CN207614642U - A kind of system suitable for high/low temperature gaseous recombination desulfurization denitration method - Google Patents
A kind of system suitable for high/low temperature gaseous recombination desulfurization denitration method Download PDFInfo
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- CN207614642U CN207614642U CN201721358417.0U CN201721358417U CN207614642U CN 207614642 U CN207614642 U CN 207614642U CN 201721358417 U CN201721358417 U CN 201721358417U CN 207614642 U CN207614642 U CN 207614642U
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- fluid reservoir
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Abstract
The system suitable for high/low temperature gaseous recombination desulfurization denitration method of the utility model, including desulphurization denitration tower, waste-water treatment tower, the first fluid reservoir and the second fluid reservoir, are characterized in that：Uniform board, turbulator, catalytic contactor, spray tube and three phase separator are disposed in desulphurization denitration tower internal cavities from the bottom to top, through-hole is uniformly provided on uniform board, impeller is evenly arranged on turbulator, multiple nozzles are provided on spray tube；Including storage NaClO, the first fluid reservoir of NaOH solution and storage NH4Second fluid reservoir of Cl solution.The system for desulfuration and denitration of the utility model, by NO, SO in flue gas in desulphurization denitration tower2、NO2It is absorbed, being formed will not be to N that air pollutes2With will not can reach good desulfurization off sulfide effect under high temperature or cryogenic conditions, for efficiency up to 95% or more, advantageous effect is notable, is suitable for the application of popularization to the NaCl that water body pollutes.
Description
Technical field
The utility model is related to a kind of system for desulfuration and denitration, more specifically, more particularly to a kind of suitable for height wet
The system of mutually compound desulfurization denitration method.
Background technology
Contain sulfur and nitrogen oxides in coal-fired flue-gas and industrial smoke, is cause environment and air pollution main
Factor, desulphurization denitration processing are to remove the process of nitride and sulfide in flue gas.In nitrogen oxides in flue gas, predominantly NO
And NO2, the wherein accounting of NO is about 90~95%, the main selective noncatalytic reduction of flue-gas denitration process（SNCR）And choosing
Selecting property catalytic reduction method（SCR）, for wherein SNCR denitration method without using catalyst, required flue-gas temperature is high（Usually 850
~1100 DEG C）, be not suitable under low temperature denitrating flue gas processing.Although the required flue-gas temperature of SCR denitration method is relatively low（Usually
It is 300~600 DEG C）, but its cost is 10 times of SNCR or so, is not suitable for for the fume treatment of middle and small scale.
The method of denitration of above two SNCR and SCR are both needed to use urea or liquefied ammonia, so as to by the total nitrogen oxides of flue gas
It is reduced to N2And H2O, but the production of liquefied ammonia, urea is also highly energy-consuming, therefore carried out at denitration using the product of this highly energy-consuming
Reason, is not long-term plan from the point of view of energy conservation and sustainable development.Meanwhile the denitration of SNCR and SCR, will produce to environment and
Human body endangers larger NO3-N and NO2-N, and the precipitation energy consumption of NO3-N and NO2-N is higher in waste liquid, if enterprise
Waste discharge slag, waste liquid steathily, it will serious pollution caused to soil and water body, nitrate be decomposed into nitrite have it is stronger carcinogenic
Property is all greatly to endanger to environmental protection and health.
Flue gas desulfurization（Flue gas desulfurization, abbreviation FGD）, in FGD technologies, by the type of desulfurizing agent
Division can divide a variety of methods, wherein with CaCO3（Lime stone）Based on calcium method, be the desulfurization side generally used in world wide
Method.But the method for denitration system structure of this lime stone is more complicated, takes up a large area, cost of investment height, and power consumption is higher, and
And also need to handle waste water, it is not suitable for the low fume treatment with middle and small scale of flue gas sulfur-bearing.
Invention content
The shortcomings that the utility model is in order to overcome above-mentioned technical problem provides a kind of de- suitable for high/low temperature gaseous recombination
The system of sulphur method of denitration.
The system suitable for high/low temperature gaseous recombination desulfurization denitration method of the utility model, including it is desulphurization denitration tower, useless
Water process tower, the first fluid reservoir and the second fluid reservoir, the lower end and upper end of desulphurization denitration tower are respectively arranged with and its internal cavities
The air inlet pipe and exhaust pipe communicated；It is characterized in that：Be disposed with from the bottom to top in desulphurization denitration tower internal cavities uniform board,
Turbulator, catalytic contactor, spray tube and three phase separator are uniformly provided with through-hole on uniform board, are uniformly arranged on turbulator
There is impeller, multiple nozzles are provided on spray tube；Spray pump is provided on the outside of desulphurization denitration tower, the import of spray pump is by the road
It is communicated with the bottom of desulphurization denitration tower, outlet is communicated with spray tube by the road；The bottom of desulphurization denitration tower is through drawing liquid pump and waste water
Treating column communicates；
Including storage NaClO, the first fluid reservoir of NaOH solution and storage NH4Second fluid reservoir of Cl solution, the first storage
Flow container is communicated through the first dosing pump with the bottom of desulphurization denitration tower, bottom of second fluid reservoir through the second dosing pump and waste-water treatment tower
Portion communicates, and the bottom of waste-water treatment tower is provided with drain pipe；Connect on the water inlet of first dosing pump and the second dosing pump
It is connected to water supply pipe.
The system suitable for high/low temperature gaseous recombination desulfurization denitration method of the utility model, if the catalytic contactor by
The dry catalytic Contact unit composition being uniformly fixed on transverse plate, catalytic Contact unit ecto-entad are nested together but not by several
The conically shaped of contact forms, and the small opening of conically shaped downwards, mutually fix by adjacent conical cylinder through connecting rod；The matrix of conically shaped
Material is TiO2, surface is coated with Ni2O3、Cu0、WO3And MoO3The nano particle of formation, Ni2O3Nano particle and Cu0 nanometers
Particle is realized to NaClO, NaOH solution and NO, SO2The catalysis of reaction, WO3And MoO3For antioxidant.
The utility model has the beneficial effects that：The utility model is suitable for high/low temperature gaseous recombination desulfurization denitration method
System is made of desulphurization denitration tower, waste-water treatment tower, the first fluid reservoir and the second fluid reservoir, in desulphurization denitration tower internal cavities
Be disposed with uniform board, turbulator, catalytic contactor, spray tube and three phase separator from the bottom to top, the first fluid reservoir due to
Store NaClO, NaOH aqueous solution, the second fluid reservoir for storing aqueous ammonium chloride solution, in desulphurization denitration tower by flue gas with
The reaction of spray liquid, by NO, SO in flue gas2With a small amount of NO2It is absorbed, is then passing through ammonium chloride solution and sodium nitrate
With the reaction of sodium nitrite, by water nitric acid and nitrite ion be converted into nitrogen and release, foring will not be to big
The N that gas pollutes2With the NaCl that water body pollutes will not be avoided previous flue gas desulfurization and denitrification and generate nitrate and Asia
Nitrate and the phenomenon that polluted-water, can reach under 850~1100 DEG C of high temperature or 300~600 DEG C of cryogenic conditions
Good desulfurization off sulfide effect, denitrification efficiency up to 95% or more, for flue gas while desulphurization denitration provide a kind of row it
Efficient system, advantageous effect is notable, is suitable for the application of popularization.
Further, by using by TiO2、Ni2O3、Cu0、WO3And MoO3The catalytic contactor of composition, TiO2For matrix
Material, WO3And MoO3As antioxidant, Ni2O3, Cu0 nano particles realize catalysis reaction, both ensure that flue gas and spray liquid
Come into full contact with, and realize NO, SO2、NO2With abundant, the fast reaction of spray liquid.
Description of the drawings
Fig. 1 is the structural schematic diagram of the high/low temperature gaseous recombination desulfuring and denitrifying apparatus of the utility model；
Fig. 2 is the structural schematic diagram of catalytic contactor in the utility model.
In figure：1 desulphurization denitration tower, 2 waste-water treatment towers, 3 air inlet pipe, 4 exhaust pipes, 5 uniform boards, 6 turbulators, 7 catalysis connect
Tentaculum, 8 spray tubes, 9 three phase separators, 10 nozzles, 11 first fluid reservoirs, 12 second fluid reservoirs, 13 spray pumps, 14 first dosings
Pump, 15 second dosing pumps, 16 drawing liquid pumps, 17 water supply pipes, 18 drain pipes, 19 exhaust pipes, 20 catalytic Contact units, 21 transverse plates,
22 male-tapered cylinders, 23 inner conical cylinders, 24 first intermediate conically shapeds, 25 second intermediate conically shapeds, 26 connecting rods.
Specific implementation mode
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, the structural schematic diagram of the high/low temperature gaseous recombination desulfuring and denitrifying apparatus of the utility model is given,
By desulphurization denitration tower 1, waste-water treatment tower 2, the first fluid reservoir 11, second the 12,13, first dosing pump 14 of fluid reservoir, the second dosing
Pump 15 and drawing liquid pump 16 form, and the inside of desulphurization denitration tower 1 is cylindrical cavity, and bottom and upper end are respectively arranged with air inlet
Pipe 3 and exhaust pipe 4, flue gas to be clean are passed through desulphurization denitration tower 1 through air inlet pipe 3, and purified flue gas is discharged through exhaust pipe 4.
Uniform board 5, turbulator 6, catalytic contactor 7, spray tube 8 are disposed in the internal cavities of desulphurization denitration tower 1 from the bottom to top
With three phase separator 9, through-hole is uniformly provided on uniform board 5, so that flue gas passes through.It is evenly arranged with impeller on turbulator 6.Into
The flue gas entered realizes being uniformly distributed on 1 cross section of desulphurization denitration tower through uniform board 5 first, then by turbulator 6
Impeller increases the flow velocity of flue gas.
The liquid of 1 bottom of desulphurization denitration tower is evacuated to through spray pump 13 in spray tube 8, to realize recycling for spray liquid,
Liquid is sprayed through the nozzle 10 on spray tube 8, and spray liquid uses the aqueous solution of sodium hypochlorite and sodium hydroxide.Catalytic contactor 7
Between turbulator 6 and spray tube 8, liquid sprays on catalytic contactor 7, is realized when flue gas passes through catalytic contactor 7
With being sufficiently mixed for liquid, to have the function that remove sulfureous in flue gas oxide and nitrogen oxides.Flue gas is realized and spray liquid
After contact, mixing, reaction, purification is realized, the flue gas of purification is again through three phase separator 9, and liquid is separated, and to flow to desulfurization de-
The bottom of nitre tower 1, solid particle are trapped in three phase separator 9, and free of contamination gas is discharged through exhaust pipe 4.
The bottom of shown desulphurization denitration tower 1 is connected with drawing liquid pump 16 with waste-water treatment tower 2 by the road, waste-water treatment tower 2
In be stored with ammonium chloride solution, when the solution in desulphurization denitration tower 1 tend to saturation when, then be evacuated to waste-water treatment tower through drawing liquid pump 16
In 2, to realize the removal of nitrate anion and nitrite ion in solution.The bottom of waste-water treatment tower 2 is provided with drain pipe 18, on
End is provided with exhaust pipe 19, and the solution for removing nitrate anion and nitrite anions is discharged through drain pipe 18, will not be caused to extraneous water body
Pollution.It reacts the nitrogen generated to be discharged through exhaust pipe 19, air will not be polluted.
Shown first fluid reservoir 11 is used to store the aqueous solution of sodium hypochlorite and sodium hydroxide, sodium hypochlorite and sodium hydroxide
Aqueous solution be evacuated in desulphurization denitration tower 1 through the first dosing pump 14.Shown second fluid reservoir 12 is for storing the water-soluble of ammonium chloride
Liquid, ammonium chloride solution are evacuated to through the second dosing pump 15 in waste-water treatment tower 2.14 and second dosing pump 15 of shown first dosing pump
Water inlet end is connected in water supply pipe 17, to realize moisturizing and to the diluting effect of solution.
As shown in Fig. 2, the structural schematic diagram of catalytic contactor in the utility model is given, by transverse plate 21 and uniformly
The catalytic Contact unit 20 being set on transverse plate 21 forms, and each catalytic Contact unit 20 is by multiple tapers being nested together
Cylinder composition, conically shaped as shown in the figure use 4（In male-tapered cylinder 22, inner conical cylinder 23, the first intermediate conically shaped 24 and second
Between conically shaped 25）, each conically shaped is arranged in the form of " big mouth upward, small mouth down ", and is not connect between adjacent conical cylinder
It touches, but is fixedly connected by connecting rod 26.
Each conically shaped TiO of catalytic contactor 72For basis material, surface is coated with Ni2O3、Cu0、WO3And MoO3Shape
At nano particle, Ni2O3Nano particle and Cu0 nano particles are realized to NaClO, NaOH solution and NO, SO2The catalysis of reaction,
WO3And MoO3For antioxidant.
After spray liquid is sprayed on catalytic contactor 7, due to conically shaped surface Ni2O3、Cu0、WO3And MoO3Nanometer
The presence of particle can make spray liquid uniformly be attached on conically shaped, when flue gas flows through catalytic contactor 7 so that flue gas with
Spray liquid contact is more abundant, while in catalyst n i2O3, under the action of Cu0, be advantageously implemented NO, SO in flue gas2、NO2With
The abundant reaction of sodium hypochlorite and sodium hydroxide solution.Simultaneously as the small mouth down of conically shaped so that the lower end of each conically shaped
Opening is gathered into water layer, and flue gas needs are passed through from the water layer so that flue gas not only has " gas phase mixes " with spray liquid
Effect, but also have the effect of in " gas is passed through solution ".
Claims (1)
1. a kind of system suitable for high/low temperature gaseous recombination desulfurization denitration method, including desulphurization denitration tower（1）, waste-water treatment tower
（2）, the first fluid reservoir（11）With the second fluid reservoir（12）, the lower end and upper end of desulphurization denitration tower are respectively arranged with and its internal sky
The air inlet pipe that chamber communicates（3）And exhaust pipe（4）；It is characterized in that：It is set gradually from the bottom to top in desulphurization denitration tower internal cavities
There is uniform board（5）, turbulator（6）, catalytic contactor（7）, spray tube（8）And three phase separator（9）, uniformly open up on uniform board
There is through-hole, impeller is evenly arranged on turbulator, multiple nozzles are provided on spray tube（10）；The outside of desulphurization denitration tower is arranged
There is spray pump（13）, the import of spray pump communicates with the bottom of desulphurization denitration tower by the road, and outlet is communicated with spray tube by the road；
The bottom of desulphurization denitration tower is through drawing liquid pump（16）It is communicated with waste-water treatment tower；
The first fluid reservoir including storage NaClO, NaOH solution（11）With storage NH4Second fluid reservoir of Cl solution（12）, first
Fluid reservoir is through the first dosing pump（14）It is communicated with the bottom of desulphurization denitration tower, the second fluid reservoir is through the second dosing pump（15）With waste water
The bottom for the treatment of column communicates, and the bottom of waste-water treatment tower is provided with drain pipe（18）；First dosing pump and the second dosing pump
Water inlet on be respectively connected with water supply pipe（17）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358417.0U CN207614642U (en) | 2017-10-20 | 2017-10-20 | A kind of system suitable for high/low temperature gaseous recombination desulfurization denitration method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358417.0U CN207614642U (en) | 2017-10-20 | 2017-10-20 | A kind of system suitable for high/low temperature gaseous recombination desulfurization denitration method |
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| CN207614642U true CN207614642U (en) | 2018-07-17 |
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| CN201721358417.0U Expired - Fee Related CN207614642U (en) | 2017-10-20 | 2017-10-20 | A kind of system suitable for high/low temperature gaseous recombination desulfurization denitration method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107754599A (en) * | 2017-10-20 | 2018-03-06 | 山东中源节能环保科技有限公司 | A kind of high/low temperature gaseous recombination desulfurization denitration method |
| CN109012152A (en) * | 2018-07-30 | 2018-12-18 | 芜湖凯奥尔环保科技有限公司 | A kind of denitration wastewater waste gas cleaning system |
| CN109289523A (en) * | 2018-11-22 | 2019-02-01 | 江苏海事职业技术学院 | A kind of boat diesel engine exhaust gas integrated purification device |
| CN109289524A (en) * | 2018-11-22 | 2019-02-01 | 江苏海事职业技术学院 | A method of applied to ship tail gas desulphurization denitration |
| CN109289522A (en) * | 2018-11-22 | 2019-02-01 | 江苏海事职业技术学院 | A kind of marine internal combustion engine tail gas desulfurization denitration removal device |
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2017
- 2017-10-20 CN CN201721358417.0U patent/CN207614642U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107754599A (en) * | 2017-10-20 | 2018-03-06 | 山东中源节能环保科技有限公司 | A kind of high/low temperature gaseous recombination desulfurization denitration method |
| CN107754599B (en) * | 2017-10-20 | 2024-02-06 | 山东中源节能环保科技有限公司 | High-low temperature gas phase composite desulfurization and denitrification method |
| CN109012152A (en) * | 2018-07-30 | 2018-12-18 | 芜湖凯奥尔环保科技有限公司 | A kind of denitration wastewater waste gas cleaning system |
| CN109289523A (en) * | 2018-11-22 | 2019-02-01 | 江苏海事职业技术学院 | A kind of boat diesel engine exhaust gas integrated purification device |
| CN109289524A (en) * | 2018-11-22 | 2019-02-01 | 江苏海事职业技术学院 | A method of applied to ship tail gas desulphurization denitration |
| CN109289522A (en) * | 2018-11-22 | 2019-02-01 | 江苏海事职业技术学院 | A kind of marine internal combustion engine tail gas desulfurization denitration removal device |
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Granted publication date: 20180717 Termination date: 20211020 |