CN201399317Y - Evaporative ammonia flue gas desulfurization purification device - Google Patents
Evaporative ammonia flue gas desulfurization purification device Download PDFInfo
- Publication number
- CN201399317Y CN201399317Y CN200820225050XU CN200820225050U CN201399317Y CN 201399317 Y CN201399317 Y CN 201399317Y CN 200820225050X U CN200820225050X U CN 200820225050XU CN 200820225050 U CN200820225050 U CN 200820225050U CN 201399317 Y CN201399317 Y CN 201399317Y
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- flue gas
- flushing
- ammoniacal liquor
- ammonia
- desulfurization
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Abstract
The utility model discloses an evaporative ammonia flue gas desulfurization purification device which comprises a desulfurizer, a demister, a flushing pipe, an ammonia evaporator, an air distributionbed, a desulfurization ring, an ammonia tank, a flushing water backflow ditch, an aeration device, a Roots blower, a flushing pump, an oxidation pond, a dust hopper, an ammonia measuring pump, an ammonia heater and a flushing valve, wherein the desulfurization ring, the demister, the flushing pipe, the ammonia evaporator, the air distribution bed and the dust hopper are horizontally arranged in the desulfurizer from up to down; the oxidation pond is connected with the ammonia measuring pump, the ammonia measuring pump is connected with the ammonia heater, and the ammonia heater is connected with the ammonia evaporator; the flushing water recovery ditch is connected with the dust hopper and enters the oxidation pond; the aeration device is arranged in the oxidation pond, and the aeration device is connected with the Roots blower; the flushing pump is arranged in the oxidation pond, and is connected with the flushing pipe; and the flushing pipe is connected with the flushing valve. The desulfurization efficiency of the evaporative ammonia flue gas desulfurization purification device is up to 99 percent, the operation is simple and the failure rate is low; the flue gas does not contain ammonium bisulfite and aerosol, so that the gas exhaust temperature is higher than 80 DEG C, thereby ensuring the spreading of the flue gas, and preventing the wet flue gas from corroding a flue anda chimney.
Description
Technical field
The utility model relates to the smoke discharging and purifying device of boiler and coal combustion equipment.
Background technology
The dust-removal and desulfurizing equipment overwhelming majority of using in the gas cleaning of boiler fired coal equipment at present adopts s wet method chemical tower template and common eddy flow template.From their design feature and the situation of practical application, there are some defectives respectively.The chemical tower template belongs to high efficient gas and liquid quality transmission type equipment, it can make the gas-liquid full contact, time of contact is longer, dedusting, desulfuration efficiency is higher, can reach 90% and 80% respectively, but because of the gas-liquid full contact mechanical type band water and two kinds of water phenomenons of gas type band water in the flue gas appear accordingly, mechanical type band hydromining can solve with the centrifugal type dewater unit, gas phase band water i.e. 150 ℃-180 ℃ flue gas and big sufficient disposable contact of quantity of fluid, make flue-gas temperature reduce to 40 ℃-50 ℃ and the aqueous vapor that produces, this aqueous vapor remove comparatively difficulty, aqueous vapor does not remove, cause the corrosion of flue and draught fan impeller, dust stratification, thus have a strong impact on the true(-)running of boiler.
Eddy flow template dust-removing desulfurating apparatus, the time of contact of flue gas and liquid and contact area are comparatively speaking not as good as the chemical tower template, thereby its dust-removal and desulfurizing efficient is also lower, be respectively 98-99% and 60-70%, the water phenomenon of flue gas, particularly gas type band water can not constitute excessive threat to flue and draught fan impeller, but on the selection of eddy flow plate, face many contradictions, as adopt the stainless steel material manufacturing, its corrosion, wearing and tearing can't solve, the general thick correct grinding fiber crops slabstone of 20-30mm that adopts, i.e. granite slab, the anti-corruption of this numb slabstone, wear-resisting need not worried; But fatal problem is that flue dust mainly removes on the eddy flow plate and easily concentrates on the eddy flow plate in the flue gas, make eddy flow plate load overweight and rupture, the eddy flow plate fragment that ruptures thick is promptly pounded the eddy flow plate to lower floor, in the course of time, causes eddy flow plate complete rupture in the tower and loses the function of dust-removal and desulfurizing.
The utility model content
The utility model purpose is to provide a kind of desulfuration efficiency height, simple to operate, does not contain ammonium bisulfite, aerosol and exhaust gas temperature in the flue gas simultaneously and is higher than 80 ℃, can avoid the desulfurization purifier of wet flue gas to the corrosion of flue and chimney.
The technical scheme that the utility model vaporation-type ammonia process flue gas desulfurization purifier is taked is: it comprises desulfurizing tower, demister, cleaning hose, the ammoniacal liquor evaporimeter, wind-distributing bed, desulfurization ring, cleaning hose, ammonia water tank, flushing water backflow ditch, aerator, roots blower, flushing pump, the oxidation pond, ash bucket, ammoniacal liquor measuring pump, the ammoniacal liquor heater, flushing valve.Wherein desulfurization ring, demister, cleaning hose, ammoniacal liquor evaporimeter, wind-distributing bed, ash bucket are horizontally set in the desulfurizing tower from top to bottom; Ammonia water tank is connected with the ammoniacal liquor measuring pump, and the ammoniacal liquor measuring pump is connected with the ammoniacal liquor heater, and the ammoniacal liquor heater is connected with the ammoniacal liquor evaporimeter; The flushing water recovery trench is connected with ash bucket, and ash bucket is connected with the oxidation pond; Oxidation is provided with aerator in the pond, and aerator is connected with roots blower; Flushing pump is arranged in the oxidation pond, and flushing pump is connected with cleaning hose, and cleaning hose is connected with flushing valve.
Above-mentioned vaporation-type ammonia process flue gas desulfurization purifier, its desulfurization ring level places the desulfurizing tower the top, is made up of active carbon and strong basicity and strong oxidation material.The desulfurization ring is installed 80 compositions according to boiler capacity by per ton of boiler.
Above-mentioned vaporation-type ammonia process flue gas desulfurization purifier, its flusher are arranged on demister up and down on two aspects, and nozzle and quantity evenly distribute according to the boiler capacity size.
Above-mentioned vaporation-type ammonia process flue gas desulfurization purifier, its ammoniacal liquor evaporimeter is installed in wind-distributing bed top, and evaporation tube evenly distributes according to the boiler capacity size and evaporates mouth.
Above-mentioned vaporation-type ammonia process flue gas desulfurization purifier, its ammonia water tank is connected with the ammoniacal liquor heater by the ammoniacal liquor measuring pump with the ammoniacal liquor evaporimeter; The flow of ammoniacal liquor measuring pump control ammoniacal liquor; After the flue gas that the ammoniacal liquor heater adopts boiler to discharge is heated to 80-90 ℃ with ammoniacal liquor, enter the ammoniacal liquor evaporimeter.
Above-mentioned vaporation-type ammonia process flue gas desulfurization purifier, its demister are arranged on ammoniacal liquor evaporimeter top, in establish baffling demist plate.
Above-mentioned vaporation-type ammonia process flue gas desulfurization purifier, its wind-distributing bed are arranged on the top of ash bucket in the housing, and according to the model difference several wireways are set, and this wireway can be set to the through type wireway, also can be rotary wireway.
One of advantage of the present utility model is: can make flue gas enter desulfurizing tower by certain flow through wind-distributing pipe in wind-distributing bed, make the utilization rate of devulcanizer reach 99%.
Two of advantage of the present utility model is: the desulfurization ring has strong absorption and oxidability to wet flue gas, can fully adsorb sulfur in smoke, and the clarifier desulfurized effect is better.
Three of advantage of the present utility model is: flushing water recycles, the water that contains ammonium sulfite after the flushing passes back into the precipitation oxidation pond, be blown into fresh air by air blast the sulfite oxidation that contains in the flushing water is become ammonium sulfate, ammonium sulfate is recyclable to be utilized again, and effects of energy conservation and environmental protection is obvious.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 is the utility model vaporation-type ammonia process flue gas desulfurization purifier structural representation;
Fig. 2 is the wind-distributing bed profile of the utility model vaporation-type ammonia process flue gas desulfurization purifier;
Fig. 3 is the desulfurization ring profile of the utility model vaporation-type ammonia process flue gas desulfurization purifier;
Fig. 4 is the ammoniacal liquor evaporimeter schematic diagram of the utility model vaporation-type ammonia process flue gas desulfurization purifier;
Fig. 5 is the demister schematic diagram of the utility model vaporation-type ammonia process flue gas desulfurization purifier.
The specific embodiment
As shown in the figure, vaporation-type ammonia process flue gas desulfurization purifier of the present utility model, it comprises desulfurizing tower 1, cleaning hose 2, demister 3, ammoniacal liquor evaporimeter 4, wind-distributing bed 5, desulfurization ring 6 are set in the desulfurizing tower 1, and wind-distributing bed 5 is made up of wind-distributing pipe 18 and cloth brattice 19, and cleaning hose 7, ammonia water tank 8, flushing backflow ditch 9, aerator 10, roots blower 11, flushing pump 12, oxidation pond 13, ash bucket 14, ammoniacal liquor measuring pump 15, ammoniacal liquor heater 16, flushing valve 17 is formed.Wind-distributing bed 5 is established guide duct 18 and cloth brattice 19; Demister 3 is established baffling demist plate 20; Ammoniacal liquor evaporimeter 4 is provided with ammoniacal liquor evaporation mouth 21.
As shown in the figure, flue gas enters in the desulfurizing tower 1 by the wireway 18 of wind-distributing bed 5.Ammoniacal liquor is stored in the ammonia water tank 8, be connected with ammoniacal liquor measuring pump 15, ammoniacal liquor measuring pump 15 is connected with ammoniacal liquor heater 16, ammoniacal liquor heater 16 is connected with ammoniacal liquor evaporimeter 4, enter ammoniacal liquor evaporimeter 4 by measuring pump 15 from the ammoniacal liquor that ammonia water tank 8 meterings provide after ammoniacal liquor heater 16 is heated to 80-90 ℃, ammoniacal liquor evaporimeter 4 carries out once desulfurization by evaporation mouthful 21 evaporation ammoniacal liquor.The ammonia of once desulfurization enters demister 3, carries out the baffling demist by deflection plate 20.Flushing water recovery trench 9 is connected the recovery flushing water and enters oxidation pond 13 with ash bucket 14, be provided with aerator 10 in the oxidation pond 13, and aerator 10 is connected the water that makes recovery and carries out the oxidation cycle use with roots blower 11.Flushing pump 12 is arranged in the oxidation pond 13, and flushing pump 12 is connected with cleaning hose 7, and cleaning hose 7 is connected with flushing valve 17, advances people's cleaning hose 2 through flushing valve 17 control flushing water flows and washes.Flue gas after the desulfurization enters desulfurization ring 6, and 6 pairs of wet flue gas of desulfurization ring have strong absorption and oxidability, can fully adsorb the remaining sulfur dioxide in the flue gas, carry out the secondary desulfurization, thereby make desulfurized effect better.Accessory substance that produces in the sweetening process and flushing water enter ash bucket 14, and wherein, flushing water can be received ditch 9 recovery through flushing water and enter oxidation pond 13, recycles after the precipitation oxidation.
Claims (5)
1. a vaporation-type ammonia process flue gas desulfurization purifier is characterized in that it comprises desulfurizing tower, demister, cleaning hose, ammoniacal liquor evaporimeter, wind-distributing bed, the desulfurization ring, cleaning hose, ammonia water tank, flushing water backflow ditch, aerator, roots blower, flushing pump, oxidation pond, ash bucket, the ammoniacal liquor measuring pump, ammoniacal liquor heater, flushing valve; Wherein desulfurization ring, demister, cleaning hose, ammoniacal liquor evaporimeter, wind-distributing bed, ash bucket are horizontally set in the desulfurizing tower from top to bottom; Ammonia water tank is connected with the ammoniacal liquor measuring pump, and the ammoniacal liquor measuring pump is connected with the ammoniacal liquor heater, and the ammoniacal liquor heater is connected with the ammoniacal liquor evaporimeter; The flushing water recovery trench is connected with ash bucket; Oxidation is provided with aerator in the pond, and aerator is connected with roots blower; Flushing pump is arranged in the oxidation pond, and flushing pump is connected with cleaning hose, and cleaning hose is connected with flushing valve.
2. vaporation-type ammonia process flue gas desulfurization purifier according to claim 1, it is characterized in that: desulfurization ring level places the desulfurizing tower the top, is made up of active carbon and strong basicity and strong oxidation material.
3. vaporation-type ammonia process flue gas desulfurization purifier according to claim 1 is characterized in that: cleaning hose is arranged on demister up and down on two aspects, and described cleaning hose is provided with some equally distributed nozzles.
4. vaporation-type ammonia process flue gas desulfurization purifier according to claim 1 is characterized in that: its demister is arranged on ammoniacal liquor evaporimeter top, in establish baffling demist plate.
5. vaporation-type ammonia process flue gas desulfurization purifier according to claim 1, it is characterized in that: wind-distributing bed is arranged on the top of ash bucket in the housing, wind-distributing bed is provided with several wireways, and this wireway can be set to the through type wireway, also can be rotary wireway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820225050XU CN201399317Y (en) | 2008-12-08 | 2008-12-08 | Evaporative ammonia flue gas desulfurization purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820225050XU CN201399317Y (en) | 2008-12-08 | 2008-12-08 | Evaporative ammonia flue gas desulfurization purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201399317Y true CN201399317Y (en) | 2010-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820225050XU Expired - Fee Related CN201399317Y (en) | 2008-12-08 | 2008-12-08 | Evaporative ammonia flue gas desulfurization purification device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201399317Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645802A (en) * | 2013-11-21 | 2015-05-27 | 北京皓天百能环保工程有限公司 | Desulfurization process and desulfurization apparatus with thermal pump for improving water mist removal effect |
| CN107854987A (en) * | 2017-10-16 | 2018-03-30 | 神华集团有限责任公司 | Ammonia process of desulfurization control method and control system |
-
2008
- 2008-12-08 CN CN200820225050XU patent/CN201399317Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645802A (en) * | 2013-11-21 | 2015-05-27 | 北京皓天百能环保工程有限公司 | Desulfurization process and desulfurization apparatus with thermal pump for improving water mist removal effect |
| CN104645802B (en) * | 2013-11-21 | 2017-07-07 | 北京皓天百能环保工程有限公司 | The sulfur removal technology and device of water removal fog effect are improved using heat pump |
| CN107854987A (en) * | 2017-10-16 | 2018-03-30 | 神华集团有限责任公司 | Ammonia process of desulfurization control method and control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20101208 |