CN206545940U - The flue gas purification system of soot burning boiler - Google Patents
The flue gas purification system of soot burning boiler Download PDFInfo
- Publication number
- CN206545940U CN206545940U CN201720217931.6U CN201720217931U CN206545940U CN 206545940 U CN206545940 U CN 206545940U CN 201720217931 U CN201720217931 U CN 201720217931U CN 206545940 U CN206545940 U CN 206545940U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- desulfurization
- purification system
- gas purification
- burning boiler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000003546 flue gas Substances 0.000 title claims abstract description 47
- 238000000746 purification Methods 0.000 title claims abstract description 37
- 239000004071 soot Substances 0.000 title claims abstract description 18
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 70
- 230000023556 desulfurization Effects 0.000 claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000000428 dust Substances 0.000 claims abstract description 32
- 239000007921 spray Substances 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 16
- 239000011941 photocatalyst Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 36
- 238000001514 detection method Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 19
- 239000000523 sample Substances 0.000 claims description 19
- 239000003500 flue dust Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 12
- 238000010410 dusting Methods 0.000 claims description 9
- 239000010865 sewage Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 7
- 239000000779 smoke Substances 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 230000003134 recirculating effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004332 deodorization Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 3
- 231100000331 toxic Toxicity 0.000 abstract description 3
- 230000002588 toxic effect Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 18
- 238000005457 optimization Methods 0.000 description 18
- 239000000126 substance Substances 0.000 description 9
- 238000004056 waste incineration Methods 0.000 description 9
- 239000005864 Sulphur Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 239000010813 municipal solid waste Substances 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 241000233866 Fungi Species 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 150000002240 furans Chemical class 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000003053 toxin Substances 0.000 description 2
- 231100000765 toxin Toxicity 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000002699 waste material Substances 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
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model is related to environmental technology field, and in particular to the flue gas purification system of soot burning boiler.Mainly include purifier, desulfurization deacidifying device, dust arrester, the purification tower bottom is provided with dirty water collecting tank, return duct is provided with the middle part of dirty water collecting tank, the return duct is connected with high-pressure spray gun entrance, and the screen pack for being loaded with photocatalyst is respectively equipped with inside the tower body inside the dirty water collecting tank and above high-pressure spray gun.The utility model reduces production cost；Effectively degraded air in toxic and harmful gas；It is also equipped with simultaneously except functions such as formaldehyde, deodorization, anti-soil, purification air.
Description
Technical field
The utility model is related to environmental technology field, and more particularly to waste incineration post-processes field of purification, more specifically,
The specifically related to flue gas purification system of soot burning boiler.
Background technology
Waste incineration method is a kind of method of more ancient traditional processing rubbish, is a kind of garbage disposal put into practice for many years
Method, after being handled due to rubbish with burning method, reduction significantly, saves land used, can also eliminate various pathogen, will be poisonous
Harmful substance is converted into harmless object, therefore waste incineration method turns into one of main method for the treatment of of urban garbage.It is compared with landfill
Method floor space is small, efficiency high, is once once being considered as the good method of a kind of " decrement is fast ", attracts the developed countries such as Japan and Germany
Greatly develop.The also rapid extension of the waste incineration engineering of China.
Waste incineration method is reacted by appropriate thermal decomposition, burning, melting etc., carries out the oxidation that rubbish passes through under high temperature
Volume reduction decrement, the process as residue or molten solids material.Incineration process of domestic garbage produces hydrogen chloride, hydrogen fluoride, two
Flue gas after the harmful substances, therefore consumer waste incineration such as sulfur oxide, carbon monoxide, formaldehyde, bioxin and furans is made to environment
Into very it is big pollution be in recent years countries in the world institute general concern the problem of.Flue gas after consumer waste incineration is caused very to environment
The generation and diffusion of harmful substance, effectively control harmful substances from flue gases in big harm, purification incineration flue gas, are directly connected to
Waste incineration and the promotion and application of Waste Firing Power Generation Technique.Waste incineration facility must be equipped with fume treatment facility, prevent a huge sum of money
Category, organic pollutant etc. are discharged into surrounding medium again, mitigate the pollution to air.
The harmful organic substances such as formaldehyde, benzene are dissolved by water smoke during conventional gas cleaning and reclaimed, the sewage reclaimed
Can not the harmful substance such as decomposing formaldehyde, benzene, cause secondary pollution.How further to remove harmful in Refuse Incineration Process flue gas
Material, the harmful substance such as decomposing formaldehyde, benzene improves the quality of purifying smoke, is the problem of we need to continue to solve at present.
The content of the invention
The purpose of this utility model, which is to solve the above problems there is provided one kind, has high-efficient purification function, and reduces cost
Soot burning boiler flue gas purification system.
In order to solve the above problems, the technical solution adopted in the utility model is as follows：
The flue gas purification system of soot burning boiler, the flue gas purification system provides flue gas in flue by axial flow blower
Mobilization dynamic in tube side, mainly including purifier, desulfurization deacidifying device, dust arrester, the purifier, desulfurization depickling
Connected between device, dust arrester by flue tube side, the purifier mainly includes purifying column, high-pressure spray gun, described de-
Sulphur deacidifying device is the processing chamber housing provided with desulfurization deacidification agent shower nozzle, and the dust arrester is bag-type dusting filter, and it is special
Levy and be, smoke inlet is provided with the middle part of the tower body of the purifying column, the tower top of the purifying column is provided with exhanst gas outlet, the flue gas
Entrance top is provided with high-pressure spray gun, and high-pressure spray gun hydrojet is reverse with flue gas, and the purification tower bottom is provided with dirty water collecting tank, described
It is funnel shaped flue-dust retainer below dirty water collecting tank, the flue-dust retainer bottom is provided with sewage draining exit, and the sewage draining exit is provided with valve, dirty
Return duct is provided with the middle part of water collection tank, the return duct is connected with high-pressure spray gun entrance, the return duct is provided with back-water valve (BWV),
The screen pack for being loaded with photocatalyst is respectively equipped with inside tower body inside the dirty water collecting tank and above high-pressure spray gun, it is described to be loaded with
Ultraviolet light lamp source is provided with above the screen pack of photocatalyst.
Optimization of the present utility model, the desulfurization deacidifying device is recirculating fluidized bed wet process of FGD deacidification system.
Further optimization, the desulfurization deacidification agent inlet ductwork of desulfurization deacidifying device further comprises pH detection probes, acidity
Sensor, solenoid electric valve, the pH detection probes are located at desulfurization located at detection desulfurization deacidifying device porch, solenoid electric valve
Deacidification agent is prepared on pipeline, the pH detection probes, acidity sensor, solenoid electric valve electrical connection.
Further optimization, the desulfurization deacidifying device bottom is provided with desulfurization deacidification agent collection box, and the desulfurization deacidification agent is returned
Receive case bottom and be provided with return line, the return line is prepared pipeline with desulfurization deacidification agent and is connected.
Further optimization, the bag-type dusting filter is further provided with the run-down detection means of filter bag.
Provided with emergent gas bypass system inside further optimization, the dust arrester.
Further optimization, the bag-type dusting filter is further connected with compressed air line, the compressed air
Pipeline is provided with electromagnetic pulse control valve.
It is provided with inside further optimization, the dust collecting box of dust arrester outside constant temperature heating device, flue-dust retainer provided with insulation dress
Put.
Further optimization, the constant temperature heating device includes heating rod, temperature measuring probe, thermostatic sensor, described to add
Hot pin and temperature measuring probe are inside flue-dust retainer, and the heating rod, temperature measuring probe and thermostatic sensor are electrically connected with.
Further optimization, the attemperator is insulating foam cotton.
Compared with prior art, the utility model has the advantage of：
The pollutant such as PARA FORMALDEHYDE PRILLS(91,95), benzene is used in water solution reclaiming method, processing flue gas mostly in conventional flue gas processing device
Due to containing the pollutants such as soluble formaldehyde, benzene in water, it is impossible to handle, the secondary pollution of water resource is caused.
The utility model is degraded using photocatalyst to chemical pollutant soluble in water, is had the following advantages that：
（1）Photocatalyst is a kind of photosemiconductor material with photo-catalysis function by representative of Nano titanium dioxide
General name, it is coated on substrate surface, in the presence of ultraviolet light, produces strong catalytic degradation function：Can effectively be degraded sky
Toxic and harmful gas in gas；Various bacteria can be effectively killed, and the toxin that can discharge bacterium or fungi is decomposed and innoxious
Processing；It is also equipped with simultaneously except functions such as formaldehyde, deodorization, anti-soil, purification air；
（2）Being cleaned the water after processing can be recycled, it is to avoid the secondary pollution of water, effectively reduce and be produced into
This；
（3）The utility model purifier, desulfurization deacidifying device are two covering devices, and purifier mainly removes dust and first
Aldehyde, preliminary sulphur removal depickling, the further desulfurization depickling of desulfurization deacidifying device, gas cleaning is thorough, good purification, in purifier
Water remove recoverable after dust, desulfurization deacidification agent is also recyclable.
（4）The utility model operation is safe and reliable, economical, easy to operate, maintenance is easy, can be in large-scale application.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the flue gas purification system of the utility model soot burning boiler；
Description of reference numerals：Purifier -1, purifying column -11, high-pressure spray gun -12, dirty water collecting tank -13, flue-dust retainer -
14th, return duct -15, back-water valve (BWV) -16, screen pack -17, ultraviolet light lamp source -18, desulfurization deacidifying device -2, desulfurization deacidification agent shower nozzle -
21st, processing chamber housing -22, desulfurization deacidification agent import -23, desulfurization deacidification agent collection box -24, return line -25, dust arrester -3,
Emergent gas bypass system -31, compressed air line -32, electromagnetic pulse control valve -33, dust collecting box -34, constant temperature heating device -
35th, the run-down detection means -5 of axial flow blower -4, filter bag.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that advantage of the present utility model
It can be easier to be readily appreciated by one skilled in the art with feature, so as to make protection domain of the present utility model apparent clear and definite
Define.
As shown in fig.1, the utility model provides the flue gas purification system of soot burning boiler, it is main to include purification dress
1, desulfurization deacidifying device 2, dust arrester 3 are put, flue is passed through between the purifier 1, desulfurization deacidifying device 2, dust arrester 3
Tube side is connected, and the flue gas purification system provides mobilization dynamic of the flue gas in flue tube side, the purification dress by axial flow blower 4
Putting 1 mainly includes purifying column 11, high-pressure spray gun 12, and the desulfurization deacidifying device 2 is the processing provided with desulfurization deacidification agent shower nozzle 21
Chamber 22, the dust arrester 3 is bag-type dusting filter, it is characterised in that be provided with the middle part of the tower body of the purifying column 11
Smoke inlet, the tower top of the purifying column 11, which is provided with above exhanst gas outlet, the smoke inlet, is provided with high-pressure spray gun 12, the height
Press the hydrojet of spray gun 12 reverse with flue gas, the bottom of purifying column 11 is provided with dirty water collecting tank 13, the lower section of dirty water collecting tank 13
For funnel shaped flue-dust retainer 14, the bottom of flue-dust retainer 14 is provided with sewage draining exit, and the sewage draining exit is provided with valve, dirty water collecting tank 13
Middle part is provided with return duct 15, and the return duct 15 is connected with the entrance of high-pressure spray gun 12, and the return duct 15 is provided with back-water valve (BWV) 16,
The screen pack 17 for being loaded with photocatalyst, institute are respectively equipped with inside the tower body of the inside of dirty water collecting tank 13 and the top of high-pressure spray gun 12
The top of screen pack 17 for being loaded with photocatalyst is stated provided with ultraviolet light lamp source 18.
The atomized water one sprayed into the purifying column of purifier in this specific embodiment is humidification particle surface, and two be to make
Cigarette temperature drop creates good desulfurization reaction temperature, desulfurization deacidification agent is in desulfurization deacidifying device to 20 DEG C or so of flue gas dew point is higher than
Fully reacted with sulfur dioxide, the dirt such as dust, formaldehyde, benzene, acid, bioxin and furans for being mainly used in removing after burning in flue gas
Thing is contaminated, water insoluble dust can be deposited in dirty water collecting tank, the sewage draining exit that the dust deposited in flue-dust retainer passes through bottom
Outer row.Pollutant soluble in water is degraded purification by photocatalyst under ultra violet lamp, the purification Water Sproading after then handling
Recycle.Ash-laden gas after purification is discharged from purifying column top vent, then is discharged into desulfurization depickling by air-introduced machine gravitation
Device, subsequently into dust arrester.
Present embodiment is degraded using photocatalyst to chemical pollutant soluble in water, is had the following advantages that：
（1）Photocatalyst is a kind of photosemiconductor material with photo-catalysis function by representative of Nano titanium dioxide
General name, it is coated on substrate surface, in the presence of ultraviolet light, produces strong catalytic degradation function：Can effectively be degraded sky
Toxic and harmful gas in gas；Various bacteria can be effectively killed, and the toxin that can discharge bacterium or fungi is decomposed and innoxious
Processing；It is also equipped with simultaneously except functions such as formaldehyde, deodorization, anti-soil, purification air；
（2）Being cleaned the water after processing can be recycled, it is to avoid the secondary pollution of water, effectively reduce and be produced into
This；
（3）The utility model purifier, desulfurization deacidifying device are two covering devices, and purifier mainly removes dust and first
Aldehyde, preliminary sulphur removal depickling, the further desulfurization depickling of desulfurization deacidifying device, gas cleaning is thorough, good purification, in purifier
Water remove recoverable after dust, desulfurization deacidification agent is also recyclable.
（4）The utility model operation is safe and reliable, economical, easy to operate, maintenance is easy, can be in large-scale application.
The optimization of present embodiment, the desulfurization deacidifying device 2 is recirculating fluidized bed wet process of FGD depickling system
System.Desulfurization deacidification agent used is the aqueous slkali that weight/mass percentage composition is 10% ~ 30%, and this specific embodiment is molten using calcium hydroxide
Liquid.Desulfurization deacidification agent, circulation desulfurization ash are suspended by the percussion of air-flow, form fluid bed, carry out second step and fill
The desulphurization reaction divided.Fluid carries state in fierce in this region, has very big landing between particle and flue gas
Speed, particle reaction interface constantly rubs, collides renewal, greatly enhances the heat and mass transport of desulphurization reaction.
Further optimization, the pipeline of desulfurization deacidification agent import 23 of desulfurization deacidifying device 2 further comprises pH detection probes, acid
Sensor, solenoid electric valve are spent, the pH detection probes are located at detection desulfurization deacidifying device porch, and solenoid electric valve is located at de-
Sulphur deacidification agent is prepared on pipeline, the pH detection probes, acidity sensor, solenoid electric valve electrical connection.Water storage tank is supplied by water pump
Water, the acidity of porch flue gas is detected with the pH detection probes in this specific embodiment, and acidity value is sent to acidity sensing
Device carries out signal conversion, and the acidity value signal after conversion is sent to solenoid electric valve, and solenoid electric valve is controlled automatically according to acidity value
Aperture processed.Thus can be that the sour concentration with sulfur dioxide automatically controls preparation desulfurization deacidification agent according to the acidity value before fume treatment
Concentration.
The improvement of this specific embodiment, has the advantage that：The preparation of desulfurization deacidification agent can be automatically adjusted according to inlet flue gas acidity
Concentration, in the case of it can ensure that flue gas deacidification sulphur removal thoroughly, saves the loss of desulfurization deacidification agent.Institute in this specific embodiment
The desulfurization deacidification agent used is the aqua calcis that weight concentration is 20% to 30%.
Further optimization, the bottom of desulfurization deacidifying device 2 is provided with desulfurization deacidification agent collection box 24, and the bottom is provided with back
Flow tube road 25, the return line 25 is prepared pipeline with desulfurization deacidification agent and is connected.Desulfurization deacidification agent is contacted not with first flue gas
Can be completely by desulfurization deacidification agent using fully, recycling can make full use of desulfurization deacidification agent, and reduce production cost.Due to cigarette
The reduction of temperature degree and the increase of temperature so that the acid and sulfur dioxide in flue gas are easily cold on the surface of desulfurization deacidification agent
Coagulate, adsorb and ionize, it is highly beneficial to raising depickling, desulfuration efficiency；Further, since inside reactor flue gas flow rate is very fast,
Desulfurization depickling agent concentration is higher, the intergranular severe friction of circulating ash so that the non-reacted parts covered by calcium salt duricrust take off
Sulphur deacidification agent exposes to continue to participate in reaction again.Meanwhile, the circulation of the continuous supplementation of fresh absorbent and a large amount of Desulphurizations,
By humidification mixing, absorbent is set to maintain higher valid density all the time in the reactor, it is ensured that higher absorption efficiency.
Further optimization, the bag-type dusting filter is further provided with the run-down detection means 5 of filter bag.Periodically start
The run-down detection means of filter bag detects to filter bag, timely processing of pinpointing the problems.Filter bag used in this specific embodiment
Run-down detection means can be bought directly from the market, the professional production filter cloth filter bag experiment of measuring appratus Co., Ltd of Wuhan state
Room tester YG026H multifunction electronics fabric strength machine, YG461E digital textile air permeation volume gauges.
Further optimization, the inside of dust arrester 3 is provided with emergent gas bypass system 31, when flue-gas temperature is too high or mistake
Bypass can be automatically opened up when low.Make when bypass is set to prevent boiler or sack cleaner to be in an emergency or boiler is driven
With.
Further optimization, the bag-type dusting filter is further connected with compressed air line 32, and the compression is empty
Air pipe 32 is provided with electromagnetic pulse control valve 33.The dust granule sticked on filter bag is shaken using pulsed supply compressed air
Under, it is to avoid dust granule blocks the filter opening of filter bag, influences filter effect.Using pressure difference, timing, manual three kinds of control modes to except
Dirt device deashing process is automatically controlled.Using offline pulse dust cleaning mode, Low-Pressure Pulse Bag Filter uses compressed air
Pulse jetting deashing is carried out, deashing mechanism includes compressed air manufacture device, injection tube and electromagnetic pulse control valve.It is every in filter chamber
Row's filter bag outlet top is equipped with the downside of an injection tube, injection tube to be just provided with injection mouth, each injection tube to filter bag center
It is equipped with a pulse valve and is communicated with compressed air distributor.
Further optimization, the inside of dust collecting box 34 of dust arrester 3 is provided with constant temperature heating device 35, and the outside of flue-dust retainer 34 is provided with
Attemperator, it is to avoid the too low dust of temperature occurs to put up a bridge or lumpd.
Further optimization, the constant temperature heating device 35 includes heating rod, temperature measuring probe, thermostatic sensor, described
Heating rod and temperature measuring probe are inside flue-dust retainer, and the heating rod, temperature measuring probe and thermostatic sensor electrically connect
Connect.
Further optimization, the attemperator is insulating foam cotton.
This other specific embodiment also has the following advantages：
（1）There is no any moving component in tower, wear and tear small, the long maintenance of service life of equipment is small.
（2）Depickling desulfuration efficiency is high, operating cost is low.
（3）With good operating flexibility, it is relatively independent to add the calcium hydroxide and water of desulfurization deacidifying device, works as flue gas
In sulphur, acid content increase when, it is only necessary to the requirement of higher desulfurization depickling can just be met by increasing the consumption of desulfurization deacidification agent.
General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, retouching in above-described embodiment and specification
Preference only of the present utility model is stated, the utility model is not limited by above-mentioned preference, is not departing from the utility model
On the premise of spirit and scope, the utility model can also have various changes and modifications, and these changes and improvements both fall within this practicality
In new claimed scope.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (10)
1. the flue gas purification system of soot burning boiler, the flue gas purification system provides flue gas in flue tube by axial flow blower
Mobilization dynamic in journey, mainly including purifier, desulfurization deacidifying device, dust arrester, the purifier, desulfurization depickling dress
Put, connected by flue tube side between dust arrester, the purifier mainly includes purifying column, high-pressure spray gun, the desulfurization
Deacidifying device is the processing chamber housing provided with desulfurization deacidification agent shower nozzle, and the dust arrester is bag-type dusting filter, its feature
It is, smoke inlet is provided with the middle part of the tower body of the purifying column, and the tower top of the purifying column is provided with exhanst gas outlet, and the flue gas enters
High-pressure spray gun is provided with above mouthful, high-pressure spray gun hydrojet is reverse with flue gas, the purification tower bottom is provided with dirty water collecting tank, the dirt
It is funnel shaped flue-dust retainer below water collection tank, the flue-dust retainer bottom is provided with sewage draining exit, and the sewage draining exit is provided with valve, sewage
Return duct is provided with the middle part of collecting box, the return duct is connected with high-pressure spray gun entrance, the return duct is provided with back-water valve (BWV), described
The screen pack for being loaded with photocatalyst is respectively equipped with inside tower body inside dirty water collecting tank and above high-pressure spray gun, the light that is loaded with is touched
Ultraviolet light lamp source is provided with above the screen pack of matchmaker.
2. the flue gas purification system of soot burning boiler according to claim 1, it is characterised in that the desulfurization depickling
Device is recirculating fluidized bed wet process of FGD deacidification system.
3. the flue gas purification system of soot burning boiler according to claim 1, it is characterised in that desulfurization deacidifying device
Desulfurization deacidification agent inlet ductwork further comprise pH detection probes, acidity sensor, solenoid electric valve, the pH detection probes
Located at detection desulfurization deacidifying device porch, solenoid electric valve is prepared on pipeline located at desulfurization deacidification agent, the pH detection probes,
Acidity sensor, solenoid electric valve electrical connection.
4. the flue gas purification system of soot burning boiler according to claim 3, it is characterised in that the desulfurization depickling
Bottom of device is provided with desulfurization deacidification agent collection box, and the desulfurization deacidification agent collection box bottom is provided with return line, the return duct
Pipeline is prepared with desulfurization deacidification agent and is connected in road.
5. the flue gas purification system of soot burning boiler according to claim 1, it is characterised in that the bag-type dusting
Filter is further provided with the run-down detection means of filter bag.
6. the flue gas purification system of soot burning boiler according to claim 1, it is characterised in that the dust arrester
Inside is provided with emergent gas bypass system.
7. the flue gas purification system of soot burning boiler according to claim 1, it is characterised in that the bag-type dusting
Filter is further connected with compressed air line, and the compressed air line is provided with electromagnetic pulse control valve.
8. the flue gas purification system of soot burning boiler according to claim 1, it is characterised in that the collection of dust arrester
It is provided with inside ash bin outside constant temperature heating device, flue-dust retainer and is provided with attemperator.
9. the flue gas purification system of soot burning boiler according to claim 8, it is characterised in that the heated at constant temperature
Device includes heating rod, temperature measuring probe, thermostatic sensor, and the heating rod and temperature measuring probe are in flue-dust retainer
Portion, the heating rod, temperature measuring probe and thermostatic sensor are electrically connected with.
10. the flue gas purification system of soot burning boiler according to claim 8, it is characterised in that the insulation dress
It is set to insulating foam cotton.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720217931.6U CN206545940U (en) | 2017-03-08 | 2017-03-08 | The flue gas purification system of soot burning boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720217931.6U CN206545940U (en) | 2017-03-08 | 2017-03-08 | The flue gas purification system of soot burning boiler |
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| CN206545940U true CN206545940U (en) | 2017-10-10 |
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| CN201720217931.6U Expired - Fee Related CN206545940U (en) | 2017-03-08 | 2017-03-08 | The flue gas purification system of soot burning boiler |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108031258A (en) * | 2017-12-28 | 2018-05-15 | 赵登强 | A kind of small-sized flue gas processing unit |
| CN108704471A (en) * | 2018-07-31 | 2018-10-26 | 株洲中车南方环保科技有限公司 | A kind of smoke processing system and flue gas processing method for small incinerator |
| CN109464876A (en) * | 2018-12-29 | 2019-03-15 | 广西六万山林业有限公司 | A kind of container glued board processing dust collecting and gas purifying device |
| CN112107948A (en) * | 2020-10-13 | 2020-12-22 | 中国城市建设研究院有限公司 | Wet processing equipment for household garbage incineration flue gas |
| CN114326633A (en) * | 2021-12-31 | 2022-04-12 | 四川红华实业有限公司 | Automatic control method for feeding process |
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2017
- 2017-03-08 CN CN201720217931.6U patent/CN206545940U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108031258A (en) * | 2017-12-28 | 2018-05-15 | 赵登强 | A kind of small-sized flue gas processing unit |
| CN108031258B (en) * | 2017-12-28 | 2020-11-03 | 新沂市新南环保产业技术研究院有限公司 | Small flue gas treatment device |
| CN108704471A (en) * | 2018-07-31 | 2018-10-26 | 株洲中车南方环保科技有限公司 | A kind of smoke processing system and flue gas processing method for small incinerator |
| CN109464876A (en) * | 2018-12-29 | 2019-03-15 | 广西六万山林业有限公司 | A kind of container glued board processing dust collecting and gas purifying device |
| CN112107948A (en) * | 2020-10-13 | 2020-12-22 | 中国城市建设研究院有限公司 | Wet processing equipment for household garbage incineration flue gas |
| CN114326633A (en) * | 2021-12-31 | 2022-04-12 | 四川红华实业有限公司 | Automatic control method for feeding process |
| CN114326633B (en) * | 2021-12-31 | 2024-04-09 | 四川红华实业有限公司 | Automatic control method for feeding process |
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