CN207493486U - A kind of desulfurization of coke oven flue gas and de-dusting de-nitration integrated - Google Patents
A kind of desulfurization of coke oven flue gas and de-dusting de-nitration integrated Download PDFInfo
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- CN207493486U CN207493486U CN201721534964.XU CN201721534964U CN207493486U CN 207493486 U CN207493486 U CN 207493486U CN 201721534964 U CN201721534964 U CN 201721534964U CN 207493486 U CN207493486 U CN 207493486U
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- dusting
- flue gas
- desulfurization
- coke oven
- gas
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 239000003546 flue gas Substances 0.000 title claims abstract description 73
- 238000010410 dusting Methods 0.000 title claims abstract description 37
- 238000006396 nitration reaction Methods 0.000 title claims abstract description 37
- 230000003009 desulfurizing Effects 0.000 title claims abstract description 34
- 239000000571 coke Substances 0.000 title claims abstract description 31
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 30
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000007789 gas Substances 0.000 claims abstract description 19
- 238000005507 spraying Methods 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 18
- 239000000779 smoke Substances 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 239000003517 fume Substances 0.000 claims abstract description 4
- 239000003054 catalyst Substances 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 12
- 238000010790 dilution Methods 0.000 claims description 5
- 230000003197 catalytic Effects 0.000 claims description 4
- 239000006200 vaporizer Substances 0.000 claims description 4
- 210000003128 Head Anatomy 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 10
- GBAOBIBJACZTNA-UHFFFAOYSA-L Calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 8
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L Calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 7
- 229910052925 anhydrite Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L Calcium hydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitrogen oxide Substances O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 4
- 239000000920 calcium hydroxide Substances 0.000 description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000004939 coking Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N sulfonic acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 3
- BIGPRXCJEDHCLP-UHFFFAOYSA-N Ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 2
- 229910002089 NOx Inorganic materials 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N Potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000002378 acidificating Effects 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000005712 crystallization Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052813 nitrogen oxide Inorganic materials 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative Effects 0.000 description 2
- 239000003638 reducing agent Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 206010060708 Induration Diseases 0.000 description 1
- 208000009146 Rhinoscleroma Diseases 0.000 description 1
- 235000015450 Tilia cordata Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003044 adaptive Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 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
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Abstract
The utility model belongs to the environmental technology field of gas cleaning and the utilization of resources, desulfurization and de-dusting de-nitration integrated more particularly to a kind of coke oven flue gas, technical problem to be solved are to provide that a kind of applicability is wide, safe and reliable, feasibility is strong, denitrification efficiency is high, the escaping of ammonia rate is low, without discharging of waste liquid, the desulfurization for the coke oven flue gas that heat utilization ratio is high, operating cost is low and de-dusting de-nitration integrated；Including rotary spraying and drying tower, de-dusting de-nitration integrated, hot-blast stove, for ammonia device and main induced draft fan, the smoke inlet connection coke oven flue of the rotary spraying and drying tower, the outlet flue of the rotary spraying and drying tower connects the desulfurization fume import of the de-dusting de-nitration integrated, the ammon entry hole of the de-dusting de-nitration integrated is connect with the ammonia-gas spraying device, and the analysis gas inlet of the de-dusting de-nitration integrated is connect with the analytical gas outlet of the hot-blast stove；The utility model is widely used in coke oven flue gas desulphurization denitration technical field.
Description
Technical field
The invention belongs to the environmental technology fields of gas cleaning and the utilization of resources, and in particular to a kind of desulfurization of coke oven flue gas
And de-dusting de-nitration integrated.
Background technology
The atmosphere pollution of coke oven smoke stack emission is the exhaust gas generated after coke-stove gas burning, mainly there is SO2, NOx and cigarette
Dirt etc., pollutant are to pollute one of industry the most serious in overhead point source continuity discharge in a organized way.As country is to air
The pay attention to day by day of pollution control, the improvement of coke oven flue gas pollutant are extremely urgent.Foundation《Coking chemistry emission of industrial pollutants
Standard（GB16171-2012）》Regulation, from 1 day January in 2015, existing coal chemical enterprise need to perform particle concentration 30mg/m3、
Sulfur dioxide 50mg/m3, nitrogen oxides 500mg/m3Emission limit, according to this standard only have a small number of enterprises can be up to standard.Usually
After desulfurization and dedusting, particulate matter and sulfur dioxide can reach discharge standard.But for " atmosphere pollution is especially arranged as defined in standard
Put limit value ", coke oven chimney emission limits of nitrogen oxides is set in 150mg/m3, if existing and newly-built coke oven takes no action to,
Flue gas can not qualified discharge.The improvement of coke oven flue gas should take off desulfurization under the premise of coke oven normal operation is not influenced as possible
Nitre efficiency of dust collection meets the discharge standard of country and coking industry.
For existing coal-burning power plant SCR flue-gas denitration process mostly using high dirt arrangement, i.e. SCR reactors are arranged in boiler
Between economizer and air preheater, the flue gas drawn from boiler economizer enters air preheater after SCR reactors.And
Dust is mainly coal dust and burnt dirt in coking flue gas, and content is high, complicated component, according to high dirt arrangement, easily causes and urges
Agent blocks, abrasion and alkali metal are poisoned, and blowing out can be caused when serious, causes heavy losses.
Utility model content
The utility model intends to solve the technical problem by providing a kind of applicability is wide, safe and reliable, feasibility is strong, desulfurization takes off
Nitre is efficient, the escaping of ammonia rate is low, desulfurization and dedusting without discharging of waste liquid, the coke oven flue gas that heat utilization ratio is high, operating cost is low
Denitrification integrated device.
In order to solve the above-mentioned technical problem, technical solution is used by the utility model：A kind of desulfurization of coke oven flue gas
And de-dusting de-nitration integrated, including rotary spraying and drying tower, de-dusting de-nitration integrated, hot-blast stove, for ammonia device and
Main induced draft fan, the smoke inlet connection coke oven flue of the rotary spraying and drying tower, the outlet flue of the rotary spraying and drying tower connect
Connect the desulfurization fume import of the de-dusting de-nitration integrated, the ammon entry hole of the de-dusting de-nitration integrated and the confession
Ammonia device connects, and the analysis gas inlet of the de-dusting de-nitration integrated is connect with the analytical gas outlet of the hot-blast stove, institute
State de-dusting de-nitration integrated net mouth be connected with main induced draft fan by the clean flue gas after desulphurization denitration from coke oven chimney arrange
Go out.
Flue gas distributor is provided on the rotary spraying and drying tower smoke inlet.
It is described to include ammonia vaporizer and dilution air for ammonia device.
Ammonia vapour/flue gas mixer is provided in the de-dusting de-nitration integrated, by the dedusting flue gas of bag-type dust
It is sufficiently mixed with the ammonia vapour being sent into for ammonia device, mixed gas then is sent into denitration catalyst room carries out catalytic denitration.
The parameter of the main induced draft fan is exhaust gas volumn 150000Nm3/ h, 250 DEG C of flue-gas temperature, fan delivery 300000m3/
H, fan pressure head 4500Pa, power of motor 800kW.
The parameter exhaust gas volumn 150000Nm3/h of the rotary spraying and drying tower, flue gas flow rate 1.1m/s, gas residence time
1.14S, desulfurizing tower diameter 7m, desulfurization tower height degree 13m, atomizer power 75kW.
As described above, the utility model has the advantages that compared with prior art.
1st, the present invention removes the particulate matter for being stained with the goos such as tar from coke oven flue gas, so as to effectively protect denitration
Catalyst, guarantee system can for a long time, stablize, safely run.
2nd, when coke oven carries out heating commutation, sulfur dioxide, oxynitrides in exhaust gas volumn and flue gas, dust concentration are equal
There is fluctuation, the desulphurization denitration treatment process that this programme uses has very strong adaptive ability, can meet different operating mode pollutions
The coke oven flue gas process demand of object concentration, device front end coke oven main chimney flue flue gas, which takes, is provided with pneumatic control valve door at wind point,
Can control valve be interlocked according to main chimney flue pressure.
3rd, dedusting before denitration reduces abrasion of the dust in flue gas when by denitration catalyst oxidant layer to catalyst surface,
The service life of denitrating catalyst can effectively be extended, reduce the dosage of denitrating catalyst, while can be omitted traditional
Catalyst soot cleaning system.
4th, ammonia thermal decomposition integrated structure type is sprayed using dedusting denitration, utilizes dedusting filtering bag filter layer and current equalizing structure body
Current balance function realizes flue gas being evenly distributed on denitrating catalyst cross section, makes velocity of flue gas field, thermo parameters method more uniform,
Further improve denitration efficiency.
5th, flue gas first passes through desulfurization process, the SO when entering catalytic denitration2Content is extremely low.Can effectively it inhibit in denitrification process
The production quantity of ammonium hydrogen sulfate prevents ammonium hydrogen sulfate from being condensed when flue-gas temperature is reduced to below 230 DEG C and is attached on catalyst table
Face reduces denitrating catalyst denitration efficiency.Whole process flue-gas temperature is significantly larger than aqueous dew point temperature and acid dew-point temperature always, because
This will not generate corrosion phenomenon.
6th, the solid waste main ingredient that the present invention generates is CaSO3、CaSO4Innocuous substances are waited, environment will not be caused to endanger
Evil.CaSO3As hemihydrate CaSO3•1/2H2O exists, and when being contacted with air and moisture, hemihydrate gradually changes
For CaSO4•2H2O.At 380 DEG C to 410 DEG C, it releases its crystallization water, temperature be more than 600 DEG C when it be decomposed into again CaO and
SO2.Contained unreacted CaO and Ca (OH) in Desulphurization2It can make desulfurization grey induration, with CO in air2Reaction generation stabilization
CaCO3.The alkalinity and scleroma property of Desulphurization are to preventing stacking field underground water pollution from having very big help.The alkalinity of Desulphurization makes its heavy
Metal is not easy to be precipitated, and characteristic of hardening is so that the impermeable characteristic for stacking layer bottom is greatly improved.In America and Europe, the ring of many countries
Guarantor department ratifies the Desulphurization air storage of dry desulfurization.
First, technological principle of the invention
1.1 SDA tower semi-dry desulphurization principles
Former flue gas enters SDA towers by flue gas distributor, and the sulfur dioxide in fluidised material and flue gas is in desulfurizing tower
In with tiny lime slurry（50 microns of average droplet size）It chemically reacts, the acidic components in flue gas are tiny rapidly
Research and development drop neutralize.Meanwhile moisture therein is also evaporated, and rationally controls smoke distribution, slurry flow and drop size, with
Ensure that drop is dried before spray dry absorbingatreatingastep tower tower wall is contacted.
A part of desciccate including flying dust and absorbing reaction product, falls into absorb the bottom of the tower, into dust delivery system
System.The flue gas that reaction is completed in tower enters bag filter, and solid particle is collected.
When atomized water is atomized, and come into full contact with flue gas by reverse-flow type atomizer in desulfurizing tower, flue gas cools down simultaneously
Humidification, the same H of calcium hydroxide powder particles2O、SO2、H2SO3Reaction generation dry-powder product, entire reaction are divided into gas phase, liquid phase and solid phase
Three kinds of state responses, reaction step and equation are as follows：
（1）SO2 is by drop absorption；SO2(gas)+H2O→H2SO3(liquid)；
（2）The SO of absorption2With the absorbent slaked lime powder reaction generation calcium sulfite of solution；
Ca(OH)2(liquid)+H2SO3(liquid) → CaSO3(liquid)+2H2O；
Ca(OH)2(Gu)+H2SO3(liquid) → CaSO3(liquid)+2H2O；
（3）CaSO in drop3After reaching saturation, that is, start crystallization and be precipitated；CaSO3(liquid) → CaSO3(Gu)；
（4）CaSO in part solution3It is reacted with the oxygen being dissolved in drop, is oxidized to calcium sulfate, CaSO3(liquid)+1/2O2
(liquid) → CaSO4(liquid)；
（5）CaSO4(liquid) solubility is low, is precipitated so as to crystallize；CaSO4(liquid) → CaSO4(Gu).
1.2 denitration principles
Dedusting denitration unit is with ammonia (NH3) for reducing agent, under low-temperature SCR catalyst effect with the NO in flue gasXReaction,
Generate N2And H2O realizes NOXRemoving, and control NH3Escapement ratio.More than 90% NOx is existed in the form of NO in flue gas.NH3
Selectively and NOXThe N of reaction generation non-secondary pollution2And H2O is with flue gas emission.
Former flue gas enters SDA towers by flue gas distributor, and the acidic components in flue gas are rapidly by tiny research and development drop
With.Meanwhile moisture therein is also evaporated, a part of desciccate, including flying dust and absorbing reaction product, falls into absorption tower bottom
Portion, into dust transport system.The flue gas that reaction is completed in tower enters bag filter, and solid particle is collected.
The flue-gas temperature after desulfurization and dedusting is completed to control at 180-200 DEG C.Into de-dusting de-nitration integrated, flue gas
First through bag-type dust in de-dusting de-nitration integrated, the flue gas after dedusting and the reducing agent for ammonia device addition（Ammonia）It fills
Divide mixing.Mixed flue gas enters denitration catalyst oxidant layer, and denitration reaction occurs under catalyst action, removes NOX；After purification
Clean flue gas pass through smoke stack emission.Coal gas hot-blast stove by de-dusting de-nitration integrated is set, periodically catalyst is carried out
On-line heating is, it can be achieved that the active regeneration of catalyst.
Inventive desulfurization unit includes：SDA towers, slurrying unit, loop slurry unit.Dedusting denitration unit is removed including denitration
Dirt integrated apparatus, hot-blast stove, ammonia unit.When low-temperature SCR catalyst service life is 24000, design denitration efficiency is not small
In 85%.Flue gas air heating furnace regenerates 1 time every year according to operating condition, about 10h/ of each recovery time storehouse.Ammonia unit is vaporized by ammonia
Device, dilution air, ammonia/flue gas gaseous mixture form, and ammonium hydroxide pumping ammonia vaporizer is evaporated to ammonia vapour in ammonia vessel, through outside line pipeline
It send to ammonia/flue gas mixer；Clean flue gas after main air blower is sent ammonia/flue gas mixer that the two is fully mixed by dilution air
It closes, imports in Benitration reactor.
Description of the drawings
The utility model is described further below in conjunction with the accompanying drawings.
Fig. 1 is the utility model structure chart.
Specific embodiment
As shown in Figure 1, desulfurization and the de-dusting de-nitration integrated of a kind of coke oven flue gas, including rotary spraying and drying tower,
De-dusting de-nitration integrated, hot-blast stove, for ammonia device and main induced draft fan, the smoke inlet connection of the rotary spraying and drying tower is burnt
Stove flue, the outlet flue of the rotary spraying and drying tower connect the desulfurization fume import of the de-dusting de-nitration integrated, institute
The ammon entry hole for stating de-dusting de-nitration integrated is connect with described for ammonia device, the resolution gas of the de-dusting de-nitration integrated
Entrance is connect with the analytical gas outlet of the hot-blast stove, and the net mouth of the de-dusting de-nitration integrated is connected with main induced draft fan
Clean flue gas after desulphurization denitration is discharged from coke oven chimney.
Flue gas distributor is provided on the rotary spraying and drying tower smoke inlet.
It is described to include ammonia vaporizer and dilution air for ammonia device.
Ammonia vapour/flue gas mixer is provided in the de-dusting de-nitration integrated, by the dedusting flue gas of bag-type dust
It is sufficiently mixed with the ammonia vapour being sent into for ammonia device, mixed gas then is sent into denitration catalyst room carries out catalytic denitration.
The parameter of the main induced draft fan is exhaust gas volumn 150000Nm3/ h, 250 DEG C of flue-gas temperature, fan delivery 300000m3/
H, fan pressure head 4500Pa, power of motor 800kW.
The parameter exhaust gas volumn 150000Nm3/h of the rotary spraying and drying tower, flue gas flow rate 1.1m/s, gas residence time
1.14S, desulfurizing tower diameter 7m, desulfurization tower height degree 13m, atomizer power 75kW.
The merely exemplary principle and its effect for illustrating the utility model of the above embodiment is new not for this practicality is limited
Type.Person skilled in the art can all repair above-described embodiment under the spirit and scope without prejudice to the utility model
Decorations improve.Therefore, all lift in the technical field has usually intellectual without departing from the revealed spirit of the utility model
With all equivalent modifications completed under technological thought or change, should be covered by the claim of the utility model.
Claims (6)
1. desulfurization and the de-dusting de-nitration integrated of a kind of coke oven flue gas, it is characterised in that：Including rotary spraying and drying tower, remove
Dirt denitrification integrated device, hot-blast stove, for ammonia device and main induced draft fan, the smoke inlet connection coke oven of the rotary spraying and drying tower
Flue, the outlet flue of the rotary spraying and drying tower connects the desulfurization fume import of the de-dusting de-nitration integrated, described
The ammon entry hole of de-dusting de-nitration integrated is connect with described for ammonia device, and the resolution gas of the de-dusting de-nitration integrated enters
Mouthful connect with the analytical gas outlet of the hot-blast stove, the net mouth of the de-dusting de-nitration integrated be connected with main induced draft fan by
Clean flue gas after desulphurization denitration is discharged from coke oven chimney.
2. desulfurization and the de-dusting de-nitration integrated of a kind of coke oven flue gas according to claim 1, it is characterised in that：Institute
It states and is provided with flue gas distributor on rotary spraying and drying tower smoke inlet.
3. desulfurization and the de-dusting de-nitration integrated of a kind of coke oven flue gas according to claim 1, it is characterised in that：Institute
It states and includes ammonia vaporizer and dilution air for ammonia device.
4. desulfurization and the de-dusting de-nitration integrated of a kind of coke oven flue gas according to claim 1, it is characterised in that：Institute
It states and ammonia vapour/flue gas mixer is provided in de-dusting de-nitration integrated, the dedusting flue gas of bag-type dust is supplied into ammonia with described
The ammonia vapour that device is sent into is sufficiently mixed, and mixed gas then is sent into denitration catalyst room carries out catalytic denitration.
5. desulfurization and the de-dusting de-nitration integrated of a kind of coke oven flue gas according to claim 1, it is characterised in that：Institute
The parameter for stating main induced draft fan is exhaust gas volumn 150000Nm3/ h, 250 DEG C of flue-gas temperature, fan delivery 300000m3/ h, fan pressure head
4500Pa, power of motor 800kW.
6. desulfurization and the de-dusting de-nitration integrated of a kind of coke oven flue gas according to claim 1, it is characterised in that：Institute
State parameter the exhaust gas volumn 150000Nm3/h, flue gas flow rate 1.1m/s, gas residence time 1.14S of rotary spraying and drying tower, desulfurization
Tower diameter 7m, desulfurization tower height degree 13m, atomizer power 75kW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721534964.XU CN207493486U (en) | 2017-11-17 | 2017-11-17 | A kind of desulfurization of coke oven flue gas and de-dusting de-nitration integrated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721534964.XU CN207493486U (en) | 2017-11-17 | 2017-11-17 | A kind of desulfurization of coke oven flue gas and de-dusting de-nitration integrated |
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| CN207493486U true CN207493486U (en) | 2018-06-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109266400A (en) * | 2018-09-30 | 2019-01-25 | 垣曲县五龙镁业有限责任公司 | A kind of oven gas negative pressure low-temp desulfurization deamination integrated apparatus |
-
2017
- 2017-11-17 CN CN201721534964.XU patent/CN207493486U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109266400A (en) * | 2018-09-30 | 2019-01-25 | 垣曲县五龙镁业有限责任公司 | A kind of oven gas negative pressure low-temp desulfurization deamination integrated apparatus |
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