CN107970765A - A kind of hot air blow type desulfurizing tower of multiple spot inlet air - Google Patents
A kind of hot air blow type desulfurizing tower of multiple spot inlet air Download PDFInfo
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- CN107970765A CN107970765A CN201610938428.XA CN201610938428A CN107970765A CN 107970765 A CN107970765 A CN 107970765A CN 201610938428 A CN201610938428 A CN 201610938428A CN 107970765 A CN107970765 A CN 107970765A
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- Prior art keywords
- flue gas
- inlet
- tower
- tower body
- multiple spot
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The present invention provides a kind of hot air blow type desulfurizing tower of multiple spot inlet air, including tower body, if exhanst gas outlet, demister, spray-absorption layer and dry flue gas air inlet are disposed with tower body from top to bottom, the lower section of the spray-absorption layer, which is equipped with to the annular of tower body contract, spurts necking, the tower body periphery is circumferential to be equipped with flue gas inlet box, and the flue gas air inlet is in inside flue gas inlet box.The present invention by multiple spot inlet air, spurt necking by way of spray-absorption layer is combined, while traditional hollow-spraying-tower technological merit is retained, using flue gas even distribution rectification is realized in multiple spot inlet air and necking of spurting, preventing flue gas from climbing, wall is short-circuit, realize sprayed slurry redistribution and extends the desulphurization reaction time, so as to improve desulfuration efficiency, reduce spray flux, and then save circulating pump energy consumption, reduce the volume of tower, reduce equipment and operation cost, the economic benefit and social benefit with highly significant.
Description
Technical field
The present invention relates to Wet Flue Gas Desulfurization Technique field, particularly one kind can effectively reduce sulfur dioxide in flue gas concentration of emission
Multiple spot inlet air hot air blow type desulfurizing tower.
Background technology
Cut down the discharge capacity of sulfur dioxide, control Atmospheric SO_2 Pollution, environment protection quality, are current and not
Carry out one of important topic of China environmental protection in the long duration.Sulfur dioxide pollution control technology is a lot of, but wherein flue gas
Desulfurization is the irreplaceable technology of effective abatement SO2 emissions.The method of flue gas desulfurization is very much, according to physics and chemistry
Basic principle, can be generally divided into three kinds of absorption process, absorption method and catalysis method.Absorption process is sulfur dioxide in purifying smoke
Most important, most widely used method.Absorption process is divided into dry and wet again.
Wet desulphurization traditional at present, which absorbs, is mainly the following technology：Spray void tower technology, pallet tower technology, bubbling
Tower technology, fluid column tower technology, packed column technology.For user perspective, the selection on absorption tower requires the base in low operating cost
On plinth, reach high efficiency as far as possible, and it is easy to operate.In the case that flue gas flow rate is identical in tower, spray void tower is
Resistance of uniting is minimum, and the resistance of pallet tower takes second place, and the resistance of bubble tower, liquid column tower and packed tower is larger；In addition void tower internals are sprayed
Less, the probability of internal incrustation is smaller, and operation expense is relatively low, and technique is the most ripe.
However, flue gas, which easily occurs, for existing spray void tower climbs flue gas flow field Biased flow phenomenon in wall short circuit and tower, Er Qiesuo
Need spray flux big, equipment operating cost is higher, and desulfuration efficiency needs to be further improved.
For case above, existing wet desulphurization absorption system need will spray void tower in unobvious increase equipment investment and
Further optimization is done under conditions of operating cost, desulfurization effect is further improved while desulphurization system operation stability is improved
Rate.
The content of the invention
, can be effective the present invention provides a kind of hot air blow type desulfurizing tower of multiple spot inlet air for overcome the deficiencies in the prior art
Prevent flue gas from climbing wall short-circuit conditions, flue gas flow field Biased flow phenomenon in tower, and spray flux is small, desulfuration efficiency is high, is highly suitable for
Wet Flue Gas Desulfurization Technique.
The technical solution adopted by the present invention to solve the technical problems is：A kind of hot air blow type desulfurizing tower of multiple spot inlet air, bag
Tower body is included, if being disposed with exhanst gas outlet, demister, spray-absorption layer and dry flue gas air inlet, institute in tower body from top to bottom
State flue gas air inlet circumferential direction to be uniformly distributed on tower body, the lower section of the spray-absorption layer, which is equipped with to the annular of tower body contract, sprays
Rise necking.
As further preferred embodiment, the flue gas air inlet is arranged on tower body middle and lower part position.
As further preferred embodiment, the quantity of the flue gas air inlet is 6 or 8.
As further preferred embodiment, the flue gas air inlet is obliquely installed in tower body surrounding, it is in tower
Internal one end is opposite to be below.
As further preferred embodiment, the center line of the flue gas air inlet and tower body horizontal plane angle for 10~
15°。
As further preferred embodiment, the tower body periphery is circumferential to be equipped with flue gas inlet box, the flue gas inlet air
Be tightly connected between case and tower body, the flue gas air inlet is in inside flue gas inlet box, flue gas inlet box be equipped with flue gas into
Mouthful.
As further preferred embodiment, the section of the flue gas inlet box is cross-section or variable cross-section.
As further preferred embodiment, if the absorption spraying layer is dried layer, every layer absorbs below spraying layer
Equipped with the necking of spurting.
As further preferred embodiment, it is described spurt necking include be connected with each other from bottom to top the oblique section of necking,
Necking straight section and the oblique section of flaring, the internal diameter of the necking straight section are less than the internal diameter of absorption tower tower body.
As further preferred embodiment, the inclination angle between the inclined plane and tower body vertical axis of the oblique section of necking
For 20~30 °, the inclined plane of the oblique section of the flaring is 30~60 ° with the inclination angle of tower body vertical axis, the necking straight section with
Tower body vertical axis is parallel.
The positive effect of the present invention：Side of the invention by the way that multiple spot inlet air, necking of spurting are combined with spray-absorption layer
Formula, while traditional hollow-spraying-tower technological merit is retained, realizes flue gas even distribution rectification using multiple spot inlet air and necking of spurting, prevents
Only flue gas climbs wall short circuit, realizes sprayed slurry redistribution and extend the desulphurization reaction time, so as to improve desulfuration efficiency, reduce spray
Amount, and then circulating pump energy consumption is saved, reduce the volume of tower, reduce equipment and operation cost, the economic benefit with highly significant
And social benefit.
Brief description of the drawings
Fig. 1 is the structure diagram of desulfurizing tower of the present invention；
Fig. 2 is the structure diagram of flue gas inlet box of the present invention；
Fig. 3 is the schematic cross-sectional view in A-A faces in Fig. 2；
Fig. 4 is the structure diagram of necking of the present invention of spurting.
Embodiment
Below in conjunction with the accompanying drawings to a preferred embodiment of the present invention will be described in detail.
Referring to figs. 1 to Fig. 4, the preferred embodiment of the present invention provides a kind of hot air blow type desulfurizing tower of multiple spot inlet air, including tower body
1, if exhanst gas outlet 6, demister 5, spray-absorption layer 4 and dry flue gas air inlet 7, institute are disposed with tower body 1 from top to bottom
State 7 circumferential direction of flue gas air inlet to be uniformly distributed on tower body 1, the lower section of the spray-absorption layer 4 is equipped with the ring to 1 contract of tower body
Shape is spurted necking 3.
Preferably, the flue gas air inlet 7 is arranged on 1 middle and lower part position of tower body, and the quantity of the flue gas air inlet 7 is 6
It is a or 8.
The flue gas air inlet 7 is obliquely installed in tower body surrounding, its one end being in tower body is opposite to be below, institute
It is 10~15 ° to state the center line of flue gas air inlet 7 and 1 horizontal plane angle of tower body.The cross sectional shape of the flue gas air inlet 7 can be with
To be square or circular.
The periphery of tower body 1 is circumferential to be equipped with flue gas inlet box 2, is tightly connected between the flue gas inlet box 2 and tower body 1, institute
State flue gas air inlet 7 to be in inside flue gas inlet box 2, flue gas inlet box 2 is equipped with gas inlet.
The section of the flue gas inlet box 2 can be cross-section or variable cross-section.
If the absorption spraying layer 4 is dried layer, every layer absorbs the lower section of spraying layer 4 and is equipped with the necking 3 of spurting.
The necking 3 of spurting includes the oblique section 8 of necking, necking straight section 9 and the oblique section 10 of flaring being connected with each other from bottom to top, institute
The internal diameter for stating necking straight section 9 is less than the internal diameter of absorption tower tower body.
Inclination angle between the inclined plane and tower body vertical axis of the oblique section 8 of necking is 20~30 °, the oblique section 10 of flaring
The inclination angle of inclined plane and tower body vertical axis be 30~60 °, the necking straight section 9 is parallel with tower body vertical axis.
The flue gas inlet box 2 of former flue gas from 1 side of tower body enters, and then enters through multiple flue gas air inlets 7 in tower body 1
Portion, this setting are more advantageous to weakening reflux in tower vortex, reduce crushing, extend gas-liquid contact time；Then flue gas rises to spray
Necking 3 is risen, under the action of the air-flow that spurts, is formed about recirculating zone being flared oblique section 10, i.e., slurries after smoke reaction with forming
The breakup of drop after, be distributed again so that there is certain back-mixing in slurries, again with the SO in flue gas2Occur Deng acid ingredient
Chemical reaction.
For former flue gas when process spurts necking 3, the oblique section 8 of necking for necking 3 of spurting is directed toward absorption tower upper center obliquely,
It can prevent flue gas that the flue gas of tower wall circumference is pooled to close to absorption tower center side close to tower wall along spray coverage hole escape
To spray compact district；Absorption tower lower central is directed toward by the oblique section 10 of flaring for the necking that makes to spurt obliquely, absorption will be sprayed onto
The slurries to flow downward in tower wall along tower wall introduce spraying zone, make this fraction slurries that desulphurization reaction occur with flue gas again, realize
Slurries redistribute function.
Multiple equally distributed atomizers are set on spray-absorption layer 4, and are connected by circulating line with slurry pool,
Being sprayed with pumping the lye in slurry pool to atomizer, lye fog is formed, with the former flue gas entered from flue gas inlet box 2
Come into full contact with and react.
Through the flue gas that desulphurization reaction is crossed in tower body 1 it is further up to demister 5, fog is eliminated in demister 5,
Demister 5 may also set up multilayer, and exhanst gas outlet 6 of the flue gas after final purification through the top of tower body 1 is discharged.
After applying the present invention, there is following advantage：By the way that multiple spot inlet air, necking of spurting are combined with spray-absorption layer,
While retaining traditional hollow-spraying-tower technological merit, realize flue gas even distribution rectification using multiple spot inlet air and necking of spurting, prevent cigarette
Gas climbs wall short circuit, realizes sprayed slurry redistribution and extends the desulphurization reaction time, so as to improve desulfuration efficiency, reduces spray flux,
Circulating pump energy consumption is saved, reduces the volume of tower, reduces equipment and operation cost, it is anticipated that its economic effect with highly significant
Benefit and social benefit.
It is above-described to be merely a preferred embodiment of the present invention, it should be understood that the explanation of above example is simply used
Understand the method and its core concept of the present invention in help, the protection domain being not intended to limit the present invention is all the present invention's
Any modification for being made within thought and principle, equivalent substitution etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of hot air blow type desulfurizing tower of multiple spot inlet air, including tower body, it is characterised in that：It is disposed with from top to bottom in tower body
If exhanst gas outlet, demister, spray-absorption layer and dry flue gas air inlet, the flue gas air inlet circumferential direction is uniformly distributed in tower body
On, the lower section of the spray-absorption layer, which is equipped with to the annular of tower body contract, spurts necking.
A kind of 2. hot air blow type desulfurizing tower of multiple spot inlet air according to claim 1, it is characterised in that：The flue gas air inlet
It is arranged on tower body middle and lower part position.
A kind of 3. hot air blow type desulfurizing tower of multiple spot inlet air according to claim 1, it is characterised in that：The flue gas air inlet
Quantity be 6 or 8.
A kind of 4. hot air blow type desulfurizing tower of multiple spot inlet air according to claim 1, it is characterised in that：The flue gas air inlet
It is obliquely installed in tower body surrounding, its one end being in tower body is opposite to be below.
A kind of 5. hot air blow type desulfurizing tower of multiple spot inlet air according to claim 4, it is characterised in that：The flue gas air inlet
Center line and tower body horizontal plane angle be 10~15 °.
A kind of 6. hot air blow type desulfurizing tower of multiple spot inlet air according to claim 1, it is characterised in that：The outer collarette of the tower body
To equipped with flue gas inlet box, it is tightly connected between the flue gas inlet box and tower body, the flue gas air inlet is in flue gas inlet air
Inside case, flue gas inlet box is equipped with gas inlet.
A kind of 7. hot air blow type desulfurizing tower of multiple spot inlet air according to claim 6, it is characterised in that：The flue gas inlet box
Section be cross-section or variable cross-section.
A kind of 8. hot air blow type desulfurizing tower of multiple spot inlet air according to claim 1, it is characterised in that：The absorption spraying layer
If being dried layer, every layer absorbs spraying layer lower section and is equipped with the necking of spurting.
A kind of 9. hot air blow type desulfurizing tower of multiple spot inlet air according to claim 1, it is characterised in that：The necking bag that spurts
Include the oblique section of the necking being connected with each other from bottom to top, necking straight section and the oblique section of flaring, the internal diameter of the necking straight section and be less than absorption tower
The internal diameter of tower body.
A kind of 10. hot air blow type desulfurizing tower of multiple spot inlet air according to claim 9, it is characterised in that：The oblique section of necking
Inclined plane and tower body vertical axis between inclination angle be 20~30 °, the inclined plane and tower body vertical axis of the oblique section of the flaring
Inclination angle be 30~60 °, the necking straight section is parallel with tower body vertical axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610938428.XA CN107970765A (en) | 2016-10-24 | 2016-10-24 | A kind of hot air blow type desulfurizing tower of multiple spot inlet air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610938428.XA CN107970765A (en) | 2016-10-24 | 2016-10-24 | A kind of hot air blow type desulfurizing tower of multiple spot inlet air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107970765A true CN107970765A (en) | 2018-05-01 |
Family
ID=62005062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610938428.XA Pending CN107970765A (en) | 2016-10-24 | 2016-10-24 | A kind of hot air blow type desulfurizing tower of multiple spot inlet air |
Country Status (1)
| Country | Link |
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| CN (1) | CN107970765A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10058548C1 (en) * | 2000-11-24 | 2001-10-25 | Lurgi Lentjes Bischoff Gmbh | Scrubbing tower, used in plant for desulfurizing flue gas arranged behind boiler firing system, has flue gas inlets arranged at same height on opposite-lying sections of tower which open out into adsorption zone |
| CN201101941Y (en) * | 2007-10-17 | 2008-08-20 | 南京师范大学 | Desulfurization and dust removal integrated device of fiberglass of industry coal-fired boiler |
| CN201353476Y (en) * | 2009-02-01 | 2009-12-02 | 中冶集团北京冶金设备研究设计总院 | Seawater flue gas desulfurization spray adsorption tower |
| CN204352753U (en) * | 2014-12-24 | 2015-05-27 | 湖南麓南脱硫脱硝科技有限公司 | For the spray-absorption device of wet desulphurization |
| CN104759199A (en) * | 2015-03-18 | 2015-07-08 | 西安热工研究院有限公司 | Flue gas desulfurization absorption system |
| CN205308097U (en) * | 2016-01-05 | 2016-06-15 | 浙江蓝天求是环保股份有限公司 | High -efficient desulfurization dust removal integrated device |
| CN206138999U (en) * | 2016-10-24 | 2017-05-03 | 南京凯盛国际工程有限公司 | Formula desulfurizing tower that spurts of multiple spot air inlet |
-
2016
- 2016-10-24 CN CN201610938428.XA patent/CN107970765A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10058548C1 (en) * | 2000-11-24 | 2001-10-25 | Lurgi Lentjes Bischoff Gmbh | Scrubbing tower, used in plant for desulfurizing flue gas arranged behind boiler firing system, has flue gas inlets arranged at same height on opposite-lying sections of tower which open out into adsorption zone |
| CN201101941Y (en) * | 2007-10-17 | 2008-08-20 | 南京师范大学 | Desulfurization and dust removal integrated device of fiberglass of industry coal-fired boiler |
| CN201353476Y (en) * | 2009-02-01 | 2009-12-02 | 中冶集团北京冶金设备研究设计总院 | Seawater flue gas desulfurization spray adsorption tower |
| CN204352753U (en) * | 2014-12-24 | 2015-05-27 | 湖南麓南脱硫脱硝科技有限公司 | For the spray-absorption device of wet desulphurization |
| CN104759199A (en) * | 2015-03-18 | 2015-07-08 | 西安热工研究院有限公司 | Flue gas desulfurization absorption system |
| CN205308097U (en) * | 2016-01-05 | 2016-06-15 | 浙江蓝天求是环保股份有限公司 | High -efficient desulfurization dust removal integrated device |
| CN206138999U (en) * | 2016-10-24 | 2017-05-03 | 南京凯盛国际工程有限公司 | Formula desulfurizing tower that spurts of multiple spot air inlet |
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