CN205598941U - Flue -gas desulfurizing device by ammonia process - Google Patents
Flue -gas desulfurizing device by ammonia process Download PDFInfo
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- CN205598941U CN205598941U CN201620311403.2U CN201620311403U CN205598941U CN 205598941 U CN205598941 U CN 205598941U CN 201620311403 U CN201620311403 U CN 201620311403U CN 205598941 U CN205598941 U CN 205598941U
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Abstract
The utility model provides a flue -gas desulfurizing device by ammonia process, flue -gas desulfurizing device by ammonia process from bottom to up includes preprocessing device, desulfurizing tower device, electric defogging device, flue gas discharging equipment in proper order, its characterized in that installs one set of washing tower tray tower between export of desulfurizing tower device and electric defogging device, washing tower tray tower from bottom to up include the washing tower tray in proper order, wash packing layer, water spraying layer, the equipartition sets up the whirl air cap in the washing tower tray, the whirl air cap includes whirl component and whirl board, the whirl component is located whirl board lower extreme, still is equipped with the tray below the whirl air cap. Particulate matter effluent concentration 45.7mgNm3 drops transformation back 9.8mgNm3 to after reforming transform the former desulphurization unit defogging in back, satisfies the requirement of minimum discharge.
Description
Technical field
This utility model belongs to chemical field, is specifically related to a kind of ammonia type flue gas desulfurizing apparatus.
Background technology
Ammonia-process desulfurization technique meets the environmental protection desulfurization technology that recycling economy requires, increasingly by the weight of industry as a kind of
Depending on.The side-product of ammonia type flue gas desulfurizing is ammonium sulfate, is the fertilizer of nitrogenous sulfur-bearing, has the wide market demand.Increasingly
Many chemical industry self-contained thermoelectric plants use ammonia-process desulfurization technique to process boiler smoke, particularly produce the factory of synthesis ammonia, its
Production process has the generation of deposed ammonia, using deposed ammonia as desulfurizing agent, by-product thiamine fertilizer, it is achieved the treatment of wastes with processes of wastes against one another, become give up into
Precious.
Along with improving constantly of environmental requirement, need the lifting considering follow-up environmental protection standard that device is brought existing desulfurizer
New requirement and allowance guarantee, step up to requiring that new-built unit Air Pollutant Emission is in principle close to or up combustion gas
(i.e. under the conditions of benchmark oxygen content 6%, flue dust, sulfur dioxide, discharged nitrous oxides concentration are the most or not wheel unit emission limit
Higher than 10,35,50mg/Nm3)。
Due to the volatility of desulfurization absorbent ammonia, ammonia process of desulfurization tail gas can form ammonia aerosols, and is difficult to be captured, these gas
The grain class distribution scope of colloidal sol is about 0.01～1 μm.And wet-esp (mist) device has its adaptability to particle size scope,
Particle more than 1 micron is had the highest removal efficiency, and particle diameter is the thinnest, and removal efficiency is the lowest, and i.e. different-grain diameter particle is quiet
Electric collecting theory has different classification removal efficiency.
CN 201454393 U discloses a kind of novel ammonia type flue gas desulfurizing apparatus, and purifying smoke is discharged from desulfurizing tower top, bag
Include three independent absorbing liquid blood circulation, lower floor and middle level pipeloop are provided with raw material ammonia and add entrance so that desulfurizing tower
The most all the time there is the deamination section of ammonia in recovery.Gas approach flow area is rectangle, the long edge lengths of rectangle and tower body diameter proportion
For 0.55-0.95, gas approach area is the 0.20-0.40 of tower body area；Exhanst gas outlet flow area is rectangle or circle, and
Exhanst gas outlet area is the 0.15-0.40 of tower body area.This technology also discloses and is provided with shower, packing layer in desulfurizing tower
With air bubbling pipe, although technology can steady air flow to a certain extent, but the effect of fume treatment is the most not ideal enough.
CN103920371A discloses a kind of absorption tower, including absorption plant, it is characterised in that: join at the top of absorption plant
Connect cooling humidification device, at the top attachment electric demister of cooling humidification device；Described absorption plant and cooling humidification device
Between the first connecting port is set, between described cooling humidification device and electric demister, the second connecting port is set；Described first,
Second connecting port uses flange connection or welding manner；Described absorption plant include the most successively liquid distributing device,
Desulfurization absorber portion and liquid storage section, described liquid distributing device is provided with circulating absorption solution import, is provided with circulating absorption solution and goes out at liquid storage section
Mouthful, the bottom of described desulfurization absorber portion is provided with gas approach；Described absorption plant also includes foam-removing layer and packing layer；Described cold
But humidifying device includes gas-liquid demarcation strip, lower gas-liquid demarcation strip, closes on and arranges cooling liquid outlet at gas-liquid demarcation strip, faces
At nearly lower gas-liquid demarcation strip, cooling liquid inlet is set, many pipelines are set between upper and lower gas-liquid demarcation strip, described pipeline
Top arranges humidifying liquid import, external humidifying liquid；Described electric demister top arranges exhanst gas outlet.Although this technology is wrapped
Include electric demister and packing layer, but packing layer has been arranged in absorption tower, and the air-flow of flue gas has not been adjusted.
Utility model content
For solving the problems referred to above, this utility model newly-increased water washing device on the basis of original desulphurization system and packing layer, improve
Desulphurizing ability, reduces aerocolloidal generation, strengthens trickle aerocolloidal trapping and washing, increases particle diameter, promotes wet type electricity
Cleaner unit is to aerocolloidal removal efficiency.In the case of not changing electrostatic precipitator equipment, by the pretreatment measure to flue gas,
Improve electrostatic precipitator disposal ability.Ensure that the particulate matter index of desulfurization outlet drops to minimum discharge standard-required.
This utility model provides a kind of ammonia type flue gas desulfurizing apparatus, and described ammonia type flue gas desulfurizing apparatus includes pre-the most successively
Processing means, desulfurizer device, electric demister, smoke discharging device, it is characterised in that desulfurizer device outlet and
Installing a set of washing tower tray tower between electric demister, washing tower tray tower includes washing tower tray, washing filler the most successively
Layer, washing spraying layer, the uniform eddy flow gas cap that arranges in described washing tower tray, described eddy flow gas cap includes eddy flow component and eddy flow
Plate, described eddy flow component is positioned at spiral board lower end, and eddy flow gas cap is provided with pallet further below.
Point 3 major parts in washing tower tray tower: washing spraying layer, spray water source uses Fresh process water, surface water cleaning of evaporator carries
Supply, it is preferred that washing spraying layer is 1～5 layer；Washing tower tray, the collecting system of washing tower tray uses multiple eddy flow gas caps equal
Cloth structure, flue gas from bottom to top enters gas cap in the middle of single gas cap, and after spiral board is except mist, flue gas is given vent to anger from gas cap top,
Tray bottom is collected spray washing water and is back to water washing tank, makes water washing tank system water mass balancing.Whole gas cap is uniform in tower body,
Rationally distributed, air-flow uniformly through, bias current will not be produced；Washing packing layer, arranges between spraying layer and washing tower tray and fills out
The bed of material, as gas-liquid mass transfer and rectification, flue gas air-flow after washing tower tray tower is uniform, can be stable through pre-demister
More efficient by secondary washing and filter large particulate matter.
Preferably, described washing spraying layer is arranged above with two-layer with washing packing layer respectively below washing tower tray.
Preferably, the spray angle of the spray nozzle in described washing spraying layer is 110 °～130 °.
Preferably, the number of described eddy flow component is 40～60, and described eddy flow component is evenly distributed on flue cross section.
Preferably, the side of described eddy flow component and the horizontal line angle of bottom surface are 15 °～45 °.
Preferably, being additionally provided with pre-demister between described electric demister and washing tower tray tower, described pre-demister is by filling out
The bed of material and water washing device composition, the rinse spray nozzle of described water washing device is positioned at the crossbeam of packing layer and desulfurizer device outlet
Between.
The beneficial effects of the utility model；
Between pre-demister, a set of washing tower tray, steady air flow are installed by exporting at desulfurizer device, make flue gas pass through
After washing tower tray tower, air-flow is uniform, can stablize more efficient by secondary washing and filter large particulate matter through electric demister.
In flue gas, granular material discharged concentration has had obvious reduction, aerosol removal efficiency to be obviously improved, former desulfurizer after removing mist
Granular material discharged concentration 45.7mg/Nm3It is down to 9.8mg/Nm after transformation3, meet the requirement of minimum discharge, efficiently solve
The technical barrier of flue gas particles even minimum discharge up to standard, significantly reduces cost of investment, saves the area.
Accompanying drawing explanation
Fig. 1 is the ammonia type flue gas desulfurizing apparatus figure adding washing tower tray tower, and wherein 1 represents electric demister, and 2 represent desulfurization
Tower, wherein 3 represent washing tower tray tower, and 31 represent washing tower tray, and 32 represent washing packing layer, and 33 represent washing spraying layer；
Fig. 2 is the layout of washing tower tray, and wherein 314 is eddy flow gas cap；
Fig. 3 is the A-A profile washing tower tray in Fig. 2, and wherein 311 is pallet, and 312 is eddy flow component, and 313 is eddy flow
Plate.
Detailed description of the invention
Below detailed description of the invention of the present utility model is described further:
Embodiment
Ammonia type flue gas desulfurizing apparatus includes that pretreatment unit, desulfurizer device, electric demister, flue gas are arranged the most successively
Put device.
After transformation: between the outlet of desulfurizing tower 2 device and electric demister 1, a set of washing tower tray tower 3 is installed, washes tower tray tower
Include the most successively washing tower tray 31, washing packing layer 32, washing spraying layer 33, uniform setting in described washing tower tray
Eddy flow gas cap 314, described eddy flow gas cap 314 includes that eddy flow component 312 and spiral board 313, described eddy flow component are positioned at eddy flow
Plate lower end, eddy flow gas cap 314 is provided with pallet 311 further below.
Washing tower tray technological parameter is as shown in table 1:
Tower tray technological parameter washed by table 1
Flue gas removes sulfur dioxide through desulfurizing tower recirculated water after pretreatment unit dedusting；Then flue gas is through washing tower tray
Tower, washs, and through washing tower tray, the collecting system of washing tower tray uses multiple eddy flow gas cap distribution equalizing structures, flue gas
From bottom to top entering gas cap in the middle of single gas cap, after spiral board is except mist, flue gas is given vent to anger from gas cap top, and tray bottom is collected
Spray washing water is back to water washing tank, makes water washing tank system water mass balancing.Whole gas cap is uniform in tower body, rationally distributed,
Air-flow uniformly through, bias current will not be produced；Washing packing layer, arranges packing layer between spraying layer and washing tower tray, as
Gas-liquid mass transfer and rectification, flue gas removes the aerosol in flue gas after washing tower tray tower, and air-flow is uniform, through pre-except mist
Can stablize more efficient by secondary washing and filter large particulate matter during device；Enter back into through washing tower tray tower flue gas out
Electric demister wet electrical dust precipitator, the remaining fog particles of trapping and aerosol cloud, after purification, tail gas is arranged by smoke discharging device
Put.
Contrast on effect before and after transformation, concrete dataware table 2:
Contrast on effect before and after the transformation of table 2 ammonia type flue gas desulfurizing apparatus
It can be seen from the results above that solid particulate matter concentration of emission≤10mg/Nm in stove flue gas after desulfurization3, SO2Discharge dense
Degree≤35mg/Nm3, in this utility model transformation flue gas, granular material discharged concentration has had obvious reduction, aerosol removal efficiency
It is obviously improved, by former desulfurizer except granular material discharged concentration 45.7mg/Nm after mist3It is down to 9.8mg/Nm after transformation3, meet
The requirement of minimum discharge, efficiently solves the technical barrier of flue gas particles even minimum discharge up to standard, significantly reduces throwing
Money cost, saves the area.
The announcement of book and teaching according to the above description, this utility model those skilled in the art can also be to above-mentioned embodiment party
Formula changes and revises.Therefore, this utility model is not limited to detailed description of the invention disclosed and described above, to sending out
Some bright modifications and changes should also be as falling in scope of the claims of the present utility model.Although additionally, this explanation
Book employs some specific terms, but these terms are merely for convenience of description, this utility model is not constituted any
Limit.
Claims (6)
1. an ammonia type flue gas desulfurizing apparatus, described ammonia type flue gas desulfurizing apparatus includes pretreatment unit the most successively, takes off
Sulfur tower apparatus, electric demister, smoke discharging device, it is characterised in that desulfurizer device outlet and electric demister it
Between a set of washing tower tray tower is installed, washing tower tray tower includes washing tower tray, washing packing layer, washing spray the most successively
Layer, the uniform eddy flow gas cap that arranges in described washing tower tray, described eddy flow gas cap includes eddy flow component and spiral board, described eddy flow
Component is positioned at spiral board lower end, and eddy flow gas cap is provided with pallet further below.
Device the most according to claim 1, it is characterised in that described washing spraying layer respectively washing tower tray below and
Washing packing layer is arranged above with two-layer.
Device the most according to claim 1, it is characterised in that the spray angle of the spray nozzle in described washing spraying layer
It it is 110 °～130 °.
Device the most according to claim 1, it is characterised in that the number of described eddy flow component is 40～60, described
Eddy flow component is evenly distributed on flue cross section.
Device the most according to claim 1, it is characterised in that the side of described eddy flow component and the horizontal wire clamp of bottom surface
Angle is 15 °～45 °.
Device the most according to claim 1, it is characterised in that also set between described electric demister and washing tower tray tower
Pre-demister, described pre-demister is had to be made up of packing layer and water washing device, the rinse spray nozzle of described water washing device
Between the crossbeam that packing layer and desulfurizer device export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620311403.2U CN205598941U (en) | 2016-04-13 | 2016-04-13 | Flue -gas desulfurizing device by ammonia process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620311403.2U CN205598941U (en) | 2016-04-13 | 2016-04-13 | Flue -gas desulfurizing device by ammonia process |
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| CN205598941U true CN205598941U (en) | 2016-09-28 |
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| CN201620311403.2U Active CN205598941U (en) | 2016-04-13 | 2016-04-13 | Flue -gas desulfurizing device by ammonia process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018103340A1 (en) * | 2016-12-08 | 2018-06-14 | 广东佳德环保科技有限公司 | Water scrubber for high-efficiency removal of aerosol |
| CN108514799A (en) * | 2018-06-21 | 2018-09-11 | 广东佳德环保科技有限公司 | A kind of denitration integrated device including mesh mist eliminator |
-
2016
- 2016-04-13 CN CN201620311403.2U patent/CN205598941U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018103340A1 (en) * | 2016-12-08 | 2018-06-14 | 广东佳德环保科技有限公司 | Water scrubber for high-efficiency removal of aerosol |
| CN108514799A (en) * | 2018-06-21 | 2018-09-11 | 广东佳德环保科技有限公司 | A kind of denitration integrated device including mesh mist eliminator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Apparatus for desulfurizing smoke through ammonia process Effective date of registration: 20171207 Granted publication date: 20160928 Pledgee: Guangzhou Caold financing Company limited by guarantee Pledgor: Guangdong Jiade Environmental Protection Technology Co., Ltd. Registration number: 2017440000168 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190312 Granted publication date: 20160928 Pledgee: Guangzhou Caold financing Company limited by guarantee Pledgor: Guangdong Jiade Environmental Protection Technology Co., Ltd. Registration number: 2017440000168 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |