CN109276992A - Desulfurizing tower smoke processing system - Google Patents
Desulfurizing tower smoke processing system Download PDFInfo
- Publication number
- CN109276992A CN109276992A CN201811175870.7A CN201811175870A CN109276992A CN 109276992 A CN109276992 A CN 109276992A CN 201811175870 A CN201811175870 A CN 201811175870A CN 109276992 A CN109276992 A CN 109276992A
- Authority
- CN
- China
- Prior art keywords
- desulfurizing tower
- tower
- flue gas
- processing system
- separation device
- 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.)
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Classifications
-
- 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
- B01D53/002—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 by condensation
-
- 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
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- 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
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- 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 desulfurizing tower smoke processing system, including desulfurizing tower, the flue gas condensing tower being arranged in outside desulfurizing tower and injection evaporating separation device, the bottom of flue gas condensing tower is equipped with recycling pond, tower wall is equipped with the first gas inlet of connection flue, and the top of the first gas inlet is equipped with the first spraying mechanism of multilayer；The injector being connected to recycling pond is equipped in injection evaporating separation device, the bottom for spraying evaporating separation device is provided with water-accepting tank, and water-accepting tank is connected to the first spraying mechanism, and injection evaporating separation device is equipped with air-inlet window and air outlet.The flue gas of inventive desulfurization tower outlet enters the purpose that progress dehumidification by condensation in flue gas condensing tower can reach eliminating white smoke.In addition, the injection evaporating separation device uses air as cold source, cooling olighydria when power plant's summer high temperature can be solved the problems, such as.
Description
Technical field
The present invention relates to Wet Flue Gas Desulfurization Techniques, more particularly to a kind of desulfurizing tower smoke processing system.
Background technique
In China Today, with flue gas desulfurization technique include wet desulphurization, semi-dry desulphurization, dry desulfurization etc..
Wherein desulfurization method of limestone-gypsum technology due to desulfuration efficiency height, technology maturation, raw material are simple and easy to get and use the widest
It is general.Limestone-gypsum method flue gas desulfurization is also the process flow that domestic and international 80% or so large thermal power plant uses.Conventional limestone
Ammonia-plaster mode desulphurization system is without cooling and vaporising device outside tower, and to adjust water balance, the water of desulfurizing tower entrance cannot be greater than outlet
Otherwise water can generate a large amount of desulfurization wastewater, temperature has a limiting value in desulfurizing tower thus, not according to entering moisture content
Together, this limiting temperature is different, generally about at 43 DEG C or so.
When existing coal-fired power plant's exhaust emissions, since the flue gas of discharge tends to be saturated wet flue gas, when being discharged from chimney, meet
It is cold that a large amount of condensed waters can be precipitated, a large amount of vapor are generated, visually feels that a large amount of " white cigarette " has been discharged, belongs to a kind of vision
Pollution, and the water droplet that can land around chimney are formed " chimney rain ".
Existing eliminating white smoke technology first is that increase slurry heat exchanger, utility model patent 201721734197.7 increases de-
It exchanges heat after heat exchange, slurry heat exchanger and desulfurizing tower before sulphur tower, three parts integrated application, the waste heat of abundant recovered flue gas and slurries,
And flue gas is heated, the exhaust gas temperature of chimney is improved, with the raising of exhaust gas temperature, flue gas becomes unsaturated flue gas, carries water and steams
The ability of gas improves, and the vapor in flue gas is not easy to condense into droplet, and white plume disappears.But the technology slurry temperature drops
After low, while the flue-gas temperature of desulfurizing tower outlet is reduced, humidity of flue gas reduces, and a large amount of water is precipitated and enters desulfurizing tower, beats
The water balance of former desulfurizing tower is broken.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of desulfurizing tower smoke processing systems, to overcome the upper of the prior art
State defect.
To achieve the above object, the present invention provides a kind of desulfurizing tower smoke processing system, including desulfurizing tower, the desulfurizing tower
Top be equipped with the exhanst gas outlet that connect with flue；It further include flue gas condensing tower and the spray being arranged in outside the desulfurizing tower
Evaporating separation device is penetrated, the bottom of the flue gas condensing tower is equipped with recycling pond, and tower wall is equipped with the first of connection flue
The top of gas inlet, the first gas inlet is equipped with the first spraying mechanism of multilayer；Spray is equipped in the injection evaporating separation device
Emitter, the injector are connected to the recycling pond, and the bottom of the injection evaporating separation device is provided with water-accepting tank, described
Water-accepting tank is connected to first spraying mechanism, and the side wall of the injection evaporating separation device is equipped with air-inlet window, the injection
The top of evaporating separation device or the side wall on top are equipped with the air outlet being communicated with the atmosphere.
Preferably, the injector includes spray tube, and the spray tube is connected to the recycling pond, on the spray tube
Equipped with multiple injection spray heads.
Preferably, the injection sprinkler pressure >=1.5kg.
Preferably, the first demister is additionally provided with above first spraying mechanism.
Preferably, the bottom of the desulfurizing tower is provided with absorbent slurry pond, and desulfurizing tower top is set along flow of flue gas direction
The second spraying mechanism of multilayer is set, the absorbent slurry pond is connect with the second spraying mechanism, and the tower wall of the desulfurizing tower is equipped with
Connect the second gas inlet of flue gas inlet pipe.
Preferably, the second demister is additionally provided with above second spraying mechanism.
Preferably, further include the absorbent preparation system being placed in outside the desulfurizing tower, the absorbent preparation system with
The absorbent slurry pond is connected.
Preferably, slurry agitating device is equipped in the absorbent slurry pond.
It preferably, further include the desulfurization waste liquor processing unit being placed in outside the desulfurizing tower, the desulfurization waste liquor processing dress
It sets and is connected with the absorbent slurry pond.
As described above, desulfurizing tower smoke processing system of the present invention, has the advantages that present invention design is new
Grain husk, easy to use, the flue gas of desulfurizing tower outlet enters the purpose that progress dehumidification by condensation in flue gas condensing tower can reach eliminating white smoke, temperature
Humidity of flue gas after degree reduces reduces, and vapor condensation in part is drop in recycling pond, and the water recycled in pond enters spray
It penetrates in evaporating separation device after evaporating cooling to continue to be recycled in flue gas condensing tower and spray, by being sprayed in injection evaporating separation device
It penetrates under nozzle high-voltage and is sprayed with certain speed, form vacuum area, increase the gasification of water, heat-transfer surface can also be increased with atomizer
Product plays the role of filler, makes to recycle the water section evaporation in pond, remains former while achieving the effect that cooling water-recovering
The water balance of desulfurizing tower.The injection evaporating separation device uses air as cold source, can solve cooling water when power plant's summer high temperature
The problem of shortage.Because the inorganic matter in lime stone slurry is non-volatile, water is allowed to evaporate separation and secondary dirt will not be caused
Dye, therefore the present invention is suitable for desulfurization by lime gypsum method system, in addition, when the volatilization of ammonia in ammonia method desulfurizing system desulfurization wastewater
When concentration is in tolerance band, this system is equally applicable to the ammonia process of desulfurization.Spray evaporating separation device
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram for spraying evaporating separation device.
Component label instructions
1 desulfurizing tower
11 absorbent slurry ponds
12 second spraying mechanisms
13 second demisters
14 slurry agitating devices
2 flues
3 flue gas condensing towers
31 recycling ponds
32 first spraying mechanisms
33 first demisters
4 injection evaporating separation devices
41 injectors
411 spray tubes
412 injection spray heads
42 water-accepting tanks
43 air-inlet windows
44 air outlets
45 water circulating pumps
5 flue gas inlet pipes
6 absorbent preparation systems
7 desulfurization waste liquor processing units
8 air blowers
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off
The content shown is not intended to limit the invention enforceable qualifications so that those skilled in the art understands and reads, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention
Under the effect of can be generated and the purpose that can reach, the range that disclosed technology contents can be covered should all be still fallen in
It is interior.Meanwhile in this specification cited such as "upper", "lower", "left", "right", " centre " term, be merely convenient to describe
Be illustrated, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing technology without essence
It inside holds, when being also considered as the enforceable scope of the present invention.
As shown in Figure 1, the present invention provides a kind of desulfurizing tower smoke processing system, including desulfurizing tower 1, the desulfurizing tower 1
Bottom is provided with absorbent slurry pond 11, and the second spraying mechanism of multilayer 12 is arranged along flow of flue gas direction in 1 top of desulfurizing tower, described
Absorbent slurry pond 11 is connect with the second spraying mechanism 12, and the tower wall of the desulfurizing tower 1 is equipped with the second of connection flue gas inlet pipe 5
Gas inlet, the top of the desulfurizing tower 1 are equipped with the exhanst gas outlet connecting with flue 2.Second spraying mechanism 12
Top is additionally provided with the second demister 13, is used for demisting or dedusting.
As depicted in figs. 1 and 2, desulfurizing tower smoke processing system further includes that the flue gas that is arranged in outside the desulfurizing tower 1 is cold
Solidifying tower 3 and injection evaporating separation device 4, the bottom of the flue gas condensing tower 3 are equipped with recycling pond 31, and tower wall is equipped with connection cigarette
The top of first gas inlet of feed channel 2, the first gas inlet is equipped with the first spraying mechanism of multilayer 32；The injection evaporation point
From injector 41 is equipped in device 4, the injector 41 is connected to the recycling pond 31, the injection evaporating separation device 4
Bottom be provided with water-accepting tank 42, the water-accepting tank 42 is connected to first spraying mechanism 32, injection evaporation separation dress
The side wall for setting 4 is equipped with air-inlet window 43, and the top of the injection evaporating separation device 4 or the side wall on top are equipped with and are communicated with the atmosphere
Air outlet 44.In the present invention in desulfurizing tower 1 flue gas from exhanst gas outlet be discharged, and through flue 2 from the first gas inlet into
Enter in flue gas condensing tower 3, is sprayed by saturated flue gas of first spraying mechanism 32 to the high temperature, the saturated vapor condensation in flue gas
It is precipitated and enters in recycling pond 31, outlet flue discharge of the flue gas after cooling from 3 top of flue gas condensing tower；It recycles in pond 31
Water enters injector 41 and is sprayed, and air enters in injection evaporating separation device 4 from air-inlet window 43 to carry out with the drop of atomization
Heat exchange, part water vapour are discharged from air outlet 44, enter in water-accepting tank 42 after remaining liq is cooling, then through water circulating pump 45
It is re-delivered in the first spraying mechanism 32, the air-inlet window 43 can enter air, can also enter cold air.Of the invention
Spraying evaporating separation device is that a kind of open type sprays evaporating separation device, makes to recycle in pond by spraying evaporating separation device
Water section evaporation maintains the water balance of former desulfurizing tower while achieving the effect that cooling water-recovering.
Preferably, the injector 41 includes spray tube 411, and the spray tube 411 is connected to the recycling pond 31, institute
Spray tube 411 is stated equipped with multiple injection spray heads 412, the injection spray head 412 is dedicated atomization high velocity projector, the injection spray
First 412 pressure >=1.5kg are sprayed with certain speed using under injection nozzle high-voltage, form vacuum area, increase the gasification of water,
Heat exchange area being increased with atomizer and playing the role of filler, HJP type spray head, gas-liquid two-phase spray head or venturi can be selected
Pipe bilayer spray head etc..
As illustrated in fig. 1, it is preferred that the top of first spraying mechanism 32 is additionally provided with the first demister 33, for removing
The flue dust of larger particles.As illustrated in fig. 1, it is preferred that the invention also includes the absorbent being placed in outside the desulfurizing tower 1 preparation systems
System 6, the absorbent preparation system 6 is connected with the absorbent slurry pond 11, provides absorbent slurry for absorbent slurry pond 11
Liquid.Preferably, it is equipped with slurry agitating device 14 in the absorbent slurry pond 11, for stirring absorbent slurry.Preferably, originally
Invention further includes the desulfurization waste liquor processing unit 7 being placed in outside the desulfurizing tower 1, the desulfurization waste liquor processing unit 7 with it is described
Absorbent slurry pond 11 is connected, for collecting and handling desulfurization waste liquor.As illustrated in fig. 1, it is preferred that the tower wall of the desulfurizing tower 1
On be additionally provided with the air inlet connecting with air blower 8, air inlet is located at below the second gas inlet, convenient for guidance flow of flue gas.
In conclusion the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (9)
1. a kind of desulfurizing tower smoke processing system, which is characterized in that including desulfurizing tower (1), the top of the desulfurizing tower (1) is equipped with
The exhanst gas outlet being connect with flue (2)；It further include being arranged in the external flue gas condensing tower (3) of the desulfurizing tower (1) and spray
It penetrates evaporating separation device (4), the bottom of the flue gas condensing tower (3) is equipped with recycling pond (31), and tower wall is equipped with connection flue gas
The top of first gas inlet of pipeline (2), the first gas inlet is equipped with the first spraying mechanism of multilayer (32)；The injection evaporation
Injector (41) are equipped in separator (4), the injector (41) is connected to the recycling pond (31), the injection evaporation
The bottom of separator (4) is provided with water-accepting tank (42), and the water-accepting tank (42) is connected to first spraying mechanism (32), institute
State injection evaporating separation device (4) side wall be equipped with air-inlet window (43), it is described injection evaporating separation device (4) top or on
The side wall in portion is equipped with the air outlet (44) being communicated with the atmosphere.
2. desulfurizing tower smoke processing system according to claim 1, it is characterised in that: the injector (41) includes spray
It manages (411), the spray tube (411) is connected to the recycling pond (31), and the spray tube (411) is sprayed equipped with multiple injections
Head (412).
3. desulfurizing tower smoke processing system according to claim 1, it is characterised in that: the pressure of injection spray head (412)
Power >=1.5kg.
4. desulfurizing tower smoke processing system according to claim 1, it is characterised in that: first spraying mechanism (32)
Top is additionally provided with the first demister (33).
5. desulfurizing tower smoke processing system according to claim 1, it is characterised in that: the bottom of the desulfurizing tower (1) is set
It is equipped with absorbent slurry pond (11), the second spraying mechanism of multilayer (12) are arranged along flow of flue gas direction in desulfurizing tower (1) top, described
Absorbent slurry pond (11) is connect with the second spraying mechanism (12), and the tower wall of the desulfurizing tower (1) is equipped with connection flue gas inlet pipe
(5) the second gas inlet.
6. desulfurizing tower smoke processing system according to claim 5, it is characterised in that: second spraying mechanism (12)
Top is additionally provided with the second demister (13).
7. desulfurizing tower smoke processing system according to claim 5, it is characterised in that: further include being placed in the desulfurizing tower
(1) external absorbent preparation system (6), the absorbent preparation system (6) are connected with the absorbent slurry pond (11).
8. desulfurizing tower smoke processing system according to claim 5, it is characterised in that: in the absorbent slurry pond (11)
Equipped with slurry agitating device (14).
9. desulfurizing tower smoke processing system according to claim 5, it is characterised in that: further include being placed in the desulfurizing tower
(1) external desulfurization waste liquor processing unit (7), the desulfurization waste liquor processing unit (7) and absorbent slurry pond (11) phase
Even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175870.7A CN109276992A (en) | 2018-10-10 | 2018-10-10 | Desulfurizing tower smoke processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175870.7A CN109276992A (en) | 2018-10-10 | 2018-10-10 | Desulfurizing tower smoke processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109276992A true CN109276992A (en) | 2019-01-29 |
Family
ID=65176234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811175870.7A Pending CN109276992A (en) | 2018-10-10 | 2018-10-10 | Desulfurizing tower smoke processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109276992A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112546801A (en) * | 2020-11-04 | 2021-03-26 | 赵红飞 | Flue gas desulfurization, denitrification and whitening equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56113328A (en) * | 1980-02-14 | 1981-09-07 | Asahi Glass Co Ltd | Improvement in desulfurization process for exhaust gas |
| CN103521047A (en) * | 2013-10-25 | 2014-01-22 | 中冶长天国际工程有限责任公司 | Method for improving sintering desulfurization flue gas emission temperature and system thereof |
| CN108126507A (en) * | 2017-12-26 | 2018-06-08 | 福建龙净环保股份有限公司 | For the water treatment technology system and method for wet desulphurization |
| CN207478303U (en) * | 2017-11-16 | 2018-06-12 | 江苏揽山环境科技股份有限公司 | A kind of system for eliminating the coloured plume of industrial smoke |
-
2018
- 2018-10-10 CN CN201811175870.7A patent/CN109276992A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56113328A (en) * | 1980-02-14 | 1981-09-07 | Asahi Glass Co Ltd | Improvement in desulfurization process for exhaust gas |
| CN103521047A (en) * | 2013-10-25 | 2014-01-22 | 中冶长天国际工程有限责任公司 | Method for improving sintering desulfurization flue gas emission temperature and system thereof |
| CN207478303U (en) * | 2017-11-16 | 2018-06-12 | 江苏揽山环境科技股份有限公司 | A kind of system for eliminating the coloured plume of industrial smoke |
| CN108126507A (en) * | 2017-12-26 | 2018-06-08 | 福建龙净环保股份有限公司 | For the water treatment technology system and method for wet desulphurization |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112546801A (en) * | 2020-11-04 | 2021-03-26 | 赵红飞 | Flue gas desulfurization, denitrification and whitening equipment |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190129 |
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