosage bunker 17
Denitrfying agent reflux pump 18, for carrying out denitration to smoke inlet injection denitrfying agent；Dedusting section includes deduster 4, for going gumming
Dirt；The desulfurization section includes hypergravity and rotates desulfurizing tower 6 and demister 7, for carrying out desulfurization to flue gas；The absorbing liquid processing
Section includes neutralization precipitation pond 9, regulating reservoir 10, clarified filter tank 11 and the depositing reservoir 12 being sequentially connected, for used in desulfurization section
Medicament is precipitated, adjusted and recycled；The water tank 20 is by water pump to denitrfying agent dosage bunker 17 and clarified filter tank 11
Supply water；The filter-pressing device includes filter press 14, and for carrying out press filtration to the sediment slurry of absorbing liquid processing section, press filtration backwater leads to
Piping is delivered in neutralization precipitation pond 9, and the fume extractor 19 is used for discharging last flue gas.
In order to which effectively using heat energy in flue gas is calcined, waste heat boiler 2 can be set between denitration section and dedusting section.
Because the flue gas after desulfurization contains wetly, therefore high temperature fluid pipeline and denitration Duan Lian by flue gas heat-exchange unit 3
Connect, cryogenic fluid conduit is connected with desulfurization section outlet, to make the calcining flue gas of high temperature heat the flue gas after desulfurization, and effectively
Reduction calcining flue gas temperature, the backwater of the flue gas heat-exchange unit 3 is connected with neutralization precipitation pond, the flue gas heat-exchange unit 3
The exhaust outlet of cryogenic fluid conduit is communicated by air-introduced machine 5 with fume extractor.
Can set in addition water drench cooling tower further the calcining flue gas of high temperature is cooled down, facilitate follow-up dedusting with
Desulfurization.
A kind of form of practical application, as shown in figure 1, flue gas is from pot type outlet of still（Rotary kiln or boiler）1 discharge, in height
Warm smoke-gas area sprays into denitrfying agent.Denitrfying agent bunker first is stirred in denitrfying agent bunker 16 in denitrfying agent dosage bunker 17, quantitative
Be added in high-temperature flue gas.High-temperature flue gas passes through waste heat boiler 2（Evaporation boiler or hot coal thermo oil boiler）Pass through cigarette after cooling again
Gas heat exchanger 3, flue-gas temperature is further reduced.Flue gas sack cleaner/cyclone dust collectors 4 after cooling, remove powder therein
Dirt.In order to ensure that temperature is reduced to suitable degree, equipment water jetting cooler can be set after flue gas heat-exchange unit 3.From deduster 4
Flue gas out enters air-introduced machine 5, the titanium dioxide that flue gas enters in hypergravity rotation desulfurization 6 tower removing flue gas after air-introduced machine
Sulphur and remaining dust.The flue gas of desulfurizing tower 6 out, which is rotated, from hypergravity passes through demister 7（Or demister takes off with hypergravity rotation
Sulphur tower is integrated）, pass through flue gas heat-exchange unit 3 again from the flue gas of demister 7 out, air be discharged into through fume extractor 19 after heating.
From the hypergravity rotation discharge of desulfurizing tower 6 containing acid, containing alkali salt by inflow neutralization precipitation pond 9, in neutralization precipitation pond 9
The alkaline matter that middle addition comes from lye tank (vat) 8 is neutralized, and alkali lye adjustment pH value is further being added in regulating reservoir 10,
Filtered in clarified filter tank 11, the alkali lye entered by screen cloth 13 in depositing reservoir 12, depositing reservoir 12 is transported to overweight by water pump
Power rotation desulfurizing tower 6 completes desulfurization and dedusting reaction.
Slurries in neutralization precipitation pond 9, regulating reservoir 10, clarified filter tank 11 are transported in filter press 14 by water pump 21.
The aqueous solution after press filtration is by pipeline into neutralization precipitation pond 9, and filter cake is transported in storage slag case 15, regular export trade or fills out
Bury.The water returned from flue gas heat-exchange unit 3, demister 7 is also transported in neutralization precipitation pond 9.
This new technical scheme is not limited to the limitation of above-mentioned specific embodiment, every to be done according to this new technical scheme
The technology deformation gone out, each falls within this new protection domain.
Claims (6)
1. one kind calcining flue gas desulfurization dust-removal system, it is characterised in that：Including denitration section, the processing of dedusting section, desulfurization section, absorbing liquid
Section, water tank, filter-pressing device and fume extractor, the denitration section include denitrfying agent bunker, denitrfying agent dosage bunker and denitrfying agent backflow
Pump, for carrying out denitration to smoke inlet injection denitrfying agent；Dedusting section includes deduster, for removing chalk dust removing；The desulfurization section
Desulfurizing tower and demister are rotated including hypergravity, for carrying out desulfurization to flue gas；The absorbing liquid processing section includes being sequentially connected
Neutralization precipitation pond, regulating reservoir, clarified filter tank and depositing reservoir, for medicament used in desulfurization section is precipitated, adjusted and followed
Ring is utilized；The water tank is supplied water by water pump to denitrfying agent dosage bunker and clarified filter tank；The filter-pressing device includes filter press,
For carrying out press filtration to the sediment slurry of absorbing liquid processing section, press filtration backwater is described by pipeline to neutralization precipitation pond
Fume extractor is used for discharging last flue gas.
2. calcining flue gas desulfurization dust-removal system according to claim 1, it is characterised in that：The denitration section and dedusting section
Between be provided with waste-heat recovery device or/and flue gas heat-exchange unit or/and cooling device.
3. calcining flue gas desulfurization dust-removal system according to claim 2, it is characterised in that：The waste-heat recovery device is remaining
Heat boiler.
4. calcining flue gas desulfurization dust-removal system according to claim 2, it is characterised in that：The high temperature of the flue gas heat-exchange unit
Fluid line is connected with denitration section, and cryogenic fluid conduit is connected with desulfurization section outlet, the backwater of the flue gas heat-exchange unit and neutralization
Sedimentation basin is connected, and the exhaust outlet of the cryogenic fluid conduit of the flue gas heat-exchange unit is communicated by air-introduced machine with fume extractor.
5. calcining flue gas desulfurization dust-removal system according to claim 2, it is characterised in that：The cooling device is that water pouring is cold
But tower, water source comes from water tank.
6. calcining flue gas desulfurization dust-removal system according to claim 1, it is characterised in that：The deduster is bag-type dust
Device or cyclone dust collectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621464754.3U CN206350990U (en) | 2016-12-29 | 2016-12-29 | One kind calcining flue gas desulfurization dust-removal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621464754.3U CN206350990U (en) | 2016-12-29 | 2016-12-29 | One kind calcining flue gas desulfurization dust-removal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206350990U true CN206350990U (en) | 2017-07-25 |
Family
ID=59348894
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621464754.3U Active CN206350990U (en) | 2016-12-29 | 2016-12-29 | One kind calcining flue gas desulfurization dust-removal system |
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| CN (1) | CN206350990U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108706784A (en) * | 2018-08-03 | 2018-10-26 | 山东大学 | A kind of system and method for processing sintering flue gas desulfurization denitration wastewater |
| CN108815926A (en) * | 2018-06-25 | 2018-11-16 | 东台帕瓦环保节能科技有限公司 | A kind of pollution-free energy-saving cleaner |
| CN113274817A (en) * | 2021-05-26 | 2021-08-20 | 沈阳博宇科技有限责任公司 | Calcination flue gas desulfurization, denitrification and dust removal integrated treatment system and working method |
| CN114082284A (en) * | 2022-01-20 | 2022-02-25 | 北京高能时代环境技术股份有限公司 | Grading purification system and method for waste incineration flue gas |
-
2016
- 2016-12-29 CN CN201621464754.3U patent/CN206350990U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108815926A (en) * | 2018-06-25 | 2018-11-16 | 东台帕瓦环保节能科技有限公司 | A kind of pollution-free energy-saving cleaner |
| CN108706784A (en) * | 2018-08-03 | 2018-10-26 | 山东大学 | A kind of system and method for processing sintering flue gas desulfurization denitration wastewater |
| CN108706784B (en) * | 2018-08-03 | 2023-05-16 | 山东大学 | A system and method for treating sintering flue gas desulfurization and denitrification wastewater |
| CN113274817A (en) * | 2021-05-26 | 2021-08-20 | 沈阳博宇科技有限责任公司 | Calcination flue gas desulfurization, denitrification and dust removal integrated treatment system and working method |
| CN114082284A (en) * | 2022-01-20 | 2022-02-25 | 北京高能时代环境技术股份有限公司 | Grading purification system and method for waste incineration flue gas |
| CN114082284B (en) * | 2022-01-20 | 2022-04-19 | 北京高能时代环境技术股份有限公司 | Grading purification system and method for waste incineration flue gas |
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