CN204073750U - Multifunctional coal-fired flue purifier of boiler - Google Patents
Multifunctional coal-fired flue purifier of boiler Download PDFInfo
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- CN204073750U CN204073750U CN201420474150.1U CN201420474150U CN204073750U CN 204073750 U CN204073750 U CN 204073750U CN 201420474150 U CN201420474150 U CN 201420474150U CN 204073750 U CN204073750 U CN 204073750U
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- Prior art keywords
- circulatory pool
- room
- assembly
- automatically
- removes
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229910001868 water Inorganic materials 0.000 claims abstract description 54
- 239000003546 flue gas Substances 0.000 claims abstract description 45
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000000889 atomisation Methods 0.000 claims abstract description 41
- 239000002893 slag Substances 0.000 claims abstract description 34
- 230000002411 adverse Effects 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 239000007789 gas Substances 0.000 claims abstract description 16
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 14
- 239000010440 gypsum Substances 0.000 claims abstract description 14
- 239000010865 sewage Substances 0.000 claims abstract description 14
- 241000736911 Turritella communis Species 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 12
- 239000000443 aerosol Substances 0.000 claims abstract description 11
- 239000000779 smoke Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 58
- 239000003795 chemical substances by application Substances 0.000 claims description 44
- 238000002156 mixing Methods 0.000 claims description 25
- 230000008929 regeneration Effects 0.000 claims description 25
- 238000011069 regeneration method Methods 0.000 claims description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 25
- 239000012530 fluid Substances 0.000 claims description 22
- 238000007254 oxidation reaction Methods 0.000 claims description 21
- 230000003647 oxidation Effects 0.000 claims description 20
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 18
- 239000000706 filtrate Substances 0.000 claims description 14
- 239000002562 thickening agent Substances 0.000 claims description 13
- 238000004062 sedimentation Methods 0.000 claims description 12
- 239000006228 supernatant Substances 0.000 claims description 12
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 11
- 230000001172 regenerating Effects 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 210000000481 Breast Anatomy 0.000 claims description 3
- 210000003284 Horns Anatomy 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 230000002209 hydrophobic Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 38
- AKEJUJNQAAGONA-UHFFFAOYSA-N Sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 abstract description 22
- 229910052753 mercury Inorganic materials 0.000 abstract description 20
- 229910000831 Steel Inorganic materials 0.000 abstract description 19
- 239000010959 steel Substances 0.000 abstract description 19
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 15
- 229910052813 nitrogen oxide Inorganic materials 0.000 abstract description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract description 11
- KRHYYFGTRYWZRS-UHFFFAOYSA-M fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract description 11
- 238000000746 purification Methods 0.000 abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 6
- 239000002351 wastewater Substances 0.000 abstract description 5
- 238000003723 Smelting Methods 0.000 abstract description 4
- 239000004568 cement Substances 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 230000005619 thermoelectricity Effects 0.000 abstract description 4
- 238000005039 chemical industry Methods 0.000 abstract description 3
- 239000007795 chemical reaction product Substances 0.000 abstract description 3
- -1 pottery Substances 0.000 abstract description 3
- 239000004566 building material Substances 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 238000005201 scrubbing Methods 0.000 abstract description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 34
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 16
- 230000000694 effects Effects 0.000 description 13
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 12
- 235000015450 Tilia cordata Nutrition 0.000 description 12
- 235000011941 Tilia x europaea Nutrition 0.000 description 12
- 239000004571 lime Substances 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- 239000003344 environmental pollutant Substances 0.000 description 11
- 231100000719 pollutant Toxicity 0.000 description 11
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000002699 waste material Substances 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 230000000996 additive Effects 0.000 description 7
- 230000003009 desulfurizing Effects 0.000 description 7
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L Calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 6
- 230000001131 transforming Effects 0.000 description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L Calcium hydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 5
- 239000000920 calcium hydroxide Substances 0.000 description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 5
- 239000000292 calcium oxide Substances 0.000 description 5
- 238000006477 desulfuration reaction Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 5
- 239000003500 flue dust Substances 0.000 description 5
- 239000003638 reducing agent Substances 0.000 description 5
- BIGPRXCJEDHCLP-UHFFFAOYSA-N Ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 4
- 238000010531 catalytic reduction reaction Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Chemical compound O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- BFNBIHQBYMNNAN-UHFFFAOYSA-N Ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 3
- 235000011130 ammonium sulphate Nutrition 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- GBAOBIBJACZTNA-UHFFFAOYSA-L Calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking Effects 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L cacl2 Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 235000010261 calcium sulphite Nutrition 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L na2so4 Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000001187 sodium carbonate Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- UKWHYYKOEPRTIC-UHFFFAOYSA-N Mercury(II) oxide Chemical compound [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052803 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing Effects 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000009114 investigational therapy Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000011068 load Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229940074994 mercuric sulfate Drugs 0.000 description 1
- 229910000474 mercury oxide Inorganic materials 0.000 description 1
- 229910000372 mercury(II) sulfate Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000051 modifying Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000576 supplementary Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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 utility model relate to a kind of multifunctional coal-fired flue purifier of boiler, comprise and remove tower, the inner left and right sides of tower shell removing tower is provided with flue gas input port from top to bottom respectively successively, atomization hybrid cooling room, first impact remove room, atomization adverse current removes room, upper left circulatory pool, left sewage draining exit and purifying smoke delivery outlet, the automatic separation chamber of aerosol, second impact and remove room, upper right circulatory pool, right sewage draining exit.Remove tower structure compact, run time fault is few.Device technique water seal circulates, wastewater zero discharge, Gu slag end product is gypsum, has stopped the secondary pollution of slag, water.The utility model can simultaneously scrubbing CO_2, sulfur trioxide, nitrogen oxide, fluoride, chloride, mercury and PM2.5; Plant investment is little, removal efficiency is high, take up an area less, energy and material consumption is economized, and is applicable to the high-efficient purification of the coal-burning boiler of the industry such as thermoelectricity, iron and steel, cement, petrochemical industry, coloured, chemical industry, building materials, pottery, glass, smelting furnace and kiln gas.
Description
[technical field]
The utility model belongs to flue gases purification field, particularly relates to a kind of multifunctional coal-fired flue purifier of boiler being applicable to coal-burning boiler, smelting furnace, kiln gas scrubbing CO_2, sulfur trioxide, nitrogen oxide, fluoride, chloride, mercury, PM2.5.
[background technology]
China's 2012 five large Power Group coal unit and industrial and mining enterprises provide coal-burning power plant for oneself and Hazards in Power Plant total installation of generating capacity reaches 7.49 hundred million kw, year total consumption of coal 21.68 hundred million tons, the discharge capacity of coal-fired flue-gas pollutant is very considerable.
The concentration of thermoelectricity fire coal boiler fume pollutant is:
Sulfur dioxide 600mg/m
3~ 9000mg/m
3
Sulfur trioxide 50mg/m
3~ 290mg/m
3
Nitrogen oxide 500mg/m
3~ 1500mg/m
3
Fluoride 7mg/m
3~ 36mg/m
3
Chloride 14mg/m
3~ 60mg/m
3
PM2.5 500mg/m
3～2000mg/m
3
Mercury 8.49 μ g/m
3~ 79.8 μ g/m
3
The pollutant of high concentration brings very large difficulty to the high-efficient purification of flue gas.
The special emission limit that new fossil-fuel power plant atmospheric pollutant emission standard (GB13223-2011) defines key area is: flue dust, 20mg/m
3; Sulfur dioxide, 50mg/m
3; Nitrogen oxide, 100mg/m
3; Mercury and mercuric compounds, 0.03mg/m
3.
In addition, China defines PM, SO to cement kiln
2, NO
x, HF, Hg and compound thereof special emission limit; Aluminum i ndustry defines PM, SO
2, NO
x, HF emission limit; Plumbous, Zn Cr coating defines PM, SO
2, NO
x, Hg emission limit; Copper, nickel, cobalt industrial regulations PM, SO
2, NO
x, HCl, HF, Hg emission limit; The special emission limit of the equal regulation PM of above six nonferrous industry is 10mg/m
3.
No. 37, " atmosphere pollution prevents and treats action plan " (Guo Fa ﹝ 2013 ﹞ that State Council prints and distributes) explicitly call for: the enterprise such as 47 newly-built thermoelectricitys in city of China " three ten groups, districts ", iron and steel, petrochemical industry, cement, coloured, chemical industry and coal-burning boiler project will perform the special emission limit of atmosphere pollution.
New emission limit becomes and sternly proposes more and more higher requirement to the removal efficiency of smoke eliminator, but Chinese environmental report report " coal-burning power plant's denitration facility denitration rate is only about 50% " in 2013, " within 2010, focal investigation electric power enterprise 3266 overlaps desulfurization equipment, removal rate of sulfur dioxide only 69.5% "; Meanwhile, China the desulfurizer of supporting 300,000 more than kw units and denitrification apparatus still can need manufacture from external import or Chinese-foreign cooperation so far.
In the face of new discharge standard, No. 2, sub-petrochemical thermal power plant is raised in Jiangsu Province, No. 7, No. 8 Denitration in Boilers adopt the combination of low NO, SNCR denitrification apparatus, selective catalytic reduction denitration device to remove, dedusting adopts the combination of electric cleaner, sack cleaner to remove, and desulfurization adopts flue gas desulfur device.
No. 6 boiler 330,000 kw unit denitrations of Shandong Zibo Thermal Power Co., Ltd adopt the combination of low NO, selective catalytic reduction denitration device to remove, dedusting adopts a dry electric precipitation device, a wet electrical dust precipitator combination removes, and desulfurization adopts the combination of first grade desulfurizing tower, two-grade desulfurizing tower to remove.
Raise sub-petrochemical thermal power plant, Zibo Thermal Power Co., Ltd adopt six covering devices series winding uses remove flue dust, sulfur dioxide and nitrogen oxide, although the special emission limit of GB can be reached, appear following point:
1, because conventional dry electric cleaner cannot remove PM2.5 well, thus need to set up wet electrical dust precipitator or sack cleaner, cause investment increase thus, the huge occupation of land of equipment is many, running resistance is large, operating cost is high.
2, single tower desulfuration efficiency of Zibo Thermal Power Co., Ltd is low, therefore need set up two-grade desulfurizing device, not only has above-mentioned Section 1 to invest the problems such as increase, also there is waste water and dregs many, many drawbacks such as easy fouling, easily blocking, easily mill are rotten.
3, low NO denitration efficiency is low, therefore need set up selective catalytic reduction denitration device, even needs to set up SNCR denitrification apparatus again, apart from problems such as above-mentioned Section 1 investment increases, by a large amount of waste discharge, forms secondary pollution.In selective catalytic reduction denitration device running, the SO in unspent ammonia and flue gas
3reaction, generate ammonium hydrogen sulfate and ammonium sulfate (ammonium sulfate is also easily converted into ammonium hydrogen sulfate), the warm area of ammonium hydrogen sulfate between above cold junction layer and below intermediate layer 140 DEG C ~ 230 DEG C of air preheater conventional design is liquid to the Solid State Transformation stage, there is extremely strong adsorptivity, volume of smoke can be made to be deposited in metal surface and to be stuck in interlayer, cause blocking.Residual ammonia degree (3-5) × 10
-6time, air preheater resistance within 3 ~ 6 months, just can be made to rise one times, blowing out cleaning air preheater will be forced to, affect normal power generation.Ammonium hydrogen sulfate and ammonium sulfate have stronger corrosivity to metal, add upper part SO
2sO is converted under the effect of catalyst
3, the acid dew point of flue gas improves, and causes air preheater to corrode aggravation, will reduce air preheater service life.
4, wet desulphurization device is due to the Cl in water
-cannot remove, waste water can not be returned into system reuse.
Obviously, the processing method that a kind of pollutant mates many covering devices will cause with high investment, high energy consumption, multiple faults, have the problems such as secondary pollution.
In sum, need badly at present a kind of function synthesized, removal efficiency high, build and deep removal technology that operating cost is low.
[utility model content]
In order to adapt to new discharge standard and solve the above-mentioned problems in the prior art, the utility model provides one can carry out efficient removal to sulfur dioxide, sulfur trioxide, nitrogen oxide, fluoride, chloride, mercury, PM2.5, and comprehensive one, invest little, take up an area less, material consumption energy consumption is low, non-secondary pollution, widely applicable multifunctional coal-fired flue purifier of boiler.
The technical scheme that the utility model solution existing issue adopts is:
A kind of multifunctional coal-fired flue purifier of boiler, include and remove tower, the described bosom position removing the tower shell of tower is provided with demarcation strip from top to bottom successively, parts dividing plate on the left side and parts dividing plate, lower demarcation strip on the right side, and parting dividing plate on the left side and the upper end that parts dividing plate on the right side is integrally connected with upper demarcation strip, cross section is in " Y " font of handstand; Described lower demarcation strip and upper demarcation strip are positioned on same fore-and-aft plane, and its upper end with part dividing plate on the left side and the lower end that parts dividing plate on the right side is positioned in same level; The inside of tower shell is divided into left and right two parts by described lower demarcation strip and upper demarcation strip, left part be provided with successively be from top to bottom interconnected flue gas input port, atomization hybrid cooling room, first impact remove room, atomization adverse current remove room and upper left circulatory pool, and the left sewage draining exit in bottom, right part is provided with the purifying smoke delivery outlet, the automatic separation chamber of aerosol, second that are interconnected from top to bottom successively and impacts and remove room and upper right circulatory pool, and the right sewage draining exit in bottom; Described atomization adverse current removes room and the second impact room of removing and all maintains an equal level with the upper end of lower demarcation strip, and its upper end is connected by parting dividing plate on the left side and parting the passage formed between dividing plate with lower demarcation strip on the right side.
The outside of described tower shell is also provided with that the first constant-pressure variable controls assembly automatically, the second constant-pressure variable controls assembly automatically, the 3rd constant-pressure variable controls assembly automatically and the 4th constant-pressure variable controls assembly automatically, the atomizer that the top and bottom that described first constant-pressure variable controls assembly are automatically provided with atomization hybrid cooling room is respectively connected with upper left circulatory pool, the top and bottom that described second constant-pressure variable controls assembly are automatically impacted with first respectively and are removed the impulse nozzle that room is provided with and be connected with upper left circulatory pool, the atomizer that the top and bottom that described 3rd constant-pressure variable controls assembly are automatically provided with the atomization adverse current room of removing respectively is connected with upper left circulatory pool, the top and bottom that described 4th constant-pressure variable controls assembly are automatically impacted with second respectively and are removed the impulse nozzle that room is provided with and be connected with upper right circulatory pool.
Described first constant-pressure variable controls assembly automatically, the second constant-pressure variable controls assembly automatically, the 3rd constant-pressure variable controls assembly automatically, the 4th constant-pressure variable controls assembly automatically by water pump, frequency converter, pipeline, control valve composition.
Further, this device also includes and removes liquid circulation replenishment system, described in remove that liquid circulation replenishment system comprises lower-left circulatory pool, bottom right circulatory pool, make-up water automatically supply assembly, first and remove agent and pH value and automatically control assembly, soda lye and automatically control assembly, second and remove agent and pH value automatically controls assembly, removes annex solution mixing channel, the first circulatory pool circulation assembly, left overflow pipe, the second circulatory pool circulation assembly and right overflow pipe; Wherein, described make-up water is automatically supplied assembly and first and is removed agent and pH value and automatically control assembly and be all connected with lower-left circulatory pool, the described soda lye be connected with boiler blowdown water outlet side automatically controls assembly and second and removes agent and pH value and automatically control assembly and be all connected with bottom right circulatory pool, described in remove annex solution mixing channel and be connected with lower-left circulatory pool and bottom right circulatory pool; The top and bottom of described first circulatory pool circulation assembly are connected with lower-left circulatory pool with upper left circulatory pool respectively, and the top and bottom of described left overflow pipe are connected with lower-left circulatory pool with the upper end of upper left circulatory pool respectively; The top and bottom of described second circulatory pool circulation assembly are connected with bottom right circulatory pool with upper right circulatory pool respectively, and the top and bottom of described right overflow pipe are connected with bottom right circulatory pool with the upper end of upper right circulatory pool respectively.
Described make-up water is automatically supplied assembly, soda lye and is automatically controlled assembly by liquid level sensor, water pump, frequency converter, pipeline, control valve composition.
Described first removes agent and pH value automatically controls assembly, second and removes agent and pH value controls assembly automatically by mixing channel, agitator, pH sensor, water pump, frequency converter, pipeline, control valve composition.
Described first remove agent and pH value automatically control assembly, second remove agent and pH value automatically control the control ph of assembly remove agent by steel slag or lime and water formulated.
Described first circulatory pool circulation assembly, the second circulatory pool circulation assembly are by liquid level sensor, water pump, frequency converter, pipeline, control valve composition.
Further, this device also includes regeneration and utilizes system, described regeneration and utilize system automatically to supply assembly, roots blower, gelled fluid filtrate automatic transport assembly and supernatant automatic transport assembly composition primarily of soda regeneration tank, sedimentation basin, oxidation pond, thickener, automatic vacuum filter press, gypsum storehouse, regenerative agent; Wherein, described soda regeneration tank, sedimentation basin, oxidation pond, thickener, automatic vacuum filter press are connected successively by pipeline, described automatic vacuum filter press is connected with gypsum storehouse by Belt Conveying assembly, described regenerative agent is automatically supplied assembly and is connected with soda regeneration tank, and described roots blower is connected with oxidation pond by pipeline; And the bottom of lower-left circulatory pool is connected with oxidation pond by mixing slag, liquid automatic transport assembly, the bottom of bottom right circulatory pool is connected with soda regeneration tank by pipeline; The upper end of described gelled fluid filtrate automatic transport assembly is connected with lower-left circulatory pool, and lower end is connected with the filtrate output of automatic vacuum filter press with the gelled fluid output of thickener; The top and bottom of described supernatant automatic transport assembly are connected with sedimentation basin with bottom right circulatory pool respectively.
Described regenerative agent is automatically supplied assembly and is made up of mixing channel, agitator, pH sensor, water pump, frequency converter, pipeline, control valve.
The described regenerative agent regenerative agent of automatically supplying assembly supply by steel slag or lime and water formulated.
Described gelled fluid filtrate automatic transport assembly is made up of reservoir, liquid level sensor, water pump, frequency converter, pipeline, control valve.
Described supernatant automatic transport assembly and mixing slag, liquid automatic transport assembly form by liquid level sensor, water pump, frequency converter, pipeline, control valve.
Further, described tower shell comprises bottom the double horn mouth top be integrally connected from top to bottom, square middle part and biconial; And adopt A3 carbon sheet to be made, its inwall be provided with acidproof, alkaline-resisting, wear-resisting, insulation, hydrophobic organic coating protective layer
Further, the atomizer of described atomization hybrid cooling room, first impacts the impulse nozzle and second removing room and impacts the impulse nozzle that removes room and flue gas clockwise direction is arranged straight down, and the right adverse current of atomizer and flow of flue gas direction angle at 45 ° that described atomization adverse current removes room is arranged.
Further, described atomization hybrid cooling room, first is impacted to remove room and be atomized the adverse current room of removing and is all adopted calcium method to carry out gas cleaning, and described second impacts the room of removing adopts sodalime double alkali method to carry out gas cleaning.
Further, the described flue gas resistance removing tower is lost between 60Pa ~ 200Pa, flue gas flow rate 1.2m/S ~ the 1.3m/S of the automatic separation chamber of described aerosol, it is 0.5 ~ 2 that the pH value removing liquid removing room and the ejection of the atomization adverse current room of removing is impacted in described atomization hybrid cooling room, first.
Further, described remove annex solution mixing channel remove annex solution by water, denitration transforming agent, denitrification reducing agent, removal of mercury additive, except PM2.5 promoter is formulated, the circulation fluid of described upper left circulatory pool and lower-left circulatory pool is by water, the sulfuric acid that sulfur dioxide is formed through oxidation, containing steel slag or the lime of calcium oxide, the many components removing annex solution formulated remove liquid, the circulation fluid of described upper right circulatory pool and bottom right circulatory pool is by the boiler blowdown water containing NaOH or sodium carbonate, containing steel slag or the lime of calcium oxide, the many components removing annex solution formulated remove liquid.
The beneficial effects of the utility model are as follows:
The utility model, by technique scheme, can carry out efficient removal to the sulfur dioxide in coal-burning boiler, smelting furnace, kiln gas, sulfur trioxide, nitrogen oxide, fluoride, chloride, mercury, PM2.5; In addition, realize multifunctional all, the another object that device gross investment and floor space are all greatly reduced can be reached.
Because iron and steel is produced containing a large amount of calcium oxide in the discarded object slag produced, itself and water react the calcium hydroxide generated and can be used for removing SO
2deng sour gas, therefore the utility model utilizes slag as removing agent, if any steel slag near purifier, directly can be used, if periphery does not have steel slag resource, then make substitute with the lime of cheapness again, soda contained in boiler blowdown water can as the active ingredient removing pollutant, therefore the utility model uses boiler blowdown water to make process water, and subtractive process realizes the treatment of wastes with processes of wastes against one another, significantly can reduce material consumption; Remove the atomization hybrid cooling room of tower, first to impact and remove room and second and impact and remove the nozzle of room and flue gas clockwise direction is arranged straight down, to be formed and the equidirectional spraying hydrojet of flue gas, the effect of boosting flue gas preshoot all can be played along the mist sprayed, liquid, be conducive to reducing SR, saved energy consumption; Thus operating cost can greatly cut down.
In addition, removing liquid circulation replenishment system and regeneration and utilizing system to constitute the reclaiming system of process water closed circulation set by the utility model, whole wastewater zero discharge, it regenerates and utilizes the end product of waste residue in system to be gypsum, has therefore fundamentally stopped the secondary pollution of common slag, water; And the internal structure removing tower is compact, parts are few, the incidence of run duration fault is extremely low.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the multifunctional coal-fired flue purifier of boiler embodiment of the utility model.
In figure: 1-tower shell, 2-flue gas input port, the upper demarcation strip of 3-, 4-is atomized hybrid cooling room, 5 part dividing plate on the left side, 6-first impacts and removes room, 7-is atomized adverse current and removes room, 8-the 4th constant-pressure variable controls assembly automatically, demarcation strip under 9-, 10-upper left circulatory pool, the left overflow pipe of 11-, 12-first circulatory pool circulation assembly, 13-lower-left circulatory pool, 14-make-up water supplies assembly automatically, 15-first removes agent and pH value controls assembly automatically, 16-purifying smoke delivery outlet, the automatic separation chamber of 17-aerosol, 18-parts dividing plate on the right side, 19-second impacts and removes room, 20-upper right circulatory pool, the right overflow pipe of 21-, 22-second circulatory pool circulation assembly, 23-bottom right circulatory pool, 24-soda lye controls assembly automatically, 25-second removes agent and pH value controls assembly automatically, 26-removes annex solution mixing channel, 27-soda regeneration tank, 28-sedimentation basin, 29-oxidation pond, 30-roots blower, 31-thickener, 32-automatic vacuum filter press, 33-gypsum storehouse, the left sewage draining exit of 34-, the right sewage draining exit of 35-, 36-first constant-pressure variable controls assembly automatically, 37-second constant-pressure variable controls assembly automatically, 38-the 3rd constant-pressure variable controls assembly automatically, 39-supernatant automatic transport assembly, 40-gelled fluid filtrate automatic transport assembly, 41-mixing slag, liquid automatic transport assembly, 42-pipeline, 43-pipeline, 44-pipeline, 45-pipeline, 46-pipeline, 47-belt automatic transport assembly, 48-pipeline, 49-regenerative agent supplies assembly automatically, 50-removes tower.
[detailed description of the invention]
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in fig. 1:
Multifunctional coal-fired flue purifier of boiler described in the utility model embodiment, include and remove tower 50, the described concrete structure removing tower 50 is: the bosom position of tower shell 1 is provided with demarcation strip 3 from top to bottom successively, parts dividing plate 5 on the left side and parts dividing plate 18, lower demarcation strip 9 on the right side, and the upper end parting dividing plate 5 on the left side and part dividing plate 18 on the right side is integrally connected with upper demarcation strip 3, cross section is in " Y " font of handstand; Described lower demarcation strip 9 and upper demarcation strip 3 are positioned on same fore-and-aft plane, and its upper end is positioned in same level with the lower end parting dividing plate 5 on the left side and part dividing plate 18 on the right side; The inside of tower shell 1 is divided into left and right two parts by described lower demarcation strip 9 and upper demarcation strip 3, left part be provided with successively be from top to bottom interconnected flue gas input port 2, atomization hybrid cooling room 4, first impact remove room 6, atomization adverse current remove room 7 and upper left circulatory pool 10, and the left sewage draining exit 34 in bottom, right part is provided with the automatic separation chamber 17, second of the purifying smoke delivery outlet 16, the aerosol that are interconnected from top to bottom successively and impacts and remove room 19 and upper right circulatory pool 20, and the right sewage draining exit 35 in bottom; Described atomization adverse current removes room 7 and second and impacts and remove room 19 and all maintain an equal level with the upper end of lower demarcation strip 9, and its upper end is connected by parting dividing plate 5 on the left side and parting the passage formed between dividing plate 18 with lower demarcation strip 9 on the right side.
Described tower shell 1 comprises bottom the double horn mouth top be integrally connected from top to bottom, square middle part and biconial, and adopts A3 carbon sheet to be made, its inwall be provided with acidproof, alkaline-resisting, wear-resisting, insulation, hydrophobic organic coating protective layer; The atomizer of described atomization hybrid cooling room 4, first impacts the impulse nozzle and second removing room 6 and impacts the impulse nozzle that removes room 19 and flue gas clockwise direction is arranged straight down, and the right adverse current of atomizer and flow of flue gas direction angle at 45 ° that described atomization adverse current removes room 7 is arranged; Described atomization hybrid cooling room 4, first is impacted and is removed room 6 and atomization adverse current and remove room 7 and all adopts calcium method to carry out gas cleaning, and described second impact removes room 19 and adopts sodalime double alkali method to carry out gas cleaning; The described flue gas resistance removing tower 50 is lost between 60Pa ~ 200Pa, flue gas flow rate 1.2m/S ~ the 1.3m/S of the automatic separation chamber 17 of described aerosol, described atomization hybrid cooling room 4, first is impacted and is removed room 6 and atomization adverse current to remove the pH value removing liquid that room 7 sprays be 0.5 ~ 2; And the circulation fluid of described upper left circulatory pool 10 is by water, sulfur dioxide through being oxidized the sulfuric acid, steel slag (or lime), denitration transforming agent, denitrification reducing agent, the removal of mercury additive that are formed and removing liquid except the formulated many components of PM2.5 promoter, the circulation fluid of described upper right circulatory pool 20 removes liquid by boiler blowdown water, steel slag (or lime), denitration transforming agent, denitrification reducing agent, removal of mercury additive and many components of removing PM2.5 promoter formulated.
In addition, the outside of described tower shell 1 is also provided with the first constant-pressure variable and automatically controls that assembly 36, second constant-pressure variable controls assembly 37 automatically, the 3rd constant-pressure variable controls assembly 38 automatically and the 4th constant-pressure variable controls assembly 8 automatically, the atomizer that the top and bottom that described first constant-pressure variable controls assembly 36 are automatically provided with atomization hybrid cooling room 4 is respectively connected with upper left circulatory pool 10, the top and bottom that described second constant-pressure variable controls assembly 37 are automatically impacted with first respectively and are removed the impulse nozzle that room 6 is provided with and be connected with upper left circulatory pool 10, the top and bottom that described 3rd constant-pressure variable controls assembly 38 automatically remove the atomizer that room 7 is provided with respectively and are connected with upper left circulatory pool 10 with atomization adverse current, the top and bottom that described 4th constant-pressure variable controls assembly 8 are automatically impacted with second respectively and are removed the impulse nozzle that room 19 is provided with and be connected with upper right circulatory pool 20.
The operation principle removing tower described in the utility model is: first, fire coal boiler fume is by after conventional dry electric cleaner or sack cleaner dedusting, atomization hybrid cooling room 4 is entered from flue gas input port 2 through air-introduced machine, the spray film sprayed with the atomizer of atomization hybrid cooling room 4 fully mixes, and makes the flue-gas temperature after humidification be down to the best from 120 DEG C ~ 190 DEG C and removes cigarette temperature about 50 DEG C, then, cooled flue gas from atomization hybrid cooling room 4 enter the first impact remove room 6 time, impact the circulation fluid that removes that the impulse nozzle that removes room 6 sprays mix in the same way with first, that under the effect of circulation fluid that removes of impulse nozzle ejection, pours upper left circulatory pool 10 with the stable pressure of setting removes in liquid, swash the impact bubble layer forming setting height when returning into depths, bubble generates rapidly in a large number, constantly break in uphill process and merge, the gas that continuous generation is new, liquid contact surface, gas, liquid mass transfer ability is constantly strengthened, sulfur trioxide in this process flue gas and water react and generate sulfuric acid, part sulfur dioxide is removed liquid oxygen by the circulatory pool that pH value is 0.5 ~ 2 and changes into sulfuric acid, sulfuric acid generates calcium sulfate with the calcium hydroxide reaction prepared by steel slag or lime, part sulfur dioxide and water and calcium hydroxide reaction generate calcium sulfite, nitric oxide generates nitrogen dioxide under transforming agent effect, nitrogen dioxide is reduced to nitrogen under reducing agent effect, fluoride and calcium hydroxide reaction generate calcirm-fluoride, chloride and calcium hydroxide reaction generate calcium chloride, calcium chloride and sulfuric acid reaction generate calcium sulfate and hydrochloric acid, mercury generates mercuric sulfate with sulfuric acid reaction under the effect of removal of mercury additive, PM2.5 is wetted under the effect of promoter, swiftly to be removed by sticking after contact liquid film, then, impact through first the flue gas removing room 6 and upper left circulatory pool 10 preliminary purification to enter atomization adverse current and remove room 7, now remove room 6 stage narrow suddenly because flue impacts first, upwards bend again afterwards, thus high speed rotary-cut air-flow is formed, what spray under removing the atomizer of room 7 with atomization adverse current fills the air the reverse head-on collision of shape droplet, air-flow is held droplet rotary-cut and is removed liquid and fragmentation repeatedly, the breakup of drop obtains more and more less, gas, liquid contact surface is increasing, gas, liquid forms drop and the pollutant optimum response superposed layer of one section of dynamic stability under again fully mixing and being incorporated in design parameter, the hanging drop first formed replace by the hanging drop that newly formed, circulatory mediator is constantly updated, remove reaction and flue dust sticks and continues efficiently to carry out, subsequently, the flue gas removing room 7 double purification through being atomized adverse current enters the second impact and removes room 19, now flue gas and second impacts the liquid that removes that the impulse nozzle that removes room 19 sprays and moves in the same way, vortex (district in whirlpool) is formed in the equidirectional pressure of flow of flue gas, the strength of vortex in district in whirlpool is invariable, can not with boiler load height, flue gas flow size, the change of flue gas flow rate speed and changing, flue gas enters in district in whirlpool, pollutant and remove liquid and is formed under eddy current positive action and bestly fully to mix, and completes the cohesion of PM2.5, sulfur dioxide in the time of millisecond, sulfur trioxide, nitrogen oxide, fluoride, chloride, mercury with remove liquid and react continuously and healthily, the malleation impulsive force utilizing the kinetic energy of flue gas and High-Pressure Water to produce, sweep along the undershoot flue gas of mist pearl to pour in upper right circulatory pool 20, in carrying out sulfur dioxide under water at a high speed, sulfur trioxide, nitrogen oxide, fluoride, chloride, the cleaning removing reaction and PM2.5 of mercury, merge, strong current band moving air flow evokes a large amount of foams and water smoke, and foam and water smoke extend the reaction time that vapor phase contaminants and liquid phase remove thing in motion process, and increase the collision of PM2.5 and foam and water smoke, retain, stick, simultaneously impact under the soda removing room 19 removes liquid effect second, the sulfur dioxide of remaining trace, sulfur trioxide, fluoride and chloride, generate sodium hydrogensulfite respectively, sodium sulphate, sodium fluoride and sodium chloride, remaining mercury generates mercury oxide under the effect of removal of mercury additive, finally, impact through second the flue gas removing room 19 and 20 3 purifications of upper right circulatory pool and enter the automatic separation chamber 17 of aerosol, carry out aerosol separation in this, separating obtained clean flue gas is discharged from purifying smoke delivery outlet 16, emptying by chimney, what formed via subtractive process removes mixing slag, liquid, is settled down to and removes bottom tower biconial, enter lower-left circulatory pool 13 and bottom right circulatory pool 23 respectively by left sewage draining exit 34 and right sewage draining exit 35.
Compared with prior art, the utility model has following effect unique:
1, purification efficiency is high.
Flue gas can reach through the emptying concentration of tower purification after stain thing that removes described in the utility model:
Sulfur dioxide ﹤ 14.4mg/m
3
Sulfur trioxide ﹤ 2.9mg/m
3
Nitrogen oxide ﹤ 15mg/m
3
Fluoride ﹤ 0.23mg/m
3
Chloride ﹤ 0.29mg/m
3
Flue dust ﹤ 3.2mg/m
3
Mercury and mercuric compounds ﹤ 7.2 μ g/m
3
Lingemann blackness ﹤ 1 grade.
New fossil-fuel power plant atmospheric pollutant emission standard (GB13223-2011) regulation, to take gas as the boiler of fuel or the gas turbine group key area special emission limit of atmosphere pollution be in thermal power generation: flue dust, 5mg/m
3; Sulfur dioxide, 35mg/m
3; Nitrogen oxide, 50mg/m
3; And through described in the utility model remove tower remove after emission pollution thing can lower than this limit value.
2, multifunctional all.
Remove room 6 because atomization hybrid cooling room 4, first is impacted by the utility model, atomization adverse current removes room 7, upper left circulatory pool 10, the automatic separation chamber of aerosol 17, second impact and remove room 19 and upper right circulatory pool 20 is compact is arranged at one and removes (especially three remove the ingenious combination of room) in tower, and multiplely respectively remove additive role targetedly, be implemented in single covering device and can remove multiple pollutant simultaneously.
3, material consumption energy consumption is low.
The utility model takes full advantage of trade waste--and steel slag, removes agent with its active ingredient, has both decreased the amount of landfill of steel slag on the one hand, reduces again the input that other removes agent simultaneously, saves material consumption; Because the atomizer, first being atomized hybrid cooling room 4 impacts the layout that the impulse nozzle and second removing room 6 impacts impulse nozzle employing and the flue gas clockwise direction hydrojet removing room 19, the effect of boosting reinforcement is played to advancing of flue gas, make system not need to set up blower fan again, save energy consumption; Greatly reduce overall running cost thus.
4, widely applicable.
The utility model is applicable to the high-efficient purification of thermoelectricity, iron and steel, petrochemical industry, coloured, the industry coal-burning boiler such as chemical industry, cement, building materials, pottery, glass, smelting furnace, kiln gas simultaneously.
In addition, it also can be back-up system that second impact described in the utility model removes room 19, user can carry out out of service according to actual conditions or start control, but stop this second impact to remove room 19 to run, removal effect of the present utility model is still very good, through to purification after the emptying test of flue gas pollutant, removal efficiency can reach:
Sulfur dioxide 96 ~ 98%
Sulfur trioxide 90 ~ 95%
Nitrogen oxide 90 ~ 92%
Fluoride 92 ~ 96%
Chloride 93 ~ 97%
PM2.5 95～98%
Mercury and mercuric compounds 70 ~ 80%.
As the utility model one preferred version, multifunctional coal-fired flue purifier of boiler described in the utility model also includes and removes liquid circulation replenishment system, described in remove that liquid circulation replenishment system comprises lower-left circulatory pool 13, bottom right circulatory pool 23, make-up water automatically supply assembly 14, first and remove agent and pH value and automatically control assembly 15, soda lye and automatically control assembly 24, second and remove agent and pH value automatically controls assembly 25, removes annex solution mixing channel 26, first circulatory pool circulation assembly 12, left overflow pipe 11, second circulatory pool circulation assembly 22 and right overflow pipe 21.Wherein, described make-up water is automatically supplied assembly 14 and first and is removed agent and pH value and automatically control assembly 15 and be all connected with lower-left circulatory pool 13, the described soda lye be connected with boiler blowdown water outlet side automatically controls assembly 24 and second and removes agent and pH value and automatically control assembly 25 and be all connected with bottom right circulatory pool 23, described in remove annex solution mixing channel 26 and be connected with lower-left circulatory pool 13 and bottom right circulatory pool 23; The top and bottom of described first circulatory pool circulation assembly 12 are connected with lower-left circulatory pool 13 with upper left circulatory pool 10 respectively, and the top and bottom of described left overflow pipe 11 are connected with lower-left circulatory pool 13 with the upper end of upper left circulatory pool 10 respectively; The top and bottom of described second circulatory pool circulation assembly 22 are connected with bottom right circulatory pool 23 with upper right circulatory pool 20 respectively, and the top and bottom of described right overflow pipe 21 are connected with bottom right circulatory pool 23 with the upper end of upper right circulatory pool 20 respectively.And described in remove annex solution mixing channel 26 remove annex solution by water, denitration transforming agent, denitrification reducing agent, removal of mercury additive and except PM2.5 promoter formulated, the circulation fluid of described lower-left circulatory pool 13 be by water, sulfur dioxide through be oxidized is formed sulfuric acid, remove liquid containing the steel slag of calcium oxide or lime, many components of removing annex solution formulated, the circulation fluid of described bottom right circulatory pool 23 is by the boiler blowdown water containing NaOH or sodium carbonate, removes liquid containing the steel slag of calcium oxide or lime, many components of removing annex solution formulated.
The liquid circulation replenishment system operation principle that removes described in the utility model is: when upper left circulatory pool 10 by be positioned at bottom remove mixing slag, when liquid makes liquid level lower than settings after left sewage draining exit 34 inputs lower-left circulatory pool 13, first circulatory pool circulation assembly 12 starts the liquid that removes in lower-left circulatory pool 13 is flowed to upper left circulatory pool 10, make-up water supplies assembly 14 automatically simultaneously, first removes agent and pH value automatically controls assembly 15 and removes annex solution mixing channel 26 respectively to lower-left circulatory pool 13 make-up water, remove agent and remove annex solution, simultaneously when upper right circulatory pool 20 by be positioned at bottom remove mixing slag, when liquid makes liquid level lower than settings after right sewage draining exit 35 inputs bottom right circulatory pool 23, second circulatory pool circulation assembly 22 starts the liquid that removes in bottom right circulatory pool 23 is flowed to upper right circulatory pool 20, the soda lye be simultaneously connected with boiler blowdown water outlet side controls assembly 24 automatically, second removes agent and pH value automatically controls assembly 25 and removes annex solution mixing channel 26 respectively to bottom right circulatory pool 23 supply boiler blowdown water, remove agent and remove annex solution, in whole supplementary process, what upper left circulatory pool 10 and upper right circulatory pool 20 can overflow by left overflow pipe 11 and right overflow pipe 21 removes liquid defeated time lower-left circulatory pool 13 and bottom right circulatory pool 23 respectively, the stable liquid level that tower circulatory pool removes liquid is removed to maintain.
Like this, multifunctional coal-fired flue purifier of boiler described in the utility model removes liquid circulation replenishment system by setting, can automatically supplement timely and effectively the liquid that removes of upper left circulatory pool 10 and upper right circulatory pool 20, and maintenance removes in liquid the setting concentration removing agent and annex solution, ensure that the continuity of efficient removal process and good stability; In addition, use boiler blowdown water as process water, making full use of soda in boiler blowdown water as removing agent, realizing the treatment of wastes with processes of wastes against one another, reach the object reducing material consumption, reduce costs.
As the another preferred version of the utility model, multifunctional coal-fired flue purifier of boiler described in the utility model also includes regeneration and utilizes system, described regeneration and utilize system automatically to supply assembly 49, roots blower 30, gelled fluid filtrate automatic transport assembly 40 and supernatant automatic transport assembly 39 form primarily of soda regeneration tank 27, sedimentation basin 28, oxidation pond 29, thickener 31, automatic vacuum filter press 32, gypsum storehouse 33, regenerative agent.Wherein, described soda regeneration tank 27, sedimentation basin 28, oxidation pond 29, thickener 31, automatic vacuum filter press 32 are connected successively by pipeline (48,43,45,46), described automatic vacuum filter press 32 is connected with gypsum storehouse 33 by Belt Conveying assembly 47, described regenerative agent is automatically supplied assembly 49 and is connected with soda regeneration tank 27, and described roots blower 30 is connected with oxidation pond 29 by pipeline 44; And the bottom of lower-left circulatory pool 13 is connected with oxidation pond 29 by mixing slag, liquid automatic transport assembly 41, the bottom of bottom right circulatory pool 23 is connected with soda regeneration tank 27 by pipeline 42; The upper end of described gelled fluid filtrate automatic transport assembly 40 is connected with lower-left circulatory pool 13, and lower end is connected with the filtrate output of automatic vacuum filter press 32 with the gelled fluid output of thickener 31; The top and bottom of described supernatant automatic transport assembly 39 are connected with sedimentation basin 28 with bottom right circulatory pool 23 respectively.
Regeneration described in the utility model and utilize the operation principle of system to be: first, bottom lower-left circulatory pool 13 removing mixing slag, liquid sends oxidation pond 29 to through mixing slag, liquid automatic transport assembly 41; Meanwhile, removing bottom bottom right circulatory pool 23 mixes slag, liquid inputs soda regeneration tank 27 through pipeline 42, regenerative agent is automatically supplied assembly 49 and is dropped into steel slag or lime to soda regeneration tank 27, mixed liquor is regenerated by steel slag or lime, mixed liquor after regeneration and original solid slag enter sedimentation basin 28 by pipeline 48, supernatant (soda lye) after precipitation is sent bottom right circulatory pool 23 to by supernatant automatic transport assembly 39 and is recycled, and lower floor's mixing slag of sedimentation basin 28, liquid send into oxidation pond 29 by pipeline 43; Then, oxidation pond 29 is by removing mixed liquor (pH value is 0.5 ~ 2) and removing from bottom right circulatory pool 23 mixed liquor (pH value is 4 ~ 5) that mixed liquor (pH value is 6.2 ~ 6.8) is modulated into tool optimum oxidation pH value from lower-left circulatory pool 13, blasting air by roots blower 30 to oxidation pond 29 to be again oxidized, is calcium sulfate (gypsum) by desulfurization product calcium sulfite oxidation; Then, the mixed liquor after oxidation sends into thickener 31 by pipeline 45, is crowded into by thickener 31 the dense mixed liquor that concentration is 40 ~ 50%, then sends automatic vacuum filter press 32 to by pipeline 46 and carry out pulp water separation; Finally, the filtrate of the gelled fluid of thickener 31 and automatic vacuum filter press 32 is sent into lower-left circulatory pool 13 circulating and recovering by gelled fluid filtrate automatic transport assembly 40, and send gypsum storehouse 33 through the separating obtained moisture gypsum being less than 10% of automatic vacuum filter press 32 to by belt automatic transport assembly 47 and reclaim, deposit, so that gypsum outward transport plasterboard processed, non-burning brick etc.
Like this, multifunctional coal-fired flue purifier of boiler described in the utility model, by arranging regeneration and utilizing system, makes the soda in boiler blowdown water be regenerated and make full use of; And gelled fluid filtrate automatic transport assembly, supernatant automatic transport assembly by loop by waste liquid, supernatant defeated time lower circulatory pool, the utilization rate of the waste water of whole technique is made to reach 100%, and, regenerate and utilize the end product of waste residue in system for gypsum, therefore, the secondary pollution of common slag, water has fundamentally been stopped.
Above content is in conjunction with concrete optimal technical scheme further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection domain of the present utility model.
Claims (7)
1. a multifunctional coal-fired flue purifier of boiler, it is characterized in that: include and remove tower (50), the described bosom position removing the tower shell (1) of tower (50) is provided with demarcation strip (3) from top to bottom successively, parts dividing plate (5) on the left side and parts dividing plate (18), lower demarcation strip (9) on the right side, and part dividing plate (5) on the left side and part the upper end of dividing plate (18) on the right side and upper demarcation strip (3) is integrally connected, cross section is in " Y " font stood upside down, described lower demarcation strip (9) and upper demarcation strip (3) are positioned on same fore-and-aft plane, and its upper end is positioned in same level with the lower end parting dividing plate (5) on the left side and part dividing plate (18) on the right side, the inside of tower shell (1) is divided into left and right two parts by described lower demarcation strip (9) and upper demarcation strip (3), left part is provided with the flue gas input port (2) be interconnected from top to bottom successively, atomization hybrid cooling room (4), first impact removes room (6), atomization adverse current removes room (7) and upper left circulatory pool (10), and the left sewage draining exit in bottom (34), right part is provided with the purifying smoke delivery outlet (16) be interconnected from top to bottom successively, the automatic separation chamber of aerosol (17), second impact removes room (19) and upper right circulatory pool (20), and the right sewage draining exit in bottom (35), described atomization adverse current removes room (7) and second and impacts that to remove room (19) all fair with the upper end of lower demarcation strip (9), and its upper end is connected by parting dividing plate (5) on the left side and parting the passage formed between dividing plate (18) with lower demarcation strip (9) on the right side,
The outside of described tower shell (1) is also provided with that the first constant-pressure variable controls assembly (36) automatically, the second constant-pressure variable controls assembly (37) automatically, the 3rd constant-pressure variable controls assembly (38) automatically and the 4th constant-pressure variable controls assembly (8) automatically, the atomizer that the top and bottom that described first constant-pressure variable controls assembly (36) are automatically provided with atomization hybrid cooling room (4) is respectively connected with upper left circulatory pool (10), the top and bottom that described second constant-pressure variable controls assembly (37) are automatically impacted with first respectively and are removed the impulse nozzle that room (6) is provided with and be connected with upper left circulatory pool (10), the top and bottom that described 3rd constant-pressure variable controls assembly (38) automatically remove the atomizer that room (7) is provided with respectively and are connected with upper left circulatory pool (10) with atomization adverse current, the top and bottom that described 4th constant-pressure variable controls assembly (8) are automatically impacted with second respectively and are removed the impulse nozzle that room (19) is provided with and be connected with upper right circulatory pool (20).
2. multifunctional coal-fired flue purifier of boiler according to claim 1, it is characterized in that: this device also includes and removes liquid circulation replenishment system, the described liquid circulation replenishment system that removes comprises lower-left circulatory pool (13), bottom right circulatory pool (23), make-up water supplies assembly (14) automatically, first removes agent and pH value controls assembly (15) automatically, soda lye controls assembly (24) automatically, second removes agent and pH value controls assembly (25) automatically, remove annex solution mixing channel (26), first circulatory pool circulation assembly (12), left overflow pipe (11), second circulatory pool circulation assembly (22) and right overflow pipe (21), wherein, described make-up water is automatically supplied assembly (14) and first and is removed agent and pH value and automatically control assembly (15) and be all connected with lower-left circulatory pool (13), the described soda lye be connected with boiler blowdown water outlet side automatically controls assembly (24) and second and removes agent and pH value and automatically control assembly (25) and be all connected with bottom right circulatory pool (23), described in remove annex solution mixing channel (26) and be connected with lower-left circulatory pool (13) and bottom right circulatory pool (23), the top and bottom of described first circulatory pool circulation assembly (12) are connected with lower-left circulatory pool (13) with upper left circulatory pool (10) respectively, and the top and bottom of described left overflow pipe (11) are connected with lower-left circulatory pool (13) with the upper end of upper left circulatory pool (10) respectively, the top and bottom of described second circulatory pool circulation assembly (22) are connected with bottom right circulatory pool (23) with upper right circulatory pool (20) respectively, and the top and bottom of described right overflow pipe (21) are connected with bottom right circulatory pool (23) with the upper end of upper right circulatory pool (20) respectively.
3. multifunctional coal-fired flue purifier of boiler according to claim 2, it is characterized in that: this device also includes regeneration and utilizes system, described regeneration and utilize system automatically to supply assembly (49), roots blower (30), gelled fluid filtrate automatic transport assembly (40) and supernatant automatic transport assembly (39) form primarily of soda regeneration tank (27), sedimentation basin (28), oxidation pond (29), thickener (31), automatic vacuum filter press (32), gypsum storehouse (33), regenerative agent; Wherein, described soda regeneration tank (27), sedimentation basin (28), oxidation pond (29), thickener (31), automatic vacuum filter press (32) are connected successively by pipeline (48,43,45,46), described automatic vacuum filter press (32) is connected with gypsum storehouse (33) by belt automatic transport assembly (47), described regenerative agent is automatically supplied assembly (49) and is connected with soda regeneration tank (27), and described roots blower (30) is connected with oxidation pond (29) by pipeline (44); And the bottom of lower-left circulatory pool (13) is connected with oxidation pond (29) by mixing slag, liquid automatic transport assembly (41), the bottom of bottom right circulatory pool (23) is connected with soda regeneration tank (27) by pipeline (42); The upper end of described gelled fluid filtrate automatic transport assembly (40) is connected with lower-left circulatory pool (13), and lower end is connected with the filtrate output of automatic vacuum filter press (32) with the gelled fluid output of thickener (31); The top and bottom of described supernatant automatic transport assembly (39) are connected with sedimentation basin (28) with bottom right circulatory pool (23) respectively.
4. multifunctional coal-fired flue purifier of boiler according to claim 1, described tower shell (1) comprises bottom the double horn mouth top be integrally connected from top to bottom, square middle part and biconial; And adopt A3 carbon sheet to be made, its inwall be provided with acidproof, alkaline-resisting, wear-resisting, insulation, hydrophobic organic coating protective layer.
5. multifunctional coal-fired flue purifier of boiler according to claim 1, it is characterized in that: the atomizer of described atomization hybrid cooling room (4), first impacts the impulse nozzle and second removing room (6) and impacts the impulse nozzle that removes room (19) and flue gas clockwise direction is arranged straight down, and the right adverse current of atomizer and flow of flue gas direction angle at 45 ° that described atomization adverse current removes room (7) is arranged.
6. multifunctional coal-fired flue purifier of boiler according to claim 1 and 2, it is characterized in that: described atomization hybrid cooling room (4), first is impacted and removed room (6) and atomization adverse current removes room (7) and all adopts calcium method to carry out gas cleaning, and described second impact removes room (19) employing sodalime double alkali method and carries out gas cleaning.
7. multifunctional coal-fired flue purifier of boiler according to claim 1 and 2, it is characterized in that: described in remove tower (50) flue gas resistance be lost between 60Pa ~ 200Pa, flue gas flow rate 1.2m/S ~ the 1.3m/S of the automatic separation chamber of described aerosol (17), described atomization hybrid cooling room (4), first is impacted and is removed room (6) and be atomized adverse current that to remove the pH value removing liquid that room (7) sprays be 0.5 ~ 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420474150.1U CN204073750U (en) | 2014-08-21 | 2014-08-21 | Multifunctional coal-fired flue purifier of boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420474150.1U CN204073750U (en) | 2014-08-21 | 2014-08-21 | Multifunctional coal-fired flue purifier of boiler |
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| CN204073750U true CN204073750U (en) | 2015-01-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104138701A (en) * | 2014-08-21 | 2014-11-12 | 张锡源 | Flue gas purifying device of multi-functional coal-fired boiler |
| CN110759536A (en) * | 2019-11-12 | 2020-02-07 | 郭慧珍 | Tungsten waste water convection purification device |
-
2014
- 2014-08-21 CN CN201420474150.1U patent/CN204073750U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104138701A (en) * | 2014-08-21 | 2014-11-12 | 张锡源 | Flue gas purifying device of multi-functional coal-fired boiler |
| CN104138701B (en) * | 2014-08-21 | 2016-06-22 | 张锡源 | Multifunctional coal-fired flue purifier of boiler |
| CN110759536A (en) * | 2019-11-12 | 2020-02-07 | 郭慧珍 | Tungsten waste water convection purification device |
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