CN107433113A - A kind of desulphurization denitration absorption tower - Google Patents
A kind of desulphurization denitration absorption tower Download PDFInfo
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- CN107433113A CN107433113A CN201710688408.6A CN201710688408A CN107433113A CN 107433113 A CN107433113 A CN 107433113A CN 201710688408 A CN201710688408 A CN 201710688408A CN 107433113 A CN107433113 A CN 107433113A
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- Prior art keywords
- denitration
- chamber
- pipe
- distributor
- desulfurization
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/606—Carbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
- B01D2252/103—Water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/12—Methods and means for introducing reactants
- B01D2259/124—Liquid reactants
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of desulphurization denitration absorption tower, including tower body, it is embedded in the tower body and is fixed with distributor, tower body is separated into the denitration chamber above distributor and the desulfurization chamber below distributor by the distributor, the desulfurization chamber lower end is connected with air inlet pipe, the first spray equipment for spraying desulfuration solution is installed with the desulfurization chamber, is provided with the second spray equipment for being used for spraying denitration solution in the denitration chamber, the denitration chamber upper end is connected with blast pipe.Absorption tower can carry out desulfurization and denitration process to waste gas simultaneously, be not required to individually carry out desulfurization and denitration process to waste gas, so as to improve exhaust treatment efficiency, and reduce the whole device occupied area of processing waste gas.
Description
Technical field
The present invention relates to emission-control equipment, and in particular to a kind of desulphurization denitration absorption tower.
Background technology
Absorption tower is a kind of equipment for being used to carry out industrial waste gas desulfurization or denitration process.
Such as the patent of Application No. 201621232556.4, it which disclose a kind of wet desulphurization absorption tower and carry effect dress
Put, including spraying layer group and the Liqiud-gas mixing device that mixes compressed gas with loop slurry;Spraying layer is mounted on absorption tower body
Inner top, spraying layer group include multiple spraying layers, and each spraying layer is by a shower and the multiple sprays being arranged on shower
Drench head composition;Liqiud-gas mixing device connects outside absorption tower body with shower.
Loop slurry is supported the front into shower, is initially injected compressed gas, is fully mixed both by Liqiud-gas mixing device
Close, then sprayed into by shower, spray head in absorption tower body, flue gas is reacted, removes the sulfur dioxide in waste gas, is completed
To the desulfurization process of waste gas.
But in actual production, waste gas typically needs desulfurization also to need denitration, and existing absorption tower can only be individually to waste gas
Carry out desulfurization or denitration process, it is impossible to meet actual demand.Need to connect multiple absorption towers in actual use to carry out waste gas
Desulfurization and denitration, the processing route of waste gas is longer, causes its treatment effeciency relatively low, and handles the whole device floor space of waste gas
It is larger.Therefore it is badly in need of a kind of absorption tower that can carry out desulfurization and denitration to waste gas simultaneously of research and development.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of desulphurization denitration absorption tower, absorption tower
The desulfurization and denitration to waste gas can be completed, improves exhaust treatment efficiency.
To achieve the above object, the invention provides following technical scheme:
A kind of desulphurization denitration absorption tower, including tower body, it is embedded in the tower body and is fixed with distributor, gas can pass through the distribution
Device, and tower body can not be separated into denitration chamber and position above distributor by liquid by the distributor, the distributor
Desulfurization chamber below distributor, the desulfurization chamber lower end are connected with air inlet pipe, are installed with the desulfurization chamber de- for spraying
First spray equipment of sulphur solution, the denitration chamber is interior to be provided with the second spray equipment for being used for spraying denitration solution, the denitration
Room upper end is connected with blast pipe.
By using above-mentioned technical proposal, waste gas enters in desulfurization chamber from air inlet pipe, and the first spray equipment sprays towards waste gas
Desulfuration solution, the sulfur dioxide in waste gas is reacted with desulfuration solution, complete the desulfurization of waste gas.The waste gas of desulfurization is completed by dividing
Cloth device is entered in denitration chamber, and the second spray equipment sprays denitration solution towards waste gas, makes nitrogen oxides in waste gas and denitration molten
Liquid reacts, and completes the denitration of waste gas, then discharges tower body from blast pipe.I.e. absorption tower can carry out desulfurization and denitration to waste gas simultaneously
Processing, it is not required to individually carry out desulfurization and denitration process to waste gas, so as to improve exhaust treatment efficiency, and reduces processing waste gas
Whole device occupied area.
The further setting of the present invention is:First spray equipment includes the spray being fixed in the horizontal direction in tower body
Web plate, the connecting tube for spraying web plate, the first feed tube entered for desulfuration solution in desulfurization chamber are given for feed flow and for discharge opeing
The first discharging tube, first feed tube and the first discharging tube are connected on tower body and equal first feed tube and the first discharging tube
Valve is equipped with, the connecting tube connection sprays web plate and connecting tube lower end connection tower body lower end, the connecting tube are provided with and taken out
Liquid pump.
By using above-mentioned technical proposal, desulfuration solution is entered in desulfurization chamber by the first feed tube, then passes through connection
Desulfuration solution is introduced spray web plate by pipe, and spray desulfurization is carried out to waste gas.Sweetening liq after spray is fallen into desulfurization chamber, is continued
Entered by connecting tube in spray web plate, so circulation, complete the desulfurization to waste gas.
When the acid-base value in desulfurization chamber exceedes preset value, the active ingredient in desulfuration solution in machine desulfurization chamber is very few,
It is not enough to support exhuast gas desulfurization.Therefore timing is needed by the first discharging tube discharge opeing, then pass through the first feed tube feed liquor, it is ensured that desulfurization chamber
There is enough active ingredient in interior desulfuration solution, to ensure being normally carried out for desulfurization.
The further setting of the present invention is:The spray web plate is axially arranged with several along tower body, on the spray web plate
It is evenly distributed with some first screw spraying heads.
It is by the first screw spraying head that desulfuration solution spray is throughout the room to desulfurization by using above-mentioned technical proposal,
It is set to improve desulfuration efficiency fully in exhaust gas contact.
The further setting of the present invention is:The tower body side is provided with the liquid reserve tank for being used for saving denitration solution, the storage
Feed pipe is provided between liquid case and the second spray equipment, the feed pipe is equipped with valve.
By using above-mentioned technical proposal, by feed pipe feed liquor, so as to control the pH value in denitration chamber.Simultaneously by the
One feed tube feed liquor and the first discharging tube go out liquid, can control the pH value in desulfurization chamber, are in denitration reaction and desulphurization reaction
In proper environment, its denitrification efficiency is improved.
The further setting of the present invention is:Denitration solution is ammonium chloride solution, and desulfuration solution is calcium carbonate soln, described de-
Sulphur room pH value is 5.5 ~ 5.6, and the denitration chamber pH value is 9.1 ~ 9.2.
By using above-mentioned technical proposal, so that denitration reaction and desulphurization reaction are in proper environment, it is improved
Denitrification efficiency.Calcium sulfate can be generated after calcium carbonate and sulfur dioxide reaction simultaneously, and calcium sulfate is the main of making gypsum
Composition and not soluble in water, easily can be recycled to it, reduce secondary pollution.
The further setting of the present invention is:Second spray equipment includes fixed in the horizontal direction be embedded in denitration chamber
Undertake the bubbling pond of clear water, the second screw spraying head for introducing exhaust gas into the air entraining pipe in bubbling pond, being installed on bubbling bottom of pond face,
The communicating pipe for connecting the second screw spraying head, the second feed tube entered for clear water in bubbling pond and for denitration chamber discharge opeing the
Two discharging tubes, the second discharging tube connection denitration chamber outer wall and bubbling pond side wall, and second feed tube and the second discharge opeing
Valve is equipped with pipe, described communicating pipe one end is connected to feed pipe and the other end is set in closing.
By using above-mentioned technical proposal, ammonia is can absorb by clear water in bubbling pond, reduces the leakage of ammonia.Denitration is molten
Liquid is sprayed in denitration chamber by the second screw spraying head, completes the denitration to gas.
The further setting of the present invention is:The denitration chamber madial wall is provided with atomising head, and the atomising head is provided with some
It is individual and be connected to communicating pipe.
It is by atomising head that denitration solution spraying is throughout the room to denitration by using above-mentioned technical proposal, it is filled
Divide in exhaust gas contact, improve denitration efficiency.
The further setting of the present invention is:The air entraining pipe upper end is set in closing, and the air entraining pipe side wall is radially
Provided with some distributor pipes, the distributor pipe is connected with bubbler away from air entraining pipe one end, and the bubbler is located in bubbling pond.
By using above-mentioned technical proposal, the gas after denitration chamber denitration is passed through in bubbling pond by bubbler,
Gas and clear water is set fully to contact, so as to improve the clearance of ammonia.
The further setting of the present invention is:Demister is provided with the blast pipe, the demister includes some pieces mutually
The blade of connection, the blade are provided with some pieces in cosine-shaped and along its crest direction, and the bending width of the blade is 50mm,
Outer wall is provided with barb at the blade crest, and the barb opening is towards at the crest of blade, and the barb is back to blade crest
Side upper end is provided with the baffle plate for tilting upward setting.
By using above-mentioned technical proposal, when the bending width of blade is 50mm, the pressure drop in demister exit remains unchanged
Can be in tolerance range, while the demisting efficiency highest of demister.
Baffle plate is changed the direction of motion of air-flow, so as to add the disturbance situation of flue gas, and adds cigarette
The fluid area of gas, make the distribution situation in exit more uniform, reduce the pressure drop in demister.By baffle plate by part liquid
Drop at baffle plate and be blocked, improve the demisting efficiency of demister, reduce the probability of the escaping of ammonia.
The present invention has advantages below:Desulfurization and denitration can be carried out to waste gas simultaneously, improve the efficiency to exhaust-gas treatment,
Reduce the floor space needed for processing waste gas simultaneously;The probability of the escaping of ammonia is low in processing procedure.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment;
Fig. 2 is the structural representation of distributor in embodiment;
Fig. 3 is the structural representation of demister in embodiment;
Fig. 4 is the sectional view of demister in embodiment.
Reference:1st, tower body;2nd, distributor;2.1st, air distribution plate;2.2nd, blast cap;2.3rd, air vent;2.4th, waterproof and breathable
Film;3rd, denitration chamber;4th, desulfurization chamber;5th, air inlet pipe;6th, the first spray equipment;6.1st, web plate is sprayed;6.2nd, connecting tube;6.3rd, first
Feed tube;6.4th, the first discharging tube;6.5th, drawing liquid pump;7th, the first screw spraying head;8th, liquid supply box;9th, the second spray equipment;
9.1st, bubbling pond;9.2nd, air entraining pipe;9.3rd, the second screw spraying head;9.4th, communicating pipe;9.5th, the second feed tube;9.6th, second row
Liquid pipe;9.6.1, first pipe;9.6.2, second pipe;10th, distributor pipe;11st, bubbler;12nd, atomising head;13rd, clear water reserviors;14th, store up
Liquid case;15th, feed pipe;16th, demister;17th, blade;18th, connecting plate;19th, barb;20th, baffle plate;21st, blast pipe.
Embodiment
The present invention will be further described referring to the drawings.
As shown in figure 1, a kind of desulphurization denitration absorption tower, including tower body 1, it is embedded in tower body 1 and is fixed with distributor 2.Such as Fig. 2
Shown, distributor 2 includes air distribution plate 2.1 and blast cap 2.2, and blast cap 2.2 is fixed on air distribution plate 2.1, and the inner chamber of blast cap 2.2 connection cloth
Aerofoil 2.1, the side wall of blast cap 2.2 offer the air vent 2.3 of connection blast cap 2.2 inner chamber.Waterproof ventilated membrane is provided with air vent 2.3
2.4。
As shown in figure 1, tower body 1 is separated into for the denitration chamber 3 to exhaust gas denitration and for exhuast gas desulfurization by distributor 2
Desulfurization chamber 4, denitration chamber 3 is located at the top of distributor 2, and desulfurization chamber 4 be located at below distributor 2.
As shown in figure 1, the lower end of desulfurization chamber 4 is provided with air inlet pipe 5.The first spray equipment 6, the first spray are provided with desulfurization chamber 4
Device 6 includes spray web plate 6.1, connecting tube 6.2, the first feed tube 6.3, the first discharging tube 6.4 and drawing liquid pump 6.5.Spraying net
Plate 6.1 is installed in desulfurization chamber 4 along tower body 1 is radially fixed, and is sprayed web plate 6.1 and be axially arranged with some pieces along it.Spray web plate
Some first screw sprayings first 7 are evenly distributed with 6.1.
As shown in figure 1, the one end of connecting tube 6.2 is set in closing, and other end connection desulfurization chamber 4 lower end, connecting tube 6.2 connect
Logical all spray web plates 6.1.Drawing liquid pump 6.5 is installed in connecting tube 6.2.First feed tube 6.3 and the first discharging tube 6.4 connect
Lead to the bottom side of the wall of desulfurization chamber 4, valve is equipped with the first feed tube 6.3 and the first discharging tube 6.4.First feed tube 6.3 back to
The one end of tower body 1 is connected with liquid supply box 8, is provided with desulfuration solution in liquid supply box 8, desulfuration solution is calcium carbonate.Desulfurization chamber 4PH values are
5.5~5.6。
As shown in figure 1, being provided with the second spray equipment 9 in denitration chamber 3, the second spray equipment 9 includes bubbling pond 9.1, bleed
Pipe 9.2, the second screw spraying are first 9.3, communicating pipe 9.4, the second feed tube 9.5 and the second discharging tube 9.6.Bubbling pond 9.1 is along de-
Nitre room 3 is radially fixed to be installed in denitration chamber 3, and is provided with clear water in bubbling pond 9.1.Air entraining pipe 9.2 is vertically set, and
The upper end of air entraining pipe 9.2 is set in closing.The side wall of air entraining pipe 9.2 is radially provided with some distributor pipes 10, and distributor pipe 10 is remote to be drawn
The one end of tracheae 9.2 is connected with bubbler 11, and bubbler 11 is located in bubbling pond 9.1.The lower end of air entraining pipe 9.2 is fed through bubbling pond
9.1 bottom surfaces and it is fixed on bubbling pond 9.1.
As shown in figure 1, the bottom surface of bubbling pond 9.1 is provided with the second screw spraying first 9.3, communicating pipe 9.4 the second spiral is connected
Spray head 9.3.The madial wall of denitration chamber 3 is provided with atomising head 12, and atomising head 12 is provided with several and is connected to communicating pipe 9.4.The
The side wall of two feed tubes, 9.5 one end bubbling pond 9.1, and the other end is connected with clear water reserviors 13, and water also is provided with the second feed tube 9.5
Pump.It is in charge of into the first pipe 9.6.1 and the second pipe 9.6.2, the first pipe 9.6.1 and 9.6.2 points of the second pipe in the one end of second discharging tube 9.6
Lian Tong not the side wall of denitration chamber 3 and the side wall of bubbling pond 9.1.It is all provided with first pipe 9.6.1, the second pipe 9.6.2 and the second feed tube 9.5
There is valve.
As shown in figure 1, the side of tower body 1 is provided with liquid reserve tank 14, denitration solution is provided with liquid reserve tank 14, denitration solution is chlorination
Ammonium salt solution.Feed pipe 15 is connected with liquid reserve tank 14, feed pipe 15 is provided with valve.Communicating pipe 9.4, one end was connected to feed pipe
15 and the other end in closing set.Communicating pipe 9.4 is provided with drawing liquid pump 6.5 and valve.Denitration chamber 3PH values are 9.1 ~ 9.2.
As shown in figure 1, the upper end of denitration chamber 3 is connected with blast pipe 21, blast pipe 21 is located at the top of bubbling pond 9.1, blast pipe
Demister 16 is provided with 21.As shown in Figure 3 and Figure 4, demister 16 includes some pieces of blades 17, blade 17 in cosine-shaped and along its
Crest direction is provided with some pieces at equal intervals.Spacing between adjacent two pieces of blades 17 is 30mm, and the upper and lower end face of blade 17 is fixed
There is the connecting plate 18 for connecting all blades 17.The bending width of blade 17 is 50mm.Outer wall is provided with the crest of blade 17
Hook 19, barb 19 are open towards at the crest of blade 17, and the length of barb 19 is 22mm.Barb 19 is back on the crest side of blade 17
End is provided with the baffle plate 20 for tilting upward setting.
The operation principle on the absorption tower is as follows:
1st, waste gas is entered in desulfurization chamber 4 from air inlet pipe 5, and the first screw spraying first 7 arrives desulfuration solution spray in desulfurization chamber 4,
Sulfur dioxide and desulfuration solution reaction in waste gas, complete exhuast gas desulfurization;
The desulfuration solution that first screw spraying first 7 sprays out is flowed into desulfurization chamber 4, and spray web plate 6.1 is introduced by connecting tube 6.2
It is interior, go successively to the first screw spraying first 7 and sprayed;
After circulating a period of time, by the feed liquor of the first feed tube 6.3 and the discharge opeing of the first discharging tube 6.4, to change in desulfurization chamber 4
Desulfuration solution, make the pH value in desulfurization chamber 4 stable 5.5 ~ 5.6;
2nd, the waste gas by desulfurization in the presence of distributor 2 even into denitration chamber 3, the second screw spraying first 9.3 and atomization
First 12, by denitration solution spraying to denitration chamber 3, nitrogen oxides and the projection of denitration solution in waste gas, complete exhaust gas denitration;
By the feed liquor of the second feed tube 9.5 and the first pipe 9.6.1 discharge opeings, to change the denitration solution in denitration chamber 3, make desulfurization chamber
PH value in 4 is stable 9.1 ~ 9.2;
3rd, the waste gas by denitration is entered in the clear water in bubbling pond 9.1 by air entraining pipe 9.2 and bubbler 11, is removed in waste gas
Ammonia, tower body 1 is then discharged by blast pipe 21 after demister 16, completes the purification of waste gas.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of desulphurization denitration absorption tower, including tower body(1), it is characterized in that:The tower body(1)Inside it is embedded and is fixed with distributor
(2), gas can pass through the distributor(2), and liquid can not pass through the distributor(2), the distributor(2)By tower body
(1)It is separated into and is located at distributor(2)The denitration chamber of top(3)With positioned at distributor(2)The desulfurization chamber of lower section(4), the desulfurization
Room(4)Lower end is connected with air inlet pipe(5), the desulfurization chamber(4)Inside it is installed with the first spray equipment for spraying desulfuration solution
(6), the denitration chamber(3)It is interior to be provided with the second spray equipment for being used for spraying denitration solution(9), the denitration chamber(3)Upper end connects
It is connected to blast pipe(21).
2. a kind of desulphurization denitration absorption tower according to claim 1, it is characterized in that:First spray equipment(6)Including
Tower body is fixed in the horizontal direction(1)Interior spray web plate(6.1), for feed flow to spray web plate(6.1)Connecting tube
(6.2), for desulfuration solution enter desulfurization chamber(4)The first interior feed tube(6.3)With the first discharging tube for discharge opeing(6.4),
First feed tube(6.3)With the first discharging tube(6.4)Connect tower body(1)And equal first feed tube(6.3)And first row
Liquid pipe(6.4)On be equipped with valve, the connecting tube(6.2)Connection spray web plate(6.1)And connecting tube(6.2)Lower end connects tower
Body(1)Lower end, the connecting tube(6.2)It is provided with drawing liquid pump(6.5).
3. a kind of desulphurization denitration absorption tower according to claim 2, it is characterized in that:The spray web plate(6.1)Along tower body
(1)It is axially arranged with several, the spray web plate(6.1)On be evenly distributed with some first screw spraying heads(7).
4. a kind of desulphurization denitration absorption tower according to claim 3, it is characterized in that:The tower body(1)Side, which is provided with, to be used for
Save the liquid reserve tank of denitration solution(14), the liquid reserve tank(14)With the second spray equipment(9)Between be provided with feed pipe(15), institute
State feed pipe(15)It is equipped with valve.
5. a kind of desulphurization denitration absorption tower according to claim 4, it is characterized in that:Denitration solution is ammonium chloride solution, is taken off
Sulphur solution is calcium carbonate soln, the desulfurization chamber(4)PH value is 5.5 ~ 5.6, the denitration chamber(3)PH value is 9.1 ~ 9.2.
6. a kind of desulphurization denitration absorption tower according to claim 5, it is characterized in that:Second spray equipment(9)Including
It is fixed in the horizontal direction to be embedded at denitration chamber(3)Inside undertake the bubbling pond of clear water(9.1), introduce exhaust gas into bubbling pond(9.1)
Air entraining pipe(9.2), be installed on bubbling pond(9.1)Second screw spraying head of bottom surface(9.3), connection the second screw spraying head
(9.3)Communicating pipe(9.4), for clear water enter bubbling pond(9.1)The second interior feed tube(9.5)With for denitration chamber(3)Row
Second discharging tube of liquid(9.6), second discharging tube(9.6)Connect denitration chamber(3)Outer wall and bubbling pond(9.1)Side wall, and
Second feed tube(9.5)With the second discharging tube(9.6)On be equipped with valve, the communicating pipe(9.4)One end is connected to confession
Liquid pipe(15)And the other end is set in closing.
7. a kind of desulphurization denitration absorption tower according to claim 6, it is characterized in that:The denitration chamber(3)Madial wall is installed
There is atomising head(12), the atomising head(12)Provided with several and it is connected to communicating pipe(9.4).
8. a kind of desulphurization denitration absorption tower according to claim 7, it is characterized in that:The air entraining pipe(9.2)Upper end is in envelope
Close setting, the air entraining pipe(9.2)Side wall is radially provided with some distributor pipes(10), the distributor pipe(10)Away from air entraining pipe
(9.2)One end is connected with bubbler(11), the bubbler(11)Positioned at bubbling pond(9.1)It is interior.
9. a kind of desulphurization denitration absorption tower according to claim 8, it is characterized in that:The blast pipe(21)It is interior to be provided with demisting
Device(16), the demister(16)Include the blade of some pieces of interconnections(17), the blade(17)In cosine-shaped and along its
Crest direction is provided with some pieces, the blade(17)Bending width be 50mm, the blade(17)Outer wall is provided with crest
Hook(19), the barb(19)It is open towards blade(17)Crest at, the barb(19)Back to blade(17)Crest side
Upper end is provided with the baffle plate for tilting upward setting(20).
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109985477A (en) * | 2019-03-14 | 2019-07-09 | 赵德华 | Exhaust gas spray cleaning processing unit |
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CN107998761A (en) * | 2017-12-12 | 2018-05-08 | 唐山伟德船用设备有限公司 | A kind of marine exhaust desulfurizer and method |
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