CN208320430U - A kind of ship single column two-region high-efficiency desulfurization denitrification apparatus - Google Patents
A kind of ship single column two-region high-efficiency desulfurization denitrification apparatus Download PDFInfo
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- CN208320430U CN208320430U CN201820641671.XU CN201820641671U CN208320430U CN 208320430 U CN208320430 U CN 208320430U CN 201820641671 U CN201820641671 U CN 201820641671U CN 208320430 U CN208320430 U CN 208320430U
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Abstract
The utility model is a kind of ship single column two-region high-efficiency desulfurization denitrification apparatus, including sequentially connected exhaust-gas treatment pipeline and absorption tower, exhaust-gas treatment pipeline one end is provided with smoke inlet, the other end is connected to the absorption tower, exhanst gas outlet is provided at the top of the absorption tower, the exhaust-gas treatment pipeline is provided with ozone oxidation unit along smoke movement direction, and the absorption tower is disposed with the first absorptive unit, the second absorptive unit and demisting unit along smoke movement direction.The utility model realizes absorptive unit subregion in single column, first with NaOH solution high-efficiency desulfurization, then desulfurization product Na2SO3 solution denitration is utilized, by this subregion, divides a tower desulfurizing and denitrifying process of emphasis, can guarantee that desulphurization and denitration efficiency reaches 90% or more.
Description
Technical field
The utility model belongs to Air Pollution Control and marine vessel exhaust emission control technique field, is specifically related to one
Kind ship single column two-region high-efficiency desulfurization denitrification apparatus.
Background technique
With being continuously increased for ocean (inland river) ships that transport quantity, the discharge of ship tail gas is caused by atmosphere and water body
Pollution and harm are also on the rise, and the pollutant of discharge includes nitrogen oxides (NOx), oxysulfide (SOx), carbon monoxide
(CO), hydrocarbon (HC) and particulate matter (PM) etc., and have the characteristics that mobility is big, diffusivity is big, the duration is long,
It has become after tail gas pollution of motor-driven vehicle, industrial enterprise's exhaust emission, the third-largest atmosphere pollution source in China causes state
Inside and outside strong interest, International Maritime Organization (IMO) has also formulated a series of oil pollution from vessels pact, to limit ship tail gas
Discharge amount and specification fuel oil use, reinforce protection to atmosphere and the marine eco-environment.NOx mainly includes in ship tail gas
NO、NO2、N2O、N2O5Deng wherein NO accounts for 90% or more.95% is SO in SOx2, SO3Only 5%.Therefore, ship tail gas is controlled
The key of NOx and SOx discharge is to NO and SO2It is removed.
Currently, in land, for related fieldss such as coal-burning power plant, Metallurgy Industry and chemical industries, there are many mature flue gases
Processing technique, and it is still at an early stage for the processing technique of ship tail gas.Ship is at sea run, to emission-control equipment
The requirement of volume, vent gas treatment efficiency, handling, safety, economy etc. be different from land, cannot be simply land
On fume treatment technology directly apply to ship, it is necessary to carry out comprehensive analysis in conjunction with the practical operation situation of ship, select most suitable
Close the exhaust pollution control technology of real ship application.The technology of existing single treatment marine diesel tail gas has very much, such as: ship tail
Gas discharges NOX processing technique, and using catalytic reduction technique, (lean-burn NOX catalysis reduction, Selective Catalytic Reduction of NO X, NOX are adsorbed
Reduction catalysts) etc.；Ship tail gas discharges SO2Processing technique, using lime stone-gypsum etc.；At marine internal combustion engine pm emission
The methods of reason technology, collected using catcher.
CN205361047U discloses one kind for ship tail gas integration dust-removing desulfuring and denitrifying apparatus, specifically discloses packet
Include vacuum high-pressure dust-removal and desulfurizing denitration container, vacuum high-pressure accelerator, tail gas air inlet pipe, desulfurizing agent processing unit, at denitrfying agent
Device, mixed flow injection device, intake pump, exhaust apparatus, sump, operating control device are managed, the vacuum high-pressure dust-removal and desulfurizing is de-
Nitre container, tail gas air inlet pipe are connected with vacuum high-pressure accelerator respectively, the desulfurizing agent processing unit, denitrfying agent processing unit
It is connected respectively with intake pump, desulfurizing agent processing unit, denitrfying agent processing unit, intake pump are connected with mixed flow injection device respectively
Connect, the mixed flow injection device is connect with vacuum high-pressure dust-removal and desulfurizing denitration container, the exhaust apparatus, sump respectively with vacuum
High-pressure dust-cleaning desulphurization denitration container is connected, the vacuum high-pressure accelerator, desulfurizing agent processing unit, denitrfying agent processing unit,
Mixed flow injection device, intake pump, exhaust apparatus be connected with operating control device respectively however, there are equipment Pangs for the technical solution
Greatly, initial cost and the disadvantages of high operating cost, and there are more limitations.
CN102463015B discloses a kind of marine exhaust desulphurization denitration processing method, specifically includes filtration step, removes
Dust in marine diesel engine institute waste air；Ozone treatment step, the exhaust gas sprinkling ozone finished to dedusting；Hydrogen peroxide
Processing step, the exhaust gas sprinkling hydrogen peroxide finished to ozone treatment；Neutralisation treatment step, what is finished to hydrogen peroxide treatment is useless
Neutralizer is spilt in gas blowout；Dust removal step removes contained fine solid particle in the exhaust gas that neutralisation treatment finishes.Among the above and processing step
In, use sodium-chloride water solution as institute's sulfur-containing oxide and reaction of nitrogen oxides in neutralizer, with exhaust gas；Reaction tank bottom is heavy
Form sediment product-neutral salt of this secondary response；Neutral salt passes through the comb recycling that reaction tank bottom is arranged in.The technical solution is upper
It states in ozone treatment step, hydrogen peroxide treatment step and neutralisation treatment step, exhaust gas passes sequentially through porous plate by flow direction and delimit
3 regions, reaction carried out in space independent；Or above-mentioned ozone treatment and hydrogen peroxide treatment step are in same sky
Between middle progress, neutralization reaction carries out in another space, achieves preferable technical effect, but the process is more complicated, cannot
Well by ship tail gas integrated treatment.
To sum up, the prior art still lack it is a kind of adapt to vessel characteristics, occupy little space, simple process, efficient ship
Vessel exhaust denitration integrated device.
Utility model content
In view of the defects existing in the prior art, first purpose of the utility model is to disclose a kind of use ozone oxygen
Change the technology path for combining wet scrubbing, using strong oxidizing property O3 by the NO that water is insoluble in ship tail gas be oxidized to it is water-soluble compared with
Good high-valence state nitrogen oxides (such as NO2, NO3, N2O5), and realize on the high efficiency tower of single column two-region the integration of SO2 and NOx
Removing.The technical solution of the utility model is as follows:
A kind of ship single column two-region high-efficiency desulfurization denitrification apparatus, including sequentially connected exhaust-gas treatment pipeline and absorption
Tower, exhaust-gas treatment pipeline one end are provided with smoke inlet, and the other end is connected to the absorption tower, set at the top of the absorption tower
It is equipped with exhanst gas outlet, the exhaust-gas treatment pipeline is provided with ozone oxidation unit along smoke movement direction, and the absorption tower is along cigarette
The gas direction of motion is disposed with the first absorptive unit, the second absorptive unit and demisting unit.
Institute sulfur-containing oxide SOx and nitrogen oxide NOx and ozone play oxidation reaction in exhaust gas, and specific reaction equation is as follows:
SO2+O3→SO3+O2
NO+O3→NO2+O2
2NO2+O3→O2+N2O5
After above-mentioned ozone treatment step, exhaust gas enters absorption tower, and the utility model is to use ozone oxidation knot
The technology path for closing wet scrubbing, utilizes strong oxidizing property O3The NO that water is insoluble in ship tail gas is oxidized to water-soluble preferable
High-valence state nitrogen oxides (such as NO2、NO3、N2O5Deng), and SO is realized on the high efficiency tower of single column two-region2With the integration removing of NOx.
When carrying out simultaneous SO_2 and NO removal using NaOH solution, reacting between SO2 and NaOH solution is preferentially carried out, SO2It can be with
NaOH reacts rapidly and generates SO3 2-Ion has very high removal efficiency；But high concentration SO2To NOx in NaOH solution
There are certain inhibiting effect for absorption, and reacting between NOx and NaOH originally there is reaction rate is low, removal efficiency is undesirable etc.
Problem, therefore often discharge SO in flue gas2It can be realized up to standard, but NOx situation up to standard is difficult to ensure.
Therefore, the core of the utility model is that is, the removal SO in being arranged two-region on an absorption tower2Desulfurization zone and
The denitration region of NOx is removed, the desulfurization zone includes the first absorptive unit, and the denitration region includes the second absorptive unit.Two suctions
Unit is received, first with NaOH solution efficient absorption SO2, then utilize desulfurization product Na2SO3Solution denitration, due to Na2SO3Compared with
NaOH shows more preferably reduction effect, therefore the tower desulfurizing and denitrifying process for passing through this subregion, dividing emphasis to NOx, can
Realize higher denitrification efficiency.
Preferably, the ozone oxidation unit include added along the ozone that smoke movement direction is set gradually uniform device,
Mixing chamber, porous cowling panel, oxidation reaction chamber, outlet air hose, the ozone add uniform device and connect with ozone generator；It is described
Porous cowling panel internal diameter is identical as pipeline, percent opening 50-80%, the outlet air hose be in the horizontal direction in 5-15 ° of angle with
The absorb the bottom of the tower connection.
The ozone connecting with ozone generator adds uniform device for O3Rapidly and evenly inversely in injection flue gas；Then,
Mixing chamber strengthens O using porous cowling panel3It mixes with flue gas；Into after oxidation reactor, O3NO in flue gas is oxidized to height
Valence state nitrogen oxides；Finally, the flue gas after oxidation, which is passed through, enters single column from bottom in the outlet air hose of 5-15 ° of angle with horizontal direction
In the high efficiency tower of two-region.Multiple circular apertures, percent opening 50-80%, preferred value 58%, Ke Yigeng are opened on the rectification porous plate
Smooth air-flow well.
Preferably, it includes main pipe, distribution pipe and pipeline outer wall that the ozone, which adds uniform device, the main pipe and distribution pipe
It is fixed on the pipeline outer wall, the distribution pipe is connect with the main pipe square crossing, and by connection short tube connection, described
The tube wall of distribution pipe, which is provided with, equally distributed adds unit；The unit that adds is provided with several nozzles, each nozzle
Front end is vertically installed with disturbance piece.
The main pipe and ozone gas body tied to source, ozone gas main pipe enter distribution pipe, are then entered by distribution pipe and are added
Unit is outwardly launched by adding unit, and ozone adds uniform device and just uniformly adds ozone gas into flue gas.
Preferably, first absorptive unit includes the first packing layer set gradually along smoke movement direction, first
Sodium hydroxide spraying layer and the second sodium hydroxide spraying layer.
First absorptive unit is disposed with packing layer, two layers of sodium hydroxide spraying layer along smoke movement direction, uses
NaOH solution is as absorbent, can be with the alkaline gas and a toxic huge sum of money in efficient absorption ship flue gas using seawater as solvent
Belong to substance.Firstly, seawater is delivered to the first serum pot, and the NaOH provided with NaOH dispensing canister by sea water supply pump after filtering
Solution is mixed, and the NaOH solution (mass concentration 0.5-8%) of certain concentration is formed.NaOH solution passes through first circulation
Pump is transported at the top of the absorptive unit from tower bottom and is sprayed, and by the smooth gas-liquid of the first packing layer below spraying layer point
Cloth increases the gas-liquid contact reaction time, to remove most SO in flue gas2With the NOx of part.First packing layer can
Rectangular saddle ring, Pall ring, cascade ring or the ripple packing of PP or ceramic material are selected, packing layer is with a thickness of 100-200mm.
Preferably, first absorptive unit includes sodium hydroxide slurry circulating pump, the sodium hydroxide slurry circulation
The outlet of pump is connect with the first sodium hydroxide spraying layer and the second sodium hydroxide spraying layer, the sodium hydroxide slurry circulation
The entrance of pump is connect with sodium hydroxide slurry tank, and the sodium hydroxide slurry tank and sodium hydroxide dispensing canister and seawater transfer pump connect
It connects.
This ship treatment process is exploitation formula, directly configures solution, desulfurization product Na2SO3 generated using seawater
Solution drains into the storage of the second serum pot by the first discharge pump outside tower bottom.
Preferably, second absorptive unit includes the cyclone gas hat holder disk set gradually along smoke movement direction,
Two packing layers, the first slurries spraying layer and the second slurries spraying layer.
The core of the utility model, which is single column two-region high efficiency tower, sets that there are two absorptive units along smoke movement direction, with first
The desulfurization product Na of absorptive unit2SO3Solution (mass concentration 0.5-8%) is used as absorbent, further absorbs NOx gas.Through
First absorptive unit is stripped of most of SO2Flue gas, by after spiral board demisting from gas cap enter the second absorptive unit.
Na2SO3Solution is transported to above the absorptive unit from the second serum pot by second circulation pump and is sprayed, and by spraying layer
The smooth gas-liquid distribution of the packing layer of lower section increases the gas-liquid contact reaction time, carries out efficient Reducing and absorption to NOx, and remove residual
The SO2 stayed.Rectangular saddle ring, Pall ring, cascade ring or the ripple packing of PP or ceramic material, institute can be selected in second packing layer
The second packing layer is stated with a thickness of 100-200mm.
Preferably, the cyclone gas hat holder disk is provided with equally distributed cyclone gas cap assembly.
Preferably, second absorptive unit includes slurry circulating pump, the outlet of the slurry circulating pump and the first slurry
Liquid spraying layer and the connection of the second slurries spraying layer, the entrance of the slurry circulating pump are connect with the second serum pot, the cyclone gas
The bottom of hat holder disk is provided with water return outlet, and the water return outlet is connect with second serum pot, second serum pot and first
The outlet of draining pump connects, and the entrance of first draining pump and the tower bottom slurries accumulation regions on the absorption tower are connected by pipeline
Logical, second serum pot is connect with the entrance of the second draining pump, and the outlet of second draining pump is connect with waste liquid storage tank.
Cyclone gas hat holder disk side is equipped with water return outlet, sprayed slurry collected by pallet can be back to second through water return outlet
Serum pot.The slurries of fully reacting are stored by the second discharge pump outlet, can be used as ballast water for ship use.
Preferably, the demisting unit includes mesh mist eliminator.
Flue gas is discharged into the demisting layer at the top of the high efficiency tower of single column two-region from the second absorptive unit, which is equipped with silk screen demisting
(PP, FRP or alloy material, thickness 100-300mm can be selected) in device, for removing the droplet carried secretly in flue gas.
Preferably, further including the axis stream wind being set in the exhaust-gas treatment pipeline, before the ozone oxidation unit
Machine, the axial flow blower front end are additionally provided with heat exchanger.Ship tail gas, which carries out heat exchange by heat exchanger, reduces flue-gas temperature
Afterwards, enter ozone oxidation system through axial flow blower.
The beneficial effects of the utility model have:
(1) the utility model uses the technology path of ozone oxidation combination wet scrubbing, utilizes strong oxidizing property O3By ship
The NO that water is insoluble in tail gas is oxidized to water-soluble preferable high-valence state nitrogen oxides, and it is efficient in subsequent single column two-region to be conducive to it
SO is realized in tower2And NOxIntegrated high-efficiency removing.
(2) reagent solvent is used as using seawater, limited fresh water on ship capable of reducing using, while seawater has centainly
Desulphurizing ability can reduce the dosage of NaOH reagent, increase desulfuration efficiency, reduce the operating cost of device entirety.
(3) the utility model passes through the anti-band liquid function of dehydration of cyclone gas hat holder disk, and absorptive unit point is realized in single column
Area then utilizes desulfurization product Na first with NaOH solution high-efficiency desulfurization2SO3Solution denitration by this subregion, divides emphasis
One tower desulfurizing and denitrifying process can guarantee that desulphurization and denitration efficiency reaches 90% or more.
(4) the utility model technique setting rationally, installation area is small, structure is simple, operation and maintenance are easy, construction at
This is low, can be widely applied to ship tail gas desulphurization denitration.
Detailed description of the invention
Fig. 1 present apparatus process flow diagram；
Fig. 2 ozone adds uniform device structural schematic diagram；
Fig. 3 ozone adds uniform device side view；
Fig. 4 ozone adds the enlarged drawing that uniform device adds unit part；
Fig. 5 cyclone gas hat holder disk partial enlarged view；
Fig. 6 cyclone gas hat holder disk details enlarged drawing；
Appended drawing reference:
Smoke inlet 1, exhaust-gas treatment pipeline 2, absorption tower 3, exhanst gas outlet 4, ozone oxidation unit 5, ozone, which add, to be evenly distributed with
Device 501, mixing chamber 502, porous cowling panel 503, oxidation reaction chamber 504, outlet air hose 505, ozone generator 506, first are inhaled
Receive unit 6, the first packing layer 601, the first sodium hydroxide spraying layer 602, the second sodium hydroxide spraying layer 603, sodium hydroxide slurry
Liquid circulating pump 604, sodium hydroxide slurry tank 605, sodium hydroxide dispensing canister 606, seawater transfer pump 607, the second absorptive unit 7,
Cyclone gas hat holder disk 701, the second packing layer 702, the first slurries spraying layer 703, the second slurries spraying layer 704, slurry circulating pump
705, the second serum pot 706, the second discharge pump 707, waste liquid storage tank 708, water return outlet 709, the first discharge pump 710, demisting list
Member 8, mesh mist eliminator 801, axial flow blower 9, main pipe 10, distribution pipe 11, add unit 12, pipeline outer wall 13, connection short tube 14,
Disturb piece 15, nozzle 16, cyclone gas cap assembly 17.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing:
As shown in Figure 1, a kind of ship single column two-region high-efficiency desulfurization denitrification apparatus, including sequentially connected exhaust-gas treatment pipe
Road 2 and absorption tower 3, described 2 one end of exhaust-gas treatment pipeline are provided with smoke inlet 1, and the other end is connected to the absorption tower 3, institute
It states and is provided with exhanst gas outlet 1 at the top of absorption tower 3, the exhaust-gas treatment pipeline 2 is provided with ozone oxidation list along smoke movement direction
Member 5, the absorption tower is disposed with the first absorptive unit 6, the second absorptive unit 7 and demisting unit along smoke movement direction
8。
The ozone oxidation unit 5 includes adding uniform device 501, mixing chamber along the ozone that smoke movement direction is set gradually
502, porous cowling panel 503, oxidation reaction chamber 504, outlet air hose 505, the ozone add uniform device 501 and ozone generator
506 connections；503 internal diameter of porous cowling panel is identical as pipeline, and percent opening 50-80%, the outlet air hose 505 is in level
Direction is connected in 5-15 ° of angle with the absorb the bottom of the tower.As shown in Figure 2, Figure 3, Figure 4, the ozone adds the packet of uniform device 501
Main pipe 10, distribution pipe 11 and pipeline outer wall 13 are included, the main pipe 10 and distribution pipe 11 are fixed on the pipeline outer wall 103, institute
It states distribution pipe 11 to connect with 10 square crossing of main pipe, and is connected to by connection short tube 14, the tube wall of the distribution pipe 11 is set
It is equipped with and equally distributed adds unit 12；The unit 12 that adds is provided with several nozzles 16, and the front end of each nozzle is vertical
It is provided with disturbance piece 15.
First absorptive unit 6 includes the first packing layer 601, the first hydroxide set gradually along smoke movement direction
Sodium spraying layer 602 and the second sodium hydroxide spraying layer 603.First absorptive unit includes sodium hydroxide slurry circulating pump 604,
The outlet of the sodium hydroxide slurry circulating pump 604 and the first sodium hydroxide spraying layer 601 and the second sodium hydroxide spray
Layer 602 connects, and the entrance of the sodium hydroxide slurry circulating pump 604 is connect with sodium hydroxide slurry tank 605, the hydroxide
Sodium serum pot 605 is connect with sodium hydroxide dispensing canister 606 and seawater transfer pump 607.
As shown in Figure 5 and Figure 6, second absorptive unit 7 includes the eddy flow gas cap set gradually along smoke movement direction
Pallet 701, the second packing layer 702, the first slurries spraying layer 703 and the second slurries spraying layer 704.The cyclone gas hat holder disk
701 are provided with equally distributed cyclone gas cap assembly 17.Second absorptive unit 7 includes slurry circulating pump 705, the slurries
The outlet of circulating pump 705 is connect with the first slurries spraying layer 703 and the second slurries spraying layer 704, the slurry circulating pump 705
Entrance is connect with the second serum pot 706, and the bottom of the cyclone gas hat holder disk 701 is provided with water return outlet 709, the water return outlet
709 connect with second serum pot 706, and second serum pot 706 is connect with the outlet of the first draining pump 710, and described
The entrance of one draining pump 710 is connected to the tower bottom slurries accumulation regions on the absorption tower 2 by pipeline, second serum pot 706
It is connect with the entrance of the second draining pump 707, the outlet of second draining pump 707 is connect with waste liquid storage tank 708.The demisting
Unit 8 includes mesh mist eliminator 801.
Preferably, further including the axis stream wind being set in the exhaust-gas treatment pipeline, before the ozone oxidation unit
Machine, the axial flow blower front end are additionally provided with heat exchanger.Ship tail gas, which carries out heat exchange by heat exchanger, reduces flue-gas temperature
Afterwards, enter ozone oxidation system through axial flow blower.
Application Example
Ship flue gas is handled using the present apparatus, in ozone oxidation system to the oxidation efficiency of NO in ship tail gas up to 90%
Under, it is 2% NaOH solution as absorbent that single column two-region the first uptake zone of high efficiency tower, which uses mass concentration, and the second uptake zone is adopted
The Na for being 1-2% with the first uptake zone desulfurization product, mass concentration2SO3Solution is absorbent, liquid-gas ratio be respectively 2L/m3,
Under the operating condition of 4L/m3, the treatment effect of the present apparatus is as follows:
By upper table data it is found that two absorptive units are arranged on one absorption tower of the utility model, first with NaOH solution
Efficient absorption SO2, then utilize desulfurization product Na2SO3Solution denitration, it is relatively direct to be handled by NaOH, it shows more preferably also
Former effect, therefore the tower desulfurizing and denitrifying process for passing through this subregion, dividing emphasis, can be realized higher denitrification efficiency.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and is modified.Therefore, the utility model is not limited to specific embodiment disclosed and described above, right
Some modifications and changes of utility model should also be as falling into the protection scope of the claims of the present utility model.In addition, although
It is used some specific terms in this specification, these terms are merely for convenience of description, not to the utility model structure
At any restrictions.
Claims (10)
1. a kind of ship single column two-region high-efficiency desulfurization denitrification apparatus, including sequentially connected exhaust-gas treatment pipeline and absorption tower,
Exhaust-gas treatment pipeline one end is provided with smoke inlet, and the other end is connected to the absorption tower, setting at the top of the absorption tower
There is exhanst gas outlet, which is characterized in that the exhaust-gas treatment pipeline is provided with ozone oxidation unit, the suction along smoke movement direction
It receives tower and is disposed with the first absorptive unit, the second absorptive unit and demisting unit along smoke movement direction.
2. a kind of device as described in claim 1, it is characterised in that, the ozone oxidation unit includes along smoke movement direction
The ozone set gradually adds uniform device, mixing chamber, porous cowling panel, oxidation reaction chamber, outlet air hose, and the ozone adds
Cloth device is connect with ozone generator；The porous cowling panel internal diameter is identical as pipeline, percent opening 50-80%, the one's intention as revealed in what one says out
Pipe is connected in 5-15 ° of angle with the absorb the bottom of the tower in the horizontal direction.
3. a kind of device as claimed in claim 2, it is characterised in that, it includes main pipe, distribution pipe that the ozone, which adds uniform device,
And pipeline outer wall, the main pipe and distribution pipe are fixed on the pipeline outer wall, the distribution pipe and the main pipe square crossing
Connection, and by connection short tube connection, the tube wall of the distribution pipe, which is provided with, equally distributed adds unit；It is described to add unit
Several nozzles are provided with, the front end of each nozzle is vertically installed with disturbance piece.
4. a kind of device as described in claims 1 or 2 or 3, it is characterised in that, first absorptive unit includes transporting along flue gas
The first packing layer, the first sodium hydroxide spraying layer and the second sodium hydroxide spraying layer that dynamic direction is set gradually.
5. a kind of device as claimed in claim 4, it is characterised in that, first absorptive unit includes that sodium hydroxide slurry is followed
Ring pump, the outlet of the sodium hydroxide slurry circulating pump and the first sodium hydroxide spraying layer and the second sodium hydroxide spraying layer
Connection, the entrance of the sodium hydroxide slurry circulating pump are connect with sodium hydroxide slurry tank, the sodium hydroxide slurry tank and hydrogen
Sodium oxide molybdena dispensing canister is connected with seawater transfer pump.
6. a kind of device as claimed in claim 5, it is characterised in that, second absorptive unit includes along smoke movement direction
Cyclone gas hat holder disk, the second packing layer, the first slurries spraying layer and the second slurries spraying layer set gradually.
7. a kind of device as claimed in claim 6, it is characterised in that, the cyclone gas hat holder disk is provided with equally distributed rotation
Gas cap assembly.
8. a kind of device as claimed in claim 7, which is characterized in that second absorptive unit includes slurry circulating pump, institute
The outlet for stating slurry circulating pump is connect with the first slurries spraying layer and the second slurries spraying layer, the entrance of the slurry circulating pump with
The connection of second serum pot, the bottom of the cyclone gas hat holder disk are provided with water return outlet, the water return outlet and second serum pot
Connection, second serum pot are connect with the outlet of the first draining pump, entrance and the absorption tower of first draining pump
Tower bottom slurries accumulation regions are connected to by pipeline, and second serum pot is connect with the entrance of the second draining pump, second draining
The outlet of pump is connect with waste liquid storage tank.
9. a kind of device as described in claim 1 or 6 or 8, it is characterised in that, the demisting unit includes mesh mist eliminator.
10. a kind of device as described in claim 1, it is characterised in that, further include be set in the exhaust-gas treatment pipeline, institute
The axial flow blower before ozone oxidation unit is stated, the axial flow blower front end is additionally provided with heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820641671.XU CN208320430U (en) | 2018-04-28 | 2018-04-28 | A kind of ship single column two-region high-efficiency desulfurization denitrification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820641671.XU CN208320430U (en) | 2018-04-28 | 2018-04-28 | A kind of ship single column two-region high-efficiency desulfurization denitrification apparatus |
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| CN208320430U true CN208320430U (en) | 2019-01-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355475A (en) * | 2018-04-28 | 2018-08-03 | 广东佳德环保科技有限公司 | A kind of ship single column two-region high-efficiency desulfurization denitrification apparatus |
| CN110237678A (en) * | 2019-05-28 | 2019-09-17 | 上海蓝魂环保科技有限公司 | A kind of ship tail gas secondary washing sulfur method and secondary washing equipment |
-
2018
- 2018-04-28 CN CN201820641671.XU patent/CN208320430U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355475A (en) * | 2018-04-28 | 2018-08-03 | 广东佳德环保科技有限公司 | A kind of ship single column two-region high-efficiency desulfurization denitrification apparatus |
| CN110237678A (en) * | 2019-05-28 | 2019-09-17 | 上海蓝魂环保科技有限公司 | A kind of ship tail gas secondary washing sulfur method and secondary washing equipment |
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