CN208927936U - A kind of flue-gas dust-removing and desulfurization denitrification integrated device - Google Patents
A kind of flue-gas dust-removing and desulfurization denitrification integrated device Download PDFInfo
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Abstract
The utility model discloses a kind of flue-gas dust-removing and desulfurization denitrification integrated devices, including dust-removal and desulfurizing denitration structure, catalytic structure, water circulation structure, feeding structure and discharging structure；Feeding structure includes heat exchange of heat pipe and pretreatment atomizer, dust-removal and desulfurizing denitration structure includes cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower, catalytic structure includes flow delivery systems, catalyst storage bin, metering powder feeder and size-mixing tank, water circulation structure includes circulating water pool, the system is not necessarily to wet electric precipitation, and to dirt, the SO in inlet flue gas2The requirement of content no maximum, realize dedusting, the integration of desulphurization and denitration, flue gas is cooled down and is dehumidified to flue gas by cool-down dehumidification device before being dusted desulphurization denitration, so that chimney does not need to carry out anti-corrosion, level-one Superstrory turbulent mass transfer tower, second level turbulent mass transfer tower divide the setting of tower structure enable accident occur when it is convenient handle, reduce production cost.
Description
Technical field
The utility model relates to flue gases purification field, in particular to a kind of flue-gas dust-removing and desulfurization denitrification integral dress
It sets.
Background technique
The coal resources medium-high sulfur coal content in China is more, according to incompletely statistics the resource coal sulfur-bearing in the whole nation about 13%
Amount is higher than 2%, and containing elements such as a large amount of C, H, S, N in coal, therefore a large amount of pollutant of the direct burning and exhausting of coal is
It causes China's atmospheric environment in serious coal-smoke pollution, very big harm is all caused to natural ecology and the mankind, wherein again
With SO2And NOXThe most serious, loss and harm caused by the life of natural environment and the mankind are most acute, control pot in the world at present
Kiln gas dust (especially pellet), NOXAnd SO2The most effectual way of discharge is sack cleaner, ammonia selection respectively
Property catalytic reduction method (SCR) and lime or limestone wet desulfurization.
Dedusting present in technology at present, desulphurization and denitration all-in-one machine discharge amount be unable to reach lower discharge standard, and
Dirt, SO to import2Content has upper limit requirement, can not remove PM2.5, while the method for wet dedusting desulfurization denitration to be vented
The water capacity of flue gas is larger, needs to carry out heat preservation and anti-corrosion to pressurization air-introduced machine and chimney, and same Tower System generally can not
The sulfur removal technologies such as magnesium, calcium, sodium, ammonia are adapted to simultaneously, adaptability is poor, and quantity of wastewater effluent is big, and liquid-gas ratio is larger, and energy consumption is high, device
The case where being easy to happen fouling and blocking.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of dust-removal and desulfurizing denitration effects
It is good, import dirt, sulfur content no maximum, have the function except PM2.5, discharge humidity of flue gas it is low, without anti-corrosion and heat preservation and
Adapt to a variety of sulfur removal technologies, energy consumption it is small, without blocking fouling and water be recycled, the good flue-gas dust-removing and desulfurization denitration one of the feature of environmental protection
Body makeup is set.
The technical issues of the utility model solves can be realized using following technical scheme:
A kind of flue-gas dust-removing and desulfurization denitrification integrated device, including dust-removal and desulfurizing denitration structure, catalytic structure, water circulation knot
Structure, feeding structure and discharging structure；
The output end of the catalytic structure is connected with the input terminal of water circulation structure, feeding structure, water circulation structure with
The input port of dust-removal and desulfurizing denitration structure is connected, and the delivery outlet of dust-removal and desulfurizing denitration structure is tied with water circulation structure and discharging respectively
Structure is connected；
The feeding structure includes heat exchange of heat pipe and pretreatment atomizer, the input terminal and the electricity of outside of heat exchange of heat pipe
Deduster is connected, and the output end of heat exchange of heat pipe is connected with pretreatment atomizer, and output end and the dedusting for pre-processing atomizer are de-
The connection of nitre desulfurization structure；
The dust-removal and desulfurizing denitration structure includes that cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and the superpower turbulent flow of second level pass
Matter tower, pretreatment atomizer, cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower are defeated by first
Water inlet pipe is connected in parallel with external source of oxygen, cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower
It is connected in parallel respectively by the second input water pipe and the first output water pipe with circulating water pool, the superpower turbulent flow of cool-down dehumidification device, level-one
Mass transfer column and second level Superstrory turbulent mass transfer tower are connected in series by feed pipe and pretreatment atomizer, level-one Superstrory turbulent mass transfer tower
Divide tower innovation structure with the classification of second level Superstrory turbulent mass transfer tower, so that convenient for certain when accident occurs during serum recycle
One stage is handled, while not having to that accident serum pot is arranged again, is reduced the requirement to agitating paddle, is reduced and be produced into
This；
The second level Superstrory turbulent mass transfer tower is connected by exhaust pipe with discharging structure, and discharging structure includes pressurization air-introduced machine
And chimney, air-introduced machine is pressurized between second level Superstrory turbulent mass transfer tower and chimney, and the input terminal for being pressurized air-introduced machine is provided with master
Transportation work style door；
The catalytic structure includes that flow delivery systems, catalyst storage bin, metering powder feeder and size-mixing tank, size-mixing tank include
Size-mixing tank ontology, agitating paddle and frequency modulation send stock pump, and agitating paddle and frequency modulation send stock pump to be fixedly connected with size-mixing tank ontology, and air-flow is defeated
System is sent to be connected with catalyst storage bin, the discharge port of catalyst storage bin is corresponding with metering powder feeder, and size-mixing tank setting is sent in metering
The lower section of powder device, size-mixing tank access external water source；
The water circulation structure includes circulating water pool and cooling tower, and water circulating pump is provided on circulating water pool and cooling tower supplies
Water pump, circulating water pool are connected with cooling tower, and cooling tower carries out the catalyst slurry in circulating water pool by cooling tower water supply pump
It extracts, cooling effect is played to the catalyst slurry in circulating water pool.
Working principle: the flue-gas dust-removing and desulfurization depickling integrated apparatus is accessed into external power supply first, is then opened respectively
Dust-removal and desulfurizing denitration structure, catalytic structure, water circulation structure, feeding structure and discharging structure switch, from electric precipitator
Flue gas exchanges heat by heat exchange of heat pipe, carries out atomization process subsequently into pre-processing in atomizer, and will be atomized
First flue gas is delivered in cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower, and then air-flow is defeated
System is sent to deliver gases into catalyst storage bin, under the influence of air pressure, catalyst delivers into tune by metering powder feeder
It in stock tank, is mixed with industrial tap water, is stirred and is sized mixing to sizing mixing uniformly by the agitating paddle in size-mixing tank, then pass through tune
Frequency send stock pump to send slurries are catalyzed into circulating water pool, is then synchronized and is sent to cool-down dehumidification device, level-one respectively by water circulating pump
It in Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower, is reacted respectively with flue gas therein, urging after reaction
Agent slurries flow out to recirculated water from cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower respectively
Chi Zhong realizes that the circulation of catalyst slurry is used for multiple times, and successively passes through cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and two
The flue gas that dust-removal and desulfurizing denitration is completed after grade Superstrory turbulent mass transfer tower processing, from the outlet of second level Superstrory turbulent mass transfer tower by increasing
After pressing air-introduced machine pressurization, it is discharged from chimney.
Byproduct production technique: catalyst slurry carries out warehouse after circulatory pool is recycled, to thick byproduct, then
Further it is aoxidized, separated and is filtered, the byproduct refined is simultaneously put in storage preservation.
Above-mentioned flue-gas dust-removing and desulfurization denitrification integrated device is parallel with second row between pressurization air-introduced machine and the chimney
Tracheae is connected to heat exchange of heat pipe and pre-processes in the air inlet pipe between atomizer, and adjusting air valve is provided on second exhaust pipe,
By adjusting air valve control need the incomplete flue gas of single treatment enter in air inlet pipe continue once by pretreatment atomizer,
Cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower carry out secondary treatment, further improve
To the effect of the dust-removal and desulfurizing denitration of flue gas, the environmental-protecting performance of the device is further improved.
Above-mentioned flue-gas dust-removing and desulfurization denitrification integrated device, it is described first input water pipe respectively with pretreatment atomizer,
The connecting pin of cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower is provided with valve, valve control
The flow velocity and intensity of the water flow flowed through in system the first input water pipe, make it have adjustability.
Above-mentioned flue-gas dust-removing and desulfurization denitrification integrated device, it is described second input water pipe respectively with cool-down dehumidification device, one
The connecting pin of grade Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower is provided with valve, control catalyst slurry respectively into
Enter flow velocity when cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower, to control catalysis reaction
Bulk velocity, improve catalysis reaction controllability.
Above-mentioned flue-gas dust-removing and desulfurization denitrification integrated device, the first input water pipe, the second input water pipe and first
Output water pipe is all made of ultra high molecular polyethylene tube material and is made.
The beneficial effects of the utility model are: the system is not necessarily to wet electric precipitation, and to dirt, the SO in inlet flue gas2Content
No maximum requirement, and realize the integration of dedusting, desulphurization and denitration, flue gas is by cooling before being dusted desulphurization denitration
Dehumidifier is cooled down and is dehumidified to flue gas, so that the water capacity in flue gas decreases below 5%, the temperature of flue gas is maintained at 60
Between DEG C -70 DEG C, the flue gas of low temperature and low humidity makes chimney not need to carry out anti-corrosion, level-one Superstrory turbulent mass transfer tower, second level turbulent flow
Mass transfer column divides the setting of tower structure to enable accident is convenient when occurring to handle, it is no longer necessary to accident serum pot be arranged, drop
Low production cost, while the setting of water circulation structure, play the role of recycling catalyst slurry, improve the dress
The environmental-protecting performance set.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the module control figure of the utility model.
Specific embodiment
By make the structure feature to the utility model and the effect of being reached have it is further understand and understanding, to compared with
Good examples and drawings cooperate detailed description, are described as follows:
As shown in Figure 1, 2,
A kind of flue-gas dust-removing and desulfurization denitrification integrated device, including dust-removal and desulfurizing denitration structure, catalytic structure, water circulation knot
Structure, feeding structure and discharging structure；
The output end of the catalytic structure is connected with the input terminal of water circulation structure, feeding structure, water circulation structure with
The input port of dust-removal and desulfurizing denitration structure is connected, and the delivery outlet of dust-removal and desulfurizing denitration structure is tied with water circulation structure and discharging respectively
Structure is connected；
The feeding structure includes heat exchange of heat pipe 11 and pretreatment atomizer 12, input terminal and the outside of heat exchange of heat pipe
Electric precipitator be connected, the output end of heat exchange of heat pipe is connected with atomizer is pre-processed, and pre-processes the output end of atomizer and removes
The connection of dirt denitration desulfurization structure；
The dust-removal and desulfurizing denitration structure includes cool-down dehumidification device 21, level-one Superstrory turbulent mass transfer tower 22 and the superpower rapids of second level
Mass transfer column 23 is flowed, pretreatment atomizer, cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower pass through
First input water pipe 24 is connected in parallel with external source of oxygen, cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and the superpower rapids of second level
Stream mass transfer column passes through the second input water pipe 25 respectively and the first output water pipe 26 is connected in parallel with circulating water pool, cool-down dehumidification device,
Level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower are connected in series by feed pipe and pretreatment atomizer, and level-one is super
Strong turbulence mass transfer column and the tower innovation structure of second level Superstrory turbulent mass transfer tower classification point, so that thing occurs during serum recycle
Therefore when convenient for handling some stage, while not having to that accident serum pot is arranged again, reduce the requirement to agitating paddle, drop
Low production cost；
The second level Superstrory turbulent mass transfer tower is connected by exhaust pipe with discharging structure, and discharging structure includes pressurization air-introduced machine
31 and chimney 32, air-introduced machine is pressurized positioned at second level Superstrory turbulent mass transfer tower and chimney between, and the input terminal for being pressurized air-introduced machine is arranged
There is main road air door 33；
The catalytic structure includes flow delivery systems 41, catalyst storage bin 42, metering powder feeder 43 and size-mixing tank 44, is adjusted
Stock tank includes that size-mixing tank ontology, agitating paddle 441 and frequency modulation send stock pump 442, agitating paddle and frequency modulation send stock pump with size-mixing tank ontology
It is fixedly connected, flow delivery systems are connected with catalyst storage bin, and the discharge port of catalyst storage bin is corresponding with metering powder feeder, size mixing
The lower section of metering powder feeder is arranged in pond, and size-mixing tank accesses external water source；
The water circulation structure includes circulating water pool 51 and cooling tower 52, and 511 He of water circulating pump is provided on circulating water pool
Cooling tower water supply pump 512, circulating water pool is connected with cooling tower, and cooling tower is by cooling tower water supply pump to the catalysis in circulating water pool
Agent slurries are extracted, and cooling effect is played to the catalyst slurry in circulating water pool.
Working principle: the flue-gas dust-removing and desulfurization depickling integrated apparatus is accessed into external power supply first, is then opened respectively
Dust-removal and desulfurizing denitration structure, catalytic structure, water circulation structure, feeding structure and discharging structure switch, from electric precipitator
Flue gas exchanges heat by heat exchange of heat pipe, carries out atomization process subsequently into pre-processing in atomizer, and will be atomized
First flue gas is delivered in cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower, and then air-flow is defeated
System is sent to deliver gases into catalyst storage bin, under the influence of air pressure, catalyst delivers into tune by metering powder feeder
It in stock tank, is mixed with industrial tap water, is stirred and is sized mixing to sizing mixing uniformly by the agitating paddle in size-mixing tank, then pass through tune
Frequency send stock pump to send slurries are catalyzed into circulating water pool, is then synchronized and is sent to cool-down dehumidification device, level-one respectively by water circulating pump
It in Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower, is reacted respectively with flue gas therein, urging after reaction
Agent slurries flow out to recirculated water from cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower respectively
Chi Zhong realizes that the circulation of catalyst slurry is used for multiple times, and successively passes through cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and two
The flue gas that dust-removal and desulfurizing denitration is completed after grade Superstrory turbulent mass transfer tower processing, from the outlet of second level Superstrory turbulent mass transfer tower by increasing
After pressing air-introduced machine pressurization, it is discharged from chimney.
Byproduct production technique: catalyst slurry carries out warehouse after circulatory pool is recycled, to thick byproduct, then
Further it is aoxidized, separated and is filtered, the byproduct refined is simultaneously put in storage preservation.
By taking MgO is catalyst as an example: catalyst MgO powder is added in catalyst storage bin first, it is then defeated by air-flow
Send system by MgO powder from the discharge port of catalyst storage bin stablize output to metering powder feeder on, metering powder feeder by MgO powder send to
In size-mixing tank, industrial tap water, which synchronizes, to be passed into size-mixing tank, at the same start agitating paddle in size-mixing tank catalyst and industry
Tap water is uniformly stirred, and MgO catalyst slurries by frequency modulation send slurry to be pumped in circulating water pool after mixing thoroughly, passes through circulation
Catalyst slurry is carried out reaction with dust-removal and desulfurizing denitration structure and exchanges to obtain MgSO by the effect of water pump3、Mg(HSO3)2And MgSO4
Mixed liquor, be then passed through oxygen and it aoxidized, obtain MgSO3With Mg (HSO3)2Mixed liquor, then pass through waterpower revolve
Stream separator separates it, is further filtered by vacuum belt filter to it, and MgSO is obtained4Filtrate, so
Further MgSO is concentrated in heating afterwards4Solution is added NaOH and is reacted, take clarified solution, carry out further centrifugal filtration, respectively
Obtain Mg (OH)2And Na2SO4Product is dried respectively, is finally put in storage byproduct.
In the present invention, second exhaust pipe is parallel between pressurization air-introduced machine and the chimney be connected to heat pipe heat exchanging
In air inlet pipe between device and pretreatment atomizer, adjusting air valve is provided on second exhaust pipe, controlling by adjusting air valve needs
The incomplete flue gas of single treatment is wanted to enter continuation in air inlet pipe once super by pretreatment atomizer, cool-down dehumidification device, level-one
Strong turbulence mass transfer column and second level Superstrory turbulent mass transfer tower carry out secondary treatment, further improve de- to the dust-removal and desulfurizing of flue gas
The effect of nitre further improves the environmental-protecting performance of the device.
It is described first input water pipe respectively with pretreatment atomizer, cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and two
The connecting pin of grade Superstrory turbulent mass transfer tower is provided with valve, the flow velocity of the water flow flowed through in valve control the first input water pipe and
Intensity makes it have adjustability.
The second input water pipe is superpower with cool-down dehumidification device, level-one respectively as a further improvement of the utility model,
The connecting pin of turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower is provided with valve, and control catalyst slurry respectively enters cooling
Flow velocity when dehumidifier, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower, to control the entirety of catalysis reaction
Speed improves the controllability of catalysis reaction.
The first input water pipe, the second input water pipe and the first output water pipe are all made of ultra high molecular polyethylene tube material
It is made.
The system is not necessarily to wet electric precipitation, and to dirt, the SO in inlet flue gas2Content no maximum requirement, and realize dedusting,
The integration of desulphurization and denitration, flue gas is cooled down and is removed to flue gas by cool-down dehumidification device before being dusted desulphurization denitration
Wet, so that the water capacity in flue gas decreases below 5%, the temperature of flue gas is maintained between 60 DEG C -70 DEG C, the cigarette of low temperature and low humidity
Gas makes chimney not need to carry out anti-corrosion, the setting for dividing tower structure of level-one Superstrory turbulent mass transfer tower, second level turbulent mass transfer tower
Enable accident is convenient when occurring to handle, it is no longer necessary to accident serum pot be set, production cost, while water circulation knot are reduced
The setting of structure plays the role of recycling catalyst slurry, improves the environmental-protecting performance of the device.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model
Kind changes and improvements, these changes and improvements are both fallen in the range of claimed invention.The requires of the utility model
Protection scope defined by appended claims and its equivalent.
Claims (5)
1. a kind of flue-gas dust-removing and desulfurization denitrification integrated device, including dust-removal and desulfurizing denitration structure, catalytic structure, water circulation knot
Structure, feeding structure and discharging structure；
It is characterized in that,
The output end of the catalytic structure is connected with the input terminal of water circulation structure, and feeding structure, water circulation structure are and dedusting
The input port of desulphurization denitration structure is connected, the delivery outlet of dust-removal and desulfurizing denitration structure respectively with water circulation structure and discharging structure phase
Even；
The feeding structure includes heat exchange of heat pipe and pretreatment atomizer, the input terminal and the electric precipitation of outside of heat exchange of heat pipe
Device is connected, and the output end of heat exchange of heat pipe is connected with pretreatment atomizer, and output end and the dedusting denitration for pre-processing atomizer are de-
The connection of sulphur structure；
The dust-removal and desulfurizing denitration structure includes cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer
Tower, pretreatment atomizer, cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower pass through the first input
Water pipe is connected in parallel with external water source, cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower difference
It is connected in parallel by the second input water pipe and the first output water pipe with circulating water pool, cool-down dehumidification device, level-one Superstrory turbulent mass transfer
Tower and second level Superstrory turbulent mass transfer tower are connected in series by feed pipe and pretreatment atomizer；
The second level Superstrory turbulent mass transfer tower is connected by exhaust pipe with discharging structure, and discharging structure includes pressurization air-introduced machine and cigarette
Chimney is pressurized air-introduced machine between second level Superstrory turbulent mass transfer tower and chimney, and the input terminal for being pressurized air-introduced machine is provided with main road wind
Door；
The catalytic structure includes flow delivery systems, catalyst storage bin, metering powder feeder and size-mixing tank, and size-mixing tank includes sizing mixing
Pond ontology, agitating paddle and frequency modulation send stock pump, and agitating paddle and frequency modulation send stock pump to be fixedly connected with size-mixing tank ontology, air-flow delivery system
System is connected with catalyst storage bin, and the discharge port of catalyst storage bin is corresponding with metering powder feeder, and size-mixing tank setting is in metering powder feeder
Lower section, size-mixing tank access external water source；
The water circulation structure includes circulating water pool and cooling tower, and water circulating pump is provided on circulating water pool and cooling tower supplies water
Pump, circulating water pool are connected with cooling tower.
2. flue-gas dust-removing and desulfurization denitrification integrated device according to claim 1, which is characterized in that the pressurization air-introduced machine
Second exhaust pipe is parallel between chimney to be connected to heat exchange of heat pipe and pre-process in the air inlet pipe between atomizer, second row
Adjusting air valve is provided on tracheae.
3. flue-gas dust-removing and desulfurization denitrification integrated device according to claim 1, which is characterized in that the first input water
The pipe connection with pretreatment atomizer, cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower respectively
End is provided with valve.
4. flue-gas dust-removing and desulfurization denitrification integrated device according to claim 1, which is characterized in that the second input water
Connecting pin of the pipe respectively with cool-down dehumidification device, level-one Superstrory turbulent mass transfer tower and second level Superstrory turbulent mass transfer tower is provided with valve
Door.
5. flue-gas dust-removing and desulfurization denitrification integrated device according to claim 1, which is characterized in that the first input water
Pipe, the second input water pipe and the first output water pipe are all made of ultra high molecular polyethylene tube material and are made.
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| CN109107384A (en) * | 2018-10-11 | 2019-01-01 | 江苏三井环保股份有限公司 | A kind of flue-gas dust-removing and desulfurization denitrification integrated device |
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2018
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| CN109107384A (en) * | 2018-10-11 | 2019-01-01 | 江苏三井环保股份有限公司 | A kind of flue-gas dust-removing and desulfurization denitrification integrated device |
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