CN202606007U - Ammonia desulfurization and denitrification tower - Google Patents
Ammonia desulfurization and denitrification tower Download PDFInfo
- Publication number
- CN202606007U CN202606007U CN 201220074963 CN201220074963U CN202606007U CN 202606007 U CN202606007 U CN 202606007U CN 201220074963 CN201220074963 CN 201220074963 CN 201220074963 U CN201220074963 U CN 201220074963U CN 202606007 U CN202606007 U CN 202606007U
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- tower
- desulfurization
- layer
- riser
- column plate
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Abstract
The utility model discloses an ammonia desulfurization and denitrification tower. The tower comprises a venturi tower (1), a cylindrical tower (4) and a tower external recycling system, wherein the tower external recycling system consists of a tower external recycling pool (8), a concentrated liquid recycling pump (9), a recycling water tank (12) and a boosting water pump (13); a denitrification spray layer (2) and an ammonia spray layer (3) are arranged on the venturi tower (1), and the denitrification spray layer (2) is connected with a tower bottom oxidation pool (5) at the bottom of the cylindrical tower (4) through a weak liquid recycling pump (6); the cylindrical tower (4) comprises the tower bottom oxidation pool (5), a tower plate (7), desulfurization spray layers (10), an ascension pipe tower plate (11), washing escape prevention layers (14), folded plate type demisters (15), a demisting spray pipe (16), a collinear chimney (17), a backflow liquid port (18) and an oxidation air inlet (19); liquid in the desulfurization spray layers (10) enters the tower external recycling pool (8) through the tower plate (7); and branches are respectively formed on tower exit pipelines of the tower plate (7) and the ascension pipe tower plate (11) and connected with the tower bottom oxidation pool (5) through valves. By the tower, desulfurization and denitrification processes are integrated, so that the tower has the advantages that the tower has a good denitrification effect, occupies a small space, is compact in structure and the like.
Description
Technical field
The utility model is applicable to and a kind ofly removes the tower of SOx in the flue gas, NOx with ammoniacal liquor, belongs to the environmental protection equipment field.
Background technology
SOx, NOx are the main sources of atmosphere pollution, have caused huge harm to environment.
At present; The flue gas desulfurization technique comparative maturity; Wherein wet processing occuping market share is maximum; Still the selective catalytic reduction (SCR) of flue-gas denitration process overwhelming majority employing at present, this method utilizes ammonia under the effect of catalyst, NOx to be reduced to N2 as reducing agent, process system and equipment more complicated.Existing device systems all is with the processing of coming of desulphurization denitration branch; Whole desulfurizing and denitrifying process complicacy, equipment investment expense height have been caused; The utility model combines existing fume treatment auxiliary; Develop a kind of reliable, flue gas desulfurization, denitration device that cost of investment is lower, tally with the national condition, have application promise in clinical practice.
The utility model content
The utility model purpose is to provide that a kind of equipment resistance is little, energy consumption is low, small investment, floor space is little, operating cost is low, maintenance is easy and the device of treatment S Ox, two kinds of pollutants of NOx simultaneously.Its chemical principle is:
1, high temperature desulfurizing reaction: SO
2+ 2NH
3H
2O=(NH
4)
2SO
3+ H
2O
2, denitration reaction: 2 (NH
4)
2SO
3+ 2NOx=2x (NH
4)
2SO4+N
2
The utility model comprises venturi tower (1) and cylinder tower (4) and tower external circulating system.The tower external circulating system is made up of tower outer circulation pond (8), dope circulating pump (9), circulation water pot (12) and booster water pump (13).Denitration spraying layer (2), ammonia spray layer (3) are set on the venturi tower (1), and wherein the denitration spray is connected through the desulfurization liquid pool (5) of thin liquid circulating pump (6) with cylinder tower (4) bottom; Cylinder tower (4) comprising: oxidation pond at the bottom of the tower (5), column plate (7), desulfurization spraying layer (10), riser column plate (11), the anti-escape layer (14) of washing, folded plate type demister (15), demist shower (16), in line chimney (17), phegma interface (18) and oxidation wind inlet (19); Wherein the liquid of desulfurization spraying layer (10) gets into tower outer circulation pond (8) through column plate (7); The tower pipeline that goes out of column plate (7) and riser column plate (11) all has branch road, is connected with oxidation pond at the bottom of the tower (5) through valve.
Described column plate and riser column plate all adopt the carbon steel manufacturing, and all tower internals all adopt the anticorrosion structure form, are beneficial to anticorrosive construction.
Described riser column plate is provided with one or more riseies; A flat cap that keeps off the rain is arranged at the top of riser; The cap that keeps off the rain links to each other with supporting member with riser, and the spray liquid that is used to descend forms liquid film and uprising gas even contact on the cap that keeps off the rain, heat transfer, mass transfer and react; Riser outlet and the distance between the cap of keeping off the rain equal the inside radius of riser, and the external diameter of the cap that keeps off the rain equals the overall diameter of riser.
Described ammonia process of desulfurization denitrating tower is provided with two ammonia spray points, and first ammonification water spot is located at ammonia spray layer place, is positioned at the throat of venturi tower, is used to make alkaline environment; Second ammonification water spot is located at desulfurization spraying layer place, is positioned at the downstream of dope circulating pump, is used to regulate tower outer circulation liquid pool pH value of solution value.
The adapter and the nozzle of described denitration spraying layer and ammonia spray layer all adopt the 316L made, can high temperature resistant and corrosion.
Described cylinder tower is provided with two-layer desulfurization spraying layer, the anti-escape layer of two-layer washing and two-layer folded plate type demister; The shower and the nozzle that are connected on desulfurization spraying layer, the anti-escape layer of washing and the folded plate type demister are all selected the manufacturing of fiberglass organic material for use; Be installed on the brace summer in the cylinder tower, brace summer and fixed component are all done corresponding preservative treatment.
Described cylinder tower, its base plate are horizontal by 10～25 ° of angles, and this version helps in time discharging tower to slag mud and handles outward.
The bottom of described cylinder tower is provided with a plurality of phegma interfaces, and the phegma interface is 45 ° of inclination angles, with oxidation wind inlet interlaced arrangement, makes phegma and oxidation air form eddy flow, fully stirs, and reaches the effect of oxidation ammonium sulfite.
Described in line chimney adopts flange to be connected with the cylinder tower, and the cylinder tower bears and transmit the load of in line chimney, easy accessibility.
Description of drawings
Fig. 1 is the structural representation of the utility model
Fig. 2 is the structural representation of the utility model riser column plate
The specific embodiment
For the structure, technical scheme and the advantage that make the utility model is clearer, the utility model specific embodiment is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, flue gas gets into venturi tower (1), with (the NH of denitration spraying layer (2) spray
4)
2SO
3Reduction reaction takes place in contact, and oxidation pond (5) was connected at the bottom of denitration spraying layer (2) passed through the tower of circulating pump (6) bottom cylinder tower (4), and the ammoniacal liquor with ammonia spray layer (3) spray contacts afterwards, and desulphurization reaction takes place fast, generates (NH
4)
2SO
3, make (NH
4)
2SO
3Concentration moment change helps the further generation of denitration reaction greatly; Flue gas after the denitration desulfurization is got into by cylinder tower (4) middle and lower part; Behind column plate (7) upwards with the circulation fluid counter current contacting of desulfurization spraying layer (10) spray; Desulfurization and denitrification reaction further takes place, and the liquid of desulfurization spraying layer (10) enters tower outer circulation pond (8) through column plate (7); Oxidation pond (5) is connected at the bottom of the tower of dope circulating pump (9) bottom cylinder tower (4); Flue gas after being purified rises gas by riser column plate (11) after anti-escape layer (14) of washing and two-layer folded plate type demister (15) are removed fine drop and aerosol, discharges from line chimney (17).
Describe the utility model in detail through the practical implementation case below:
1, working condition:
| Exhaust gas volumn | m 3/h | 2045000 (operating modes) |
| Flue-gas temperature | ℃ | 135～165 |
| TRANSIENT HIGH TEMPERATURE | ℃ | 180 |
| The fault temperature | ℃ | 195 |
| Dustiness | mg/m 3 | 220～300 |
| SO 2Concentration | mg/Nm 3 | 4500～5500 |
| Water capacity | Vol％ | 6.27 |
2, desulfurizing tower important technological parameters:
3, desulfurized effect:
This shows that the desulfur denitrate dust collecting equipment of the utility model has good dust-removal and desulfurizing effect and simple to operate, easy to maintenance, flue gas after being purified can reach discharging standards.
Claims (10)
1. ammonia process of desulfurization denitrating tower comprises: venturi tower (1) and cylinder tower (4) and tower external circulating system, and the tower external circulating system is made up of tower outer circulation pond (8), dope circulating pump (9), circulation water pot (12) and booster water pump (13); Venturi tower (1) is provided with denitration spraying layer (2), ammonia spray layer (3), and oxidation pond (5) was connected at the bottom of wherein denitration spraying layer (2) passed through the tower of thin liquid circulating pump (6) bottom cylinder tower (4); Cylinder tower (4) comprising: oxidation pond at the bottom of the tower (5), column plate (7), desulfurization spraying layer (10), riser column plate (11), the anti-escape layer (14) of washing, folded plate type demister (15), demist shower (16) and in line chimney (17), phegma interface (18), oxidation wind inlet (19); Wherein the liquid of desulfurization spraying layer (10) gets into tower outer circulation pond (8) through column plate (7); The tower pipeline that goes out of column plate (7) and riser column plate (11) all has branch road, is connected with oxidation pond at the bottom of the tower (5) through valve.
2. ammonia process of desulfurization denitrating tower according to claim 1; It is characterized in that: riser column plate (11) is provided with one or more riseies; A flat cap that keeps off the rain is arranged at the top of riser; The cap that keeps off the rain links to each other with supporting member with riser, and the spray liquid that is used to descend forms liquid film and uprising gas even contact on the cap that keeps off the rain, heat transfer, mass transfer and react.
3. ammonia process of desulfurization denitrating tower according to claim 1 is characterized in that: outlet of the riser of riser column plate (11) and the distance between the cap of keeping off the rain equal the inside radius of riser, and the external diameter of the cap that keeps off the rain equals the overall diameter of riser.
4. ammonia process of desulfurization denitrating tower according to claim 1 is characterized in that: column plate (7) and riser column plate (11), all adopt the carbon steel manufacturing, and all tower internals all adopt the anticorrosion structure form, are beneficial to anticorrosive construction.
5. ammonia process of desulfurization denitrating tower according to claim 1 is characterized in that: first ammonification water spot is located at ammonia spray layer (3) and locates, and is positioned at the throat of venturi tower (1), is used to make alkaline environment; Second ammonification water spot is located at desulfurization spraying layer (10) and locates, and is positioned at the downstream of dope circulating pump (9), is used to regulate tower outer circulation liquid pool pH value of solution value.
6. ammonia process of desulfurization denitrating tower according to claim 1 is characterized in that: the adapter and the nozzle of denitration spraying layer (2), ammonia spray layer (3) all adopt the 316L made, can high temperature resistant and corrosion.
7. ammonia process of desulfurization denitrating tower according to claim 1; It is characterized in that: cylinder tower (4) is provided with two-layer desulfurization spraying layer (10), the anti-escape layer (14) of two-layer washing, two-layer folded plate type demister (15); The shower and the nozzle that are connected on desulfurization spraying layer (10), the anti-escape layer (14) of washing and the folded plate type demister (15) are all selected the manufacturing of fiberglass organic material for use; Be installed on the brace summer in the cylinder tower (4), brace summer and fixed component are all done corresponding preservative treatment.
8. ammonia process of desulfurization denitrating tower according to claim 1 is characterized in that: in line chimney (17) adopts flange to be connected with cylinder tower (4), bears and transmit the load of in line chimney (17), easy accessibility.
9. ammonia process of desulfurization denitrating tower according to claim 1 is characterized in that: the base plate of cylinder tower (4) is horizontal by 10～25 ° of angles, and this version helps in time discharging tower to slag mud and handles outward.
10. ammonia process of desulfurization denitrating tower according to claim 1; It is characterized in that: the bottom of cylinder tower (4) is provided with a plurality of phegma interfaces (18); Phegma interface (18) is 45 ° of inclination angles, with oxidation wind inlet (19) interlaced arrangement, makes phegma and oxidation air form eddy flow; Fully stir, reach the effect of oxidation ammonium sulfite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220074963 CN202606007U (en) | 2012-03-02 | 2012-03-02 | Ammonia desulfurization and denitrification tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220074963 CN202606007U (en) | 2012-03-02 | 2012-03-02 | Ammonia desulfurization and denitrification tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202606007U true CN202606007U (en) | 2012-12-19 |
Family
ID=47339740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220074963 Expired - Lifetime CN202606007U (en) | 2012-03-02 | 2012-03-02 | Ammonia desulfurization and denitrification tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202606007U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301739A (en) * | 2013-06-13 | 2013-09-18 | 江苏远东环保工程有限公司 | Simple ammonia-method desulfurization tower with internally-arranged reactor |
| CN104906938A (en) * | 2015-06-15 | 2015-09-16 | 中石化南京工程有限公司 | Treatment method and device of tail gas of sulfur recovery device |
| CN105126596A (en) * | 2015-09-29 | 2015-12-09 | 湖南平安环保股份有限公司 | Single-tower multi-cycle flue gas treatment device and process thereof |
| CN108404640A (en) * | 2018-05-15 | 2018-08-17 | 中冶京诚工程技术有限公司 | Flue gas desulfurization and denitrification integrated device and method |
| CN108686491A (en) * | 2017-04-12 | 2018-10-23 | 中国石油化工股份有限公司 | A kind of flue-gas dust-removing and desulfurization tower and dust-collecting sulfur-removing method |
| CN108686492A (en) * | 2017-04-12 | 2018-10-23 | 中国石油化工股份有限公司 | Flue-gas dust-removing and desulfurization tower and dust-collecting sulfur-removing method |
| CN108686490A (en) * | 2017-04-12 | 2018-10-23 | 中国石油化工股份有限公司 | A kind of fuel gas desulfurization gas wash tower and desulfurization and dust-removal method |
| CN108686493A (en) * | 2017-04-12 | 2018-10-23 | 中国石油化工股份有限公司 | Flue-gas dust-removing and desulfurization tower and dust-removing and desulfurization process |
| CN109603471A (en) * | 2018-11-29 | 2019-04-12 | 株洲冶炼集团股份有限公司 | The absorption process of tail gas in a kind of indium nitrate preparation process |
| CN112023603A (en) * | 2020-09-24 | 2020-12-04 | 浙江大学 | Ship tail gas washing and purifying system and method suitable for complex swinging/starting and stopping working conditions |
-
2012
- 2012-03-02 CN CN 201220074963 patent/CN202606007U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301739A (en) * | 2013-06-13 | 2013-09-18 | 江苏远东环保工程有限公司 | Simple ammonia-method desulfurization tower with internally-arranged reactor |
| CN104906938A (en) * | 2015-06-15 | 2015-09-16 | 中石化南京工程有限公司 | Treatment method and device of tail gas of sulfur recovery device |
| CN104906938B (en) * | 2015-06-15 | 2017-09-29 | 中石化南京工程有限公司 | The processing method and its device of a kind of sulfur recovery facility tail gas |
| CN105126596A (en) * | 2015-09-29 | 2015-12-09 | 湖南平安环保股份有限公司 | Single-tower multi-cycle flue gas treatment device and process thereof |
| CN108686492A (en) * | 2017-04-12 | 2018-10-23 | 中国石油化工股份有限公司 | Flue-gas dust-removing and desulfurization tower and dust-collecting sulfur-removing method |
| CN108686491A (en) * | 2017-04-12 | 2018-10-23 | 中国石油化工股份有限公司 | A kind of flue-gas dust-removing and desulfurization tower and dust-collecting sulfur-removing method |
| CN108686490A (en) * | 2017-04-12 | 2018-10-23 | 中国石油化工股份有限公司 | A kind of fuel gas desulfurization gas wash tower and desulfurization and dust-removal method |
| CN108686493A (en) * | 2017-04-12 | 2018-10-23 | 中国石油化工股份有限公司 | Flue-gas dust-removing and desulfurization tower and dust-removing and desulfurization process |
| CN108686493B (en) * | 2017-04-12 | 2020-02-14 | 中国石油化工股份有限公司 | Flue gas dust removal desulfurization tower and dust removal desulfurization process |
| CN108686490B (en) * | 2017-04-12 | 2020-06-09 | 中国石油化工股份有限公司 | Flue gas desulfurization and dust removal tower and desulfurization and dust removal method |
| CN108404640A (en) * | 2018-05-15 | 2018-08-17 | 中冶京诚工程技术有限公司 | Flue gas desulfurization and denitrification integrated device and method |
| CN108404640B (en) * | 2018-05-15 | 2023-08-18 | 中冶京诚工程技术有限公司 | Flue gas desulfurization and denitrification integrated device and method |
| CN109603471A (en) * | 2018-11-29 | 2019-04-12 | 株洲冶炼集团股份有限公司 | The absorption process of tail gas in a kind of indium nitrate preparation process |
| CN112023603A (en) * | 2020-09-24 | 2020-12-04 | 浙江大学 | Ship tail gas washing and purifying system and method suitable for complex swinging/starting and stopping working conditions |
| CN112023603B (en) * | 2020-09-24 | 2023-09-15 | 浙江大学 | Ship tail gas washing and purifying system and method suitable for swing/start-stop complex working conditions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |
|
| CX01 | Expiry of patent term |