CN109647172A - A kind of flue gas desulfurization, except haze and the white integrated tower that disappears - Google Patents
A kind of flue gas desulfurization, except haze and the white integrated tower that disappears Download PDFInfo
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- CN109647172A CN109647172A CN201811597513.XA CN201811597513A CN109647172A CN 109647172 A CN109647172 A CN 109647172A CN 201811597513 A CN201811597513 A CN 201811597513A CN 109647172 A CN109647172 A CN 109647172A
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- flue gas
- desulfurization
- tower
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- 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
Abstract
The invention discloses a kind of flue gas desulfurization, except haze and the white integrated tower that disappears, including tower casing and internal component, tower casing is from bottom to top, it is divided into slurry area, secondary air inlet area, scrubbing section, mist eliminating zone, heat transfer zone and flue gas emission area, flue gas in a tower can successively by desulfurization, give a dinner of welcome and remove moisture solution, reach desulfurization, except haze and " disappearing white " purpose, completes clean emission.
Description
Technical field
The present invention relates to flue gas purifying equipment technical field more particularly to a kind of flue gas desulfurization, except haze and the white integrated tower that disappears.
Background technique
The method of existing flue gas desulfurization mainly has wet desulphurization and dry desulfurization two major classes, wherein with stone in wet desulphurization
Based on grey lime-gypsum method, the law technology is mature, is used by current most of flue gas desulfurization technique.The method desulfuration efficiency
Though it is high, because consuming large quantity of moisture in sweetening process, serious fog can be formed in flue gas emission end, i.e., it is so-called " white
Cigarette " causes visual pollution.To solve this problem, it is installed additional in prior art processes by GGH heater or MGGH heater, it will be last
The flue gas at end is discharged, though the measure can improve visual effect, the installation of the equipment such as GGH improves cost, can also
Complicate process layout.In addition, existing wet desulphurization can not also solve the problems, such as escaping for desulfurizing agent and desulfurization product, and pass through
Facts proved that escaping for the generation of current haze and desulfurizing agent and desulfurization product is directly related.
Summary of the invention
In order to solve the above technical problems, the present invention provides the novel desulfurization of one kind, except haze and the white integrated tower that disappears, this sets
Standby " white cigarette " phenomenon that can provide original wet desulfurizing process and eliminate haze and the discharge of flue gas end.The present invention
It is achieved through the following technical solutions:
A kind of flue gas desulfurization, except haze and the white integrated tower that disappears, including shell and internal component, which is characterized in that housing cavity is under
On and, it is divided into slurry area, secondary air inlet area, scrubbing section, mist eliminating zone, heat transfer zone and flue gas emission area；Slurry area with it is secondary
Air inlet area connection, tower casing open up smoke secondary import in secondary air inlet zone position；Scrubbing section is separated by partition a with secondary air inlet
It opens, the desulfurization cylinder of certain altitude is installed in scrubbing section on partition a, devulcanizer is set in desulfurization cylinder, desulfurization cylinder is connected to secondary air inlet
Area and scrubbing section；Washer is installed on scrubbing section top, and tower casing is provided with water outlet in the bottom position of scrubbing section；Mist eliminating zone and washing
Area communicates, and demister is installed in mist eliminating zone；Mist eliminating zone and heat transfer zone is isolated in partition b, and heat transfer zone and flue gas emission is isolated in partition c
Area sets heat exchanger tube in heat transfer zone, and heat exchanger tube both ends are separately fixed on partition b and partition c, heat exchange tube cavity connection mist eliminating zone and
Flue gas emission area；Tower casing is opened up on heat transfer zone into first flue gas import and first flue gas outlet.
Preferably, water stopping cap wherein is additionally provided with above desulfurization cylinder.
Preferably, wherein water stopping cap above, below or top and bottom are convex.
Related terms meaning are as follows:
1, wet desulphurization: referring to that the flue gas for needing desulfurization is contacted with doctor solution, reaches desulfurization mesh by mass transfer between gas-liquid, reaction
's.Current wet desulphurization it is more mature be limestone/gypsum method；Desulfurizing agent in limestone/gypsum method is lime stone, lime stone
Slurry, slurry and smoke contacts are mixed into water after crushed, the sulphur in flue gas are changed into gypsum, to complete desulfurization.
2, GGH heater: a kind of gas-gas heat exchanger, can by the heat transfer of former flue gas to the flue gas after desulfurization, it
Effect is to be heated the neat stress after desulfurization using former flue gas, reaches exhaust gas temperature on dew point, is mitigated to flue
With the corrosion of chimney, the diffusance of pollutant is improved；It is lowered into the flue-gas temperature on absorption tower simultaneously, reduces in tower to corrosion-resistant
Process specifications.
3, MGGH heat exchanger: and a kind of gas-gas heat exchanger, unlike GGH, the thermal conductor of GGH is the heat transfer of GGH
Element completes the transmitting of heat by thermal conductor in different flues and smoke contacts；And the thermal conductor of MGGH is heat transfer medium
(such as water) completes the transmitting of heat by the flowing of thermal conductor.
4, devulcanizer: for the main component for removing sulfureous in flue gas.Desulfurizing tower mature at present has that there are two main classes, Yi Zhongwei
Spray column, desulfurization slurry are sprayed downwards with misty from nozzle, are reacted with the smoke contacts of reverse flow, completion desulfurization, in the tower
Nozzle or Nozzle combination are called spray thrower；Another tower is plate column, and flue gas and the desulfurization slurry haptoreaction on tower tray are completed
Desulfurization, the tower tray in the tower are called devulcanizer；The devulcanizer of other types desulfurizing tower is similar.
5, washer: the component for being rinsed with water flue gas can complete the function that water is mixed with flue gas, to reach washing
The purpose of flue gas.Common mode has: fountain, and shower nozzles water spray is absorbed with smoke contacts, and spray thrower is called at this time
Washer；Tower disc type, flue gas contact absorption on tower tray with water, and tower tray is called washer at this time；Other kinds of washer
It is similar.
The beneficial effects of the present invention are:
1, compact-sized, in a tower, it will be able to complete the desulfurization of flue gas, purify (except the desulfurizing agent of deentrainment and desulfurization produce
Object other dust) and eliminate all process steps of " white cigarette "；
2, GGH heater is saved, the flue gas purifying technique after eliminating the desulfurization being additionally arranged, the flue gas after tower is not necessarily to cigarette out
Chimney reduces costs, can direct outlet.
3, deep purifying flue gas makes the complete clean emission of flue gas.
Figure of description
Fig. 1 is flue gas desulfurization, except haze and the structure chart for the white integrated tower that disappears；
Fig. 2 is flue gas desulfurization, except haze and the flow chart for the white integrated tower that disappears.
Fig. 3 is the structure chart of water stopping cap；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the tray structure figure in desulfurization cylinder；
Fig. 6 is the top view of Fig. 5.
Specific embodiment
Embodiment one
In conjunction with Fig. 1, Fig. 2, Fig. 5 and Fig. 6, the present invention is described as follows:
A kind of flue gas desulfurization, except haze and the white integrated tower that disappears, including tower casing 1 and internal component, 1 inner cavity of tower casing from bottom to top, successively
It is divided into slurry area 2, secondary air inlet area 3, scrubbing section 4, mist eliminating zone 5, heat transfer zone 6 and flue gas emission area 7；Slurry area 2 is used as storing up
Deposit and collect the region of desulfurization slurry, also referred to as slurry pool；Secondary air inlet area 3 is that the flue gas after exchanging heat is again introduced into integrated tower
Region；Scrubbing section 4 is the region that purification and washing is carried out to the flue gas after desulfurization, arranges multiple desulfurization in 4 range of scrubbing section
Cylinder 8, sets devulcanizer in desulfurization cylinder 8, carries out desulfurization using plate column mode in the present embodiment, therefore is equipped with tower in desulfurization cylinder 8
Disk 9, flue gas and the desulfurization slurry haptoreaction on tower tray 9, complete desulfurization, and desulfurization cylinder 8 is connected to secondary air inlet area 3 and scrubbing section 4；
The mode of washing is washing, and the desulfurizing agent and desulfurization product carried secretly in flue gas are removed by washing, can also further be washed
Other dust in flue gas wash flue gas in such a way that nozzle makes water fogging in the present embodiment；Mist eliminating zone 5 is equipped with demister
10, for the region for reducing flue gas moisture content；Heat transfer zone 6 is that former flue gas exchanges heat to the region of the flue gas after desulfurization,
The region is substantially a gas-gas heat exchanger；Flue gas emission area 7 is the flue gas that collects that treated and the region for excluding tower casing 1, works as cigarette
Gas is it is not necessary that when collecting, flue gas emptying area is that smoke secondary exports 20 corresponding spaces.
The position and connection relationship of each area of integrated tower and each component are: slurry area 2, secondary air inlet area 3 communicate, and tower casing 1 exists
3 position of secondary air inlet area opens up smoke secondary import 11；Secondary air inlet area 3 and scrubbing section 4 are separated by partition a12, and desulfurization cylinder 8 is pacified
On partition a12, desulfurization cylinder 8 is higher by partition a12 certain altitude, and 8 cavity of desulfurization cylinder connects secondary air inlet area 3 and scrubbing section 4,
Desulfurization tower tray 9 is set in desulfurization cylinder 8, and liquid distributor 13 is arranged in 9 top of tower tray, and liquid distributor 13 is connect with external desulfurization slurry inlet pipe；
It is higher by desulfurization cylinder 8,4 top of scrubbing section installation washer 14, washer 14 can be customized from market, using sprinkler head
Ask for the water mist of ejection it is uniform；Tower casing 1 is provided with water outlet 22 in the bottom position of scrubbing section 4；Mist eliminating zone 5 is communicated with scrubbing section 4,
Demister 10 is installed, demister 10 is general desulfurizer mist eliminator 10, is directly bought from market in mist eliminating zone 5；Partition b15 with
Mist eliminating zone 5 and heat transfer zone 6 is isolated in the tube sheet of the similar heat exchanger of partition c16, partition b15, and heat transfer zone 6 and flue gas is isolated in partition c16
Discharge region 7 sets heat exchanger tube 17 in heat transfer zone 6, and 17 both ends of heat exchanger tube are separately fixed on partition b15 and partition c16, heat exchanger tube 17
Inner cavity is connected to mist eliminating zone 5 and flue gas emission area 7；Tower casing 1 opens up on heat transfer zone 6 to be gone out into first flue gas import 18 and first flue gas
Mouth 19；Flue gas emission area 7 is connect by smoke secondary outlet 20 with the external world.
Flue gas desulfurization, except the working principle of haze and the white integrated tower that disappears are as follows: from boiler come out former flue gas after electrostatic precipitation,
The heat transfer zone 6 for entering integrated tower by first flue gas import 18 first, is distributed with heat exchanger tube 17 in heat transfer zone 6, in heat exchanger tube 17
Circulation has purified flue gas, and former flue-gas temperature is higher, and purified flue-gas temperature is low, is handed over by 17 heat of heat exchanger tube
It changes；Former flue gas goes out integrated tower by first flue gas outlet 19 later, secondary after external pipe, then from the entrance of smoke secondary import 11
Air inlet area 3, flue gas rises in secondary air inlet area 3, into desulfurization cylinder 8, then passes through 9 gap of tower tray, with taking off on tower tray 9
The mixing of sulphur slurries, at the same time, desulfurization slurry, to liquid distributor 13, is transported on tower tray 9, in tower tray by inlet pipe by liquid distributor 13
Flue gas meets with desulfurization slurry on 9, and the sulphur in flue gas is absorbed, reacts；Flue gas after desulfurization continues to rise along desulfurization cylinder 8, into
Enter scrubbing section 4, in scrubbing section 4, washer 14 sprays downwards water mist, and flue gas meets with water mist, and water is by the desulfurizing agent in flue gas
It is washed away with desulfurization product and other dust, flue gas becomes purifying smoke at this time；Purifying smoke continues to rise, into mist eliminating zone 5
In the demister 10 of interior setting, demister 10 removes the most of water mist carried secretly in flue gas；Purifying smoke continues to rise, from every
Enter 17 inner cavity of heat exchanger tube for fixed 17 mouthfuls of heat exchanger tube on plate b15, purifying smoke absorbs former flue gas by 17 wall of heat exchanger tube and transmits
Heat, temperature increase, moisture degree of unsaturation increase；The heat exchanger tube 17 that final purification and the flue gas heated are fixed from partition c16
Another port enter flue gas emission area 7, integrated tower is discharged.
While flue gas flows through integrated tower, there is also two liquid operating systems:
One (see attached drawing 2), the desulfurization slurry prepared (limestone slurry is used in the present embodiment) are first delivered to slurry area 2,
It under the action of pressure pump, is promoted through tower extension tube attached, then enters integrated tower through desulfurization slurry inlet pipe, into desulfurization cylinder 8, until cloth
Desulfurization slurry is arranged on tower tray 9 by liquid distributor 13, is mixed on tower tray 9 with flue gas by liquid device 13, then along 9 gap of tower tray,
Or lower circulation road is flowed downward out along desulfurization cylinder 8, into secondary air inlet area 3, is eventually fallen into slurry pool, is become gypsum after aoxidizing
Liquid, gypsum liquid are drawn from slurry bottom of pond portion.
Secondly (see attached drawing 2), washing water is through pumping in the washer 14 being delivered in scrubbing section 4, with misty shape from nozzle
Formula sprays, and meets with the desulfurization fume of rising, water mist is the desulfurizing agent, desulfurization product and other dust washings carried secretly in flue gas
Get off, fall on partition a12 and form washing water, washing water is flowed out through water outlet 22, into catch basin, it is purified after again by pumping
Enter washer 14, completes circulation washing.
Embodiment two
In conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the present invention is done as described below:
On the basis of example 1, in scrubbing section 4, the top of desulfurization cylinder 8, masking device is added, water stopping cap 21 is called, used
It can not be entered in desulfurization cylinder 8 with the water blocked under washer 14 sprays, to fall into final slurry pool.Water stopping cap 21 is arranged
In the upper position of desulfurization cylinder 8, there are gaps, so that flue gas enters scrubbing section 4 out of desulfurization cylinder 8.Using double in the present embodiment
Spheric water stopping cap 21.
Claims (3)
1. a kind of flue gas desulfurization, except haze and the white integrated tower that disappears, including shell and internal component, which is characterized in that housing cavity by
On down, it is divided into slurry area, secondary air inlet area, scrubbing section, mist eliminating zone, heat transfer zone and flue gas emission area；Slurry area and two
Secondary air inlet area connection, tower casing open up smoke secondary import in secondary air inlet zone position；Scrubbing section is separated by partition a with secondary air inlet
It opens, the desulfurization cylinder of certain altitude is installed in scrubbing section on partition a, devulcanizer is set in desulfurization cylinder, desulfurization cylinder is connected to secondary air inlet
Area and scrubbing section；Washer is installed on scrubbing section top, and tower casing is provided with water outlet in the bottom position of scrubbing section；Mist eliminating zone and washing
Area communicates, and demister is installed in mist eliminating zone；Mist eliminating zone and heat transfer zone is isolated in partition b, and heat transfer zone and flue gas emission is isolated in partition c
Area sets heat exchanger tube in heat transfer zone, and heat exchanger tube both ends are separately fixed on partition b and partition c, heat exchange tube cavity connection mist eliminating zone and
Flue gas emission area；Tower casing is opened up on heat transfer zone into first flue gas import and first flue gas outlet.
2. flue gas desulfurization according to claim 1, except haze and the white integrated tower that disappears, is wherein additionally provided with water blocking above desulfurization cylinder
Cap.
3. flue gas desulfurization according to claim 2, except haze and the white integrated tower that disappears, wherein water stopping cap above, below or on
It is below convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597513.XA CN109647172A (en) | 2018-12-26 | 2018-12-26 | A kind of flue gas desulfurization, except haze and the white integrated tower that disappears |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811597513.XA CN109647172A (en) | 2018-12-26 | 2018-12-26 | A kind of flue gas desulfurization, except haze and the white integrated tower that disappears |
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| CN109647172A true CN109647172A (en) | 2019-04-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090520A (en) * | 2019-05-13 | 2019-08-06 | 安徽工业大学 | A kind of flue gas end based on phase transformation is inversely dehydrated refined dedusting device |
-
2018
- 2018-12-26 CN CN201811597513.XA patent/CN109647172A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090520A (en) * | 2019-05-13 | 2019-08-06 | 安徽工业大学 | A kind of flue gas end based on phase transformation is inversely dehydrated refined dedusting device |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20190626 Address after: Room 509, 5th floor, 4th building, 5th Qianqian Road, Changping District Science Park, Beijing 102200 Applicant after: Beijing Ivyquen Energy Saving Technologies Co., Ltd. Address before: 250014 88 east culture Road, Lixia District, Ji'nan, Shandong Applicant before: Shangdong Normal University |
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