CN107158921A - A kind of ultra-clean exhaust system of coal burning flue gas desulfurization dedusting - Google Patents
A kind of ultra-clean exhaust system of coal burning flue gas desulfurization dedusting Download PDFInfo
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- CN107158921A CN107158921A CN201710555257.7A CN201710555257A CN107158921A CN 107158921 A CN107158921 A CN 107158921A CN 201710555257 A CN201710555257 A CN 201710555257A CN 107158921 A CN107158921 A CN 107158921A
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- pipeline
- pump
- desulfurizing tower
- flue gas
- slurries
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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
- B01D53/502—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 solution or suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/12—Washers with plural different washing sections
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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
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of ultra-clean exhaust system of coal burning flue gas desulfurization dedusting, including desulfurizing tower, smoke inlet and exhanst gas outlet are provided with desulfurizing tower, smoke inlet is connected with fire coal boiler fume air-introduced machine, exhanst gas outlet is connected with chimney, is located in desulfurizing tower and some spiral boards, some spraying layers are disposed between smoke inlet and exhanst gas outlet, gas cap, sieve plate, secondary interception spray equipment and tube bank demister is risen；Wherein, each spraying layer is connected by pipeline with the fluid collection chamber of desulfurization tower bottom, gas cap is risen to be connected with the secondary interception water tank outside desulfurizing tower, and the secondary interception water tank is connected with secondary interception spray equipment, fluid collection chamber is connected with the NaOH serum storage tanks outside desulfurizing tower, the bottom of fluid collection chamber is provided with plasma discharge pipeline, the plasma discharge pipeline and the Na outside desulfurizing tower2SO3Serum storage tank is connected, Na2SO3It is provided with serum storage tank in delivery pipe, delivery pipe and is provided with Na2SO3Slurry feeding pump.
Description
Technical field
Engineering field is handled the present invention relates to fire coal boiler fume, it particularly relates to a kind of coal burning flue gas desulfurization
The ultra-clean exhaust system of dedusting.
Background technology
Current environmental pollution is serious, and national discharge index is strict, therefore increasing station boiler carries out boiler smoke
Minimum discharge is transformed.
The existing sulfur removal technology of in the market is numerous, and main technique has lime (stone)-gypsum, Dual alkali and magnesium oxide method etc.,
But this several sulfur removal technology liquid-gas ratio is higher, and limestone-gypsum method is typically in more than 20mg/Nm3, and double alkali method desulfurizing is also in 7mg/
More than Nm3, and the liquid-gas ratio of single alkali desulphurization is between 4~5mg/Nm3, thus first two sulfur removal technology investment cost compared with
Greatly.And the accessory substance gypsum of first two sulfur removal technology, gypsum is a kind of widely used industrial materials and construction material, can be used
In cement retarder, gypsum building products, modelling, medical food additive, gas washing in SA production, filler, paint filler
Deng, but gypsum excess production capacity in the market, and desulfurated plaster is extremely difficult to available purity (more than 90%).Single alkaline process
The accessory substance of desulfurization is Na2SO3Slurries, Na2SO3Slurries are mainly used in sulphite cellulose ester processed, sodium thiosulfate, organised
Medicine, white goods etc. are learned, reducing agent, preservative, antichlor etc., the Na that single alkali desulphurization is produced is also served as2SO3Slurries purity
Industrial production demand, and Na in the market can be met2SO3It is expensive, with very big market value.
Demister now mainly has wet electrical dust precipitator and two kinds of demister of tube bank, but wet-esp in boiler smoke tower
Device is relatively restrained demister and involved great expense, and invests larger, and operating cost is high.
The problem of in correlation technique, effective solution is not yet proposed at present.
The content of the invention
The problem of in correlation technique, the present invention proposes a kind of ultra-clean exhaust system of coal burning flue gas desulfurization dedusting,
Can be to the SO in flue gas2, dust be effectively treated, reach minimum discharge index, and by desulfurization product Na2SO3In papermaking row
The progress of industry integrates recycling.
The technical proposal of the invention is realized in this way：
Cigarette is provided with a kind of ultra-clean exhaust system of coal burning flue gas desulfurization dedusting, including desulfurizing tower, the desulfurizing tower
Gas entrance and exhanst gas outlet, the smoke inlet are connected with fire coal boiler fume air-introduced machine, and the exhanst gas outlet is connected with chimney,
It is located in the desulfurizing tower and some spiral boards, some sprays is disposed between the smoke inlet and the exhanst gas outlet
Layer, liter gas cap, sieve plate, secondary interception spray equipment and tube bank demister；Wherein, each spraying layer is taken off by pipeline with described
The fluid collection chamber connection of sulphur tower bottom, and slurry circulating pump is provided with the pipeline, described liter of gas cap is by pipeline with being located at institute
The secondary interception water tank connection outside desulfurizing tower is stated, and the secondary interception water tank passes through pipeline and the secondary interception spray equipment
Secondary interception water pump is provided with connection, the pipeline, the fluid collection chamber passes through pipeline and the NaOH outside the desulfurizing tower
Serum storage tank is connected, and NaOH slurries supply pumps are provided with the pipeline, also, the bottom of the fluid collection chamber is provided with discharge pipe
Slurry pump, and the plasma discharge pipeline and the Na outside the desulfurizing tower are provided with road, the plasma discharge pipeline2SO3Serum storage tank connects
Connect, the Na2SO3It is provided with serum storage tank in delivery pipe, the delivery pipe and is provided with Na2SO3Slurry feeding pump.
Wherein, the bottom of the fluid collection chamber is connected by pipeline with being arranged at the catch pit of underground.
Wherein, in addition to accident pool, the entrance of the accident pool is connected by pipeline with the pipeline with slurry circulating pump,
The outlet of the accident pool is connected by pipeline with fluid collection chamber, and accident slurries pump is provided with the pipeline.
Wherein, in addition to technique water tank, technique water inlet and technique water out, the work are provided with the technique water tank
It is provided with process water water pump on skill water out, and technique water out passes through pipeline apex cavity respectively with the desulfurizing tower, institute
State the pipeline with slurry circulating pump, the fluid collection chamber, the secondary interception water tank and NaOH serum storage tanks connection.
Wherein, the slurry circulating pump, the secondary interception water pump, the NaOH slurries supply pump, the slurry pump, institute
State Na2SO3The quantity of slurry feeding pump, the accident slurries pump and the process water water pump is two, is run based on one
Pump, one is stand-by pump.
The flue gas that the present invention is produced boiler by air-introduced machine is introduced in desulfurizing tower, and flue gas countercurrently passes through eddy flow from bottom to top
Plate, spraying layer, the SO risen in gas cap, sieve plate, tube bank demister, realization effectively removing flue gas2And dust.The liquid of single alkali desulphurization
Gas ratio is 4L/m, can greatly reduce initial investment cost, the accessory substance of single alkali desulphurization is Na2SO3Slurries, Na2SO3Slurries master
It is used for sulphite cellulose ester processed, sodium thiosulfate, organic chemical, white goods etc., also serves as reducing agent, anti-corrosion
Agent, antichlor etc..The Na that single alkali desulphurization is produced2SO3Slurries purity can meet industrial production demand, and in the market
Na2SO3It is expensive, with very big market value.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation of the ultra-clean exhaust system of coal burning flue gas desulfurization dedusting according to embodiments of the present invention.
In figure：
1st, process water water pump；2nd, technique water tank；3rd, pulse suspension pump；4th, slurry circulating pump；5th, desulfurizing tower；6th, spiral board；
7th, spraying layer；8th, sieve plate；9th, secondary interception spray equipment；10th, demister is restrained；11st, secondary interception water tank；12nd, it is secondary to intercept
Water pump；13、Na2SO3Slurry feeding pump 14, Na2SO3Serum storage tank；15th, air-introduced machine；16th, accident slurries pump；17th, accident pool；
18th, slurry pump；19th, catch pit；20th, NaOH slurries supply pump；21st, NaOH serum storage tanks；22nd, chimney；23rd, gas cap is risen.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained belongs to what the present invention was protected
Scope.
There is provided a kind of ultra-clean exhaust system of coal burning flue gas desulfurization dedusting for embodiments in accordance with the present invention.
As shown in figure 1, being starched according to the ultra-clean exhaust system of embodiments of the invention coal burning flue gas desulfurization dedusting including desulfurization
Flue gas demister system in liquid preparing system, desulfurizing tower, the desulfurization slurry circulatory system, tower, the unrestrained system of desulfurization slurry and process water
System.The desulfurization slurry, which prepares feed system, includes NaOH storage tanks 21, NaOH slurries supply pump 20, NaOH slurries delivery pipes
Road.The desulfurization slurry circulatory system includes slurry circulating pump 4, pulse suspension pump 3, spiral board 6, spraying layer 7, serum recycle pipe
Road.Flue gas demister system includes rising gas cap 23, sieve plate 8, secondary interception spray equipment 9, secondary interception water tank 11, two in the tower
Secondary interception water pump 12, secondary interception waterpipe, tube bank demister 10.The unrestrained system of desulfurization slurry includes slurry pump 18, collection
Puddle 19, accident pool 17, accident slurries pump 16, Na2SO3Serum storage tank 14, Na2SO3Slurry feeding pump 13, plasma discharge pipeline.It is described
Technique water system includes process water water pump 1, technique water tank 2, technique waterpipe.In addition, also including air and gas system, the cigarette wind system
System is introduced untreated flue gas in desulfurizing tower by flue by air-introduced machine.
, can be to the SO in boiler smoke by the such scheme of the present invention2, dust be effectively treated, reach ultralow
Discharge index.
When specifically used, a set of desulfurization slurry is set to prepare stocking system, including NaOH storage tanks 21, two NaOH slurries
Fluid supply pump 20 and NaOH slurries conveyance conduits.The volume of NaOH storage tanks 21 can be met to be not less than under the desulphurization system oepration at full load
72h NaOH consumptions, are squeezed into NaOH slurries in desulfurizing tower by NaOH slurries conveyance conduits by NaOH slurries supply pump 20, two
The fortune one of platform NaOH slurries supply pump 20 1 is standby.
Boiler smoke is introduced in desulfurizing tower through air-introduced machine by flue, spiral board 6 of the flue gas Jing Guo spraying layer arranged beneath,
Spiral board 6, which has, improves desulfuration efficiency, effectively reduction desulphurization reaction liquid-gas ratio, and then reduce the effect of energy consumption, rotational flow gas point
Cloth apparatus adds Corrosion Protection of Fiber Reinforced Plastics using stainless steel, and long lifespan, stable operation is also had concurrently as desulphurization system spraying layer inspection platform
Effect.Spiral board 6 has carried out larger improvement to existing spray system and flue gas flow field distribution, is distributed by increasing rotational flow gas
Device, makes flue gas possess certain radial velocity, and the convective mass transfer speed between lifting flue gas and sprayed slurry effectively lifts desulfurization
Efficiency, the blade of eddy flow even distribution device also has the liquid dish of sprayed slurry concurrently, the slurries below effectively spray is obtained two
It is secondary to utilize, and liquid on blade got rid of to tower wall by centrifugal force, is flowed down from tower wall, is effectively reduced air resistance,
In the case that boiler load produces larger fluctuation, smoke distribution and gas-liquid distribution remain to maintain to stablize relatively, and build gas-liquid
The chemical reaction environment of double turbulent flows, two reaction zones and combined-circulation absorption system；Obtain more preferable with lower liquid-gas ratio (L/G)
SO2Removal effect.
Multi-layer sprinkling is designed with desulfurizing tower, every layer of spraying layer 7 sets multiple high-efficient atomizing shower nozzles, make doctor solution and flue gas
Fully contact, effectively improves the utilization rate of doctor solution.Horizontal stroke of the layout design of spray assemblies and nozzle into uniform fold absorption tower
Section.One spraying layer is made up of piping-main scheme grout distribution pipeline and nozzle with connecting branch.Designed using unit style, each
Spraying layer matches somebody with somebody an absorption tower circulating pump 4 being connected with spraying layer increase in pipeline system, so as to ensure what is required in absorption tower
Absorb slurries coverage rate.The quantity of slurry circulating pump 4 of operation is according to the change of boiler load and the requirement to absorbing slurry flow
To determine, to reach the absorption efficiency of requirement.Due to most economical pump operation pattern, the recycling can be selected according to boiler load
System can save energy consumption under low boiler load.Using the rotation hollow cone nozzle and 316L spray pipings being made up of carborundum,
Can it is corrosion-free with longtime running, without abrasion, without fouling and the problems such as blocking.Tower body spray is reasonable in design, it is ensured that spray covering
Area 200%.SO when flue gas passes through spraying layer in flue gas2Reacted with the NaOH slurries after sprinkler height is atomized,
Generate Na2SO3And water, so as to reach removal SO2Effect, specific reactional equation is：2NaOH+SO2=Na2SO3+H2O。
Flue gas enters flue gas demister system in flue gas demister system in tower, tower after spraying layer and includes rising gas cap 23, sieve
Plate 8, secondary interception spray equipment 9, secondary interception water tank 11, secondary interception water pump 12, secondary interception waterpipe, restrain demister
10.Flue gas is from bottom to top by rising gas cap 23, sieve plate 8, secondary interception spray equipment 9.It is to spray to rise the main function of gas cap 23
In flue gas afterwards there is larger water droplet to carry out first separation interception, will in the presence of gas cap by the water droplet being entrained in flue gas
Small water droplet accumulates big water droplet, is separated under gravity with flue gas, and big water is dropped in interception water, from inflow two
Reused in secondary interception water tank 11.Sieve plate 8 refers to set up one piece or polylith percolation hole on the basis of countercurrent spray
Screen plate 8, sieve plate is arranged in comprehensively the cross section on whole absorption tower, is entered flue gas and is evenly distributed on behind absorption tower entirely
On section, the lower section of sieve plate 8 also arranges that one layer of spraying layer 7 carries out presaturation to flue gas sometimes.Sieve plate 8 is to carry aperture or elongated
The grid of seam.Flue gas is up flowed under sieve plate 8, and slurries are sprayed down from sieve plate 8, and flue gas and slurries are sent out on the surface of sieve plate 8
Raw strong blending, forms froth bed, and froth bed has very big gas-liquid contact interface, has good absorbability to SO2.Separately
Outer secondary interception spray equipment 9 is in arrangement of nozzles, it is desirable to the coverage rate that every has 300% in tower, to ensure that flue gas can
Cmpletely contacted with air.Sieve plate 8 intercept be by flue gas by moisture film carry out depth interception, can be by the fine particle in flue gas
Thing and aerosol carry out depth cleaning and intercepted.Secondary blocking apparatus is the high efficiency spray designed for desulfurization minimum discharge requirement
System, is arranged in the top of spraying layer 7, is made using stainless steel, long lifespan, stable operation.
The dust concentration of desulfurizing tower import flue gas is generally 30mg/Nm or so, can be removed after secondary blocking apparatus
More than 50% dust in flue gas, then adverse current is by tube bank demister.The use environment of bundled tube deduster 10 is containing big
0~50 DEG C of saturation neat stress of drop is measured, feature is that droplet amount is big, and mist droplet particle size has a very wide distribution, by slurry droplet, condensation water
Drop and dirt particle composition；Dedusting is mainly removing slurry droplet and dirt particle.The cohesion of fine drop and particle is substantial amounts of tiny
The collision probability under the conditions of high-speed motion is significantly increased drop with particle, it is easy to condenses, assemble as bulky grain, thus realize from
The separation of gas phase.The liquid film in tube wall of dust settler face, which can be caught, knows the fine drop for touching its surface, especially speed increaser and point
From the blocked up liquid film on the surface of device blade, can occur " aproll " phenomenon in the presence of high velocity air, substantial amounts of big drop is from leaf
Piece surface is shed out, and the drop layer of big drop composition is formd on blade top, and the fine drop through drop layer is caught
Know, big drop falls back blade surface after becoming greatly, become big drop again, realization is known to catching for fine mist.By accelerator
Air-flow after acceleration rotates at a high speed to be moved upwards, and the fine mist, dirt particle in air-flow are separated with gas under the action of the centrifugal force,
Moved to drum surface direction.And the drop that the broken thing of the air-flow of high speed rotary motion is trapped is in one rotation of cylinder wall formation
The liquid film layer of motion.The fine mist and dust particale separated from gas is from the removing in flue gas.
10 after tube bank deduster, the dust concentration in flue gas can be down to below 5mg/Nm, then drain into chimney 22, reach
Mark discharge.The Na that desulfurization is produced2SO3Slurries drain into Na by slurry pump2SO3Serum storage tank 14.
The a set of emergency system of design in whole desulphurization system, including accident pool 17, an accident pump 16.Work as desulfurizing tower
5 can drain into slurries in tower in accident pool 17 when breaking down, and be overhauled.The dischargeable capacity of accident pool 17 is followed for Desulfurization tower slurry
1.1 times of circular rector, set an accident slurries pump 16, and accident slurries pump 16 can return to the slurries in accident pool in 10 hours
In desulfurizing tower 5.
Whole desulphurization system designs a set of technique water system, including 1 technique water tank 2,2 process water water pumps 1, FGD works
Skill water conservancy power plant's industry water.Exerting oneself for process water water pump 1 meets following water consumption：Absorb slurries and prepare water consumption, accident row
Place system rinse water (interruption), equipment and instrument instrument water for cleaning (interruption), equipment machine envelope cooling water, secondary interception are rinsed
With water, mist eliminator flushing water.The dischargeable capacity of technique water tank 2 is the water consumption of whole 4 hours of desulphurization system.
In summary, by means of the above-mentioned technical proposal of the present invention, SO is absorbed by soda2, sieve plate and tube bank demister
The technology of dedusting, through testing and summarizing repeatedly, coal burning flue gas desulfurization dust minimum discharge Synergistic technique is applied to every profession and trade
Fire coal boiler fume handles engineering, and the technology can meet SO2Concentration<35mg/Nm3 and dust emission concentration<5mg/Nm's is ultralow
Discharge index.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (5)
1. a kind of ultra-clean exhaust system of coal burning flue gas desulfurization dedusting, it is characterised in that including desulfurizing tower, on the desulfurizing tower
Be provided with smoke inlet and exhanst gas outlet, the smoke inlet is connected with fire coal boiler fume air-introduced machine, the exhanst gas outlet with
Chimney is connected, be located in the desulfurizing tower be disposed between the smoke inlet and the exhanst gas outlet some spiral boards,
Some spraying layers, liter gas cap, sieve plate, secondary interception spray equipment and tube bank demister；Wherein, each spraying layer passes through pipeline
It is connected with the fluid collection chamber of the desulfurization tower bottom, and slurry circulating pump is provided with the pipeline, described liter of gas cap passes through pipeline
It is connected with the secondary interception water tank outside the desulfurizing tower, and the secondary interception water tank passes through pipeline and the secondary interception
Spray equipment is connected, and secondary interception water pump is provided with the pipeline, the fluid collection chamber is by pipeline with being located at outside the desulfurizing tower
NaOH slurries supply pumps are provided with the NaOH serum storage tanks connection in portion, the pipeline, also, the bottom of the fluid collection chamber is provided with
Slurry pump, and the plasma discharge pipeline and the Na outside the desulfurizing tower are provided with plasma discharge pipeline, the plasma discharge pipeline2SO3Slurries
Storage tank is connected, the Na2SO3It is provided with serum storage tank in delivery pipe, the delivery pipe and is provided with Na2SO3Slurry feeding pump.
2. the ultra-clean exhaust system of coal burning flue gas desulfurization dedusting according to claim 1, it is characterised in that the hydrops
The bottom of chamber is connected by pipeline with being arranged at the catch pit of underground.
3. the ultra-clean exhaust system of coal burning flue gas desulfurization dedusting according to claim 2, it is characterised in that also including thing
Gu Chi, the entrance of the accident pool is connected by pipeline with the pipeline with slurry circulating pump, and the outlet of the accident pool passes through
Pipeline is connected with fluid collection chamber, and accident slurries pump is provided with the pipeline.
4. the ultra-clean exhaust system of coal burning flue gas desulfurization dedusting according to claim 3, it is characterised in that also including work
It is provided with skill water tank, the technique water tank on technique water inlet and technique water out, the technique water out and is provided with technique
Water water pump, and apex cavity, the pipe with slurry circulating pump of the technique water out by pipeline respectively with the desulfurizing tower
Road, the fluid collection chamber, the secondary interception water tank and NaOH serum storage tanks connection.
5. the ultra-clean exhaust system of coal burning flue gas desulfurization dedusting according to claim 4, it is characterised in that the slurries
Circulating pump, the secondary interception water pump, the NaOH slurries supply pump, the slurry pump, the Na2SO3Slurry feeding pump, institute
The quantity for stating accident slurries pump and the process water water pump is two, and pump is run based on one, and one is stand-by pump.
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| CN201710555257.7A CN107158921A (en) | 2017-07-10 | 2017-07-10 | A kind of ultra-clean exhaust system of coal burning flue gas desulfurization dedusting |
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| CN110180371A (en) * | 2019-05-15 | 2019-08-30 | 浙江浩普环保工程有限公司 | A kind of alkali desulphurization system and its working method |
| CN110237653A (en) * | 2019-06-21 | 2019-09-17 | 郑州轻工业学院 | A kind of spiral board reaction system automatically adjusting blade angle and its application method |
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| CN104941411A (en) * | 2015-05-11 | 2015-09-30 | 武汉都市环保工程技术股份有限公司 | Ozone oxidation and ammonia spraying combined desulfuration and denitration method and device for industrial smoke |
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| CN105498513A (en) * | 2016-01-18 | 2016-04-20 | 北京国电龙源环保工程有限公司 | Wet flue gas high-efficiency desulfuration and high-efficiency dedusting integrated device through double circulation washing |
| CN205760585U (en) * | 2016-05-20 | 2016-12-07 | 山东中新环境工程有限公司 | Single column double circulation desulphurization system |
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Application publication date: 20170915 |