CN201832548U - Denitration treatment device for purifying flue gas - Google Patents
Denitration treatment device for purifying flue gas Download PDFInfo
- Publication number
- CN201832548U CN201832548U CN2010205081515U CN201020508151U CN201832548U CN 201832548 U CN201832548 U CN 201832548U CN 2010205081515 U CN2010205081515 U CN 2010205081515U CN 201020508151 U CN201020508151 U CN 201020508151U CN 201832548 U CN201832548 U CN 201832548U
- Authority
- CN
- China
- Prior art keywords
- denitration
- flue gas
- absorber
- treating apparatus
- flue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a denitration treatment device for purifying flue gas, which comprises a denitration absorber, a flue mixer and an ozone generator. The denitration absorber comprises a casing, a flue gas inlet and a flue gas outlet are respectively arranged at two ends of the casing, an alkali liquor containing area is arranged at the bottom in the casing, multiple layers of spray nozzles are arranged above the alkali liquor containing area, the flue mixer is connected with the flue gas inlet of the denitration absorber and comprises an ozone inlet and a mixing reaction cavity communicated with the ozone inlet, and the ozone inlet is connected with the ozone generator through a pipeline. The SCR (selective catalytic reduction) technology needing large floor area and high equipment cost and the SNCR (selective non-catalytic reduction ) technology having poor effects and influences on production process are omitted during denitration treatment; the denitration treatment device can effectively remove dust, sulfur oxide and nitric oxide in flue gas effectively, and reduces invest cost to some degree and further reduces burden of enterprises on the premise of guaranteeing purification efficiency.
Description
Technical field
The utility model relates to environmental technology field, relates in particular to a kind of denitration treating apparatus that is used to purify flue gas.
Background technology
Growing along with modern industrial technology, the contaminative flue gas that produces in the using energy source process has become a very important problem to the harm that ecological environment and human lives bring.With heavy polluted industries such as power plant, heating boiler, glass manufacturings is example, the flue gas that produces after fuel such as coal tar, natural gas, petroleum coke powder even raw coal burn in boiler or kiln mainly comprises multiple harmful substances such as dust, oxysulfide, nitrogen oxide, if directly be disposed in the air, not only pollution of ecological environment, harm humans health, but also can corrode production equipment, whole production technology is caused adverse effect.
The flue-gas denitrification of comparative maturity (being commonly called as denitration) technology adopts selective non-catalytic (SNCR) technology and selectivity catalysis (SCR) technology at present, mainly utilizes reducing agents such as ammonia, urea under certain condition with NO
XReduction becomes N
2, the SNCR technology is carried out in 900～12000 ℃ temperature range, and denitration efficiency is relatively low, for example the NO of oil burning boiler
XDischarge capacity only reduces by 30%～50%; SCR technology denitration efficiency significantly improves, yet owing to has used the very strong NH of corrosivity
3Or ammoniacal liquor, the requirement height to pipeline equipment has increased equipment cost, and because NH
3Addition be difficult to accurate control, cause secondary pollution easily.
Along with people's environmental consciousness progressively strengthens, standard limit of smog release is also strict day by day, therefore, the denitration efficiency of existing flue gases purification is still waiting further raising, on this basis, also should suitably control the pollutant control cost, to reduce the burden on enterprises by improving flue gases purification.
The utility model content
The main technical problems to be solved in the utility model is a kind of raising denitration rate to be provided, and to reduce the denitration treating apparatus that is used to purify flue gas of treatment cost.
For solving the problems of the technologies described above, the utility model provides a kind of denitration treating apparatus that is used to purify flue gas, comprise the denitration absorber, described denitration absorber comprises that two ends are respectively equipped with the housing of smoke inlet and exhanst gas outlet, bottom in the described housing comprises the alkali lye disposal area, top, described alkali lye disposal area is provided with the multilayer spray nozzle, also comprise flue blender and ozone generator, described flue blender links to each other with the smoke inlet of described out of stock absorber, described flue blender comprises that ozone feeds mouth, and a hybrid reaction chamber that is communicated with described ozone feeding mouth, described ozone feeds mouth and is connected with described ozone generator pipeline.
Preferably, be provided for guiding described flue gas and the mixed uniformly many gas flow guiding bars of ozone in the described hybrid reaction chamber.
Further, described gas flow guiding bar layering is provided with.
Top, described alkali lye disposal area also is provided with built-in swirl vane.
The smoke inlet of described denitration absorber also is provided with the cooling shower nozzle that is used to spray alkali lye.
Further, described denitration absorber is a horizontal type structure, and described smoke inlet and exhanst gas outlet all are positioned at the top at described housing two ends, and the spray direction of described cooling shower nozzle upwards.
The inwall of the smoke inlet of described denitration absorber has the contraction platform that is provided with along the approach axis reducing of described flue gas.
Described flue blender also has smoke inlet, and the inwall of the smoke inlet of described flue blender has the contraction platform that is provided with along the approach axis reducing of described flue gas.
Preferably, also be provided with at least one puff prot that sinks in the alkali lye in the described alkali lye disposal area, the jet direction of described puff prot upwards.
Further, also comprise dehydrator, air-introduced machine and chimney, described denitration absorber, dehydrator, air-introduced machine are connected by pipeline successively with chimney.
The beneficial effects of the utility model are: denitration treating apparatus of the present utility model avoids adopting SNCR technology and the SCR technology that floor space is big, equipment cost is higher to carry out the denitration processing, can effectively remove grit, oxysulfide and nitrogen oxide in the flue gas, reduce flue-gas temperature, and on the basis that guarantees purification efficiency, reduced cost of investment, alleviated business burden.
The present invention can be widely used in smelting and chemical industries such as power plant, heating boiler, glass manufacturing, can the flue gas that fuel such as coal tar, natural gas, petroleum coke powder even raw coal are discharged effectively be purified.
Description of drawings
Fig. 1 is the denitration treating apparatus structural representation that is used to purify flue gas of a kind of embodiment of the utility model;
Fig. 2 is the flue blender schematic diagram of a kind of embodiment of the utility model;
Fig. 3 looks schematic diagram for the left side of flue blender;
Fig. 4 is the schematic cross-section of flue blender in the A-A position;
Fig. 5 is a denitration absorber structure schematic diagram of the present invention.
The specific embodiment
In conjunction with the accompanying drawings the utility model is described in further detail below by the specific embodiment.
Embodiment one:
Please refer to Fig. 1, the denitration treating apparatus that present embodiment is used to purify flue gas comprises flue blender 10, denitration absorber 20, dehydrator 30, air-introduced machine 40 and the chimney 50 that connects successively.Wherein, flue blender 10 comprises that the ozone that is connected with ozone generator 60 pipelines feeds mouth, flue blender 10 also comprises a hybrid reaction chamber that is communicated with ozone feeding mouth, be used to make flue gas fully to mix, thereby the NO in the flue gas is oxidized to the higher nitrogen oxides that is absorbed by alkali lye easily with ozone.Denitration absorber 20 comprises that two ends are respectively equipped with the housing of smoke inlet and exhanst gas outlet, bottom in the housing comprises the alkali lye disposal area, top, alkali lye disposal area is provided with the multilayer spray nozzle, is used for that the flue gas after handling through flue blender 10 is carried out dedusting, desulfurization and denitration and handles.
Please refer to Fig. 2, flue blender 10 is a tubular structure, comprises the smoke inlet 11 and the exhanst gas outlet 15 that lay respectively at two ends, and the hybrid reaction chamber 14 at middle part, comprises that also at least one ozone that is communicated with hybrid reaction chamber 14 feeds mouth 12.
The inwall of smoke inlet 11 has the contraction platform 16 that is provided with along the approach axis reducing of flue gas, for example the contour shape of contraction platform 16 can be arranged to square, circular or other shapes, and form an aditus laryngis formula structure, flue gas is entered by this aditus laryngis again have equally distributed fluidised form after the space becomes big 14 inside, hybrid reaction chamber.Ozone feeds mouthful 12 positions that are positioned near smoke inlet 11, and links to each other with ozone generator 60 pipelines, with concentration greater than the oxygen of 20mg/L or compressed air as source of the gas, be used for feeding ozone in hybrid chamber 14.For example shown in Figure 3, a plurality of ozone feed the wall portion that mouth 12 can be evenly distributed on hybrid reaction chamber 14.As shown in Figure 4, also can be provided for guiding flue gas and the mixed uniformly many gas flow guiding bars 13 of ozone in the hybrid reaction chamber 14, but these gas flow guiding bar 13 layering settings, can be solid or hollow-core construction, the cross sectional shape circular, leave between each gas flow guiding bar 13 and be used for the gap that gas passes through, flue gases in the hybrid reaction chamber 14 are mixed as far as possible fully with ozone and react.
After flue gas enters smoke inlet 11 according to the direction of arrow, under the guiding function of gas flow guiding bar 13, give birth to sufficient oxidation reaction, thereby the NO that is difficult to directly to remove that contains in the flue gas is oxidized into the NO of high price with the even hybrid concurrency of ozone
2, NO
3, N
2O
5Deng, in order to guarantee sufficient reacting, can control the reaction time more than or equal to 0.6s.The cross sectional shape of flue blender 10 can be square or circular, adopts the material of anticorrosion antiwear to make or inwall covering anticorrosion antiwear layer, and smoke inlet 11 and exhanst gas outlet 15 adopt the concentric type structure of larger caliber.Preferably, flue blender 10 is an eddy current type flue blender, is convenient to flue gas and fully mixes with ozone and react.
Denitration absorber 20 can be horizontal or vertical structure, in the horizontal type structure, and the flue gas bottom horizontal flow sheet, in the vertical structure, flue gas is bottom-up vertically to flow.In the horizontal type structure as shown in Figure 5, denitration absorber 20 comprises housing, bottom in the housing is alkali lye disposal area 26, the top at housing two ends is respectively equipped with smoke inlet 21 and exhanst gas outlet 25,26 tops, alkali lye disposal area are provided with the flue gas spray alkali lye that is used in housing and carry out the multilayer spray nozzle 23 that denitration is handled, the spray direction is a horizontal direction, and with the flow direction contrary of flue gas, 26 tops, alkali lye disposal area also can be provided for driving the built-in swirl vane 24 of flue gas eddy flow.Smoke inlet 21 also has contraction platform 22, and smoke inlet 21 is provided with one or more cooling shower nozzle 28 that is used for lowering the temperature to flue gas spray alkali lye, being used for that the flue gas that enters housing is carried out preliminary cooling handles and preliminary desulfurization, denitration processing, its spray direction upwards, and with the approach axis contrary of flue gas.
Also be provided with at least one puff prot 27 that sinks in the alkali lye in the alkali lye disposal area 26, the jet direction of puff prot upwards, be used for spraying into air or oxygen as oxidant to alkali lye, puff prot 27 sprays into the activity that oxygen or air can effectively improve flue gas sulphur oxide, nitrogen oxide and alkali lye generation neutralization reaction in alkali lye, improve desulfurization and desulfuration efficiency.
After flue gas entered smoke inlet 21 along the direction of arrow, the alkali lye that sprays with cooling shower nozzle 28 and multilayer spray nozzle 23 reacted, thereby removes NO
2, NO
3, N
2O
5Deng output exhanst gas outlet 25 behind the nitrogen oxide.Because denitration absorber 20, dehydrator 30, air-introduced machine 40 are connected by pipeline successively with chimney 50, make the flue gas input dehydrator 30 of output denitration absorber 20 carry out processed, after removing moisture residual in the flue gas, under the effect of air-introduced machine 40, send into chimney 50 and discharge.
The alkali lye that the utility model adopts can be soda lye, and for example NaOH also can use ammoniacal liquor, KOH or Ca (OH)
2Deng alkaline solution.
Compared with prior art, the SNCR technology that denitration treating apparatus of the present utility model avoids adopting floor space is big, equipment cost is higher SCR technology and poor effect, influence production technology is carried out denitration and is handled, and can effectively remove grit, oxysulfide and nitrogen oxide in the flue gas, on the basis that guarantees purification efficiency, reduce cost of investment to a certain extent, alleviated business burden.The present invention can be widely used in smelting and chemical industries such as power plant, heating boiler, glass manufacturing, can the flue gas that fuel such as coal tar, natural gas, petroleum coke powder even raw coal are discharged effectively be purified.
Above content be in conjunction with concrete embodiment to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. denitration treating apparatus that is used to purify flue gas, comprise the denitration absorber, described denitration absorber comprises that two ends are respectively equipped with the housing of smoke inlet and exhanst gas outlet, bottom in the described housing comprises the alkali lye disposal area, top, described alkali lye disposal area is provided with the multilayer spray nozzle, it is characterized in that, also comprise flue blender and ozone generator, described flue blender links to each other with the smoke inlet of described out of stock absorber, described flue blender comprises that ozone feeds mouth, and a hybrid reaction chamber that is communicated with described ozone feeding mouth, described ozone feeds mouth and is connected with described ozone generator pipeline.
2. the denitration treating apparatus that is used to purify flue gas as claimed in claim 1 is characterized in that, is provided for guiding the mixed uniformly many gas flow guiding bars of described flue gas and ozone in the described hybrid reaction chamber.
3. the denitration treating apparatus that is used to purify flue gas as claimed in claim 2 is characterized in that, described gas flow guiding bar layering is provided with.
4. the denitration treating apparatus that is used to purify flue gas as claimed in claim 1 is characterized in that, top, described alkali lye disposal area also is provided with built-in swirl vane.
5. the denitration treating apparatus that is used to purify flue gas as claimed in claim 1 is characterized in that the smoke inlet of described denitration absorber also is provided with the cooling shower nozzle that is used to spray alkali lye.
6. denitration treating apparatus as claimed in claim 5 is characterized in that, described denitration absorber is a horizontal type structure, and described smoke inlet and exhanst gas outlet all are positioned at the top at described housing two ends, and the spray direction of described cooling shower nozzle upwards.
7. as each described denitration treating apparatus in the claim 1 to 6, it is characterized in that the inwall of the smoke inlet of described denitration absorber has the contraction platform that is provided with along the approach axis reducing of described flue gas.
8. as each described denitration treating apparatus in the claim 1 to 6, it is characterized in that described flue blender also has smoke inlet, the inwall of the smoke inlet of described flue blender has the contraction platform that is provided with along the approach axis reducing of described flue gas.
9. as each described denitration treating apparatus in the claim 1 to 6, it is characterized in that, also be provided with at least one puff prot that sinks in the alkali lye in the described alkali lye disposal area, the jet direction of described puff prot upwards.
10. as each described denitration treating apparatus in the claim 1 to 6, it is characterized in that also comprise dehydrator, air-introduced machine and chimney, described denitration absorber, dehydrator, air-introduced machine are connected by pipeline successively with chimney.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205081515U CN201832548U (en) | 2010-08-27 | 2010-08-27 | Denitration treatment device for purifying flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205081515U CN201832548U (en) | 2010-08-27 | 2010-08-27 | Denitration treatment device for purifying flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201832548U true CN201832548U (en) | 2011-05-18 |
Family
ID=44002644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205081515U Expired - Fee Related CN201832548U (en) | 2010-08-27 | 2010-08-27 | Denitration treatment device for purifying flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201832548U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350189A (en) * | 2011-08-24 | 2012-02-15 | 福建新大陆环保科技有限公司 | Half-dry low-temperature smoke denitrification system |
| CN102836629A (en) * | 2012-09-07 | 2012-12-26 | 王中位 | Flue gas desulfurization dust removal process and apparatus |
| CN105841181A (en) * | 2016-05-09 | 2016-08-10 | 肖贵和 | Novel petroleum coke powder burning 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 |
| CN110394008A (en) * | 2019-08-27 | 2019-11-01 | 江苏新宏大集团有限公司 | One kind being used for urea prilling tower tail gas horizontal washing tower and application method |
-
2010
- 2010-08-27 CN CN2010205081515U patent/CN201832548U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350189A (en) * | 2011-08-24 | 2012-02-15 | 福建新大陆环保科技有限公司 | Half-dry low-temperature smoke denitrification system |
| CN102350189B (en) * | 2011-08-24 | 2014-02-26 | 福建新大陆环保科技有限公司 | Half-dry low-temperature smoke denitrification system |
| CN102836629A (en) * | 2012-09-07 | 2012-12-26 | 王中位 | Flue gas desulfurization dust removal process and apparatus |
| CN105841181A (en) * | 2016-05-09 | 2016-08-10 | 肖贵和 | Novel petroleum coke powder burning 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 |
| CN110394008A (en) * | 2019-08-27 | 2019-11-01 | 江苏新宏大集团有限公司 | One kind being used for urea prilling tower tail gas horizontal washing tower and application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101254394B (en) | Sintering device flue gas multiple pollutant removing process and system thereof | |
| CN203507793U (en) | Device for simultaneously removing sulfur dioxide and nitrogen oxide from coke oven flue gas | |
| CN102371113A (en) | Flue gas purifying treatment method and system | |
| CN101279186B (en) | Flue gas dry-type method for simultaneously desulfurizing and denitrating | |
| WO2005028082A1 (en) | A dry flue gas cleaning process and its system for simultaneously desulfurization and denitrating | |
| CN201832548U (en) | Denitration treatment device for purifying flue gas | |
| CN104324575B (en) | A kind of system of spray absorber formula sintering flue gas and desulfurizing and denitrifying | |
| CN107376639B (en) | Hazardous waste incineration flue gas purification method | |
| CN102909104A (en) | Thermal regeneration method and device of SCR (selective catalytic reduction) denitration catalyst | |
| CN204619713U (en) | A kind of system and boiler removing various pollutants in fume | |
| CN212262854U (en) | Single-tower double-circulation desulfurization and denitrification system with cooperation of oxidant and ozone oxidation | |
| CN201832550U (en) | Wet cyclonic flue gas processor | |
| CN102961954B (en) | Exhaust gas NOx emission reduction device of cement kiln | |
| CN103170229A (en) | Desulfurization and denitration integrated system of industrial kiln stove | |
| CN208553761U (en) | A kind of the denitrating flue gas unit and device of charged spray ammonia and ammonolysis craft combination | |
| CN109847578A (en) | A kind of various pollutants of fume cooperation-removal method | |
| CN201832549U (en) | Dust removal, desulfurization and denitrification integrated reactor | |
| CN202845023U (en) | Heat treatment regeneration device of SCR (Selective Catalytic Reduction) denitration catalyst | |
| CN108786403B (en) | Denitration reactor and denitration and desulfurization method | |
| CN205412654U (en) | Sintering machine flue gas ammonia process H2O2 oxidation denitrification facility | |
| CN212999279U (en) | Flue gas treatment system for efficiently utilizing carbon monoxide | |
| CN211987967U (en) | Sintering flue gas desulfurization and denitrification system | |
| CN203264548U (en) | Industrial kiln desulfurization denitrification integrated system | |
| CN112870948A (en) | Heat recovery coke oven flue gas multi-pollutant ultra-clean discharge device and process thereof | |
| CN107626202B (en) | A kind of SCR denitration device, the method and its application of aluminium oxide calcining flue gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20120827 |