CN201728048U - Nitrogen oxide waste gas purification treatment device - Google Patents
Nitrogen oxide waste gas purification treatment device Download PDFInfo
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- CN201728048U CN201728048U CN2010202961585U CN201020296158U CN201728048U CN 201728048 U CN201728048 U CN 201728048U CN 2010202961585 U CN2010202961585 U CN 2010202961585U CN 201020296158 U CN201020296158 U CN 201020296158U CN 201728048 U CN201728048 U CN 201728048U
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- Prior art keywords
- heat exchanger
- ammonia
- pipeline
- waste gas
- connects
- 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
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 239000002912 waste gas Substances 0.000 title claims abstract description 25
- 238000000746 purification Methods 0.000 title claims abstract description 19
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000003054 catalyst Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000007921 spray Substances 0.000 claims abstract description 21
- 230000003197 catalytic effect Effects 0.000 claims abstract description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003546 flue gas Substances 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 13
- 239000000779 smoke Substances 0.000 claims abstract description 11
- 229910021529 ammonia Inorganic materials 0.000 claims description 37
- 238000001816 cooling Methods 0.000 claims description 32
- 238000005485 electric heating Methods 0.000 claims description 24
- 235000019504 cigarettes Nutrition 0.000 claims description 15
- 239000003517 fume Substances 0.000 claims description 13
- 238000011010 flushing procedure Methods 0.000 claims description 11
- 235000014653 Carica parviflora Nutrition 0.000 claims description 8
- 241000243321 Cnidaria Species 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 238000010531 catalytic reduction reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model discloses a nitrogen oxide waste gas purification treatment device, a waste gas smoke pipe is connected with a smoke inlet pipe through a valve, and an ammonia gas spray device and a fire arrestor are arranged in the smoke inlet pipe; an outlet of the smoke inlet pipe is connected with a smoke inlet nozzle of a heat exchanger, a middle smoke outlet of the heat exchanger is connected with a gas inlet of a catalytic reactor, a gas outlet of a catalytic reactor is connected with a middle smoke inlet of the heat exchanger, and a smoke outlet nozzle at the tail end of the heat exchanger is connected with a chimney via a pipeline through an induced draft fan; a liquid ammonia outlet of a liquid ammonia storage tank is connected with an ammonia gas inlet of a hot water heat exchanger by the pipeline; and an ammonia gas outlet of the hot water heat exchanger is connected with a gas inlet pipe of the ammonia gas spray device. The nitrogen oxide waste gas purification treatment device directly uses liquid ammonia, has fast rate of the reactor, a small using quantity of catalyst, low requirements on the temperature of flue gas and low energy consumption, and can achieve and exceed the requirements of NOx waste gas emission standard of industrial furnaces. The nitrogen oxide waste gas purification treatment device has simple structure, low cost, small occupied area, short process flow, small resistance and low running cost, and is more applicable to melting furnaces of glassworks, catalyst generation furnaces and other medium and small industrial furnaces.
Description
Technical field
The utility model relates to the waste gas purification treatment facility of Industrial Stoves nitrogen oxide.
Background technology
Nitrogen oxide be atmosphere pollution mainly contain one of harmful substances, very harmful to human body, also can bring out photochemical fog and cause acid rain to form.Power plant boiler, glass factory's calciner, steel plant's smelting furnace, catalyst generate Industrial Stoves a large amount of harmful substances such as nitrogen oxide NOx of generation when producing such as stove.Improvement to nitrogen oxide NOx waste gas has two kinds of methods of dried wet method at present, and it is few that wet processing has an equipment investment, but purification efficiency is low, has shortcomings such as second pollution of wastewater.Dry method mainly contains two kinds of SNCR method, selective catalytic reductions, and there is denitration rate low (＜80%) in the SNCR method, the shortcomings such as (870 ℃～1200 ℃) that requires the flue-gas temperature height, not only is difficult to realize, and wastes energy.Selective catalytic reduction has high denitration rate and to the adaptable advantage of flue gas, be widely used, it is the reducing agent with ammonia or urea and so on, effect by catalyst at a certain temperature, reduce nitrogen oxide NOx in the flue gas selectively, nitrogen oxide NOx is changed into uncontamination element dinitrogen N2, and not with flue gas in O2 reaction.The present domestic device that does not also have the realization selective catalytic reduction of independent research, but dependence on import device, the apparatus structure complexity of import, construction investment is big, floor space is big, long flow path, and resistance is big, the operating cost height, need pay the technology usage charges of great number simultaneously, all under one's control at duration, technical elements, still be higher to the temperature requirement of flue gas, and the temperature of flue gas relies on heating fully and obtains, and wastes energy.
Summary of the invention
The purpose of this utility model solves the above-mentioned problems in the prior art exactly, provide a kind of simple in structure, floor space is little, flow process is short, and resistance is little, consumes low, catalyst effective area utilization rate height, temperature requirement to flue gas is low, and equipment cost is low, the waste gas purification treatment facility of the nitrogen oxide that the denitration rate is high.
For finishing above-mentioned purpose, technical solution of the present utility model is: a kind of waste gas purification treatment facility of nitrogen oxide, and it comprises: ammonia spray equipment, heat exchanger, catalytic reactor, hot water heat exchanger, anhydrous ammonia tank, air-introduced machine and control device; The waste gas smoke pipe connects smoke-intake pipe by valve, is provided with ammonia spray equipment and spark arrester in the smoke-intake pipe; The smoke-intake pipe outlet connects the cigarette holder that advances of heat exchanger, and the middle outlet flue of heat exchanger connects the air inlet of catalytic reactor, and the gas outlet of catalytic reactor connects the centre of heat exchanger and advances mouth, and the end of heat exchanger goes out cigarette holder and connects chimney by pipeline by air-introduced machine; The outlet of the liquefied ammonia of anhydrous ammonia tank is advanced the ammonia mouth by what pipeline connected hot water heat exchanger, and valve and Pressure gauge are installed on the pipeline; The ammonia mouth that goes out of hot water heat exchanger connects the air inlet pipe of ammonia spray equipment by pipeline, and valve and flowmeter are installed on the pipeline.
Above-mentioned described heat exchanger is made up of the polylith dividing plate in shell body and the shell body; Middle spacer segment between adjacent two dividing plates of polylith dividing plate in the shell body has opening, and there is the closed at both ends between adjacent two dividing plates of opening in the stage casing, forms cigarette channel between these adjacent two dividing plates, and the smoke-outlet flue upper end is for advancing mouth in the centre, and the lower end is an outlet flue; There is opening at two ends between adjacent two dividing plates of stage casing sealing, form fume inlet passage between these adjacent two dividing plates, and the fume inlet passage upper end is middle outlet flue, and the lower end is for advancing mouth; Be furnished with in smoke-outlet flue and the fume inlet passage and make flue gas change the baffle plate of direction; There is into cigarette holder the shell body lower end and goes out cigarette holder, and it is connected with the outlet flue that advances mouth and each smoke-outlet flue of each fume inlet passage respectively.
Above-mentioned described catalytic reactor comprises the carriage and the electric heating tube of housing, multi-layer catalyst layer, multi-layer catalyst layer; Be divided into the flue at two ends and the catalyst layer district in stage casing by division board in the housing, removably be fixed with the carriage of multi-layer catalyst floor in the catalyst layer district, catalyst layer places on the carriage of catalyst layer; The upper end of catalyst layer removably is fixed with the planker of electric heating tube, and electric heating tube inserts in the jack of the electric heating tube on the housing, places on the planker of electric heating tube; There is air inlet corresponding with the middle outlet flue of heat exchanger and that be communicated with at the two ends that are positioned at flue lower end housing, and the stage casing of catalyst layer district lower end housing has with the centre of heat exchanger enters the gas outlet that mouth is corresponding and be communicated with.
Above-mentioned described hot water heat exchanger is made up of the spiralling ammonia pipe of electric heating tube and electric heating tube upper end of bottom in outer wall, the outer wall; The upper and lower end of ammonia pipe all seals and passes through outer wall, and the lower end is for advancing the ammonia mouth, and the upper end is for going out the ammonia mouth.
The utility model also comprises lattice coral support, and lattice coral support is to be interweaved by riser bar and horizontal lamellae with being fixed together, the middle device that forms through slot, and it places the gas outlet of catalytic reactor and heat exchanger centre to advance between the mouth.
The utility model also comprises safety flushing water-accepting basin and cooling device, and cooling device comprises cooling spray and circulation cooling bay; Cooling spray places the upper end of anhydrous ammonia tank, and it connects running water pipe by pipeline, and connects the circulation cooling bay by pipeline by water circulating pump; Running water pipe also connects tap by pipeline, and the tap lower end is connected to safety flushing water-accepting basin.
Enter flue gas of the present utility model, at first in smoke-intake pipe, mix with ammonia, enter again in the fume inlet passage of heat exchanger, by the high flue gas heating of the temperature of coming out, after heat on the top that enters catalytic reactor again, be advanced into catalyst layer down and carry out the selective reduction reaction, generate nontoxic nitrogen and steam after, after entering the interior cooling of smoke-outlet flue of heat exchanger, discharge by chimney.The utility model directly uses liquefied ammonia, and reactor speed is fast, and catalyst amount is few, temperature requirement to flue gas is low, and energy consumption is low, and the fluid time of staying can be controlled, reaction temperature control automatically is adjustable, easy to operate, can reach and surpass the requirement of Industrial Stoves NOx waste gas emission standard.The utility model is simple in structure, and cost is low, and floor space is little, and flow process is short, and resistance is little, and operating cost is low, is more suitable for medium and small Industrial Stoves such as glass factory's calciner, catalyst generation stove.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the K portion enlarged drawing of Fig. 1;
Fig. 3 is the AA cutaway view of Fig. 1;
Fig. 4 is the BB cutaway view of Fig. 3;
Fig. 5 is the CC cutaway view of Fig. 3;
Fig. 6 is the DD cutaway view of Fig. 3;
Fig. 7 is the EE cutaway view of Fig. 3.
The specific embodiment
The utility model will be further described below in conjunction with the drawings and specific embodiments:
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and shown in Figure 7, present embodiment comprises ammonia spray equipment 8, heat exchanger 12, catalytic reactor 6, hot water heat exchanger 16, anhydrous ammonia tank 20, air-introduced machine 11, lattice coral support 25, safety flushing water-accepting basin 21 and cooling device, control device 10.Waste gas smoke pipe 2 by threeway 3 after, the valve 1 of leading up to connects chimney, another road connects smoke-intake pipes 5 by valve 4, is provided with ammonia spray equipment 8 and spark arrester 13 in the smoke-intake pipe 5.What smoke-intake pipe 5 outlet connected heat exchangers 12 advances cigarette holder 27, the middle outlet flue 29 of heat exchanger 12 connects the air inlet 40 of catalytic reactor 6, mouth 31 is advanced in the centre that the gas outlet 41 of catalytic reactor 6 connects heat exchanger 12, and the end of heat exchanger 12 goes out cigarette holder 28 and connects chimney 9 by pipeline by air-introduced machine 11.The outlet of the liquefied ammonia of anhydrous ammonia tank 20 is advanced the ammonia mouth by what pipeline connected hot water heat exchanger 16, and valve and Pressure gauge are installed on the pipeline.The ammonia mouth that goes out of hot water heat exchanger 16 connects the air inlet pipe of ammonia spray equipment 8 by pipeline, and valve 15 and flowmeter 14 are installed on the pipeline.7 is the electric air intake valve.
Heat exchanger 12 is made up of the polylith dividing plate 34 in shell body 33 and the shell body 33.Middle spacer segment between polylith dividing plate 34 adjacent two dividing plates in the shell body 33 has opening, there are two ends 32 sealings between adjacent two dividing plates of opening in the stage casing, form cigarette channel 43 between these adjacent two dividing plates 34, the opening of smoke-outlet flue 43 upper ends is that mouth 31 is advanced in the centre, and the lower end is an outlet flue.There is opening at two ends between adjacent two dividing plates of stage casing 30 sealings, form fume inlet passage 35 between these adjacent two dividing plates, and fume inlet passage 35 upper end open are middle outlet flue 29, and the lower end is for advancing mouth.Be fixed with the baffle plate 42 and 36 that makes flue gas change direction in smoke-outlet flue 43 and the fume inlet passage 35.There is into cigarette holder 27 shell body 33 lower ends and goes out cigarette holder 28, and it is connected with the outlet flue that advances mouth and each smoke-outlet flue 43 of each fume inlet passage 35 respectively.
Catalytic reactor comprises the carriage 46 and the electric heating tube 38 of 37,3 layers of catalyst layer 39 of housing, multi-layer catalyst layer; Be divided into the flue 45 at two ends and the catalyst layer district in stage casing by division board 44 in the housing 37, the carriage 46 of the multi-layer catalyst floor of removably fixing in the catalyst layer district is a bottom surface drawer with holes, drawer places in the slideway fixing on division board 44 end walls, and catalyst layer 39 places in the drawer.The upper end of catalyst layer 39 removably is fixed with the planker 26 of electric heating tube, and electric heating tube 38 inserts in the jack of the electric heating tube on the housing 37, places on the planker 26 of electric heating tube.There is air inlet 40 corresponding with the middle outlet flue 29 of heat exchanger 12 and that be communicated with at the two ends that are positioned at flue 45 lower end housings, and the stage casing of catalyst layer district lower end housing has with the centre of heat exchanger 12 enters the gas outlet 41 that mouth 31 is corresponding and be communicated with.
Hot water heat exchanger 16 is made up of the spiralling ammonia pipe 17 of electric heating tube 23 and electric heating tube 23 upper ends of bottom in outer wall 18, the outer wall 18; The upper and lower end of ammonia pipe 17 all seals and passes through outer wall 18, and the lower end is for advancing the ammonia mouth, and the upper end is for going out the ammonia mouth.
Safety flushing water-accepting basin 21 and cooling device, cooling device comprises cooling spray 19 and circulation cooling bay 24.Cooling spray 19 places the upper end of anhydrous ammonia tank 20, and it connects running water pipe by pipeline, and connects circulation cooling bay 24 by pipeline by water circulating pump.Running water pipe also connects tap 22 by pipeline, and tap 22 lower ends are connected to safety flushing water-accepting basin 21.
Certainly; the utility model also has other multiple example; under the situation of the utility model spirit and essence; those of ordinary skill in the art can make corresponding change and distortion according to the utility model; shape as carriage; number of plies of the number of electric heating tube, the structure of hot water heat exchanger, catalyst layer or the like, but these corresponding changes and distortion all should belong to the improvement of equivalent technologies, belong to the protection domain of the utility model claim.
Claims (10)
1. the waste gas purification treatment facility of a nitrogen oxide, it is characterized in that: it comprises: ammonia spray equipment, heat exchanger, catalytic reactor, hot water heat exchanger, anhydrous ammonia tank, air-introduced machine and control device; The waste gas smoke pipe connects smoke-intake pipe by valve, is provided with ammonia spray equipment and spark arrester in the smoke-intake pipe; The smoke-intake pipe outlet connects the cigarette holder that advances of heat exchanger, and the middle outlet flue of heat exchanger connects the air inlet of catalytic reactor, and the gas outlet of catalytic reactor connects the centre of heat exchanger and advances mouth, and the end of heat exchanger goes out cigarette holder and connects chimney by pipeline by air-introduced machine; The outlet of the liquefied ammonia of anhydrous ammonia tank is advanced the ammonia mouth by what pipeline connected hot water heat exchanger, and valve and Pressure gauge are installed on the pipeline; The ammonia mouth that goes out of hot water heat exchanger connects the air inlet pipe of ammonia spray equipment by pipeline, and valve and flowmeter are installed on the pipeline.
2. the waste gas purification treatment facility of nitrogen oxide according to claim 1, it is characterized in that: described heat exchanger is made up of the polylith dividing plate in shell body and the shell body; Middle spacer segment between adjacent two dividing plates of polylith dividing plate in the shell body has opening, and there is the closed at both ends between adjacent two dividing plates of opening in the stage casing, forms cigarette channel between these adjacent two dividing plates, and the smoke-outlet flue upper end is for advancing mouth in the centre, and the lower end is an outlet flue; There is opening at two ends between adjacent two dividing plates of stage casing sealing, form fume inlet passage between these adjacent two dividing plates, and the fume inlet passage upper end is middle outlet flue, and the lower end is for advancing mouth; Be furnished with in smoke-outlet flue and the fume inlet passage and make flue gas change the baffle plate of direction; There is into cigarette holder the shell body lower end and goes out cigarette holder, and it is connected with the outlet flue that advances mouth and each smoke-outlet flue of each fume inlet passage respectively.
3. according to the waste gas purification treatment facility of claim 1 or 2 described nitrogen oxide, it is characterized in that: described catalytic reactor comprises the carriage and the electric heating tube of housing, multi-layer catalyst layer, multi-layer catalyst layer; Be divided into the flue at two ends and the catalyst layer district in stage casing by division board in the housing, removably be fixed with the carriage of multi-layer catalyst floor in the catalyst layer district, catalyst layer places on the carriage of catalyst layer; The upper end of catalyst layer removably is fixed with the planker of electric heating tube, and electric heating tube inserts in the jack of the electric heating tube on the housing, places on the planker of electric heating tube; There is air inlet corresponding with the middle outlet flue of heat exchanger and that be communicated with at the two ends that are positioned at flue lower end housing, and the stage casing of catalyst layer district lower end housing has with the centre of heat exchanger enters the gas outlet that mouth is corresponding and be communicated with.
4. the waste gas purification treatment facility of nitrogen oxide according to claim 3 is characterized in that: described hot water heat exchanger is made up of the spiralling ammonia pipe of electric heating tube and electric heating tube upper end of bottom in outer wall, the outer wall; The upper and lower end of ammonia pipe all seals and passes through outer wall, and the lower end is for advancing the ammonia mouth, and the upper end is for going out the ammonia mouth.
5. according to the waste gas purification treatment facility of claim 1 or 2 described nitrogen oxide, it is characterized in that: described hot water heat exchanger is made up of the spiralling ammonia pipe of electric heating tube and electric heating tube upper end of bottom in outer wall, the outer wall; The upper and lower end of ammonia pipe all seals and passes through outer wall, and the lower end is for advancing the ammonia mouth, and the upper end is for going out the ammonia mouth.
6. the waste gas purification treatment facility of nitrogen oxide according to claim 4, it is characterized in that: it also comprises lattice coral support, lattice coral support is to be interweaved by riser bar and horizontal lamellae with being fixed together, the middle device that forms through slot, it places the gas outlet of catalytic reactor and heat exchanger centre to advance between the mouth.
7. the waste gas purification treatment facility of nitrogen oxide according to claim 5, it is characterized in that: it also comprises lattice coral support, lattice coral support is to be interweaved by riser bar and horizontal lamellae with being fixed together, the middle device that forms through slot, it places the gas outlet of catalytic reactor and heat exchanger centre to advance between the mouth.
8. the waste gas purification treatment facility of nitrogen oxide according to claim 6 is characterized in that: it also comprises safety flushing water-accepting basin and cooling device, and cooling device comprises cooling spray and circulation cooling bay; Cooling spray places the upper end of anhydrous ammonia tank, and it connects running water pipe by pipeline, and connects the circulation cooling bay by pipeline by water circulating pump; Running water pipe also connects tap by pipeline, and the tap lower end is connected to safety flushing water-accepting basin.
9. the waste gas purification treatment facility of nitrogen oxide according to claim 7 is characterized in that: it also comprises safety flushing water-accepting basin and cooling device, and cooling device comprises cooling spray and circulation cooling bay; Cooling spray places the upper end of anhydrous ammonia tank, and it connects running water pipe by pipeline, and connects the circulation cooling bay by pipeline by water circulating pump; Running water pipe also connects tap by pipeline, and the tap lower end is connected to safety flushing water-accepting basin.
10. the waste gas purification treatment facility of nitrogen oxide according to claim 4 is characterized in that: it also comprises safety flushing water-accepting basin and cooling device, and cooling device comprises cooling spray and circulation cooling bay; Cooling spray places the upper end of anhydrous ammonia tank, and it connects running water pipe by pipeline, and connects the circulation cooling bay by pipeline by water circulating pump; Running water pipe also connects tap by pipeline, and the tap lower end is connected to safety flushing water-accepting basin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202961585U CN201728048U (en) | 2010-08-19 | 2010-08-19 | Nitrogen oxide waste gas purification treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202961585U CN201728048U (en) | 2010-08-19 | 2010-08-19 | Nitrogen oxide waste gas purification treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201728048U true CN201728048U (en) | 2011-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202961585U Expired - Fee Related CN201728048U (en) | 2010-08-19 | 2010-08-19 | Nitrogen oxide waste gas purification treatment device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201728048U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691290A (en) * | 2013-12-06 | 2014-04-02 | 浙江省环境保护科学设计研究院 | Cement kiln SNCR (Selective Non Catalytic Reduction) flue gas denitrification system capable of improving denitrification safety |
| CN106000010A (en) * | 2016-07-18 | 2016-10-12 | 洛阳格林环保工程有限公司 | Temperature and pressure regulating device of desulfurization tower flue gas pipeline |
-
2010
- 2010-08-19 CN CN2010202961585U patent/CN201728048U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691290A (en) * | 2013-12-06 | 2014-04-02 | 浙江省环境保护科学设计研究院 | Cement kiln SNCR (Selective Non Catalytic Reduction) flue gas denitrification system capable of improving denitrification safety |
| CN103691290B (en) * | 2013-12-06 | 2015-08-05 | 浙江省环境保护科学设计研究院 | A kind of cement furnace SNCR flue gas denitrification system improving denitration security |
| CN106000010A (en) * | 2016-07-18 | 2016-10-12 | 洛阳格林环保工程有限公司 | Temperature and pressure regulating device of desulfurization tower flue gas pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAODING HAORUI HUANBAO ENVIRONMENTAL PROTECTION TE Free format text: FORMER OWNER: HUANG BANFANG Effective date: 20130204 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130204 Address after: The beautiful city of Baoding province Hebei 071000 Street No. 295 Patentee after: Baoding Haorui environmental protection science and technology limited company Address before: 1905, room 1883, block C, Renhe apartment, Dongfeng Dongfeng Road, Baoding,, Hebei Patentee before: Huang Banfang |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20150819 |
|
| EXPY | Termination of patent right or utility model |