CN107583429A - A kind of ship flue gas desulfurization removes nitre device and technique - Google Patents
A kind of ship flue gas desulfurization removes nitre device and technique Download PDFInfo
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- CN107583429A CN107583429A CN201711006715.8A CN201711006715A CN107583429A CN 107583429 A CN107583429 A CN 107583429A CN 201711006715 A CN201711006715 A CN 201711006715A CN 107583429 A CN107583429 A CN 107583429A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The present invention is that a kind of ship flue gas desulfurization removes nitre device and technique.Apparatus of the present invention include spray column and coupled flue, flue is disposed with flue air inlet, ozone injector, first jet along smoke movement direction, the direction of motion of the spray column principal space axial direction along flue gas is disposed with rectification porous plate, second nozzle, the 3rd nozzle, gas cooler, demisting layer, spray column gas outlet, the bottom of spray column is inverted cone, and is provided centrally with spray column wastewater outlet in inverted cone.Present apparatus combination ozonation technology and spray-absorption technology handle ship flue gas, lower nitrogen oxides and sulfur dioxide with ozone oxidation, its pollutant is beneficial to be absorbed by follow-up circulated sprinkling three times and is efficiently removed.It is reasonable that technique is set, and installation area is small, build or reconstruct on ship all easily, construction cost it is low.
Description
Technical field
The present invention relates to atmospheric environment protection field, and nitre device and technique are removed especially with regard to a kind of ship flue gas desulfurization.
Background technology
With the development of Shipping industry, ship machine exhaust pollution increasingly sharpens, and the pollutant of discharge includes nitrogen oxides
(NOx), oxysulfide (SOx), carbon monoxide (CO), hydrocarbon (HC) and particulate matter (PM) etc., and there is mobility
Greatly, the features such as diffusivity is big, the duration is long.Shown according to International Maritime Organization (IMO) statistics in 2014, ship discharge
SOx, NOx account for the 13% and 15% of Global emissions total amount respectively.The statistics display of motor vehicle blowdown Surveillance center of Chinese environmental protection portion,
National ship SO2 discharge capacitys account for the 8.4% of national total emission volumn within 2013, and NOx discharge accounts for 11.3%, by Pollution From Ships shadow
Ring maximum is port city, next to that rivers bank city.The exhaust pollution of ship machine turns into after tail gas pollution of motor-driven vehicle, industry
After enterprise's exhaust emission, the third-largest atmosphere pollution source in China, the strong interest of the whole society is caused.
Chinese transportation Department of Transportation proposes《Ship and port pollution preventing and treating special campaigns embodiment (2015-2020
Year)》, explicitly point out, to the year two thousand twenty, Pearl River Delta, the Yangtze River Delta, Circum-Bohai Sea (Jing-jin-ji region) waters ship oxysulfide, nitrogen oxides,
Particulate matter declined 65%, 20%, 30% respectively compared with 2015.Therefore, the ship machine exhaust pollution control policy in current China
It is broadly divided into three aspects：First, realize SO2 control by strictly controlling the fuel oil that ship uses；Second, marked by discharging
Standard limits CO, HC, NOx and PM etc. discharge；Third, by actively promoting the use of bank electricity, the tail during ship reaches port is reduced
Gas discharges, and makes at " green harbour ".Marine exhaust is administered extremely urgent.
Research and development currently for the treatment technology of ship tail gas are still at an early stage.The U of CN 206397567 disclose ship
Oceangoing ship exhaust gas denitration system, its Benitration reactor mainly include Urea Evaporation room, blender and reative cell, and the Urea Evaporation room is provided with
Urea liquid spray gun, the blender connect the Urea Evaporation room and the reative cell, and waste gas is de- into this through the exhaust gas denitration pipeline
Behind the Urea Evaporation room of nitre reactor, mix with urea and enter through the blender after the reative cell carries out denitration and discharge.CN
104326604 B disclose it is a kind of based on the marine exhaust desulfurization washing water treatment technology and its processing system of alkaline process is received, mainly
It is to introduce marine exhaust desulfurization washings to neutralize oxidation integral pool, air is blasted by sulphite into pond by Aeration fan
Sulfate is oxidized to, the pH value of the marine exhaust desulfurization washings added in sodium hydroxide solution regulation neutralization oxidation integral pool reaches
To discharge standard, and using be aerated disturbance neutralize it is quenched.Conventional marine exhaust treatment technology has SCR, EGR, washer
It is different etc. technology, these technical principles, respectively there are its scope of application and feature, advantage and disadvantage.Therefore, in the market still lack one kind can
Meet emission request, take up an area small, efficiency high, safeguard at ship denitrating flue gas that is simple, adapting to marine special natural environment waterborne
Reason system.
The content of the invention
It is an object of the invention to provide a kind of can continually and steadily run, less energy consumption, take up an area small, efficiency high, maintenance
Simply, a kind of ship flue gas desulfurization for adapting to marine special natural environment waterborne removes nitre device and technique.
It is an object of the invention to disclose a kind of ship flue gas desulfurization to remove nitre device, for achieving the above object, this
It is as follows to invent the technical scheme taken.
A kind of ship flue gas desulfurization removes nitre device, including spray column and coupled flue, and flue is along smoke movement side
To flue air inlet, ozone injector, first jet is disposed with, the ozone injector passes through pipeline and ozone generator
Connection；The connector of spray column and flue is spray column air inlet, and the pipeline before spray column air inlet is in certain slope to tower body
Direction tilts；Flue gas is entered in spray column by spray column air inlet, and the spray column principal space axial direction is along flue gas
The direction of motion is disposed with rectification porous plate, second nozzle, the 3rd nozzle, gas cooler, demisting layer, spray column outlet
Mouthful, the first jet, second nozzle, the 3rd nozzle are connected with slurry diversion device, the slurry diversion device and slurries
The delivery port connection of circulating pump, the water inlet of the slurry circulating pump go out with being arranged at the spray column slurries of the spray column bottom
Mouth connection.Slurry diversion device can supply the slurries of spray to the first jet, second nozzle, the 3rd nozzle simultaneously,
Slurries and flue gas are entered the prewashing tower after reacting, and enter the serum recycle by the spray column serum outlet
Pump, form the serum recycle of completion.
Preferably, the bottom of the spray column is inverted cone, waste liquid can be preferably collected, and in inverted cone
It is provided centrally with spray column wastewater outlet.
Preferably, also include the first sea water pump, the first filter being sequentially connected with the gas cooler；The cigarette
Gas Cooler is the coiled pipe heat-exchange device being distributed in the shape of a spiral, and seawater is by the first filter by first seawater
It is pumped into, outboard is discharged from the pipe other end after entering the gas cooler, with flue gas exchanged heat from center.The flue gas cooling
Device can reduce flue-gas temperature, greatly reduce water content in flue gas, reduce water smoke carrying amount.
Preferably, also include heat exchanger, the second sea water pump, the second filter；The heat exchanger is provided with hot friendship
Parallel operation sea intake, heat exchanger seawer outlet, heat exchanger slurry inlet, heat exchanger serum outlet；The heat exchanger
Sea intake is connected with second sea water pump, second filter successively, and the heat exchanger seawer outlet connects with outboard
Connect, the heat exchanger slurry inlet is connected with the slurry circulating pump delivery port, the heat exchanger serum outlet with it is described
Slurry diversion device connects.Slurries are entered in the heat exchanger by the heat exchanger slurry inlet, are handed over by the heat
Parallel operation serum outlet flows out, and the second sea water pump extracting seawater enters heat exchanger by the heat exchanger sea intake
It is interior, with seawater by being cooled down after heat exchange, outboard is then discharged by the heat exchanger seawer outlet.
Preferably, also include with coyote hole, medicament storage box, the 3rd sea water pump, the 3rd filter and be arranged at spray
The spray column injection point of tower side wall, it is described to be connected with coyote hole outlet with the spray column by spray column injection point；It is described
It is connected successively with the 3rd sea water pump, the 3rd filter with coyote hole first entrance, it is described to match somebody with somebody coyote hole second entrance and medicament storage box
Connection.Seawater is pumped into by the 3rd filter by the 3rd seawater, into interior of making up a prescription, with medicament storage box internal memory
The alkaline matter mixing of storage, is configured to the slurries.The alkaline matter is caustic alkali or magnesia.Caustic alkali is conventional
Alkali, cheap, alkalescence is high, easily uses, but corrosivity easy deliquescence by force, if configuring spray liquid using caustic alkali, is storing
When it is noted that anti-corrosion is moistureproof, medicament storage box will do corresponding processing.Magnesia is common basic anhydride, in powdery, nothing
Poison is harmless, the consumption sprayed only has caustic alkali 1/4 is done, so required memory space is small.But its solubility in water is relatively low,
The spray liquid of configuration is in slurry, if configuring spray liquid using magnesia, circulated sprinkling pump should change the pump of energy transported slurry into.
Preferably, also include be sequentially connected with the spray column wastewater outlet wastewater treatment equipment, sewage collecting box,
Sludge treatment equipment connects.Waste water can be directly handled on hull, saves forms space protection environment.
Preferably, the porous board diameter of rectification is identical with tower body internal diameter, multiple circles are opened on the rectification porous plate
Aperture, percent opening 50-80%, preferred value 58% can preferably smooth air-flow.
Preferably, the demisting layer is corrosion-resistant folded plate demister, the steam carried secretly in flue gas is removed.
Preferably, also including pH meter and liquid level gauge, the pH meter and liquid level gauge are arranged at the inverted cone of tower body bottom
In body.
Another object of the present invention, it is to disclose a kind of ship flue gas desulfurization technique of nitrate removal according to said apparatus, including
Following processing step：
(1) ship flue gas enters flue by flue air inlet, and ozone generator produces ozone and is delivered to ozone injector,
Ozone injector is to flue gas contrainjection ozone, ozone energy oxidizing lower nitrogen oxides and sulfide, such as nitric oxide (NO)
It is oxidized to nitrogen dioxide (NO2), sulfur dioxide (SO2) it is oxidized to sulfur trioxide (SO3)；
(2) circulation is washed for the first time for the slurries generation that the ship flue gas by step (1) processing sprays with first jet, high
Valency nitrogen oxides and sulfur trioxide can be reacted to acid compared to low oxide with water, and then slurries neutral and alkali material and acid are sent out
Raw acid-base neutralization reaction desulfurization removes nitre, nitrogen oxides and sulfide and absorbed, and the slurries that first jet sprays enter stack base,
Spray column is entered by the inclined pipeline of stack base, serum recycle is returned to by the spray column serum outlet for spraying tower bottom
Pump, form complete cycle；
(3) the ship flue gas by step (2) processing is entered in spray column by spray column air inlet, porous by rectification
The smooth air-flow of plate, occur to circulate washing twice in succession with second nozzle and the 3rd nozzle, further absorbing NOx and vulcanization
The slurries that thing, second nozzle and the 3rd nozzle spray enter prewashing tower bottom, pass through the spray column serum outlet of prewashing tower bottom
Slurry circulating pump is returned to, forms complete cycle；
(4) by the ship flue gas of step (3) processing, gas cooler cooling, demister dehumidifying are passed sequentially through, seawater leads to
Cross the first filter to be pumped into by first seawater, after entering the gas cooler, with flue gas exchanged heat from center
Outboard is discharged from the pipe other end, flue-gas temperature can be reduced, greatly reduces water content in flue gas, water smoke carrying amount is reduced, then, removes
Day with fog is corrosion-resistant folded plate demister, removes the steam carried secretly in flue gas, and the flue gas up to standard after purification is gone out by spray column
Gas port is discharged；
(5) tower body liquid level and pH value are judged by being arranged at pH meter and liquid level gauge in the inverted cone of tower body bottom, if
Liquid level is higher than setting value, opens the spray column wastewater outlet of tower body bottom, waste water flow into wastewater treatment equipment, sewage collecting box,
In sludge treatment equipment, handled, if pH value is less than setting value, add spray column injection point input slurries, slurries exist
Indoor completion of making up a prescription configures；With coyote hole by the seawater after the 3rd sea water pump and the input filtering of the 3rd filter, deposited by medicament
Storage tank inputs alkaline matter, is then mixedly configured into the slurries.If configuring spray liquid using caustic alkali, to be noted in storage
Anti-corrosion of anticipating is moistureproof, and medicament storage box will do corresponding processing.If use magnesia, because solubility is relatively low in its water, configuration
Spray liquid be in slurry, if using magnesia configure spray liquid, circulated sprinkling pump should change into can transported slurry pump；
When serum recycle pump work, heat exchanger, the second sea water pump, the second filter are opened；Slurries pass through the heat
Exchanger slurry inlet enters in the heat exchanger, is flowed out by the heat exchanger serum outlet, second sea water pump
Extracting seawater is entered in heat exchanger by the heat exchanger sea intake, with seawater by being cooled down after heat exchange,
Then outboard is discharged by the heat exchanger seawer outlet, slurries neutral and alkali material and acid occur acid-base neutralization reaction desulfurization and removed
Nitre is exothermic reaction, reduce loop slurry temperature, can significantly more efficient desulfurization remove nitre.
Relative to prior art, the present invention achieves beneficial technique effect：
1. present apparatus combination ozonation technology and spray-absorption technology handle ship flue gas, with ozone oxidation at a low price
Nitrogen oxides and sulfur dioxide, its pollutant is set to be beneficial to absorb efficiently removal by follow-up circulated sprinkling three times.
2. the waste water handled can reclaim sludgeization processing, environment-friendly high-efficiency；
3. it is reasonable that technique is set, installation area is small, simple in construction, easy maintenance, builds or reconstructs all on ship
Easily, construction cost is low, can not only improve the utilization ratio of device, reduces the complexity of technique again.
Brief description of the drawings
Fig. 1 device technique schematic flow sheets；
Fig. 2 gas cooler partial enlarged drawings；
Fig. 3 rectification porous plate partial enlarged drawings.
Reference：Spray column 1, flue 2, flue air inlet 3, ozone injector 4, ozone generator 5, first jet 6,
Spray column air inlet 7, rectification porous plate 8, second nozzle 9, the 3rd nozzle 10, gas cooler 11, demisting layer 12, spray column go out
Gas port 13, the first sea water pump 14, first filter 15, heat exchanger 16, heat exchanger sea intake 161, heat exchanger seawater
Outlet 162, heat exchanger slurry inlet 163, heat exchanger serum outlet 164, the second sea water pump 17, the second filter 18, slurry
Liquid circulating pump 19, with coyote hole 20, the 3rd sea water pump 21, the 3rd filter 22, medicament storage box 23, sludge treatment equipment 24, useless
Water collection tank 25, wastewater treatment equipment 26, spray column wastewater outlet 27, spray column serum outlet 28, spray column injection point 29,
Slurry circulating pump delivery port 30, slurry diversion device 31.
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
Embodiment
A kind of ship flue gas desulfurization removes nitre device, as shown in figure 1, its agent structure is spray column 1 and coupled cigarette
Road 2, the connector of spray column 1 and flue 2 be spray column air inlet 7, and the passage before spray column air inlet 7 is in certain slope to tower
Body direction tilts, to prevent and treat liquid product in flue.The one end of flue 2 is provided with flue air inlet 3, along smoke movement direction successively
Ozone injector 4, first jet 6 are provided with, the ozone injector 4 is connected by pipeline with ozone generator 5.Ozone occurs
Device 4 produce ozone, by ozone injector 4 in flue 2 to flue gas contrainjection ozone, ozone energy oxidizing lower nitrogen oxides
With part sulfur dioxide, it is easy to follow-up spray-absorption to remove.The flue gas treated by ozone is entered by spray column air inlet 7
In spray column 1, the direction of motion of the principal space axial direction of spray column 1 along kiln gas be disposed with rectification porous plate 8,
Sprayed in second nozzle 9, the 3rd nozzle 10, gas cooler 11, demisting layer 12, spray column gas outlet 13, flue gas and nozzle
Slurries occur chemical action and then handled, and are discharged by spray column gas outlet 13.
The first jet 6, the nozzle 10 of second nozzle 9 and the 3rd are connected with slurry diversion device 31, slurry diversion device
31 are connected with slurry circulating pump delivery port 30, and the bottom of spray column 1 is provided with spray column serum outlet 28, spray column serum outlet 28
It is connected with the water inlet of slurry circulating pump 19, slurries form a serum recycle in spray column.
The bottom of spray column 1 is inverted cone, can preferably collect slurries, and inverted cone is provided centrally with spray column
Wastewater outlet 27, spray column wastewater outlet 27 are connected by pipeline with wastewater treatment equipment 26, wastewater treatment equipment 26 and waste water
Collecting box 25 is connected, and sewage collecting box 25 is connected with sludge treatment equipment 24.
The side wall of spray column 1 is provided with spray column injection point 29, and spray column injection point 29 with the outlet of coyote hole 20 with connecting
Connect, be connected successively with the 3rd sea water pump 21, the 3rd filter 22 with the first entrance of coyote hole 20, the 3rd filter 22 and seawater A connects
It is logical, be connected with the second entrance of coyote hole 20 with medicament storage box 23, medicament storage box 23 is stored with alkaline matter, such as caustic alkali or
Magnesia, the extracting seawater of the 3rd sea water pump 21 enter match somebody with somebody coyote hole 20, mix according to a certain percentage with coyote hole 20 mix seawater with
Alkaline matter obtains the slurries, and the slurries are entered in spray column 1 by spray column injection point 29.
As preferred embodiment, in addition to heat exchanger 16, heat exchanger 16 is provided with heat exchanger sea intake
161st, heat exchanger seawer outlet 162, heat exchanger slurry inlet 163, heat exchanger serum outlet 164, heat exchanger slurries
Import 163 is connected with slurry circulating pump delivery port 30, and heat exchanger serum outlet 164 is connected with slurry diversion device 31, slurries
Part flow arrangement 31 connects to be connected with first jet 6, the nozzle 10 of second nozzle 9 and the 3rd, and slurries are entered by heat exchanger slurries
Mouth 163 enters in heat exchanger 16, is flowed out by heat exchanger serum outlet 164；Heat exchanger sea intake 161 is successively with
Two sea water pumps 17, the second filter 18 connect, the connection of the second filter 18 seawater A, heat exchanger seawer outlet 162 and outboard B
Connection, the extracting seawater of the second sea water pump 17 are entered in heat exchanger 16 by heat exchanger sea intake 161, pass through heat with seawater
Amount exchange is cooled down, and then discharges outboard by heat exchanger seawer outlet 162.
Gas cooler 11 is as shown in Fig. 2 gas cooler 11 connects with the first sea water pump 14, first filter 15 successively
Connect, first filter 15 connects with seawater A, and gas cooler 11 is the coiled pipe heat-exchange device being distributed in the shape of a spiral, seawater
It is pumped into by first filter 15 by the first sea water pump 14, from pipe after entering gas cooler 11, with flue gas exchanged heat from center
The other end discharges outboard, and gas cooler 11 can reduce flue-gas temperature, greatly reduces water content in flue gas, reduces water smoke and carries
Amount.
As described in Figure 3, the diameter of rectification porous plate 8 is identical with tower body internal diameter for rectification porous plate 8, the rectification porous plate
Multiple circular apertures, percent opening 50-80%, preferred value 58% are opened on 8.The liquid that nozzle sprays is in vaporific, spray angle
More than 120 °, whole tower body inner section can be covered.The demisting layer 12 is corrosion-resistant folded plate demister, removes what is carried secretly in flue gas
Steam.
As preferred embodiment, in addition to pH meter and liquid level gauge, the pH meter and liquid level gauge are arranged at tower body bottom
Inverted cone in.
A kind of ship flue gas desulfurization technique of nitrate removal, including following processing step：
(1) ship flue gas enters flue 2 by flue air inlet 3, and ozone generator 5 produces ozone and is delivered to ozone injection
Device 4, ozone injector 4 is to flue gas contrainjection ozone, ozone energy oxidizing lower nitrogen oxides and sulfide, such as nitric oxide
(NO) it is oxidized to nitrogen dioxide (NO2), sulfur dioxide (SO2) it is oxidized to sulfur trioxide (SO3)；
(2) circulation is washed for the first time for the slurries generation that the ship flue gas by step (1) processing sprays with first jet 6,
Higher nitrogen oxides and sulfur trioxide can be reacted to acid compared to low oxide with water, then slurries neutral and alkali material and acid
The desulfurization of generation acid-base neutralization reaction removes nitre, nitrogen oxides and sulfide and absorbed, and the slurries that first jet 5 sprays enter flue bottom
Portion, tower is flowed into by the inclined pipeline of stack base, serum recycle is returned to by the spray column serum outlet 28 of the bottom of spray column 1
Pump 19, form complete cycle；
(3) the ship flue gas by step (2) processing is entered in spray column 1 by spray column air inlet 7, more by rectification
8 smooth air-flow of orifice plate, occur to circulate washing twice in succession with the nozzle 10 of second nozzle 9 and the 3rd, further absorbing NOx
And sulfide, the slurries that the nozzle 10 of second nozzle 9 and the 3rd sprays enter the bottom of prewashing tower 1, pass through the spray of prewashing tower bottom
Tower serum outlet 28 returns to slurry circulating pump 19, forms complete cycle；
(4) by the ship flue gas of step (3) processing, pass sequentially through that gas cooler 11 cools down, demisting layer 12 dehumidifies, sea
Water is pumped into by the first filter 14 by first sea water pump 15, enters the gas cooler 11 from center, with cigarette
Outboard is discharged from the pipe other end after gas exchanged heat, flue-gas temperature can be reduced, greatly reduces water content in flue gas, water smoke is reduced and carries
Amount, then, demister 12 is corrosion-resistant folded plate demister, removes the steam carried secretly in flue gas, the flue gas up to standard after purification
Discharged by spray column gas outlet 13；
(5) tower body liquid level and pH value are judged by being arranged at pH meter and liquid level gauge in the inverted cone of tower body bottom, if
Liquid level is higher than setting value, opens the spray column wastewater outlet 27 of tower body bottom, and waste water flows into wastewater treatment equipment 26, wastewater collection
In case 25, sludge treatment equipment 24, handled, if pH value is less than setting value, is inputted and starched by spray column injection point 29
Liquid, slurries are with completion configuration in coyote hole 20；After being filtered with coyote hole 20 by the 3rd sea water pump 21 and the input of the 3rd filter 22
Seawater, by medicament storage box 23 input alkaline matter, be then mixedly configured into the slurries.If configured using caustic alkali
Spray liquid, in storage it is noted that anti-corrosion is moistureproof, medicament storage box will do corresponding processing.If using magnesia, due to it
Solubility is relatively low in water, and the spray liquid of configuration is in slurry, if configuring spray liquid using magnesia, circulated sprinkling pump should change into
The pump of energy transported slurry；
When slurry circulating pump 19 works, heat exchanger 16, the second sea water pump 17, the second filter 18 are opened；Slurries lead to
Cross the heat exchanger slurry inlet 163 to enter in the heat exchanger 16, flowed by the heat exchanger serum outlet 162
Go out, the extracting seawater of the second sea water pump 17 is entered in heat exchanger 16 by the heat exchanger sea intake 161, with seawater
By being cooled down after heat exchange, outboard, slurries neutral and alkali material are then discharged by the heat exchanger seawer outlet 162
Acid-base neutralization reaction desulfurization occurs except nitre is exothermic reaction with acid, reduces loop slurry temperature, can significantly more efficient desulfurization remove
Nitre.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and changed.Therefore, the invention is not limited in embodiment disclosed and described above, to the one of invention
A little modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although used in this specification
Some specific terms, but these terms are merely for convenience of description, do not form any restrictions to the present invention.
Claims (10)
1. a kind of ship flue gas desulfurization removes nitre device, it is characterised in that including spray column and coupled flue, flue is along cigarette
The gas direction of motion is disposed with flue air inlet, ozone injector, first jet, the ozone injector by pipeline with it is smelly
Oxygen Generator connects；The connector of spray column and flue is spray column air inlet, and the pipeline before spray column air inlet is in certain slope
Spend to tower body direction and tilt；Flue gas is entered in spray column by spray column air inlet, and the spray column body interior is along flue gas
The direction of motion is disposed with rectification porous plate, second nozzle, the 3rd nozzle, gas cooler, demisting layer, spray column outlet
Mouthful, the first jet, second nozzle, the 3rd nozzle are connected with slurry diversion device, the slurry diversion device and slurries
The delivery port connection of circulating pump, the water inlet of the slurry circulating pump go out with being arranged at the spray column slurries of the spray column bottom
Mouth connection.
2. device according to claim 1, it is characterised in that the bottom of the spray column is inverted cone, and in rounding
Cone is provided centrally with spray column wastewater outlet.
3. device according to claim 1, it is characterised in that also include first be sequentially connected with the gas cooler
Sea water pump, first filter；The gas cooler is the coiled pipe heat-exchange device being distributed in the shape of a spiral, and seawater passes through described
First filter is pumped into by first seawater, another from pipe after entering the gas cooler, with flue gas exchanged heat from center
Discharge outboard in one end.
4. device according to claim 1, it is characterised in that also including heat exchanger, the second sea water pump, the second filtering
Device；The heat exchanger is provided with heat exchanger sea intake, heat exchanger seawer outlet, heat exchanger slurry inlet, heat and handed over
Parallel operation serum outlet；The heat exchanger sea intake is connected with second sea water pump, second filter successively, described
Heat exchanger seawer outlet is connected with outboard, and the heat exchanger slurry inlet is connected with the slurry circulating pump delivery port, institute
State heat exchanger serum outlet to be connected with the slurry diversion device, slurries cool down after over-heat-exchanger to be filled into slurry diversion
Put.
5. device according to claim 1, it is characterised in that also include with coyote hole, medicament storage box, the 3rd sea water pump,
3rd filter and the spray column injection point for being arranged at spray tower side wall, it is described to pass through with coyote hole outlet with the spray column
Spray column injection point connects；It is described to be connected successively with the 3rd sea water pump, the 3rd filter with coyote hole first entrance, it is described to make up a prescription
Room second entrance is connected with medicament storage box, and the medicament storage box is stored with alkaline matter, and the alkaline matter is caustic alkali
Or magnesia.
6. device according to claim 2, it is characterised in that also include what is be sequentially connected with the spray column wastewater outlet
Wastewater treatment equipment, sewage collecting box, sludge treatment equipment.
7. device according to claim 2, it is characterised in that also including pH meter and liquid level gauge；The pH meter and liquid level gauge
It is arranged in the inverted cone of tower body bottom.
8. device according to claim 1, it is characterised in that the porous board diameter of rectification is identical with tower body internal diameter, institute
State and multiple circular apertures are opened on rectification porous plate, percent opening 50-80%.
9. device according to claim 1, it is characterised in that the demisting layer is corrosion-resistant folded plate demister.
A kind of 10. ship flue gas desulfurization technique of nitrate removal of device using described in claim any one of 1-9, it is characterised in that
Including following processing step：
(1) ship flue gas enters flue by flue air inlet, and ozone generator produces ozone and is delivered to ozone injector, ozone
Injector is to flue gas contrainjection ozone, ozone energy oxidizing lower nitrogen oxides and sulfide；
(2) circulation is washed for the first time for the slurries generation that the ship flue gas by step (1) processing sprays with first jet, nitrogen oxidation
Thing and sulfide are absorbed；
(3) the ship flue gas by step (2) processing is entered in spray column by spray column air inlet, is put down by rectification porous plate
Whole air-flow, occur to circulate washing twice in succession with second nozzle and the 3rd nozzle, further absorbing NOx and sulfide；
(4) by the ship flue gas of step (3) processing, gas cooler cooling, demister dehumidifying are passed sequentially through, via spray column
Discharge gas outlet；
(5) tower body liquid level and pH value are judged by being arranged at pH meter and liquid level gauge in the inverted cone of tower body bottom, if liquid level
Higher than setting value, the spray column wastewater outlet of opening tower body bottom, waste water flows into wastewater treatment equipment, sewage collecting box, sludge
In processing unit, handled, if pH value is less than setting value, add spray column injection point input slurries, slurries are making up a prescription
Indoor completion configuration；
Meanwhile the slurries that first jet, second nozzle and the 3rd nozzle spray enter spray tower bottom, are gone out by spray column slurries
Mouth enters slurry circulating pump, realizes complete circulation, when serum recycle pump work, opening heat exchanger, the second sea water pump, the
Tow filtrator, slurries are made to cool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711006715.8A CN107583429A (en) | 2017-10-25 | 2017-10-25 | A kind of ship flue gas desulfurization removes nitre device and technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711006715.8A CN107583429A (en) | 2017-10-25 | 2017-10-25 | A kind of ship flue gas desulfurization removes nitre device and technique |
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| Publication Number | Publication Date |
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| CN107583429A true CN107583429A (en) | 2018-01-16 |
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| CN201711006715.8A Pending CN107583429A (en) | 2017-10-25 | 2017-10-25 | A kind of ship flue gas desulfurization removes nitre device and technique |
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Cited By (3)
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| CN108261905A (en) * | 2018-04-08 | 2018-07-10 | 北京美斯顿科技开发有限公司 | A kind of denitration integrated device and method |
| CN108704478A (en) * | 2018-05-25 | 2018-10-26 | 哈尔滨工程大学 | Sodium alkali ship tail gas denitration integrated device and method |
| CN109316918A (en) * | 2018-11-02 | 2019-02-12 | 大连汉诺工程技术有限公司 | A kind of ship tail gas desulphurization denitration dedusting subtracts carbon technique and device |
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| CN204502693U (en) * | 2015-03-11 | 2015-07-29 | 高境 | The collaborative system removing dust and condensable particle in flue gas |
| CN105126575A (en) * | 2015-07-28 | 2015-12-09 | 青岛京润石化工程有限公司 | Desulphurization, dedusting and demisting method for flue gas |
| CN207546187U (en) * | 2017-10-25 | 2018-06-29 | 广东佳德环保科技有限公司 | A kind of ship flue gas desulfurization removes nitre device |
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| CN204502693U (en) * | 2015-03-11 | 2015-07-29 | 高境 | The collaborative system removing dust and condensable particle in flue gas |
| CN105126575A (en) * | 2015-07-28 | 2015-12-09 | 青岛京润石化工程有限公司 | Desulphurization, dedusting and demisting method for flue gas |
| CN207546187U (en) * | 2017-10-25 | 2018-06-29 | 广东佳德环保科技有限公司 | A kind of ship flue gas desulfurization removes nitre device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108261905A (en) * | 2018-04-08 | 2018-07-10 | 北京美斯顿科技开发有限公司 | A kind of denitration integrated device and method |
| CN108704478A (en) * | 2018-05-25 | 2018-10-26 | 哈尔滨工程大学 | Sodium alkali ship tail gas denitration integrated device and method |
| CN109316918A (en) * | 2018-11-02 | 2019-02-12 | 大连汉诺工程技术有限公司 | A kind of ship tail gas desulphurization denitration dedusting subtracts carbon technique and device |
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