CN106422724A - Device and method for removing ammonia desulfurization aerosol - Google Patents
Device and method for removing ammonia desulfurization aerosol Download PDFInfo
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- CN106422724A CN106422724A CN201610966033.0A CN201610966033A CN106422724A CN 106422724 A CN106422724 A CN 106422724A CN 201610966033 A CN201610966033 A CN 201610966033A CN 106422724 A CN106422724 A CN 106422724A
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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
- B01D53/50—Sulfur oxides
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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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/106—Peroxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/108—Halogens or halogen compounds
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- 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
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Abstract
The invention provides a device and a method for removing ammonia desulfurization aerosol. The device comprises a desulfurization tower (1), an absorption reaction area (2), an oxidation rinsing area (3) and a water washing purification area (4) are sequentially arranged inside the desulfurization tower (1) from bottom to top, an oxidation rinsing spray layer (22) is arranged in the oxidation rinsing area (3), a water inlet of the oxidation rinsing spray layer (22) is connected with a water outlet of an oxidation rinsing circulating pump (5), a water inlet of the oxidation rinsing circulating pump (5) is respectively connected with water outlets of an oxidation rinsing tank (6) and an oxidizing agent adding pipe (7), and a water inlet of the oxidation rinsing tank (6) is connected with a water outlet of an oxidation rinsing circulating liquid receiving device (8) arranged below the oxidation rinsing spray layer (22). The device and the method for removing the ammonia desulfurization aerosol solve the problems that smoke dust exceeds standards in an ammonia desulfurization process, and an existing dust removal method and equipment are complicated and high in investment and operating cost and the like.
Description
Technical field
The present invention relates to a kind of remove the aerocolloidal device and method of the ammonia process of desulfurization, belong to environmental technology field.
Background technology
At present, ammonia desulfurizing process is generally：Flue gas enters desulphurization system after being pressurized by air-introduced machine, washed first fall
Temperature, then carries out counter current contacting in desulfurizing tower upwards with the desulfurization slurry spraying from top, mass transfer occurs and absorbs instead
Should, the sulfur dioxide in removing flue gas.Flue gas after desulfurization removes after the drop carried secretly in flue gas through washing, mechanical demister,
Direct exhaust chimney through desulfurization top of tower or entrance flue are directly discharged into air by chimney.But this technique is easily produced in sweetening process
Raw substantial amounts of aerosol, i.e. the fine particle dispersion of solid is suspended in the colloidal dispersion system formed in flue gas, leads to desulphurization system
Total dirt severe overweight in exiting flue gas requires it is impossible to meet corresponding environment protection emission.
More and more tighter with the requirement to environmental protection for the country：Up-to-date《The General Office of the State Council is with regard to printing and distributing energy development strategy row
Dynamic plan（2014 the year two thousand twenties）Notice》Middle requirement, Air Pollutant Emission concentration limit under the conditions of benchmark oxygen content 6%,
Flue dust, sulfur dioxide, discharged nitrous oxides concentration are respectively no higher than 10,35,50 milligrams/cubic metre.
Total dirt source of ammonia process of desulfurization neat stress is mainly ammonium sulfate, ammonium sulfite and the ammonium bisulfite that flue gas is carried secretly
Aerosol.Because environmental administration to the detection method of smoke content in flue gas is：Hand sample, dry, weighing records in flue gas
The content of flue dust.This detection method will certainly be by the ammonium sulfate of dissolving, ammonium sulfite and ammonium bisulfite gas in flue gas entrained drip
Colloidal sol counts the content of flue dust in flue gas.So, by reduce neat stress in ammonium sulfate carry secretly and technical process in produce
Ammonium sulfite, ammonium bisulfite aerosol load, it is possible to decrease the total dust content in neat stress.
For guaranteeing that in flue gas after the ammonia process of desulfurization, smoke content is up to standard, traditional processing method is：Using wet type electricity demisting pair
Flue gas after desulfurization carries out deep purifying, make smoke content in flue gas up to standard after discharge, but will also result in simultaneously cost of investment and
The problems such as operating cost increases.To process 1,000,000 Nm3As a example the exhaust gas volumn of/h, if using ammonia process of desulfurization humidification-type electricity demisting
Deep purifying process is carried out to flue gas, makes fume emission up to standard it is contemplated that cost of investment 30,000,000 need to be increased.Meanwhile, run power consumption
Increase 450kWh, so that the operating cost of the ammonia process of desulfurization is increased.
Content of the invention
The technical problem to be solved is, provides a kind of removal aerocolloidal device and method of the ammonia process of desulfurization,
To solve that flue dust in ammonia desulfurizing process is exceeded, existing dust collection method equipment is complicated, investment and operating cost high the problems such as.
The technical scheme that the present invention is adopted by its technical problem of solution：
A kind of removal aerocolloidal device of the ammonia process of desulfurization, including desulfurizing tower, is disposed with inside described desulfurizing tower from down to up
Absorbing reaction area, oxidation water wash zone and water washing cleaning area；It is provided with oxidation washing spraying layer, described oxygen in described oxidation water wash zone
The water inlet changing washing spraying layer is connected with the delivery port of oxidation water washing cycles pump, and the water inlet of described oxidation water washing cycles pump divides
Not be not connected with the delivery port of oxidation water washing tank and oxidant adding tube, the described water inlet aoxidizing water washing tank be arranged at described oxygen
The delivery port changing the oxidation water washing cycles liquid reception device below washing spraying layer is connected, and the water inlet of described oxidation water washing tank is also
It is connected with fresh water pipe, the water outlet of described oxidation water washing cycles pump is additionally provided with drainpipe.
Described drainpipe is connected with the entrance of the absorption cycle liquid in described absorbing reaction area.Described oxidation water washing cycles liquid connects
Receiving apparatus include the flat board of a covering described desulfurizing tower cross section, described flat board is provided with some hollow and bottom with described
What absorbing reaction area was connected raises up, if being provided with dry flue gas on described raised side wall to pass through mouth, described raised top
End is provided with and enters the flange by mouth for the described flue gas for anti-oxidation water washing cycles liquid.
Described flue gas is the downward-sloping tracheae in gas outlet by mouth.
It is provided with for guaranteeing flue gas and oxygen between described oxidation washing spraying layer and oxidation water washing cycles liquid reception device
Change the first packing layer that water washing cycles liquid is fully contacted reaction.
Described water washing cleaning area includes washing spraying layer, the second packing layer and water washing cycles liquid reception dress from top to bottom successively
Put, described washing spraying layer is connected with the water inlet of washing pump, the delivery port of described water washing cycles liquid reception device and water washing tank
Water inlet be connected.
The delivery port of water washing tank is connected with the water inlet of washing pump.
Water washing cycles liquid reception device includes the flat board of a covering described desulfurizing tower cross section, if being provided with described flat board
Do hollow and bottom and raising up that described oxidation water wash zone is connected, if being provided with dry flue gas on described raised side wall
By mouth, described raised top is provided with and enters the flange by mouth for the described flue gas for anti-oxidation water washing cycles liquid.Institute
Stating flue gas by mouth is the downward-sloping tracheae in gas outlet.
Described first packing layer and the second packing layer are all the corrugated board structures being made up of high molecular polymer.Described high score
Sub- polymer includes polypropylene, polyethylene or polyvinyl chloride.Preferably polypropylene.
The fold-line-shaped through hole that some upward and downwards run through is provided with described corrugated board structures.
The material selection polypropylene of oxidation water washing cycles liquid reception device or water washing cycles liquid reception device, fiberglass, conjunction
Golden steel or 316L etc., preferably polypropylene material.
Be provided with except fog-zone above described water washing cleaning area, described except being neat stress floss hole above fog-zone, described desulfurization
The bottom of tower is provided with smoke inlet.
A kind of removal aerocolloidal method of the ammonia process of desulfurization, comprises the following steps：
S01, increases oxidation water wash zone between the absorbing reaction area and water washing cleaning area of desulfurizing tower；
S02, adds water-soluble strong oxidizer in oxidant adding tube, and oxidized dose of adding tube of strong oxidizer is added to oxygen
Change in the water inlet of water washing cycles pump, the oxidation water lotion in simultaneous oxidation water washing tank is also added to aoxidize entering of water washing cycles pump
In the mouth of a river, impeller stirring action through peroxidating water washing cycles pump, so that strong oxidizer is sufficiently mixed with oxidation water lotion, form oxygen
Change water washing cycles liquid, send into oxidation washing spraying layer, oxidation water washing cycles liquid by aoxidize washing spraying layer nozzle atomization after fill
Divide and the flue gas adverse current haptoreaction after desulfurization；
S03, oxidation water washing cycles liquid and flue gas are fully contacted reaction in the first packing layer；
S04, oxidation water washing cycles liquid reception device collects oxidation water washing cycles liquid, sends into oxidation water washing tank by return duct, not
The strong oxidizer of reaction completely is dissolved in the oxidation water lotion in oxidation water washing tank, is circulated profit by aoxidizing water washing cycles pump
With；
S05, controls ammonium sulfate concentrations≤3% of dissolving in oxidation water washing cycles liquid.Make reaching oxidation aerosol and sulfur dioxide
While, flue gas is carried out with water washing cleaning effect, temperature≤50 DEG C of water washing cleaning；The effect of S05 water washing cleaning is：（1）Molten
The aerosol carried secretly in solution flue gas；（2）Replace the high drop of the ammonium sulphate content carried secretly in flue gas, reach simultaneously and flue gas is carried out
The purpose of first washing；
S06, when aoxidizing the ammonium sulfate concentrations ＞ 3% of dissolving in water washing cycles liquid, supplements fresh water in oxidation water washing tank, with
When discharge part oxidation water lotion, reach control oxidation water lotion in ammonium salt concentration purpose.
Described strong oxidizer includes hydrogen peroxide or hypochlorite.Preferably hydrogen peroxide.
The present invention increases by an oxidation water wash zone between the absorbing reaction area and water washing cleaning area of desulfurizing tower, and flue gas is through absorbing
After reaction zone desulfurization absorbs, enter oxidation washing step and carry out oxidation washing.
Add Strong oxdiative reagent soluble in water in oxidation water lotion：Hydrogen peroxide, hypochlorite etc., using hydrogen peroxide or secondary
The strong oxidation of chlorate：（1）By the aerosol carried secretly in flue gas sulfite ammonium and ammonium bisulfite solid tiny particle
It is oxidized to ammonium sulfate, using low temperature（≤50℃）Under the conditions of ammonium sulfate be more soluble in the characteristic of water, remove the aerosol in flue gas；
（2）The oxidizing sulfur dioxide remaining in flue gas is become sulfur trioxide, sulfur trioxide and water react generation sulfuric acid, remove cigarette after desulfurization
The sulfur dioxide of residual in gas.Flue gas after peroxidating washing step washing with water, demisting again, makes flue gas heel row up to standard
Put.
The invention has the beneficial effects as follows：
1. set up oxidation water wash zone between desulfurizing tower absorbing reaction area and water washing cleaning area, add in oxidation water lotion and dissolve in
The strong oxidizer of water, such as hydrogen peroxide（H2O2）, will be small to the aerosol carried secretly in flue gas sulfite ammonium and ammonium bisulfite solid
Particle is oxidized to ammonium sulfate, removes the aerosol in flue gas；The oxidizing sulfur dioxide remaining in flue gas is become sulfur trioxide simultaneously,
Sulfur trioxide and water react generation sulfuric acid, remove the sulfur dioxide of residual in flue gas after desulfurization.After peroxidating washing step
Flue gas washing with water, demisting again, discharges after making flue gas up to standard；
2. control ammonium sulfate concentrations≤3% in oxidation water washing cycles liquid, reach the purpose that flue gas is carried out with first water washing cleaning；
3., in oxidation water wash zone bottom setting oxidation water washing cycles liquid reception device, collect oxidation water washing cycles liquid to aoxidizing washing
Tank, recycles；
4. the polypropylene filler of H=600mm is set above oxidation water washing cycles liquid reception device, to increase flue gas in oxidation washing
Qu Zhongyu aoxidizes the contact effect of water washing cycles liquid；
5. the present invention removes degassing sol and residual sulphur by aoxidizing washing, and equipment is simple, low cost, and processing step is simple, can grasp
The property made is strong, solves that flue dust in ammonia desulfurizing process is exceeded, existing dust collection method equipment is complicated, investment and operating cost height etc. are asked
Topic.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of oxidation water washing cycles liquid reception device or water washing cycles liquid reception device in the present invention.
In figure：1 is desulfurizing tower, 2 is absorbing reaction area, 3 is oxidation water wash zone, 4 is water washing cleaning area, 5 is oxidation washing
Circulating pump, 6 be oxidation water washing tank, 7 be oxidant adding tube, 8 be oxidation water washing cycles liquid reception device, 9 be washing pump, 10 be
Water washing tank, 11 be flat board, 12 be raised, 13 be flue gas pass through mouth, 14 be flange, 15 be the first packing layer, 16 be except fog-zone, 17
For neat stress floss hole, 18 be smoke inlet, 19 be washing spraying layer, 20 be the second packing layer, 21 be water washing cycles liquid reception
Device, 22 be oxidation washing spraying layer.
Specific embodiment
With specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.
One exhaust gas volumn is 500,000 Nm3/ h, after absorbing reaction, flue gas directly carries out water washing cleaning, discharges after demisting, control
Flue fog drip content processed is 60 mg/Nm3.According to the detection method to smoke content in flue gas for the environmental administration：Hand sample,
Dry, weigh.Record smoke content data in discharge flue gas and refer to table 1（Non- oxygenation water washing device）.
Embodiment 1：
As shown in Fig. 1 ~ Fig. 2, a kind of remove the aerocolloidal device of the ammonia process of desulfurization, including desulfurizing tower 1, inside described desulfurizing tower 1 by
Under to being above disposed with absorbing reaction area 2, oxidation water wash zone 3 and water washing cleaning area 4；It is provided with described oxidation water wash zone 3
Oxidation washing spraying layer 22, the water inlet of described oxidation washing spraying layer 22 is connected with the delivery port of oxidation water washing cycles pump 5, institute
The water inlet stating oxidation water washing cycles pump 5 is connected with the delivery port of oxidation water washing tank 6 and oxidant adding tube 7 respectively, described oxygen
Change the water inlet of water washing tank 6 and the oxidation water washing cycles liquid reception device 8 being arranged at described oxidation washing spraying layer 22 lower section
Delivery port is connected, and the water inlet of described oxidation water washing tank 6 is also connected with fresh water pipe, the water outlet of described oxidation water washing cycles pump 5
It is additionally provided with drainpipe at mouthful.
Described oxidation water washing cycles liquid reception device 8 includes the flat board 11 of the described desulfurizing tower of a covering 1 cross section, described flat
Be provided with plate 11 that some hollow and bottom is connected with described absorbing reaction area 2 raises up 12, described raised 12
If being provided with dry flue gas on the wall of side to pass through mouth 13, described raised 12 top is provided with and enters for anti-oxidation water washing cycles liquid
Described flue gas passes through the flange 14 of mouth 13.
Described flue gas is the downward-sloping tracheae in gas outlet by mouth 13.
Described oxidation washing spraying layer 22 and oxidation water washing cycles liquid reception device 8 between be provided with for guarantee flue gas with
Oxidation water washing cycles liquid is fully contacted the first packing layer 15 of reaction.
Described water washing cleaning area 4 includes washing spraying layer 19, the second packing layer 20 and water washing cycles liquid from top to bottom successively
Reception device 21, described washing spraying layer 19 is connected with the water inlet of washing pump 9, the going out of described water washing cycles liquid reception device 21
The mouth of a river is connected with the water inlet of water washing tank 10.
Described first packing layer 15 and the second packing layer 20 are all the corrugated board structures being made up of high molecular polymer.
Described high molecular polymer is polypropylene.
Described water washing cleaning area 4 is provided with except fog-zone 16 above, and described is neat stress floss hole 17 except fog-zone 16 is above, institute
The bottom stating desulfurizing tower 1 is provided with smoke inlet 18.
A kind of removal aerocolloidal method of the ammonia process of desulfurization, comprises the following steps：
One exhaust gas volumn is 500,000 Nm3/ h, after absorbing reaction area 2 absorbing reaction, absorbs in desulfurizing tower 1 and sets up oxygen above spray
Change water wash zone 3, in oxidation rinsing solution, add 30% hydrogen peroxide（H2O2）As strong oxidizer, aoxidizing water washing cycles liquid measure is
500m3/ h, the addition of 30% hydrogen peroxide is 150L/h, and in oxidation water washing cycles liquid, ammonium sulfate concentrations are 3%.In oxidation water wash zone
Polypropylene first packing layers 15 of 3 setting H=600mm, with increase flue gas in oxidation water wash zone 3 with oxidation water washing cycles liquid
Contact effect.
Flue gas discharges behind peroxidating water wash zone 3, then after washing with water, demisting.Flue fog drip content is controlled to be 60
mg/Nm3.According to the detection method to smoke content in flue gas for the environmental administration：Hand sample, dry, weigh.Record discharge flue gas
Middle smoke content data refers to table 1.
Embodiment 2：
As shown in Fig. 1 ~ Fig. 2, the present embodiment is 75L/h with the addition differing only in 30% hydrogen peroxide of embodiment 1, records
In discharge flue gas, smoke content data refers to table 1.
Embodiment 3：
As shown in Fig. 1 ~ Fig. 2, the present embodiment is differed only in embodiment 1, and in oxidation water washing cycles liquid, ammonium sulfate concentrations are
1.5%, record smoke content data in discharge flue gas and refer to table 1.
Embodiment 4：
As shown in Fig. 1 ~ Fig. 2, the present embodiment is differed only in embodiment 1, and the addition of 30% hydrogen peroxide is 75L/h, oxidation
In water washing cycles liquid, ammonium sulfate concentrations are 1.5%, record smoke content data in discharge flue gas and refer to table 1.
Embodiment 5：
As shown in Fig. 1 ~ Fig. 2, the present embodiment is differed only in embodiment 1, and high molecular polymer is polyethylene, strong oxidizer
For sodium hypochlorite.The addition of 30% liquor natrii hypochloritis is 150L/h, and in oxidation water washing cycles liquid, ammonium sulfate concentrations are 3%.Survey
Smoke content data in flue gas must be discharged and refer to table 1.
Table 1 smoke content tables of data
| Non- oxygenation water washing device | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Smoke content（mg/Nm3） | 23.0 | 7.5 | 9.6 | 6.2 | 7.8 | 8.1 |
From table 1, the present invention passes through the smoke content that oxidation washing can significantly reduce in flue gas, solves ammonia desulfurizing process
Middle flue dust is exceeded, existing dust collection method equipment is complicated, investment and operating cost high the problems such as.
The above be only the preferred embodiment of the present invention it should be pointed out that：Ordinary skill people for the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of remove the aerocolloidal device of the ammonia process of desulfurization it is characterised in that：Including desulfurizing tower（1）, described desulfurizing tower（1）Internal
It is disposed with absorbing reaction area from down to up（2）, oxidation water wash zone（3）With water washing cleaning area（4）；Described oxidation water wash zone
（3）Inside it is provided with oxidation washing spraying layer（22）, described oxidation washing spraying layer（22）Water inlet with oxidation water washing cycles pump
（5）Delivery port be connected, described oxidation water washing cycles pump（5）Water inlet respectively with oxidation water washing tank（6）Add with oxidant
Pipe（7）Delivery port be connected, described oxidation water washing tank（6）Water inlet be arranged at described oxidation washing spraying layer（22）Lower section
Oxidation water washing cycles liquid reception device（8）Delivery port be connected, described oxidation water washing tank（6）Water inlet also with fresh water pipe
It is connected, described oxidation water washing cycles pump（5）Water outlet be additionally provided with drainpipe.
2. according to claim 1 a kind of remove the aerocolloidal device of the ammonia process of desulfurization it is characterised in that：Described oxidation washing follows
Ring liquid reception device（8）Including a described desulfurizing tower of covering（1）The flat board of cross section（11）, described flat board（11）If on be provided with
Dry hollow and bottom and described absorbing reaction area（2）Be connected raises up（12）, described projection（12）Side wall on set
If being equipped with dry flue gas to pass through mouth（13）, described projection（12）Top be provided with enter for anti-oxidation water washing cycles liquid described
Flue gas passes through mouth（13）Flange（14）.
3. according to claim 2 a kind of remove the aerocolloidal device of the ammonia process of desulfurization it is characterised in that：Described flue gas passes through mouth
（13）For the downward-sloping tracheae in gas outlet.
4. according to claim 1 a kind of remove the aerocolloidal device of the ammonia process of desulfurization it is characterised in that：Described oxidation water washing spray
Drench layer（22）With oxidation water washing cycles liquid reception device（8）Between be provided with for guarantee flue gas with oxidation water washing cycles liquid abundant
Catalytic first packing layer（15）.
5. according to claim 4 a kind of remove the aerocolloidal device of the ammonia process of desulfurization it is characterised in that：Described water washing cleaning area
（4）Include successively from top to bottom washing spraying layer（19）, the second packing layer（20）With water washing cycles liquid reception device（21）, described
Washing spraying layer（19）With washing pump（9）Water inlet be connected, described water washing cycles liquid reception device（21）Delivery port and water
Cleaning of evaporator（10）Water inlet be connected.
6. according to claim 5 a kind of remove the aerocolloidal device of the ammonia process of desulfurization it is characterised in that：Described first packing layer
（15）With the second packing layer（20）It is all the corrugated board structures being made up of high molecular polymer.
7. according to claim 6 a kind of remove the aerocolloidal device of the ammonia process of desulfurization it is characterised in that：Described high molecular polymerization
Thing includes polypropylene, polyethylene or polyvinyl chloride.
8. according to claim 1 a kind of remove the aerocolloidal device of the ammonia process of desulfurization it is characterised in that：Described water washing cleaning area
（4）It is provided with above except fog-zone（16）, described except fog-zone（16）It is neat stress floss hole above（17）, described desulfurizing tower（1）'s
Bottom is provided with smoke inlet（18）.
9. a kind of according to any one of claim 1 ~ 8 remove the aerocolloidal method of the ammonia process of desulfurization it is characterised in that：Including
Following steps：
S01, in desulfurizing tower（1）Absorbing reaction area（2）With water washing cleaning area（4）Between increase oxidation water wash zone（3）；
S02, in oxidant adding tube（7）The water-soluble strong oxidizer of middle interpolation, oxidized dose of adding tube of strong oxidizer（7）Plus
Enter to oxidation water washing cycles pump（5）Water inlet in, simultaneous oxidation water washing tank（6）In oxidation water lotion be also added to aoxidize water
Wash circulating pump（5）Water inlet in, through peroxidating water washing cycles pump（5）Impeller stirring action, make strong oxidizer with oxidation water
Washing lotion is sufficiently mixed, and forms oxidation water washing cycles liquid, sends into oxidation washing spraying layer（22）, oxidation water washing cycles liquid is by aoxidizing water
Washing and spraying layer（22）Nozzle atomization after flue gas adverse current haptoreaction fully and after desulfurization；
S03, oxidation water washing cycles liquid and flue gas are in the first packing layer（15）It is fully contacted reaction；
S04, aoxidizes water washing cycles liquid reception device（8）Collect oxidation water washing cycles liquid, oxidation water washing tank is sent into by return duct
（6）, not the strong oxidizer of reaction completely be dissolved in oxidation water washing tank（6）In oxidation water lotion in, by aoxidize water washing cycles pump
（5）It is circulated utilization；
S05, controls ammonium sulfate concentrations≤3% of dissolving in oxidation water washing cycles liquid；
Make, while reaching oxidation aerosol and sulfur dioxide, flue gas to be carried out with water washing cleaning effect, the temperature of water washing cleaning
≤50℃；
S06, when aoxidizing the ammonium sulfate concentrations ＞ 3% of dissolving in water washing cycles liquid, to oxidation water washing tank（6）Middle supplementary fresh water,
The water lotion of discharge part oxidation simultaneously, reaches the purpose controlling ammonium salt concentration in oxidation water lotion.
10. according to claim 9 a kind of remove the aerocolloidal method of the ammonia process of desulfurization it is characterised in that：Described strong oxidizer
Including hydrogen peroxide or hypochlorite.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610966033.0A CN106422724A (en) | 2016-10-28 | 2016-10-28 | Device and method for removing ammonia desulfurization aerosol |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610966033.0A CN106422724A (en) | 2016-10-28 | 2016-10-28 | Device and method for removing ammonia desulfurization aerosol |
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| CN112221337A (en) * | 2020-10-13 | 2021-01-15 | 沈阳铝镁设计研究院有限公司 | Method and device for solving ammonia desulphurization aerosol |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107126795A (en) * | 2017-06-21 | 2017-09-05 | 江苏科行环保科技有限公司 | A kind of gas washing cap and ventilative catch tray of giving a dinner of welcome |
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