CN204952624U - Desulfurization and denitrification integrated device for smoke - Google Patents
Desulfurization and denitrification integrated device for smoke Download PDFInfo
- Publication number
- CN204952624U CN204952624U CN201520732146.5U CN201520732146U CN204952624U CN 204952624 U CN204952624 U CN 204952624U CN 201520732146 U CN201520732146 U CN 201520732146U CN 204952624 U CN204952624 U CN 204952624U
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- CN
- China
- Prior art keywords
- absorption tower
- flue gas
- lime stone
- ozone
- limestone slurry
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- 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.)
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Abstract
The utility model relates to a gas cleaning processing apparatus especially relates to a desulfurization and denitrification integrated device for smoke, including the absorption tower, be provided with flue gas inlet at the absorption tower middle part, still include ozone blender, ozone generator and liquid oxygen storage tank. Be provided with the exhanst gas outlet at the top on absorption tower, be provided with lime stone slurry pond in the bottom on absorption tower, still include limestone slurry feed liquor system. Still be provided with a plurality of layers that spray in the absorption tower, the position height that sprays the layer is higher than flue gas inlet, still including being used for the circulation to spray the circulation pipeline and the circulating pump of liquid. The desulfurization and denitrification integrated device for smoke of this structure can realize SOx/NOx control's integration, reaches the multi -purpose mesh of a tower to realize the low temperature denitration, do not need the catalyst, do not use reductants such as ammonia.
Description
Technical field
The utility model relates to a kind of flue-gas purification equipment, particularly relates to a kind of flue gas desulfurization and denitrification integrated apparatus.
Background technology
The energy consumption per unit that China " 12 " planning outline proposes declines 16%, and CO2 emission reduces by 17%, and total emissions of major pollutants reduces 8-10%." 12 " are the critical periods of China's socio-economic development transition, realize low carbon development, Green Development is the theme that " 12 " are developed.But due to the particularity of China's energy resource structure, within considerable time, can not there is essence change in the primary energy supply pattern based on coal.Generally speaking, " 12 " period, energy demand also can keep the situation grown at top speed, according to State Grid's project study center about " the medium-term and long-term generating capacity of China and electricity needs development prediction ", by the end of the year 2013, China's coal electricity installed capacity will be 8.47 hundred million kilowatts.Prediction the year two thousand thirty coal Denso machine 12.5-14 hundred million kilowatts; The year two thousand fifty coal Denso machine 14-15 hundred million kilowatts.Large-scale coal fired power generation can bring than now more serious environmental problem.
The coal-burning boiler of current all parts of the country all maybe will add desulphurization and denitration device, overwhelming majority denitration adopts SNCR, SCR and SNCR+SCR mode, all need to carry out in high temperature (850 DEG C-950 DEG C) or middle temperature (300 DEG C-420 DEG C) flue gas, be the reaction between gas and gas, need NH
3deng reducing agent, SCR then also needs catalyst to support.Owing to requiring high to flue-gas temperature, so, before general denitrification apparatus is all arranged on boiler air preheater, first to transform structure of boiler body, also will arrange denitrification apparatus in extremely limited space, flexible arrangement is poor, is sometimes limited to site requirements, reactor can only be arranged into far place, substantially increase equipment investment cost.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of flue gas desulfurization and denitrification integrated apparatus, in order to overcome traditional desulfuring and denitrifying apparatus severe reaction conditions, the shortcoming of flexible arrangement difference.
For solving the problems of the technologies described above, flue gas desulfurization and denitrification integrated apparatus of the present utility model comprises absorption tower, gas approach is provided with in the middle part of described absorption tower, also comprise ozone mixer, ozone generator and liquid oxygen storage tank, described liquid oxygen storage tank is connected with described ozone generator pipeline, ozone transport conduit is provided with between described ozone generator and described ozone mixer, one end of described ozone transport conduit is connected with described ozone generator, and the other end to stretch in ozone mixer and is provided with spray oxygen grid in this end; Described ozone mixer one end is connected with described gas approach pipeline, and the other end is provided with the pipeline entered for former flue gas;
The top on described absorption tower is provided with exhanst gas outlet, the bottom on described absorption tower is provided with limestone slurry liquid pool, also comprise lime stone slurry feed liquor system, described lime stone slurry feed liquor system comprises lime stone slurry case and limestone slurry liquid pump, described lime stone slurry case is connected with described limestone slurry liquid pool pipeline, and described limestone slurry liquid pump is arranged between described lime stone slurry case and described limestone slurry liquid pool;
Some spraying layers are also provided with in described absorption tower, the position height of described spraying layer is higher than described gas approach, also comprise the circulation line for circulated sprinkling liquid and circulating pump, described circulation line is arranged between described spraying layer and described limestone slurry liquid pool.
Further, demist layer is also provided with on described spraying layer top.
Further, described spraying layer is provided with the mouth spray under shed, the quantity of described spraying layer is 4 layers, and the mouth spray of described adjacent spraying layer is interspersed.
Further, bottom described limestone slurry liquid pool, the first agitator is provided with.
Further, bottom described lime stone slurry case, the second agitator is provided with.
Beneficial effect: 1. liquid oxygen storage tank is connected with ozone generator pipeline, utilizes high voltage source by O in ozone generator
2be converted into O
3, by the O generated
3ozone mixer is delivered to, O in ozone mixer by ozone transport conduit
3react with the NO in former flue gas and generate NO
2.Flue gas after initial reaction enters absorption tower from gas approach, flue gas contacts with lime stone atomization slurry is reverse in spraying layer, sulfur dioxide in flue gas is washed down, and with the calcium carbonate reaction in lime stone slurry, finally generate product be that gypsum is deposited to bottom limestone slurry liquid pool pipe; NO simultaneously in flue gas
2also calcium nitrate can be generated with the lime stone atomization slurry reaction in spraying layer; Remove SO
2and NO
2after flue gas discharge from the smoke outlet at top, absorption tower.2. bottom limestone slurry liquid pool, be provided with the first agitator, it is uniform and dissolve that the first agitator can accelerate lime stone, is conducive to and the contacting of flue gas.3. the mouth spray of adjacent spraying layer is interspersed, and makes lime stone slurry cover whole section within the scope of 360 °, and lime stone slurry continues input limestone slurry liquid pool by limestone slurry liquid pump simultaneously, maintains the pH value of limestone slurry liquid pool.4. spraying layer top is also provided with demist layer, and demist layer is for removing the large particulate matter in flue gas, and purifying smoke eliminates the pollution to air.5. the brief introduction of device technique flow process understands, arrangement convenience, do not need to transform boiler, running can not produce other influences to boiler.6. realize the integration of desulphurization denitration, reach the object that a tower is multiplex.7. realize low-temperature denitration, do not need catalyst, do not use the reducing agents such as ammonia, under NOx content and all unstable inlet air conditions of exhaust gas volumn, all energy denitrations, and also denitration efficiency improves greatly than other method of denitration, carries mark stop space for denitration in future.8. because technique is simple, maintenance and maintenance cost reduce greatly in the future, reduce labor strength.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail;
Fig. 1 is the overall structure schematic diagram of a kind of flue gas desulfurization and denitrification integrated apparatus of the utility model embodiment;
Description of reference numerals
1-absorption tower; 2-liquid oxygen storage tank; 3-ozone generator; 4-ozone transport conduit; 5-ozone mixer; 6-sprays oxygen grid; 7-gas approach; 8-exhanst gas outlet; 9-limestone slurry liquid pool; 10-limestone slurry liquid pump; 11-lime stone slurry case; 12-first agitator; 13-second agitator; 14-circulating pump; 15-circulation line; 16-spraying layer; 17-demist layer.
Detailed description of the invention
Figure 1 shows that the overall structure schematic diagram of a kind of flue gas desulfurization and denitrification integrated apparatus of the utility model embodiment, comprise absorption tower 1, gas approach 7 is provided with in the middle part of absorption tower 1, also comprise ozone mixer 5, ozone generator 3 and liquid oxygen storage tank 2, liquid oxygen storage tank 2 is connected with ozone generator 3 pipeline, ozone transport conduit 4 is provided with between ozone generator 3 and ozone mixer 5, one end of ozone transport conduit 4 is connected with ozone generator 3, and the other end to stretch in ozone mixer 5 and is provided with spray oxygen grid 6 in this end.Ozone mixer 5 one end is connected with gas approach 7 pipeline, and the other end is provided with the pipeline entered for former flue gas.In ozone generator 3, utilize high voltage source by O
2be converted into O
3, by the O generated
3ozone mixer 5 is delivered to, O in ozone mixer 5 by ozone transport conduit 4
3react with the NO in former flue gas and generate NO
2, reaction equation is as follows:
NO+O
3＝NO
2+O
2
The top on absorption tower 1 is provided with exhanst gas outlet 8, the bottom on absorption tower 1 is provided with limestone slurry liquid pool 9, also comprise lime stone slurry feed liquor system, lime stone slurry feed liquor system comprises lime stone slurry case 11 and limestone slurry liquid pump 10, lime stone slurry case 11 is connected with limestone slurry liquid pool 9 pipeline, and limestone slurry liquid pump 10 is arranged between lime stone slurry case 11 and limestone slurry liquid pool 9.In absorption tower 1, be also provided with 4 layers of spraying layer 16, the position height of spraying layer 16 is higher than gas approach 7, and also comprise the circulation line 15 for circulated sprinkling liquid and circulating pump 14, circulation line 15 is arranged between spraying layer 16 and limestone slurry liquid pool 9.Also be provided with demist layer 17 on spraying layer 16 top, demist layer 17 is for removing the large particulate matter in flue gas, and purifying smoke eliminates the pollution to air.
Flue gas after initial reaction enters absorption tower 1 from gas approach, flue gas contacts with lime stone atomization slurry is reverse in spraying layer 16, sulfur dioxide in flue gas is washed down, and with the calcium carbonate reaction in lime stone slurry, finally generate product be that gypsum is deposited to bottom limestone slurry liquid pool 9 pipe; NO simultaneously in flue gas
2also calcium nitrate can be generated with the lime stone atomization slurry reaction in spraying layer 16; Remove SO
2and NO
2after flue gas discharge from the exhanst gas outlet 8 at top, absorption tower, reaction equation is as follows:
2NO
2+H
2O＝HNO
2+HNO
3
2HNO
2+CaCO
3＝Ca(NO
2)
2+CO
2+H
2O
2HNO
3+CaCO
3＝Ca(NO
3)
2+CO
2+H
2O
SO2+CaCO
3＝CaSO
3+CO
2
CaSO
3·1/2H2O+1/2H
2O+1/2O
2＝CaSO
4·2H
2O
Ca(NO
2)
2+O
2＝Ca(NO
3)
2
In addition, be provided with the first agitator 12 bottom limestone slurry liquid pool 9, bottom lime stone slurry case 11, being provided with the second agitator 13, first agitator 12, can to accelerate lime stone uniform and dissolve, and is conducive to and the contacting of flue gas.The mouth spray of adjacent spraying layer 16 is interspersed, and makes lime stone slurry cover whole section within the scope of 360 °, and lime stone slurry continues input limestone slurry liquid pool by limestone slurry liquid pump simultaneously, maintains the pH value of limestone slurry liquid pool.
More than show and describe general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. a flue gas desulfurization and denitrification integrated apparatus, it is characterized in that: comprise absorption tower (1), described absorption tower (1) middle part is provided with gas approach (7), also comprise ozone mixer (5), ozone generator (3) and liquid oxygen storage tank (2), described liquid oxygen storage tank (2) is connected with described ozone generator (3) pipeline, ozone transport conduit (4) is provided with between described ozone generator (3) and described ozone mixer (5), one end of described ozone transport conduit (4) is connected with described ozone generator (3), the other end to stretch in ozone mixer (5) and is provided with spray oxygen grid (6) in this end, described ozone mixer (5) one end is connected with described gas approach (7) pipeline, and the other end is provided with the pipeline entered for former flue gas,
The top of described absorption tower (1) is provided with exhanst gas outlet (8), the bottom of described absorption tower (1) is provided with limestone slurry liquid pool (9), also comprise lime stone slurry feed liquor system, described lime stone slurry feed liquor system comprises lime stone slurry case (11) and limestone slurry liquid pump (10), described lime stone slurry case (11) is connected with described limestone slurry liquid pool (9) pipeline, and described limestone slurry liquid pump (10) is arranged between described lime stone slurry case (11) and described limestone slurry liquid pool (9);
Some spraying layers (16) are also provided with in described absorption tower (1), the position height of described spraying layer (16) is higher than described gas approach (7), also comprise the circulation line (15) for circulated sprinkling liquid and circulating pump (14), described circulation line (15) is arranged between described spraying layer (16) and described limestone slurry liquid pool (9).
2. flue gas desulfurization and denitrification integrated apparatus according to claim 1, is characterized in that: be also provided with demist layer (17) on described spraying layer (16) top.
3. flue gas desulfurization and denitrification integrated apparatus according to claim 1, it is characterized in that: on described spraying layer (16), be provided with the mouth spray under shed, the quantity of described spraying layer (16) is 4 layers, and the mouth spray of described adjacent spraying layer (16) is interspersed.
4. the flue gas desulfurization and denitrification integrated apparatus according to any one of claim 1-3, is characterized in that: described limestone slurry liquid pool (9) bottom is provided with the first agitator (12).
5. the flue gas desulfurization and denitrification integrated apparatus according to any one of claim 1-3, is characterized in that: described lime stone slurry case (11) bottom is provided with the second agitator (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520732146.5U CN204952624U (en) | 2015-09-17 | 2015-09-17 | Desulfurization and denitrification integrated device for smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520732146.5U CN204952624U (en) | 2015-09-17 | 2015-09-17 | Desulfurization and denitrification integrated device for smoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204952624U true CN204952624U (en) | 2016-01-13 |
Family
ID=55047722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520732146.5U Expired - Fee Related CN204952624U (en) | 2015-09-17 | 2015-09-17 | Desulfurization and denitrification integrated device for smoke |
Country Status (1)
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|---|---|
| CN (1) | CN204952624U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109692560A (en) * | 2017-10-20 | 2019-04-30 | 同方环境股份有限公司 | A kind of two-stage oxidation wet type desulfurizing denitrification integrated device |
| CN111330428A (en) * | 2020-03-04 | 2020-06-26 | 山东鲁北企业集团总公司 | Method for ultralow emission of tail gas of device for preparing sulfuric acid and byproduct cement from gypsum |
-
2015
- 2015-09-17 CN CN201520732146.5U patent/CN204952624U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109692560A (en) * | 2017-10-20 | 2019-04-30 | 同方环境股份有限公司 | A kind of two-stage oxidation wet type desulfurizing denitrification integrated device |
| CN111330428A (en) * | 2020-03-04 | 2020-06-26 | 山东鲁北企业集团总公司 | Method for ultralow emission of tail gas of device for preparing sulfuric acid and byproduct cement from gypsum |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 1506 Xihu District, Zhejiang, Wensanlu Road, No. 310000, room 508, Patentee after: Zhejiang North Peak Environmental Engineering Co., Ltd. Address before: 1506 Xihu District, Zhejiang, Wensanlu Road, No. 310000, room 508, Patentee before: Hangzhou Beigaofeng Electric Power Engineering Design Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20190917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |