CN204352744U - A kind of low-temperature flue gas oxidation and denitration system - Google Patents
A kind of low-temperature flue gas oxidation and denitration system Download PDFInfo
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- CN204352744U CN204352744U CN201420813558.7U CN201420813558U CN204352744U CN 204352744 U CN204352744 U CN 204352744U CN 201420813558 U CN201420813558 U CN 201420813558U CN 204352744 U CN204352744 U CN 204352744U
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- flue gas
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000003546 flue gas Substances 0.000 title claims abstract description 43
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 37
- 230000003647 oxidation Effects 0.000 title claims abstract description 34
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 230000001590 oxidative effect Effects 0.000 claims abstract description 31
- 239000007789 gas Substances 0.000 claims abstract description 29
- 239000004155 Chlorine dioxide Substances 0.000 claims abstract description 27
- 238000010521 absorption reaction Methods 0.000 claims abstract description 27
- 235000019398 chlorine dioxide Nutrition 0.000 claims abstract description 24
- 238000005507 spraying Methods 0.000 claims abstract description 22
- 239000007921 spray Substances 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 11
- 239000010808 liquid waste Substances 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000002002 slurry Substances 0.000 description 9
- 239000002250 absorbent Substances 0.000 description 8
- 230000002745 absorbent Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 238000005245 sintering Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 5
- 239000000292 calcium oxide Substances 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 5
- 238000006477 desulfuration reaction Methods 0.000 description 5
- 230000023556 desulfurization Effects 0.000 description 5
- 239000007800 oxidant agent Substances 0.000 description 5
- RAFRTSDUWORDLA-UHFFFAOYSA-N phenyl 3-chloropropanoate Chemical compound ClCCC(=O)OC1=CC=CC=C1 RAFRTSDUWORDLA-UHFFFAOYSA-N 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- ZXTSZWBPUXLRFJ-UHFFFAOYSA-N [Ca].N(=O)O Chemical compound [Ca].N(=O)O ZXTSZWBPUXLRFJ-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 230000003185 calcium uptake Effects 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-N chloric acid Chemical compound OCl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-N 0.000 description 1
- 229940005991 chloric acid Drugs 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 1
- 229960002218 sodium chlorite Drugs 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a kind of low-temperature flue gas oxidation and denitration system, comprise oxidizing tower, oxidizing tower is divided into demist section, spray-absorption section, oxidation panel, the gas approach of oxidation panel divides two-way one tunnel to connect low-temperature flue gas pipe to be clean, leading up to chlorine dioxide blender, chlorine dioxide air blast communicates with chlorine dioxide gas generator, spray-absorption section comprises circulation fluid spraying layer, absorbing liquid spraying layer, absorbing liquid spraying layer connects absorption liquid bath by absorbing liquid spray pump, and circulation fluid spraying layer is communicated with the absorption liquid pool bottom oxidizing tower by oxidation cycle pump.The utility model selects ClO
2gas fully mixes with flue gas, realizes 50 ~ 80 DEG C of low-temperature denitrations, solves waste water handling problem, and the circulationization simultaneously achieving resource utilizes.Denitration efficiency of the present utility model can reach more than 85%.
Description
Technical field
The utility model relates to a kind of coal-fired flue-gas oxidation and denitration system, particularly relates to a kind of low-temperature flue gas oxidation and denitration system, belongs to environmental protection technical field.
Background technology
Containing SO in the flue gas of coal-burning boiler
2, the pollutant such as NOx and heavy metal (Hg and Ag), day by day become the primary pollution source of air and soil pollution." 12 " period, China is NO
xregion overall control scope is included in as the binding indicator.Therefore, NO is increased in existing flue-gas purification equipment
xpurifier, become the inexorable trend of industry.
Research shows, the NOx total amount that in steel plant, various equipment is released accounts for second in fixing occurring source, is only second to SO
2discharge capacity.Wherein, about sintering production process NOx discharge accounts for the half of steel plant's NOx emission total amount.Therefore, to the strict control of sinter fume NOx discharge, the discharge capacity of the NOx of steel mill effectively can be reduced.
Sinter fume is after sinter mixture igniting, the dust-laden exhaust gas produced in high temperature sintering forming process, have that exhaust gas volumn is large, compared with high, flue gas, flue-gas temperature carry that dust is many, water capacity large, in flue gas containing being corrosive and the main feature such as toxic gas.Wherein: SO
2with the change of divergence of NOx concentration with iron ore raw material and fuel, SO
2concentration is generally within the scope of 300 ~ 800ppm, and high reaches 2000 ~ 4000ppm; NOx concentration generally changes within the scope of 150 ~ 300ppm, reaches as high as 500ppm.
In numerous denitration technology, only have SNCR and SCR method to obtain the application of good business at large coal-fired power plant.
SNCR (SNCR method) denitration technology is by NH
3, the reducing agent such as urea sprays in Boiler Furnace and carries out selective reaction with NOx, without catalyst, therefore must add reducing agent in high-temperature region.Reducing agent sprays into the region that fire box temperature is 850 ~ 1100 DEG C, and rapid thermal decomposition becomes NH3, reacts generate N with the NOx in flue gas
2and water, this technology take burner hearth as reactor.The denitration efficiency of SNCR gas denitrifying technology is generally 30% ~ 60%, very large by boiler structure size impact.
SCR selective catalytic reduction (selective catalytic reduction) denitration technology refers under the effect of catalyst, at reaction temperature 320 ~ 450 DEG C.Reducing agent (liquefied ammonia) generates harmless N with the reaction of nitrogen oxides in flue gas
2and water, thus remove the NOx in flue gas.Selectively refer to reducing agent NH
3there is reduction reaction with the NOx in flue gas, and do not react with the oxygen in flue gas.The denitration efficiency of SCR gas denitrifying technology can up to 95%.
Oxidative absorption method utilizes strong oxidizer NO partial oxidation to be become the NO soluble in water of high-valence state
2, then utilize absorbent to NO
2remove, good removal effect can be reached.Conventional oxidant has ozone, chlorine dioxide, hydrogen peroxide, sodium chlorite, clorox, potassium permanganate, chloric acid etc.Conventional absorbent has calcium hydroxide, NaOH, sodium sulfite, urea, ammoniacal liquor etc.Although oxidative absorption method can obtain higher denitration efficiency, but due to oxidant and absorbent price all costly, therefore, need by selecting economical and practical oxidant and absorbent, efficient process system is set, to ensure that oxidative absorption method becomes a kind of denitration technology of efficient, low cost.
SNCR denitration reaction temperature window is 850 DEG C ~ 1100 DEG C, and SCR denitration reaction temperature window is 320 DEG C ~ 450 DEG C.And steel works sintering flue-gas temperature is generally at 120 ~ 150 DEG C, therefore, if adopt SCR technology, also need to carry out heat temperature raising to flue gas, considerably increase operating cost.Therefore, the applicable coal-fired low-temperature denitration of flue gas technology of research is extremely urgent.
Utility model content
The purpose of this utility model overcomes above-mentioned deficiency, and provide a kind of low-temperature flue gas oxidation and denitration system, solves waste water handling problem, and the circulationization simultaneously achieving resource utilizes.
The technical scheme that the utility model is taked is:
A kind of low-temperature flue gas oxidation and denitration system, comprise oxidizing tower, oxidizing tower is divided into demist section, spray-absorption section, oxidation panel, the gas approach of oxidation panel divides two-way one tunnel to connect low-temperature flue gas pipe to be clean, leading up to chlorine dioxide blender, chlorine dioxide air blast communicates with chlorine dioxide gas generator, spray-absorption section comprises circulation fluid spraying layer, absorbing liquid spraying layer, absorbing liquid spraying layer connects absorption liquid bath by absorbing liquid spray pump, and circulation fluid spraying layer is communicated with the absorption liquid pool bottom oxidizing tower by oxidation cycle pump.
Liquid waste discharge pump is connected with bottom described oxidizing tower.
The top of described oxidizing tower is communicated with discharge chimney by exhanst gas outlet.
The aqueous solution being added with calcium oxide in described absorption liquid bath makes absorbent.
The utility model selects ClO
2gas fully mixes with flue gas, is oxidized to by NO and is easy to absorbed NO
2and N
2o
3, realize 50 ~ 80 DEG C of low-temperature denitrations.Select calcium oxide solution cheap and easy to get as absorbent, generate calcium nitrate, calcium nitrite, through removal of impurities, evaporation and concentration, crystallization after nitrous acid calcium solution is saturated, after purification processes, produce calcium nitrite.Thus solving waste water handling problem, the circulationization simultaneously achieving resource utilizes.Denitration efficiency of the present utility model can reach more than 85%.
Advantage of the present utility model is:
(1) ClO is selected
2gas instead of liquid be oxidant based on: chlorine dioxide gas-air mixer is abundant higher than gas-liquid mixing, and the uniformity is high, denitration efficiency is high; Gas-gas haptoreaction speed is fast, and gas-gas method oxidation and denitration reaction time needs about 1s, and oxidation panel only needs the height of 3 meters.Liquid-gas oxidation time is at more than 4s, and the height of oxidation panel needs more than 10m.In addition, liquid oxidation anti-corrosion measure is high; Chlorine Dioxide Gas and NO react the product NO produced
2still exist in gaseous form, then enter absorber portion and be removed.According to liquid spray, HCl and NO that reaction is produced
2once occur, will be dissolved in ClO 2 solution, be formed containing the watery hydrochloric acid of chlorine dioxide and dust technology mixed solution, corrosion is caused to denitrating tower and subsidiary pipeline, pump, and this acid solution be more difficult.
(2) selective oxidation calcium solution as absorbent based on: calcium oxide is cheap and easy to get, and small investment, operating cost are low, efficiency is high, can, simultaneously for flue gas desulfurization, be easy to realize desulfurization and denitrification integral.Have adaptation condition condition ability strong, invest the circulationization that little, that low-loss and energy-saving, efficiency are high and security performance is high technical advantage, particularly byproduct calcium nitrite achieve resource and utilize, simultaneously for enterprise brings newly-increased economic benefit.
(3) the utility model is particularly suitable for sintering machine, Industrial Boiler, furnace flue gas cigarette temperature instability, and the situation that load variations is large, without the requirement of SCR, SNCR reaction temperature window.The utility model proposes low-temperature denitration of flue gas system and can form integration desulfurization denitration technology with Wet Limestone-gypsum flue gas desulfurization.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Wherein 1-oxidizing tower, 2-absorbs liquid pool, 3-liquid waste discharge pump, 4-chlorine dioxide gas generator, 5-chlorine dioxide air blast, 6-chlorine dioxide blender, 7-oxidation cycle pump, 8-absorbing liquid spray pump, 9-absorbs liquid bath, 10-gas approach, 11-circulation fluid spraying layer, 12-absorbing liquid spraying layer, 13-demister, 14-exhanst gas outlet, 15-chimney.
Detailed description of the invention
Further illustrate below in conjunction with detailed description of the invention and embodiment.
As shown in Figure 1, a kind of low-temperature flue gas oxidation and denitration system, comprise oxidizing tower 1, oxidizing tower 1 is divided into demist section, spray-absorption section, oxidation panel, gas approach 10 points of two-way one tunnels of oxidation panel connect low-temperature flue gas pipe to be clean, lead up to chlorine dioxide blender 6, chlorine dioxide air blast 5 communicates with chlorine dioxide gas generator 4, spray-absorption section comprises circulation fluid spraying layer 11, absorbing liquid spraying layer 12, absorbing liquid spraying layer 12 connects absorption liquid bath 9 by absorbing liquid spray pump 8, circulation fluid spraying layer 11 is communicated with the absorption liquid pool 2 bottom oxidizing tower 1 by oxidation cycle pump 7.
Chlorine dioxide and denitration flue gas hybrid reaction before gas approach.Adopt chlorine dioxide and without chlorine dioxide liquid, be abundant in order to mix, react completely.Mixed flue gas enters oxidizing tower 1 from gas approach 10 and oxidation reaction occurs, and NO, at 50 ~ 80 DEG C, is oxidized into NO by reaction temperature
2and N
2o
3.Calcium oxide slurry storage is in slurry tank 9, slurries spray into oxidizing tower through slurries spray pump 8 from slurries spraying layer 12, loop slurry is extracted out in absorbing liquid storage tank 2, sprays into oxidizing tower through oxidation cycle pump 7 from circulation fluid spraying layer 11, and calcium oxide slurries and loop slurry fully absorb the NO after oxidation
2and N
2o
3; Absorbing liquid storage tank 2, liquid waste discharge pump 3 are that absorbing liquid storage and waste liquid discharge section, and the slurries after spray store at absorbing liquid storage tank 2, and major part is used for cyclic absorption spray, and after small part is concentrated, waste liquid discharges process by analysis afterwards.Flue gas after denitration enters chimney 15 through exhanst gas outlet 14 after demister 13 demist.
Embodiment
Illustrate for certain steel works sintering flue gas.Sintering device flue gas is after Limestone-gypsum Wet Flue Gas Desulfurization Process, flue-gas temperature now with denitration is at about 50 DEG C, the chlorine dioxide that chlorine dioxide gas generator 4 produces enters in chlorine dioxide blender 6 through chlorine dioxide air blast 5 drum, chlorine dioxide fully mixes with flue gas, and mixed flue gas enters oxidizing tower 1.NO
xoxidizability control about 50%, ClO in oxidizing tower 1
2nO is oxidized to and is easy to absorbed NO by gas
2and N
2o
3.Absorbent lime liquid is first stored in and absorbs in liquid bath 9, the concentration of controlled oxidization calcium uptake liquid, absorbing liquid sprays into oxidizing tower through absorbing liquid spray pump 8 from absorbing liquid spraying layer 12, extract out in the absorption liquid pool 2 of circulating absorption solution bottom oxidizing tower, spray into oxidizing tower through oxidation cycle pump 7 from circulation fluid spraying layer 11, absorbing liquid and circulating absorption solution fully absorb the NO after oxidation
2and N
2o
3.Complete the neat stress after denitration to remove after droplet through demister 13 and enter chimney 15.In order to ensure spray-absorption effect, the absorbing liquid after spray stores at the absorption liquid pool 2 of bottom, and major part is used for cyclic absorption spray, and after small part is concentrated, waste liquid discharges process by analysis afterwards.Mainly containing calcium nitrite in waste liquid, containing small part calcium nitrate, through removal of impurities, evaporation and concentration, crystallization after nitrous acid calcium solution is saturated, produce solid calcium nitrite after purification processes, residue waste water enters enterprise's cesspool.Thus solve waste water handling problem, the circulationization achieving resource utilizes simultaneously.
Claims (3)
1. a low-temperature flue gas oxidation and denitration system, comprise oxidizing tower, oxidizing tower is divided into demist section, spray-absorption section, oxidation panel, it is characterized in that, the gas approach of oxidation panel divides two-way one tunnel to connect low-temperature flue gas pipe to be clean, leading up to chlorine dioxide blender, chlorine dioxide air blast communicates with chlorine dioxide gas generator, spray-absorption section comprises circulation fluid spraying layer, absorbing liquid spraying layer, absorbing liquid spraying layer connects absorption liquid bath by absorbing liquid spray pump, and circulation fluid spraying layer is communicated with the absorption liquid pool bottom oxidizing tower by oxidation cycle pump.
2. a kind of low-temperature flue gas oxidation and denitration system according to claim 1, is characterized in that, be connected with liquid waste discharge pump bottom described oxidizing tower.
3. a kind of low-temperature flue gas oxidation and denitration system according to claim 1, is characterized in that, the top of described oxidizing tower is communicated with discharge chimney by exhanst gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813558.7U CN204352744U (en) | 2014-12-19 | 2014-12-19 | A kind of low-temperature flue gas oxidation and denitration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813558.7U CN204352744U (en) | 2014-12-19 | 2014-12-19 | A kind of low-temperature flue gas oxidation and denitration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204352744U true CN204352744U (en) | 2015-05-27 |
Family
ID=53254242
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|---|---|---|---|
| CN201420813558.7U Expired - Fee Related CN204352744U (en) | 2014-12-19 | 2014-12-19 | A kind of low-temperature flue gas oxidation and denitration system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437037A (en) * | 2014-12-19 | 2015-03-25 | 山东山大华特环保工程有限公司 | Low-temperature fume oxidizing and denitration method and system |
| CN107789967A (en) * | 2017-11-27 | 2018-03-13 | 江苏垦乐节能环保科技有限公司 | One kind sintering flue gas low-temperature denitrification apparatus and its implementation |
| CN111085100A (en) * | 2019-12-31 | 2020-05-01 | 北京科吉发节能技术有限公司 | Device and method for low-temperature denitration by industrial kiln dry method |
| CN111650972A (en) * | 2020-06-12 | 2020-09-11 | 重庆科技学院 | Multi-component dynamic gas distribution test system with mixer |
-
2014
- 2014-12-19 CN CN201420813558.7U patent/CN204352744U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437037A (en) * | 2014-12-19 | 2015-03-25 | 山东山大华特环保工程有限公司 | Low-temperature fume oxidizing and denitration method and system |
| CN107789967A (en) * | 2017-11-27 | 2018-03-13 | 江苏垦乐节能环保科技有限公司 | One kind sintering flue gas low-temperature denitrification apparatus and its implementation |
| CN107789967B (en) * | 2017-11-27 | 2023-12-08 | 江苏垦乐节能环保科技有限公司 | Sintering flue gas low-temperature denitration device and implementation method thereof |
| CN111085100A (en) * | 2019-12-31 | 2020-05-01 | 北京科吉发节能技术有限公司 | Device and method for low-temperature denitration by industrial kiln dry method |
| CN111650972A (en) * | 2020-06-12 | 2020-09-11 | 重庆科技学院 | Multi-component dynamic gas distribution test system with mixer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 250101 Huate building, Shanda Science Park, Yingxiu Road, high tech Zone, Jinan City, Shandong Province Patentee after: Shandong Shanda Huate Environmental Protection Technology Co.,Ltd. Address before: 250101 Huate building, Shanda Science Park, Yingxiu Road, Lixia District, Jinan City, Shandong Province Patentee before: SHANDONG SHANDA WIT ENVIRONMENTAL ENGINEERING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 250101 Huate building, Shanda Science Park, Yingxiu Road, high tech Zone, Jinan City, Shandong Province Patentee after: Shandong Huate Environmental Protection Technology Co.,Ltd. Address before: 250101 Huate building, Shanda Science Park, Yingxiu Road, high tech Zone, Jinan City, Shandong Province Patentee before: Shandong Shanda Huate Environmental Protection Technology Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 |