CN107261778A - A kind of flue gas high-efficiency desulfurization equipment and processing method - Google Patents
A kind of flue gas high-efficiency desulfurization equipment and processing method Download PDFInfo
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- CN107261778A CN107261778A CN201710462224.8A CN201710462224A CN107261778A CN 107261778 A CN107261778 A CN 107261778A CN 201710462224 A CN201710462224 A CN 201710462224A CN 107261778 A CN107261778 A CN 107261778A
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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
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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
- B01D53/346—Controlling the process
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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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
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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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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Abstract
The invention discloses a kind of flue gas high-efficiency desulfurization equipment, including air inlet pipe, reative cell, spray chamber, the escape pipe being arranged at the top of spray chamber；Spray chamber bottom is that can be back to the inclined-plane of reative cell for liquid；Hydraulic cylinder is installed at the top of reative cell, hydraulic motor, agitating paddle and seal cover board are installed on its piston rod；Reative cell bottom is splendid attire calcium hydroxide saturated solution, the reaction tank in reverse frustoconic, reaction tank liquid level is arranged with three road annular grooves, wherein equal air drain is connected with air inlet pipe, is gone out liquid fluid-uniformly mixing groove and is connected by spray pump with spray equipment, feed liquor fluid-uniformly mixing groove is connected by filling pipe with solution pool；Reaction tank bottom is connected with by the scum pipe of deslagging solenoid valve control.The invention also discloses its processing method.The present invention has the advantages that to react that simple and reliable, equipment is reliable, desulfuration efficiency up to 95% 98%, the smaller, power consumption of corrosion it is extremely low, can unattended operation, operation and maintenance cost be low and non-secondary pollution.
Description
Technical field
The present invention relates to field of Environment Protection, more particularly to a kind of flue gas desulfurization device and processing method.
Background technology
Desulfurization, refers to the desulfuration process before the sulphur content and flue gas emissions sloughed before burning in fuel.It is preventing and treating air
One of important technique measure of pollution.Current sulfur method typically has before burning, burning neutralizes three kinds of desulfurization etc. after burning.With
Industrial expansion and the improvement of people's living standards, the craving to the energy are also continuously increased, and the sulfur dioxide in coal-fired flue-gas is
Through the main cause as atmosphere pollution.Reduce sulfur dioxide pollution has turned into the task of top priority that current atmospheric environment is administered.No
Few flue gas desulfurization technique extensive use in the industry, its improvement to all kinds of boilers and tail gas from incinerator also has important
Realistic meaning.
Desulfurization, also known as flue gas desulfurization (Flue gas desulfurization, abbreviation FGD), in FGD skills after wherein burning
In art, divided by the species of desulfurizing agent, traditional is divided into following five kinds of methods：Calcium method based on CaCO3 (lime stone),
Magnesium processes based on MgO, the sodium method based on Na2SO3, the ammonia process based on NH3 is organic based on organic base
Alkaline process.The commercial technologies that universal desulfurization is used in the world are calcium methods, and proportion is more than 90%.Produced by absorbent and desulfurization
Desulfurization technology can be divided into wet method, dry method and half-dried (semi-moist) method by dry and wet state of the thing in sweetening process again.Wet FGD technology
It is that desulfurization has desulphurization reaction speed with desulfurization product, the method is handled under wet condition with solution or slurries containing absorbent
Hurry up, equipment is simple, desulfuration efficiency high (reaching as high as 90%) the advantages of, but generally existing seriously corroded, operation and maintenance cost are high
And easily cause secondary pollution problems.
Above-mentioned calcium method (lime stone --- gypsum sulfur removal technology) is most widely used a kind of wet desulphurization in the world
Technology, the flue gas desulfurization device about 90% that Japan, Germany, the thermal power plant in the U.S. are used uses this technique.Its work is former
Reason is：Agstone is added water be made slurries as absorbent be pumped into absorption tower fully contacted with flue gas in mixing, flue gas two
The air that sulfur oxide is blasted with the calcium carbonate in slurries and from tower bottom carries out oxidation reaction generation calcium sulfate, and calcium sulfate reaches
After certain saturation degree, crystallization forms dihydrate gypsum.The gypsum slurries discharged through absorption tower are concentrated, dehydration, make its water content small
In 10%, the stacking of gypsum bunker is then delivered to conveyer, the flue gas after desulfurization removes droplet by demister, then by heat exchange
After device heat temperature raising, air is discharged into by chimney.Because absorption tower inner absorbent slurries are connect by circulating pump iterative cycles and flue gas
Touch, absorbent utilization rate is very high, and calcium sulfur ratio is relatively low, desulfuration efficiency can be more than 95%.The advantage of gypsum is technical maturity, is applicable
In the unit of different capabilities, application is most wide, and desulfurizing agent is using fully, and desulfuration efficiency is up to more than 95%, to unit capacity
Unrestrictedly.The desulfurizing agent abundance of gypsum, price is relatively low, and by-produced gypsum Utilization prospects are preferable；Weak point is system
More complicated, floor space is big, and initial cost and station service are higher, need to typically carry out wastewater treatment.
Dual alkali is also the popular research hot topic of current desulfurization technology, and desulfurization in tower is carried out using sodium base desulfurizer, due to
Sodium base desulfurizer alkalescence is strong, and reaction product solubility is big after sulfur dioxide absorption, does not result in supersaturated crystallization, causes fouling to block up
Plug problem.Another aspect desulfurization product is discharged into regenerated reactor and carries out reducing/regenerating with calcium hydroxide, the sodium base desulfurization regenerated
Desulfurizing tower recycling is returned in agent again.Double alkali method desulfurizing technology reduces investment and operating cost, is relatively specific for middle-size and small-size
Boiler carries out desulfurizing fly ash.Dual alkali scrubbing FGD process technology is, by the use of sodium hydroxide solution as desulfurizing agent is started, to prepare
Sodium hydroxide solution directly squeezes into desulfurizing tower washing removing sulfur dioxide in flue gas to reach the purpose of flue gas desulfurization, then desulfurization
Product is reduced into sodium hydroxide through desulfurizer regeneration pond to be returned desulfurizing tower interior circulation and uses again.Sulfur removal technology mainly includes 5 portions
Point：(1) absorbent is prepared and supplement；(2) absorbent slurry is sprayed；(3) droplet is mixed with smoke contacts in tower；(4) regenerated reactor
Slurries reduce sodium base alkali；(5) gypsum dehydration is handled.But, its occupation of land is larger, reacts many in operation, uncontrollable factor increases, instead
The automaticity answered is low, it is necessary to artificial pays close attention to and control, and desulfurization 90% or so, not enough thoroughly.
The content of the invention
To solve drawbacks described above present in prior art, the present invention is intended to provide a kind of single use aqua calcis
Progress desulfurization process, the simple and reliable, equipment of reaction are reliable, desulfuration efficiency is up to 95%-98%, the smaller, power consumption of corrosion
It is extremely low, can unattended operation, operation and maintenance cost be low and flue gas high-efficiency desulfurization equipment of non-secondary pollution and processing method.
To achieve these goals, the present invention uses following technical scheme：A kind of flue gas high-efficiency desulfurization equipment, including air inlet
Pipe, desulphurization system, escape pipe；The desulphurization system includes reative cell and the spray chamber of rear end；The height of spray chamber is higher than reaction
Room, bottom is that can be back to the inclined-plane of reative cell for liquid；Hydraulic cylinder is installed at the top of reative cell, its underpart of the piston rod is suit
In outside hydraulic motor, below hydraulic motor and fixed seal cover board on the piston rod, it is sleeved on hydraulic motor
Agitating paddle；Hydraulic cylinder and hydraulic motor are connected with hydraulic system by oil circuit；Satisfy to contain calcium hydroxide reative cell bottom
With solution, in the reaction tank of reverse frustoconic, there are three road annular grooves liquid level is arranged below inside reaction tank, be respectively arranged on close
Equal air drain above the seal line of capping plate and reaction pool wall, go out liquid fluid-uniformly mixing groove and the feed liquor of lower section goes out liquid fluid-uniformly mixing groove, equal air drain
It is connected with air inlet pipe, goes out liquid fluid-uniformly mixing groove and feed liquor goes out liquid fluid-uniformly mixing groove for step trough, the big end for being close to pool wall is provided with filter screen, goes out liquid
Fluid-uniformly mixing groove small end is connected by spray pump with the spray equipment positioned at spray chamber top, and feed liquor goes out liquid fluid-uniformly mixing groove small end and passes through moisturizing
Pipe is connected with solution pool；Reaction tank bottom is connected with by the scum pipe of deslagging solenoid valve control；The escape pipe is arranged on spray
The top of room.
A kind of above-mentioned flue gas high-efficiency desulfurization equipment, wherein：Also include being arranged on removing between air inlet pipe and desulphurization system
Dirt device.
A kind of above-mentioned flue gas high-efficiency desulfurization equipment, wherein：The deduster is wet electrical dust precipitator.
A kind of above-mentioned flue gas high-efficiency desulfurization equipment, wherein：Check valve is provided between the deduster and desulphurization system.
A kind of above-mentioned flue gas high-efficiency desulfurization equipment, wherein：The edge cross-section of the seal cover board is circular arc.
A kind of above-mentioned flue gas high-efficiency desulfurization equipment, wherein：Internal be provided with is installed below the spray equipment
The flue gas buffering mechanism of some spiral flues.
A kind of above-mentioned flue gas high-efficiency desulfurization equipment, wherein：It is additionally provided with control hydraulic cylinder, hydraulic motor, deslagging electromagnetism
Valve sequence starting and the PLC control system closed.
A kind of above-mentioned flue gas high-efficiency desulfurization equipment, comprises the following steps：
1) flue gas enters deduster, and solid dust is removed；
2) flue gas after dedusting enters the reaction tank of calcium hydroxide saturated solution by check valve, equal air drain, and bubble is molten
Stirring action is played in liquid in itself, add hydraulic motor drive agitating paddle strong stirring, sulfur dioxide in flue gas gas with
Calcium hydroxide saturated solution reaction generation calcium sulfite precipitation, to bottom deposit；Most sulfur dioxide are removed in flue gas；
3) calcium hydroxide saturated solution is by going out liquid fluid-uniformly mixing groove and spray pump is drawn into spray equipment, spray equipment keep to
Lower spray；The flue gas of nubbin sulfur dioxide enters spray chamber, and passes through some spiral flues of flue gas buffering mechanism, speed
Degree is greatly diminished, and is fully reacted with the calcium hydroxide in spray solution, sediment brings reaction tank into by ejecting liquid；
4) PLC control system is according to preset time, and timing closes hydraulic motor, starts hydraulic cylinder, and piston rod is extended downwardly from,
Seal cover board is pressed in reaction pool wall, basic guarantee sealing；PLC control system hydraulic cylinder in place after, at preset timed intervals
Start deslagging magnetic valve, the solution increase internal pressure that filling pipe constantly injects, by calcium sulfite precipitation press-in scum pipe；PLC
Deslagging magnetic valve is closed in control system control, while controlling hydraulic cylinder retraction, seal cover board rises；Filling pipe constantly injects solution
Into reaction tank.
Compared with prior art, the present invention has advantages below：Calcium hydroxide saturated solution is because the solubility of solute
Less, so the corrosion to equipment is smaller；And it is flowable, the material circulation than traditional calcium method and magnesium processes is more smoothly；Solution
The middle subsidiary strong stirring of ventilation, removes a sulfur dioxide, about 70-85%, spray is removed once again, and overall desulfurization efficiency is about
95%-98%, and desulfurization product integrated treatment twice, the simple easy care of equipment；Stir as liquid upper, because seal cover board
Ingenious to cover, lower liquid is not stirred substantially, therefore precipitation is able in congregate, and only when hydraulic motor stops stirring
When, seal cover board just declines sealing, therefore the precipitation of bottom can be discharged totally in each circulation substantially；It is inside reative cell
The end of hydraulic system, control section in outside, stable and reliable operation, and be affected by temperature it is small, than baric systerm and electrically
System is more reliable；Equal air drain and feed liquor fluid-uniformly mixing groove, the effect for going out liquid fluid-uniformly mixing groove are all ventilation and logical liquid level is accumulated increase, increase
Hoard, it is to avoid block；The addition of seal cover board, makes the product of each circulation time discharge in time, it is to avoid block；Pass through filling pipe
Continuous water filling, act as moisturizing under the conditions of unsealing, it is to avoid solute consumption influence reaction speed in solution, and in air-proof condition
Under act as ftercompction and flushing, be easy to deslagging；Flue gas buffering mechanism makes flue gas react more abundant in ejecting liquid；Check valve
Liquid generation back suction enters deduster in reaction tank when setting avoids flue gas for negative pressure；PLC system makes whole system more intelligent,
Guarantee is unattended can be also smoothed out.
Brief description of the drawings
Accompanying drawing is the system architecture simplified schematic diagram of the present invention.
In figure：Solution pool 1, filling pipe 2, air inlet pipe 3, deduster 4, reative cell 5, calcium hydroxide saturated solution 6, hydraulic cylinder
7th, hydraulic motor 8, hydraulic system 9, agitating paddle 10, escape pipe 11, spray equipment 12, flue gas buffering mechanism 13, spray chamber 14, spray
Drench pump 15, check valve 16, equal air drain 17, go out liquid fluid-uniformly mixing groove 18, feed liquor fluid-uniformly mixing groove 19, seal cover board 20, calcium sulfite precipitation 21,
Filter screen 22, scum pipe 23, deslagging magnetic valve 24, deslagging pond 25.
Embodiment
Embodiment 1：
As shown in drawings, a kind of flue gas high-efficiency desulfurization equipment, including air inlet pipe 3, be arranged in air inlet gas circuit wet type electricity
Deduster 4 and check valve 16, desulphurization system, escape pipe 11；The desulphurization system includes reative cell 5 and the spray chamber 14 of rear end；
The height of spray chamber 14 is higher than reative cell 5, and bottom is that can be back to the inclined-plane of reative cell 5 for liquid；The top of reative cell 5 is provided with
Hydraulic cylinder 7, the part that its piston rod is located at below liquid level has been set with hydraulic motor 8, and this hydraulic motor is hollow outer rotation liquid
Pressure motor, prior art is repeated no more；The outside of hydraulic motor 8 has been set with the agitating paddle 10 driven by hydraulic motor 8, hydraulic pressure again
Seal cover board 20 has been fixedly mounted on the piston rod of the lower section of motor 8；Hydraulic cylinder 7 and hydraulic motor 8 pass through oil with hydraulic system 9
Road is connected, and is additionally provided with control hydraulic cylinder 7, hydraulic motor 8, the sequence starting of deslagging magnetic valve 24 and the PLC control system of closing；
The edge cross-section of seal cover board 20 be circular arc be a bit of sphere, therefore, seal cover board 20 with reverse frustoconic reaction tank in
The sealing of wall is actually the sealing of sphere and the conical surface, and sealing effectiveness is preferable；The bottom of reative cell 5 is molten to contain calcium hydroxide saturation
There are three road annular grooves liquid level is arranged below inside liquid 6, the reaction tank in reverse frustoconic, reaction tank, be respectively arranged on sealing
Equal air drain 17 above the seal line of cover plate 20 and reaction pool wall, go out liquid fluid-uniformly mixing groove 18 and the feed liquor fluid-uniformly mixing groove 19 of lower section, gas
Groove 17 is connected with air inlet pipe 3, and it is step trough to go out liquid fluid-uniformly mixing groove 18 and feed liquor fluid-uniformly mixing groove 19, and the big end for being close to pool wall is provided with filter screen
22, the small end for going out liquid fluid-uniformly mixing groove 18 is connected by spray pump 15 with the spray equipment 12 positioned at the top of spray chamber 14, the equal liquid of feed liquor
The small end of groove 19 is connected by filling pipe 2 with solution pool 1, and the inner bottom part of solution pool 1 is that quick lime is calcium oxide, can so ensure pond
Interior liquid be saturated solution, also can periodic agitation become turbid solution improve solutes content, the height of solution pool 1 is in this implementation
Design more much higher than reaction tank in example, be to keep solution to be continuously added reaction tank to save energy, also can be using the side being pumped into
Formula；The lower section of spray equipment 12 is provided with the internal flue gas buffering mechanism 13 for being provided with some spiral flues, and this flue gas delays
Flushing device is prior art, is not repeated herein；Reaction tank bottom is connected with the scum pipe 23 controlled by deslagging magnetic valve 24；It is described
Escape pipe 11 is arranged on the top of spray chamber 14.
Emphasis illustrates PLC and hydraulic system herein.Specifically, since it is desired that PLC is controlled, the hydraulic system 9
Common fuel tank, oil pump and the respective Multi-position electromagnetic valve controlled by PLC system are contained in fact, and such as hydraulic cylinder 7 is related to positive and negative
Motion, preferably three position four-way electromagnetic valve, hydraulic motor 8 are only needed to start or closed, preferable two-position two-way solenoid valve；
PLC provides electric signal, and magnetic valve is opened or closed, and is acted when hydraulic cylinder 7, hydraulic motor 8 are different in the present invention, PLC system one
The control sequence of individual circulation is：Hydraulic motor 8 stir → stir stop and hydraulic cylinder 7 decline → in place after seal cover board 20 realize it is close
Envelope → deslagging magnetic valve 24 opens → deslagging magnetic valve 24 closes → hydraulic cylinder 7 rises → in place rear hydraulic motor 8 stir.
A kind of processing method of above-mentioned flue gas high-efficiency desulfurization equipment, comprises the following steps：
1) flue gas enters deduster 4, and solid dust is removed；
2) flue gas after dedusting enters the reaction tank of calcium hydroxide saturated solution 6, bubble by check valve 16, equal air drain 17
Play stirring action in itself in the solution, add the strong stirring of the agitating paddle 10 of the drive of hydraulic motor 8, sulfur dioxide in flue gas
Gas and the reaction generation calcium sulfite of calcium hydroxide saturated solution 6 precipitation 21, to bottom deposit；Most titanium dioxides in flue gas
Sulphur is removed；
3) calcium hydroxide saturated solution 6 is drawn into spray equipment 12, spray dress by going out liquid fluid-uniformly mixing groove 18 and spray pump 15
12 are put to keep down spray；The flue gas of nubbin sulfur dioxide enters spray chamber 14, and if passing through flue gas buffering mechanism 13
Dry spiral flue, speed is greatly diminished, and is fully reacted with the calcium hydroxide in spray solution, and sediment is by ejecting liquid band
Enter reaction tank；
4) PLC control system is according to preset time, and timing closes hydraulic motor 8, starts hydraulic cylinder 7, and piston rod is stretched downwards
Go out, seal cover board 20 is pressed in reaction pool wall, basic guarantee sealing；PLC control system hydraulic cylinder 7 in place after, by pre-
If the time starts deslagging magnetic valve 24, calcium sulfite precipitation 21 is pressed into by the solution increase internal pressure that filling pipe 2 constantly injects
Scum pipe 23；Deslagging magnetic valve 24 is closed in PLC control system control, while controlling hydraulic cylinder 7 to bounce back, seal cover board 20 rises；
The constantly injection solution of filling pipe 2 enters reaction tank.
The foregoing description of the disclosed embodiments, only for enabling professional and technical personnel in the field to realize or using this
Invention.A variety of modifications to these embodiments will be apparent for those skilled in the art, institute herein
The General Principle of definition can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore,
The present invention is not intended to be limited to the embodiments shown herein, and is to fit to special with principles disclosed herein and novelty
The consistent most wide scope of point.
Claims (8)
1. a kind of flue gas high-efficiency desulfurization equipment, including air inlet pipe (3), desulphurization system, escape pipe (11), it is characterised in that described
Desulphurization system includes reative cell (5) and the spray chamber (14) of rear end；The height of spray chamber (14) is higher than reative cell (5), and bottom is
The inclined-plane of reative cell (5) can be back to for liquid；Hydraulic cylinder (7) is installed, its underpart of the piston rod is suit at the top of reative cell (5)
In outside hydraulic motor (8), below hydraulic motor (8) and fixed seal cover board (20) on the piston rod, it is sleeved on
Agitating paddle (10) on hydraulic motor (8)；Hydraulic cylinder (7) and hydraulic motor (8) are connected with hydraulic system (9) by oil circuit；
Reative cell (5) bottom to contain calcium hydroxide saturated solution (6), the reaction tank in reverse frustoconic, inside reaction tank liquid level with
Three road annular grooves are arranged with, seal cover board (20) and the equal air drain above the seal line of reaction pool wall is respectively arranged on
(17) liquid fluid-uniformly mixing groove (18) and the feed liquor fluid-uniformly mixing groove (19) of lower section, are gone out, equal air drain (17) is connected with air inlet pipe (3), goes out the equal liquid of liquid
Groove (18) and feed liquor fluid-uniformly mixing groove (19) are step trough, and the big end for being close to pool wall is provided with filter screen (22), goes out liquid fluid-uniformly mixing groove (18) small
End is connected by spray pump (15) with the spray equipment (12) positioned at spray chamber (14) top, and feed liquor fluid-uniformly mixing groove (19) small end passes through
Filling pipe (2) is connected with solution pool (1)；Reaction tank bottom is connected with the scum pipe (23) controlled by deslagging magnetic valve (24)；Institute
State the top that escape pipe (11) is arranged on spray chamber (14).
Solution pool 1, filling pipe 2, air inlet pipe 3, deduster 4, reative cell 5, calcium hydroxide saturated solution 6, hydraulic cylinder 7, hydraulic pressure horse
Up to 8, hydraulic system 9, agitating paddle 10, escape pipe 11, spray equipment 12, flue gas buffering mechanism 13, spray chamber 14, spray pump 15,
Check valve 16, equal air drain 17, go out liquid fluid-uniformly mixing groove 18, feed liquor fluid-uniformly mixing groove 19, seal cover board 20, calcium sulfite precipitation 21, filter screen 22,
Scum pipe 23, deslagging magnetic valve 24, deslagging pond 25.
2. a kind of flue gas high-efficiency desulfurization equipment according to claim 1, it is characterised in that also including being arranged on air inlet pipe
(3) deduster (4) between desulphurization system.
3. a kind of flue gas high-efficiency desulfurization equipment according to claim 2, it is characterised in that the deduster (4) is wet type
Electric cleaner.
4. a kind of flue gas high-efficiency desulfurization equipment according to claim 3, it is characterised in that the deduster (4) and desulfurization
Check valve (16) is provided between system.
5. a kind of flue gas high-efficiency desulfurization equipment according to claim 4, it is characterised in that the side of the seal cover board (20)
Edge section is circular arc.
6. a kind of flue gas high-efficiency desulfurization equipment according to claim 5, it is characterised in that in the spray equipment (12)
Lower section is provided with the internal flue gas buffering mechanism (13) for being provided with some spiral flues.
7. a kind of flue gas high-efficiency desulfurization equipment according to claim 6, it is characterised in that be additionally provided with control hydraulic cylinder
(7), hydraulic motor (8), (24) sequence starting of deslagging magnetic valve and the PLC control system closed.
8. the processing method of a kind of flue gas high-efficiency desulfurization equipment according to claim 7, it is characterised in that including following step
Suddenly：
1) flue gas enters deduster (4), and solid dust is removed；
2) flue gas after dedusting enters the reaction tank of calcium hydroxide saturated solution (6), gas by check valve (16), equal air drain (17)
Bubble plays stirring action in itself in the solution, adds two in the strong stirring of the agitating paddle (10) of hydraulic motor (8) drive, flue gas
Sulfur oxide gas and calcium hydroxide saturated solution (6) reaction generation calcium sulfite precipitation (21), to bottom deposit；It is big absolutely in flue gas
Part sulfur dioxide is removed；
3) calcium hydroxide saturated solution (6) is drawn into spray equipment (12) by going out liquid fluid-uniformly mixing groove (18) and spray pump (15), spray
Shower device (12) keeps down spray；The flue gas of nubbin sulfur dioxide enters spray chamber (14), and buffers dress by flue gas
Some spiral flues of (13) are put, speed is greatly diminished, and is fully reacted with the calcium hydroxide in spray solution, sediment quilt
Ejecting liquid brings reaction tank into；
4) PLC control system is according to preset time, and timing closes hydraulic motor (8), starts hydraulic cylinder (7), and piston rod is stretched downwards
Go out, seal cover board (20) is pressed in reaction pool wall, basic guarantee sealing；PLC control system hydraulic cylinder (7) in place after,
Start deslagging magnetic valve (24) at preset timed intervals, the solution increase internal pressure that filling pipe (2) constantly injects sinks calcium sulfite
Form sediment (21) press-in scum pipe (23)；Deslagging magnetic valve (24) is closed in PLC control system control, while hydraulic cylinder (7) retraction is controlled,
Seal cover board (20) rises；Filling pipe (2) constantly injection solution enters reaction tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710462224.8A CN107261778A (en) | 2017-06-19 | 2017-06-19 | A kind of flue gas high-efficiency desulfurization equipment and processing method |
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| CN201710462224.8A CN107261778A (en) | 2017-06-19 | 2017-06-19 | A kind of flue gas high-efficiency desulfurization equipment and processing method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108479370A (en) * | 2018-05-04 | 2018-09-04 | 中国神华能源股份有限公司 | High position arrangement spray column is connected desulphurization system control method with bubble tower |
| CN108744941A (en) * | 2018-05-04 | 2018-11-06 | 中国神华能源股份有限公司 | A kind of the spray column desulphurization system and method for high-order arrangement |
| CN108837689A (en) * | 2018-05-04 | 2018-11-20 | 中国神华能源股份有限公司 | Double tower double circulation desulphurization system |
| CN109224824A (en) * | 2018-05-04 | 2019-01-18 | 中国神华能源股份有限公司 | Wet desulfurization system |
| CN111111408A (en) * | 2019-12-25 | 2020-05-08 | 临沂鲁明环保科技设备有限公司 | Pressurization reverse desulfurization and dust removal integrated equipment |
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| CN201988242U (en) * | 2011-03-07 | 2011-09-28 | 苏州永添设备有限公司 | Rapid filtrating slag discharging device |
| CN205867986U (en) * | 2016-07-22 | 2017-01-11 | 浙江千尧环境工程有限公司 | Wet flue gas desulfurization high efficiency tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201988242U (en) * | 2011-03-07 | 2011-09-28 | 苏州永添设备有限公司 | Rapid filtrating slag discharging device |
| CN205867986U (en) * | 2016-07-22 | 2017-01-11 | 浙江千尧环境工程有限公司 | Wet flue gas desulfurization high efficiency tower |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108479370A (en) * | 2018-05-04 | 2018-09-04 | 中国神华能源股份有限公司 | High position arrangement spray column is connected desulphurization system control method with bubble tower |
| CN108744941A (en) * | 2018-05-04 | 2018-11-06 | 中国神华能源股份有限公司 | A kind of the spray column desulphurization system and method for high-order arrangement |
| CN108837689A (en) * | 2018-05-04 | 2018-11-20 | 中国神华能源股份有限公司 | Double tower double circulation desulphurization system |
| CN109224824A (en) * | 2018-05-04 | 2019-01-18 | 中国神华能源股份有限公司 | Wet desulfurization system |
| CN111111408A (en) * | 2019-12-25 | 2020-05-08 | 临沂鲁明环保科技设备有限公司 | Pressurization reverse desulfurization and dust removal integrated equipment |
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