CN209564842U - A kind of collaboration of sintering flue gas SCR denitration takes off white device - Google Patents
A kind of collaboration of sintering flue gas SCR denitration takes off white device Download PDFInfo
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- CN209564842U CN209564842U CN201821877882.XU CN201821877882U CN209564842U CN 209564842 U CN209564842 U CN 209564842U CN 201821877882 U CN201821877882 U CN 201821877882U CN 209564842 U CN209564842 U CN 209564842U
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- flue gas
- scr denitration
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- 239000003546 flue gas Substances 0.000 title claims abstract description 91
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 238000005245 sintering Methods 0.000 title claims abstract description 25
- 239000003054 catalyst Substances 0.000 claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 239000002737 fuel gas Substances 0.000 claims abstract description 8
- 230000003068 static effect Effects 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims abstract description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 20
- 229910021529 ammonia Inorganic materials 0.000 claims description 10
- 235000019504 cigarettes Nutrition 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000007800 oxidant agent Substances 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 238000006555 catalytic reaction Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 15
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000009770 conventional sintering Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- MAKDTFFYCIMFQP-UHFFFAOYSA-N titanium tungsten Chemical compound [Ti].[W] MAKDTFFYCIMFQP-UHFFFAOYSA-N 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model relates to a kind of collaborations of sintering flue gas SCR denitration to take off white device, the dedusting demisting integrated apparatus that the place of entrance including the flue gas after wet desulphurization is arranged, the chimney of middle low temperature SCR denitration reactor and smoke outlet；Flue gas heat-exchange unit is set on middle low temperature SCR denitration reactor, layer is reserved from flue gas heat-exchange unit original flue gas gas outlet to fuel gas hot-blast stove, ammonia-spraying grid, static mixer, deflector II, flue gas flow equalizing device, middle low-temperature SCR catalyst layer and catalyst is set gradually between middle low temperature SCR denitration reactor gas outlet, the bottom that the middle low-temperature SCR catalyst layer is located at flue gas flow equalizing device has been sequentially arranged two layers, deflector III is arranged in the lower section that catalyst reserves layer, and the right angle air duct turning before flue gas heat-exchange unit original flue gas air inlet is equipped with deflector I.
Description
Technical field
The utility model belongs to sintering flue gas multi-pollutant control field, and in particular to a kind of sintering flue gas SCR denitration association
It is same to take off white device.
Background technique
In recent years, there is the embarrassed shape of ten faces " haze " volt, concern of the public to atmosphere pollution situation in succession in each big city in the whole nation
Benefit of subsisting increases；The dynamics of state treatment pollution simultaneously is also continuing to increase, and the environmental emission standard of appearance is all the more stringent.Steel
Arch-criminal one of of the industry as atmosphere pollution, the NO that agglomeration for iron mine process generatesXAnd SOXSteel plant NO is accounted for respectivelyXWith
SOXTotal emission volumn about 48%, 51%~62%, is iron and steel metallurgical industry SO2And NOXGreatest contamination object source.Chinese Ministry of Environmental Protection promulgates
GB28662-2012 " steel sintering, pelletizing industrial air pollution object discharge standard " regulation, it is existing from January 1st, 2015
Newly-built sintering device flue gas emission limit is executed by following standard: granular material discharged concentration is less than or equal to 50mg/m3, sulfur dioxide row
Concentration is put less than or equal to 200mg/m3, discharged nitrous oxides concentration is less than or equal to 300mg/m3, fluoride emission concentration is less than or equal to
4mg/m3, dioxin (PCDDs) concentration of emission is less than or equal to 0.5ng-TEQ/m3.Therefore, efficient to sintering flue gas multi-pollutant
It controls extremely urgent.
It is found according to market survey, steel works sintering gas cleaning handles current majority and is limited only to dedusting and desulfurization, to nitrogen
Oxide, fluoride and dioxin etc. do not carry out deep purifying, it is clear that are difficult to reach discharge specified in new environmental protection standard
Limit value requirement.Saturated flue gas after wet desulphurization (contains dissolubility salt, SO3, gel dust, micronic dust etc.-haze it is main at
Point) if being directly discharged from chimney, form the wet plume of white to the cold, to atmosphere cause to be not only vision and also be substantial
Pollution.Further, since the unstability of sintering process and material composition, proportion, causes sintering flue gas to have the diversity of ingredient
And flow, the features such as temperature and pollutant concentration amplitude of variation are larger, traditional denitrating flue gas (such as SNCR) treatment process
It is difficult to adapt to this working condition and meets new environment protection emission limit value requirement.Based on this, need to research and develop a kind of de- in existing wet process
Sintering flue gas denitration collaboration after sulphur takes off white purifying processing device and technique.
Utility model content
It is de- to disclose a kind of sintering flue gas SCR in order to solve the deficiency of conventional sintering smoke treating method for the utility model
Nitre collaboration takes off white device, takes off white purified treatment to the SCR denitration collaboration after sintering smoke wet method sulphur.
Technical solutions of the utility model are as follows: a kind of collaboration of sintering flue gas SCR denitration takes off white device, after wet desulphurization
The dedusting demisting integrated apparatus that the place of entrance of flue gas is arranged, the chimney of middle low temperature SCR denitration reactor and smoke outlet；In
Flue gas heat-exchange unit is set on low temperature SCR denitration reactor, is reacted from flue gas heat-exchange unit original flue gas gas outlet to middle low temperature SCR denitration
Fuel gas hot-blast stove, ammonia-spraying grid, static mixer, deflector II, flue gas flow equalizing device, middle low temperature are set gradually between device gas outlet
SCR catalyst layer and catalyst reserve layer, and the bottom that the middle low-temperature SCR catalyst layer is located at flue gas flow equalizing device is sequentially arranged
Have two layers, deflector III is arranged in the lower section that catalyst reserves layer, the right angle air duct turning before flue gas heat-exchange unit original flue gas air inlet
Place is equipped with deflector I.
Further, the flue gas heat-exchange unit is rotary flue gas heat-exchange unit.
Further, the flue gas flow equalizing device be high temperature resistant three-dimensional porous medium alloy plate, porosity be 60%~
90%.
Further, the ammonia-spraying grid is arranged in parallel and open foraminate stainless steel tube and constitute by more, described
Aperture aperture be 4~20mm, pitch of holes is 150~300mm, opening direction is parallel with flue gas flow direction.
Further, the static mixer is interlocked by multiple groups direction, the low-resistance spoiler of equidistant arrangement is constituted.
Further, the circular arc that the deflector I, deflector II, deflector III are distributed by muti-piece at arithmetic progression
Plate is constituted.
The utility model has the technical effect that the association for realizing nitrogen oxides in sintering flue gas, dioxin and white plume
Same high-efficient purification；It no longer needs to individually to add a set of flue gas and takes off white device, the integration of realization device.Rotary GGH and hot-blast stove
The flue-gas temperature that can guarantee in middle low temperature SCR denitration reactor is catalyzed by afterburning heat riser fuel gas hot-blast stove in middle low-temperature SCR
In the optimum response section of the middle low temperature SCR denitration catalyst of oxidant layer；Meanwhile making full use of the afterburning high temperature before denitration reaction net
Fume afterheat is evaporated dilution to ammonium hydroxide, so that the ammonia concentration in flue gas is reached SCR denitration requirement, has saved system energy and disappeared
Consumption.Sintering flue gas SCR denitration collaboration take off white device and process runs well, efficiently, it is reliable, pollutant in sintering flue gas can be made
Reach the requirement of gradually stringent discharge standard and environmental regulation.
Detailed description of the invention
Fig. 1 is the system construction drawing of the utility model；
In figure: 1- dedusting demisting integrated apparatus, 2- deflector I, 3- fuel gas hot-blast stove, 4- ammonia-spraying grid, 5- static state are mixed
Clutch, 6- deflector II, 7- flue gas flow equalizing device, low-temperature SCR catalyst layer in 8-, low temperature SCR denitration reactor in 9-, 10- are urged
Agent reserves layer, 11- flue gas heat-exchange unit (GGH), 12- deflector III.
Specific embodiment
In order to illustrate the specific implementation step of the utility model more vividly, will make in conjunction with attached drawing further below
Explanation.Referring to attached drawing, the SCR denitration collaboration after a kind of sintering smoke wet method sulphur takes off white purification process technique and device, mainly
Include dedusting demisting integrated apparatus 1, flue gas heat-exchange unit 11, fuel gas hot-blast stove 3, ammonia-spraying grid 4, middle low-temperature SCR catalyst layer
8, middle low temperature SCR denitration reactor 9, the flue gas heat-exchange unit 11 is rotary flue gas heat-exchange unit, since rotary flue gas changes
Hot device heat exchange element is high, corrosion-resistant with heat exchange property, is not easy stifled ash etc.；It no longer needs to individually to add a set of flue gas and takes off white device,
Achievable denitration takes off the integration of white synergistic purification, device.
Wet desulphurization is equipped with a set of dedusting demisting integrated apparatus 1 between being exported to rotary GGH11 original smoke air inlet, from
Rotary GGH11 original flue gas gas outlet between middle 9 gas outlet of low temperature SCR denitration reactor include fuel gas hot-blast stove 3, ammonia-spraying grid
4, static mixer 5, deflector II 6, flue gas flow equalizing device 7, middle low-temperature SCR catalyst layer 8 and catalyst reserve layer 10 etc..It should
Integrated apparatus can realize the multi-pollutants collaboration high-efficient purification processing such as nitrogen oxides, dioxin, white plume, specific implementation step
It is rapid as follows:
(1) flue gas after wet desulphurization is initially entered dedusting demisting integrated apparatus 1 and (is removed using condensation wet film centrifugal dust-removing
Mist technology), remove particulate matter, the soluble salt (CaSO in flue gas4、CaSO3Deng) and drop, it can effectively reduce GGH 11 and exchange heat member
Dust stratification on part.It is straight before GGH11 original flue gas air inlet to be uniformly distributed the air-flow into GGH11 heat exchange element section
Angle air duct turning is equipped with deflector I 2, into the flue gas of GGH11, under its 100% load condition, and 50 DEG C of low temperature original flue gases
It is heated up to 240 DEG C.
(2) GGH11 original flue gas gas outlet is connected with middle 9 air inlet of low temperature SCR denitration reactor.Middle low temperature SCR denitration is anti-
Flue gas afterburning heat riser fuel gas hot-blast stove 3 is provided in air duct before answering 9 air inlet of device, it will be after GGH11 primary heating
Former flue gas carries out reheating and is warming up to 280 DEG C (in order to which efficient catalytic decomposes dioxin；Another part afterburning flue gas is used for ammonia
Water evaporation dilution reduces system energy consumption)；Then ammonia of the volumetric concentration uniformly ejected with ammonia-spraying grid 4 less than 5%
Gas is tentatively pre-mixed.Ammonia-spraying grid 4 be it is arranged in parallel and open foraminate stainless steel tube and constitute by many, aperture 4~
20mm, 150~300mm of pitch of holes, opening direction are parallel with flue gas flow direction.
(3) by heating and spraying twice 9 air inlet of low temperature SCR denitration reactor in the former flue gas entrance that ammonia is tentatively pre-mixed
In the buffering air duct of front end, mix the flue gas/ammonia being tentatively pre-mixed uniformly by static mixer 5 first；Then
Mixed flue gas by deflector II 6, flue gas again by uniform divided flows, make to enter in front of 9 section of low temperature SCR denitration reactor
Air-flow is uniformly distributed.Static mixer 5 is made of the interlock low-resistance spoiler of equidistant arrangement of several groups direction, and structure is simple,
The ammonia and NO made in flue gas is may be implemented in relatively short distanceXIt is sufficiently mixed；Deflector I 2, deflector II 6, deflector III 12
It is made of muti-piece at the arc plate that arithmetic progression is distributed.
Mixed flue gas enter in low temperature SCR denitration reactor 9, by its internal flue gas flow equalizing device 7 make flue gas/ammonia into
Row is sufficiently flowed again, is mixed.Flue gas flow equalizing device 7 be high temperature resistant three-dimensional porous medium alloy plate, porosity be 60%~
90%.
It is disposed with low-temperature SCR catalyst layer 8 and one layer of catalyst in 2 layers in middle low temperature SCR denitration reactor 9 and reserves layer
10.Flue gas/ammonia after evenly mixing is through low-temperature SCR catalyst layer 8, NH in the entrance of flue gas flow equalizing device 73With the NO in flue gasXIn
It is chemically reacted under the action of catalyst, generates nitrogen and vapor.Middle low-temperature SCR selective reduction denitration primary chemical is anti-
Answer formula as follows:
4NO+4NH3+O2→4N2+6H2O
2NO2+4NH3+O2→3N2+6H2O
The desulfurization and dedusting denitrating technique can realize that the escaping of ammonia rate is lower than 5ppm, and denitration efficiency > 95% at this time；SO2/SO3
< 0.5%.
Patent No. ZL2012 10167211.5 (a kind of SCR catalyst for denitrating flue gas and its raw material can be used in denitrating catalyst
The preparation method of titanium tungsten) or patent No. ZL2011 10149575.6 (a kind of surface deposition honeycomb flue gas denitration catalyst and
Preparation method) or patent No. ZL 2,009 10145015.6 (a kind of low-temperature selective catalytic reduction denitration catalyst and its system
One of Preparation Method).
When catalyst reaches or approaches service life, it can be reserved in catalyst and new catalyst is installed on layer 10, to
Ensure denitration efficiency.
(4) flue gas that therefrom low temperature SCR denitration reactor 9 comes out is known as neat stress, and neat stress temperature still also maintains at this time
At 280 DEG C or so, it is then again introduced into GGH11, incipient low temperature original cigarette by recycle heat is passed to by heat exchange element
Gas, neat stress temperature are down to 96 DEG C or so and (are higher than 15~20 DEG C of flue gas dew point, chimney rain and big white cigarette can be effectively prevent to trail existing
As).Finally, the neat stress after cooling is discharged by the exhanst gas outlet that deflector III 12 drains into chimney through air-introduced machine, realizes and burn
Tie the purified treatment of flue gas.
(5) since the flue gas in entrance in low-temperature SCR catalyst layer 8/ammonia mixing uniformity determines the height of denitration efficiency
It is low, patent-Air Distribution in Bag-filter multi-parameters optimization method (publication number CN105912745A) is utilized in this process equipment
In Fluid Mechanics Computation (CFD) method carry out numerical simulation of optimum design.
Claims (6)
1. a kind of sintering flue gas SCR denitration collaboration takes off white device, it is characterised in that: at the entrance including the flue gas after wet desulphurization
The dedusting demisting integrated apparatus (1) of setting, the chimney of middle low temperature SCR denitration reactor (9) and smoke outlet；Middle low temperature
Flue gas heat-exchange unit (11) are set on SCR denitration reaction device (9), from the former flue gas gas outlet of flue gas heat-exchange unit (11) to middle low-temperature SCR
Fuel gas hot-blast stove (3), ammonia-spraying grid (4), static mixer (5), deflector II are set gradually between Benitration reactor (9) gas outlet
(6), flue gas flow equalizing device (7), middle low-temperature SCR catalyst layer (8) and catalyst reserve layer (10), the middle low-temperature SCR catalysis
The bottom that oxidant layer (8) is located at flue gas flow equalizing device (7) has been sequentially arranged two layers, and catalyst reserves the lower section setting deflector of layer (10)
III (12), the right angle air duct turning before flue gas heat-exchange unit (11) original flue gas air inlet are equipped with deflector I (2).
2. a kind of sintering flue gas SCR denitration collaboration according to claim 1 takes off white device, it is characterised in that: the cigarette
Gas heat exchanger (11) is rotary flue gas heat-exchange unit.
3. a kind of sintering flue gas SCR denitration collaboration according to claim 1 takes off white device, it is characterised in that: the cigarette
Gas current equalizer (7) is high temperature resistant three-dimensional porous medium alloy plate, and porosity is 60%~90%.
4. a kind of sintering flue gas SCR denitration collaboration according to claim 1 takes off white device, it is characterised in that: the spray
Ammonia grid (4) be it is arranged in parallel and open foraminate stainless steel tube and constitute by more, the aperture of the aperture be 4~20mm,
Pitch of holes is 150~300mm, and opening direction is parallel with flue gas flow direction.
5. a kind of sintering flue gas SCR denitration collaboration according to claim 1 takes off white device, it is characterised in that: described is quiet
State mixer (5) is interlocked by multiple groups direction, the low-resistance spoiler of equidistant arrangement is constituted.
6. a kind of sintering flue gas SCR denitration collaboration according to claim 1 takes off white device, it is characterised in that: described leads
Flowing plate I (2), deflector II (6), deflector III (12) are made of muti-piece at the arc plate that arithmetic progression is distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821877882.XU CN209564842U (en) | 2018-11-15 | 2018-11-15 | A kind of collaboration of sintering flue gas SCR denitration takes off white device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821877882.XU CN209564842U (en) | 2018-11-15 | 2018-11-15 | A kind of collaboration of sintering flue gas SCR denitration takes off white device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109364742A (en) * | 2018-11-15 | 2019-02-22 | 安徽威达环保科技股份有限公司 | A kind of collaboration of sintering flue gas SCR denitration takes off white device and technique |
| CN111036072A (en) * | 2019-12-13 | 2020-04-21 | 西安润川环保科技有限公司 | Flue gas treatment system |
| CN111644029A (en) * | 2020-05-19 | 2020-09-11 | 西安润川环保科技有限公司 | Low-temperature denitration, dedusting and whitening process device after wet desulphurization |
-
2018
- 2018-11-15 CN CN201821877882.XU patent/CN209564842U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109364742A (en) * | 2018-11-15 | 2019-02-22 | 安徽威达环保科技股份有限公司 | A kind of collaboration of sintering flue gas SCR denitration takes off white device and technique |
| CN111036072A (en) * | 2019-12-13 | 2020-04-21 | 西安润川环保科技有限公司 | Flue gas treatment system |
| CN111644029A (en) * | 2020-05-19 | 2020-09-11 | 西安润川环保科技有限公司 | Low-temperature denitration, dedusting and whitening process device after wet desulphurization |
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Denomination of utility model: A kind of SCR denitration collaborative de whitening device for sintering flue gas Effective date of registration: 20200928 Granted publication date: 20191101 Pledgee: Hanshan Tongda Financing Guarantee Co.,Ltd. Pledgor: ANHUI WEIDA ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2020980006534 |
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Date of cancellation: 20230327 Granted publication date: 20191101 Pledgee: Hanshan Tongda Financing Guarantee Co.,Ltd. Pledgor: ANHUI WEIDA ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2020980006534 |